A pre-proof study in the Journal of Aerosol Science employs a series of spark discharges in a flowing gas environment to repeatedly manufacture silver nanoparticles using the hydrogen-assisted spark generation technique. Various compositions of H2-Ar mixtures were used as the carrier gas to comprehensively study how the hydrogen concentration affects the signal amplification achieved with silver nanoparticles in Raman spectroscopic investigations.
Recently, a team led by Prof. Yang Liangbao from Hefei Institutes of Physical Science, Chinese Academy of Sciences used the nano-capillary pumping action to automatically capture the target molecules into a smaller gap and achieve highly sensitive Surface-Enhanced Raman Spectroscopy (SERS) detection by constructing a multilayer nanoparticle film to form a natural gap of less than 3 nm between the layers.
Recently, a team led by Prof. Huang Qing at the Institute of Intelligent Machines, Hefei Institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS) have reported the fabrication of ultrasensitive biosensors based on Surface-enhanced Raman Spectroscopy (SERS) to detect the cancer metastasis related programmed death ligand (PD-L1) biomarker.
Researchers at Karolinska Institutet in Sweden have developed a tiny sensor for detecting pesticides on fruit in just a few minutes. The technique, described as a proof-of-concept in a paper in th .