Dr. Prathipkumar S was born on 03 July 1992, in Thiruvarur, Tamil Nadu, India. He completed his B.Sc. in Physics from A.V.V.M. Sri Pushpam College, Thanjavur in 2012. Thereafter, he completed his M.Sc in Physics from PSG College of Arts and Science, Coimbatore, in 2014. He worked as a project assistant in PSG IAS, Coimbatore from October 2014 to January 2016. He enrolled in the Ph.D program in the Department of Physics, National Institute of Technology, Tiruchirappalli, in 2016 as a full-time research scholar. His thrust area of research is polymer nanocomposites for photodetector applications. To his credit, he has published more than 12 papers in international peer-reviewed journals . He is currently working as Scientific officer at SRM Institute of Science and Technlogy, Chennai, India.
EDUCATION
National Institute of Technology, Tiuchirappalli, Tamilnadu, India.
M.Sc- PSG college of Arts and Science, Coimbatore, India.
B.Sc-AVVM Sri Pushpam College (Bharadhidasan university), India.g
RESEARCH INTERESTS
Polymer nanocomposites, Flexible electronics, Energy harvesting, Multiferroics, Photodetectors
Fruit Extract Mediated Formation of Luminescent Titanium Dioxide Nanometer-Sized Particles: An Innovative Strategy in Domain of Photodecomposition and Germicidal Properties G. Monikadevi, S. Vijayakumar, P. Vanathi, S. Prathipkumar, Mohammad Khalid Al‐Sadoon, P. Srinivasan, E. Vidhya Luminescence, 2024 Discoveries in nanotechnologies are placing a great deal of attention on greener strategies that use harmless substances and moderated reactions to promote healthy development. This work used a straightforward, innovative, and cost‐effective sustainable approach to produce bio‐augmented TiO2 nanometer‐sized particles (NMSP) by applying a water‐based extract of the star fruit as a stabilization and reduction agent. A variety of techniques, comprising UV–Vis, XRD, FT‐IR, FE‐SEM with EDAX, and TEM, have been employed to investigate the formed TiO2 NMSP. The germicidal properties of formed TiO2 NMSP towards germs have been investigated by implementing an agar‐based pore plate technique. Congo red and methylene blue dyes have been applied to assess photodecomposition activity. The TiO2 NMSP exhibited significant germicidal efficacy versus many pathogenic microbes. The maximum degradation percentages of Congo red and methylene blue were 89.2% and 83.7%, achieved after 60 and 70 min, respectively. Consequently, it is determined that the selected NMSP composition enhanced germicidal and photodecomposition capabilities. The combined effort may serve as an effective method for eliminating color degradation concerning effluent and could potentially be employed in the field of medicine to address antibiotic resistance.
Fabrication of Luminescent Titanium Dioxide Nanoparticles in a Biocompatible Approach: Its Potential for Photodecomposition and Germicidal Effects K. Sajeevan, S. Vijayakumar, S. Vasantha, S. Prathipkumar, Mysoon M. Al‐Ansari, P. Srinivasan, E. Vidhya Luminescence, 2024 The fabrication of the green strategy of metallic oxide creation provides considerable profits via a minimum of effort, making it an acceptable substitute to the most laborious and challenging conventional processes. The suggested approach involved the creation of titanium dioxide (TiO2) nanoparticles through Orthosiphon stamineus extracts of leaves. The synthesized nanoparticles (NPs) were then characterized using XRD, FT‐IR, FE‐SEM with EDX, and UV–visible spectroscopy. UV–visible spectroscopy validated the presence of optical imperfections in the TiO2 NPs at frequencies of 286 nm. This research specifically focused on examining the photodecomposition and germicidal traits of NPs. Initiatives aimed must be made to mitigate the hazardous effects of TiO2 NPs in an ecologically sensitive way throughout their production. Exposing the dye methylene blue (MB), a major water polluting produced by garment manufacturing, to TiO2 NPs resulted in a considerable increase in photodecomposition efficiency. The photodecomposition process exhibited a rate of breakdown of 83%. The findings indicate that the diameter inhibition zone exhibits the most potent resistance versus pathogenic microorganisms. These results have led to the identification of a long‐term, sustainable, and ecologically beneficial solution for removing pollutants from water and biological properties.
