Relevant bibliographies by topics / Stimulus responsive hydrogel

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Stimulus responsive hydrogel'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "Stimulus responsive hydrogel"

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Lin, Deqing, Lei Lei, Shuai Shi, and Xingyi Li. "Stimulus‐Responsive Hydrogel for Ophthalmic Drug Delivery." Macromolecular Bioscience 19, no. 6 (April 26, 2019): 1900001. http://dx.doi.org/10.1002/mabi.201900001.

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SUZUKI, Daisuke. "Preparation of Anisotropic Stimulus-Responsive Hydrogel Microspheres." Hosokawa Powder Technology Foundation ANNUAL REPORT 26 (2018): 85–88. http://dx.doi.org/10.14356/hptf.16112.

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Biswas, Subharanjan, Lakshmi Priya Datta, and Soumyajit Roy. "A Stimuli-Responsive Supramolecular Hydrogel for Controlled Release of Drug." Journal of Molecular and Engineering Materials 05, no. 03 (September 2017): 1750011. http://dx.doi.org/10.1142/s2251237317500113.

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An inexpensive, facile, and environmentally benign method has been developed for the preparation of stimuli-responsive and self-healing polyacrylic acid–chitosan-based supramolecular hydrogels. Guanidine hydrochloride is used as the supramolecular crosslinker to form an interconnected network with polyacrylic acid–chitosan complex. Because of the dynamic equilibrium between the hydrogen-bonding sites of the components, the hydrogels were found to be self-healable and sensitive to biochemical-stimulus, such as pH. Controlled loading of drug like doxorubicin and its significant anticancer activity of such hydrogels is worth mentioning.
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Jaggers, Ross W., and Stefan A. F. Bon. "Independent responsive behaviour and communication in hydrogel objects." Materials Horizons 4, no. 3 (2017): 402–7. http://dx.doi.org/10.1039/c7mh00033b.

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We show the fabrication of autonomous soft hydrogel alginate-based objects, namely fibres and beads. They have an individually programmed time delay in their response to a shared environmental stimulus and the ability to communicate when in close proximity to one another.
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Zhao, Haifeng, Heng An, Baozhong Xi, Yan Yang, Jianglei Qin, Yong Wang, Yingna He, and Xinguo Wang. "Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response." Polymers 11, no. 3 (March 13, 2019): 490. http://dx.doi.org/10.3390/polym11030490.

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Self-healing hydrogels have drawngreat attention in the past decade since the self-healing property is one of the characteristics of living creatures. In this study, poly(acrylamide-stat-diacetone acrylamide) P(AM-stat-DAA) with a pendant ketone group was synthesized from easy accessible monomers, and thermo-responsive self-healing hydrogels were prepared through a series of diacylhydrazide compounds cross-linking without any additional stimulus. Although the copolymers do not show thermo-response, the hydrogels became thermo-responsive andboth the lower critical solution temperature (LCST) and upper critical solution temperature (UCST) varied with the composition of the copolymer and structure of cross-linkers. With a dynamic covalent bond connection, the hydrogel showed gel-sol-gel transition triggered by acidity, redox, and ketone to acylhydrazide group ratios. This is another interesting cross-linking induced thermo-responsive (CIT) hydrogel with different properties compared to PNIPAM-based thermo-responsive hydrogels. The self-healing hydrogel with CIT properties could have great potential for application in areas related to bioscience, life simulation, and temperature switching.
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Shi, Xiangning, Yudong Zheng, Guojie Wang, Qinghua Lin, and Jinsheng Fan. "pH- and electro-response characteristics of bacterial cellulose nanofiber/sodium alginate hybrid hydrogels for dual controlled drug delivery." RSC Adv. 4, no. 87 (2014): 47056–65. http://dx.doi.org/10.1039/c4ra09640a.

