Gold Nanorods
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Gold Nanorods Capped with Different Ammonium Bromide Salts on the Catalytic Chemical Reduction of p-Nitrophenol
It is known that the reactivity of the nanocatalytic systems is related to the particle size and shape and also to the features of the capping agents on the nanostructures. In this study, gold nanorods (AuNRs) were synthesized by the seed-mediated method using different tetra-alkylammonium bromide salts as capping agents, that are, cetyltrimethylammonium (CT
J. Braz. Chem. Soc.. Publicado em: 2021-06
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2. New Strategy for Streptavidin Detection Using AuNRs/PAAm Hydrogel Composites
Localized surface plasmon resonance (LSPR) is a collective oscillation of free electrons induced by the incident light in nanometric surfaces of conductive materials. Gold nanorods (AuNRs) have been studied for plasmonic devices due to their anisotropic properties. Herein, we report the construction of a specific biosensor using polyacrylamide (PAAm) as the
J. Braz. Chem. Soc.. Publicado em: 2020-09
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3. BIOSSENSORES PLASMÔNICOS BASEADOS EM ESPALHAMENTO RAMAN INTENSIFICADO POR SUPERFÍCIE UTILIZANDO NANOBASTÕES DE OURO
There is still a significant need for low cost, fast and trustworthy diagnostic devices based on biosensors, which may impact positively for applications in developing countries. Localized surface plasmon resonance (LSPR) based biosensors have been taken as powerful alternative to deal with the above limitations. The local electromagnetic field enhancement c
Quím. Nova. Publicado em: 05/12/2019
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4. Influencia del ácido ascórbico en el crecimiento de nanorods de oro con banda de plasmón longitudinal en el infrarrojo cercano-NIR
ABSTRACT The present work reports the ascorbic acid effect (0,60-0,98 µM) on the aspect ratio (AR) of gold nanorods with bands of longitudinal plasmon (LP) in the near infrared (958 -1085 nm), grown by seed-mediated chemical route. Cloroauric acid-1mM as precursor agent was used, obtained from a stock solution prepared by dissolving metallic gold (99,99%) i
Matéria (Rio J.). Publicado em: 16/09/2019
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5. USO DE NANOBASTÕES DE OURO PARA O DESENVOLVIMENTO DE AULAS PRÁTICAS DE NANOTECNOLOGIA
A gold nanoparticles functionalization experiment was conducted in a biotechnology summer course at UFOP as a model for the introduction of the laboratory practice in nanotechnology for postgraduate courses in the areas of chemistry and biotechnology. The gold nanorods were synthesized by the seed method and then, functionalized with anti-IL-6 antibodies usi
Quím. Nova. Publicado em: 2017-06
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6. Recubrimiento controlado de sustratosde vidrio con nanobastones metálicos
ABSTRACTMonodispersed gold nanorods were synthesized with efficiency above 80% of all nanoparticles, characterized by longitudinal plasmon resonance around 800 nm. Glass substrates were surface modified and covered with the synthesized nanorods with control of surface density. Coverage dynamics was monitored through extinction spectra, and a saturation maxim
Matéria (Rio J.). Publicado em: 2015-09
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7. Ablação tumoral fototérmica in vivo utilizando nanobarras de ouro / Photothermal tumor ablation in vivo using gold nanorods
Ultimamente têm-se buscado tratamentos menos invasivos para o câncer, como os que utilizam campos magnéticos ou luz, e dentre esses últimos, aqueles que fazem uso de materiais, geralmente metálicos, com propriedade de ressonância plasmônica de superfície. O tratamento hipertérmico encaixa-se neste perfil e já apresenta resultados promissores com na
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2012
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8. SÃntese, dinÃmica de formaÃÃo, caracterizaÃÃo e propriedades Ãpticas de nanobastÃes de ouro dispersos em meio aquoso e matrizes orgÃnicas / Synthesis, characterization, dynamic formation and optical properties of gold nanorods dispersed in aqueous phase and organic matrices
Neste trabalho, diferentes colÃides contendo nanobastÃes de ouro dispersos em diferentes matrizes lÃquidas foram preparados a partir do Ãcido tetracloroÃurico (HAuCl4), em presenÃa de um agente redutor adequado, atravÃs do mÃtodo mediado por sementes. O brometo de cetiltrimetilamÃnio (CTAB) foi empregado como agente direcionador de crescimento. A va
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/04/2010