Coconut husk waste products valorization for fabrication of luminescent titanium dioxide NPs as powerful tool for photodecomposition and food born infection: A sustainable strategy Sutharappa Kaliyamoorthy Thiyakarajan, Subramaniyan Vijayakumar, Kannan Sriban, Elavarasan Vidhya, Subramaniyan Prathipkumar, Mohammad Ahmad Wadaan, Raja Mythili Luminescence, 2024 Fabricating metal oxide nanoparticles has garnered much attention lately because creating safe chemicals, sustainable materials, economic processes, and renewable resources is becoming increasingly important. This research shows how TiO2 nanoparticles (NPs) could be generated in an ecologically responsible way using waste coconut husk with the help of tender coconut. This extract functions as both a reducing agent and a sealing agent. The investigation of TiO2 NPs exploited ultraviolet (UV), X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FT‐IR), and field‐emission scanning electron microscopy (FE‐SEM) with energy‐dispersive X‐ray (EDX) methods. The germicidal properties of TiO2 NPs against food‐borne pathogenic strains were studied using the agar well method. Employing Congo red pigment, the photodecomposition behavior was investigated. The TiO2 NPs produced had a crystallite size measuring 16.2 nm. The average grain size of the sample, as measured by FE‐SEM inspection, falls within the range of 15 to 25 nm. Impressive anti‐germ effects against food‐borne germs like Gram‐positive (Staphylococcus aureus and Listeria monocytogenes), Gram‐negative (Salmonella typhimurium and Escherichia coli) bacteria, and fungi (Candida albicans and Aspergillus niger) have been proved by the sustainable fabrication of TiO2 NPs. The catalytic effectiveness of Congo red decreased by 88% after 90 min. The findings suggest that sustainable synthesis of TiO2 NPs is an effective tool for food‐borne germicides and photodecomposition behaviors.
Development of polyvinylpyrrolidone-based zinc oxide nanocomposites: An outstanding and inexpensive biocide for use on germicidal and photodegradation vitality R. Dinesh, B. Sakthivel, S. Vijayakumar, S. Snega, Mohammed F. Albeshr, L. Praburaman, S. Prathipkumar, E. Vidhya Polymers for Advanced Technologies, 2024 An environmentally sustainable method was used to synthesize a novel class of biopolymer‐based PVP/ZnO nanocomposites (NCs) with pomegranate peel residue extract as a biosurfactant, zinc acetate as the primary material, PVP as the stabilizing substance and sodium hydroxide as the resolving product. Significant global concerns for human health and the environment are caused by the presence of disease‐causing microbes and toxic dyes in water supplies. Zinc oxide nanoparticles (ZnO NPs) exhibit exceptional photocatalytic and antibacterial efficacy toward reactive dye and bacterial strains. The microstructure of the NPs was analyzed by employing X‐ray diffraction (XRD), with a size of 20.24 nm. Investigation using field emission scanning electron microscopy (FE‐SEM) revealed the appearance of nanoflakes‐shaped PVP‐ZnO nanoparticles with a size ranging from 20 to 30 nm. The mixed composition of the nanoparticles was demonstrated using Fourier Transform Infrared Spectroscopy (FT‐IR), and an intensity of absorption at 346 nm was seen using UV–Vis spectroscopy. The PVP‐ZnO nanoparticles demonstrated exceptional photocatalytic efficacy, destroying about 90% of the reactive MB dye. The NPs exhibited antibacterial activity against E. aerogenes, S. aureus, P. aeruginosa, and K. pneumonia, with boundaries of inhibition of 21, 19, 18, and 16 mm, correspondingly. The results indicate that PVP‐ZnO nanoparticles may be efficiently employed for water purification, successfully removing both dye and pathogenic pollutants.
