Home > News > So, near and yet so far: Stable HGNs for Raman
April 1st, 2015
So, near and yet so far: Stable HGNs for Raman
Abstract:
Researchers have found a way to stabilise hollow gold nanospheres (HGNs) so that their unique combination of properties can be utilised as nanotags more widely in Surface Enhanced Raman Spectroscopy (SERS) for biomedical applications.
Samantha Moreton, Karen Faulds and Duncan Graham of the University of Strathclyde, Glasgow, Neil Shand of the Defence Science and Technology Laboratory (DSTL) Porton Down, Salisbury, Wiltshire, UK and Matthew Bedics and Michael Detty of the University at Buffalo, The State University of New York, USA, suggest that HGNs with their thin gold shell and hollow interior are unique nanostructures. They exhibit surface plasmon resonance because the valence electrons will oscillate collectively if an electric field is applied. This phenomenon depends sensitively on the size and shape of the nanoparticles as well as their homogeneity and can be followed using extinction spectroscopy, the team reports in the Royal Society of Chemistry journal Nanoscale. Moreover, careful preparation of HGNs allows the SPR to be tuned to near-infrared wavelengths, viz. from 550 to 1320 nanometres.
Source:
spectroscopynow.com
Bookmark:
| Related News Press |
News and information
Quantum computer improves AI predictions April 17th, 2026
Flexible sensor gains sensitivity under pressure April 17th, 2026
A reusable chip for particulate matter sensing April 17th, 2026
Detecting vibrational quantum beating in the predissociation dynamics of SF6 using time-resolved photoelectron spectroscopy April 17th, 2026
Imaging
Simple algorithm paired with standard imaging tool could predict failure in lithium metal batteries August 8th, 2025
Announcements
A fundamentally new therapeutic approach to cystic fibrosis: Nanobody repairs cellular defect April 17th, 2026
UC Irvine physicists discover method to reverse ‘quantum scrambling’ : The work addresses the problem of information loss in quantum computing system April 17th, 2026
Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters
A fundamentally new therapeutic approach to cystic fibrosis: Nanobody repairs cellular defect April 17th, 2026
UC Irvine physicists discover method to reverse ‘quantum scrambling’ : The work addresses the problem of information loss in quantum computing system April 17th, 2026
Tools
Metasurfaces smooth light to boost magnetic sensing precision January 30th, 2026
From sensors to smart systems: the rise of AI-driven photonic noses January 30th, 2026
Japan launches fully domestically produced quantum computer: Expo visitors to experience quantum computing firsthand August 8th, 2025
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||