Department Of Environmental Science And Technology

Permanent URI for this communityhttps://kr.cup.edu.in/handle/32116/84

Browse

Subject: search.filters.subject.Biosensor

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Detection and remediation of pollutants to maintain ecosustainability employing nanotechnology: A review
    (Elsevier Ltd, 2021-05-17T00:00:00) Yadav, Neelam; Garg, Vinod Kumar; Chhillar, Anil Kumar; Rana, Jogender Singh
    Environmental deterioration due to anthropogenic activities is a threat to sustainable, clean and green environment. Accumulation of hazardous chemicals pollutes soil, water and air and thus significantly affects all the ecosystems. This article highlight the challenges associated with various conventional techniques such as filtration, absorption, flocculation, coagulation, chromatographic and mass spectroscopic techniques. Environmental nanotechnology has provided an innovative frontier to combat the aforesaid issues of sustainable environment by reducing the non-requisite use of raw materials, electricity, excessive use of agrochemicals and release of industrial effluents into water bodies. Various nanotechnology based approaches including surface enhance scattering, surface plasmon resonance; and distinct types of nanoparticles like silver, silicon oxide and zinc oxide have contributed significantly in detection of environmental pollutants. Biosensing technology has also gained significant attention for detection and remediation of pollutants. Furthermore, nanoparticles of gold, ferric oxide and manganese oxide have been used for the on-site remediation of antibiotics, organic dyes, pesticides, and heavy metals. Recently, green nanomaterials have been given more attention to address toxicity issues of chemically synthesized nanomaterials. Hence, nanotechnology has provided a platform with tremendous applications to have sustainable environment for present as well as future generations. This review article will help to understand the fundamentals for achieving the goals of sustainable development, and healthy environment. � 2021 Elsevier Ltd
  • Thumbnail Image
    Item
    Advances in arsenic biosensor development - a comprehensive review
    (Elsevier Ltd, 2015) Kaur, Hardeep; Kumar, Rabindra; Babu, , J. Nagendra; Mittal, Sunil
    Biosensors are analytical devices having high sensitivity, portability, small sample requirement and ease of use for qualitative and quantitative monitoring of various analytes of human importance. Arsenic (As), owing to its widespread presence in nature and high toxicity to living creatures, requires frequent determination in water, soil, agricultural and food samples. The present review is an effort to highlight the various advancements made so far in the development of arsenic biosensors based either on recombinant whole cells or on certain arsenic-binding oligonucleotides or proteins. The role of futuristic approaches like surface plasmon resonance (SPR) and aptamer technology has also been discussed. The biomethods employed and their general mechanisms, advantages and limitations in relevance to arsenic biosensors developed so far are intended to be discussed in this review.