Chemists, engineers craft adjustable arrays of microscopic lenses
They number in the thousands, light striking the phalanx of lenses arrayed on a face in geometric pattern, the beams refracting through transparent mounds no wider than a hair.
They number in the thousands, light striking the phalanx of lenses arrayed on a face in geometric pattern, the beams refracting through transparent mounds no wider than a hair.
Polymers
Oct 23, 2023
0
803
Just like an alphabet is made up of individual letters, DNA is composed of chemical bases. And in the same way that letters must be placed in a specific order to form words and sentences, the sequence of chemical bases is ...
Analytical Chemistry
Jan 18, 2017
1
2929
How much information can you get from a speck of purple pigment, no bigger than the diameter of a hair, plucked from an Egyptian portrait that's nearly 2,000 years old? Plenty, according to a new study. Analysis of that speck ...
Analytical Chemistry
Nov 20, 2020
1
790
Water, so ordinary and so essential to life, acts in ways that are quite puzzling to scientists. For example, why is ice less dense than water, floating rather than sinking the way other liquids do when they freeze?
Analytical Chemistry
Jul 16, 2020
1
3534
Notorious asphyxiator carbon monoxide has few true admirers, but it's favored by University of California, Irvine scientists who use it to study other molecules.
Analytical Chemistry
Oct 3, 2018
0
2202
Researchers at the Stanford University School of Medicine have developed a way to produce a cheap and reusable diagnostic "lab on a chip" with the help of an ordinary inkjet printer.
Analytical Chemistry
Feb 6, 2017
6
1598
Bone regeneration is a complex process, and existing methods to aid regeneration including transplants and growth factor transmissions face limitations such as the high cost. But recently, a piezoelectric material that can ...
Analytical Chemistry
Feb 1, 2024
0
751
Chemists have confirmed a 67-year-old theory about vitamin B1 by stabilizing a reactive molecule in water—a feat long thought impossible. The discovery not only solves a biochemical mystery, but also opens the door to greener, ...
Biochemistry
Apr 21, 2025
0
747
A team of aroma chemists at Friedrich-Alexander-Universität Erlangen-Nürnberg, working with psychologist colleagues from the Technical University of Dresden, has uncovered the reasons for the dissimilar smells between babies ...
Quantum dots are nanoscale crystals capable of emitting light of different colors. Display devices based on quantum dots promise greater power efficiency, brightness and color purity than previous generations of displays. ...
Analytical Chemistry
Nov 8, 2022
0
733