Gotowe bibliografie tematyczne / Silicone hydrogel

Gotowa bibliografia na temat „Silicone hydrogel”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 25 kwietnia 2022

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Artykuły w czasopismach na temat "Silicone hydrogel"

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Tran, Nguyen-Phuong-Dung, i Ming-Chien Yang. "Synthesis and Characterization of Silicone Contact Lenses Based on TRIS-DMA-NVP-HEMA Hydrogels". Polymers 11, nr 6 (31.05.2019): 944. http://dx.doi.org/10.3390/polym11060944.

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In this study, silicone-based hydrogel contact lenses were prepared by the polymerization of 3-(methacryloyloxy)propyltris(trimethylsiloxy)silane (TRIS), N,N-dimethylacrylamide (DMA), 1-vinyl-2-pyrrolidinone (NVP), and 2-hydroxyethylmethacrylate (HEMA). The properties of silicone hydrogel lenses were analyzed based on the methods such as equilibrium water content, oxygen permeability, optical transparency, contact angle, mechanical test, protein adsorption, and cell toxicity. The results showed that the TRIS content in all formulations increased the oxygen permeability and decreased the equilibrium water content, while both DMA and NVP contributed the hydrophilicity of the hydrogels. The maximum value of oxygen permeability was 74.9 barrers, corresponding to an equilibrium water content of 44.5% as well as a contact angle of 82°. Moreover, L929 fibroblasts grew on all these hydrogels, suggesting non-cytotoxicity. In general, the silicone hydrogels in this work exhibited good oxygen permeability, stiffness, and optical transparency as well as anti-protein adsorption. Hence, these silicone hydrogel polymers would be feasible for making contact lens.
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Muller, Guy-Henri. "Hydrogel-Filled Mammary Prosthesis". American Journal of Cosmetic Surgery 15, nr 3 (wrzesień 1998): 259–62. http://dx.doi.org/10.1177/074880689801500306.

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Introduction: The silicone breast implant controversy and the moratorium on the use of silicone-gel-filled breast implants in the U.S., Canada, and France has led to a search for substitutes for silicone-gel implants that are safe, pliable, and still firm enough to hold its shape. Hydrogel is being evaluated as an alternative to silicone gel for filling breast implants. Materials and Methods: Eighteen hundred ninety hydrogel-filled breast implants were inserted into patients in France and Italy between 1992 and 1993. The postoperative results of these procedures were reviewed. Results: Twelve implant ruptures occurred at the time of insertion secondary to too small an incision and lack of prewarming of the implant. Two ruptures went unnoticed and were satisfactorily resolved with a revision of the first procedure. One capsule contracture occurred within one year. Visual results according to patients and surgeons were satisfactory. The palpable results are less favorable than silicone-gel implants, but better than saline-filled implants. Discussion: Hydrogel is biocompatible. The breakdown products of the implant filler, if they migrate outside the shell, should not be toxic. Because hydrogel is a biomaterial filler to which water is added to reach an equilibrium point, it mimics the consistency of living tissue. Conclusions: Hydrogel appears to be a favorable substitute for silicone gel.
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Shin, Su-Mi, i A.-Young Sung. "Preparation and Analysis of Functional Silicone Hydrogel Lenses Containing ZrO2 and Antimony Tin Oxide Nanoparticles". Journal of Nanoscience and Nanotechnology 21, nr 9 (1.09.2021): 4649–53. http://dx.doi.org/10.1166/jnn.2021.19291.

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This study prepared silicone hydrogel ophthalmic lenses using 2-hydroxyethylmethacrylate (HEMA), synthesized silicone monomer (SID), dimethylarsinic acid (DMA), N-hydroxyethyl acrylamide (HEA), ethylene glycol dimethacrylate (a crosslinking agent, EGDMA), and azobisisobutyronitrile (an initiator, AIBN). Also, Zirconium oxide (ZrO2), antimony tin oxide (ATO) nanoparticles were added to the silicone hydrogel material to analyze the characteristics of the nanoparticles. The mixture was heated at 130 °C for 2 hours to produce the ophthalmic contact lens by cast mould method. As a result, the manufactured silicone hydrogel lens was prepared having high oxygen permeability and tensile strength while satisfying the basic requirements of ophthalmic hydrogel lens materials. Also, the addition of ZrO2 NPs increased tensile strength of the manufactured lens, and ATO NPs were found to improve wettability. Therefore, ZrO2 and ATO nanoparticles can be used effectively as additives for functional ophthalmic silicone hydrogel lenses.
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Shi, Xinfeng, Charlie Chen, Ronghua Liu, Paul Lee, Steve Diamanti i Paul Richardson. "Silicone hydrogel properties based upon effective silicone chemistry". Contact Lens and Anterior Eye 41 (czerwiec 2018): S7. http://dx.doi.org/10.1016/j.clae.2018.04.100.

