Academic literature on the topic 'Nanofibres of chitosan'
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Journal articles on the topic "Nanofibres of chitosan":
Cheng, Tong, Rolf-Dieter Hund, Dilibaier Aibibu, Jana Horakova, and Chokri Cherif. "Pure Chitosan and Chitsoan/Chitosan Lactate Blended Nanofibres made by Single Step Electrospinning." Autex Research Journal 13, no. 4 (December 31, 2013): 128–33. http://dx.doi.org/10.2478/v10304-012-0040-6.
Che, Ai-Fu, Xiao-Jun Huang, Zhen-Gang Wang, and Zhi-Kang Xu. "Preparation and Surface Modification of Poly(acrylonitrile-co-acrylic acid) Electrospun Nanofibrous Membranes." Australian Journal of Chemistry 61, no. 6 (2008): 446. http://dx.doi.org/10.1071/ch07226.
Korniienko, Viktoriia, Yevheniia Husak, Anna Yanovska, Şahin Altundal, Kateryna Diedkova, Yevhen Samokhin, Yuliia Varava, Viktoriia Holubnycha, Roman Viter, and Maksym Pogorielov. "BIOLOGICAL BEHAVIOUR OF CHITOSAN ELECTROSPUN NANOFIBROUS MEMBRANES AFTER DIFFERENT NEUTRALISATION METHODS." Progress on Chemistry and Application of Chitin and its Derivatives 27 (September 30, 2022): 135–53. http://dx.doi.org/10.15259/pcacd.27.010.
Hild, Martin, Mohammed Fayez Al Rez, Dilbar Aibibu, Georgios Toskas, Tong Cheng, Ezzedine Laourine, and Chokri Cherif. "Pcl/Chitosan Blended Nanofibrous Tubes Made by Dual Syringe Electrospinning." Autex Research Journal 15, no. 1 (March 1, 2015): 54–59. http://dx.doi.org/10.1515/aut-2015-0016.
Nthunya, Lebea N., Monaheng L. Masheane, Soraya P. Malinga, Tobias G. Barnard, Edward N. Nxumalo, Bhekie B. Mamba, and Sabelo D. Mhlanga. "UV-assisted reduction of in situ electrospun antibacterial chitosan-based nanofibres for removal of bacteria from water." RSC Advances 6, no. 98 (2016): 95936–43. http://dx.doi.org/10.1039/c6ra19472a.
Jacobs, Valencia, Asis Patanaik, Rajesh D. Anandjiwala, and Malik Maaza. "Optimization of Electrospinning Parameters for Chitosan Nanofibres." Current Nanoscience 7, no. 3 (June 1, 2011): 396–401. http://dx.doi.org/10.2174/157341311795542570.
PROKOPCHUK, N. R., ZH S. SHASHOK, D. V. PRISHСHEPENK, and V. D. MELAMED. "NANOFIBRES ELECTROSPINNING FROM CHITOSAN SOLUTIONS (A REVIEW)." Polymer materials and technologies 1, no. 2 (2015): 36–56. http://dx.doi.org/10.32864/polymmattech-2015-1-2-36-56.
Salehi, Majid, Saeed Farzamfar, Arian Ehterami, Zahrasadat Paknejad, Farshid Bastami, Sadegh Shirian, Hamid Vahedi, Gholamreza Savari Koehkonan, and Arash Goodarzi. "Kaolin-loaded chitosan/polyvinyl alcohol electrospun scaffold as a wound dressing material: in vitro and in vivo studies." Journal of Wound Care 29, no. 5 (May 2, 2020): 270–80. http://dx.doi.org/10.12968/jowc.2020.29.5.270.
Abdelgawad, Abdelrahman M., Mehrez E. El-Naggar, Samuel M. Hudson, and Orlando J. Rojas. "Fabrication and characterization of bactericidal thiol-chitosan and chitosan iodoacetamide nanofibres." International Journal of Biological Macromolecules 94 (January 2017): 96–105. http://dx.doi.org/10.1016/j.ijbiomac.2016.07.061.
