Nanoporous metal oxides have a wide variety of applications, such as catalysts, electrodes, energy materials, sensors, and biomaterials. Recently, a team of researchers has demonstrated a novel synthesis method for their efficient and desirable preparation. Specifically, they prepared difficult-to-prepare quasi-single-crystalline inverse opal α-Fe₂O₃, demonstrating that crystal growth occurs in nanospace due to volatilization and oxidation of metal chlorides. This technology is expected to further the development of catalytic and energy conversion materials for carbon neutrality.

Until recently, the color variations observed in the petals of Saintpaulia were attributed to periclinal chimera or the influence of genetically distinct cell layers. Now, a new study by researchers from Japan has identified a single gene called SiMYB2 that regulates petal colors in Saintpaulia by producing two distinct mRNA transcripts. This study lays the foundation for future horticulture-related research and can aid the deliberate breeding of patterned flowers.

A research team led by Prof. HUANG Qing from the Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences has developed a new way to "edit" the internal layers of certain advanced materials, called MAX phases, in a breakthrough that could lead to entirely new kinds of two-dimensional (2D) layered materials with valuable technological uses.

Finishing techniques used to make cotton fabric smooth, water-resistant and less prone to wrinkling can contain formaldehyde or PFAS and be detrimental to the environment and the wearer. Now, researchers at North Carolina State University propose a method for using cottonseed oil as a greener and safer alternative to formaldehyde and PFAS when finishing cotton fabrics to make them more water-resistant. They will present their results at ACS Fall 2025.

Ultrahigh frequency bandwidths are easily blocked by objects, so users can lose transmissions walking between rooms or even passing a bookcase. Now, researchers at Princeton engineering have developed a machine-learning system that could allow ultrahigh frequency transmissions to dodge those obstacles.

Radio-photovoltaic cells, as a kind of nuclear battery, have a high energy density but low energy conversion efficiency (ECE). Scientists in China have developed a high-efficiency RPVC using multilayer-stacked GAGG:Ce scintillation waveguides and ⁹⁰Sr radioisotopes, which achieves a record ECE of 2.96%. Remarkably, the cells retain 86.2% of its initial performance after exposure to 50 years of equivalent irradiation at a milliwatt-level output. This breakthrough provides a maintenance-free power solution for extreme environments such as deep-sea exploration and space missions.

Dr. Seon Joon Kim and his team at the Korea Institute of Science and Technology (KIST)'s Convergence Research Center for SEIF have developed a "high-conductivity amphiphilic MXene" material that can be dispersed in water, polar and nonpolar organic solvents.