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Dissertations / Theses on the topic 'Biocompatible polymer'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Tang, Yiqing. "Swelling of biocompatible polymer films." Thesis, University of Surrey, 2001. http://epubs.surrey.ac.uk/844409/.

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The incorporation of drugs into phosphorylcholine (PC) polymers coated onto coronary stent surfaces is one potential method of treatment for reducing restenosis, the reclosure of the artery after angioplasty treatment. This work on the characterisation of the swelling performance of thin PC polymer films represents a further extension of the study on biocompatible polymers. The broad aim of this work is to relate the PC polymer structure and film processing conditions to their swelling, drug loading and release kinetics. As the two highly sensitive and powerful techniques in film structure det

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2

Pernagallo, Salvatore. "Biocompatible polymer microarrays for cellular high-content screening." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/7571.

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The global aim of this thesis was to study the use of microarray technology for the screening and identification of biocompatible polymers, to understand physiological phenomena, and the design of biomaterials, implant surfaces and tissue-engineering scaffolds. This work was based upon the polymer microarray platform developed by the Bradley group. Polymer microarrays were successfully applied to find the best polymer supports for: (i) mouse fibroblast cells and used to evaluate cell biocompatibility and cell morphology. Fourteen polyurethanes demonstrated significant cellular adhesion. (ii) A

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3

Munj, Hrishikesh. "CO2 ASSISTED PROCESSING OF BIOCOMPATIBLE ELECTROSPUN POLYMER BLENDS." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1400693315.

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4

Trevor, Peter Benjamin. "Evaluation of biocompatible osteoconductive polymer (BOP) as an osteconductive implant." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10312009-020130/.

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5

Haria, Mehul. "Design, synthesis, and optical characterization of a novel, biocompatible azo-polymer." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101850.

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The goal of this thesis was to create a novel stable water-soluble azo polymer with photoswitchable properties, which was to be used as a scaffold in directing neuron growth. The new polymer, PDR2, was synthesized and extensively characterized to understand its physical and chemical properties, as well as to ascertain the structure. Characterization techniques included nuclear magnetic resonance, thermogravimetric analysis, differential scanning calorimetry, absorption spectroscopy, and ellipsometry. The photoresponsive properties of the polymer were then studied by examining quantum yields an

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6

Bagudanch, Frigolé Isabel. "Incremental sheet forming applied to the manufacturing of biocompatible polymer prostheses." Doctoral thesis, Universitat de Girona, 2017. http://hdl.handle.net/10803/461838.

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Incremental Sheet Forming (ISF) technology has been mainly applied on metallic sheets during the last years. ISF is used due to its flexibility, low costs, low batch production, production of complex geometries and customized prodcuts. For this reason ISF seems to be the ideal process for prosthesis production. The main objective of the thesis is to study the ISF technology, considering Single Point Incremental Forming (SPIF) and Two Point Incremental Forming (TPIF) variants, on biocompatible polymers to obtain a real customized cranial implant. The methodology is based on the following step

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7

Buddhiranon, Sasiwimon. "Phytochemical Modification of Biodegradable/Biocompatible Polymer Blends with Improved Immunological Responses." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1352951953.

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8

Li, Yun. "Development of Biocompatible Polymer Monoliths for the Analysis of Proteins and Peptides." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3161.pdf.

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9

Greenhalgh, Kerriann R. "Development of biocompatible multi-drug conjugated nanoparticles/smart polymer films for biomedicinal applications." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002318.

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10

Holdaway, James. "A study of the structure and formation of biocompatible mesostructured polymer- surfactant hydrogel films." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648942.

