Application of biosynthesized metal nanoparticles in electrochemical sensors

Abstract

Recently, the development of eco-friendly, cost-effective and reliable methods for synthesis of metal nanoparticles has drawn a considerable attention. The so-called green synthesis, using mild reaction conditions and natural resources as plant extracts and microorganisms, has established as a convenient, sustainable, cheap and environmentally safe approach for synthesis of a wide range of nanomaterials. Over the past decade, biosynthesis is regarded as an important tool for reducing the harmful effects of traditional nanoparticle synthesis methods commonly used in laboratories and industry. This review emphasizes the significance of biosynthesized metal nanoparticles in the field of electrochemical sensing. There is increasing evidence that green synthesis of nanoparticles provides a new direction in designing of cost-effective, highly sensitive and selective electrode-catalysts applicable in food, clinical and environmental analysis. The article is based on 157 references and provided a detailed overview on the main approaches for green synthesis of metal nanoparticles and their applications in designing of electrochemical sensor devices. Important operational characteristics including sensitivity, dynamic range, limit of detection, as well as data on stability and reproducibility of sensors have also been covered. Keywords: biosynthesis; green synthesis; nanomaterials; nanotechnology; modified electrodes

Green synthesis of gum arabic platinum nanoparticle: Electrochemical sensor application for glyphosate detection

“…For all these reasons, the development of new green MNPs coupled with different metals like gold, silver, iron oxide synthesis based on GA has attracted a great deal of attention in numerous applications in biotechnology, medicine, and energy, however, data on their sensor technologies applications are still limited. 9 For this purpose, the objective of this paper is the green synthesis on metallic nanoparticles for electrochemical sensor application.…”

“…Moreover, the long biopolymer chain restricts the process of MNPs agglomeration, improving then their stability for months. For all these reasons, the development of new green MNPs coupled with different metals like gold, silver, iron oxide synthesis based on GA has attracted a great deal of attention in numerous applications in biotechnology, medicine, and energy, however, data on their sensor technologies applications are still limited 9 …”

“…To respond to these challenges, extensive research has gone into developing new alternative and sustainable methods for metallic nanoparticles preparation without the use of hazardous chemicals and preferably utilizing biological materials, thus adhering to the principle of green chemistry. [9][10][11] In fact, green synthesis offers several advantages over conventional means, which include eco-friendly, cost-effective, and simple experimental design, with minimal to zero toxic chemicals.…”

Electrochemical sensors for the safety and quality control of cosmetics: An overview of achievements and challenges

“…It provides protection against UV-induced photodamage and participates in the formation of skin barrier lipids and collagen in the dermis. Although the antipigmentary and skin-protective mechanisms of AA still need to be clarified, AA has been used widely as a skin-lightening, anti-aging, anti-oxidant and antiinflammatory agent in commercially available cosmetics such as creams and lotions, designed to protect and rejuvenate photoaged skin [20].…”

“…The so-called "green synthesis", using mild reaction conditions and natural resources such as plant extracts, has received more attention as a cost-effective and valuable alternative for environmentally safe and energy-efficient production of metal nanoparticles (MNPs) [20]. Unlike chemical and physical processes, bio-inspired synthetic methods restrict the use of toxic chemicals, energy and sophisticated instruments.…”