Academic literature on the topic 'Thermosensitive behaviour'
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Journal articles on the topic "Thermosensitive behaviour":
Xiao, Heng, Otto Bruhns, and Albert Meyers. "Thermoinduced plastic flow and shape memory effects." Theoretical and Applied Mechanics 38, no. 2 (2011): 155–207. http://dx.doi.org/10.2298/tam1102155x.
Sergeeva, Olga, Petr S. Vlasov, Nina S. Domnina, Anna Bogomolova, Petr V. Konarev, Dmitri I. Svergun, Zuzana Walterova, Jiri Horsky, Petr Stepanek, and Sergey K. Filippov. "Novel thermosensitive telechelic PEGs with antioxidant activity: synthesis, molecular properties and conformational behaviour." RSC Adv. 4, no. 79 (2014): 41763–71. http://dx.doi.org/10.1039/c4ra06978a.
Hori, Tetsuro, Toshikazu Kiyohara, Yutaka Oomura, Hitoo Nishino, Shuji Aou, and Ichiro Fujita. "The responses of monkey preoptic thermosensitive neurons during thermoregulatory cooling behaviour." Neuroscience Research Supplements 5 (January 1987): S93. http://dx.doi.org/10.1016/0921-8696(87)90200-3.
Rossi, Barbara, Valentina Venuti, Francesco D'Amico, Alessandro Gessini, Andrea Mele, Carlo Punta, Lucio Melone, et al. "Toward an understanding of the thermosensitive behaviour of pH-responsive hydrogels based on cyclodextrins." Soft Matter 11, no. 29 (2015): 5862–71. http://dx.doi.org/10.1039/c5sm01093d.
Ilic-Stojanovic, Snezana, Ljubisa Nikolic, Vesna Nikolic, Mihajlo Stankovic, Jakov Stamenkovic, Ivana Mladenovic-Ranisavljevic, and Slobodan Petrovic. "Influence of monomer and crosslinker molar ratio on the swelling behaviour of thermosensitive hydrogels." Chemical Industry and Chemical Engineering Quarterly 18, no. 1 (2012): 1–9. http://dx.doi.org/10.2298/ciceq110711040i.
Lamba, Navneet Kumar. "Thermosensitive Response of a Functionally Graded Cylinder with Fractional Order Derivative." International Journal of Applied Mechanics and Engineering 27, no. 1 (March 1, 2022): 107–24. http://dx.doi.org/10.2478/ijame-2022-0008.
Voycheva, Christina, Marta Slavkova, Teodora Popova, Diana Tzankova, Denitsa Stefanova, Virginia Tzankova, Ivelina Ivanova, et al. "Thermosensitive Hydrogel-Functionalized Mesoporous Silica Nanoparticles for Parenteral Application of Chemotherapeutics." Gels 9, no. 9 (September 21, 2023): 769. http://dx.doi.org/10.3390/gels9090769.
Gutierres, A., S. Pascual, L. Fontaine, S. Piogé, and L. Benyahia. "The effect of metal ions on the viscoelastic properties of thermosensitive sol-to-gel reversible metallo-supramolecular hydrogels." Polymer Chemistry 9, no. 18 (2018): 2494–504. http://dx.doi.org/10.1039/c7py02118f.
Geever, Luke M., César M. Mínguez, Declan M. Devine, Michael J. D. Nugent, James E. Kennedy, John G. Lyons, Austin Hanley, Sinead Devery, Paul T. Tomkins, and Clement L. Higginbotham. "The synthesis, swelling behaviour and rheological properties of chemically crosslinked thermosensitive copolymers based on N-isopropylacrylamide." Journal of Materials Science 42, no. 12 (March 8, 2007): 4136–48. http://dx.doi.org/10.1007/s10853-006-0912-z.
Wang, Xiaoyun, and Jing Zhang. "Temperature-sensitive poly(N-isopropylacrylamide) (PNIPAAm) stabilized size controllable synthesis of silver nanoparticles and its improved antimicrobial activity for wound healing and nursing care after femoral fracture during surgery." Materials Express 11, no. 1 (January 1, 2021): 73–84. http://dx.doi.org/10.1166/mex.2021.1878.