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The aim of this work has been to investigate the formation of films and to couple their properties with the bulk behaviour of the film forming components. The primary goal was to improve the biocompatibility of the films, as films are of great interest to the biomedical industry. The investigated films form spontaneous at an air-water interface and some are robust enough to be removed from the surface. The films are formed by mixed surfactants of the cationic CTAB and the zwitterionic SB3-14 together with the polymer PEI, in a short and long form. The film structures are investigated with vary

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11

Asati, Atul. "SYNTHESIS OF BIOCOMPATIBLE ANTIOIXIDANT POLYMER COATED CERIUM OXIDE NANOPARTICLES, ITS OXIDASE LIKE BEHAVIOR AND CELLULAR UPTAKE." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2229.

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Cerium oxide nanoparticles have been widely used for various applications such as catalytic converters for automobile exhaust, ultraviolet absorber, and electrolyte in fuel cells. Most recently, cerium oxide nanoparticles (nanoceria) have been employed as potent free-radical scavengers with neuroprotective, radioprotective, and anti-inflammatory properties. These properties of cerium oxide nanoparticles can open new vistas in medicine and biotechnology. The present study utilizes the water-based-wet-chemical method to synthesize biocompatible,stable and highly monodisperse polymer coated ceriu

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12

Nikam, Shantanu P. "RATIONAL DESIGN AND SYNTHESIS OF FUNCTIONAL POLYMERS FOR ANTIMICROBIAL, ANTI-FOULING AND ANTI-ADHESIVE BIOMATERIAL APPLICATIONS." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1620215379000849.

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13

Chaparro, Francisco Javier. "Biocompatible Electrospun Vehicles To Enhance the Effectiveness Of Anti-Fertility Strategies And Their Biomimetic Properties As Blood Vessel Scaffolds." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1514986344784852.

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14

Kutikov, Artem B. "Amphiphilic Degradable Polymer/Hydroxyapatite Composites as Smart Bone Tissue Engineering Scaffolds: A Dissertation." eScholarship@UMMS, 2011. http://escholarship.umassmed.edu/gsbs_diss/755.

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Over 600,000 bone-grafting operations are performed each year in the United States. The majority of the bone used for these surgeries comes from autografts that are limited in quantity or allografts with high failure rates. Current synthetic bone grafting materials have poor mechanical properties, handling characteristics, and bioactivity. The goal of this dissertation was to develop a clinically translatable bone tissue engineering scaffold with improved handling characteristics, bioactivity, and smart delivery modalities. We hypothesized that this could be achieved through the rational selec

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15

Kutikov, Artem B. "Amphiphilic Degradable Polymer/Hydroxyapatite Composites as Smart Bone Tissue Engineering Scaffolds: A Dissertation." eScholarship@UMMS, 2014. https://escholarship.umassmed.edu/gsbs_diss/755.

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Over 600,000 bone-grafting operations are performed each year in the United States. The majority of the bone used for these surgeries comes from autografts that are limited in quantity or allografts with high failure rates. Current synthetic bone grafting materials have poor mechanical properties, handling characteristics, and bioactivity. The goal of this dissertation was to develop a clinically translatable bone tissue engineering scaffold with improved handling characteristics, bioactivity, and smart delivery modalities. We hypothesized that this could be achieved through the rational selec

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16

Gu, Binghe. "Development of Polymer Monoliths for the Analysis of Peptides and Proteins." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/1296.

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Several novel polymer monoliths for the analysis of peptides and proteins were synthesized using polyethylene glycol diacrylate (PEGDA) as crosslinker. Photo-initiated copolymerization of polyethylene glycol methyl ether acrylate and PEGDA yielded an inert monolith that could be used for size exclusion liquid chromatography of peptides and proteins. This macroscopically uniform monolith did not shrink or swell in either water or tetrahydrofuran. More importantly, it was found to resist adsorption of both acidic and basic proteins in aqueous buffer without any organic solvent additives. A stron

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17

Zakharchenko, Svetlana. "Encapsulation of particles and cells using stimuli-responsive self-rolling polymer films." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-141407.

