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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Nanostructured Assemblies of Gold and Silver Nanoparticles for Plasmon Enhanced Spectroscopy Using Living Biotemplates

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Author(s):
Kubo, Andressa M. [1] ; Gorup, Luiz F. [1] ; Toffano, Leonardo [1] ; Amaral, Luciana S. [1] ; Rodrigues-Filho, Edson [1] ; Mohan, Haider [2] ; Aroca, Ricardo [2] ; Camargo, Emerson R. [1]
Total Authors: 8
Affiliation:
[1] UFSCar Fed Univ Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Windsor, Dept Chem & Biochem, Windsor, ON N9B 3P4 - Canada
Total Affiliations: 2
Document type: Journal article
Source: COLLOIDS AND INTERFACES; v. 1, n. 1 DEC 2017.
Web of Science Citations: 2
Abstract

The ability to control the assembly of nanoparticles on substrates used in plasmon-enhanced spectroscopy continues to drive research in the field of nanofabrication. Here we describe the use of fungi as soft biotemplates to fabricate nanostructured microtubules with gold and gold-silver nanoparticles with potential applications as sensors and biosensors. In the first step, spores of the filamentous fungus Cladosporium sphaerospermum were inoculated in a suspension of gold nanoparticles, forming stable microtubules of gold nanoparticles during fungus growth. These materials were exposed to a second suspension of silver nanoparticles, resulting in complexes multilayers structures of gold and silver nanoparticles, which were evaluated as substrates for surface-enhanced Raman scattering (SERS) using small amounts of thiophenol as probe molecules directly on the microtubules. Both gold and the gold-silver substrates provide the SERS effect. (AU)

FAPESP's process: 15/13958-3 - Nanocomposite biomaterials based on thermoresponsive HIDROGELS
Grantee:Emerson Rodrigues de Camargo
Support type: Regular Research Grants
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC