Prospects of using nanotechnology for food preservation, safety, and security.

The emergence of nanoscience and nanotechnology has opened up new horizons to researchers. In this regard, carbon nanomaterials are considered as the cornerstone of numerous investigations. Among various carbon nanostructures, “Carbon nanoparticles (CNPs)” have attracted a great deal of attention during the past few years due to their unique properties such as high surface area, non-toxicity, biocompatibility as well as simple and low-cost synthetic procedures via environmentally friendly routes. Thanks to these properties along with their interesting optical behavior, CNPs have found diverse applications in the fields of bioimaging, nanomedicine, photo/electro-catalysis, and bio/chemical sensing. Moreover, their fascinating electrochemical properties including high effective surface area, excellent electrical conductivity, electrocatalytic activity as well as high porosity and adsorption capability, turn them to potential candidate for electrochemical purposes particularly sensing. The recent article, comprehensively reviews the usage of CNPs in design and construction of electrochemical sensors. It starts with a brief introduction of their properties and synthesis methods, then presents the electrode modification procedures, and finally come up with an overview of the proposed electrochemical sensing platforms based on CNPs. We hope that the recent review article will illuminate new lights in the minds of researchers active in this area and incorporates to promote the activities in this field of research.

Electrochemical sensing based on carbon nanoparticles: A review

The extensive release of heavy metals into the natural water bodies has become globally prevalent from past few decades. Heavy metal toxicity is becoming a serious threat to human and the environment. Due to their prolonged half-life, potential accumulation in different parts of body, and non-biodegradability, metal ions are being obvious entities that can cause several hazardous health risks. A number of methods have been developed for the detection of heavy/toxic metals based on sensors. Among the various new technologies, chemical and optical nano sensors are emerging technology to detect toxic heavy metals. Several nano sensors have been developed using nano materials, synthesized from green or chemical methods. The nano sensors are convenient to prepare and provide enhanced limit of detection, limit of quantification, and onsite detection. This review covers the recent work reported from 2013 to 2019 for the detection of heavy metals using sensors based on nano materials synthesized by different routes. Graphical abstract.

A review on detection of heavy metals from aqueous media using nanomaterial-based sensors

Advancement in science and technology of carbon dot-polymer hybrid composites: a review

The ever increasing release of wastes and pollutants due to rapid industrialization perilously impacts the environment and human lives The toxic chemicals are routinely released into the environment resulting in various forms of pollution One requisite towards controlling and managing the emission of toxic chemicals is the online monitoring and facile detecting the level of toxic chemicals; this can be achieved by the proper design and fabrication of plasmonic based sensors The plasmonic sensors have specific advantages over conventional analytical methods Ag nanoparticles (AgNPs) are one of the best plasmonic candidates that have been used in surface plasmon resonance (SPR)-based nanosensors for detection of various analytes including enzymes, chemical species and metallic ions This review summarized the latest published studies in usage of AgNPs-based plasmonic nanosensors with an emphasis on heavy metallic ions (Hg2+, Pb2+, Co2+, Cd2+ and Cu2+) It was attempted to shed more light on the sensing mechanisms namely “aggregation/anti-aggregation”, “oxidation/reduction” and “dimensional/morphological change” This mechanistic approach can be promisingly considered as a guide for the researchers

Ag nanostructures as the surface plasmon resonance (SPR)˗based sensors: A mechanistic study with an emphasis on heavy metallic ions detection

Fabrication characterization and potential applications of carbon nanoparticles in the detection of heavy metal ions in aqueous media

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Fabrication characterization and potential applications of carbon nanoparticles in the detection of heavy metal ions in aqueous media