The graphical representation depicts a novel method of detecting the SARS-CoV-2 N gene without amplification using a label-free electrochemical DNA biosensor-based printed circuit board gold electrode (PCBGE).

The graphical representation depicts a novel method of detecting Salmonella Typhi using a portable label-free electrochemical DNA biosensor-based printed circuit board gold electrode (PCBGE).

This paper presents the framework and control of a proposed water strider-liked robot, named as Portable Striding pH Tester (PSpHT) that is able to measure the water quality. PSpHT is designed with its leg and tip configurations made respectively from the light-steel beam and polypropylene-based material. The design of the leg is calculated and fabricated using Archimedes' principle. In addition, real-time software for use in a remote controlled pH data logger that strides the robot, called PSpHT-VI, is developed using radio frequency (RF) communication. The PSpHT is verified and validated by running two specific tests, which are striding topology test and real-time data Potential Hydrogen (pH) reading test. The tests were conducted in a lake within the campus of the Universiti Malaysia Pahang, Pekan.

The production of green hydrogen via photoelectrochemical (PEC) water splitting represents a promising pathway for sustainable energy generation, harnessing sunlight to split water into hydrogen and oxygen. At the heart of this technology are photoelectrode materials, which play a critical role in determining the efficiency, stability, and scalability of hydrogen production systems. This overview highlights the fundamental properties required for photoelectrodes, including suitable band gap, excellent light absorption capability, and stability in aqueous environments. We briefly discuss the performance of various material classes, highlighting their strengths and challenges, and addressing advances in surface engineering, including nanostructuring and protective coatings, which enhance efficiency and durability. In summary, this overview provides information on current trends in photoelectrode materials research and identifies prospective avenues for future progress that could serve as a guide for young researchers willing to explore the field. The information contained herein may also help expedite the commercialization of PEC-driven green hydrogen production.