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157 articles for “UV-Spectroscopic”
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Antifungal Activity of Zero-valent Iron Nanoparticles Synthesized by Green Protocols Using Camellia sinensis Extract against Pathogenic Aspergillus Species
Abstract: Zero-valent iron nanoparticles with potential antifungal activity were synthesized following a green protocol using Camellia sinensis leaves extract. FeSO4.7H2O was reduced to black metallic iron by Camellia sinensis leaves extract. The green synthetic procedure without using any hazardous chemical reagents is hopeful which reduces the possibility of chemical pollution. The synthesized nanoparticles were characterized by UV/visible and fluorescence spectroscopies. The surface morphology, size, shape and particle distribution were studied using …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 8, Issue 3, 2017 · pp. 40–45 Read article
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Anti-tumour Effects of Green Synthesis of Silver Nanoparticles from Helicteres isora L: In Vitro Approach
Abstract: Green synthesized silver nanoparticles preparation from 1mM AgNo3 solution through the fruit extract of Helicteres isora. in the range of 24–30 nm with increased stability and enhanced anti-tumour potency were reported in this present study. Green synthesized silver nanoparticles from fruit extract of H. isora (Hif-AgNPs) were characterized by using UV-VIS absorption spectroscopy and the morphology of the nanoparticles was characterized by transmission electron microscopy (TEM). The anti-tumour efficacy was …
Published in Trends in Drug Delivery · Vol. 5, Issue 1, 2018 · pp. 1–5 Read article
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Green Synthesis and Characterization of Silver Nanoparticles by Using Aloe vera Plant Extract
Abstract: Silver nanoparticles (Ag NPs) are important materials that have been studied extensively. Biosynthesis of Ag NPs from plants has an important role in biomedical science and drug discovery application. Green synthesis of Ag NPs is a growing research area because of their potential applications in nanomedicines. Hence, in the present study, we investigated the green synthesis of Ag Nps from silver nitrate using leaves extracts of Aloe vera. The synthesized …
Published in Trends in Drug Delivery · Vol. 6, Issue 3, 2019 · pp. 30–35 Read article
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Polymer-Mediated Electron Transfer in Eco-Friendly P3HT–rGO Nanocomposites for Optoelectronic Applications
Abstract: Conducting polymer–graphene hybrid nanocomposites have emerged as promising materials for next-generation optoelectronic applications owing to their solution processability, tunable interfacial properties, and mechanical flexibility. Recent studies have highlighted the importance of graphene–polymer hybrid systems in enhancing charge transport pathways, exciton dissociation efficiency, and interfacial stability in organic optoelectronic devices. Despite these advantages, a key challenge remains the efficient production of individual graphene sheets through the reduction of graphene oxide using …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 413–423 Read article
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Synthesis, Characterization and Applications of Poly (2-Methyl Aniline-co-2-Chloro Aniline) and Poly (2-Methyl Aniline-co-2-Chloro Aniline)-Nanocomposite-CuO
Abstract: The copolymer and its composite, poly (2-methyl aniline-co-2-chloro aniline) and poly (2-methyl aniline-co-2-chloro aniline)-nanocomposite-CuO respectively were synthesized by chemical oxidative polymerization method using ammonium persulphate as oxidant, sodium lauryl sulphate as surfactant and HCl as dopant. The synthesized copolymer and composite were characterized by FTIR, UV-Visible and 1H NMR spectroscopy. The thermal stability was determined by TGA/DTA. The copolymer and copolymer nanocomposite with CuO were found to be thermally more …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 3, 2016 · pp. 35–45 Read article
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Improved Photocatalytic Activity for Removal of Methylene Blue Dye from Aqueous Solutions with La2O3-Modified Ceria Heterostructured Binary Oxide Nanocomposite Particles
Abstract: The current study aimed to examine the photocatalytic efficacy of a bimetallic CeO2-La2O3 hetero-NC in comparison to monometallic CeO2 and La2O3 nanoparticles (NPs), utilizing Methylene Blue (MB)as pollutant sample under natural solar and UV irradiation. The coprecipitation method was utilized to produce a bimetallic CeO2-La2O3 hetero-NC. Following this, the nanostructures underwent characterization through various techniques including FT-IR, FE-SEM, XRD, UV Vis- DRS, Raman, and Photoluminescence spectroscopy. The catalytic activity of …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 514–532 Read article
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Electrical Conductivity and Antibacterial Studies on Chemically Synthesized Poly (2-Methyl Aniline-co-2-Chloro Aniline)-Blend-Polyurethane
Abstract: AbstractElectrically conducting copolymer blend, poly (2-methyl aniline-co-2-chloro aniline)-blend-polyurethane has been synthesized chemically by oxidative polymerization technique using 0.3 M ammonium persulphate (APS) as oxidant, 0.1 M of the anionic surfactant, sodium lauryl sulphate and 1 M HCl as dopant. The formation of the copolymer blend has been confirmed by comparison with the spectral data obtained for the copolymer which was synthesized under the same conditions and characterized. The copolymer blend …
Published in Journal of Polymer & Composites · Vol. 5, Issue 1, 2017 · pp. 7–14 Read article
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Evaluation of Antibacterial Activities of Environmental Benign Synthesis of Silver Nanoparticles using the Flower Extracts of Plumeria Alba Linn.
