Academic literature on the topic 'Hydrogel de polysaccharide'

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Journal articles on the topic "Hydrogel de polysaccharide"

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Ye, Jing, Gang Yang, Jing Zhang, et al. "Preparation and characterization of gelatin-polysaccharide composite hydrogels for tissue engineering." PeerJ 9 (March 15, 2021): e11022. http://dx.doi.org/10.7717/peerj.11022.

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Background Tissue engineering, which involves the selection of scaffold materials, presents a new therapeutic strategy for damaged tissues or organs. Scaffold design based on blends of proteins and polysaccharides, as mimicry of the native extracellular matrix, has recently become a valuable strategy for tissue engineering. Objective This study aimed to construct composite hydrogels based on natural polymers for tissue engineering. Methods Composite hydrogels based on blends of gelatin with a polysaccharide component (chitosan or alginate) were produced and subsequently enzyme crosslinked. The
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Choi, Jae Hyuk, Donghee Son, and Mikyung Shin. "Sundew-Inspired Adhesive Hydrogel Threads through Reversible Complexation of Polyphenol and Boronic Acid." Applied Sciences 11, no. 18 (2021): 8591. http://dx.doi.org/10.3390/app11188591.

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Adhesive hydrogels have been utilized as tissue sealants, hemostatic agents, and wound dressings, with the aim of replacing conventional sutures. To prevent immune response and serious inflammation from those hydrogels after sealing, natural biocompatible polysaccharides are widely used as a component of the hydrogels. However, the weak mechanical strength, insufficient adhesiveness, and rapid dissociation of the hydrogels necessitates additional suturing at the wound site. In this study, we report on a solid polysaccharide thread reversibly crosslinked with boronic acid-polyphenol complexatio
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Heidarian, Pejman, Hossein Yousefi, Akif Kaynak, et al. "Dynamic Nanohybrid-Polysaccharide Hydrogels for Soft Wearable Strain Sensing." Sensors 21, no. 11 (2021): 3574. http://dx.doi.org/10.3390/s21113574.

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Electroconductive hydrogels with stimuli-free self-healing and self-recovery (SELF) properties and high mechanical strength for wearable strain sensors is an area of intensive research activity at the moment. Most electroconductive hydrogels, however, consist of static bonds for mechanical strength and dynamic bonds for SELF performance, presenting a challenge to improve both properties into one single hydrogel. An alternative strategy to successfully incorporate both properties into one system is via the use of stiff or rigid, yet dynamic nano-materials. In this work, a nano-hybrid modifier d
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Zhang, Chen, Yanan He, Zhejie Chen, Jinfeng Shi, Yan Qu, and Jinming Zhang. "Effect of Polysaccharides from Bletilla striata on the Healing of Dermal Wounds in Mice." Evidence-Based Complementary and Alternative Medicine 2019 (October 24, 2019): 1–9. http://dx.doi.org/10.1155/2019/9212314.

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Bletilla striata has been largely used in traditional folk medicine in China as a wound healing agent and to treat gastritis and several other health problems. Some studies have shown that plant polysaccharides may have the ability to promote wound healing. The aim of this work was to evaluate the wound healing activity of the polysaccharide extracted from Bletilla striata. Firstly, a Bletilla striata polysaccharide was extracted by water extraction and alcohol precipitation and characterized by Fourier transform infrared spectroscopy. The Bletilla striata polysaccharide was then tested for ce
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McCarthy, Pumtiwitt C., Yongchao Zhang, and Fasil Abebe. "Recent Applications of Dual-Stimuli Responsive Chitosan Hydrogel Nanocomposites as Drug Delivery Tools." Molecules 26, no. 16 (2021): 4735. http://dx.doi.org/10.3390/molecules26164735.

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Polysaccharides are a versatile class of macromolecules that are involved in many biological interactions critical to life. They can be further modified for added functionality. Once derivatized, these polymers can exhibit new chemical properties that can be further optimized for applications in drug delivery, wound healing, sensor development and others. Chitosan, derived from the N-deacetylation of chitin, is one example of a polysaccharide that has been functionalized and used as a major component of polysaccharide biomaterials. In this brief review, we focus on one aspect of chitosan’s uti
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Hu, Hao, Chao Huang, Massimiliano Galluzzi, et al. "Editing the Shape Morphing of Monocomponent Natural Polysaccharide Hydrogel Films." Research 2021 (June 3, 2021): 1–12. http://dx.doi.org/10.34133/2021/9786128.