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Peev, Nikola. "WETTABILITY – ANOTHER PARAMETER FOR GOOD FITTING OF A SILICONE-HYDROGEL DAILY DISPOSABLE CONTACT LENS". Teacher of the future 31, nr 4 (5.06.2019): 1001–4. http://dx.doi.org/10.35120/kij31041001p.

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The modern world is very fast and dynamic. Consumer requirements rise to every commodity part of their everyday life - food, clothing, cosmetics, and medical devices. Eye care and eye health are also part of them. Companies producing contact lenses work daily to improve the safety and comfort of wearing, as well as on the technical characteristics of the material (type of material, wear time, module, Dk / t etc.). Silicon hydrogel contact lenses (SiHy) were introduced almost two decades ago. At that time it was estimated that there are about 70 million contact lenses all over the world. Since then, their number has doubled and a significant majority now have silicone-hydrogel contact lenses, resulting in a steady and noticeable reduction in the number of regular hydrogel lenses. When the first one-day silicon-hydrogel contact lenses were introduced in 2008, they were announced as breakthroughs in technology. When they were introduced to the market, they were presented in spherical, toric and multifocal designs, which led to a significant increase in the use / prescription of silicon-hydrogel daily disposable contact lenses. A survey conducted in 2014 by the International Consortium illustrates this point. Although, according to this study, the use of SiHy contact lenses varies widely across the world. In the United States, Canada, Australia and the United Kingdom, four to six times more patients were fitted with silicone-hydrogel CLs compared to hydrogels in 2014 and in each country, daily disposable SiHy contact lenses were prescribed with a larger frequency compared to daily disposable hydrogel lenses. It is important to make a good fit to ensure and increase the comfort of wearing contact lenses. In addition to some of the standard fitting techniques such as: keratometry and choice of base curve of the lens; size and eccentricity; an assessment of the mobility of a lens placed in the eye - look positions, mobility, push up test, can be added and the wetting of the contact lens. Even in perfect fit, if the lens does not interact well with the tear film, it would lead to complaints and discomfort in the patient. The degree of wetting is determined by the balance between adhesive and cohesive forces acting on the surface of the lens. CLs, which can support full wetting, allow a tight coating of the tear film, a smooth recovery of the tear layer after eyelid opening and good visual acuity. The interaction between CL, eye surface and tear film is vital to their successful fit. It has long been known that both the organic and inorganic components of the tear film and anterior surface of the eye can deposit deposits on the contact lenses. There are various non-invasive methods for assessing the tear film and, above all, the lipid layer. Some of these are Non invasive breakup time (NIBUT) and specular biomicroscopy. In the present work we will look at daily disposable silicone-hydrogel contact lenses that have been tested in vivo for good wetting, stability and good regeneration of the tear film.
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Krysztofiak, Katarzyna, Kamila Ciężar i Mikołaj Kościński. "Raman Imaging of Layered Soft Contact Lenses". Journal of Applied Biomaterials & Functional Materials 15, nr 2 (kwiecień 2017): 149–52. http://dx.doi.org/10.5301/jabfm.5000329.

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Background Daily disposable contact lenses are gaining in popularity among practitioners and wearers for the improved ocular health and subjective outcomes they offer. Recently a novel daily disposable contact lens material with water gradient technology was introduced. Delefilcon A lenses consist of a 33% water content silicone hydrogel core and an outer hydrogel layer which is totally free of silicone and contains 80% water. Methods The aim of the present study was to confirm the layered structure of delefilcon A contact lenses. Thickness of hydrogel coating on the silicone hydrogel core was assessed using Raman spectroscopy. To investigate the layered structure of the material, depth spectra of the lenses were recorded. Results The results obtained suggest that at about 6 μm a boundary between the hydrogel layer and silicone hydrogel core exists, which is in good agreement with the manufacturer's data. Conclusions Data collected in this experiment confirm a water gradient at the delefilcon A lens surface.
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Pulliero, Alessandra, Aldo Profumo, Camillo Rosano, Alberto Izzotti i Sergio Claudio Saccà. "Therapeutic Hydrogel Lenses and the Antibacterial and Antibiotic Drugs Release". Applied Sciences 11, nr 4 (22.02.2021): 1931. http://dx.doi.org/10.3390/app11041931.