Abstract: Green nanoparticle synthesis has been achieved using environmentally acceptable plant extract and ecofriendly reducing and capping agents. However, development of green nanotechnology is generating interest of researchers toward ecofriendly biosynthesis of nanoparticles. In this study green synthesis of stable silver nanoparticle was done using the flower extract of Frangipani (Plumeria alba). The formation of silver nanoparticles was apparently displayed within 2 min with evidence of surface plasmon bands (SPB) between …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 3, Issue 3, 2013 · pp. 13–20 Read article
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Growth and Studies of Strontium Chloride Doped Ammonium Dihydrogen Phosphate Crystals
Abstract: Single crystals of undoped ammonium dihydrogen phosphate (ADP) and strontium chloride doped ammonium dihydrogen phosphate were grown by a solution method. It is found that SCADP crystal belongs to the tetragonal crystal system with I-42d space group. It is seen that both undoped and strontium chloride doped ADP crystals crystallize in the same tetragonal system and the incorporation of dopant does not alter the crystal system. This is due to …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 2, 2019 · pp. 89–100 Read article
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Sustainable Innovations in Green Nanotechnology for Nanoparticle Synthesis
Abstract: Green nanotechnology is an emerging field that focuses on the environmentally friendly production of nanoparticles through biological and sustainable processes. This approach has diverse applications across industries such as pharmaceuticals, energy, electronics, and bioengineering. Compared to conventional methods, biologically driven nanoparticle synthesis, particularly utilizing green chemistry principles, offers a safer, eco- friendly, non-toxic, and cost-effective alternative. Metal nanoparticles are commonly synthesized through top-down and bottom-up strategies using physical, chemical, and …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 3, Issue 1, 2025 · pp. 31–37 Read article
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Thermodynamic, Kinetic and Mechanistic Investigations of Ruthenium(III) Catalyzed Methylparaben Oxidation by Diperiodatocuprate(III) in Aqueous Alkaline Medium
Abstract: The kinetics of ruthenium(III) catalyzed degradative oxidation of methylparaben by the copper complex, diperiodatocuprate(III) in alkaline medium is studied at 25ºC and at a ionic strength of 8.0 × 10−2 mol dm−3. In the presence of catalyst ruthenium(III), the reaction between methylparaben and diperiodatocuprate(III) in aqueous alkaline medium exhibits 1:1 stoichiometry. The oxidation products were identified by UV-visible, GC-MS and IR spectroscopy. The reaction exhibited unit order in case of …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 1, 2015 · pp. 4–17 Read article
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Preparation of Phase – Pure Nanocrystalline Anatase and Rutile TiO2 using Hydrolysis of TiCl4 in presence of surfactants
Abstract: Hydrolysis of TiCl4 was carried out in two different ways to prepare nano crystalline TiO2. In the first method the hydrolysis of TiCl4 was carried under high acidic conditions at low temperature. In the second method hydrolysis was carried out using (NH4)2SO4 as an additive. It can be seen that the hydrolysis of TiCl4 under high acidic conditions promotes the growth of rutile phase of TiO2, where as hydrolysis in …
Published in Journal of Materials & Metallurgical Engineering · Vol. 8, Issue 1, 2018 · pp. 31–40 Read article
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Synthesis, Characterization and Antibacterial Evaluation of Novel Canola Oil-Based Poly-(Citrate/Succinate)-amide Incorporated with Zn (II) and Ni (II) Metal Ions
Abstract: This present research study is to fabricate efficient metal-incorporated Canola oil (CO) polymers synthesised using dicarboxylic acids – Citric acid (CA) and Succinic acid (SA). The research mainly highlights the fabrication of polymeric materials using CO via a safer chemical synthesis route with less toxic reactants and minimal solvent/diluent to accomplish sustainability, adopting the green chemistry principle. Divalent Zinc (Zn) and Nickel (Ni) were incorporated in the poly-(Citrate/Succinate)-amide matrix, Ni …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 45–69 Read article
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Synthesis, Characterization and Antibacterial Activity of Mono- and Binuclear Co(II) and Cr(III) Mixed-Ligand Complexes Derived from α-Amino Acid and 1,10- Phenanthroline with 1,3-Diaminopropan as a Spacer
