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31 articles for “UV-visible spectroscopy”
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Heterocyclic Oxadiazole Derivatives Through Various Spectroscopic Techniques as UV, IR.
Abstract: The study focuses on the synthesis, characterization, and analysis of heterocyclic oxadiazole derivatives using various spectroscopic techniques, including UV-visible (UV-Vis) spectroscopy and infrared (IR) spectroscopy. Oxadiazoles are a type of five-membered heterocyclic compounds with nitrogen and oxygen atoms. They are important in medical chemistry and materials research and show a wide range of biological activity. The synthesized oxadiazole derivatives were characterized through UV-Vis spectroscopy to investigate their electronic transitions and …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 1, 2024 · pp. 1–8 Read article
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Correlation for Photocatalytic Degradation Kinetics of Carboxylic Acids by Electrochemically Synthesized Cd/ZnO Nanoparticles and Study of Antibacterial Behaviour
Abstract: Cd/ZnO nanoparticle has been successfully synthesized by electrochemical method which is simple and inexpensive method. The synthesized Cd/ZnO nanoparticle was used has a catalyst for the photodegradation of Oxalic acid, Chloroacetic acid and Formic acid under various experimental conditions by volumetric method. The Cd/ZnO nanoparticles were characterized by various techniques such as SEM-EDAX, UV-Visible spectroscopy, FTIR-IR spectrum and X-ray diffraction studies. The study of UV-Visible spectroscopy revealed that the Cd/ZnO …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 2, 2020 · pp. 1–16 Read article
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Biosynthesis of silver nanoparticles using aqueous leaf extract of Muntingia calabura Linn.
Abstract: The present study was focused to synthesis silver nanoparticles using the aqueous leaf extract of Muntingia calabura L. as the reducing agent. The formation of silver nanoparticles was confirmed by colour change from light yellow to dark brownish red, UV-Visible Spectroscopy, FT-IR, X-Ray Diffraction Method (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray microanalysis spectroscopy (EDS). The nanoparticles showed an absorbance at 443nm on UV-Visible spectroscopy. The presence of …
Published in International journal of Nanobiotechnology · Vol. 4, Issue 1, 2018 · pp. 9–15 Read article
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Green Synthesis of Silver Nanoparticles using Aqueous Leaf Extract of Artabotrys odoratissimus R.Br.
Abstract: In the present study silver nanoparticles were synthesized using the aqueous leaf extract of Artabotrys odoratissimus R.Br. as the reducing agent. The formation of silver nanoparticles was confirmed by colour change from light yellow to dark brownish red, UV-Visible Spectroscopy, FTIR, X-Ray Diffraction Method (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray microanalysis spectroscopy (EDS). The nanoparticles showed an absorbance at 475.5nm on UV-Visible spectroscopy. Fourier Transform Infra-Red (FTIR) …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 1, 2018 · pp. 5–11 Read article
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Seaweed Mediated Biosynthesis of Silver Nanoparticles Using Gracilaria fergusonii J.Ag. Collected From Hare Island, Thoothukudi in the South East Coast of Tamil Nadu, India
Abstract: In the present study silver nanoparticles were synthesized using the aqueous extract of red seaweed Gracilaria fergusonii J.Ag. as the reducing agent. The formation of silver nanoparticles was confirmed by colour change from light yellow to dark brownish red, UV– visible spectroscopy, FT-IR, X-ray diffraction method (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray microanalysis spectroscopy (EDS). The anoparticles showed an absorbance at 442 nm on UV–visible spectroscopy. The …
Published in International Journal of Plant Biotechnology · Vol. 1, Issue 1-2, 2015 · pp. 50–57 Read article
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Synthesis, Structural Elucidation, and Antimicrobial Screening of a Cobalt (II) Coordination Compound Derived from a Thiophene-Containing Schiff Base
Abstract: Abstract An N, O-chelating azomethine Schiff base ligand (HL), chemically identified as 2-{[(thiophen-2-yl) methylidene] amino} benzoic acid, was synthesized by an equimolar condensation reaction between thiophene-2-carbaldehyde and anthranilic acid in absolute ethanol in the presence of a catalytic amount of acetic acid. The corresponding cobalt (II) complex, formulated as [Co(L)₂] · 2H₂O, was prepared by refluxing two equivalents of the ligand with one equivalent of cobalt (II) acetate tetrahydrate in …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 1–7 Read article
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Development of Azadirachta Indica Zinc Oxide Nanoparticles and their Prospective Role in Wastewater Treatment
