Author
Lalit Varshney
Other affiliations: Homi Bhabha National Institute
Bio: Lalit Varshney is an academic researcher from Bhabha Atomic Research Centre. The author has contributed to research in topics: Grafting & Self-healing hydrogels. The author has an hindex of 27, co-authored 121 publications receiving 2043 citations. Previous affiliations of Lalit Varshney include Homi Bhabha National Institute.
Papers published on a yearly basis
Papers
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TL;DR: In this article, a series of superabsorbent hydrogels were prepared from carrageenan and partially neutralized acrylic acid by gamma irradiation at room temperature, and the gel fraction, swelling kinetics and the equilibrium degree of swelling were studied.
102 citations
TL;DR: In this article, aqueous polyvinyl alcohol (PVA) solution and in PVA hydrogel matrix have been gamma radiolytically reduced to produce Ag clusters.
77 citations
TL;DR: In this paper, the effect of depolymerized form of sodium alginate, produced by irradiating the latter by 60 Co gamma rays, was studied on Artemisia annua L. with regard to growth attributes, physiological and biochemical parameters and artemisinin content.
71 citations
TL;DR: In this paper, a simple colorimetric estimation of uric acid based on localized surface plasmon resonance (LSPR) band of polyvinyl pyrrolidone-capped-silver nanoparticles (PVP-Ag-NPs) is described.
Abstract: The quantitative determination of trace levels of uric acid has potential applications in the medical field. In this work, a simple colorimetric estimation of uric acid based on localized surface plasmon resonance (LSPR) band of polyvinyl pyrrolidone-capped-silver nanoparticles (PVP-Ag-NPs) is described. PVP-Ag-NPs were synthesized via gamma radiolytic route, thereby, avoiding the use of any external chemical reducing agent. These nanoparticles were characterized using UV–visible spectrophotometry, transmission electron microscopy (TEM), atomic force microscopy (AFM) and particle size analyzer (PSA). The silver nanoparticles prepared by this method were found to be of spherical shape with diameters 5.1 ± 1.6 nm. Radiation synthesized silver nanoparticles were then used as LSPR-based optical chemical sensors for detection and estimation of uric acid concentrations in human serum and bovine serum samples. The effect of PVP molecular weight on the uric acid detection efficiency of the system was also studied. It was observed that low molecular weight PVP (40 kD) gave better results as biosensor for uric acid estimation.
69 citations
TL;DR: In this paper, the effect of foliar spray of five concentrations of IC (20, 40, 60, 80 and 100) was studied on Mentha arvensis L. in terms of plant growth, physiological attributes, herbage yield and the content and yield of essential oil and its components.
64 citations
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TL;DR: A review of the literature concerning classification of hydrogels on different bases, physical and chemical characteristics of these products, and technical feasibility of their utilization is presented in this paper, together with technologies adopted for hydrogel production together with process design implications, block diagrams, and optimized conditions of the preparation process.
3,529 citations
TL;DR: Different treatment methods to treat the textile wastewater have been presented along with cost per unit volume of treated water, and the possible remedial measures to treat different types of effluent generated from each textile operation are recommended.
1,335 citations
TL;DR: There is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species, such as increased root growth, enhanced nutrient uptake, and stress tolerance.
Abstract: Plant biostimulants are diverse substances and microorganisms used to enhance plant growth. The global market for biostimulants is projected to increase 12 % per year and reach over $2,200 million by 2018. Despite the growing use of biostimulants in agriculture, many in the scientific community consider biostimulants to be lacking peer-reviewed scientific evaluation. This article describes the emerging definitions of biostimulants and reviews the literature on five categories of biostimulants: i. microbial inoculants, ii. humic acids, iii. fulvic acids, iv. protein hydrolysates and amino acids, and v. seaweed extracts. The large number of publications cited for each category of biostimulants demonstrates that there is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species. The cited literature also reveals some commonalities in plant responses to different biostimulants, such as increased root growth, enhanced nutrient uptake, and stress tolerance.
1,305 citations
TL;DR: An extensive review of recently published experimental parameters and results for the destruction of organic compounds via activated persulfate is presented, and focus is placed on emerging methodologies and manipulation of traditional activation techniques.
978 citations