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An ionic crosslinking nanocellulose/sodium alginate (BC/SA) hybrid hydrogel was prepared as a dual-stimuli responsive release system. The drug release rate of BC/SA hybrid hydrogels in vitro not only depend on pH value but also depend on the presence of electric stimulus.
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Xiong, Yuan, Kun Yan, William E. Bentley, Hongbing Deng, Yumin Du, Gregory F. Payne, and Xiao-Wen Shi. "Compartmentalized Multilayer Hydrogel Formation Using a Stimulus-Responsive Self-Assembling Polysaccharide." ACS Applied Materials & Interfaces 6, no. 4 (February 7, 2014): 2948–57. http://dx.doi.org/10.1021/am405544r.

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Goessl, Andreas, Nicola Tirelli, and Jeffrey A. Hubbell. "A hydrogel system for stimulus-responsive, oxygen-sensitive in situ gelation." Journal of Biomaterials Science, Polymer Edition 15, no. 7 (January 2004): 895–904. http://dx.doi.org/10.1163/1568562041271039.

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Geraths, Christian, Laura Eichstädter, Raphael J. Gübeli, Erik H. Christen, Christian Friedrich, and Wilfried Weber. "Synthesis and characterization of a stimulus-responsive l-ornithine-degrading hydrogel." Journal of Controlled Release 165, no. 1 (January 2013): 38–43. http://dx.doi.org/10.1016/j.jconrel.2012.10.022.

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Guo, J., H. Sun, W. Lei, Y. Tang, S. Hong, H. Yang, F. R. Tay, and C. Huang. "MMP-8-Responsive Polyethylene Glycol Hydrogel for Intraoral Drug Delivery." Journal of Dental Research 98, no. 5 (March 15, 2019): 564–71. http://dx.doi.org/10.1177/0022034519831931.

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Currently available drug delivery systems for oral diseases suffer from short retention time and poor local concentrations at the target site. A biodegradable stimulus-responsive hydrogel was synthesized in the present study to evaluate its application as an environmentally sensitive carrier for on-demand intraoral drug delivery. The hydrogel was synthesized from diacrylate-containing polyethylene glycol–based scaffolds and a cysteine-terminated peptide crosslinker (CGPQG↓IWGQC) via a Michael-type addition reaction. Because CGPQG↓IWGQC can be cleaved by matrix metalloproteinase 8 (MMP-8), minocycline hydrochloride, bovine serum albumin, or an antibacterial peptide (KSL) was incorporated into the scaffolds to evaluate the MMP-8-responsive release behavior of the on-demand drug delivery system. Hydrogel characterization and gelation kinetics were examined with gel time, Fourier-transform infrared spectroscopy, scanning electron microscopy, and measurements of rheologic parameters. Degradation behavior and MMP-8-responsive drug release were performed by high-performance liquid chromatography and protein-specific assay. Biocompatibility evaluation indicated that the hydrogels were noncytotoxic. Antibacterial testing demonstrated that the released drugs were able to maintain bioactivity. Taken together, these results suggest that the MMP-8-sensitive hydrogel is a promising candidate for on-demand intraoral localized drug delivery. Because MMP-8 is one of the most important biomarkers for periodontitis, the MMP-8-responsive hydrogel has potential to be used for in situ adaptive degradation in response to chronic periodontitis and peri-implantitis. This notion has to be tested in animal models of periodontal disease.
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Dissertations / Theses on the topic "Stimulus responsive hydrogel"

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Salehpour, Somaieh. "Synthesis of Stimuli-responsive Hydrogels from Glycerol." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/20584.

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Due to an increased environmental awareness and thus, concerns over the use of fossil-based monomer for polymer production, there is an ongoing effort to find alternatives to non-renewable traditional monomers. This has ushered in the rapid growth in the development of bio-based materials such as green monomers and biodegradable polymers from vegetable and animal resources. Glycerol, as a renewable bio-based monomer, is an interesting candidate for sustainable polymer production. Glycerol is a renewable material that is a by-product of the transesterification of vegetable oils to biodiesel. Utilization of the excess glycerol derived from the growing biodiesel industry is important to oleochemical industries. The main objective of this thesis was to produce high molecular weight polyglycerol from glycerol and synthesize stimuli-responsive polyglycerol hydrogels. The work began with an investigation of the step-growth polymerization of glycerol to relatively high molecular weight polyglycerol using several catalysts. The catalytic reaction mechanisms were compared and the polymer products were fully analyzed. High molecular weight partially branched polyglycerol with multimodal molecular weight distributions was obtained. The polymerization of glycerol proceeded fastest with sulphuric acid as catalyst as indicated by the highest observed conversion of monomer along with the highest molecular weights. Theoretical models were used to predict the gel point and to calculate monomer functionality. High molecular weight polyglycerol was used to synthesize novel stimuli-responsive hydrogels. Real-time monitoring of step-growth polymerization of glycerol was investigated using in-line and off-line Attenuated Total Reflectance/Fourier Transform infrared (ATR-FTIR) technique.
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Kim, Jongseong. "Stimuli-Responsive Hydrogel Microlenses." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14496.

