Relevant bibliographies by topics / Gels et hydrogels

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Gels et hydrogels'

Author: Grafiati
Published: 23 November 2024
Last updated: 31 July 2025

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Journal articles on the topic "Gels et hydrogels"

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Chen, Miao, Weimin Lin, Le Hong, Ning Ji, and Hang Zhao. "The Development and Lifetime Stability Improvement of Guanosine-Based Supramolecular Hydrogels through Optimized Structure." BioMed Research International 2019 (June 13, 2019): 1–18. http://dx.doi.org/10.1155/2019/6258248.

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Guanosine is an important building block for supramolecular gels owing to the unique self-assembly property that results from the unique hydrogen bond acceptors and donor groups. Guanosine-derived supramolecular hydrogels have promise in the fields of drug delivery, targeted release, tissue engineering applications,etc.However, the property of poor longevity and the need for excess cations hinder the widespread applications of guanosine hydrogels. Although guanosine-derived supramolecular hydrogels have been reviewed previously by Dash et al., the structural framework of this review is differe
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Wang, Zi, Xujun Zheng, Tetsu Ouchi, et al. "Toughening hydrogels through force-triggered chemical reactions that lengthen polymer strands." Science 374, no. 6564 (2021): 193–96. http://dx.doi.org/10.1126/science.abg2689.

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Longer and stronger; stiff but not brittle Hydrogels are highly water-swollen, cross-linked polymers. Although they can be highly deformed, they tend to be weak, and methods to strengthen or toughen them tend to reduce stretchability. Two papers now report strategies to create tough but deformable hydrogels (see the Perspective by Bosnjak and Silberstein). Wang et al . introduced a toughening mechanism by storing releasable extra chain length in the stiff part of a double-network hydrogel. A high applied force triggered the opening of cycling strands that were only activated at high chain exte
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Kim, Junsoo, Guogao Zhang, Meixuanzi Shi, and Zhigang Suo. "Fracture, fatigue, and friction of polymers in which entanglements greatly outnumber cross-links." Science 374, no. 6564 (2021): 212–16. http://dx.doi.org/10.1126/science.abg6320.

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Longer and stronger; stiff but not brittle Hydrogels are highly water-swollen, cross-linked polymers. Although they can be highly deformed, they tend to be weak, and methods to strengthen or toughen them tend to reduce stretchability. Two papers now report strategies to create tough but deformable hydrogels (see the Perspective by Bosnjak and Silberstein). Wang et al . introduced a toughening mechanism by storing releasable extra chain length in the stiff part of a double-network hydrogel. A high applied force triggered the opening of cycling strands that were only activated at high chain exte
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Aldakheel, Fahad M., Dalia Mohsen, Marwa M. El Sayed, Mohammed H. Fagir, and Dalia K. El Dein. "RETRACTED: Aldakheel et al. Employing of Curcumin–Silver Nanoparticle-Incorporated Sodium Alginate-Co-Acacia Gum Film Hydrogels for Wound Dressing. Gels 2023, 9, 780." Gels 10, no. 6 (2024): 383. http://dx.doi.org/10.3390/gels10060383.

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Sheng, Chengju, Xuemei Tan, Qing Huang, Kewen Li, Chao Zhou, and Mingming Guo. "Correction: Sheng et al. Antibacterial and Angiogenic Poly(ionic liquid) Hydrogels. Gels 2022, 8, 476." Gels 9, no. 6 (2023): 472. http://dx.doi.org/10.3390/gels9060472.

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Surowiecka, Agnieszka, Jerzy Strużyna, Aleksandra Winiarska, and Tomasz Korzeniowski. "Correction: Surowiecka et al. Hydrogels in Burn Wound Management—A Review. Gels 2022, 8, 122." Gels 9, no. 1 (2022): 37. http://dx.doi.org/10.3390/gels9010037.

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Jaik, Thorben G., Assegid M. Flatae, Navid Soltani, et al. "Correction: Jaik et al. Photomotion of Hydrogels with Covalently Attached Azo Dye Moieties—Thermoresponsive and Non-Thermoresponsive Gels. Gels 2022, 8, 541." Gels 9, no. 5 (2023): 411. http://dx.doi.org/10.3390/gels9050411.