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This thesis is focused on the design and development of an approach, allowing the fabrication of biocompatible/biodegradable self-rolled polymer tubes, which are sensitive to stimuli at physiological conditions, can be homogenously filled with cells and are able to self-assemble into a complex 3D construct with uniaxially aligned pores. These constructs are aimed to recreate the microstructure of tissues with structural anisotropy, such as of muscles and bones. The approach consists of two steps of self-assembly. As a first step, cells are adsorbed on the top of an unfolded bilayer; triggered

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18

Asplund, Basse. "Biodegradable Thermoplastic Elastomers." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7434.

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19

Meenakshisundaram, Guruguhan. "Development of novel implantable sensors for biomedical oximetry." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1217427728.

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20

Åkerlund, Elin. "Development of polymer based composite filaments for 3D printing." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388554.

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The relatively new and still growing field of 3D-printing has opened up the possibilities to manufacture patient-specific medical devices with high geometrical accuracy in a precise and quick manner. Additionally, biocompatible materials are a demand for all medical applications while biodegradability is of importance when developing scaffolds for tissue growth for instance. With respect to this, this project consisted of developing biocompatible and bioresorbable polymer blend and composite filaments, for fused deposition modeling (FDM) printing. Poly(lactic acid) (PLA) and polycaprolactone (

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21

Oborná, Jana. "Studium degradace biokompatibilních kopolymerů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2011. http://www.nusl.cz/ntk/nusl-216802.

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This diploma thesis is focused on biocompatible polymers degradation study. Copolymers were studied based on poly(lactic-co-glycolic) acid and poly(ethylene glycol) PLGA-PEG-PLGA and further these copolymers modified with itaconic acid ITA-PLGA-PEG-PLGA-ITA. This paper investigated the influence of pH phosphate solution on the degradation of polymers. Degradation of polymers occurred at 37 °C in phosphate solution with pH 4.2, 7.4 and 9.2. High performance liquid chromatography with UV-VIS detection of diode-array type was used for quantitative determination of lactic acid and glycolic acid as

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22

Treharne, Andrew J. "Development of biocompatible polymers for ocular applications." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/344289/.

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Age-related macular degeneration (AMD) is the largest cause of blindness for those over 65 in the developed world. There is currently no treatment for the retinal cellular loss associated with the disease. One potential therapy is to implant retinal stem cells into the eye using a biodegradable polymer scaffold. Blends of the biodegradable polymers, poly(L-lactic acid) (PLLA) and poly(D,L-lactic-co-glycolic acid) (PLGA) have been formulated into microspheres. The influence of changing processing parameters on the size and morphology of the microspheres has been studied. A human retinal pigment

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23

Törne, Karin. "Biocompatible X-ray opaque polymers for medical devices." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-44036.

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During coronary catheterization X-ray imaging is used to image coronary artery system. After the procedure X-ray imaging may be used to locate devices purposely left in the patient. The objective of this thesis was to investigate the possibility of improving X-ray opacity to medical devices made by St Jude Medical Systems AB. Two different routes were explored, inorganic-organic hybrid materials and functionalization of polymers with iodine. Sol-Gel synthesis was used to synthesize nanocomposite hybrid materials with TiO2 and Ta2O5. Iodine was incorporated by the use of an iodine containing in

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24

Marinho, Mariana da Silva. "Biocompatible polymeric coatings for bone tissue regeneration." Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/9914.

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Mestrado em Materiais e Dispositivos Biomédicos<br>Um dos grandes desafios da investigação biomédica é ultrapassar as taxas de rejeição de próteses implantadas melhorando as suas propriedades como biomateriais, garantindo assim maior qualidade de vida aos pacientes. Grande parte destas próteses é constituída por componentes metálicas que, por serem inertes, surge uma necessidade de as melhorar. Uma das soluções reside no revestimento do metal por um polímero, de preferência com capacidade de induzir a regeneração óssea. Neste trabalho testou-se a adesão entre o aço 316L, material muito utiliz

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25

Wingkono, Gracy A. "Design and characterization of materials." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31735.