Abstract: An advanced and eco-friendly method for development of nanoparticles is the fundamental role of Nanotechnology. In recent times, the domain of nanotechnology and nanoscience research has witnessed remarkable advancement, resulting in its colloquial name "tiny science." The convergence of nanotechnology and biology leads to the emergence of a highly sophisticated domain known as nanobiotechnology. Nanoparticles are considered the primary structural units in nanotechnology. These particles, referred to as NPs, are …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 10, Issue 1, 2024 · pp. 32–51 Read article
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Biosynthesis of Silver Nanoparticles for Mosquito Control
Abstract: Biological synthesis of nanoparticles has received increased attention due to a growing need to develop environmentally benign technologies in material synthesis. In present work, silver nanoparticles (AgNps) were synthesized intracellular by using Pseudomonas aeruginosa sp. The silver nanoparticles were characterized by transmission electron microscopy (TEM), UV–Visible spectroscopy (UV). Larvicidal activities of silver nanoparticles were analyzed as per the standard procedures. The P. aeruginosa synthesized AgNPs were found effective against the …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 1, 2017 · pp. 6–11 Read article
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Biosynthesis of Chitosan mediated nanoparticles for Preservation of Food and Its Antimicrobial activity
Abstract: In this study, chitosan nanoparticles were synthesized from chitosan polymer by ionic gelation method. The chitin was first extracted from Saccharomyces cerevisiae and then deacetylated to chitosan. The presence and characterization of chitosan nanoparticles was investigated by UV-Visible Spectroscopy (UV) and scanning electron microscopy (SEM). The antimicrobial property of these chitosan nanoparticles were studied against E.coli, S.aureus, S.typhi, P.aureginosa, C.albicans and A.niger and compare with chitosan polymer. CSNPs showed higher …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 1, 2017 · pp. 16–24 Read article
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Synthesis of chitosan mediated nanoparticles and its antimicrobial activity
Abstract: In this study, chitosan nanoparticles were synthesized from chitosan polymer by ionic gelation method. The chitin was first extracted from crab shell and then deacetylated to chitosan. The presence and characterization of chitosan nanoparticles was investigated by UV-Visible Spectroscopy (UV) and scanning electron microscopy (SEM). The antimicrobial property of these chitosan nanoparticles were studied against E.coli, S.aureus, S.typhi, P.aureginosa, C.albicans and A.niger and compare with chitosan polymer. CSNPs showed higher …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 2, 2017 · pp. 31–35 Read article
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Synthesis & Characterization of Fe3O4 Nanoparticles for Thermal Sensing Application
Abstract: n this work, Synthesis and characterization of magnetite (Fe3O4) nanoparticles by the co-precipitation method has been done. These nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR), UV-Visible spectroscopy (UV) and Thermogravimetry analysis (TGA/DSC). SEM image show morphology and porosity of material. The nanoparticles show quasi-spherical morphology with mean size around 37 nm. The XRD and FTIR confirmed the functionalization of the Fe3O4 nanoparticles. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 3, Issue 2, 2017 · pp. 10–19 Read article
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Synthesis, Crystal growth and Characterization of Lead acetate zinc (II)Sulphate Material
Abstract: Leadacetatezinc (II) Sulphate Crystal is synthesized by the addition of Leadacetate to Zinc sulphate in equimolar concentration (1:1ratio) to produce larger sized crystal but during the crystallization process a bulk of colourless precipitate was obtained and after filtration the crystals are formed in the filtrate after slow evaporation solution growth technique. Thus formed crystals from the filtrate is kept away and the precipitate formed during the crystallization process is characterized …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 1, 2023 · pp. 22–29 Read article
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Bio synthesis and characterization of Gold Nanoparticles
Abstract: Colloidal Gold has attained much attention in global nanotechnology market due to valuable application in biomedical, electronics and other field as well as are being widely used as Antimicrobial agents. In this research work Gold nanoparticle suspension has been synthesized by bio synthesis method using bamboo leaves and formation of colloidal gold has been confirmed by different characterization techniques UV visible spectroscopy, FTIR and DLS. Keywords: Nanotechnology, gold Nanoparticle UV …
Published in International journal of Nanobiotechnology · Vol. 4, Issue 2, 2018 · pp. 15–20 Read article
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To study the Properties of Bio Synthesized Silver Nanoparticles
