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A Review of Recent Advances in Chromatographic Quantification Methods for Cyanogenic Glycosides.
Molecules
October 2024
College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou 225300, China.
Article Synopsis
- Cyanogenic glycosides are plant compounds that can produce toxic hydrogen cyanide, making their quantification important for assessing health risks from consumption.
- The review focuses on recent advancements in liquid chromatography techniques for measuring these compounds, including new stationary phases and mass spectrometry integration.
- It also addresses challenges like developing reliable reference standards and improving sample preparation, while emphasizing the need for quality control in various areas such as food safety and environmental monitoring.
Formation of acetonitrile (CHCN) under cold interstellar, tropospheric and combustion mediums.
Sci Rep
September 2024
Department of Chemistry, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE.
Article Synopsis
- The study investigates the formation of carcinogenic acetonitrile (CHCN) from the reaction of hydroxyl radicals (OH/O) with ethanimine (CHCH=NH) across various environments like interstellar space and combustion systems.
- Using advanced computational methods, the research outlines the reaction mechanism that leads to CHCN formation, including details on rate constants and branching fractions over a range of temperatures and pressures.
- Findings suggest that the formation of CHCN occurs efficiently and while its atmospheric lifetime is similar to other pollutants, its overall contribution to global warming is minimal; however, CHCN could potentially react with other atmospheric substances to produce harmful compounds.
Activation of Inert Supports for Enzyme(s) Immobilization Harnessing Biocatalytic Sustainability for Perennial Utilization.
Langmuir
September 2024
Analytical and Bio-analytical Laboratory, Department of Chemistry, Visva-Bharati, Santiniketan, West Bengal, India 731235.
Although Nature's evolution and intelligence have gifted humankind with noteworthy enzyme candidates to simplify complex reactions with ultrafast, overselective, effortless, mild biological reactions for millions of years, their availability at minute-scale, short-range time-temperature stability, and purification costs hardly justify recycling/or reuse. Covalent immobilization, particularly via multipoint bonds, prevents denaturing, maintains activities for long-range time, pH, and temperature, and makes catalysts available for repetitive usages; which attracts researchers and industries to bring more immobilized enzyme contenders in science and commercial progressions. Inert-support activation, the most crucial step, needs appropriate activators; under mild conditions, the activator's functional group(s) still present on the activated support rapidly couples the enzyme, preventing unfolding and keeping the active site alive.
View Article and Find Full Text PDFA novel photoelectrochemical aptasensor based on 3D flower-like g-CN/BiOI p-n heterojunction for the sensitive detection of kanamycin.
Anal Chim Acta
August 2024
School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory of Optoelectronic Materials and Sensor Components, School of Economics and Statistics, Guangzhou Key Laboratory of Sensing Materials & Devices, Centre for Advanced Analytical Science, Guangzhou University, Guangzhou, 510006, PR China; School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, 519082, PR China.
Background: Kanamycin (KAN) residues in animal-derived foods continuously enter the human body, which will pose serious threats to human health such as hearing loss, nephrotoxicity and other complications. Therefore, to sensitively detect KAN residues by a reliable technology is extremely urgent in food quality and safety. Compared with traditional methods being limited by cost and complexity, photoelectrochemical (PEC) biosensors benefit from some merits such as rapid response, excellent sensitivity and good stability.
View Article and Find Full Text PDFCyano-deficient g-CN for round-the-clock photocatalytic degradation of tetracycline: Mechanism and application prospect evaluation.
Water Res
August 2024
Key Laboratory of the Three Gorges Reservoir Region's Eco-environment of Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China. Electronic address:
Without light at night, the system for photocatalytic degradation of refractory organic pollutants in aquatic environments based on free radicals will fall into a dormant state. Hence, a round-the-clock photocatalyst (CCN@SMSED) was prepared by in situ growth of cyanide-deficient g-CN on the surface of SrMgSiO:Eu,Dy through a simple calcination method. The CCN@SMSED exhibits an outstanding oxidative degradation ability for refractory tetracycline (TC) in water under both light and dark conditions, which is attributed to the synergistic effect of free radical (•O and •OH) and non-radical (h and O).
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