Cell-repellent polyampholyte for conformal coating on microstructures

Synthesis and characterization of prevelex Prevelex was synthesized as previously reported34 and characterized using GPC and FT-IR spectroscopy to determine the molecular weight and functional groups. Subsequently, prevelex was dissolved in an aqueous ethanol solution and coated onto silicon substrates. The prevelex-coated silicon substrate was analyzed using XPS to determine the functional groups on the… Continue reading Cell-repellent polyampholyte for conformal coating on microstructures

Titanium wear from magnetically controlled growing rods (MCGRs) for the treatment of spinal deformities in children

MCGR devices have become a preferred treatment option for children with severe progressive spinal deformity2, thus avoiding repetitive surgical implant lengthening. Efficiency of these implants could be proven in several studies3,4,5, however, implant related complications still remain. MCGRs are usually implanted for several years during the critical pediatric growth period, therefore, the extent of metal… Continue reading Titanium wear from magnetically controlled growing rods (MCGRs) for the treatment of spinal deformities in children

A new material holds promise for the next generation of organic electronics — ScienceDaily

For decades, field-effect transistors enabled by silicon-based semiconductors have powered the electronics revolution. But in recent years, manufacturers have come up against hard physical limits to further size reductions and efficiency gains of silicon chips. That has scientists and engineers looking for alternatives to conventional metal-oxide semiconductor (CMOS) transistors. “Organic semiconductors offer several distinct advantages… Continue reading A new material holds promise for the next generation of organic electronics — ScienceDaily

The odour of amity: how you smell can predict friendships | Research

Two strangers with similar body odour are more likely to become friends, a study by scientists in Israel has found. It shows that despite being an underappreciated sense, smell can play an important role in how people form and maintain social bonds. ‘People constantly, but mostly subconsciously, sniff themselves and others,’ says Inbal Ravreby from… Continue reading The odour of amity: how you smell can predict friendships | Research

Small molecule transports iron in mice, human cells to treat some forms of anemia

Credit: Pixabay/CC0 Public Domain A natural small molecule derived from a cypress tree can transport iron in live mice and human cells lacking the protein that normally does the job, easing a buildup of iron in the liver and restoring hemoglobin and red blood cell production, a new study found. Stemming from a collaboration between… Continue reading Small molecule transports iron in mice, human cells to treat some forms of anemia

A novel Raman chemical sensor made from noodlelike threads of gold

SERS, or surface enhanced Raman spectroscopy, is a method of detecting the presence of a chemical indirectly by using laser light and a specialized sensor. The gold mesh provides an ideal surface for taking measurements as it does not interfere with the substance being measured. Credit: Goda et al. Researchers created a special ultrathin sensor,… Continue reading A novel Raman chemical sensor made from noodlelike threads of gold

Raman and infrared spectroscopy help identify different acetylated lysines

Molecular structures of lysine and three acetylated lysines. Credit: Yao Guohua A research team led by Prof. Huang Qing from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences has used infrared and Raman spectroscopy to identify lysine acetylation features, providing a theoretical and experimental basis for the analysis of protein… Continue reading Raman and infrared spectroscopy help identify different acetylated lysines

A novel Raman chemical sensor made from noodlelike threads of gold — ScienceDaily

Researchers created a special ultrathin sensor, spun from gold, that can be attached directly to the skin without irritation or discomfort. The sensor can measure different biomarkers or substances to perform on-body chemical analysis. It works using a technique called Raman spectroscopy, where laser light aimed at the sensor is changed slightly depending on whatever… Continue reading A novel Raman chemical sensor made from noodlelike threads of gold — ScienceDaily

Structure-property relationships in nanoporous and amorphous iridium oxides

Atomic and crystal structures of the crystalline iridium oxides. a Rutile-type R-IrO2. b Hollandite-type Ho-IrO2. c K-intercalated hollandite-type 1K + Ho-IrO2. d Romanechite-type Ro-IrO2. e K-intercalated romanechite-type 2K + Ro-IrO2. f Todorokite-type To-IrO2. g K-intercalated todorokite-type 4K + To-IrO2. h Corundum-based C-IrO1.5. i bixbyite-based B-IrO1.5. j R3cR-IrO3. k P6322 P-IrO3. The iridium, oxygen, and potassium atoms are depicted as gray, red,… Continue reading Structure-property relationships in nanoporous and amorphous iridium oxides

Fears that the war in east of Ukraine could lead to deadly chemical disaster | Research

As the war in Ukraine drags on into its fourth month, there have been increasing reports of attacks on chemical facilities. On 31 May an air strike in Severodonetsk caused the explosion of a nitric acid container, spewing a huge cloud of toxic fumes into the air, with residents urged to stay in their homes.… Continue reading Fears that the war in east of Ukraine could lead to deadly chemical disaster | Research