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Chemists in Biological News

Dancing 'adatoms' help chemists understand how water molecules split

RICHLAND, Wash. -- Single oxygen atoms dancing on a metal oxide slab, glowing brighter here and dimmer there, have helped chemists better understand how water splits into oxygen and hydrogen. In the process, the scientists have visualized a chemical reaction that had previously only been talked ab...

UConn chemists find secret to increasing luminescence efficiency of carbon nanotubes

STORRS, Conn. - Chemists at the University of Connecticut have found a way to greatly increase the luminescence efficiency of single-walled carbon nanotubes, a discovery that could have significant applications in medical imaging and other areas. Increasing the luminescence efficiency of carbo...

Clemson chemists present revolutionary teaching concepts

CLEMSON Clemson University researchers want to strengthen chemistry skills starting at the molecular level and are introducing revolutionary ways for high school- and college-level educators to do that for students. Clemson chemistry professors Melanie Cooper and Gautam Bhattacharyya, along wi...

JHU chemists devise self-assembling 'organic wires'

From pacemakers constructed of materials that so closely mimic human tissues that a patient's body can't discern the difference to devices that bypass injured spinal cords to restore movement to paralyzed limbs, the possibilities presented by organic electronics read like something from a science ...

Smoke smudges Mexico City's air, chemists identify sources

Mexico City once topped lists of places with the worst air pollution in the world. Although efforts to curb emissions have improved the situation, tiny particles called aerosols still clog the air. Now, atmospheric scientists from UC San Diego and six other institutions have sorted through the pal...

NIST chemists get scoop on crude 'oil' from pig manure

After a close examination of crude oil made from pig manure, chemists at the National Institute of Standards and Technology (NIST) are certain about a number of things. Most obviously, "This stuff smells worse than manure," says NIST chemist Tom Bruno. But a job's a job, so the NIST team has...

Glowing films developed by UC San Diego chemists reveal traces of explosives

New spray-on films developed by UC San Diego chemists will be the basis of portable devices that can quickly reveal trace amounts of nitrogen-based explosives. Contaminated fingerprints leave dark shadows on the films, which glow blue under ultraviolet light. One of the films can distinguish be...

Biologists are from Mars, chemists are from Venus?

Plays well with others. That popular phrase on a T-shirt is being taken to a whole new level in higher education these days, as experts in a variety of fields increasingly must work together to address some of society's biggest challenges, from a warming planet to cancer. But how do scientis...

Team of chemists receives $5 million grant to develop enzyme mimics

EVANSTON, Ill. --- Mother Nature regulates critical cellular activities in plants and animals by using enzymes, catalysts that bring about specific biochemical reactions. Looking to learn from nature, a team of Northwestern University chemists has received a $5 million grant from the Air Force Off...

Good earth: Brown chemists show origin of soil-scented geosmin

PROVIDENCE, R.I. [Brown University] Brown University chemists have found the origins of an odor the sweet smell of fresh dirt. In Nature Chemical Biology, the Brown team shows that the protein that makes geosmin source of the good earth scent has two similar but distinct halves, each playing a...

Clemson chemists discover new way antioxidants fight debilitating diseases

CLEMSON Cancer, cardiovascular diseases, Parkinsons and Alzheimers are often linked to DNA damage that occurs when metal ions in the body such as iron and copper produce reactive oxygen compounds that damage human cells. Studies have shown antioxidants that neutralize this activity and that occur ...

NYU chemists use computer simulation to enhance understanding of DNA transcription

New York University chemists have employed a computer simulation whose results have enhanced scientific understanding of the DNA transcription process. The study, funded by the National Institutes of Health, appears in the June 7 issue of the Proceedings of the National Academy of Sciences. Previ...

Red delicious, Northern Spy apples have most antioxidants, chemists find

Some apples might do a better job of keeping the doctor away than others, according to Canadian researchers who analyzed eight popular varieties of the fruit. Red Delicious, Northern Spy and Ida Red, they say, pack a greater wallop of disease-fighting antioxidants than other apples studied. The ...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

To understand the formation of the brain-clogging deposits that cause such disorders as Alzheimer's and Parkinson's diseases, Duke University chemists have figured out how to capture and "micromanipulate" the single molecular building blocks of the deposits. Their aim is to understand the detaile...

