Microparticle
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. Quality Control for Lignin and Gelatin Microcapsules Loaded with Orange Essential Oil
Sustainable natural product-based microstructured systems and biopolymers are strong candidates for use in crop protection. Lignin and gelatin microcapsules loaded with orange essential oil were developed with spray-drying in order to enhance its potential. We evaluated the microparticle controlled release mechanisms, biological effects, structural and therm
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Cross-linked coacervates of cashew gum and gelatin in the encapsulation of pequi oil
RESUMO: O óleo de pequi é rico em compostos bioativos, os quais podem ser encapsulados para aumentar a proteção a fatores extrínsecos. A tecnologia de microencapsulamento, além de retardar a degradação do composto ativo, possibilita mascarar aromas e sabores indesejáveis. A coacervação complexa é uma técnica baseada na interação eletrostátic
Cienc. Rural. Publicado em: 13/12/2019
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3. Investigation and environmental analysis of samples from outbreak of toxoplasmosis at research institution in Londrina, Paraná, Brazil, 2016
Resumo O objetivo deste estudo foi relatar um surto de toxoplasmose humana em uma instituição de pesquisa em Londrina, Paraná, no período de dezembro de 2015 a fevereiro de 2016. Amostras de sangue de 26 indivíduos sintomáticos foram coletadas e o imunoensaio de quimioluminescência de micropartículas foi realizado para detectar IgM, IgG e teste de av
Rev. Bras. Parasitol. Vet.. Publicado em: 02/09/2019
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4. Evolution of hepatitis B serological markers in HIV coinfected patients: a case study
ABSTRACT OBJECTIVE To describe the evolution of serological markers among HIV and hepatitis B coinfected patients, with emphasis on evaluating the reactivation or seroreversion of these markers. METHODS The study population consisted of patients met in an AIDS Outpatient Clinic in São Paulo State, Brazil. We included in the analysis all HIV-infected and
Rev. Saúde Pública. Publicado em: 30/03/2017
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5. Prevalence of Trypanosoma cruzi/HIV coinfection in southern Brazil
Abstract Chagas disease reactivation has been a defining condition for acquired immune deficiency syndrome in Brazil for individuals coinfected with Trypanosoma cruzi and HIV since 2004. Although the first coinfection case was reported in the 1980s, its prevalence has not been firmly established. In order to know coinfection prevalence, a cross-sectional stu
Braz J Infect Dis. Publicado em: 2017-03
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6. Microparticles containing guaraná extract obtained by spray-drying technique: development and characterization
AbstractGuaraná (Paullinia cupana Kunth, Sapindaceae) is well known for its dietary and pharmaceutical potential, and the semipurified extract of guaraná shows antidepressant and panicolytic effects. However, the low solubility, bioavailability and stability of the semipurified extract limit its use as a component of pharmaceutical agents. Delivery of the
Rev. bras. farmacogn.. Publicado em: 2015-06
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7. Experimental study of micro-particle fouling under forced convective heat transfer
Particulate fouling studies of a hydrocarbon based suspension containing 2 µm alumina particles were performed in an annular heat exchanger having a hydraulic diameter of 14.7 mm. During fouling experiments, the classical asymptotical behavior was observed. It is shown that particle concentration, fluid velocity, and wall temperature have strong influences
Braz. J. Chem. Eng.. Publicado em: 2012-12
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8. Estudo da frequência e perfil epidêmico-sorológico da toxoplasmose ocular em pacientes atendidos no ambulatório de oftalmologia do hospital universitário onofre lopes no município de Natal, Rio Grande do Norte
A toxoplasmose, provocada pelo parasito intracelular Toxoplasma gondii, é uma das parasitoses mais prevalentes em todo o mundo. Nos humanos, a transmissão ocorre por meio das três formas evolutivas do parasito: oocistos, cistos tissulares e taquizoítos. Os felídeos, silvestres ou domésticos, são os hospedeiros definitivos. A forma ocular da toxoplasmo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2011
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9. HBV, HCV and HIV seroprevalence among blood donors in Istanbul, Turkey: how effective are the changes in the national blood transfusion policies?
The national blood transfusion policies have been changed significantly in recent years in Turkey. The purpose of this study was to determine the prevalence of HBV, HCV, and HIV in blood donors at the Red Crescent Center in Istanbul and to evaluate the effect of changes in the national blood transfusion policies on the prevalence of these infections. The scr
Brazilian Journal of Infectious Diseases. Publicado em: 2010-02
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10. Seroprevalence of hepatitis B and hepatitis C markers among children and adolescents in the south brazilian region: metropolitan area of Florianópolis, Santa Catarina
Hepatitis B and C are important causes of morbidity and mortality worldwide. In Brazil, according to the Ministry of Health, about 15% of population is infected by hepatitis B virus (HBV) and less than 1% by hepatitis C virus (HCV). Nevertheless, the age-specific prevalence of HBV and HCV markers remains unknown. This study aimed to determine the seroprevale
Brazilian Journal of Infectious Diseases. Publicado em: 2010-02
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11. Congenital toxoplasmosis: evaluation of serological methods for the detection of anti-Toxoplasma gondii IgM and IgA antibodies
A study was carried out to evaluate the presence of serological markers for the immunodiagnosis of the vertical transmission of toxoplasmosis. We tested the sensitivity, specificity and predictive values (positive and negative) of different serological methods for the early diagnosis of congenital toxoplasmosis. In a prospective longitudinal study, 50 infant
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-05
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12. Prevalência dos marcadores das hepatites B e C em adolescentes de Itajaí-SC
Infection by HBV and HCV is a worldwide public health problem, which infect and result in necrosis and inflammation in the liver. When the infection persists, contribute to progression liver cirrhosis and hepatocellular carcinoma. In Brazil, prevalence of HBV is moderate (2% to 7%), with low infection rate in Southern, middle rate in Northeast and Southeast,
Publicado em: 2009