Mnp
Mostrando 1-12 de 123 artigos, teses e dissertações.
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1. A New Approach for Histamine Functionalized Nanoparticles as Sorbent Phase for Bar Adsorptive Microextraction (BAµE) and Determination of Parabens in Water by HPLC-DAD
In this study, for the first time, histamine-functionalized magnetic nanoparticles (HIS-MNP) were used as sorbent phase combined with bar adsorptive microextraction (BAµE) for the determination of methylparaben (MP), ethylparaben (EP), propylparaben (PP), and butylparaben (BP) in water samples by high performance liquid chromatography coupled with diode arr
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Efeito da somatotropina bovina recombinante (rbST) na produção in vivo e na maturação in vitro de oócitos bovinos da raça Sindi
RESUMO A fim de avaliar o efeito de diferentes doses da rbST sobre a dinâmica folicular, a produção e a maturação in vitro de oócitos, 20 vacas Sindi, divididas em três grupos, receberam um dispositivo de progesterona intravaginal, estradiol e PGF2α, além de 2mL de solução salina (grupo controle), 250 (grupo rbST 250) ou 500mg de rbST (grupo rbST
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2020-01
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3. A Self-Assembled AMF-Responsive Nanoplatform Based on Pillar[5]arene and Superparamagnetic Nanoparticles for Controlled Release of Doxorubicin
An alternating magnetic field (AMF)-stimuli responsive nanodevice based on magnetic nanoparticles (MNP) functionalized with water-soluble carboxylate-substituted pillar[5]arene (CP[5]A), namely MNP-CP[5]A, as a multiplatform for cancer treatment has been designed. MNP-CP[5]A was loaded with doxorubicin (DOX), showing a loading capacity of 9.5 mg g-1. The nan
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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4. Ligninolytic fungus Polyporus sp. S133 mediated metabolic degradation of fluorene
ABSTRACT This study aimed to investigate the impact of nonionic surfactants on the efficacy of fluorine degradation by Polyporus sp. S133 in a liquid culture. Fluorene was observed to be degraded in its entirety by Polyporus sp. S133 subsequent to a 23-day incubation period. The fastest cell growth rate was observed in the initial 7 days in the culture that
Braz. J. Microbiol.. Publicado em: 2016-09
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5. Preliminary studies of new strains of Trametes sp. from Argentina for laccase production ability
Abstract Oxidative enzymes secreted by white rot fungi can be applied in several technological processes within the paper industry, biofuel production and bioremediation. The discovery of native strains from the biodiverse Misiones (Argentina) forest can provide useful enzymes for biotechnological purposes. In this work, we evaluated the laccase and manganes
Braz. J. Microbiol.. Publicado em: 2016-06
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6. New aminoporphyrins bearing urea derivative substituents: synthesis, characterization, antibacterial and antifungal activity
This work studied the synthesis of 5,10,15-tris(4-aminophenyl)-20-(N,N-dialkyl/diaryl-N-phenylurea) porphyrins (P1-P4 with alkyl or aryl groups of Ph, iPr, Et and Me, respectively) and also the preparation of their manganese (III) and cobalt (II) complexes (MnP and CoP). The P1-P4 ligands were characterized by different spectroscopic techniques (1H NMR, FTIR
Braz. arch. biol. technol.. Publicado em: 2015-06
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7. Eficiência de wetland com macrófitas aquáticas flutuantes dispostas em serie para o tratamento do efluente do cultivo de camarão
Neste estudo foi avaliada a eficiência de uma wetland povoada com Eichhornia crassipes e Salvinia molesta para o tratamento do efluente de um viveiro de manutenção de reprodutores do camarão-da-malásia (Macrobrachium rosenbergii). Um experimento totalmente casualizado foi realizado em 9 tanques retangulares (1,6 m3) com 3 tratamentos (wetlands construí
Braz. J. Biol.. Publicado em: 2014-11
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8. Synthesis and characterization of Fe3O4 nanoparticles with perspectives in biomedical applications
Nowadays the use of magnetic nanoparticles (MNP) in medical applications has exceeded expectations. In molecular imaging, MNP based on iron oxide coated with appropriated materials have several applications in vitro and in vivo studies. For applications in nanobiotechnology these MNP must present some characteristics such as size smaller than 100 nanometers,
Mat. Res.. Publicado em: 29/04/2014
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9. Aflatoxin detoxification by manganese peroxidase purified from Pleurotus ostreatus
Manganese peroxidase (MnP) was produced from white rot edible mushroom Pleurotus ostreatus on the culture filtrate. The enzyme was purified to homogeneity using (NH4)2SO4 precipitation, DEAE-Sepharose and Sephadex G-100 column chromatography. The final enzyme activity achieved 81UmL-1, specific activity 78 U mg-1 with purification fold of 130 and recovery 1.
Braz. J. Microbiol.. Publicado em: 11/04/2014
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10. Halotolerance, ligninase production and herbicide degradation ability of basidiomycetes strains
Fungi have been recently recognized as organisms able to grow in presence of high salt concentration with halophilic and halotolerance properties and their ligninolytic enzyme complex have an unspecific action enabling their use to degradation of a number of xenobiotic compounds. In this work, both the effect of salt and polyols on growth of the basidiomycet
Braz. J. Microbiol.. Publicado em: 25/02/2014
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11. Expression of manganese peroxidase by Lentinula edodes and Lentinula boryana in solid state and submerged system fermentation
A produção de etanol a partir de biomassa lignocelulósica é referida como uma segunda geração de biocombustíveis, sendo que este processo é uma das mais promissoras tecnologias em fase de desenvolvimento. Poucas são as pesquisas disponíveis sobre o uso de enzimas produzidas por fungos como ativos para biodegradação de biomassa lignocelulósica. N
An. Acad. Bras. Ciênc.. Publicado em: 2013-09
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12. Estudo das agressões por cães, segundo tipo de interação entre cão e vítima, e das circunstâncias motivadoras dos acidentes, município de São Paulo, 2008 a 2009
Caracterizaram-se as agressões por cães, o perfil das vítimas e dos agressores e as circunstâncias desses acidentes. Calculou-se a amostra aleatória a partir de 20 mil notificações/ano de agressões por cães e realizaram-se 594 entrevistas telefônicas. A maior frequência de agressões ocorreu no sexo masculino, faixa etária de cinco a 14 anos. Les
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2013-08