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The aim of this research was to evaluate the effects of different lens types on the availability and efficacy of anti-inflammatory and antibiotic drugs. Three lens types were examined: (1) nonionic hydrogel lenses; (2) ionic hydrogel lenses; and (3) silicone hydrogel lenses. The lenses were incubated with (a) dexamethasone; (b) betamethasone; (c) bromophenacyl bromide; and (d) chloramphenicol. Drug availability was quantified by gradient HPLC, and chloramphenicol antibacterial activity was quantified by testing the inhibition of Salmonella typhimurium growth on agar. The lens allowing the most abundant passage of betamethasone was the ionic hydrogel lens, followed by the silicone hydrogel lens and nonionic hydrogel lens. The lens allowing the most abundant passage of dexamethasone was the ionic hydrogel lens, but only at 0.5 h and 1 h. Regarding chloramphenicol, the ionic hydrogel lens and silicone hydrogel lens allowed more abundant passage than the nonionic hydrogel lens. These results highlight the relevance of adapting lenses to anti-inflammatory therapy, thus allowing a personalized medical approach.
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Rex, Jessica, Scott Perry i Jessie Lemp. "Concentrations of silicon at silicone hydrogel contact lens surfaces". Contact Lens and Anterior Eye 41 (czerwiec 2018): S6. http://dx.doi.org/10.1016/j.clae.2018.04.097.

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Nichols, Jason J. "Deposition on Silicone Hydrogel Lenses". Eye & Contact Lens: Science & Clinical Practice 39, nr 1 (styczeń 2013): 19–22. http://dx.doi.org/10.1097/icl.0b013e318275305b.

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Keir, Nancy, i Lyndon Jones. "Wettability and Silicone Hydrogel Lenses". Eye & Contact Lens: Science & Clinical Practice 39, nr 1 (styczeń 2013): 99–107. http://dx.doi.org/10.1097/icl.0b013e31827d546e.

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Rozprawy doktorskie na temat "Silicone hydrogel"

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Rutschilling, Ryan R. "Evaluation of Wear Experience with Silicone Hydrogel Lenses in Current Silicone Hydrogel Planned Replacement Lens Wearers". The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1618559832574561.

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Rubido, Jacinto S. "Ocular response to silicone-hydrogel contact lenses". Thesis, Aston University, 2004. http://publications.aston.ac.uk/14538/.

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The thesis investigates the ocular response to silicone-hydrogel (SiH) contact lens wear, a relatively new contact lens material that has a higher modulus of rigidity and different surface coating than used in conventional hydrogel materials. The properties of SiH materials differ significantly from conventional hydrogels and, using subjective and objective means of assessment, the thesis examines how these properties affect reflection and biometry, ocular physiology, tear film characteristics, symptomatology, adverse events and complications. A range of standard and newly designed investigative techniques were employed, and latter involving novel imaging techniques, for the objective assessment of physiological changes which occur with contact lens wear. The study is the first to combine these techniques with biochemical analyses of the tear film composition. Forty-seven subjects were fitted with SiH lenses and randomly allocated to one of the two materials currently on the market (Lotrafilcon A or Balafilcon A) on an either daily or continuous wear basis. An additional control group of 14 age-matched non-contact lens wearers were monitored over the same period. Measurements were taken before and 1, 3, 6, 12 and 18 months after initial fitting. The findings reported in this thesis will enable contact lens practitioners and manufacturers to understand further the optical, physiological and biochemical nature of the ocular response to SiH contact lenses and hence facilitate the development of this important generation of contact lens material.
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Tam, Ngai Keung. "Comfort and Compatibility of Silicone Hydrogel Contact Lenses". BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/4031.