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Myers, David R., Ashley C. Brown, Yongzhi Qiu, et al. "High-Throughput Nanomechanical Platelet Contraction Measurements Using Patterned Hydrogels." Blood 120, no. 21 (2012): 2172. http://dx.doi.org/10.1182/blood.v120.21.2172.2172.

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Abstract Abstract 2172 Background: Previous studies on clot formation have shown that the mechanical properties of clots have direct effects on hemostasis and thrombosis, and alterations of those clot mechanics are associated with disease(Collet, et al. 2006) (Hvas, et al. 2007). As such, understanding the mechanical properties of clots is vital to understand hemostasis and thrombosis. As platelets drive this contraction phenomenon, single platelet measurements are required to obtain a mechanistic understanding of the retraction process and to identify specific therapeutic targets for disease
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Horkay, Ferenc, and Jack F. Douglas. "Evidence of Many-Body Interactions in the Virial Coefficients of Polyelectrolyte Gels." Gels 8, no. 2 (2022): 96. http://dx.doi.org/10.3390/gels8020096.

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Simulation studies of aqueous polymer solutions, and heuristic arguments by De Gennes for aqueous polyethylene oxide polymer solutions, have suggested that many-body interactions can give rise to the ‘anomalous’ situation in which the second osmotic virial coefficient is positive, while the third virial coefficient is negative. This phenomenon was later confirmed in analytic calculations of the phase behavior and the osmotic pressure of complex fluids exhibiting cooperative self-assembly into extended dynamic polymeric structures by Dudowicz et al. In the present study, we experimentally confi
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Bermudez-Lekerika, Paola, Katherine B. Crump, Karin Wuertz-Kozak, Christine L. Le Maitre, and Benjamin Gantenbein. "Correction: Bermudez-Lekerika et al. Sulfated Hydrogels as Primary Intervertebral Disc Cell Culture Systems. Gels 2024, 10, 330." Gels 10, no. 10 (2024): 612. http://dx.doi.org/10.3390/gels10100612.

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Dissertations / Theses on the topic "Gels et hydrogels"

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Roux, Rémi. "Élaboration d'assemblages colloïdaux à partir de nanoparticules de poly(acide lactique) et de chitosane." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10088/document.

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Les assemblages colloïdaux représentent une nouvelle piste très prometteuse dans le domaine de l'ingénierie tissulaire. Idéalement, ce type d'assemblage permet l'obtention de matériaux injectables et gélifiants sur le site lésionnel, favorisant par la suite le développement de néo-tissus viables. Ce travail porte sur la formation de tels assemblages à base de chitosane et de poly(acide lactique) (PLA). Deux types d'assemblages ont été conçus et étudiés dans ce travail. Dans une première approche, le mélange de particules anioniques de poly (acide lactique) (PLA) avec du chitosane en solution f
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Daou, Dania. "Intégration de moteurs moléculaires photoactivables dans des gels supramoléculaires." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAF021.

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Cette thèse a exploré l'intégration de moteurs moléculaires synthétiques photoactivables dans des réseaux de gels supramoléculaires. L'objectif principal était d'obtenir un mouvement macroscopique réversible en exploitant à la fois la rotation unidirectionnelle des moteurs moléculaires et la nature réversible des interactions supramoléculaires. Des moteurs moléculaires hautement fonctionnalisés ont été synthétisés et intégrés comme unités de réticulation dans des réseaux de gel supramoléculaire de peptides de diphénylalanine et de poly(γ-benzyl-L-glutamate) et d'oligonucléotides d'ADN. L'activ
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Ribeiro, Cédric. "Assemblages (macro) moléculaires à base de complexe intra et/ou intermoléculaire de CBPQT4+, X-." Electronic Thesis or Diss., Centrale Lille Institut, 2023. http://www.theses.fr/2023CLIL0018.

