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New approach to rewriting bacteria s genetic code could lead to novel medicines | Science

Escherichia coli, researchers incorporated several unnatural amino acids into bacterial proteins. STEVE GSCHMEISSNER/Science Source New approach to rewriting bacteria’s genetic code could lead to novel medicines Jun. 3, 2021 , 4:10 PM Virtually all living organisms construct their proteins from combinations of 20 different amino acids. To add new amino acids to the mix, scientists have re-engineered genes and other bits of protein-building machinery, resulting in proteins with unique chemical properties useful in making drugs. But the work is laborious and can typically only add one new amino acid at a time. Now, researchers have opened the floodgates to doing much more. They report today that a broad rewrite of a bacterium’s genome lets them add numerous novel amino acids to one protein. The work could open new ways to synthesize antibiotics and antitumor drugs.

United statesAbhishek chatterjeeChang liuJason chinUniversity of californiaResearch council laboratory of molecular biologyRobertf serviceBoston collegeScience sourceMedical research council laboratoryஒன்றுபட்டது மாநிலங்களில்அபிஷேக் சாட்டர்ஜிசாங் லியூஜேசன் கன்னம்பல்கலைக்கழகம் ஆஃப் கலிஃபோர்னியாஆராய்ச்சி சபை ஆய்வகம் ஆஃப் மூலக்கூறு உயிரியல்

Zinc-based cells promise to be cheaper and safer for grid storage

This energy storage facility under construction in southeast England uses lithium-ion batteries. CHRIS RATCLIFFE/BLOOMBERG/GETTY IMAGES Zinc-based cells promise to be cheaper and safer for grid storage May. 27, 2021 , 10:30 AM If necessity is the mother of invention, potential profit has to be the father. Both incentives are driving an effort to transform zinc batteries from small, throwaway cells often used in hearing aids into rechargeable behemoths that could be attached to the power grid, storing solar or wind power for nighttime or when the wind is calm. With startups proliferating and lab studies coming thick and fast, “Zinc batteries are a very hot field,” says Chunsheng Wang, a battery expert at the University of Maryland, College Park.

United statesCollege parkGavin newsomWei wangMichael burzDebra rolisonMark baggioChunsheng wangJoe bidenNature energyUniversity of marylandPacific northwest national laboratoryEnergy storage materials initiativeHanyang universityNaval research laboratoryEnergy solutions

Batteries used in hearing aids could be key to the future of renewable energy

Zinc-based cells promise to be cheaper and safer for grid storage

United statesCollege parkGavin newsomWei wangMichael burzDebra rolisonMark baggioChunsheng wangJoe bidenNature energyUniversity of marylandPacific northwest national laboratoryEnergy storage materials initiativeHanyang universityNaval research laboratoryEnergy solutions

Planned service road near Mount St Helens threatens to end decades of research

Share Where debris flowed from a 1980 eruption, plants and animals have slowly returned. But a road may disrupt those ecological communities. CARRI J. LEROY Planned service road near Mount St. Helens threatens prized research area Apr. 21, 2021 , 1:00 PM When Mount St. Helens in Washington state erupted on 18 May 1980, the initial explosion blew sideways, creating a nearly 600-square-kilometer blast zone and what has become a prized ecological research area. Dozens of groups have tracked life’s reemergence there, one lupine and ladybug at a time. Now, many of those research projects may be endangered. Last month, the U.S. Forest Service (USFS), which manages the land, issued a decision to build a road stretching through the heart of the research area to the banks of Spirit Lake, 5 kilometers northeast of the crater. The agency says the road will service a tunnel that drains the lake to prevent a catastrophic flood, a threat to tens of thousands of people in the valley

United statesUniversity of washingtonUnited kingdomColumbia riverCanada generalBritish columbiaWashington state universityColdwater creekSpirit lakePumice plainJohn bishopEric veachRobin gregoryJames gawelSusan jane brownEvergreen state university

Glass molded like plastic could usher in new era of complex shapes

Glass molded like plastic could usher in new era of complex shapes
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Glassomer gmbFrederik kotzAlbert ludwig university of freiburgRobertf serviceAlbert ludwig universityஆல்பர்ட் லுட்விக் பல்கலைக்கழகம்