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Category: Chemical Engineering

Researchers 3-D print electronics and cells directly on skin

One of the key innovations of the new 3-D-printing technique on skin is that the printer uses computer vision to track and adjust to movements in real-time. Credit: McAlpine group, University of Minnesota In a groundbreaking new study, researchers at the University of Minnesota used a customized, low-cost 3D printer to print electronics on a real hand for the first time. The technology could be used by soldiers on the battlefield to print temporary sensors on their bodies to detect…

Using the stimulant as a catalyst, researchers create new gels for drug delivery — ScienceDaily

Caffeine is well-known for its ability to help people stay alert, but a team of researchers at MIT and Brigham and Women’s Hospital has now come up with a novel use for this chemical stimulant — catalyzing the formation of polymer materials. Using caffeine as a catalyst, the researchers have devised a way to create gummy, biocompatible gels that could be used for drug delivery and other medical applications. “Most synthetic approaches for synthesizing and cross-linking polymeric gels and other…

CFRP recycling—into the battery instead of the garbage

The Fraunhofer ICT uses recycled, small chopped carbon fibers (top) to produce bipolar plates (bottom) for batteries and fuel cells. Credit: Fraunhofer ICT Carbon fiber-reinforced plastics are gaining importance as components of aircraft. The trend is increasing the need for sustainable recycling concepts. At the ILA from April 25 to 29, 2018 in Berlin, Fraunhofer will present a technology that converts recycled carbon fibers into materials for batteries and fuel cells. This saves costs, improves the CO2 balance and opens…

Certain immune cells behave differently in HIV-infected patients than they do in healthy individuals — ScienceDaily

A team of chemical and biomedical engineers from the Cockrell School of Engineering at The University of Texas at Austin, in collaboration with researchers from the University of Pennsylvania, have discovered that HIV-infected patients experience a dysfunction in a certain type of immune cell: the follicular helper T (Tfh) cell. In a paper published today in Science Immunology, the authors outline how, through combining a sophisticated sequencing technique with a mass cytometry method (the measurement of cell characteristics), they discovered…

Certain immune cells behave differently in HIV-infected patients than they do in healthy individuals — ScienceDaily

A team of chemical and biomedical engineers from the Cockrell School of Engineering at The University of Texas at Austin, in collaboration with researchers from the University of Pennsylvania, have discovered that HIV-infected patients experience a dysfunction in a certain type of immune cell: the follicular helper T (Tfh) cell. In a paper published today in Science Immunology, the authors outline how, through combining a sophisticated sequencing technique with a mass cytometry method (the measurement of cell characteristics), they discovered…

Brain development disorders in children linked to common environmental toxin exposures — ScienceDaily

Exposures of pregnant women and children to common thyroid-hormone-disrupting toxins may be linked to the increased incidence of brain development disorders, according to a review published in Endocrine Connections. The review describes how numerous, common chemicals can interfere with normal thyroid hormone actions, which are essential for normal brain development in foetuses and young children, and suggests a need for greater public health intervention. Maternal thyroid hormones (TH) are essential for normal brain development of children and previous human studies…

Exposure to low levels of BPA during pregnancy can lead to altered brain development — ScienceDaily

New research in mice provides an explanation for how exposure to the widely used chemical bisphenol A (BPA) during pregnancy, even at levels lower than the regulated “safe” human exposure level, can lead to altered brain development and behavior later in life. The research will be presented Monday, March 19 at ENDO 2018, the 100th annual meeting of the Endocrine Society in Chicago, Ill. BPA is a chemical that is added to many commercial products, including water bottles, paper receipts,…

Sunday #chemsafety at #ACSNOLA

Today at the ACS National Meeting in New Orleans: Integrating Research & Safety 1:30 PM Grand Salon D Sec 21, Hilton New Orleans Riverside The psychology of developing a positive chemical safety culture in academic research labs Survey of chemist exposure to VOCs from solvent cabinets Study of safer storage and handling of graphene oxide Effectiveness of laser safety eyewear under real-world conditions Safety at the bench: Promoting positive safety culture in academic laboratories Ask Dr. Safety: Integrating research and…

Making better hair dyes — ScienceDaily

Graphene, a naturally black material, could provide a new strategy for dyeing hair in difficult-to-create dark shades. And because it’s a conductive material, hair dyed with graphene might also be less prone to staticky flyaways. Now, researchers have put it to the test. In an article published March 15 in the journal Chem, they used sheets of graphene to make a dye that adheres to the surface of hair, forming a coating that is resistant to at least 30 washes…

PET myocardial perfusion imaging more effective than SPECT scans in detecting coronary disease — ScienceDaily

Patients who receive cardiac positron emission testing (PET) imaging instead of single photon emission computed tomography (SPECT) scan experienced a significant increase in the detection of severe obstructive coronary artery disease, according to researchers at the Intermountain Medical Center Heart Institute in Salt Lake City. Both, PET and SPECT scans are nuclear imaging techniques that provide metabolic and functional information of the heart. PET scans provide better image resolution and quality, but have not yet gotten widespread adaptation compared to…