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26

Flores-Santana, Wilmarie. "Polyamines stabilization of biocompatible polymers for nitric oxide delivery /." Akron, OH : University of Akron, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1137691035.

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Thesis (Ph. D.)--University of Akron, Dept. of Chemistry, 2006.<br>"May, 2006." Title from electronic dissertation title page (viewed 09/16/2006). Advisor, Daniel J. Smith; Committee members, Michael J. Taschner, Kim C. Calvo, Chrys Wesdemiotis, Darrell H. Reneker; Department Chair, Michael J. Taschner; Dean of the College, Ronald F. Levant; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.

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27

Jose, Ann Jasmine. "Synthesis and screening of biocompatible polymers using a multiparallel approach." Thesis, University of Southampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443039.

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28

Mohomed, Kadine. "Thermal analyses of hydrophilic polymers used in nanocomposites and biocompatible coatings." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001442.

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29

Kandanapitiye, Murthi S. "Synthesis of Biocompatible Nanoparticulate Coordination Polymers for Diagnostic and Therapeutic Applications." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1429019837.

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30

Knight, Pamela Tiffany. "Polyester-based Biodegradable Systems Incorporating POSS." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1250709236.

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Thesis(Ph.D.)--Case Western Reserve University, 2010<br>Title from PDF (viewed on 2009-12-22) Department of Macromolecular Science and Engineering Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center

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31

Ginsac, Nathalie. "Caractérisation de matériaux composite polyacide lactique-bioverre pour application dans la réparation osseuse." Phd thesis, INSA de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00668698.

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Ce travail de thèse porte sur la caractérisation d'un matériau composite polyacide lactique-bioverre pour application comme dispositif de réparation osseuse. Le bioverre étant trop fragile pour être utilisé seul comme dispositif de réparation osseuse, celui-ci est associé à une matrice polymère résorbable permettant d'apporter le caractère bioactif à des matériaux pouvant être mis en forme par des procédés de plasturgie. Le matériau composite polyacide lactique-bioverre est ainsi mis en forme par injection à partir de granules élaborés par voie solvant. La caractérisation des propriétés de ce

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32

Bodin, Noémi. "Formation d'émulsions multiples stables, stimulables et biocompatibles; application à l'encapsulation et au relargage contrôlé de principes actifs." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX060/document.

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Dans ce travail, nous nous sommes intéressés aux émulsions stabilisées par une famille de copolymères diblocs biocompatibles polydiméthylsiloxane-b-poly(méthacrylate de diméthylaminoéthyle) (PDMS-b-PDMAEMA). Le bloc PDMAEMA, porteur de fonctions amines, est sensible au pH et à la force ionique. En faisant varier ces deux paramètres, des émulsions directes, inverses et multiples E/H/E ont pu être obtenues en une seule étape d’émulsification, par cisaillement d’une phase aqueuse et d’une phase huile biocompatible (Miglyol® 812 ou myristate d’isopropyle). Pour un copolymère présentant des longueu

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33

Mettra, Bastien. "Ingénierie, photophysique et fonctionnalisation de chromophores pour la bio-photonique non linéaire in-vivo." Thesis, Lyon, École normale supérieure, 2015. http://www.theses.fr/2015ENSL1038/document.

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L’utilisation de chromophores absorbant à deux photons (ADP) pour des applications en photothérapie dynamique (PDT) et en imagerie de fluorescence présente de nombreux avantages. Les propriétés non-linéaires de ces chromophores permettent notamment d’améliorer la longueur de pénétration dans les organismes vivants ainsi que la résolution. Pour des applications in-vivo la biocompatibilité de ces chromophores lipophiles doit aussi se poser. Une étude d’ingénierie pour le développement de chromophores pour la PDT-ADP en utilisant des atomes de brome comme groupe générateur d’oxygène singulet est

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34

Krikorian, Vahik. "Bio-nanocomposites fabrication and characterization of layered silicate nanocomposites based on biocompatible/biodegradable polymers / by Vahik Krikorian." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file , 11.06 Mb, 148 p, 2005. http://wwwlib.umi.com/dissertations/fullcit/3187609.

