Sba 15
Mostrando 49-60 de 63 artigos, teses e dissertações.
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49. Síntese e caracterização de nanocompósitos de sílica mesoporosa com partículas magnéticas para dispositivos de liberação controlada de fármacos
Ordered mesoporous materials like SBA-15 posses a network of channels and pores of well-defined size in the nanoscale range. This particular pore architecture makes them suitable for hosting a broad variety of compounds into the silica matrix, resulting in very promising material for a broad range of applications, including magnetic carriers for drug deliver
Publicado em: 2007
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50. Avaliação fisiológica da aroeira (Schinus terebinthifolius Raddi) sob déficit hídrico com vista para o reflorestamento.
This work aimed to study the effect of water deficit on gas exchange, leaf water potential, dry matter production, and some biochemical aspects of Schinus terebinthifolius Raddi. young plants. A research project was developed, under greenhouse conditions, at the Laboratório de Fisiologia Vegetal, Departamento of Biologia of Universidade Rural de Pernambuco
Publicado em: 2007
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51. Sistema de absorÃÃo de k+ de alta afinidade em plantas de sorgo forrageiro: papel da h+-atpase de membrana plasmÃtica e dos componentes sensÃvel e nÃo-sensÃvel ao Ãon nh4+ / System of absorption of k+ of high affinity in plants of sorgo forrageiro: paper of h+-atpase of plasmÃtica membrane and the components sensible and not-sensible to ion nh4+
O influxo de K+ na faixa de alta afinidade à controlado por transportadores dos tipos canal e carreador, os quais diferem na sua sensibilidade ao Ãon NH4 +. A atividade de ambos os componentes, nÃo-sensÃvel (canal) e sensÃvel (carreador) ao Ãon NH4 + dependem da enzima de membrana plasmÃtica, H+-ATPase. Objetivou-se a caracterizaÃÃo fisiolÃgica e m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/03/2006
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52. Materiais mesoporosos ordenados aplicados como sistemas para liberação controlada de drogas / Ordered mesoporous materials applied as drug delivery systems
In the last decade, progress in the development of nanosized hybrid therapeutics and drug delivery systems has been remarkable. Mesoporous materials such as SBA-15 and MCM-41 have been considered very promising materials for hosting and further delivery of biological agents within silica samples and for controlling their release kinetics from the matrix due
Publicado em: 2006
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53. Ordered mesoporous silica carrier system applied in nanobiothecnology
Recentes estudos conduziram à descoberta da sílica mesoporosa com estrutura hexagonal, que apresenta elevada área superficial (700 a 1000 m²/g), tamanho de poros grande (5 a 9 nm) e espessura fina de parede do poro (3,5 a 5,3 nm), chamado SBA-15. Essas características fazem destes materiais matrizes adequadas para a incorporação e liberação controla
Brazilian Archives of Biology and Technology. Publicado em: 2005-10
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54. Resistencia a união e padrão de condicionamento em esmalte de sistemas adesivos autocondicionantes aplicados de forma passiva ou ativa / Microtensile bond strength evaluation of self-etchiung adhesive systems on enamel
The aim of this study were evaluate the bond strength and conditioning pattern obtained from different self-etching adhesive systems applied on enamel by active and passive forms. 100 bovine incisors were sectioned in 6x6mm fragments from the buccal enamel surface. The specimens were divided into 10 groups (n= 1 O). It was used one single bottle adhesive sys
Publicado em: 2005
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55. Antibody Specificities and Effect of Meningococcal Carriage in Icelandic Teenagers Receiving the Norwegian Serogroup B Outer Membrane Vesicle Vaccine
Antibody specificities of pre- and postvaccination serum samples from 40 (53%) teenagers who received three doses of the Norwegian Neisseria meningitidis serogroup B vaccine (B:15:P1.7,16) during a previous trial in Iceland (Perkins et al., J. Infect. Dis. 177:683-691, 1998) were analyzed with serum bactericidal activity (SBA) and immunoblotting assays with
American Society for Microbiology.
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56. BRL-36650: in vitro studies and assessment of serum bactericidal activity after single-dose administration in volunteers.
Ten healthy volunteers received 1 g of BRL-36650, a new formamido-penicillin derivative, given by intravenous infusion over 15 min. Levels in serum were measured microbiologically 30, 60, and 120 min after the start of the 15-min infusion and were (mean +/- standard deviation) 102.7 +/- 28.4, 59.7 +/- 11.5, and 9.6 +/- 1.9 mg/liter, respectively. A total of
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57. Relative Immunogenicity of PorA Subtypes in a Multivalent Neisseria meningitidis Vaccine Is Not Dependent on Presentation Form
The hexavalent meningococcal vaccine HexaMen, containing six PorAs on two vesicles, was tested in clinical studies. Although fourfold increases in serum bactericidal activity (SBA) titers against all of the PorAs were observed, there were significant differences between PorA-specific SBA titers. SBA titers were mainly directed against one PorA from each vesi
American Society for Microbiology.
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58. Relationship between Serum Bactericidal Activity and Serogroup-Specific Immunoglobulin G Concentration for Adults, Toddlers, and Infants Immunized with Neisseria meningitidis Serogroup C Vaccines
A new meningococcal group C-CRM197 conjugate vaccine (MnCC; Meningitec) has been evaluated in multiple clinical trials in the United States and most recently has been approved for routine administration in the United Kingdom. Meningococcal serogroup C (MnC)-specific immunoglobulin G (IgG) antibodies in pre- and postimmunization sera obtained from healthy U.S
American Society for Microbiology.
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59. Quadrivalent Meningococcal Vaccination of Adults: Phase III Comparison of an Investigational Conjugate Vaccine, MenACWY-CRM, with the Licensed Vaccine, Menactra▿
Neisseria meningitidis is a leading cause of bacterial meningitis in the United States, with the highest case fatality rates reported for individuals ≥15 years of age. This study compares the safety and immunogenicity of the Novartis Vaccines investigational quadrivalent meningococcal CRM197 conjugate vaccine, MenACWY-CRM, to those of the licensed meningoc
American Society for Microbiology (ASM).
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60. Serum bactericidal activities and comparative pharmacokinetics of meropenem and imipenem-cilastatin.
The pharmacokinetics and serum bactericidal activities (SBAs) of imipenem and meropenem were investigated in a randomized crossover study. Twelve healthy male volunteers received a constant 30-min infusion of either 1 g of imipenem plus 1 g of cilastatin or 1 g of meropenem. The concentrations of the drugs in serum and urine were determined by bioassay and h