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L’association de la science des polymères et de la chimie supramoléculaire a conduit au développement de matériaux polymères supramoléculaires dotés de propriétés structurelles, mécaniques et fonctionnelles atypiques. Ces matériaux sont d’ores et déjà exploités dans divers domaines d’applications, tels que les matériaux auto réparants,l’ingénieur tissulaire ou encore la libération contrôlée de principes actifs. Ainsi, la chimie supramoléculaire s’est avérée être un outil puissant pour moduler les propriétés des matériaux en contrôlant le caractère dynamique des interactions supramoléculaires v
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Hellio, Serughetti Dominique. "Les gels physiques et chimiques de gelatine : structure et rhéologie." Paris 6, 2004. http://www.theses.fr/2004PA066461.

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Chalal, Mohand. "Structure multi-échelle et propriétés physico-chimiques des gels de polymères thermosensibles." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00680076.

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La "cryopolymérisation" permet d'obtenir des gels de polymère macroporeux ou "cryogels". Cette méthode a été utilisée pour la synthèse d'hydrogels thermosensibles à base de pNIPA. La température critique TC correspondant à la transition de volume a été déterminée par des mesures de taux de gonflement et par DSC. La macroporosité (distribution de la taille des pores et épaisseur des parois) et son évolution en fonction de T ont été étudiées par la microscopie biphotonique donnant des informations à l'échelle du µm à plusieurs dizaines de µm. La diffusion de rayons X (SAXS et WAXS) a été utilisé
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Gasmi, Sarah Nawel. "Action d'une hydrolase dans des hydrogels à base d'alginate et d'alginate fonctionnalisé." Rouen, 2015. http://www.theses.fr/2015ROUES049.

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L'objectif de ce travail a été d'étudier l'activité hydrolytique d'une enzyme, la pullulanase, vis à vis du pullulane dans des hydrogels fonctionnalisés ou non à base d'alginate de calcium. L'alginate a été modifié chimiquement par une polyéther amine de la famille Jeffamine® qui présente un caractère LCST "Low Critical Solubility Temperature". L'enzyme immobilisée à hauteur de 30% dans des billes d'alginate de calcium hydrolyse lentement le pullulane en raison de la pénétration de celui ci dans les billes et libère du maltotriose et ses premiers multiples alors que l'enzyme libre donne un mél
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Miquelard-Garnier, Guillaume. "Synthèse et propriétés mécaniques d'hydrogels polyélectrolytes modifiés par des groupements hydrophobes." Paris 6, 2007. https://pastel.archives-ouvertes.fr/tel-00343871.

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Servant, Nathalie. "Mise au point et propriétés rhéologiques d'un hydrogel mucoadhésif à usage ophtalmique en vue de l'amélioration de la biodisponibilité d'un principe actif hydrosoluble." Montpellier 1, 1996. http://www.theses.fr/1996MON13525.

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Desprez, Valérie. "Caractérisations, applications et modélisation d'électrodes modifiées par des hydrogels : laponite-oligosilsesquioxanes(-enzyme)." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10108.

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Ce memoire est consacre a la caracterisation, aux applications et a la modelisation cinetique d'electrodes modifiees par des hydrogels de laponite expansee par des oligosilsesquioxanes et fonctionnalisee par des especes electrocatalytiques (microparticules de metaux nobles, mediateurs redox, enzymes). Les etudes physico-chimiques et electrochimiques de ce nouveau materiau hybride d'electrode ont mis en evidence l'intercalation des oligosilsesquioxanes et l'existence d'une micro-porosite induite susceptible d'etre conservee en milieu organique. La stabilite des films obtenus ainsi que leur prop
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Gerard, Eric-Jack. "Synthese, caracterisation et comportement de polyurethannes hydrophiles : etude du mecanisme de la polycondensation reticulante." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13192.

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Synthese d'hygrogels, constitues de chaines elastiques de polydioxolanne. Les reticulats sont synthetises en milieu organique par couplages multiples des extremites hydroxylees, du polydioxolanne precurseur avec un compose isocyanate plurifonctionnel. Apres reaction, un echange progressif du solvant organique par l'eau permet d'obtenir les hydrogels
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Conference papers on the topic "Gels et hydrogels"

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Chippada, Uday, Xue Jiang, Michelle Previtera, et al. "Alteration of Fibroblast Cell Behavior due to Contraction of Substrate." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19507.

