Synthesis, Characterization, and Antimicrobial Activity of Near-IR Photoactive Functionalized Gold Multibranched Nanoparticles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913999" target="_blank" >RIV/60461373:22310/17:43913999 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22330/17:43913999

Result on the web

<a href="http://onlinelibrary.wiley.com/doi/10.1002/open.201600159/pdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/open.201600159/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/open.201600159" target="_blank" >10.1002/open.201600159</a>

Result language

angličtina

Original language name

Synthesis, Characterization, and Antimicrobial Activity of Near-IR Photoactive Functionalized Gold Multibranched Nanoparticles

Original language description

Surface-modified gold multibranched nanoparticles (AuMs) were prepared by simple chemical reduction of gold chloride aqueous solution followed by insitu modification by using water-soluble arenediazonium tosylates with different functional organic groups. Chemical and morphological structures of the prepared nanoparticles were examined by using transmission electron and scanning electron microscopies. The covalent grafting of organic compounds was confirmed by scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX) and Raman spectroscopy techniques. Covalent functionalization of nanoparticles significantly expands the range of their potential uses under physiological conditions, compared with traditional non-covalent or thiol-based approaches. The antibacterial effect of the surface-modified AuMs was evaluated by using Escherichia coli and Staphylococcus epidermidis bacteria under IR light illumination and without external triggering. Strong plasmon resonance on the AuMs cups leads to significant reduction of the light power needed kill bacteria under the mild conditions of continuous illumination. The effect of the surface-modified AuMs on the light-induced antibacterial activities was founded to be dependent on the grafted organic functional groups.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ChemistryOpen

ISSN

2191-1363

e-ISSN

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Volume of the periodical

6

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

7

Pages from-to

254-260

UT code for WoS article

000399452900015

EID of the result in the Scopus database

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