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Shape-morphing hydrogels can be widely used to develop artificial muscles, reconfigurable biodevices, and soft robotics. However, conventional approaches for developing shape-morphing hydrogels highly rely on composite materials or complex manufacturing techniques, which limit their practical applications. Herein, we develop an unprecedented strategy to edit the shape morphing of monocomponent natural polysaccharide hydrogel films via integrating gradient cross-linking density and geometry effect. Owing to the synergistic effect, the shape morphing of chitosan (CS) hydrogel films with gradient
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Wang, Rong, Xinhua Wan, and Jie Zhang. "Multi-stimuli-responsive induced chirality of polyoxometalates in natural polysaccharide hydrogels." Chemical Communications 55, no. 32 (2019): 4711–14. http://dx.doi.org/10.1039/c9cc01981b.

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Multi-stimuli-responsive induced circular dichroism of polyoxometalates was realized in natural polysaccharide hydrogels. The extrinsic chiral factors rather than the intrinsic chirality of the polyoxometalates were dominant in κ-carrageenan hydrogel hybrids.
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Chen, Nifeng, Huina Zhang, Yinmao Dong, and Li Li. "Polysaccharide Hydrogel and its Application Analysis." Asian Journal of Beauty and Cosmetology 18, no. 1 (2020): 129–35. http://dx.doi.org/10.20402/ajbc.2020.0004.

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SMEDS, KIMBERLY A., ANNE PFISTER-SERRES, DIANE L. HATCHELL, and MARK W. GRINSTAFF. "SYNTHESIS OF A NOVEL POLYSACCHARIDE HYDROGEL." Journal of Macromolecular Science, Part A 36, no. 7-8 (1999): 981–89. http://dx.doi.org/10.1080/10601329908951194.

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SMEDS, KIMBERLY, ANNE PFISTER-SERRES, DIANE HATCHELL, and MARK GRINSTAFF. "SYNTHESIS OF A NOVEL POLYSACCHARIDE HYDROGEL." Journal of Macromolecular Science, Part A- Pure and Applied Chemistry 36, no. 7&8 (1999): 981–89. http://dx.doi.org/10.1081/ma-100101577.

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Dissertations / Theses on the topic "Hydrogel de polysaccharide"

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Poirot, Robin. "Design of polysaccharide-based nanogels for the controlled release of insulin." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAV089.

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La prise en charge du diabète de type I se fait à l’heure actuelle par des injections pluriquotidiennes d’insuline ou par l’utilisation d’une pompe à insuline qui va mimer l’activité pancréatique. Dans ce contexte, les nanogels sensibles au glucose représentent des candidats à fort potentiel pour une délivrance contrôlée de l’insuline.La majorité des matériaux développés à ce jour ne présentent pas d’études en vue d’application in vivo et ce, pour diverses raisons telles que la non validation du caractère biocompatible et biorésorbable de la matrice polymère. Afin de répondre à ces deux critèr
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Montheil, Titouan. "Conception d’hydrogels hybrides pour la préparation de géloses synthétiques." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS012.

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Des hydrogels hybrides ont été développés comme alternative aux hydrogels d’agar utilisés en microbiologie. Notre stratégie repose sur la fonctionnalisation de polymères avec des groupements triéthoxysilanes, puis leurs mises en jeu dans le procédé sol-gel afin de fabriquer un hydrogel hybride organique-inorganique. Ce procédé est bio-orthogonal et biocompatible. Il se déroule en milieu aqueux, à pH physiologique et température ambiante. Dans une première partie, nous avons développé des hydrogels à base de PEG bisilylé. Nous avons montré que l’incorporation de PEG monosilylé permettait un rel
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Sowinski, Heike. "Struktur, Eigenschaften und Reaktionen oxidierter Dextrane." [S.l. : s.n.], 2008.

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Maleki, Laleh. "Synthesis of AcGGM Polysaccharide Hydrogels." Doctoral thesis, KTH, Polymerteknologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-195091.

