Scientists from the Hong Kong University of Science and Technology have recently uncovered the mechanisms of how RNA polymerase II performs intrinsic cleavage reaction to proofread RNA transcriptions, shedding light on how misregulation of accurate transcription can lead to diseases including cancer and Alzheimer's disease.
Just as controlled-release medications slowly dole out their cargo after they experience a pH change in the body, implanted 'artificial muscles' could someday flex and relax in response to light illuminating the skin. In pilot studies, scientists have developed a new material that expands and contracts, lifting a weight merely by shining a light on it. The researchers will present their results today at the American Chemical Society Spring 2019 National Meeting & Exposition.
For the first time ever, scientists have imaged the process by which an individual immune system molecule is switched on in response to a signal from the environment, leading to the critical discovery that the activation process involves hundreds of proteins suddenly coming together to form a linked network through a process known as a phase transition.
An interdisciplinary team of researchers from the McKelvey School of Engineering and the School of Medicine have found the most efficient length for cilia, the tiny hair-like structures designed to sweep out the body's fluids, cells and microbes to stay healthy.
The mechanism of tactile sensation has not yet been solved though it is the basic sense of humans. NITech scientists investigated its mechanism and found the important cues in touch could be different for each person. When humans evaluate the roughness, different individuals weigh skin vibration information, spatial information, and other mechanical properties differently. The goal is to establish an estimation model of perceptual roughness ratings involving individual differences in the cognitive weights.
The bizarre optical properties of tiny metal particles -- smaller than light waves -- can be captured on paper to detect even a single target molecule in a test sample. These hyper-sensitive testing devices could be assembled and customized at the point of use in low-resource environments, with virtually limitless applications spanning medicine, forensics, manufacturing and environmental safety.
Maybe running comes easy, each stride pleasant and light. Maybe it comes hard, each step a slog to the finish. Either way, the human body is constantly calibrating, making microscopic adjustments to keep us from falling as we weekend-warrior our way to greatness.
Bioscientists at Rice and the University of Maryland with the Center for Engineering Complex Tissues learn to 3D-print scaffolds that may help heal osteochondral injuries of the sort suffered by many athletes.
Biophysicists have used an automated method to model a living system -- the dynamics of a worm perceiving and escaping pain. The model makes accurate predictions about the dynamics of the worm behavior, and these predictions are biologically interpretable and have been experimentally verified.
Exercise helps to prevent the degradation of cartilage caused by osteoarthritis, according to a new study from Queen Mary University of London.