Fras Zemljič, Lidija, Uroš Maver, Tjaša Kraševac Glaser, Urban Bren, Maša Knez Hrnčič, Gabrijela Petek, and Zdenka Peršin. "Electrospun Composite Nanofibrous Materials Based on (Poly)-Phenol-Polysaccharide Formulations for Potential Wound Treatment." Materials 13, no. 11 (June 9, 2020): 2631. http://dx.doi.org/10.3390/ma13112631.
Dissertations / Theses on the topic "Nanofibres of chitosan":
Mafuma, Tendai Simbarashe. "Immobilisation of electric eel acetylcholinesterase on nanofibres electrospun from a nylon and chitosan blend." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1001620.
Ouerghemmi, Safa. "Electrospinning du chitosan pour l’élaboration de réseaux de nanofibres à activités antibactérienne et antithrombotique." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10199.
Biomaterials are designed to cure people suffering from chronic diseases or suffer injuries or burns. They are developed for intra or extra bodily applications (wound dressings, vascular prostheses, inguinal meshes artificial ligaments etc.). Thus, they must be biocompatible and hemocompatible at first, but research presently aims to give them additional properties (antibacterial, anti-thrombotic, regenerative). Chitosan (CHT) is a cationic biosourced polymer commonly used for these applications thanks to its intrinsic biological properties (biocompatible, bioresorbable, antibacterial, hemostatic, healing)In this context, we developed two kinds of bioactive membranes based on chitosan nanofibers by using the innovative electrospinning technology. Firtsly antibacterial NF have been obtaines by associating CHT with a anionic cyclodextrin polymer (PCD), known to trap and slowly release some bioactive compounds. Twotwo kinds of NFs loaded with triclosan (TCL) have been prepared: mixed CHT+PCD/TCL and core-sheath with PCD/TCL in core, and [CHT] as sheath. Secondly, antithrombotic NFs have been elaborated by chemically modifying CHT with sulfonate groups giving heparin-like properties to the NFs after electrospinning
Dimassi, Syrine. "Membranes bioactives à propriétés antithrombotiques ou ostéoinductrices élaborées par electrospinning." Electronic Thesis or Diss., Université de Lille (2018-2021), 2018. http://www.theses.fr/2018LILUR072.
Textiles are widely used in the biomedical field, in particular for the care of wounds or the design of prostheses for strengthening or regenerating organs damages by the disease of by accidental cause. The specifications for medical textile are evolving towards the development of bioresorable and bioactive biomaterials that are capable of interacting with living tissues according to their nature. In this context, the research project consists of generating, by electrospinning, two types of biomimetic and bioactive nanofibrous membranes based on chitosan. In a first approach, nanofibres of chitosan have been functionalized by polydopamine that contains catechol groups capable of inducing the in vitro biomineralization in a medium rich in calcium and phosphate ions. Thus, these nanofibrous membranes with osteoinductive properties could be used as scaffolds for guided tissue engineering in periodontology. In a second approach, the development of chitosan-based nanofibers with anticoagulant properties was conducted. Chitosan was initially chemically modified by sulfonate groups. The synthesis parameters allowed to control the degree of sulfonation of chitosan and its new polyampholyte specific character was observed. The different biological assays carried out have shown that these sulfonic derivatives are non-hemolytic and benefit from anticoagulant properties. Then, sulfonated chitosan-based nanofibres were obtained by electrospinning leading to membranes with antithrombotic properties, make them suitable candidates for the functionalization of vascular stents
Prokopchuk, N. R., Zh S. Shashok, K. V. Vishnevskii, and D. V. Prishchepenko. "Formation of Chitosan Nanofibers by Electrospinning Method." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42652.
Scheidt, Desiree Tamara. "Eletrofiação da quitosana e sua aplicação como curativo para feridas." Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/4018.