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Lignocellulosic biomass is believed to serve a prominent role in tomorrow’s sustainable energy and material development. Among the polysaccharide fractions of lignocellulosic biomass, the potential of hemicelluloses as a valuable material resource is increasingly recognized. Thanks to their hydrophilic structure, hemicelluloses are suitable substrates for hydrogel design. The work summarized in this thesis aims to develop feasible strategies for the conversion of O-acetyl galactoglucomannan (AcGGM), an ample hemicellulose in softwood, into hydrogels. Within this framework, four synthetic pathw
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Ba, Maguette. "Reconstruction valvulaire aortique : Mise au point d’une prothèse en péricarde autologue prétraitée par un hydrogel de polysaccharide." Thesis, Paris 13, 2014. http://www.theses.fr/2014PA132055/document.

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Objectifs : Il n’existe pas de valve de remplacement idéale à l’heure actuelle. L’utilisation du péricarde autologue pour confectionner une valve de remplacement dans le même temps opératoire est une alternative intéressante. Le but de cette étude est de mettre au point une nouvelle méthode de préparation des tissus utilisant un gel polysaccahridique et de standardiser les techniques de préparation, de fabrication et d’implantation de la néo-valve péricardique. Méthodes : Au total 18 moutons ont été opérés pour un remplacement valvulaire aortique par autogreffe péricardique traitée par gel de
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Hadrich, Ahdi. "Nouveaux hydrogels à base de polysaccharide obtenus par voie biomimétique ou par photoréticulation." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR017/document.

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Dans un contexte de démarche écoresponsable et pour répondre aux exigences de biocompatibilité notamment dans les applications cosmétiques et biomédicales, nous avons développé de nouveaux hydrogels à base de polysaccharides neutres et anioniques en utilisant deux voies originales. La 1ère approche est biomimétique et a consisté à mimer un phénomène d’élaboration naturelle d’hydrogels que l’on retrouve chez certains végétaux pour lesquels une enzyme, la laccase, permet de créer des liens de réticulation par dimérisation des composés phénoliques (en l’occurrence de l’acide férulique FA) présent
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Nedomová, Eva. "Nové hydrogely na bázi polysacharidů pro regeneraci měkkých tkání: příprava a charakterizace." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2015. http://www.nusl.cz/ntk/nusl-217105.

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Předložená diplomová práce se zabývá přípravou, síťováním a fyzikálně-chemickou charakterizací hydrogelů na bázi polysacharidů. Cílem práce bylo vyvinout elastické filmy, které by mohly být použity pro vlhké hojení ran. Teoretická část shrnuje současné způsoby regenerace měkkých tkání a jejích náhradách (ať už se jedná o přírodní nebo syntetické materiály). Zároveň jsou zdůrazněny základní informace o přírodních polysacharidech (chemická struktura, rozpustnost, tepelná a pH stabilita atd.), jejich modifikace a chemické síťování. Experimentální část je zaměřena na modifikaci přírodní gumy Karay
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Chen, Li. "Hydrogel/Polymer Micelles Composites Derived from Polymerization of Microemulsions for Oral Drug Delivery." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1374539384.

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Grenier, Jérôme. "Hydrogel poreux pour la reconstruction osseuse : élaboration, caractérisation et mise en œuvre dans un bioréacteur à perfusion." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC091.

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La reconstruction de larges défauts osseux nécessite l’implantation de matrices jouant le rôle d’échafaudage, biocompatibles, biodégradables et capables de promouvoir la régénération osseuse. Cette thèse porte sur un biomatériau poreux dont certaines formulations ont déjà démontré leur potentiel de régénération osseuse chez le rat et la chèvre. Il est obtenu par lyophilisation d’un hydrogel de polysaccharides (pullulane et dextrane) réticulé chimiquement.Dans un premier temps, on s’intéresse à l’influence des paramètres du procédé d’élaboration sur la structure poreuse du biomatériau. Les matr
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Araujo, Luciana Santos de. "Preparação e avaliação de hidrogéis nanocompósitos à base de alginato na remoção de Cu (II) e Zn (II) de soluções aquosas." Universidade do Estado do Rio de Janeiro, 2014. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=6531.

