Johns Hopkins Center for Health Security

Test results are denoted by a colour change and could be further analysed by a smartphone app, making it attractive as a point-of-care diagnostic device  A multidisciplinary team of researchers at the National University of Singapore (NUS) has developed a portable, easy-to-use device for quick and accurate screening of diseases. This versatile technology platform called enVision (enzyme-assisted

Soft robots can bend, walk and grip. And, unlike their rigid counterparts, some can get flattened and bounce back into shape. Now scientists report a new advance in the journal ACS Applied Materials & Interfaces: a way to make elastic material for soft robots that changes color when it stretches. They say this process opens

Identifying chemicals from a distance Identifying chemicals from a distance could take a step forward with the introduction of a two-laser system being developed at the Department of Energy’s Oak Ridge National Laboratory. In a paper published in the Journal of Physics D: Applied Physics, Ali Passian and colleagues present a technique that uses a

A smaller system makes on-the-spot detection easier and cheaper As the role of pesticides in the decline of pollinator populations and their potential effect on health becomes clearer, it is increasingly important to be able to detect them in the environment and on foods. Usually the equipment used to detect pesticides and other chemicals is

The work has potential in next-generation high-speed communication and biomedical imaging Researchers at the University of Wisconsin-Milwaukee (UWM) have found a new mechanism to transmit light through optical fibers. Their discovery marks the first practical application of a Nobel-Prize-winning phenomenon that was proposed in 1958. Assistant Professor Arash Mafi and doctoral student Salman Karbasi harnessed

Neutrinos from the sun carry information about its fiery core but they are extremely hard to detect. Now, Stanford researchers may have found a much easier and less expensive way to study these elusive particles. In 2009, applied physicist Peter Sturrock was visiting the National Solar Observatory in Tucson, Arizona, when the deputy director of

Don’t look now, but the pronoun “I” is becoming obsolete.  Recent microbiological research has shown that thinking of plants and animals, including humans, as autonomous individuals is a serious over-simplification. A series of groundbreaking studies have revealed that what we have always thought of as individuals are actually “biomolecular networks” that consist of visible hosts

A radiologist’s ability to make accurate diagnoses from high-quality diagnostic imaging studies directly impacts patient outcome. However, acquiring sufficient data to generate the best quality imaging comes at a cost – increased radiation dose for computed tomography (CT) and positron emission tomography (PET) or uncomfortably long scan times for magnetic resonance imaging (MRI). Now researchers

The thermochromic liquid changing color in reaction to a change in temperature Nanowires that form and disperse as the temperature changes form the basis of a robust thermochromic liquid A smart liquid that darkens dramatically in response to rising temperature has been developed by researchers at A*STAR. The nanowire-based thermochromic liquid’s tunable color-changing behavior was