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Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do Estado do Paraná (FA)
Nanofibers generated using polymers are generally produced by the electrospinning method. It is a simple, economical and versatile technique that uses an electric force to generate ultrafine fibers. Chitosan is a non-toxic, biodegradable, biocompatible polymer obtained from renewable natural sources that attracts the interest of researchers. However, due to the difficulty of electrospinning pure chitosan, it has been tried to ally the poly (ethylene oxide) PEO to the polymeric matrix of chitosan, in order to facilitate the process of obtaining fibers. In this context, the initial objective of this work was to obtain a polymeric blends containing chitosan and PEO capable of generating nanofibers when subjected to the electrospinning process. The poly (ethylene oxide) was excellent as a helper in chitosan spinning, allowing the obtaining of fibers with up to 90% of the same and the average diameter obtained was of 320nm. The process parameters were evaluated and the ones that showed the best result were a concentration of 4% of chitosan and 2% of PEO, applied tension of 18kv and distance between the collector and needle of 20cm. The incorporation of PEO into the polymeric matrix of chitosan proved to be an effective strategy for obtaining nanofibers by the electrophilic process. The study was then carried out for the incorporation of the drug neomycin sulfate into the electrophilic matrix. Membranes in the ratio of 90/10 (v / v) chitosan / 4% PEO / 4% (m / v), as well as membranes in the ratio 80/20 (v / v) chitosan / PEO (4% / 2%) were studied as support for the incorporation of the drug. When the neomycin sulfate was incorporated together with the solution and subjected to electrospinning, the diameter of the fibers obtained were even smaller, with a mean of 258nm. The obtained membranes were subjected to physico-chemical analysis, which proved the miscibility of the polymers chitosan and PEO as well as confirmed the incorporation of the neomycin sulfate to the blend. The antimicrobial activity for the drug and non-drug membranes was investigated against Gram positive and Gram negative bacteria and the registered inhibition halos were larger or near the control. The neomycin sulfate release test indicated that it had a rapid release profile, and with only 120 minutes, much of the drug had already been released from the polymer film. In view of this, the membranes developed in this study suggest to be promising candidates for the application as a biomaterial in wound healing.
Nanofibras poliméricas podem ser produzidas utilizando o método de eletrofiação. Trata-se de uma técnica simples, econômica e versátil que utiliza um potencial elétrico para gerar fibras em escala nanométrica. Dentre os polímeros eletrofiados, pode-se destacar a quitosana, a qual é um polímero atóxico, biodegradável, biocompatível, obtido por meio de fontes naturais renováveis, que vem despertando o interesse de pesquisadores. No entanto, devido à dificuldade de eletrofiação desse material puro, tem-se buscado aliar o poli (óxido de etileno) PEO à matriz polimérica da quitosana, a fim de se facilitar o processo de obtenção de fibras. Nesse contexto, o objetivo inicial deste trabalho foi a obtenção de uma blenda polimérica contento quitosana e PEO capaz de gerar nanofibras quando sujeitas ao processo de eletrofiação. O poli (óxido de etileno) mostrou-se excelente como auxiliador na fiação da quitosana, permitindo a obtenção de fibras com até 90% da mesma e o diâmetro médio obtido foi de 320nm. Os parâmetros de processo foram avaliados e os que mostraram melhor resultado foi uma concentração de 4% (m/v) de quitosana em ácido acético 90% (v/v) e 2% (m/v) de PEO em ácido acético 50% (v/v), tensão aplicada foi de 18kV e distância entre o coletor e agulha de 20cm. A incorporação do PEO à matriz polimérica de quitosana se mostrou, então, uma estratégia eficaz para a obtenção de nanofibras por meio do processo de eletrofiação. Seguiu-se então o estudo para a incorporação do fármaco sulfato de neomicina à matriz eletrofiada, com a finalidade de ampliar a atividade antimicrobiana do filme obtido. Membranas na proporção 90/10 (v/v) de quitosana/PEO 4%/4% (m/v), assim como membranas na proporção 80/20 (v/v) quitosana/PEO 4%/2% (m/v) foram estudadas como suporte para a incorporação do fármaco. Quando o sulfato de neomicina foi incorporado junto a solução e submetido a eletrofiação, o diâmetro das fibras obtidas foram ainda menores, com média de 258nm. As membranas obtidas foram sujeitas a análises físico-químicas, as quais comprovarem a miscibilidade dos polímeros quitosana e PEO assim como confirmaram a incorporação do sulfato de neomicina à blenda. A atividade antimicrobiana para as membranas com fármaco e sem fármaco foi investigada contra bactérias Gram positivas e Gram negativas e os halos de inibição registrados foram maiores ou próximo ao controle, demonstrando uma alta capacidade antimicrobiana. O teste de liberação do sulfato de neomicina indicou que o mesmo apresenta um perfil de liberação rápido, sendo que com apenas 120 minutos grande parte do fármaco já havia se desprendido do filme polimérico. Diante disso, as membranas desenvolvidas nesse estudo sugerem ser promissoras candidatas para a aplicação como um biomaterial na cicatrização de feridas, sendo ainda necessários estudos de viabilidade celular.