Dissertations / Theses on the topic "Thermosensitive behaviour":
Said-mohamed, Cynthia. "Thermosensitive gold nanoparticles : solution optical properties and interfacial behaviour." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00684389.
Said-Mohamed, Cynthia. "Thermosensitive gold nanoparticles : solution optical properties and interfacial behaviour." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA112235/document.
In this thesis, the objective is to control the polymer-grafted gold nanoparticles optical properties (SPR) by tuning the protecting polymer shell structural properties. Gold nanoparticles grafted with thermosensitive polymers with a large range of molecular masses and different degrees of hydrophobicity are synthesized by “grafting-to” technique. SANS is employed to characterize the protecting polymer shell structural properties. The absorption spectra are modeled using the Mie Dipolar theory. It is shown that the gold nanoparticle sensitivity to external solvent is progressively reduced with increasing polymer volume fraction of the nanocomposite until the SPR is frozen by the polymer shell. In this case, the SPR mode becomes insensitive to the dielectric properties of the solvent. SPR is also red-shifted (a color change occurs) by thermally inducing the collapse of the polymer shell. The temperature and the extent of the red-shift are controlled by the graft polymer hydrophobicity and salinity. An important part of this thesis is also dedicated to the polymer-protected gold nanoparticles behaviour at the air-water interface. The Langmuir balance technique is used to build interfacial layers whose interparticle distance is modulated by compression, polymer graft chain length and temperature. The interfacial layer structural properties are determined by studying both the polymer graft layer conformation and the gold core organization with neutron and X-ray reflectivities. These reflectivitity measurements also enable us to evaluate and ameliorate the surface layers stability for a better control of the interparticle distance that is important for optimizing the SPR of the surface layer
Kiran, K. J. "Investigation of phase behaviour of neutral and ionic microgels using scattering, rheology and microscopy techniques." Thesis(Ph.D.), CSIR - National Chemical Laboratory, Pune, 2018. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/4539.
CSIR
AcSIR
Chu, Fangfang. "Dumbbell-shaped colloids." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2014. http://dx.doi.org/10.18452/17062.
In the present work the phase behaviour of hard dumbbells has been explored as a function of aspect ratio (L*, the center to center distance to the diameter of one composed sphere) and volume fractions using thermosensitive dumbbell-shaped microgels as the hard dumbbell model system. A fluid-to-plastic crystal phase transition indicated by Bragg reflections has been observed for L* < 0.4. The experimental phase diagrams at L* ~ 0.24 and L* ~ 0.30 are comparable to the theoretical prediction of the Monte Carlo simulations. Rheological measurements reveal that the hard dumbbells in the biphasic gap show the yielding behaviour with a single yielding event, while two yielding events have been observed for the plastic crystalline phase. The two yielding events, referred to as the double yielding behaviour, are proved to be related to the crystallization of hard dumbbells. The underlying structural evolution has been investigated by rheo-SANS experiments and the scattering data has been interpreted by BD simulations. It is demonstrated that the plastic crystal structure of the hard dumbbells is polycrystalline at rest, which has been induced into the twinned fcc structure at low strain, the partially oriented sliding layers at high strain and the intermediate state at the strain in-between. The shear-induced structural evolution corresponds to the double yielding events of the fully crystallized hard dumbbells. Additionally, we prove that the increase of L* (L* < 0.4) does not change the structural evolution of the sheared hard dumbbells. Only more extensive or longer oscillations are required to form the shear-induced crystal structures due to the slowdown of the dynamics in the vicinity of the glass transition. In a second part, the work of this thesis is extended to hollow systems composed of hollow spheres and hollow Janus dumbbells that can be used as model systems to probe phase behaviour of hollow capsules.
Nouveau, Thibaut. "Nébulisation de nouveaux polyplexes pour le transfert de gènes." Electronic Thesis or Diss., Sorbonne université, 2023. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2023SORUS734.pdf.
