Home > News > Nanotube Needles Deliver Quantum Dots
May 10th, 2007
Nanotube Needles Deliver Quantum Dots
Abstract:
Multiwalled carbon nanotubes can be used as nanoinjectors to deliver quantum dots inside cells, a technique that could enhance studies of cellular processes (Proc. Natl. Acad. Sci. USA, DOI: 10.1073/pnas.0700567104).
Chemistry professor Carolyn R. Bertozzi, chemistry graduate student Xing Chen, physics professor Alex Zettl, and physics postdoc Andras Kis at the University of California, Berkeley, and Lawrence Berkeley National Laboratory created the devices by first connecting a single nanotube to an atomic force microscope tip. A quantum dot is attached to the nanotube by a linker that has a pyrene moiety at one end, a biotin moiety at the other end, and a disulfide bond in the middle. The pyrene adsorbs to the nanotube, while the biotin binds to streptavidin on the surface of the quantum dot.
Source:
pubs.acs.org
Bookmark:
Discoveries
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Artificial Forest for Solar Water-Splitting: Berkeley Lab Researchers Report First Fully Integrated Artificial Photosynthesis Nanosystem May 17th, 2013
Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Announcements
Aspen Aerogels Announces $22.5 Million Private Placement May 18th, 2013
NanoInk, Inc. Assets To Be Sold May 18th, 2013
NIA Public Briefing: Nanotechnology and the Council of Europe May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Tools
NanoInk, Inc. Assets To Be Sold May 18th, 2013
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
DNA-Guided Assembly Yields Novel Ribbon-Like Nanostructures: Approach could be useful in fabricating new kinds of materials with engineered properties May 16th, 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 CANdotsŪ 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