Ridolfi, Daniela Missiani 1985. "Produção e caracterização de nanofibras de quitosana com nanocristais de celulose para aplicações biomédicas." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248938.
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química
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Resumo: Neste trabalho nanofibras de quitosana/poli (óxido de etileno) (PEO) (5:1) com nanocristais de celulose (NCC) foram produzidas com sucesso por eletrofiação e foi verificado o efeito da adição dos NCC nas propriedades das nanofibras obtidas. Os ensaios de eletrofiação foram realizados com amostras de NCC obtidas por hidrólise ácida. A eletrofiação de soluções de quitosana, sem e com NCC, resultaram na formação de muitas gotas (beads). Portanto, foi necessário adicionar o PEO nas soluções. Embora a adição de PEO tenha favorecido a formação de fibras, as soluções de quitosana/PEO sem NCC geraram também gotas enquanto que as soluções de quitosana/PEO contendo NCC resultaram em fibras uniformes. As soluções de quitosana/PEO com NCC apresentaram maior viscosidade em relação à solução sem NCC, o que pode ter favorecido a formação de fibras uniformes. As soluções de quitosana/PEO contendo 10% (m/m) de NCC produziram fibras mais finas em relação às soluções com 5% (m/m) de NCC provavelmente devido à maior condutividade da solução. Análises termogravimétricas mostraram que os NCC interferem na decomposição do PEO, mas sem prejudicar o desempenho do material. As nanofibras de quitosana/PEO contendo NCC apresentaram menor cristalinidade em relação às nanofibras sem NCC. Resultados de ensaios com células em culturas de fibroblastos 3T3 mostraram que as nanofibras de quitosana/PEO (com 10% de NCC) promoveram a adesão celular e mantiveram a morfologia celular característica o que sugere um potencial dessas nanofibras para aplicações em engenharia de tecidos
Abstract: In this work chitosan/ poly (ethylene oxide) (PEO) (5:1) nanofibers with cellulose nanocrystals (CNC) were successfully produced by the electrospinning technique and the effect of the addition of CNC on the nanofibers properties was evaluated. The electrospinning assays were performed with samples of CNC obtained by acid hydrolysis. The electrospinning of chitosan solutions, with and without CNC, resulted in the formation of many drops (beads). Therefore, it was necessary to add PEO on solutions. Although the PEO addition has favored the fiber formation, the chitosan/PEO solutions without CNC showed beads while chitosan/PEO solutions with CNC resulted in uniform fibers. The chitosan/PEO solutions with CNC showed higher viscosity compared to the solution without CNC, which may have favored the formation of uniform fibers. Solutions of chitosan/PEO containing 10% (w/w) of CNC produced thinner fibers compared to solutions containing 5% (w/w) of CNC probably due the higher solution conductivity. Thermogravimetric analysis (TGA) showed that the CNC has an effect on the PEO decomposition, however, it does not impair the performance of the material. The chitosan/PEO nanofibers with CNC showed lower crystallinity compared the nanofibers without CNC. Results from cell assay in cultures of 3T3 fibroblasts showed that the chitosana/PEO nanofibers (with 10% of CNC) promoted cell attachment and maintained the characteristic cell morphology which suggests potential applications of these nanofibers in cell tissue engineering
Doutorado
Físico-Química
Doutora em Ciências
Sato, Tabata Do Prado. "Desenvolvimento de biomateriais à base de quitosana : matriz de fibras eletrofiadas para regeneração tecidual e de hidrogel coacervado para entrega controlada de fármaco /." São José dos Campos, 2019. http://hdl.handle.net/11449/191168.