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Esta dissertação teve como objetivo, a preparação de hidrogéis à base de alginato contendo argila e material magnético em sua estrutura. Foram analisadas as modificações nas características físico-químicas dos hidrogéis preparados com diferentes reticulantes (CaCl2 e FeCl3) e diferentes concentrações de material magnético (1 e 3 % m/m) e argila (1, 5 e 10 %). Após isso, os hidrogéis foram avaliados quanto à capacidade de remoção de íons Cu2+ e Zn2+ de soluções aquosas. As amostras foram caracterizadas quanto à composição química por espectroscopia na região do infravermelho (FTIR), quanto à mo
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Books on the topic "Hydrogel de polysaccharide"

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Chitosan-based hydrogels: Functions and applications. CRC Press, 2012.

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Engineered carbohydrate-based materials for biomedical applications: Polymers, surfaces, dendrimers, nanoparticles, and hydrogels. Wiley, 2011.

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Li, Junjie, Kangde Yao, Fanglian Yao, and Yuji Yin. Chitosan-Based Hydrogels: Functions and Applications. Taylor & Francis Group, 2017.

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Narain, Ravin. Engineered Carbohydrate-Based Materials for Biomedical Applications: Polymers, Surfaces, Dendrimers, Nanoparticles, and Hydrogels. Wiley & Sons, Incorporated, John, 2011.

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Narain, Ravin. Engineered Carbohydrate-Based Materials for Biomedical Applications: Polymers, Surfaces, Dendrimers, Nanoparticles, and Hydrogels. Wiley & Sons, Incorporated, John, 2010.

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Narain, Ravin. Engineered Carbohydrate-Based Materials for Biomedical Applications: Polymers, Surfaces, Dendrimers, Nanoparticles, and Hydrogels. Wiley & Sons, Incorporated, John, 2011.

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Book chapters on the topic "Hydrogel de polysaccharide"

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Maiti, Sabyasachi, and Sougata Jana. "Carboxymethyl Polysaccharide-Based Multiunit Hydrogel Systems for Drug Delivery." In Particulate Technology for Delivery of Therapeutics. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3647-7_7.

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Schückel, Julia, and Stjepan Krešimir Kračun. "Two-Dimensional High-Throughput Endo-Enzyme Screening Assays Based on Chromogenic Polysaccharide Hydrogel and Complex Biomass Substrates." In Cellulases. Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-7877-9_15.

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Leone, Gemma, and Rolando Barbucci. "Polysaccharide Based Hydrogels for Biomedical Applications." In Hydrogels. Springer Milan, 2009. http://dx.doi.org/10.1007/978-88-470-1104-5_4.

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Bhatia, Jaspreet Kaur, Balbir Singh Kaith, and Susheel Kalia. "Polysaccharide Hydrogels: Synthesis, Characterization, and Applications." In Polysaccharide Based Graft Copolymers. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36566-9_7.

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Aminabhavi, Tejraj M., and Anand S. Deshmukh. "Polysaccharide-Based Hydrogels as Biomaterials." In Polymeric Hydrogels as Smart Biomaterials. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-25322-0_3.

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Lindblad, Margaretha Söderqvist, John Sjöberg, Ann-Christine Albertsson, and Jonas Hartman. "Hydrogels from Polysaccharides for Biomedical Applications." In ACS Symposium Series. American Chemical Society, 2007. http://dx.doi.org/10.1021/bk-2007-0954.ch010.

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Lindblad, Margaretha Söderqvist, Olof Dahlman, John Sjöberg, and Ann-Christine Albertsson. "Modified Galactoglucomannans from Forestry Waste-water for Films and Hydrogels." In Polysaccharide Materials: Performance by Design. American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1017.ch010.

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Spychaj, T., and A. Bartkowiak. "Composite Hydrogels of the Polysaccharide / Polyvalent Metal Type." In Aqueous Organometallic Chemistry and Catalysis. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0355-8_21.

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Iresha, Harshani, and Takaomi Kobayashi. "Smart Polysaccharide Hydrogels in Drug Delivery and Release." In Advanced Biopolymeric Systems for Drug Delivery. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46923-8_6.

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Akiyoshi, K., S. Deguchi, I. Taniguchi, and J. Sunamoto. "Nanosize Hydrogel Formed by Self-Assembly of Hydrophobized Polysaccharides." In Advanced Biomaterials in Biomedical Engineering and Drug Delivery Systems. Springer Japan, 1996. http://dx.doi.org/10.1007/978-4-431-65883-2_101.

