Estate Gift of $3.9 Million Will Help Caltech Chemists Focus on Innovative Research

A gift of $3.9 million from the estate of Edward and Ruth Hughes to the California Institute of Technology (Caltech) wll support graduate research fellowships in the Division of Chemistry and Chemical Engineering (CCE).

Caltech Scientists Film Photons with Electrons

Techniques recently invented by researchers at the California Institute of Technology (Caltech)—which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale matter—have been used to image the evanescent electrical fields produced by the interaction of electrons and photons, and to track changes in atomic-scale structures.

Caltech Scientists Show How Ubiquitin Chains are Added to Cell-Cycle Proteins

Researchers from Caltech have been able to view in detail, and for the first time, the previously mysterious process by which long chains of a protein called ubiquitin are added by enzymes called ubiquitin ligases to proteins that control the cell cycle. Ubiquitin chains tag target proteins for destruction by protein-degrading complexes in the cell. Their findings, and the innovative process by which they were obtained, are described in this week's issue of Nature.

Nobel Laureate Ahmed Zewail Named United States Science Envoy

Nobel Laureate Ahmed Zewail, the Linus Pauling Professor of Chemistry and professor of physics at the California Institute of Technology (Caltech), has been named an envoy in the new U.S. Science Envoy Program.

Caltech and Dow Chemical Team Up in Solar Materials Effort

The California Institute of Technology (Caltech) and the Dow Chemical Company today announced a new solar-research collaboration aimed at developing the use of semiconductor materials that are less expensive and more abundant than those used in many of today's solar cells. In addition, they announced the creation of the Dow Chemical Company Graduate Fellowship in Chemical Sciences and Engineering.

Caltech Scientists Develop DNA Origami Nanoscale Breadboards for Carbon Nanotube Circuits

In work that someday may lead to the development of novel types of nanoscale electronic devices, an interdisciplinary team of researchers at the California Institute of Technology (Caltech) has combined DNA's talent for self-assembly with the remarkable electronic properties of carbon nanotubes, thereby suggesting a solution to the long-standing problem of organizing carbon nanotubes into nanoscale electronic circuits.

Caltech and IBM Scientists Use Self-Assembled DNA Scaffolding to Build Tiny Circuit Boards

Scientists at the Caltech and IBM's Almaden Research Center have developed a new technique to orient and position self-assembled DNA shapes and patterns--or "DNA origami"--on surfaces that are compatible with today's semiconductor manufacturing equipment. These precisely positioned DNA nanostructures, each no more than one one-thousandth the width of a human hair, can serve as scaffolds or miniature circuit boards for the precise assembly of computer-chip components.

Caltech Researchers Show How Organic Carbon Compounds Emitted by Trees Affect Air Quality

A previously unrecognized player in the process by which gases produced by trees and other plants become aerosols—microscopically small particles in the atmosphere—has been discovered by a research team led by scientists at the California Institute of Technology (Caltech). Their research on the creation and effects of these chemicals, called epoxides, is being featured in this week's issue of the journal Science.

 

Caltech Chemists Say Antibody Surrogates Are Just a "Click" Away

Chemists at the California Institute of Technology (Caltech) and the Scripps Research Institute have developed an innovative technique to create cheap but highly stable chemicals that have the potential to take the place of the antibodies used in many standard medical diagnostic tests.

Caltech Researchers Explore How Cells Reconcile Mixed Messages in Decisions About Growth

The cells in our body are constantly receiving mixed messages. An epithelial cell might be exposed to one signal telling it to divide and, simultaneously, another telling it to stop dividing. The tug-of-war between these two sets of influences, and the effects they have on tissue growth, are explained and explored in a paper authored by scientists from Caltech and published online in the Proceedings of the National Academy of Sciences.

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