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35

Tiwari, Ashutosh, Yashpal Sharma, Shinya Hattori, et al. "Influence of poly(N-isopropylacrylamide)-CNT-polyaniline three-dimensional electrospun microfabric scaffolds on cell growth and viability." Linköpings universitet, Biosensorer och bioelektronik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-85583.

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This study investigates the effect on: 1) the bulk surface; and 2) the three-dimensional non-woven microfabric scaffolds of poly(N-isopropylacylamide)-CNT-polyaniline on growth and viability of mice fibroblast cells L929. The poly(N-isopropylacylamide)-CNT-polyaniline was prepared using coupling chemistry and electrospinning was then used for the fabrication of responsive, nonwoven microfabric scaffolds. The electrospun microfabrics were assembled in regular three-dimensional scaffolds with OD: 400-500 mm; L: 6-20 cm. Mice fibroblast cells L929 were seeded on the both poly(N-isopropylacylamid

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36

Yoo, Jun. "Synthesis of new biodegradable polysulfenamides for applications in medicine." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/1114.

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The first polysulfenamides were synthesized with S-N and N-S-N bonds along the backbone. We demonstrated that sulfenamides were stable in polar protic and aprotic solvents, but degraded rapidly when exposed to acidic conditions. Microparticles were fabricated from polysulfenamides with S-N bonds, their surfaces were readily functionalized, and they were internalized by cells allowing for intracellular delivery of their cargo. These microparticles were also stable at physiological pH, degraded under acidic conditions, and possessed minimal toxicity towards cells. This work demonstrated that pol

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37

Ardiyanti, Rizza. "Design and characterization of Chitin- Glucan polymeric structures for wound dressing materials." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/13306.

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The main objective of this work was the development of polymeric structures, gel and films, generated from the dissolution of the Chitin-Glucan Complex (CGC) in biocompatible ionic liquids for biomedical applications. Similar as chitin, CGC is only soluble in some special solvents which are toxic and corrosive. Due to this fact and the urgent development of biomedical applications, the need to use biocompatible ionic liquids to dissolve the CGC is indispensable. For the dissolution of CGC, the biocompatible ionic liquid used was Choline acetate. Two different CGC’s, KiOnutrime from KitoZyme a

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38

Duffau, Emilie. "Systèmes injectables à libération prolongée de principe actif à partir de matériaux biocompatibles." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0368.

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Les systèmes à libération prolongée de principe actif constituent un enjeu thérapeutique dans le domaine pharmaceutique et vétérinaire. Ces systèmes présentent différents avantages comme une réduction de la fréquence d’administration permettant une meilleure observance du traitement ainsi qu’un apport optimisé de la dose thérapeutique. Des systèmes à base de principe actif hydrophobe, de polymère et de composé hydrosoluble, ont été élaborés selon différents procédés et ont été caractérisés. Les relations structure/fonctionnalité des différents systèmes ont été mises en évidences grâce à différ

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Marpu, Sreekar B. "Biocompatible Hybrid Nanomaterials Involving Polymers and Hydrogels Interfaced with Phosphorescent Complexes and Toxin-Free Metallic Nanoparticles for Biomedical Applications." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc84243/.

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The major topics discussed are all relevant to interfacing brightly phosphorescent and non-luminescent coinage metal complexes of [Ag(I) and Au(I)] with biopolymers and thermoresponsive gels for making hybrid nanomaterials with an explanation on syntheses, characterization and their significance in biomedical fields. Experimental results and ongoing work on determining outreaching consequences of these hybrid nanomaterials for various biomedical applications like cancer therapy, bio-imaging and antibacterial abilities are described. In vitro and in vivo studies have been performed on majority

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Meslard, Jean-Claude. "Immobilisation temporaire de medicaments par des liaisons hydrolysables sur des polymeres biocompatibles : application a l'ophtalmologie." Paris 6, 1988. http://www.theses.fr/1988PA066417.

