Electronic and photonic devices have unique functionalities for converting chemical and biological processes into electrical or optical signals to detect, identify, and monitor these processes. Integrating nanotechnology concepts has led to various innovative optoelectronic designs that empower next-generation devices. Deoxyribonucleic acid (DNA) is the molecule that stores and transmits genetic information in biological systems. [...]

The US Food and Drug Administration authorised the use of versions of Moderna and Pfizer/BioNTech covid-19 vaccines that target both the original virus and two omicron subvariants. The US Food and Drug Administration (FDA) granted emergency use authorisation on 31 August to covid-19 vaccines that target two different coronavirus variants. These updated “bivalent” vaccine [...]

Nanoparticles can be used as powerful vehicles to administer vaccines and prevent serious illness, as with the treatment of COVID-19 and to deliver chemotherapeutic drugs to cancer cells with goal of eradicating the cancer cells and leaving the healthy cells unharmed. For cancer patients, this has the potential to reduce severe side effects that [...]

All displays consist of a lattice of tiny dots of light, called pixels, the brightness of which can be individually controlled. The total number of pixels—and therefore, the resolution and display size—is limited by how many of these pixels can be addressed within a given fraction of a second. Therefore, display manufacturers try to [...]

The key to maximizing traditional or quantum computing speeds lies in our ability to understand how electrons behave in solids, and a collaboration between the University of Michigan and the University of Regensburg captured electron movement in attoseconds—the fastest speed yet. Seeing electrons move in increments of one quintillionth of a second could help [...]

Nanoplastics are abundant in the environment and substantially impact public health. However, existing knowledge on the effects of nanoplastics on terrestrial plants is inconsistent. The absence of systematic techniques for assessing these impacts restricts the capacity to generalize from recent findings and creates significant procedural barriers. A recent study published in the journal ACS Nano tackles this problem [...]

The vision of Purdue University biomedical engineer Chi Hwan Lee to develop specialized smart soft contact lenses that can accurately measure intraocular pressure (IOP) in a person’s eye could be the latest answer to stopping glaucoma-related blindness. Lee, the Leslie A. Geddes Associate Professor of Biomedical Engineering in Purdue’s Weldon School of Biomedical Engineering, [...]

Engineers at the University of California San Diego have developed a thin, flexible and stretchy sweat sensor that can show the level of glucose, lactate, sodium, or pH of your sweat, at the press of a finger. It is the first standalone wearable device that allows the sensor to operate independently – without any [...]

SARS-CoV-2, the virus that causes COVID-19, is an airborne disease transmitted via aerosols, which are spread from the oral and nasal cavities—the mouth and the nose. In addition to the well-known division and spread of the virus in the cells of the respiratory tract, SARS-CoV-2 is also known to infect the cells of the [...]

AI-enabled imaging of the retina's network of veins and arteries can accurately predict cardiovascular disease and death, without the need for blood tests or blood pressure measurement, finds research published online in the British Journal of Ophthalmology. As such, it paves the way for a highly effective, non-invasive screening test for people at medium to [...]