Abstract: Recently colloids silver nanoparticles have attained much attention in global nanotechnology market due to valuable application for catalytic, biomedical, electronics and widely as Antimicrobial agents. In the present work author have synthesized and characterized the Colloids silver nanoparticles with three biosynthesis methods and the detail characterization of particle has been done by UV–Visible spectroscopy, AFM, FTIR, and with DLS techniques. Particles formation was conformed from UV spectra of nanoparticles. Size …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 1, 2018 · pp. 34–40 Read article
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Protein Determination and Soluble Amino Acids Prediction in Various Solvents Extracted Solutions of Indigenous Red Lentil and Moong Pulse through Direct UV- Visible Spectrophotometer Technique: A Comparative Study
Abstract: In this comparative study, direct protein determination have been done for indigenous Red lentil (Lens culinaris) and Moong pulse (Vigna radiata) (obtained from Muzaffarpur, Bihar) by UV-Visible spectroscopy in three different solvents viz. double distilled water (ddH2O), ethyl alcohol (C2H5OH), and methyl alcohol (CH3OH). A few amino acids in solutions have also been predicted (not characterized) based on their peaks observed in UV-region by comparing them with reported range of …
Published in International Journal of Plant Biotechnology · Vol. 9, Issue 2, 2023 · pp. 42–48 Read article
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Evaluation of Antimicrobial Activity using Zinc Oxide Nanoparticles
Abstract: The goal of the study was to use common laboratory techniques to create Zinc Oxide nanoparticles in a short amount of time and to check the antibacterial activity of zinc oxide nanoparticles on gram negative and gram positive bacteria. Wet chemical technique was used to make zinc oxide nanoparticles. Activity augmentation for Escherichia coli and Staphylococcus aureus were studied when used in combination with Zinc Oxide Nanoparticles. The Nps are …
Published in International Journal of Applied Nanotechnology · Vol. 7, Issue 1, 2021 · pp. 24–27 Read article
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Structural, Optical, and Antibacterial Properties of NiCr₂O₄/NiO Nanocomposite Synthesized by a Facile Microplasma Electrochemical Process
Abstract: Nowadays increasing severity of environmental pollution and antibiotic resistance poses significant global challenges, particularly due to the accumulation of organic pollutants from industrialization and the proliferation of antibiotic-resistant bacteria, which jeopardize ecosystems and public health. To address these issues, the development of advanced nanocomposites with photocatalytic and antimicrobial properties is of paramount importance. This article reports the synthesis of NiCr₂O₄/NiO nanocomposite conducted in the current study via atmospheric pressure microplasma …
Published in International Journal of Composite and Constituent Materials · Vol. 10, Issue 2, 2024 · pp. 1–12 Read article
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Sequential Extraction of Pectin and Cellulose from Orange Peel Waste: A Sustainable Waste-to-Valorization Approach
Abstract: Agricultural waste is a huge and underutilized resource of useful biomaterials that are best for sustainable use. The goal of the present study was to develop an integrated waste valorization approach, in which orange peel waste is valorized in the form of cellulose and pectin and their potential is assessed in combination with green synthesis of nanoparticles. Orange peel powder was treated with acid-assisted extraction to obtain pectin, and the …
Published in International Journal of Green Chemistry · Vol. 12, Issue 2, 2026 · pp. 19–29 Read article
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Fungal-Mediated Myco-Nanoparticle Synthesis Using Fusarium Species
Abstract: Green synthesis of nanoparticles is a developing technology known for its safe and environmentally friendly approach. Fungi possess essential features in fabricating biogenic nanoparticles of different metals due to their enzymatic capabilities. Myconanoparticles derived from Fusarium species are synthesized in multiple stages. The most utilized species for nanoparticle creation are Fusarium oxysporum and Fusarium solani. This study aims to investigate the growth and conduct microscopic inspection of Fusarium sp. The …
Published in International Journal of Applied Nanotechnology · Vol. 12, Issue 1, 2026 · pp. 8–17 Read article
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Synthesis of Nano-ZnO by Chemical Method and its Characterization
Abstract: Nanocrystals of ZnO were prepared by chemical method using Zn (II) acetate and potassium hydroxide as the starting materials and methanol as solvent. The material was characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), electron diffraction analysis (EDS), UV-Visible spectroscopy, Dynamic light scatteringanalysis (DLS) and Fourier transform spectroscopy (FTIR) techniques. The results indicated that the obtained ZnO material was in nano-dimension and possessed pure …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 1, 2022 · pp. 13–18 Read article