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L'objectif est l'immobilisation reversible de medicaments (chloramphenicol, indometacine) au sein de lentilles de contact hydrophiles permettant une liberation lente et continue lors de leur adaptation sur des yeux malades

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41

Hertault, Adrien. "Conception et évaluation d’un stent actif pro-cicatrisant basé sur la polydopamine, un polymère biocompatible et bioinspiré." Thesis, Lille 2, 2019. http://www.theses.fr/2019LIL2S031.

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Introduction : La resténose intra-stent (RIS) est induite par une prolifération incontrôlée des cellules musculaires lisses (CML) après l'implantation d'une stent métallique nu (BMS). Elle est associée à la récurrence des symptômes et à des coûts de santé supplémentaires. Les stents à élution médicamenteuse, dits « actifs », ont démontré leur efficacité sur la RIS, mais induisent un risque élevé de thrombose aiguë tardive due à une réendothélialisation tardive des mailles. La polydopamine (PDA), un polymère biocompatible inspiré du mucus secrété par les moules, promouvrait la prolifération de

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42

Hachet, Emilie. "Systèmes biocompatibles et biodégradables par modification chimique contrôlée de polysaccharides pour le traitement de patients diabétiques." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENV083.

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Ce travail de thèse s'inscrit dans un domaine de recherche actuellement en pleine expansion, celui des nanomatériaux stimulables. Il vise à concevoir de nouveaux matériaux biocompatibles et biodégradables par modification chimique contrôlée de polysaccharides pour le traitement de patients diabétiques. Le diabète est un problème de santé publique majeur qui affecte environ 250 millions de personnes dans le monde actuellement contre 30 millions il y a 20 ans. Cette maladie se traduit par un taux de glucose anormalement élevé dans le sang dû à un manque d'insuline. Cette protéine est habituellem

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43

Yan, Feng. "Synthese et adsorption de polymeres biocompatibles destines a moduler les proprietes de membranes utilisees en plasmapherese et en dialyse renale." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13242.

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Des polymacromeres biocompatibles destines a moduler les proprietes des membranes de plasmapherese et de dialyse renale ont ete synthetisees puis caracterises en solution et a l'etat solide. Leur adsorption sur ces membranes a ete etudiee en detail. L'effort de recherche a porte principalement sur les points suivants: obtention d'homopolymeres de l'acrylate et du methacrylate de monomethoxy-poly(ethylene glycol) (monomere a), de fortes masses moleculaires; etude du phenomene de gelification au cours de la polymerisation en phase homogene; analyse de la cinetique de copolymerisation radicalaire

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Mahato, Prabir. "Study and development of resistive memories for flexible electronic applications." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI134.

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L’avènement de l’électronique flexible a entraîné des recherches rapides sur des capteurs, des dispositifs bio-implantables et portables pour l’évaluation de maladies telles que l’épilepsie, la maladie de Parkinson et les crises cardiaques. Les dispositifs de mémoire sont des composants majeurs dans tous les circuits électroniques, uniquement secondaires aux transistors, par conséquent de nombreux efforts de recherche sont consacrés au développement de dispositifs de mémoire flexibles. Les mémoires à accès aléatoire à pont conducteur (CBRAM) basées sur la création / dissolution d'un filament m

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Castagnola, Valentina. "Implantable microelectrodes on soft substrate with nanostructured active surface for stimulation and recording of brain activities." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2646/.

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Les prothèses neuronales implantables offrent de nos jours une réelle opportunité pour restaurer des fonctions perdues par des patients atteints de lésions cérébrales ou de la moelle épinière, en associant un canal non-musculaire au cerveau ce qui permet la connexion de machines au système nerveux. La fiabilité sur le long terme de ces dispositifs, se présentant sous la forme d'électrodes implantables, est un facteur crucial pour envisager des applications dans le domaine des interfaces cerveau-machine. Cependant, les électrodes actuelles pour l'enregistrement et la stimulation se détériorent

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Rajaraman, Swaminathan. "Micromachined three-dimensional electrode arrays for in-vitro and in-vivo electrogenic cellular networks." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28129.

