Silica Nanoparticles from Coir Pith Synthesized by Acidic Sol-Gel Method Improve Germination Economics

Polymers

Rajiv Periakaruppan¹  G. M. Gokul¹  Ananthan Anbukumaran²  Andrea Bohatá³  Pavel Kříž³  Pavel Olšan³  Jan Bárta³  Pavel Černý³  Anna Maroušková⁴  Josef Maroušek⁴ 

[1] Department of Biotechnology, Karpagam Academy of Higher Education, Coimbatore 641021, India;Department of Microbiology, Urumu Dhanalaksmi College, Tiruchirapalli 620019, India;Faculty of Agriculture, University of South Bohemia in Czech Budejovice, 37005 České Budějovice, Czech Republic;Institute of Technology and Business in Czech Budejovice, Faculty of Technology, 370 01 České Budějovice, Czech Republic;

关键词: silica nanoparticles;    coir pith;    sustainability;    phytochemical analysis;    bioeconomy;   

DOI  :  10.3390/polym14020266

来源: DOAJ

【 摘 要 】

Lignin is a natural biopolymer. A vibrant and rapid process in the synthesis of silica nanoparticles by consuming the lignin as a soft template was carefully studied. The extracted biopolymer from coir pith was employed as capping and stabilizing agents to fabricate the silica nanoparticles (_nSi). The synthesized silica nanoparticles (_nSi) were characterized by ultraviolet–visible (UV–Vis) spectrophotometry, X-ray diffraction analysis (XRD), Scanning Electron Microscope (SEM), Energy-Dispersive X-ray Analysis (EDAX), Dynamic Light Scattering (DLS) and Fourier-Transform Infrared Spectroscopy (FTIR). All the results obtained jointly and independently verified the formation of silica nanoparticles. In addition, EDAX analysis confirmed the high purity of the _nSi composed only of Si and O, with no other impurities. XRD spectroscopy showed the characteristic diffraction peaks for _nSi and confirmed the formation of an amorphous nature. The average size of _nSi obtained is 18 nm. The surface charge and stability of _nSi were analyzed by using the dynamic light scattering (DLS) and thus revealed that the _nSi samples have a negative charge (−20.3 mV). In addition, the seed germination and the shoot and root formation on Vigna unguiculata were investigated by using the _nSi. The results revealed that the application of _nSi enhanced the germination in V. unguiculata. However, further research studies must be performed in order to determine the toxic effect of biogenic _nSi before mass production and use of agricultural applications.

【 授权许可】

Unknown