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Silicone Hydrogel (SiHy) contact lenses are highly successful compared to previous soft lenses; they were developed to provide superior oxygen permeability. However, the hydrophobic natures of the silicone segments enhance lipid sorption which may diminish the lens surface wettability, clarity and comfort. While lens and lens care product are designed to remove lipid deposition, there is lack of experimental evidence to evaluate the actual performances with respect to lipid removal. An in vitro model using an artificial tear fluid containing radiolabeled lipids was employed in this thesis research to evaluate the efficacy of different multi-purpose lens care solutions in removing lipids from SiHy contact lenses. Additional rubbing with the lens care solution is often encouraged by professionals. Part of this research evaluated the effect of additional rubbing process on lipid removal. Overall, a multi-purpose solution (MPS) for lens care, Opti-Free PureMoist®, removed the most lipid deposition from lenses (senofilcon A, comfilcon A, and balafilcon A and one conventional hydrogel lens polymacon). The overall removal percentages were approximately 55% of DPPC and 28% of cholesterol from a conventional hydrogel. However, the MPSs did not remove lipids effectively from SiHy lenses. The highest percentages of removal were 3.08% of DPPC and 0.76% of cholesterol from SiHy lotrafilcon B lenses with Opti-Free PureMoist. The rubbing process increased the amount of removal in some MPSs, but the effects were small. The lack of removal of lipid suggests that the surfactants in the MPSs are not hydrophobic enough to remove lipids from SiHy lenses. Apparently a majority of deposited lipids absorbed into the lens matrix as rubbing did not enhance removal significantly. Future study on determining the concentration profile of lipid sorption throughout the lens thickness is encouraged. Another topic in this research thesis is the use of hydrogel lenses to deliver comfort agents or lubricating molecules from lenses. A screening study was performed in this research to select possible agents to be loaded into several SiHy macromer formulations. Experiments showed that comfort agents PNVP and Kollidon were the best candidates for such a procedure.
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Nagapatnam, Subbaraman Lakshman. "Lysozyme Deposition Studies on Silicone Hydrogel Contact Lens Materials". Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/1245.

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Over 60 proteins have been detected in the tear film and among these lysozyme has attracted the greatest attention. Several techniques for elucidating the identity, quantity and conformation of lysozyme deposited on soft contact lenses have been developed. Lysozyme also deposits on the newly introduced silicone hydrogel (SH) lens materials, but in extremely low levels compared to conventional hydrogel lenses. Hence, a major analytical complication with the study of the SH contact lens materials relates to the minute quantity of deposited lysozyme. The first project of this thesis involved the development of a method whereby lysozyme mass extracted from SH lens materials would be preserved over time and would be compatible with an optimized Western blotting procedure. This methodological development was incorporated into a clinical study (CLENS-100® and Silicone Hydrogels ? CLASH study) wherein the difference in the degree of total protein, the difference in lysozyme deposition and activity recovered from lotrafilcon A SH lens material when subjects used surfactant containing rewetting drops (CLENS-100®) versus control saline was investigated. The remaining experiments were in vitro experiments wherein the lenses were doped in artificial lysozyme solution containing 125I-labeled lysozyme. These experiments were performed to gain insight into the kinetics of lysozyme deposition on SH lens materials and also the efficacy of a reagent in extracting lysozyme from SH lens materials. A protocol was developed whereby the percentage loss of lysozyme mass found on lotrafilcon A SH lenses was reduced from approximately 33% to <1% (p<0. 001), following extraction and resuspension. The results from the CLASH study demonstrated that when subjects used a surfactant containing rewetting drop instead of a control saline drop total protein deposition (1. 2±0. 7 µg/lens versus 1. 9±0. 8 µg/lens, p<0. 001), lysozyme deposition (0. 7±0. 5 µg/lens versus 1. 1±0. 7 µg/lens, p<0. 001) and percentage lysozyme denaturation (76±10% versus 85±7%, p=0. 002) were all reduced. The results from the kinetics study demonstrated that lysozyme accumulated rapidly on etafilcon A lenses (1 hr, 98±8 µg/lens), reached a maximum on the 7th day (1386±21 µg/lens) and then reached a plateau (p=NS). Lysozyme accumulation on FDA Group II and SH lenses continued to increase across all time periods, with no plateau being observed (p<0. 001). The results from the extraction efficiency study showed that 0. 2% trifluoroacetic acid/ acetonitrile was 98. 3±1. 1% and 91. 4±1. 4% efficient in extracting lysozyme deposited on etafilcon A and galyfilcon lenses, while the lysozyme extraction efficiency was 66. 3±5. 3 % and 56. 7±3. 8% for lotrafilcon A and balafilcon lens materials (p<0. 001). The results from these studies re-emphasize that novel SH lens materials are highly resistant to protein deposition and demonstrate high levels of biocompatibility.
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Szczotka-Flynn, Loretta B. "The Longitudinal Analysis of Silicone Hydrogel Contact Lens Study". Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1257182345.

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Schafer, Jeffrey M. "A characterization of dryness symptoms with Silicone Hydrogel contact lenses". The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1407508203.

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Lorentz, Holly. "Lipid Deposition on Hydrogel Contact Lenses". Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2963.