Gene therapy is a form of therapy used to treat hereditary or acquired genetic diseases such as cancer or cystic fibrosis. Introducing a polynucleotide into diseased cells, either via the systmeic route or the local route (oral or nasal inhalation), corrects the defects causing the genetic mutations. However, DNA can only be internalized using a vector that protects it and enables it to reach the cell nucleus, where it will be transcribed. Various vectors (viral or synthetic) have been developed, such as PEI-based cationic polymer vectors. However, although effective, these PEI-based vectors are immunogenic at high doses. Functionalizations to reduce this toxicity, such as PEGylation, have been developed, making it possible to reinforce vectors by adding stealthiness to the final polyplexes. However, these strategies have their limitations, necessitating the synthesis of new types of polymer. POxylation represents a good alternative to PEG usage to form new polyplexes by adding a block formed from one or more poly(2-alkyl-2-oxazoline)s. The copolymers are synthesized by selective hydrolysis of a PEtOx-b-PnPrOx-b-PMeOx triblock copolymer using the thermosensitive properties of the hydrophobic blocks and a kosmotropic salt to form core-shell systems enabling hydrolysis of the PMeOx block to PEI. Then, the systems were formulated using a standard formulation and a "micro-extrusion" method. The polyplexes obtained were used in vitro experiments, by deposition or by a nebulization method, ideal for the treatment of pulmonary diseases. Very good transfection results were obtained, depending on various parameters (Mn, PEI, polymer architecture, +/- charge ratio)
Chang, Ya-Ting, and 張雅婷. "Thermosensitive methylcellulose hydrogels:its gelation behavior and biocompatibility with MSCs." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/87200347472776164329.
元智大學
生物科技暨生物資訊研究所
94
The phase transition behaviors and the gelation kinetics of the thermosensitive methylcellulose (MC) solution were studied and the MC gels were tested for the biocompatibility with mesenchymal stem cells (MSCs). The presence of NaCl (0.13 M) decreased the gelation temperature (or cloud point) and increased the rate of the gelation process due to the salting out effect. The gelation temperature decreased and the rate of gelation increased with the increase of MC concentration in the solution due to the chain entanglement effect at higher polymer concentrations. The gelation temperature of the salt-free MC solution approximated to 42 oC and that of the MC solution with 0.13 M NaCl approximated to 40 oC when the polymer concentration was higher than 9 wt%. When MSCs were cultured within the 3D MC gels, it was found that MSCs could aggregate and maintain their viability up to 28 days. The biocompatibility of MC gels with MSCs suggested that MC gels could be considered as an injectable hydrogel for tissue engineering application.
Jiang, Xueguang. "Synthesis and Solution Behavior of Doubly Responsive Hydrophilic Block Copolymers." 2010. http://trace.tennessee.edu/utk_graddiss/809.
Huang, Zun-Huan, and 黃尊煥. "Temperature and size effect for the drug release behavior of thermosensitive hollow carrier." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/62009492036644017275.
國立中興大學
材料科學與工程學系所
98
In this study, the hollow SiO2 particles coated by thermosensitive poly(N–isopropylacrylamide–co–3-trimethoxysilylpropylmethacrylate)(PNIPAM) have been fabricated through Layer-by-layer technique and radical polymerization. The 200nm and 600nm hollow SiO2 particles were first synthesized using 200nm and 600nm polystyrene(PS) particles served as a core and then coated by 13nm SiO2 nanoparticles using Layer-by-layer method. The PS particles were removed by tetrahydrofuran(THF) at 60°C to obtain hollow SiO2 particle. The hollow SiO2 particles were then coated by PNIPAM using radical polymerization to form the thermosensitive and hollow SiO2 particles. The characteristic and drug loading / release behavior of thermosensitive and hollow SiO2 particles were investigated using SEM, TEM, FT-IR, DSC, DLS and XPS. The DSC data indicated the Lower critical solution temperature (LCST) of thermosensitive and hollow SiO2 particles is in the range of 32~34°C, which is close to human temperature. These results reveal that the fabricated particles can be used as drug carrier. The poduced thermosensitive silica hollow sphere were applied to study the effectes of the shell thickness on the release efficiency for (flourescein isothiocyanate,FITC). The shell thickness of thermosensitive silica hollow sphere in 200 nm and 600 nm diameter was 13 nm and 35 nm, respectively; after increasing one SiO2 coating layer, the shell thickness was increased to 26 nm and 52 nm, respectively. The release profiles showed that the drug release decreased with increase of shell thickness. The release amount of FITC from thinner thermosensitive silica hollow spheres in 200 nm diameter is 86% at 25°C and 57% at 40°C, and decreasing to 80% and 25% after one additional layer coating, respectively. The result was also found in thermosensitive silica hollow spheres in 600 nm diameter, showing that the shell thickness is one of the main controlling factors for the system. In addition, the temperature also affect the release rate showed that PNIPAM play an important role in controlling release process.
Hsu, Cheng-Haw, and 許政皓. "Studies on the preparation and swelling behaviors of the cationic thermosensitive hydrogels." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/36372400424398862703.
大同工學院
化學工程學系
85
A series of N-isopropylacrylamide/trimethyl acrylamidopropyle ammonium iodide(NIPAAm/TMAAI),N-isopropylacrylamide/trimethyl methacryloyloxyethyl ammonium iodide(NIPAAm/TMMAI),and N- isopropylacrylamide/3-methyl-1-vinyl--imidazolium iodide(NIPAAm/ MVI) copolymeric gels areprepared from the various molar ratios of NIPAAm, cationic monomer TMAAI,TMMAI,and MVI, and N,N''- methylene bisacrylamide(NMBA)in this article. The influences of the amount of the cationic monomers in the copolymeric gels on the swelling behaviors in water,various saline solutions,and various temperatures areinvestigated. Results show that tha swelling ratios of copolymeric gels are significantly larger than pure NIPAAm gel,and the more the monomer content,the higherthe gel transition temperature. In the saline solution, results show that the swelling ratio of pure NIPAAm gel has not significantly changed withan increase of the salt concentration until the salt concentration is larger than 0.1M. The swelling ratios for the copolymeric gels are decreasedwith increasing of the salt concentration. In various saline solution,results show that the anionic effects are greater than cationic effectsin the presence of common anion,different cations and common cation, different anions for these hydrogels. Finally, we also test the reversibility of the NIPAAm/TMMAI copolymericgels. The deswelling and reswelling kinetics are depended on the temperature which is below or above the gel transition temperature. The gel with little TMMAI content has a good reversibity.
Xu, Zheng-Hao, and 許政皓. "Studies on the preparation and swelling behaviors of the cationic thermosensitive hydrogels." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/00979989564807829057.
Conference papers on the topic "Thermosensitive behaviour":
Qin, Xing, Youzhi Duan, Hui Yue, Shuang Ai, Qian Hou, and Bo Jing. "Mechanical Behavior of Thermosensitive Screen Applied for Wellbore Collapse." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/201581-ms.
Wang, Bo, Robbin Bertucci, Zhenqing Li, Raj Prabhu, Lakiesha Williams, Jianjun Guan, and Jun Liao. "Effect of Thermosensitive Hydrogel Injection on Mechanical Behavior of Porcine Myocardium." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14551.
Ningrum, Eva Oktavia, Agus Purwanto, Hikmatun Ni’mah, Sumarno, Dinny Islamiah Dewitasari, and Eka Octaviyatna Mulyadi. "Ion adsorption and desorption behaviors of thermosensitive NIPAM-co-DMAAPS gel by temperature swing." In INTERNATIONAL SEMINAR ON FUNDAMENTAL AND APPLICATION OF CHEMICAL ENGINEERING 2016 (ISFAChE 2016): Proceedings of the 3rd International Seminar on Fundamental and Application of Chemical Engineering 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4982315.