Ultraviolet–Visible Spectroscopy

Planets orbiting red dwarf stars may have a harder time hanging on to the conditions needed for life to arise and survive than previously thought, data from ...

A new computer vision technique developed by MIT engineers significantly speeds the characterization of newly synthesized electronic materials that could be used in solar cells, transistors, LEDs, and batteries.

The selective oxidation of aromatic C-H bonds has drawn significant attention in both industrial and fine chemistry due to its crucial role in converting readily- and cheaply-available aromatic hydrocarbons into high-value-added oxygenated products for diverse fields such as biology, medicine, fragrance, and agriculture.

The dark streaks in Venus' atmosphere — a potential sign of life, according to some researchers — can be explained by Iron-bearing sulfate minerals, a new...

How can butterflies help in detecting cancer?

A research team at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has proposed a new strategy for rapid and accurate detection of surface water quality by fusing the data from the ultraviolet-visible spectra (UV-Vis) and near-infrared (NIR) spectra of surface water.

Applying hydrostatic pressure as an external stimulus, Tokyo Tech and Keio University researchers demonstrate a new way to regulate singlet fission (SF), a process in which two electrons are generated from a single photon, in chromophores, opening doors to the design of SF-based materials with enhanced (photo)energy conversion. Their method overrides the strict requirements that limit the molecular design of such…

Researchers led by Prof. Zahng Tao at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences has synthesized two novel vinylene-linked two-dimensional covalent organic frameworks (v-2D-COFs) with isomeric structures via benzobisoxazole-mediated aldol polycondensation, showing distinct photocatalytic properties. The study was published in Journal of the American…

Semiconductor quantum dots (QDs) materials have shown great potential for applications in lighting and display fields due to their wide color gamut, adjustable emission wavelength, high quantum efficiency, high color saturation, and low processing cost. For example, QD materials based on cadmium and perovskite have made remarkable progress, but the use of toxic Cd and Pb has limited their further application.

That's not supposed to happen.

Hollow-structured supported metal catalysts (i.e. nanoreactor catalysts) with encapsulated active sites and well-defined shells provide an ideal place for multicomponents to react or transform cooperatively in an orderly manner, and efficiently have been recognized as one of the most popular catalyst candidates.

A research group has synthesized a 2D copper-based complex and expanded it into a 3D structure by adding H4SiW12O40 and rare earth metal. Through this synthesis method the team obtained three isostructural 3d−4f metal-incorporated POMs.

In the relentless battle against antibiotic-resistant superbugs, science continues to unveil ingenious strategies to address their vulnerability. Like other bacteria, superbugs have a unique weakness—their dependence on iron for growth and survival. Iron serves as an essential nutrient that bacteria utilize for various cellular processes, including DNA replication, energy production, and other vital functions. In…

The Kuiper Belt is a massive disk of icy bodies, including Pluto, that is located just outside of Neptune's orbit in our solar system. Objects observed in the Kuiper Belt exhibit a more diversified color range than any other solar system population, with colors ranging from white to dark reddish. While the source of this diversity in colors is unknown, scientists have speculated that it is likely the result of the…

Lithographically patterned perovskite nanocrystal arrays were used to determine radiation vectors from X-rays to visible light and the emission colours of the nanoparticles was used to create images of three-dimensional objects and for phase-contrast imaging.

Gel nails are "massively popular," but does a key step in the process raise your risk of skin cancer?

North Carolina State University researchers have demonstrated that a synthetic polymer can remove certain dyes from water, and that the polymer can be recovered and reused. The findings offer a new potential method for cleaning wastewater after use by textiles, cosmetics or other industries.

A research group in the doctoral program of Toyohashi University of Technology's Department of Electrical and Electronic Information Engineering that includes a doctoral student Hirotada Gamo and specially appointed assistant professor Jin Nishida, specially appointed associate professor Atsushi Nagai, assistant professor Kazuhiro Hikima, professor Atsunori Matsuda and others, developed a large-scale manufacturing…

/PRNewswire-PRWeb/ -- FireflySci, a leading manufacturer and distributor of cuvette products and UV/VIS spectrophotometer calibration standards, is thrilled to...

Surface-enhanced Raman scattering (SERS) is a powerful fingerprint analysis and detection technique that plays an important role in the fields of food safety, environmental protection, bio-imaging and hazardous substance identification. Electromagnetic enhancement (EM) and chemical enhancement (CM) are the two recognized mechanisms of action for amplifying Raman signals.