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The primary objective of this study was to quantify and characterise lipid deposition on soft (hydrogel) contact lenses, particularly those containing siloxane components. Studies involving a variety of in vitro doping and in vivo worn contact lenses were undertaken, in which lipid deposition was analyzed by either TLC or HPLC. Specific experiments were completed to optimize a method to extract the lipid from the lens materials, to compare the total lipid deposition on nine different hydrogel lenses and to analyze the effect that lipid deposition had on wettability. A method for extracting lipid from contact lenses using 2:1 chloroform: methanol was developed. This study also showed that siloxane-containing contact lens materials differ in the degree to which they deposit lipid, which is dependent upon their chemical composition. Small differences in lipid deposition that occur due to using variations in cleaning regimens were not identifiable through TLC, and required more sophisticated analysis using HPLC. Contact lens material wettability was found to be influenced by in vitro lipid deposition. Specifically, conventional hydrogels and plasma surface-treated silicone-hydrogel materials experienced enhanced wettability with lipid deposition. Reverse-phase HPLC techniques were able to quantify lipid deposits with increased sensitivity and accuracy. From the HPLC studies it was found that contact lens material, concentration of the lipid doping solution, and the composition of the lipid doping solution in in vitro deposition studies influenced the ultimate amount and composition of lipid deposits. In vivo HPLC studies showed that the final lipid deposition pattern was influenced by the interaction between the composition of the tear film and the various silicone hydrogel contact lens materials. In conclusion, HPLC analysis methods were more sensitive and quantitative than TLC. Lipid deposition was ultimately influenced by the concentration and composition of the lipid in the tear film and the contact lens material. Contact lens wettability was influenced by the presence and deposition of lipid onto the contact lens surfaces. Finally, this reverse-phase HPLC lipid analysis protocol was not the most sensitive, robust, or accurate. In the future, other methods of analysis should be explored.
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Harp, Lisa. "Contributions of Silicone Hydrogel Transmissibility and Tear Exchange to Corneal Oxygen Supply". The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275496222.

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Zhao, Yibei. "Phospholipid Transport in Silicon Hydrogel Contact Lenses". BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3083.

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Dry eye syndrome has been associated with the lack of phospholipids in the tear film, leading to disruption of the tear film and subsequent irritation. Characterization of the transport and release of phospholipids from a silicone hydrogel contact lens is required to assess the possible use of these lenses for phospholipid delivery to increase patient comfort. This thesis examines the use of silicone hydrogel contact lenses as phospholipid delivery devices. Contact lenses of silicone hydrogel composition were loaded with varying amounts of radiolabeled 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) from a solution of n-propanol. These lenses were eluted at 35°C into artificial tear fluid (ATF) or ATFcontaining varying amounts of DMPC. The amount of DMPC loaded into a lens is a linear function of the time of exposure to the DMPC/propanol solution. The initial rate of elution into ATF appears to be diffusion controlled for at least 10 hrs and is proportional to the amount of DMPC loaded. The ease of loading and the controllable release of DMPC from silicone hydrogels present the possibility of using such lenses to counter eye discomfort caused by inherently low levels of phospholipid in tears. To reduce manufacturing steps and concern for residual n-propanol in the lens, it is beneficial to incorporate the DMPC into the monomer formulation and then photopolymerize the lens. Results showed that using this process, DMPC can be placed in the lens and then eluted at faster rates than when it was loaded from n-propanol.
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Lewis, Kristen Oblad. "COMPARATIVE LIPIDOMICS OF HYDROGEL CONTACT LENSES IN-VITRO AND IN-VIVO". The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243889772.

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Książki na temat "Silicone hydrogel"

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Symposium A on Defect in Silicon, Hydrogen of the E-MRS Spring Conference (1998 Strasbourg, France). Defects in silicon, hydrogen: Proceedings of Symposium A on Defects in Silicon, Hydrogen of the E-MRS Spring Conference, Strasbourg, France, 16-19 June, 1998. Amsterdam: Elsevier, 1999.

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Manory, R. R. Effect of argon and hydrogen on deposition of silicon from tetrachlorosilane in cold plasmas. [Washington, D.C.]: National Aeronautics and Space Administration, 1986.

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Deixler, Peter. Laplace deep level transient spectroscopy of gold and gold-hydrogen complexes in silicon. Manchester: UMIST, 1997.

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Kan, Philip. The effect of hydrogen on the optical and electrical activity of erbium in silicon. Manchester: UMIST, 1998.

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Fonash, S. J. Quarterly report January 1, 1985 - March 31, 1985 for the contract: Use of low energy hydrogen ion implants in high efficiency crystalline silicon solar cells. University Park, Pa: Pennsylvania State University, 1985.