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This dissertation is aimed towards using stimuli-responsive pNIPAm-co-AAc microgels synthesized via free-radical precipitation polymerization to prepare stimuli-responsive hydrogel microlenses. Chapter 1 gives a detailed background of hydrogels, and their applications using responsive hydrogels. Chapter 2 describes the use of colloidal hydrogel microparticles as microlens elements and the fabrication method to form the hydrogel microlens arrays via Coulombic interactions. Chapter 3 shows the demonstration of tunable microlenses prepared by the method used in Chapter 2. In this chapter the microlenses are subjected to various pH and temperature in aqueous solutions. Chapter 4 describes that the microlens arrays constructed on Au nanoparticle-functionalized glass substrates by self-assembly display dramatic changes in lensing power in response to an impingent frequency-doubled Nd:YAG laser. The microlens photoswitching is highly reversible, with sub-millisecond lens switching times. Chapter 5 describes the development of bioresponsive hydrogel microlenses as a new protein detection technology. The microlens method is shown to be very specific for the target protein, with no detectable interference from nonspecific protein binding. Chapter 6 describes the use of bioresponsive hydrogel microlenses as a label-free biosensing scaffolding. These microstructures simultaneously act as the biosensors scaffolding/immobilization architecture, transducer, amplifier, and also allow for broad tunability of the analyte concentration to which the microlens is sensitive.
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Kulawardana, Erandimala Udamini. "Stimuli-Responsive Polymers." Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1280669888.

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Binti, Adrus Nadia [Verfasser], Mathias [Akademischer Betreuer] Ulbricht, and Christian [Akademischer Betreuer] Mayer. "Stimuli-Responsive Hydrogels and Hydrogel Pore-Filled Composite Membranes / Nadia Adrus. Gutachter: Christian Mayer. Betreuer: Mathias Ulbricht." Duisburg, 2012. http://d-nb.info/1021899720/34.

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Sterner, Olof. "Swelling and protein adsorption characteristics of stimuli-responsive hydrogel gradients." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58586.

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In this work, a gradient of interpenetrating polymer networks, consisting of anionic

and cationic polymers, has been investigated with respect to protein resistant

properties and swelling characteristics at different pH and ionic strength

conditions.

 

The swelling and protein adsorption have been studied using in situ spectroscopic

ellipsometry(SE) and imaging surface plasmon resonance(iSPR) respectively.

It has been shown that, by altering the buffer pH, the region of lowest

protein adsorption on the surface could be moved laterally. The swelling has

similarly been shown to respond to both changes in pH and ionic strength. Additionally,

the arise of surface charge and the polymer swelling in solution, both a

consequence of the ionisation of fixed charges on the polymer, have been indicated

to occur at different buffer pH.

 

The studied polymer systems show promising properties for future applications

in, for example, the biosensor area, where the surface chemistry can be

tailor-made to work optimally in a given environment.

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Gicquel, Erwan. "Development of stimuli-responsive cellulose nanocrystals hydrogels for smart applications." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI105/document.

