alexa BIMENS-Bimetallic Nanostars (Ag@Au) With High Surface Enhanced Raman Scattering (SERS) Performance: Detection Of β-amyloid And Its Marker Thioflavin T
ISSN: 2157-7439

Journal of Nanomedicine & Nanotechnology
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

4th International Conference on Nanotek & Expo
December 01-03, 2014 DoubleTree by Hilton Hotel San Francisco Airport, USA

Jose V Garcia-Ramos, A Garcia-Leis and S Sanchez-Cortes
ScientificTracks Abstracts: J Nanomed Nanotechnol
DOI: 10.4172/2157-7439.S1.017
Abstract
Developing new synthesis methods to obtain metal nanoparticles (NPs) with three dimensional (3D) surface morphology is very important, due to their physical properties and versatility to diversify their applications. Anisotropic metal NPs with a large variety of sizes and shapes have been recently fabricated displaying good Surface-enhanced Raman Scattering (SERS) properties. In this context, star-shaped NPs or metal nanostars (NS) have shown extraordinary properties in the intensification of the Electro Magnetic field, with promising applications in bioimaging and detection. In this context, [email protected] shell nanoparticles display advantageous properties to be used as SERS substrates. This work was aimed at the fabrication of [email protected] NS by using AgNS as seeds by simple methods with high effectiveness in SERS and without the use of strong surfactants. The NS synthesis was carried out by chemical reduction using neutral hydroxylamine and citrate to obtain the AgNS, described in a former article, as seeds for further coating with gold and finally obtain the bimetallic ([email protected]) nanostars. Then, they were applied in the detection of β-amyloid and its marker thioflavin T (ThT) both in resonant and non-resonant conditions. TEM micrographies of the final morphology of [email protected] using AgNS as seeds are shown. For ThT, Plasmon Resonance and SERS spectra excited at 532 and 785 nm, corresponding to resonant and non resonant conditions are obtained. Our SERS results suggest that at these conditions there is a mixture of two different species: the directly adsorbed ThT one (ϕ=90˚) and another structure, ThT (ϕ=37˚).
Biography
Jose V Garcia-Ramos received his PhD Degree in Chemistry from the Universidad Complutense de Madrid and did his post-doctoral work at the University of Bologna (Italy). He is Research Professor of the Consejo Superior de Investigaciones Cientificas (CSIC) and has held several directorial positions in that Institution where he became Deputy Vice-president from 2008 till 2012. He has published more than 170 papers in reputed journals. Most of his work has dealt with different aspects of vibrational spectroscopy especially those related with Surface enhanced Raman and IR Spectroscopies (SERS and SEIR).
image PDF   |   image HTML
 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version