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Many researchers have utilized hydrogels as substrates for cell attachment. The stiffness of these substrates has been found to influence the cellular behavior such as morphology, proliferation, growth and differentiation. Lo et al. deformed polyacrylamide substrates with a blunted microneedle and observed the movement of NIH 3T3 fibroblasts. In both pulling and pushing, the cells reversed their direction and moved away from the needle. This shows that cellular behavior is also affected by stretching the underlying substrates. In a previous study, Lin et al. have demonstrated the ability to co
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Li, Bojun, and Erdong Yao. "High-Temperature Resistant, Low-Concentration Polyacrylamide Gel System." In 56th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2022. http://dx.doi.org/10.56952/arma-2022-2042.

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ABSTRACT: After tertiary oil recovery in old oilfields, problems such as high-water output and low recovery efficiency have generally appeared, which is urgently need to be solved by water blocking and profile control measures. However, the current water blocking gel has low strength and poor-temperature resistance and cannot meet the site requirements, and the organic concentration of most polyacrylamide hydrogels is 0.6 wt% ~ 3.0 wt%, which further increases the economic cost of oil exploitation. In this work, organic zirconium is used to cross-link anionic polyacrylamide with large molecula
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Horikoshi, Satoshi. "IN-LIQUID PLASMA USING MICROWAVE POWER FOR APPLICATIONS." In Ampere 2019. Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/ampere2019.2019.9815.

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More than 30 years have passed since Clements, et. al. succeeded in generating plasma in liquid (in-Liquid plasma: LP). Meanwhile, then plasma generation experiments using AC and DC power sources have been performed in electrolyte solutions. On the other hand, in 2000, by Nomura, et. al., they succeeded in generating plasma in aqueous solution by using microwave as a power source. When the microwave is used as a power source, there is a problem that the electrode is deteriorated and melted by the heat of plasma, and there is a problem that the device cannot be used continuously. We solved this
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Chippada, Uday, Bernard Yurke, David I. Shreiber, et al. "Force/Torque Field Generation to Obtain Local Properties within Soft Hydrogels." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176081.

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Soft media like hydrogels are used as substrates for cellular engineering of different cell types and the stiffness of these media plays an important role in the cellular behavior like adhesion, proliferation, matrix deposition and differentiation. The global mechanical properties of such substrates were previously calculated using spherical beads embedded in micro-liter samples and then deflecting them by a magnetic manipulator [1]. Knowing the force and the displacement the elastic modulus was evaluated using closed form solutions. However in the context of our studies for biological applica
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Suciu, Claudiu Valentin. "Thermal Effects on Nano-Energy Absorption Systems (Nano-EAS)." In 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2008. http://dx.doi.org/10.1115/micronano2008-70039.

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Development of intelligent and ecological energy absorption systems (EAS) is important to various fields such as automotive (vehicle suspensions, bumpers, engine mounts), construction (protections against seismic and wind-induced vibrations), and defense (parachuted objects, armors). Usual EAS use composites, shape-memory alloys and foams. Recently, liquid adsorption/desorption in/from nanoporous solids was employed to develop high-performance nano-EAS. Energy loss is based on the well-known capillary phenomenon: external work must be done to spread a non-wetting liquid on a solid surface. Nan
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Wunch, Kenneth, and Veronica Silva. "Protecting the Reservoir from Diminishing Productivity Caused by Downhole Biofilm Growth in Shale Plays." In SPE International Conference on Oilfield Chemistry. SPE, 2023. http://dx.doi.org/10.2118/213852-ms.

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Abstract Hydraulic fracturing of shale in unconventional oil & gas recovery is accomplished through the addition of large volumes of water and biodegradable additives to reservoirs, creating environments conducive for microbial contamination. Contamination of reservoirs by sulfate reducing organisms often leads to biogenic souring, the biological production of hydrogen sulfide (H2S), which devalues crude, corrodes metallic assets via microbially influenced corrosion (MIC), and creates dangerous health and safety conditions for field personnel (Ferrar et al. 2021). Often overlooked is the i
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