Assessment of luminescent copper nanomaterials as anti-germs, anti-proliferation efficiencies using green nano-strategy Vidhya Elavarasan, Subramaniyan Vijayakumar, Saad Aldawood, Selvankumar Thangaswamy, Subramaniyan Prathipkumar Luminescence, 2024 For the first time, we suggest using leaf extract from Ocimum americanum as the economically viable bio‐fabrication of copper nanomaterials. The residuals of leaf extract bio‐capping provide the stability of the nanomaterials in‐situ. UV–Vis and XRD confirmed the formation, with the UV–Vis spectrum of Cu‐NMs revealing a surface plasmon resonance characteristic peak at 350 nm. FT‐IR analysis was employed to examine the functional groups. FE‐SEM with EDX was used to assess the morphology and carry out an elemental analysis of the nanomaterials. Diffusion and MTT assays were used to study the antimicrobial and anticancer activities. The synthesized copper nanomaterials exhibited in‐vitro cytotoxicity against human skin cancer (A431) cell lines. Green nanomaterial was examined against the methylene blue dye, photodegradation was reduced by up to 90.6% within 50 minutes. The copper nanomaterials synthesized in our study exhibit promising applications in biomedicine and environmental pollution research.
Poly-vinyl-pyrrolidone capped luminescent zinc oxide nanocomposites as excellent tools for germicidal and photo-catalytic performances Prabhakaran Kala Praseetha, Subramaniyan Vijayakumar, Elavarasan Vidhya, Mohammad Ahmad Wadaan, Raja Mythili, Subramaniyan Prathipkumar Luminescence, 2024 Alternate antibiotics developed through the involvement of nanomaterials are gaining interest due to their economical and lower toxicity concerns. A newly developed biopolymer‐based polyvinylpyrrolidone/zinc oxide (PVP/ZnO) nanocomposite (NCs) was efficiently synthesized by an environment‐friendly approach, utilizing onion and garlic peel extract as a bio‐surfactant, zinc acetate as the source, PVP as the stabilizing agent, and sodium hydroxide as the precipitant. Fourier transform infrared spectroscopy (FT‐IR) and X‐ray diffraction (XRD) investigations verified the crystalline properties of ZnO, PVP, and PVP/ZnO‐based NCs. The structure of the biopolymer‐linked ZnO particles interpolated inside the PVP array was seen to have a layered and flaky structure, as validated by field emission scanning electron microscopy (FE‐SEM) analysis, which revealed its occurrence in the nanometer range. The XRD examination verified that the surface topographical image of PVP/ZnO NCs had an average thickness of 21 nm. The PVP/ZnO nanocrystals demonstrated exceptional photocatalytic efficacy, with a breakdown rate of 88% and almost 92% for the methylene blue dye. Therefore, the PVP/ZnO matrix exhibits superior antibacterial activity compared to other extracts, resulting in greater microbial suppression. The results above indicate that the ZnO‐intercalated PVP array has a stronger reinforcing effect than other components. Hence, PVP/ZnO nanocrystals exhibit enormous potential as a favorable substance for environmental and biomedical intentions.
Design of eco-synthesized nanocomposites (PVA/TiO2) for promising agents in germicidal and photodecomposition behaviors G. Vishnuvardhanraj, S. Vijayakumar, R. Muthukumaran, E. Vidhya, Mohammad Ahmad Wadaan, R. Mythili, S. Prathipkumar Polymers for Advanced Technologies, 2024 In recent decades, there has been a significant surge in enthusiasm surrounding the topic of nanotechnology due to the rapid progress of innovation. The enhanced benefits exhibited by nanoparticles (NPs) in comparison to micro‐materials provide a diverse array of applications. Sustainable synthesis is a very efficient technique for producing nanomaterials using a simple, rapid, and eco‐friendly approach. In this investigation, titanium dioxide (TiO2) NPs were produced by combining the residue of coffee extract with PVA/TiO2 as an anchor material. The use of PVA/TiO2 substrates was employed to enhance the surface area of TiO2 NPs to enhance their characteristics. The TiO2 NPs/PVA nanocomposites (NCs) were characterized using procedures. The TiO2/PVA NCs exhibited an absorbance peak at 319 nm in the ultraviolet–visible spectrum, and the particle size was calculated to be 19.2 nm based on the data obtained from FE‐SEM and x‐ray diffraction analysis. Furthermore, an investigation was conducted to examine the photodecomposition and germicidal properties of the TiO2/PVA NCs. The TiO2/PVA NCs showed remarkable germicidal efficacy against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa. The investigation focused on examining the photodecomposition performance of the TiO2/PVA NCs in the presence of methylene blue (MB). The MB dye exhibited the greatest photocatalytic activity, reaching 89% within 70 min. Hence, the findings of this study indicate that the TiO2/PVA NCs have promising characteristics for use as both germicidal and photodecomposition properties.
