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Title: Biogenic systems of mesoporous silica and its potential application in agrochemical delivery system

Authors: Peerzada Gh Jeelani; P. Swetha; Shanmuga Priya; C. Ramalingam

Addresses: Instrumental & Food Analysis Laboratory, Industrial Biotechnology Division, School of Bioscience & Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamilnadu, India; Department of Biotechnology, School of Bioscience & Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamilnadu, India ' Instrumental & Food Analysis Laboratory, Industrial Biotechnology Division, School of Bioscience & Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamilnadu, India; Department of Biotechnology, School of Bioscience & Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamilnadu, India ' Instrumental & Food Analysis Laboratory, Industrial Biotechnology Division, School of Bioscience & Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamilnadu, India; Department of Biotechnology, School of Bioscience & Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamilnadu, India ' Nano-Food Research Group, Instrumental and Food Analysis Laboratory, Division of Industrial Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamilnadu, India

Abstract: The efficacy of nitrogen inculcation by plants is relatively low, and this is a critical problem instance of environmental protection. Enhancement of nitrogen assimilation can be carried out through the refurbishing, producing and applying the controlled release fertilisers. Biogenic nano silica has been proposed as an unconventional material in the fabrication of controlled-release fertilisers. Mesoporous silica was synthesised from silica-rich biogenic wastes banana peel and groundnut shell. Ammonium phosphate [diammonium phosphate (DAP), monoammonium phosphate (MAP)] rich phosphorus fertilisers were loaded with mesoporous silica which facilitates controlled release. AFM, FT-IR, XRD and SEM characterise the loaded fertilisers and further studied for controlled and prolonged release in soil and water. The soil toxicity was evaluated against ecologically relevant microbes Bacillus spp, Pseudomonas spp, and Acetobacter spp.

Keywords: nitrogen fertiliser; controlled release; biogenic nano silica; banana peel; groundnut shell; soil toxicity; efficacy; ammonium phosphate; delivery system.

DOI: 10.1504/IJNT.2021.116173

International Journal of Nanotechnology, 2021 Vol.18 No.5/6/7/8, pp.545 - 560

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 21 Jun 2021 *

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