Coorientador: Artur José Monteiro Valente
Banca: Bruno Vinícius Manzolli Rodrigues
Banca: Fernanda Alves Feitosa
Banca: Lafayette Nogueira Júnior
Banca: Eduardo Shigueyuki Uemura
Resumo: Os atuais avanços no desenvolvimento de biomateriais caminham para 2 áreas promissoras: a de regeneração tecidual e a de entrega controlada de fármacos. Assim, o presente estudo objetivou a síntese e caracterização de diferentes matrizes (fibras e hidrogel) à base de quitosana, a fim de se obter materiais biomiméticos para atuação em ambas áreas. Para regeneração, delineou-se a síntese de um arcabouço de fibras de quitosana com e sem cristais de nanohidroxiapatita onde, para isso, foram eletrofiadas soluções de quitosana (Ch) e de quitosana com nanohidroxiapatita (ChHa). Os espécimes de Ch apresentaram maior homogeneidade e maior diâmetro médio de fibras (690 ± 102 nm) que ChHa (358 ± 49 nm). No teste de viabilidade celular e na atividade da fosfatase alcalina não houve diferença estatística entre os grupos experimentais (Ch e ChHa), porém ambos diferiram do grupo controle (p < 0,001). Para o âmbito de liberação de fármacos, sintetizou-se, pela técnica de emulsão, dois tipos de hidrogéis: o primeiro, uma mistura da fase aquosa da solução de Ch (1 mL) e da solução de DNA (1 mL) (1:1) e o segundo, mistura da fase aquosa da solução de Ch (1 mL) e solução de Pectina (1 mL) (1:1). Ambas misturas foram realizadas em álcool benzílico (5 mL) com instrumento de dispersão de alto desempenho (31-34000 rpm min-1 por 5 min). Após a obtenção dos géis, 20mg de cada grupo foram imersos em uma solução aquosa de Própolis Verde (PV), na concentração de 70 μg/mL por 2 h e a cinética de liberação... (Resumo completo, clicar acesso eletrônico abaixo)
Current advances in biomaterial development are moving to 2 promising areas: tissue regeneration and controlled drug delivery. Thus, the present study aimed the synthesis and characterization of different matrices (fibers and hydrogel) based on chitosan, in order to obtain biomimetic materials for performance in both areas. For regeneration, the synthesis of a scaffold of chitosan fibers with and without nanohydroxyapatite crystals was delineated, where chitosan (Ch) and chitosan with hydroxyapatite (ChHa) solutions were electrospun. Ch specimens presented higher homogeneity and larger mean fiber diameter (690±102nm) than ChHa (358 ± 49nm). In the cell viability test and alkaline phosphatase activity there was no statistical difference between the experimental groups. (Ch and ChHa), but both differed from the control group (p < 0,001). For the drug release scope, two types of hydrogels were synthesized by the emulsion technique: the first, a mixture of the aqueous phase of Ch solution (1 mL) and DNA solution (1 mL) (1:1) and the second, mixture of the aqueous phase of the Ch solution (1mL) and Pectin solution (1 mL) (1:1). Both mixtures were performed in benzyl alcohol (5 mL) with high performance dispersion instrument (31-34000 rpm min-1 for 5 min). After obtaining the gels, 20mg from each group were immersed in an aqueous solution of Propolis Green (PV), at a concentration of 70 µg/mL for 2 h and the release kinetics of PV were analyzed at 25 and 37oC in water and artificial saliva. The obtained specimens were lyophilized and then physically-chemically characterized. The presence of pectin and DNA was confirmed by FTIR. PV sorption induced a significant modification of the gel surface. A phase separation was found between chitosan and DNA. Encapsulation efficiency did not change significantly between 25 and 37oC. The release kinetics in water or saliva presented a two-step mechanism. And the biological results...
Doutor
Paraboon, Jirapun. "Biomedical Application of Nanofiber." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1280928465.
Tung, Wing-tai, and 董永泰. "Preparation of electrospun chitosan fibres for Schwann cell-guided axonal growth." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208170.
published_or_final_version
Biochemistry
Master
Master of Philosophy
Bizarria, Maria Trindade Marques. "Montagem de equipamento, desenvolvimento, caracterização e aplicações médico-farmacológicas de nanofibras eletrofiadas à base de blendas de quitosana." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266809.
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química
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Resumo: A obtenção de nanofibras de polímeros biocompatíveis, baseadas em quitosana, bem como a montagem de equipamento capaz de produzi-las, foi o principal objeto deste trabalho. Com este propósito, buscou-se de início reunir os dispositivos eletrônicos e mecânicos indispensáveis à prática da eletrofiação e um equipamento básico, de baixo custo, mas funcional foi construído. Com base na literatura, o ácido acético glacial a 90% em água deionizada foi o solvente utilizado para preparo das soluções de quitosana. Para viabilizar o processo da produção das nanofibras pela técnica da eletrofiação utilizaram-se blendas de soluções de quitosana com soluções de outros polímeros biocompatíveis em vez de soluções de quitosana pura. Assim, blendas de soluções de quitosana com soluções aquosas do poli(óxido de etileno) - PEO , bem como, com soluções aquosas de Poli(álcool vinílico) - PVA, em diversas proporções, foram eletrofiadas. O Poli(óxido de etileno) mostrou superior desempenho, como auxiliar na fiação da quitosana, permitindo a obtenção de fibras com até 80% de quitosana, e com diâmetros inferiores àqueles obtidos com as blendas de soluções de quitosana/PVA. A adição de um eletrólito (NaCl) às soluções blendas de quitosana/PEO proporcionou um processo fácil ininterrupto, sendo assim, buscou-se um melhor entendimento sobre as propriedades das soluções da quitosana e do PEO que norteiam comportamentos mais ou menos favoráveis ao processo da eletrofiação, caracterizando-se essas soluções através de estudos de viscosidade, de medidas de tensão superficial e de condutividade elétrica. A morfologia das fibras obtidas foi caracterizada por microscopia eletrônica de varredura (MEV) e, as propriedades térmicas, das membranas nanoestruturadas resultantes da eletrofiação das soluções de Quitosana/PEO, foram avaliadas por análise termogravimétrica (TGA) e calorimetria diferencial exploratória (DSC). A biocompatibilidade das membranas com teor de quitosana mais elevado (80% quitosana/20% PEO) foi avaliada através de testes de citotoxicidade in vitro, biocompatibilidade in vivo e adesão e crescimento celular in vitro. Adicionalmente, foram conduzidos experimentos visando avaliar o desempenho destas mesmas membranas como carreadoras de fármacos sendo que, a incorporação de nanopartículas de prata (AgNPs), bem como de digluconato de clorexidina apresentaram resultados promissores
Abstract: The development of biocompatible polymer nanofibers based on chitosan and the design and assembly of equipment capable of producing them were the main objectives of this work. For this purpose, the basic electronic and mechanical devices were obtained and a low-cost functional electrospinning setup was built. Based on the literature, glacial acetic acid with concentration of 90% in deionized water was the solvent used to prepare the chitosan solutions. In order to enable the nanofiber production by electrospinning, blends of chitosan solutions with other biocompatible polymers were used instead of pure chitosan solutions. Thus, blends of chitosan solutions with aqueous solutions of poly (ethylene oxide) PEO as well as with aqueous solutions of poly (vinyl alcohol) PVA, in various proportions, were electrospun. The PEO presented superior performance as an