Home > News > Large Stokes-Shift Fluorescent Silica Nanoparticles with Enhanced Emission Over Free Dye for Single Excitation Multiplexing
September 11th, 2009
Large Stokes-Shift Fluorescent Silica Nanoparticles with Enhanced Emission Over Free Dye for Single Excitation Multiplexing
Abstract:
We describe a polycondensation reaction of silica precursors in a modified Stöber-type basic ethanol solution to produce graded Stokes-shift core-shell silica nanoparticles providing bright and spectrally multiplexed sets of fluorescent tags that are excitable using a single excitation source. Dynamic light scattering and scanning electron microscopy demonstrate particle sizes in the sub-10 nm regime. Absorption matched emission comparisons between encapsulated and free dyes in aqueous solution reveal about an order of magnitude per-dye brightness enhancements that are apparent by simply looking at the solutions under laser illumination conditions.
Source:
interscience.wiley.com
Bookmark:
| Related News Press |
News and information
Sensors innovations for smart lithium-based batteries: advancements, opportunities, and potential challenges August 8th, 2025
Deciphering local microstrain-induced optimization of asymmetric Fe single atomic sites for efficient oxygen reduction August 8th, 2025
Lab to industry: InSe wafer-scale breakthrough for future electronics August 8th, 2025
Nanomedicine
New molecular technology targets tumors and simultaneously silences two ‘undruggable’ cancer genes August 8th, 2025
New imaging approach transforms study of bacterial biofilms August 8th, 2025
Cambridge chemists discover simple way to build bigger molecules – one carbon at a time June 6th, 2025
Electrifying results shed light on graphene foam as a potential material for lab grown cartilage June 6th, 2025
Announcements
Sensors innovations for smart lithium-based batteries: advancements, opportunities, and potential challenges August 8th, 2025
Deciphering local microstrain-induced optimization of asymmetric Fe single atomic sites for efficient oxygen reduction August 8th, 2025
Japan launches fully domestically produced quantum computer: Expo visitors to experience quantum computing firsthand August 8th, 2025
ICFO researchers overcome long-standing bottleneck in single photon detection with twisted 2D materials August 8th, 2025
Nanobiotechnology
New molecular technology targets tumors and simultaneously silences two ‘undruggable’ cancer genes August 8th, 2025
New imaging approach transforms study of bacterial biofilms August 8th, 2025
Ben-Gurion University of the Negev researchers several steps closer to harnessing patient's own T-cells to fight off cancer June 6th, 2025
Electrifying results shed light on graphene foam as a potential material for lab grown cartilage June 6th, 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 |
||
|
|
||