Nanotechnology Now

• About Us
  
  • Advertising
  • Our Mission
  • Our Team
  • Comments
  • Friends
  • Contact
• Nanotechnology
• News
  
  • Current News
  • Press Releases
  • Submit Press
  • Press kit
  • Interviews
• Columns
• Products
  
  • Our Products
  • Books
  • Featured Books
• Directories
  
  • Companies/Academic
  • Events
  • Glossary
  • Best Of
• Career Center
• Nano-Social Network
• Nano Consulting
• My Account

Home > News > New coating enables quantum dots to penetrate cells

June 12th, 2007

New coating enables quantum dots to penetrate cells

Abstract:
In just the few years since their discovery, quantum dots have become an important tool for imaging events occurring on the outside of cells and for identifying specific molecules in "fixed" cells. Researchers have found it difficult, however, to use quantum dots for molecular imaging inside of living cells, largely because these fluorescent nanoparticles tend to clump together inside organelles such as endosomes and lysosomes. But by using a positively charged polymer coating, investigators at the Emory-Georgia Tech Nanotechnology Center for Personalized and Predictive Oncology have developed quantum dots that penetrate the cell membrane, break open endosomes and lysosomes, and avoid clumping.

Source:
nanowerk.com

Bookmark:

Related News Press

Nanomedicine

UofL scientists uncover how grapefruits provide a secret weapon in medical drug delivery May 22nd, 2013

Single-Cell Transfection Tool Enables Added Control for Biological Studies: McCormick researchers develop method of delivering molecules into targeted cells May 22nd, 2013

How Gold Nanoparticles Can Help Fight Ovarian Cancer May 21st, 2013

MU Researchers Develop Radioactive Nanoparticles that Target Cancer Cells: This is an early step toward developing therapies for metastasized cancers, MU scientist says May 21st, 2013

Discoveries

Whirlpools on the Nanoscale Could Multiply Magnetic Memory: At the Advanced Light Source, Berkeley Lab scientists join an international team to control spin orientation in magnetic nanodisks May 22nd, 2013

Bacterial spare parts filter antibiotic residue from groundwater May 22nd, 2013

UofL scientists uncover how grapefruits provide a secret weapon in medical drug delivery May 22nd, 2013

Atomic-Scale Investigations Solve Key Puzzle of LED Efficiency: MIT and Brookhaven Lab scientists use electron microscopy imaging techniques to settle a solid-state controversy and raise new experimental possibilities May 22nd, 2013

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals

IDTechEx launches online Market Intelligence Portal May 23rd, 2013

Researchers Stitch Defects into the World’s Thinnest Semiconductor May 22nd, 2013

Whirlpools on the Nanoscale Could Multiply Magnetic Memory: At the Advanced Light Source, Berkeley Lab scientists join an international team to control spin orientation in magnetic nanodisks May 22nd, 2013

UofL scientists uncover how grapefruits provide a secret weapon in medical drug delivery May 22nd, 2013

Quantum Dots/Rods

Perfectly doped quantum dots yield colors to dye for May 11th, 2013

Researchers use graphene quantum dots to detect humidity and pressure May 8th, 2013

Hamburger nano specialist enlarges the CANdots® product Series by fluorescent nanocrystals Series A plus May 8th, 2013

A step toward optical transistors? McGill researchers demonstrate new way to control light in semiconductor nanocrystals April 9th, 2013