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International, Conference Renewable Energy (2010 Yokohama-shi Japan). Enerugī gijutsu kenkyū ni okeru kokusai kenkyū kyōryoku no yakuwari: Sansōken Sesshon : Saisei Kanō Enerugī Kokusai Kaigi 2010. [Tsukuba-shi]: Sangyō Gijutsu Sōgō Kenkyūjo, 2010.

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A, Borghesi, i Symposium G on Atomic Scale Characterization and Simulation of Materials and Processes (1995 : Strasbourg, France), red. C,H,N and O in Si and characterization and simulation of materials and processes: Proceedings of Symposium N on Carbon, Hydrogen, Nitrogen and Oxygen in Silicon and other Elemental Semiconductors, and Symposium G on Atomic Scale Characterization and Simulation of Materials and Processes of the 1995 E-MRS Spring Conference, Strasbourg, France, May 22-26, 1995. Amsterdam: Elsevier, 1996.

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Canada, Atomic Energy of. Laser plasma generation of hydrogen-free diamond-like carbon thin films on ZR-2.5Nb CANDU pressure tube materials and silicon wafers with a pulsed high-power CO 2 laser. Chalk River, Ont: Chalk River Nuclear Laboratories, 1995.

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Posterior capsular opacification with hydrogel, polymethylmethacrylate and silicone intraocular lenses:two year results of a randomized prospective trial. Elsevier Science, 2000.

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J, Eckel Andrew, i United States. National Aeronautics and Space Administration., red. Hydrogen-silicon carbide interactions. [Washington, DC]: National Aeronautics and Space Administration, 1990.

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Części książek na temat "Silicone hydrogel"

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Zhou, Bo, Lei Li i Nicholas Randall. "The Surface Tribological and Mechanical Behaviors of Silicone-Based Hydrogel Materials". W Mechanics of Biological Systems and Materials, Volume 5, 149–53. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4427-5_21.

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Craig, Jennifer P., Trevor Sherwin, Christina N. Grupcheva i Charles N. J. McGhee. "An Evaluation of Mucin Balls Associated with High-Dk Silicone-Hydrogel Contact Lens Wear". W Advances in Experimental Medicine and Biology, 917–23. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0717-8_128.

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Diamanti, Steve. "CHAPTER 12. Silicone Hydrogel Soft Contact Lenses: An Industrial Application of Amphiphilic Polymer Co-networks". W Polymer Chemistry Series, 263–76. Cambridge: Royal Society of Chemistry, 2020. http://dx.doi.org/10.1039/9781788015769-00263.

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Ammerlaan, C. A. J. "Hydrogen". W Silicon, 261–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09897-4_14.

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Deák, P., A. Gali i B. Aradi. "Hydrogen in SiC". W Silicon Carbide, 57–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18870-1_3.

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Perrot, Pierre. "Iron – Hydrogen – Silicon". W Iron Systems, Part 4, 103–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-78644-3_10.

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Eigen, Peter, Hannelore Keller-Rudek, Wolfgang Kurtz, Peter Merlet, Hans Schäfer i Friedrich Schröder. "The System Silicon-Nitrogen-Hydrogen". W Si Silicon, 64–144. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-662-06997-4_3.

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Eigen, Peter, Hannelore Keller-Rudek, Wolfgang Kurtz, Peter Merlet, Hans Schäfer i Friedrich Schröder. "N-Substituted Silicon-Nitrogen-(Hydrogen) Compounds". W Si Silicon, 145–351. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-662-06997-4_4.

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Zhang, Rui-Qin, i Yanoar Pribadi Sarwono. "Hydrogen-terminated silicon quantum dots". W Silicon Nanomaterials Sourcebook, 413–32. Boca Raton, FL: CRC Press, Taylor & Francis Group, [2017] | Series: Series in materials science and engineering: CRC Press, 2017. http://dx.doi.org/10.4324/9781315153544-20.

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Jones, B. L. "Hydrogen Distribution in Amorphous Silicon and Silicon Based Alloys". W Hydrogen in Disordered and Amorphous Solids, 51–60. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4899-2025-6_6.

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Streszczenia konferencji na temat "Silicone hydrogel"

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Ionescu, Ana M., Andrea Talaveron López, Juan C. C. Cardona, Sara López Sierra, Ana Belen Rodríguez-Águila, Javier Ruiz-López, María M. M. Pérez i Razvan Ghinea. "Evaluation of the optical properties of two different types of soft contact lenses: hydrogel and silicone-hydrogel". W IV International Conference on Applications of Optics and Photonics, redaktor Manuel Filipe P. Martins Costa. SPIE, 2019. http://dx.doi.org/10.1117/12.2527421.