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L’originalité de ce projet consiste au développement et à l’étude de nouvelles structures hybrides à base de nanocelluloses et de polymères stimulables. En particulier, c’est le design d’hydrogels aux propriétés thermosensibles qui est visé. Les nanocelluloses - nanoparticules issues de la cellulose - sont de deux types : les nanocristaux de cellulose (CNCs) et les nanofibrilles de cellulose (CNFs) et possèdent des propriétés bien particulières. Cette étude s’est concentrée sur l’élaboration d’hydrogels de CNCs. Plusieurs polymères thermosensibles ont été utilisés pour leur biocompatibilité et leur température de solution critique (LCST) aux abords de la température du corps humain. Ce travail a consisté en (i) la préparation des systèmes sur les principes de la chimie verte, (ii) l’étude rhéologique de ces gels thermosensibles et (iii) l’élaboration d’applications à forte valeur ajoutée pour ces biomatériaux uniques. A travers l’utilisation de grands équipements (SANS, SAXS), les interactions physico-chimiques CNCs/polymères ont été étudiées. L’utilisation de block copolymères a permis l’obtention de suspension de CNCs aux propriétés rhéologiques spécifiques : de liquide a température ambiante à gel viscoélastique à température du corps. D’un point vue applicatif, les hydrogels ainsi réalisés ont permis le déploiement de systèmes injectables pour le biomédical ainsi que des surfaces thermosensibles.Mots clés : nanocristaux de cellulose, hydrogel, thermosensible, stimulable
This project consists to develop and study new hybrid structures based on nanocelluloses and stimuli-responsive polymers, in particular, thermo-responsive polymers. Nanocelluloses - nanoparticles extracted from cellulose - exist in two forms: cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs). This study focused on the design of CNCs hydrogels with stimuli-responsive polymers. Several thermo-responsive polymers have been used for their biocompatibility and lower critical solution temperature (LCST) close to body temperature. This work consisted of (i) preparation of systems using the principles of green chemistry, (ii) the rheological study of these thermo-sensitive hydrogels, and (iii) the development of smart applications for these unique biomaterials. Through the use of state of the art technologies (SANS, SAXS), physicochemical interactions between the polymers and CNCs have been studied. The use of block copolymers made it possible to create CNCs-based hydrogels with specific rheological properties: liquid at ambient temperature to viscoelastic gel at body temperature. These hydrogels can be used in the creation of injectable systems for biomedical applications, as well as thermosensitive surfaces.Key-words: Cellulose nanocrystals, hydrogel, thermo-responsive, stimuli-responsive
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Sato, Jun. "Transient Rheology of Stimuli Responsive Hydrogels: Integrating Microrheology and Microfluidics." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-10272006-133420/.

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Thesis (Ph. D.)--Chemical and Biomolecular Engineering, Georgia Institute of Technology, 2007.
Andreas S. Bommarius, Committee Member ; L. Andrew Lyon, Committee Member ; J. Carson Meredith, Committee Member ; William J. Koros, Committee Member ; Victor Breedveld, Committee Chair.
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Matsumoto, Shinji. "Novel Stimuli-Responsive Supramolecular Hydrogels toward Sophisticated Nano-Micro Biomaterials." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/57282.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第13850号
工博第2954号
新制||工||1436(附属図書館)
26066
UT51-2008-C766
京都大学大学院工学研究科合成・生物化学専攻
(主査)教授 濵地 格, 教授 青山 安宏, 教授 木村 俊作
学位規則第4条第1項該当
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Tanaka, Wataru. "Development of stimuli-responsive supramolecular hydrogels relying on self-sorting." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263692.

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Trotter, Johann Louise. "Development of stimuli-responsive hydrogels to combat infection of biomaterials." Thesis, Queen's University Belfast, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728682.

