| DNA strands
connect the quantum dots
DNA can link tiny
particles of cadmium selenide to form three-dimensional arrays
potentially useful as biological sensors.
References:
Mitchell, G.P.,
C.A. Mirkin, and R.L. Letsinger. 1999. Programmed assembly of DNA
functionalized quantum dots. Journal of the American Chemical
Society 121(Sept. 8):8122.
Further Readings:
Peterson, I. 1998.
Electrons in boxes. Science News 153(April 11):236.
______. 1996.
Strange attractions in quantum dots. Science News 149(Feb. 3):70.
______. 1994.
Computing with charged quantum-dot arrays. Science News 146(Dec.
3):375.
Weiss, P. 1998.
Brighter bulbs light up cell innards. Science News 154(Oct.
24):271.
______. 1998.
Taking charge of artificial molecules. Science News 154(July
18):36.
Wu, C. 1999. An
electrifying DNA debate. Science News 156(Aug. 14):104.
______. 1998.
Quantum dots stack in a 3-D array. Science News 154(Dec. 12):383.
______. 1998.
Silver flashes red, yellow, and green. Science News 154(Oct.
3):216.
______. 1998.
Grainy wire self-assembles along DNA. Science News 153(April
4):223.
______. 1996.
Drawing a bead on quantum dot lasers. Science News 150(Nov.
23):327.
______. 1996. DNA
links gold into new materials. Science News 150(Aug. 17):100.
Sources:
A. Paul
Alivisatos
University of California, Berkeley
Department of Chemistry
Berkeley, CA 94720
Web site: http://www.cchem.berkeley.edu/~pagrp/index.html
Chad A. Mirkin
Northwestern University
Department of Chemistry
2145 Sheridan Road
Evanston, IL 60208-3113
Web site: http://www.chem.nwu.edu/brochure/mirkin.html
From Science
News, Vol. 156, No. 12, September 18, 1999, p. 181. Copyright ©
1999, Science Service. |