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Tsai, Hsin-Yi, Chih-Ning Hsu, Yu-Hsuan Lin, Kuo-Cheng Huang i Patrick Joi-Tsang Shum. "Fast Photoelectric Estimation of Oxygen Transmissibility of Silicone Hydrogel Contact Lens". W 6th International Conference on Photonics, Optics and Laser Technology. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0006619702050212.

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Wei, Hua, Dengteng Ge, Zeng Fan, Chang Liu, Xiaodong He i Yao Li. "Insertion of intelligent hydrogel into silicone resin for thermal control applications". W Second International Conference on Smart Materials and Nanotechnology in Engineering, redaktorzy Jinsong Leng, Anand K. Asundi i Wolfgang Ecke. SPIE, 2009. http://dx.doi.org/10.1117/12.841914.

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Giraldez, M. J., C. Garcia-Resua, M. Lira, C. Sánchez-Sellero i E. Yebra-Pimentel. "Silicone hydrogel contact lens surface analysis by atomic force microscopy: shape parameters". W International Conference on Applications of Optics and Photonics, redaktor Manuel F. Costa. SPIE, 2011. http://dx.doi.org/10.1117/12.891953.

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Taranejoo, Shahrouz. "A polymeric silicone hydrogel with adjustable characteristics for laser-assisted tissue capturing (Conference Presentation)". W Optical Interactions with Tissue and Cells XXX, redaktorzy Hope T. Beier i Bennett L. Ibey. SPIE, 2019. http://dx.doi.org/10.1117/12.2508823.

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Tavakoli, Mahmoud, Joao Guilherme Santos, Joao Luis Lourenco i Anibal T. de Almeida. "Hydrogel-silicone conjunction as epidermal and dermal layers of bio-inspired soft finger skin". W 2017 IEEE 5th Portuguese Meeting on Bioengineering (ENBENG). IEEE, 2017. http://dx.doi.org/10.1109/enbeng.2017.7889471.

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Fuentes, R., E. Fernández, I. Pascual i C. García. "UV-visible transmittance of silicone-hydrogel contact lenses measured with a fiber optic spectrometer". W 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, redaktor Manuel Filipe P. C. Martins Costa. SPIE, 2013. http://dx.doi.org/10.1117/12.2025710.

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Kosukegawa, Hiroyuki, Shuya Shida, Yoko Hashida i Makoto Ohta. "Mechanical Properties of Tube-Shaped Poly (Vinyl Alcohol) Hydrogel Blood Vessel Biomodel". W ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30892.

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Biomodels, which mimic the shape and motion of blood vessels, have been developed for clinical training in endovascular intervention and for the technical development of interventional devices such as stents. The present authors have developed a biomodel made of poly (vinyl alcohol) hydrogel (PVA-H), which has good transparency, low surface friction, and dynamic viscoelasticity similar to that of arteries. However, evaluation of its behavior as an arterial biomodel has not been carried out. In order to develop a PVA-H biomodel which can accurately mimic the motion of blood vessels, it is necessary to measure and match its mechanical properties in a tube shape mimicking blood vessels. In this study, tube-shaped PVA-H biomodels were prepared, and their mechanical properties were evaluated as to pulse wave velocity (PWV), compliance, and transfer function. PWV was calculated with Young’s modulus and dimensions of the biomodels. A tube-shaped PVA-H model and a model made of commercial silicone were set in a pulsatile flow path apparatus filled pure water (23°C). Sinusoidal pulsatile waves of various frequencies generated by a screw pump were released into flow path. The flow rate, the inner pressure, and the diameter of the biomodels were measured. The compliance of a biomodel was calculated with changing pressures and diameters. The transfer function was obtained as the ratio of the amplitude of the pressure in front of a biomodel and that behind it. The two kinds of biomodels studied showed PWV similar to that of real arteries: PVA-H shows lower PWV which younger arteries tend to show, while silicone shows higher PWV, similar to the case of aged arteries. In compliance, PVA-H shows a value similar to that of arteries in the lower pressure range, whereas silicone shows a value similar to that of arteries at higher pressure. A difference of transfer function in relation to the pulsatile frequencies was observed. This phenomenon is similar to that of real blood vessels and explainable in terms of the theory of the forced vibration in single-degree-of-freedom systems with attenuation. The transfer function is affected by mechanical properties of the wall, and the difference between biomodels is due to the viscoelasticity of the biomodels. With PVA-H, these parameters can be gradually changed by adjusting factors such as concentration. These findings indicate that PVA-H would be useful for the development of biomodels.
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Wen, Jianxin, Ziheng Song, Xiuyong Chen i Hua Li. "Fabrication of Porous Aluminum Coating by Cored Wire Arc Spray for Anchoring Antifouling Hydrogel Layer". W ITSC2021, redaktorzy F. Azarmi, X. Chen, J. Cizek, C. Cojocaru, B. Jodoin, H. Koivuluoto, Y. C. Lau i in. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.itsc2021p0454.

