alexa Photofunctional Organic Nanoparticles
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)

Share This Page

Additional Info

Loading
Loading Please wait..
 

3rd International Conference on Nanotek & Expo
December 02-04, 2013 Hampton Inn Tropicana, Las Vegas, NV, USA

Hiroshi Yao
ScientificTracks Abstracts: J Nanomed Nanotechnol
DOI: 10.4172/2157-7439.S1.013
Abstract
Photofunctional organic nanoparticles have inspired growing research interests because of their variability and flexibility in materials synthesis as well as high potentials in the application of optoelectronic devices. Covalent synthesis of such architectures is costly, so we have developed a new route for the synthesis of organic nanoparticles based on ion-association. This method utilizes the formation of water-insoluble ion-pair aggregates in aqueous phases by association of a chromophoric ion with a hydrophobic counterion to fabricate organic nanoarchitectures. We here report the synthesis/property of highly fluorescent organic dye nanoparticles with various particle sizes and colors based on ion association. A blue-fluorescent cyanine dye (BFD) is used as a photofunctional material for the nanoparticle synthesis. In comparison with the dye in water, the BFD nanoparticles show a significant increase in their fluorescence. The fluorescence also increases with a decrease in the nanoparticle size, resulting in a high quantum yield of about 0.8. The observed intense fluorescence is found to originate from a combined effect of restricted ?intramolecular? rotation and ?intermolecular? H-aggregation of BFD. Additionally, we combine a FRET (F?rster resonance energy transfer) concept with the ion-association approach to obtain photofunctional (fluorescent) organic nanoparticles having multi-color emission tunability. Upon addition of a dopant molecule in the BFD nanoparticle, the emission color changed from bluish to reddish or whitish. Note that the pure dopant exhibits red emission. We believe that organic nanoparticles of a binary dye system fabricated using the ion-association method is able to have tunable emission with high fluorescence quantum yields or ?mega? Stokes shift
Biography
Hiroshi Yao has earned his Ph.D. in Chemistry from Hokkaido University, Japan. He has been an Associate Professor of University of Hyogo since 1999. His current research interests include fabrications of metal (inorganic) or organic nanoparticles with interesting optical/chiroptical properties. He has published more than 100 papers in reputed journals and books.
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, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]m

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

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