Cellular Immobilization
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. NOVEL APPLICATION OF POROUS AND CELLULAR MATERIALS FOR COVALENT IMMOBILIZATION OF PEPSIN
Abstract Pepsin was immobilized via covalent bonds on different carriers: a silica gel carrier, acrylic beads, and a cellulose-based carrier - Granocel. All carriers were functionalized through the presence of -OH, -COOH, -NH2, or glycidyl groups on their surfaces. Three different cross-linkers were used for activation thereof. The results showed that Granoc
Braz. J. Chem. Eng.. Publicado em: 2016-06
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2. Surface characterization and osteoblast-like Cells culture on collagen modified PLDLA scaffolds
Surface modification techniques based on the grafting of chemical functional groups and immobilization of bioactive molecules have been used to improve biocompatibility and clinical performance of bioabsorbable scaffolds in tissue engineering and medicine regenerative applications. This study aimed at developing and characterizing a biomimetic surface to sti
Mat. Res.. Publicado em: 2014-12
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3. Estudo de proteínas relacionadas ao costâmero em secções longitudinais de músculo sóleo de ratas imobilizadas e reabilitadas pelo alongamento passivo manual intermitente / Study of costameric proteins in soleus muscle longitudinal sections of female rats immobilized and rehabilitated by intermittent passive manual stretching
The interface between sarcolemma and extracellular matrix in skeletal muscle tissue is constituted by specialized proteins that are responsible for the transversal and longitudinal forces transmission to the myofiber. Skeletal muscle adaptations to physiological and pathological forces, such as segmental immobilization and rehabilitation exercises, may contr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/06/2012
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4. Coabitação com um parceiro doente: avaliações das alterações neuroimunes e da forma de comunicação / Cohabitation with a sick cage mate: evaluations of neuroimune changes and of the way of communication
Several papers are showing relevant neuroimmune regulation and/or modulation during stress or diseases. The incorporation of biological and psychological models of humans conditions are of high relevance in neuroscience. Animals exhibit a variety of adaptative behaviors for communicating with conspecifics; communication between animals can be visual, tactile
Publicado em: 2010
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5. BIOCHEMICAL AND PHYSIOLOGICAL RESPONSES OF Cucumis sativus AND Avena sativa TO EXCESS ALUMINUM STRESS. / RESPOSTAS BIOQUÍMICAS E FISIOLÓGICAS DE Cucumis sativus E Avena sativa AO ESTRESSE CAUSADO POR ALUMÍNIO
Aluminum (Al) is the most abundant metal in the Earth s crust, affecting growth and development of plants. The aim of this study was to investigate the effects of Al on seedlings of cucumber (Cucumis sativus L.) and oat (Avena sativa L) through the analysis of biochemical and physiological parameters. Three different genotypes of oat seedlings were studied,
Publicado em: 2010
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6. Evaluation of the viability of fungi encapsulated and stored at different temperatures / AVALIAÃÃO DA VIABILIDADE DE FUNGOS ENCAPSULADOS E ARMAZENADOS EM DIFERENTES TEMPERATURAS
Cellular immobilization represents an alternative for the bioprocess conduction, where the cells are kept in a matrix and can be used over long periods. This work was conducted with the objective to test a fungi immobilization methodology with reduced cost, to evaluate the viability of these fungi when submitted to the new encapsulation method, and to determ
Publicado em: 2009
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7. Avaliação da recuperação da cartilagem articular do tornozelo de ratos após aplicação de um protocolo de alongamento cíclico da musculatura posterior da perna após imobilização
Objective: To evaluate the recovery of ankle articular cartilage of rats after applying unilateral cyclic passive muscle stretching protocol in previously hindlimb immobilization. Methods: fourty Wistar rats were divided in seven groups: C- control; I- immobilized ; RI- seven weeks recovery after immobilization; S- Stretched; RS- seven weeks recovery after s
Publicado em: 2008
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8. Caracterização de enzimas bacterianas de degradação de hidrocarbonetos aromáticos policíclicos / Characterization of bacterial enzymes of aromatic polycyclic hydrocarbons degradation
The polycyclic aromatical hydrocarbons (HAPs) are mutagenic and carcinogenic composites to the human beings and the animals that are introduced in the environment in great amounts, to its activities related to the extraction, the transport, the refining, the transformation and the use of the oil and of its derivatives. The enzyme use for the biodegradation H
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2008
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9. BioproduÃÃo de metabÃlitos de Canoparmelia texana (Tuck.) Elix &Half a partir de imobilizaÃÃo celular
Este estudo teve como objetivo produzir metabÃlitos de Canoparmelia texana (Tuck.) Elix &Hale a partir da imobilizaÃÃo de cÃlulas e fragmentos do talo in natura, atravÃs do uso de biorreatores com sistema fixo (tradicional), em movimento, e sob fluxo contÃnuo. CÃlulas extraÃdas de C. texana, ou fragmentos do talo foram imobilizados, separadamente, em
Publicado em: 2007
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10. 18 production of glicosiltransferase of klebsiella sp and otimização of the process of conversion of sacarose in isomaltulose. / Produção de glicosiltransferase de Klebsiella sp 18 e otimização do processo de conversão de sacarose em isomaltulose.
The strain Klebsiella sp 18 produces glucosyltransferase, an enzyme that converts sucrose in isomaltulose. This sugar is not cariogenic and it is naturally found in small amounts in honey and sugar cane. Isomaltulose has been used as an alternative sugar in food production. The optimization of culture medium for the production of glucosyltransferase by Klebs
Publicado em: 2004
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11. ProduÃÃo do Ãcido Ãsnico de Cladonia substellata vainio (lÃquen) por imobilizaÃÃo celular, utilizando diferentes mÃtodos
Este estudo teve como objetivo produzir os metabÃlitos de Cladonia substellata Vainio. atravÃs do uso de biorreatores com sistema em repouso (tradicional), com movimento e sob fluxo contÃnuo (inÃditas). Os biorreatores foram montados utilizando caulinita como matriz de enclausuramento e acetato de sÃdio a 0,1; 1,0 e 10mM. No sistema em repouso observou-
Publicado em: 2004
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12. Estudo da oxidação de etanol a acido acetico por celulas do genero Acetobacter livres e imobilizadas em geis hidrofilicos
In this work, the effects of biocatalysts preparation conditions on the behavior of ethanol oxidation process to acetic acid were studied and a cellular inoculum preparation method was developed. Experiments involving free and immobilized Acetobacter cells in hydrophilic gels containing k-carrageenan, sodium alginate or citric pectin on their composition wer
Publicado em: 1991