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Abstract Biofouling has been persisting as a worldwide problem due to the difficulties in finding efficient environment-friendly antifouling coatings for long-term applications. Developing novel coatings with desired antifouling properties has been one of the research goals for surface coating community. Recently hydrogel coating was proposed to serve as antifouling layer, for it offers the advantages of the ease of incorporating green biocides, and resisting attachment of microorganisms by its soft surface. Yet poor adhesion of the hydrogel on steel surfaces is a big concern. In this study, porous matrix aluminum coatings were fabricated by cored wire arc spray, and the sizes of the pores in the aluminum (Al) coatings were controlled by altering the size of the cored powder of sodium chloride. Silicone hydrogel was further deposited on the porous coating. The hydrogel penetrated into the open pores of the porous Al coatings, and the porous Al structure significantly enhanced the adhesion of the hydrogel. In addition, hydrogel coating exhibited very encouraging antifouling properties.
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Rahayu, Tri, Adisti, Weni Puspitasari i Umar Mardianto. "Comparison of Tear Interleukin-6 level, Conjunctival Inflammation, and Tear Film Function in Daily Conventional Hydrogel and Extended Silicone Hydrogel Contact Lens Wear". W 1’s t Jenderal Soedirman International Medical Conference (JIMC) in conjunction with the Annual Scientific Meeting (Temilnas) Consortium of Biomedical Science Indonesia (KIBI ). SCITEPRESS - Science and Technology Publications, 2020. http://dx.doi.org/10.5220/0010489401550163.

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Raporty organizacyjne na temat "Silicone hydrogel"

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Schulberg, M. T., M. D. Allendorf i D. A. Outka. The adsorption of hydrogen chloride on polycrystalline {beta}-silicon carbide. Office of Scientific and Technical Information (OSTI), czerwiec 1995. http://dx.doi.org/10.2172/10162437.

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Hochbauer, Tobias. On the Mechanisms of Hydrogen Implantation Induced Silicon Surface Layer Cleavage. Office of Scientific and Technical Information (OSTI), listopad 2001. http://dx.doi.org/10.2172/806822.

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Hochbauer, Tobias Franz. On the Mechanisms of Hydrogen Implantation Induced Silicon Surface Layer Cleavage. Office of Scientific and Technical Information (OSTI), sierpień 2002. http://dx.doi.org/10.2172/801383.

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Epstein, S., i E. Stolper. Infrared spectroscopy and hydrogen isotope geochemistry of hydrous silicate glasses. Office of Scientific and Technical Information (OSTI), styczeń 1992. http://dx.doi.org/10.2172/5676215.

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Yates, Jr, Cheng J. T., Gao C. C., Colaianni Q., Choyke M. L. i W. J. Atomic Hydrogen - A Reagent for the Extraction of Chemical Species from Silicon Surfaces. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 1992. http://dx.doi.org/10.21236/ada252804.

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Epstein, S., i E. Stolper. Infrared spectroscopy and hydrogen isotope geochemistry of hydrous silicate glasses. Progress report. Office of Scientific and Technical Information (OSTI), marzec 1992. http://dx.doi.org/10.2172/10125268.

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Smyth, J. R. Crystal chemistry of hydroxyl and water in silicate minerals. Final technical report. Office of Scientific and Technical Information (OSTI), czerwiec 1998. http://dx.doi.org/10.2172/656519.

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Estreicher, S. K. Research in Hydrogen Passivation of Defects and Impurities in Silicon: Final Report, 10 February 2000--10 March 2003. Office of Scientific and Technical Information (OSTI), wrzesień 2003. http://dx.doi.org/10.2172/15004721.

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Ashok, S. Research in Hydrogen Passivation of Defects and Impurities in Silicon: Final Report, 2 May 2000-2 July 2003. Office of Scientific and Technical Information (OSTI), grudzień 2004. http://dx.doi.org/10.2172/15011711.

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Ashok, S. Research in Hydrogen Passivation of Defects and Impurities in Silicon: Final Subcontract Report, 2 May 2000--2 July 2003. Office of Scientific and Technical Information (OSTI), maj 2004. http://dx.doi.org/10.2172/15007607.

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