aid to obtain chitosan fibers, resulting in fibers with up to 80% of chitosan, and with smaller diameters than those obtained with solutions of blends of chitosan / PVA. The addition of an electrolyte (NaCl) to the chitosan/PEO solution blends has provided an easy and uninterrupted process. Thus, to obtain a better understanding about the properties of chitosan and PEO solutions that lead to more or less favorable behaviors to the electrospinning process, these solutions were characterized by performing viscosity studies and measurements of surface tension and electrical conductivity. The morphology of the fibers was evaluated by scanning electron microscopy (SEM) and the thermal properties of nanostructured membranes resulting from electrospinning of chitosan/PEO solutions were evaluated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC).The biocompatibility of the higher-content-chitosan membranes (80%chitosan /20% PEO) was evaluated by tests of in vitro cytotoxicity, in vivo biocompatibility and in vitro cell adhesion and growth. In addition, experiments were conducted to evaluate the performance of the same membrane as a carrier of drugs. In this way, the incorporation of silver nanoparticles (AgNPs) and chlorhexidine digluconate showed promising results
Doutorado
Ciencia e Tecnologia de Materiais
Doutor em Engenharia Química
Book chapters on the topic "Nanofibres of chitosan":
Gadkari, Rahul, Wazed Ali, Apurba Das, and R. Alagirusamy. "Scope of Electrospun Chitosan Nanofibrous Web for its Potential Application in Water Filtration." In Chitosan, 431–51. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119364849.ch16.
Murali, Vishnu Priya, and Priyadarshan Sundararaju. "Chitosan Nanofibers in Regenerative Medicine." In Advances in Polymer Science, 29–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/12_2021_91.
Ifuku, Shinsuke, Makoto Anraku, and Kazuo Azuma. "Preparation of Chitin Nanofiber and Its Derivatives from Crab Shell and Their Efficient Biological Properties." In Chitosan for Biomaterials III, 301–18. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/12_2021_87.
Kossovich, L. Y., Y. Salkovskiy, and I. V. Kirillova. "Electrospun Chitosan Nanofiber Materials as Burn Dressing." In IFMBE Proceedings, 1212–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14515-5_307.
Rošic, R., P. Kocbek, S. Baumgartner, and J. Kristl. "Electrospun Chitosan/Peo Nanofibers and Their Relevance in Biomedical Application." In IFMBE Proceedings, 1296–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23508-5_335.
Pervez, Md Nahid, George K. Stylios, Yingjie Cai, Shadi Wajih Hasan, Tiziano Zarra, Vincenzo Belgiorno, and Vincenzo Naddeo. "Water-Soluble Chitosan Nanofibrous Membranes for Efficient Dye Removal." In Advances in Science, Technology & Innovation, 213–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-00808-5_49.
Shariatinia, Zahra, and Iraj Kohsari. "Fabrication of Antibacterial Electrospun Chitosan-Polyethylene Oxide Nanocomposite Nanofibrous Mats." In Eco-friendly and Smart Polymer Systems, 19–22. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45085-4_5.
Qurashi, Ahsanulhaq. "Chitin and Chitosan Polymer Nanofibrous Membranes and Their Biological Applications." In Handbook of Bioplastics and Biocomposites Engineering Applications, 357–70. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118203699.ch13.
Kurashina, Masashi, Daiki Kato, Haoyuan Li, Keita Shiba, Yuta Morishita, Kazuki Shibata, Ho Hong Quyen, and Mikito Yasuzawa. "Synthesis of N-Methyl-D-Glucamine Modified Chitosan Nanofibers for Boron Adsorption." In Springer Proceedings in Physics, 31–35. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7153-4_4.
Sofi, Hasham S., Nisar Ahmad Khan, and Faheem A. Sheikh. "Smart Biomaterials from Electrospun Chitosan Nanofibers by Functionalization and Blending in Biomedical Applications." In Application of Nanotechnology in Biomedical Sciences, 51–73. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5622-7_4.
