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Archive for the ‘chemistry’ category: Page 53

Sep 24, 2023

NASA’s First Asteroid Sample Has Landed, Now Secure in Clean Room

Posted by in categories: chemistry, security, space

After years of anticipation and hard work by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security – Regolith Explorer) team, a capsule of rocks and dust collected from asteroid Bennu finally is on Earth. It landed at 8:52 a.m. MDT (10:52 a.m. EDT) on Sunday, in a targeted area of the Department of Defense’s Utah Test and Training Range near Salt Lake City.

Within an hour and a half, the capsule was transported by helicopter to a temporary clean room set up in a hangar on the training range, where it now is connected to a continuous flow of nitrogen.

Getting the sample under a “nitrogen purge,” as scientists call it, was one of the OSIRIS-REx team’s most critical tasks today. Nitrogen is a gas that doesn’t interact with most other chemicals, and a continuous flow of it into the sample container inside the capsule will keep out earthly contaminants to leave the sample pure for scientific analyses.

Sep 23, 2023

Split gene-editing tool offers greater precision

Posted by in categories: biotech/medical, chemistry, genetics

To make a gene-editing tool more precise and easier to control, Rice University engineers split it into two pieces that only come back together when a third small molecule is added.

Researchers in the lab of chemical and biomolecular engineer Xue Sherry Gao created a CRISPR-based gene editor designed to target adenine ⎯ one of the four main DNA building blocks ⎯ that remains inactive when disassembled but kicks into gear once the binding molecule is added.

Compared to the intact original, the split editor is more precise and stays active for a narrower window of time, which is important for avoiding off-target edits. Moreover, the activating small molecule used to bind the two pieces of the tool together is already being used as an anticancer and immunosuppressive drug.

Sep 23, 2023

Dr George Dodge — CEO & Co-Founder — Mechano-Therapeutics — Revolutionizing Musculoskeletal Health

Posted by in categories: biotech/medical, chemistry, health

Revolutionizing Musculoskeletal Health Through Microcapsule Drug Delivery — Dr. @George R. Dodge, Ph.D. — CEO & Co-Founder — Mechano-Therapeutics LLC


Dr. George R. Dodge, Ph.D. is CEO & Co-Founder of Mechano-Therapeutics LLC (https://mechano-therapeutics.com/), a biotechnology company spun out from his lab, and the labs of his partners Dr. Rob Mauck and Dr. Daeyeon Lee, at the University of Pennsylvania, specializing in microcapsule development using proprietary microfluidics for drug encapsulation, with a mission to revolutionize musculoskeletal health using an innovative platform technology to enhance delivery of therapeutics for improving patient outcomes.

Continue reading “Dr George Dodge — CEO & Co-Founder — Mechano-Therapeutics — Revolutionizing Musculoskeletal Health” »

Sep 23, 2023

Unlocking Battery Mysteries: X-Ray “Computer Vision” Reveals Unprecedented Physical and Chemical Details

Posted by in categories: biological, chemistry, computing, nanotechnology, physics

It lets researchers extract pixel-by-pixel information from nanoscale.

The nanoscale refers to a length scale that is extremely small, typically on the order of nanometers (nm), which is one billionth of a meter. At this scale, materials and systems exhibit unique properties and behaviors that are different from those observed at larger length scales. The prefix “nano-” is derived from the Greek word “nanos,” which means “dwarf” or “very small.” Nanoscale phenomena are relevant to many fields, including materials science, chemistry, biology, and physics.

Sep 23, 2023

Unique New Material Could Generate More Computing Power and Memory Storage While Using Significantly Less Energy

Posted by in categories: biotech/medical, chemistry, computing

For the first time, a team from the University of Minnesota Twin Cities has synthesized a thin film of a unique topological semimetal material that has the potential to generate more computing power and memory storage while using significantly less energy. Additionally, the team’s close examination of the material yielded crucial insights into the physics behind its unique properties.

The study was recently published in the journal Nature Communications.

<em>Nature Communications</em> is a peer-reviewed, open-access, multidisciplinary, scientific journal published by Nature Portfolio. It covers the natural sciences, including physics, biology, chemistry, medicine, and earth sciences. It began publishing in 2010 and has editorial offices in London, Berlin, New York City, and Shanghai.

Sep 23, 2023

Brazilian researchers develop method of purifying water contaminated by glyphosate

Posted by in categories: chemistry, economics

Researchers at São Paulo State University (UNESP) in Brazil have developed a strategy for removing glyphosate, one of the world’s most frequently used herbicides, from water. Inspired by the concept of the circular economy, the technique is based on sugarcane bagasse, a waste material produced by sugar and ethanol plants.

“Isolated and chemically functionalized sugarcane bagasse fibers can be used as adsorbent material. Glyphosate adheres to its surface and is removed as a water contaminant by filtration, decantation or centrifugation,” Maria Vitória Guimarães Leal, told Agência FAPESP.

She is the first author of an article on the research published in the journal Pure and Applied Chemistry. Adsorption is a process whereby molecules dispersed in a liquid or gaseous medium adhere to a solid insoluble surface, which is typically porous.

Sep 22, 2023

SLAC fires up the world’s most powerful X-ray laser: LCLS-II ushers in a new era of science

Posted by in categories: biological, chemistry, computing, quantum physics, science, sustainability

The newly upgraded Linac Coherent Light Source (LCLS) X-ray free-electron laser (XFEL) at the Department of Energy’s SLAC National Accelerator Laboratory successfully produced its first X-rays, and researchers around the world are already lined up to kick off an ambitious science program.

The upgrade, called LCLS-II, creates unparalleled capabilities that will usher in a new era in research with X-rays.

Scientists will be able to examine the details of quantum materials with unprecedented resolution to drive new forms of computing and communications; reveal unpredictable and fleeting chemical events to teach us how to create more sustainable industries and ; study how carry out life’s functions to develop new types of pharmaceuticals; and study the world on the fastest timescales to open up entirely new fields of scientific investigation.

Sep 22, 2023

Violating the Universal Kasha’s Rule — Scientists Uncover Secrets of a Mysterious Blue Molecule

Posted by in categories: chemistry, energy

Scientists from IOCB Prague are the first to describe the causes of the behavior of one of the fundamental aromatic molecules, azulene. This molecule has captivated the scientific community not just with its distinct blue hue, but also with its unique properties.

Their current undertaking will influence the foundations of organic chemistry in the years to come and in practice will help harness the maximum potential of captured light energy. Their findings were recently published in the Journal of the American Chemical Society (JACS).

Azulene has piqued the curiosity of chemists for many years. The question of why it is blue, despite there being no obvious reason for this, was answered almost fifty years ago by a scientist of global importance, who, coincidentally, had close ties with IOCB Prague, Prof. Josef Michl.

Sep 22, 2023

World’s most powerful X-ray laser will ‘film’ chemical reactions in unprecedented detail

Posted by in category: chemistry

Upgraded laser in California will produce one million X-ray pulses per second to study ultrafast processes at the atomic level.

Sep 22, 2023

Israeli Researchers Develop Method for Safely Detecting Landmines — Using Bacteria

Posted by in categories: chemistry, innovation

By John Jeffay, ISRAEL21c

Researchers in Israel have announced a breakthrough in safely detecting landmines – using bacteria.

They’ve developed tiny pellet-sized biosensors based on E. coli. The biosensors are dispersed over the target area, where they sniff out the chemical signature of buried explosives and become luminescent.

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