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Conference papers on the topic "Hydrogel de polysaccharide"

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Lee, Jae-Won, Hyo-Seok An, and Kuen Yong Lee. "Polysaccharide-Based Hydrogels for Tissue Engineering." In The World Congress on Recent Advances in Nanotechnology. Avestia Publishing, 2016. http://dx.doi.org/10.11159/nddte16.112.

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Pandit, V., and S. P. Kotha. "Genipin crosslinked polysaccharide hydrogels as rheologically enhanced osteoblast growth substrates." In 2012 38th Annual Northeast Bioengineering Conference (NEBEC). IEEE, 2012. http://dx.doi.org/10.1109/nebc.2012.6207071.

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Modak, Piyush, Asya Bakhtina, Gloria Portocarrero, Treena Arinzeh, Willis Hammond, and George Collins. "Use of GAG-like polysaccharides to engineer hydrogel-filled nanofibrous structures." In 2010 36th Annual Northeast Bioengineering Conference. IEEE, 2010. http://dx.doi.org/10.1109/nebc.2010.5458210.

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Venuto, Kathryn, Vaibhav Pandit, and Shiva Kotha. "Multifunctional Polysaccharide Hydrogels Capable of Mineralization, Vascularization, and Anti-bacterial Efficacy." In 2013 39th Annual Northeast Bioengineering Conference (NEBEC). IEEE, 2013. http://dx.doi.org/10.1109/nebec.2013.113.

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joshi, Bhavita, George Collins, and Treena Arinzeh. "Gelatin/sulfated polysaccharides blends: An approach to mimic hydrogel behavior in articular cartilage." In 2011 37th Annual Northeast Bioengineering Conference (NEBEC). IEEE, 2011. http://dx.doi.org/10.1109/nebc.2011.5778672.

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Maestro, Alicia, Esther Santamaria, Jose Maria Gutierrez, and Carmen Gonzalez. "Encapsulation of hydrophilic and lipophilic active principles in coloured polysaccharide hydrogels: study of stability." In 14th Mediterranean Congress of Chemical Engineering (MeCCE14). Grupo Pacífico, 2020. http://dx.doi.org/10.48158/mecce-14.dg.08.03.

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Lukasiewicz, Marcin. "Solid Complex of Hydrogen Peroxide as a Safe and Green Oxidant for Polysaccharide Modification." In The 16th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2012. http://dx.doi.org/10.3390/ecsoc-16-01077.

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Wang, Ying, and Youping Chen. "An Atomic Model of Cellulose Network in Wood Cell Wall." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67603.

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Wood is composed of parallel columns of long hollow cells which are made up of layered composite of semi-crystalline cellulose fibrils embedded in an amorphous matrix of hemicellulose and lignin. The extraordinary mechanical performance of wood is believed to result from a molecular mechanism operated through hydrogen bond connection. However, the molecular interactions, the assembly method of cell-wall components, as well as the molecular mechanisms responsible for the deformation of wood, are not well understood yet. Progress in studying the superior mechanical properties of wood cell is sev
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Motosuke, Masahiro, Yuji Nagasaka, and Shinji Honami. "Time-Resolved and Micro-Scale Measurement of Thermal Property for Intermolecular Dynamics Using an Infrared Laser." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32918.

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This paper describes a time-resolved measurement of thermal property in microscale during reaction process of a polymer by using an infrared (IR) laser. Polymer and gel-like material, so-called macromolecules, have diversity in its structure and intermolecular association, and recent development of measurement and control technique in micro- and nano-scale has open up new possibilities for the property design in the materials, including the control of thermophysical properties. The heat conduction process in macromolecules is affected by the internal structure or intermolecular association of
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Ciardelli, G., F. M. Montevecchi, P. Giusti, et al. "Molecular Imprinted Nanostructures in Biomedical Applications." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95669.

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Molecular imprinting is an emerging technology that allows to introduce nanostructured cavities into a polymer. In preparing molecular imprinted polymers (MIPs), the functional monomer(s) is first prearranged around the template molecule by specific interactions; the polymerisation is then carried out with a high percentage of cross-linking agent (which “freezes” the macromolecular network). Molecular mechanics and dynamics can be used to gain indications on the best monomers to be used in order to maximize interactions with the template. Once the polymerization reaction has been completed, th
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