Navigating in the ocean of molecules

...nn's group at the Max Planck Institute of Molecular Physiology in Dortmund. chemists cannot cook up all possible compounds to test them. Therefore, the research...g characteristics as the starting point in the quest for new active agents: chemists can then vary the scaffolds with different appendages to synthesize the opt...

Warmer environment means shorter lives for cold-blooded animals

... a beaker in which chemical reactions are taking place," said Salinas. "The same rules that apply to a liquid inside a beaker should apply to animals. chemists have a relationship for how an increase in temperature will speed up reaction rates, so the MTE borrows that relationship and applies it--with some ob...

Nanophysics: Serving up Buckyballs on a silver platter

...cs.aps.org ). Ever since the 1985 discovery of C60, this molecule, with its perfect geodesic dome shape has fascinated scientists, physicists, and chemists alike. Like a soccer ball, the molecule consists of 20 carbon hexagons and 12 carbon pentagons. The electronic properties of C60 are very unusual, and...

New supercomputer to reel in answers to some of Earth's problems

...sts who are trying to understand the tiniest particles in the atmosphere or chemists watching how atoms tug at each other in a molecule need a different kind of... to take advantage of their clean-up skills. Green plastics: Industrial chemists can turn propane gas into plastics and generate only water as a byproduct w...

New windows opened on cell-to-cell interactions

...ll membranes In a paper appearing online in the Journal of the American Chemical Society (JACS) in early July, Parthasarathy teamed with organic chemists at the University of California, Berkeley, to study how molecules are oriented on their cell membranes to allow for cell-to-cell interactions. The ...

SRI announces selection by the National Cancer Institute as a Chemical Biology Consortium center

...dentifying, developing and advancing novel compounds into clinical evaluation. SRI's Center for Cancer Research, comprised of biologists and medicinal chemists with expertise in fundamental and applied cancer research, focuses on the study of tumor microenvironment, tumor metabolism, and aberrant signaling pa...

American Chemical Society's Weekly Presspac -- June 17, 2009

...generating less waste and emissions, minimizing material and energy use and operating more safely under more benign conditions. Overall, the fact that chemists are paying closer attention to their choices of reagents and solvents is making process development even greener. For a copy of this story, send an e-...

McGill University receives almost $63 million under CFI program to support five research projects

...C.J. Li, Canada Research Chair in Green Chemistry, virtually co-invented green chemistry, a movement that discovers new chemical reactions which allow chemists to switch from harmful petrochemicals and solvents to environmentally sound alternatives like water. Received $8,320,447. "The CFI's support of ...

Sediment yields climate record for past half-million years

...their analysis of this sediment core a record of the temperature at the sea surface in the North Atlantic. They drew on knowledge readily known to chemists that the amount of magnesium trapped in calcite crystals can indicate the temperatures at which the crystals formed. The more magnesium present, the w...

American Chemical Society's Weekly PressPac -- May 20, 2009

...ientists have already identified 60 promising plants from the group and found at least 10 active substances that could be turned into promising drugs. chemists will eventually try to make the most active substances more potent, last longer, and minimize their side-effects, the article notes. ARTICLE #5 EM...

Plastic that grows on trees, part two

...eve this, scientists have to learn how to convert plant biomass into a building block for plastics and fuels cheaply and efficiently. In new research, chemists have successfully converted cellulose -- the most common plant carbohydrate -- directly into the building block called HMF in one step. The result...

Synthetic catalyst mimics nature's 'hydrogen economy'

... CHAMPAIGN, Ill. By creating a model of the active site found in a naturally occurring enzyme, chemists at the University of Illinois have described a catalyst that acts like nature's most pervasive hydrogen processor. The researchers describe their wo...

George M. Whitesides receives inaugural Dreyfus prize in the chemical sciences

...nces and materials chemistry. He is one of the most innovative and prolific chemists of our time and the most highly cited living chemist in the world. He has ...Award, the Welch Award from the Welch Foundation, the American Institute of chemists Gold Medal, and the Franklin Foundation's Benjamin Franklin Medal in Chemis...

