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48 articles from PhysOrg

Team develops biocompatible adhesive applicable to hair transplants

Medical adhesives are materials that can be applied to various uses such as wound healing, hemostasis, vascular anastomosis, and tissue engineering, and they are expected to contribute greatly to the development of minimally invasive surgery and organ transplants. However, adhesives that have high adhesion and low toxicity while also being capable of decomposing in the body are rare.

Researchers reveal molecular mechanism behind pigment production in skin cells

The pigments that create skin, hair, and eye color are produced in organelles called melanosomes, which are located within skin cells called melanocytes and several types of eye pigment cells. Albinism, a condition characterized by an absence of pigment in the skin, hair and eyes, occurs when mutations within genes responsible for melanosome function or supporting cellular machinery prevent...

AI predicts physics of future fault slip in laboratory earthquakes

An artificial intelligence approach borrowed from natural language processing—much like language translation and autofill for text on your smart phone—can predict future fault friction and the next failure time with high resolution in laboratory earthquakes. The technique, applying AI to the fault's acoustic signals, advances previous work and goes beyond by predicting aspects of the future...

Why the Salton Sea is turning into toxic dust

The Salton Sea, California's most polluted inland lake, has lost a third of its water in the last 25 years. New research has determined a decline in Colorado River flow is the reason for that shrinking.

Wildlife trade threatening unprotected animals

International trade in animals not regulated by multilateral agreements is putting them under increasing threat. More than three times the number of unregulated animal species are being imported into the United States compared to the number of regulated species.

Nanomaterial from the Middle Ages

To gild sculptures in the late Middle Ages, artists often applied ultra-thin gold foil supported by a silver base layer. For the first time, scientists at the Paul Scherrer Institute PSI have managed to produce nanoscale 3D images of this material, known as Zwischgold. The pictures show this was a highly sophisticated medieval production technique and demonstrate why restoring such precious gilded...

Virginia voters care about pollution. So why is the Chesapeake Bay dirty?

A majority of Virginia voters are concerned about pollution, particularly plastics clogging waterways and runoff that contaminates waters, according to a recent survey by the Virginia Coastal Zone Management Program, Clean Virginia Waterways at Longwood University and OpinionWorks. Most voters also support legislation to cut pollution.

Novel focusing quadrupole ion funnel developed to improve detection sensitivity of mass spectrometers

According to a recent study published in Analytical Chemistry, researchers from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) have proposed a novel focusing quadrupole ion funnel (FQ-IF) that takes advantage of radio frequency ion focusing technology in proton transfer reaction mass spectrometry (PTR-MS) and greatly improves its sensitivity, endowing it...