Conference papers on the topic "Nanofibres of chitosan":
Rijal, Nava P., Udhab Adhikari, and Narayan Bhattarai. "Magnesium Incorporated Polycaprolactone-Based Composite Nanofibers." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53090.
Tayerani, Ehsan, Seyyed Mohammad Ghoreishi, Neda Habibi, Laura Pastorino, and Carmelina Ruggiero. "Electrospun chitosan nanofibers for tissue engineering." In 2014 IEEE 14th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2014. http://dx.doi.org/10.1109/nano.2014.6968179.
Rupiasih, Ni Nyoman, Ria Yuliani, Dewa Ayu Pranastia, Made Sumadiyasa, Wayan Supardi, I. Made Sukadana, and Maykel Manawan. "PVA/Chitosan Composite Electrospun Nanofiber Membranes for Wound Dressing and Antibacterial Efficacy." In The 4th International Conference on Science and Technology Applications. Switzerland: Trans Tech Publications Ltd, 2023. http://dx.doi.org/10.4028/p-64xk11.
Mak, Eva Yi-Wah, and Wallace Woon-Fong Leung. "Novel Nanofibrous Scaffold to Improve Wound Healing." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64223.
Riwu, Yonas Ferdinand, Fames Humala Putra Loi, Ahmad Kusumaatmaja, Roto, and Kuwat Triyana. "Effect of Chitosan concentration and heat treatment on electrospun PVA/Chitosan nanofibers." In TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES. Author(s), 2016. http://dx.doi.org/10.1063/1.4958585.
Kang, Yun Mi, Jae Hoon Ko, E. Sle Kim, Gyeong Hae Kim, Goh Woon Park, Young Hwan Park, Byoung Hyun Min, Bong Lee, Jae Ho Kim, and Moon Suk Kim. "Electrospun chitosan nanofiber for tissue engineering." In 2010 IEEE 3rd International Nanoelectronics Conference (INEC). IEEE, 2010. http://dx.doi.org/10.1109/inec.2010.5425166.
Bezir, Nalan Çiçek, Bilal Bozkurt, Atilla Evcin, Burcu Özcan, Esengül Kır, Gökhan Akarca, and Ozan Ceylan. "Enhanced antibacterial activity of silver-doped chitosan nanofibers." In TURKISH PHYSICAL SOCIETY 35TH INTERNATIONAL PHYSICS CONGRESS (TPS35). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5135401.
Mahatmanti, F. Widhi, Ella Kusumastuti, and Nanik Wijayati. "Electrospinning of chitosan/PVA nanofibers: Preparation and characterization." In INTERNATIONAL CONFERENCE ON APPLIED COMPUTATIONAL INTELLIGENCE AND ANALYTICS (ACIA-2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0125932.
Cin, Gunseli Turgut, Seda Demirel Topel, Neslihan Nohut Maslakci, Esin Eren, and Aysegul Uygun Oksuz. "Plasma modified chitosan/N-acetyl-2-pyrazoline derivative nanofibers." In 2015 IEEE International Conference on Plasma Sciences (ICOPS). IEEE, 2015. http://dx.doi.org/10.1109/plasma.2015.7179648.
Liang, J. I., H. C. Hsu, Y. H. Nien, F. C. Su, H. W. Wu, J. P. Chen, and M. L. Yeh. "Cell response to Electrospun PVA and PVA/Chitosan nanofibers." In 2009 IEEE 35th Annual Northeast Bioengineering Conference. IEEE, 2009. http://dx.doi.org/10.1109/nebc.2009.4967779.
Reports on the topic "Nanofibres of chitosan":
Cabrera, Anahi Maldonado, Blayra Maldonado Cabrera, Dalia Isabel Sánchez Machado, and Jaime López Cervantes. Wound healing therapeutic effect of chitosan nanofibers: a systematic review and meta- analysis of animal studies. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, October 2022. http://dx.doi.org/10.37766/inplasy2022.10.0121.