Electrochemical Biosensing of Bacteria and Biofilms

Current trends in COVID-19 diagnosis and its new variants in physiological fluids: Surface antigens, antibodies, nucleic acids, and RNA sequencing

“…is connected to a transducer to realize a chemical binding event for quantitative detection of a specific analyte [ 77 ]. Biosensors can detect various targets, such as toxins in water [ 78 ], allergens in food [ 79 ], biomarkers for chronic diseases [ 80 ], blood glucose [ 81 ], bacteria [ 82 ], biofilms [ 83 ], and drugs [ 72 ]. They are also used to detect various respiratory viruses, which can provide miniaturized, low-cost, sensitive, portable, and rapid platforms compared to conventional laboratory-based methods [ 73 ].…”

“…Rapid detection of viral infections using UV–Vis spectroscopy [ 83 ], Raman spectroscopy [ 95 ], and Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) [ 96 , 97 ] have been reported for predicting SARS-CoV-2 in blood, sera, plasma, infected cells, among others [ 98 ]. Zhang and coworkers [ 98 ] used ATR-FTIR for a SARS-CoV-2 detection in a time of 2–3 min using only ∼3 μL of serum sample.…”

Biosynthesis MgO and ZnO nanoparticles using chitosan extracted from Pimelia Payraudi Latreille for antibacterial applications

“…Given the growing concern about bio lm-associated infections and drug-resistant bacteria, the development of new antibacterial agents is a pressing concern [19,20]. The present work aims to isolate chitosan from beetle (Pimelia Payraudi Latreille) and then use the extracted chitosan to prepare MgO NPs and ZnO NPs.…”