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The development of medical device-associated infections is an increasing burden on modern healthcare. Currently there are no methods fully effective at preventing or eradicating these infections. The aim of this thesis was to develop stimuli-responsive hydrogels as new alternative methods to try and combat such infections, with particular focus placed on catheter-associated urinary tract infections (CAUTIs). Urease-producing bacteria, such as Proteus mirabilis, are prevalent organisms in CAUTIs and cause an increase in pH at the catheter surface. This change in pH was exploited in this thesis wherein a pH- triggered system has been developed and characterised, comprised of a surfactant tethered to a polymeric backbone. An increase in pH was shown to cleave these bonds and accelerate the release of surfactant with 5 times more surfactant released at pH 10 than pH 7 after 28 days. Materials were also shown to demonstrate significant reductions in antimicrobial adherence when challenged with Proteus mirabilis and Staphylococcus aureus. A low-friction coating with an improved dry-out time for intermittent catheters has also been characterised and the effect of retraction speed during the dip coating process on a number of different parameters has been assessed. The highly effective chlorhexidine diacetate has also been incorporated into the coating as a means of enhancing antimicrobial efficacy with up to 5 log reductions in bacterial adherence observed. Lastly, a photolabile crosslinker was developed and incorporated into hydrogels to produce a photoresponsive material. Irradiation of the materials was shown to cleave the crosslinker, increasing porosity and subsequently swelling and drug release. This thesis therefore provides a range of novel materials that have been shown to display antimicrobial or anti-adherent properties and therefore have demonstrated a potential applicability to prevent medical device infections.
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Books on the topic "Stimulus responsive hydrogel"

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Radiation Synthesis of Stimuli-Responsive Membranes, Hydrogels and Adsorbents for Separation Purposes: Final Report of a Coordinated Research Project (IAEA Tecdoc Series). International Atomic Energy Agency, 2005.

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Book chapters on the topic "Stimulus responsive hydrogel"

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Zhu, Yimei, Hiromi Inada, Achim Hartschuh, Li Shi, Ada Della Pia, Giovanni Costantini, Amadeo L. Vázquez de Parga, et al. "Stimulus-Responsive Polymeric Hydrogels." In Encyclopedia of Nanotechnology, 2514. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-90-481-9751-4_100796.

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Kawamura, Akifumi, and Takashi Miyata. "Biologically Stimuli-Responsive Hydrogels." In Intelligent Stimuli-Responsive Materials, 335–62. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118680469.ch10.

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Asoh, Taka-Aki, Masatoshi Kato, Yasuyuki Tsuboi, and Akihiko Kikuchi. "Stimuli-Responsive Adhesion for 3D Fabrication of Hydrogels." In Stimuli-Responsive Interfaces, 255–67. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2463-4_14.

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Miao, Lei, Min Zhang, Yuanyuan Tu, Shudong Lin, and Jiwen Hu. "Stimuli-Responsive Cellulose-Based Hydrogels." In Polymers and Polymeric Composites: A Reference Series, 269–308. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-77830-3_12.

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Miao, Lei, Min Zhang, Yuanyuan Tu, Shudong Lin, and Jiwen Hu. "Stimuli-Responsive Cellulose Based Hydrogels." In Polymers and Polymeric Composites: A Reference Series, 1–40. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76573-0_12-1.

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Sepulveda, Anderson Ferreira, Roger Borges, Juliana Marchi, and Daniele Ribeiro de Araujo. "Biomedical Applications of Stimuli-Responsive Hydrogels." In Nanotechnology in the Life Sciences, 1–20. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39246-8_1.

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Li, Hua. "Multi-Effect-Coupling pH-Electric-Stimuli (MECpHe) Model for Smart Hydrogel Responsive to pH-Electric Coupled Stimuli." In Smart Hydrogel Modelling, 173–218. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02368-2_4.

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Oishi, Motoi, and Yukio Nagasaki. "Stimuli-Responsive PEGylated Nanogels for Smart Nanomedicine." In Biomedical Applications of Hydrogels Handbook, 87–105. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-5919-5_5.

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Aydın, Derya, Mohammad Alipour, and Seda Kizilel. "Design of Stimuli-Responsive Drug Delivery Hydrogels." In Functional Hydrogels in Drug Delivery, 1–23. Boca Raton, FL : CRC Press/ Taylor & Francis Group, 2017.: CRC Press, 2017. http://dx.doi.org/10.4324/9781315152271-1.

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Patel, Gayatri C. "Stimuli-Responsive Hydrogels for Parenteral Drug Delivery." In Functional Hydrogels in Drug Delivery, 234–58. Boca Raton, FL : CRC Press/ Taylor & Francis Group, 2017.: CRC Press, 2017. http://dx.doi.org/10.4324/9781315152271-9.

