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Gold nanoparticles (AuNPs) are one of the most important nanoparticles, and they have been widely used for medical and non-medical applications as ideal material because of their unique distinct features: inert, biocompatible, and especially due to low toxicity.
Gold (Au) nanoparticles have tunable optical and electronic properties and are used in a number of applications including photovoltaics, sensors, drug delivery & catalysis.
The use of gold nanoparticles as biosensors in food safety serves to guarantee the excellence and authenticity of food items and aid in the mitigation of foodborne diseases, rendering them a highly auspicious instrument in monitoring and regulating food safety.
Gold nanoparticles (AuNPs) are nanoscale particles of gold, typically ranging in size from 1 to 100 nanometers (nm). These nanoparticles exhibit unique physical, chemical, and optical properties that differ from bulk gold, making them attractive for various applications in medicine, catalysis, electronics, and sensing.
Gold nanoparticles are famously used in various biological applications due to their unique physicochemical properties such as easy synthesis, easy surface modification, biocompatibility, non-toxicity, large surface-to-volume ratio, and size tunability.
Due to their flexibility in synthesis and functionalization, GNPs have been profoundly used in cancer treatment as well as, antiviral, and antibacterial agents. In addition, owing to possessing unique optical properties, GNPs have been utilized as molecular imaging and contrast agent.
Gold nanoparticles (AuNPs) are extremely promising objects for solving a wide range of biomedical problems. The gold nanoparticles production by biological method (“green synthesis”) is eco-friendly and allows minimization of the amount of harmful chemical and toxic byproducts.