Scientists
Scientists in the United States have developed a new method for creating organometallic polymers that can facilitate carbon-carbon bond formation and anionic polymerization reactions. The research team, led by A.G. Tennyson, used ultrasonication to break the palladium-pyridine bond in the polymer, releasing a pyridinium salt that can be used
Scientists
Scientists in Changchun, People's Republic of China, have successfully developed a nonenzymatic amperometric sensor for hydrogen peroxide and glucose using a Pt nanoparticles/ordered mesoporous carbon nanocomposite. The novel sensor exhibits improved current response towards hydrogen peroxide and offers a linear range from 2 to 4212 microM. Additionally,
Scientists
Researchers from Seoul National University in South Korea have conducted an in-depth study on the properties of platinum nanoparticles, demonstrating their potential for surface-enhanced Raman scattering. The team, led by K. Kim, used a multistep seed-mediated growth method to produce nanoparticles with diameters ranging from 28 to 105 nm. Their
Nanotechnology
Solid-state NMR spectroscopy has been employed to investigate the interaction between L-cysteine and gold nanoparticles. The study, conducted by A. Abraham and colleagues at West Virginia University, has provided new insights into the structure of the gold-cysteine complex. The researchers discovered that there are two types of cysteine molecules in
Nanotechnology
A team of researchers led by E. Muthuswamy at Wayne State University has discovered an unexpected reactivity in oxide nanoparticles, allowing for their transformation into phosphides or sulfides through solution-phase reactions with trioctylphosphine (TOP) or sulfur, respectively. This approach has been demonstrated to be effective for Ni, Fe, and Co,
Nanotechnology
Research conducted by scientists at Tsinghua University in Beijing, China, has investigated the crystallization and melting behaviors of poly(vinylidene fluoride) (PVDF) in the presence of small amounts of nanoparticles, including montmorillonite (MMT), SiO2, CaCO3, and polytetrafluoroethylene (PTFE). The team's findings suggest that the addition of these nanoparticles
Nanotechnology
Researchers at the University of Delhi, India have successfully prepared zinc oxide (ZnO) nanoparticles using an electroexploding wire (EEW) technique. The process involves a wire-plate system powered by 12V batteries, resulting in the formation of polycrystalline ZnO nanoparticles. The researchers used X-ray diffraction (XRD) and Raman analyses to study the
Universities and colleges
Researchers at the University of California have developed a modified telomeric repeat amplification protocol (TRAP) assay that allows for the detection of telomerase activity in complex, interferant-laced samples. This breakthrough has significant implications for cancer diagnosis and treatment. The new assay, which uses primer-modified gold nanoparticles, exhibits excellent sensitivity and
Universities and colleges
Scientists at Rice University have developed a new technique to create three-dimensional (3D) microenvironments in hydrogels, mimicking the complex physiological tissue environment. The use of two-photon absorption laser scanning lithography (TPA-LSL) allows for the precise patterning of bioactive signals in a 3D space, essential for cellular systems to respond physiologically.
Universities and colleges
Researchers at National Chung Hsing University in Taichung, Taiwan, have conducted a study to analyze the nanotribological behavior and deformation characteristics of gallium nitride (GaN) epilayers grown on c- and a-axis sapphire substrates. The team used metal organic chemical vapor deposition to form the GaN epilayers and the nanoscratch technique
Universities and colleges
Researchers in Shanghai, People's Republic of China, have developed an improved process for preparing MWNTs/polyester thin film nanocomposite membranes. This new process involves interfacial polymerization of trimesoyl chloride (TMC) and triethanolamine (TEOA) solution containing MWNTs, followed by immersing the support membrane into the organic phase. The improved
Scientists
Researchers at the Catholic University of Louvain have successfully synthesized supported palladium nanoparticles with different diameters using the water-in-oil microemulsion method. The materials were characterized by various physicochemical methods, including X-ray photoelectron spectroscopy (XPS), inductively coupled plasma atomic emission spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), and H-2 chemisorption.