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Conference papers on the topic "Stimulus responsive hydrogel"

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Kishore, P. V. N., M. Sai Shankar, and V. D. R. Pavan. "Carcinogenic Chromium (VI) sensing using fiber Bragg grating based on swelling of stimulus responsive hydrogel." In Frontiers in Optics. Washington, D.C.: OSA, 2017. http://dx.doi.org/10.1364/fio.2017.jw3a.112.

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Naficy, Sina, Geoffrey M. Spinks, and Gordon G. Wallace. "Stimuli-responsive hydrogel actuators (presentation video)." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Yoseph Bar-Cohen. SPIE, 2014. http://dx.doi.org/10.1117/12.2046154.

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LI, HUA, T. Y. NG, and Y. K. YEW. "MODEL DEVELOPMENT AND BEHAVIOR SIMULATION OF pH-STIMULUS-RESPONSIVE HYDROGELS." In Proceedings of the International Conference on Scientific and Engineering Computation (IC-SEC) 2002. PUBLISHED BY IMPERIAL COLLEGE PRESS AND DISTRIBUTED BY WORLD SCIENTIFIC PUBLISHING CO., 2002. http://dx.doi.org/10.1142/9781860949524_0201.

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Yoshida, Koki, Shunsuke Nakajima, Ryuji Kawano, and Hiroaki Onoe. "Stimuli-responsive hydrogel microsprings for multiple and complex actuation." In 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2017. http://dx.doi.org/10.1109/memsys.2017.7863538.

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Tsuchiya, Mio, Yuta Kurashina, and Hiroaki Onoe. "Stimuli-Responsive Structural Color Hydrogel Microbeads for Wearable Biometric Sensors." In 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII). IEEE, 2019. http://dx.doi.org/10.1109/transducers.2019.8808258.

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Kondo, Go, Tatsuya Oda, Atsushi Suzuki, Michio Tokuyama, Irwin Oppenheim, and Hideya Nishiyama. "Water Flow through a Stimuli-Responsive Hydrogel under Mechanical Constraint." In COMPLEX SYSTEMS: 5th International Workshop on Complex Systems. AIP, 2008. http://dx.doi.org/10.1063/1.2897837.

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Mehner, Philipp J., Sebastian Haefner, Markus Franke, Andreas Voigt, Uwe Marschner, and Andreas Richter. "Finite Element Model of a Hydrogel-Based Micro-Valve." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9181.

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Micro-valves play an important role in controlling and operating microfluidic systems. Utilizing stimuli-sensitive hydrogels facilitates the construction of smart micro-valves controlled by temperature, concentration (salt, organic solvent) or pH level. We propose a finite element model which uses the thermal domain as an auxiliary domain for the volume change response of hydrogels. Behaviors like local displacements within the hydrogel are difficult to measure, but can be reproduced with finite elements. For the application of the micro-valve, the hydrogel model is connected to the fluid domain. The hydrogel is placed directly into the fluid flow and opens or closes the flow path. For this, a full iterative cycle with material properties and remeshing in each simulation step is implemented in ANSYS®. This model concept and the results will help to better understand, predict and visualize the behavior of hydrogels and support the development of highly integrated hydrogel-based microfluidic circuits.
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Takeuchi, Nobuki, Shunsuke Nakajima, Ryuji Kawano, Yutaka Hori, and Hiroaki Onoe. "Locally Bendable Stimuli-Responsive Hydrogel Actuator with Axially Patterned Functional Materials." In 2020 IEEE 33rd International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2020. http://dx.doi.org/10.1109/mems46641.2020.9056321.

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Yoshida, Koki, Shunsuke Nakajima, Ryuji Kawano, and Hiroaki Onoe. "Spring-shaped stimuli-responsive hydrogel actuator for magnifying compression and expansion motions." In 2018 IEEE Micro Electro Mechanical Systems (MEMS). IEEE, 2018. http://dx.doi.org/10.1109/memsys.2018.8346619.

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Ueno, Ryohei, Shota Yamawaki, and Hiroaki Onoe. "Stimuli-Responsive Structural-Color Hydrogel Chemical Sensor Microarray with Separated Functional Structures." In 2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers). IEEE, 2021. http://dx.doi.org/10.1109/transducers50396.2021.9495691.

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