American Chemical Society's weekly PressPac -- April 29, 2009

...ing, capitalization, spelling, and other factors. Proper translation from English to Chinese, for example, often requires the use of specially trained chemists who are fluent in both languages. Although scientists have tried for decades to create computer software for quickly translating chemical names into o...

American Chemical Society's Weekly PressPac -- April 22, 2009

...n Chemical & Engineering News . Resources for Covering Earth Day 2009 The American Chemical Society's (ACS) observance of Earth Day on April 22 chemists Celebrate Earth Day 2009 will include community events focused on the theme, "Air The Sky's the Limit" based on understanding and protecting the pla...

Boston College chemistry professor Udayan Mohanty receives a 2009 Guggenheim Fellowship

...tion pathways that are as yet unknown, in particular those surrounding the behavior of DNA and RNA. Mohanty joins a distinguished list of fellow BC chemists who have previously received Guggenheim Fellowships, including John Tully, Margaret Tolbert, and Laura Kiessling. ...

American Chemical Society Weekly PressPac -- April 8, 2009

... Chemical & Engineering News . Resources for Covering Earth Day 2009 The American Chemical Society's (ACS) observance of Earth Day on April 22 chemists Celebrate Earth Day 2009 will include community events focused on the theme, "Air The Sky's the Limit" based on understanding and protecting the pla...

New drug shows promise in treating drug-resistant prostate cancer

... prostate cancer has shown considerable promise in early clinical trials involving patients whose disease has become resistant to current drugs. chemists and biologists at UCLA and colleagues at several other institutions, including Memorial Sloan-Kettering Cancer Center, have created a new drug to trea...

Penn researchers demonstrate a new model for drug discovery with a fluorescent anesthetic

... PHILADELPHIA - A collaboration of University of Pennsylvania and University of Wisconsin chemists and anesthesiologists have identified a fluorescent anesthetic compound that will assist researchers in obtaining more precise information about how a...

Engineers develop method to disperse chemically modified graphene in organic solvents

...terial.Its unusual combination of very high mechanical stiffness and strength, high and tunable electrical and thermal conductivity, and the fact that chemists can alter its chemistry readily means it has applications in nanoelectronics, solar cell devices and energy storage devices such as batteries and ultr...

'Buckyballs' to treat multiple sclerosis

...r Fuller's distinctive "geodesic domes" soccer-ball-shaped structures that the late futurist envisioned as ideal human domiciles. Tel Aviv University chemists remember them too and are now putting them to use in the treatment of multiple sclerosis (MS). In partnership with a group of Prof. Howard Weiner ...

New simulation shows consequences of a world without Earth's natural sunscreen

...n cancer rates. Such is the world we would have inherited if 193 nations had not agreed to ban ozone-depleting substances, according to atmospheric chemists at NASA's Goddard Space Flight Center, Greenbelt, Md., Johns Hopkins University, Baltimore, and the Netherlands Environmental Assessment Agency, Bilth...

University researchers to develop coatings that kill superbugs

...om medical devices, wound dressings, food packaging and even nappies. Led by Dr Toby Jenkins at the University of Bath, the research team comprises chemists Dr Andrew Johnson and Dr Gareth Price, and biologist Dr Nick Waterfield as well as colleagues in Barcelona, Exeter, St. Gallen (Switzerland), Mainz an...

Twin nanoparticle shown effective at targeting, killing breast cancer cells

...y target healthy cells as well as tumor cells. The trick becomes how to deliver cancer-fighting drugs directly to the tumor cells. Brown University chemists think they have an answer: They have created a twin nanoparticle that specifically targets the Her-2-positive tumor cell, a type of malignant cell tha...

LSTM and UoL secure £1.4m ($2m) to develop new 'magic bullet' antimalarial drug

...(LSTM) are now assembling a team of biochemists, pharmacologists, medicinal chemists and computational chemists to design new compounds that will successfully inhibit its operation. Drug...

Case Western Reserve researchers develop 'wireless' activation of brain circuits

... a sharp metal electrode. But a team of researchers at Case Western Reserve University is going "wireless." And it's a unique collaboration between chemists and neuroscientists that led to the discovery of a remarkable new way to use light to activate brain circuits with nanoparticles. Ben Strowbridge,...
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