Abstract: Mixed-ligand complexes of Co(II) and Cr(III) ions were synthesized from the reaction of metals chloride salts with α-amino acid (H2L1) as a primary ligand and 1,10-phenanthroline (L2) as secondary ligand. The ligand 2-(benzo[d]thiazol-2-ylamino)-2-(2-hydroxynaphthalen-1-yl) acetic acid (H2L1) has been synthesized from the condensation reaction of inobenzothiazol with 2-hydroxy-1-naphthaldehyde in the presence of HCN as three components–one pot reaction. H2L1 considered as a tridentate chelater of ONO-coordination binding type toward the metals, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 107–120 Read article
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Green synthesis of Silver nanoparticles using leaf extract of Cyclea peltata and its Antimicrobial activity
Abstract: Nanotechnology is a reliable and enabling environment friendly process for the synthesis of nanoscale particles of structures ranging from approximately 1- 100 nm. Since the chemical synthesis of nanoparticles have adverse effect in medical applications, green synthesis of nanoparticles is in a huge need. Silver is one of the substances used in nanoformulation. Silver nanoparticles were successfully synthesized through silver nitrate through a simple green route using the clean, dried, …
Published in Research & Reviews : Journal of Botany · Vol. 8, Issue 2, 2019 · pp. 1–6 Read article
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Rapid Determination of Content of Etoricoxib in Pharmaceutical Formulations by Mid-Infrared Spectroscopy
Abstract: The present paper is an attempt to highlight a new technique FTIR-ATR along with its referenced validated method, UV spectrophotometric analysis. Different concentrations of etoricoxib were used as samples to draw standard plot. From different samples, a transmission spectrum was recorded according to the prominence of peaks. The present study has chosen the three most prominent peaks for analytical purpose in case of samples of etoricoxib and marketed formulations. All …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 4, Issue 3, 2013 · pp. 20–32 Read article
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Biosynthesis, Characterization and Antibacterial Studies of Silver Nanoparticles from Tamil Nadu Major Crop Anacardium occidentale
Abstract: Recent studies have shown that Silver Nanoparticles have physical, optical and catalytic properties. Present work involves the eco-friendly and reproducible synthesis of Silver Nanoparticles from the Anacardium occidentale leaves extract. The synthesized silver Nanoparticle from 1 mM AgNO3 solution through the leaf extract were characterizing was monitored using Ultraviolet-visible (UV-vis) spectrophotometer, Scanning electron microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX), X-ray powder diffraction (XRD) and Fourier transform infra-red spectroscopy (FT-IR).Scanning …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 20, Issue 3, 2018 · pp. 13–22 Read article
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Structural and Optical Properties of Nanocomposites of Polyethylene Oxide Embedded with Nano-ZNO
Abstract: Polymer nanocomposites have attracted significant attention in recent years owing to their unique properties and potential applications in a variety of fields. In this study, PEO-ZnO nanocomposites were prepared with different wt.% (5, 10 and 15) nano-ZnO particles incorporated into PEO matrix by a solution casting method. Structural and Optical properties of PEO-ZnO nanocomposites were studied. X-ray diffraction (XRD) studies suggest the incorporation of ZnO NPs into PEO matrix. The …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 586–600 Read article
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Extracellular Biosynthesis of Silver Nanoparticles using the Fungus Pleurotus ostreatus and their Antibacterial Activity
Abstract: In the present study, an eco-friendly process for the synthesis of nanomaterials using a fungus (Pleurotus ostreatus) has been attempted. The fungus supernatant of seed culture was used for the biosynthesis of silver nanoparticles. The aqueous silver ions were reduced to silver metal nanoparticles when treated with the fungal supernatant. After 72h of treatment, silver nanoparticles were obtained. These silver nanoparticles were characterized by UV–Vis spectroscopy, scanning electron microscopy (SEM), …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 2, Issue 2, 2012 · pp. 28–38 Read article
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A Study on Characterization of AA-AMPS-Pb Composite by Spectroscopic and Thermal Methods
Abstract: Spectroscopic and thermal properties of Acrylamide-acrylamide 2- methyl propane sulphonic acid (AA-AMPS) copolymer have been investigated by spectrophotometric, Fourier transform infrared (FTIR), differential scanning calorimetry (DSC) and scanning electron microscope (SEM) techniques. The UV absorption studies indicate the presence of lead nano particles and FTIR results suggest that complexation has been taken place between reactive groups of copolymer and lead ion. Due to the presence of lead nano particles thermal …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 1, 2018 · pp. 5–11 Read article