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Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Mark G. Allen; Committee Member: Elliot L. Chaikof; Committee Member: Ionnis (John) Papapolymerou; Committee Member: Maysam Ghovanloo; Committee Member: Oliver Brand.

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Caceres, Najarro Marleny. "Depolymèrization enzymatique d’Hydroxypropyl Methyl Cellulose (HPMC) pour la conception des nouveaux copolymères à blocs." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2015. http://www.theses.fr/2015ENCM0027/document.

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Parmi les bio-polymères issus des ressources renouvelables, les polysaccharides fournissent une alternative intéressante aux polymères de synthèse. Dans ce contexte, l’objectif de ce travail de thèse est basé sur la conception des copolymères amphiphiles pour la préparation de nouveaux biomatériaux. Ainsi, l’hydroxypropylméthylcellulose (HPMC) a été étudiée en raison de ses propriétés remarquables, dont la biocompatibilité, la biodégradabilité, la rétention d'eau et la gélification thermoréversible. Ces propriétés sont utiles pour de nombreuses applications telles que le relargage de médicamen

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Rosario, Jeferson Cardoso do. "Desenvolvimento de cateter implantável de monitorização de pressão intracraniana." Universidade do Vale do Rio dos Sinos, 2019. http://www.repositorio.jesuita.org.br/handle/UNISINOS/7702.

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Submitted by JOSIANE SANTOS DE OLIVEIRA (josianeso) on 2019-03-25T11:56:58Z No. of bitstreams: 1 Jeferson Cardoso do Rosario_.pdf: 3523684 bytes, checksum: 6d033c623e7ef74a93692efd6ca37e8e (MD5)<br>Made available in DSpace on 2019-03-25T11:56:58Z (GMT). No. of bitstreams: 1 Jeferson Cardoso do Rosario_.pdf: 3523684 bytes, checksum: 6d033c623e7ef74a93692efd6ca37e8e (MD5) Previous issue date: 2019-01-18<br>Nenhuma<br>O traumatismo cranioencefálico (TCE) é atualmente a terceira maior causa de óbitos no âmbito mundial. Estudos recentes têm demonstrado que a monitorização de pressão intracran

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Hsieh, Kun-Lin, and 謝坤霖. "Synthesis of vaccine nanocarrier of fucoidan hybrid biocompatible polymer." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/31272236897984459936.

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碩士<br>國立臺灣科技大學<br>材料科學與工程系<br>105<br>In this study, we synthesized biocompatible vaccine nanocarrier hybrid polysaccride Fucoidan. Our research including two parts: In the first part, Gelaitn was hybrided with Fucoidan by chemical crosslinking method, a mean size was observed by DLS & SEM images, which located between 200~400nm nanoparticle, crosslinking structure has been comfirmed by IR spectrum. A high loading efficiency (45%) and high stability carrier (only 10% of drug were loss during 2 weeks) was prepared, which was measured by UV-vis spectrum. Furthermore, we observed drug loading imag

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Yang, Ing-Sing, and 楊仁成. "Biocompatible Osteoconductive Polymer for Intramedullary Fixation on Long Bone Fracure." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/50848723760107096040.

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碩士<br>國立成功大學<br>醫學工程學系<br>84<br>Metallic implants have being used for treatment of fracture for long time, there are disadvantages such as negative influece of metal on bone and second operation to remove the implate induce trauma and complications. Biocompatible polymer pins developed by soviet research, a copolymer of polyvinyl pyrrolicone and methylmethacrylate reinforced by polyamide fibes and calcium gluconate, have comparable strength of metal implants but superior flexibility. Using

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