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344 articles for “infrared”
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Amorphous Carbon Nanotube (ACNT), Two-dimensional Molybdenum Disulfide Nanosheets (MoS2) and Amorphous Carbon Nanotube-MoS2 Nanohybrids: A Brief Theoretical and Practical Analysis
Abstract: Recently, carbon nanotube and MoS2 nanosheets have been showing great interest in the field of nanoscience and nanotechnology for its exceptional physical, optical and electronic properties. The synthesis procedure of crystalline carbon nanotube is immensely tough for which researchers are focused on amorphous carbon nanotube. Single layer MoS2 with direct band gap shows better semiconductor behavior such as photoluminescence, makes them more acceptable in optoelectronic applications in comparison with graphene, …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 21, Issue 3, 2019 · pp. 1–13 Read article
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Synthesis and Characterization of Amorphous Carbon Nanotube-Molybdenum Disulfide (ACNT-MoS2) Nanohybrids using Sodium Molybdate Dehydrate and L-Cysteine as Precursor
Abstract: The discovery of graphene makes the researcher interested towards the other two-dimensional material which has quite similar properties like graphene. Among them, MoS2 nanosheets haves extraordinary optoelectronic and physical properties. It has several applications in developing battery, sensor, optoelectronic device etc. On the other hand, amorphous carbon nanotube can be synthesized by using a low temperature chemical process. Due to the ease processing of amorphous carbon nanotube (ACNT), good optoelectronic …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 21, Issue 3, 2019 · pp. 41–47 Read article
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A technical review and analysis of Surface Plasmon Resonance based Optical Fibre Sensors for exploiting oxides materials
Abstract: The review focuses on the most important contributions of oxides materials in the field of surface plasmon resonance in modern years. Surface plasmon resonance (SPR) based fiber optic sensor with indium oxide (In2O3) layer covered on the center of the optical fiber is displayed and theoretical examined. The sensitivity of the SPR based fiber optic sensor has been also assessed numerically. Itis indicated that the proposed SPR based fiber optic …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 22, Issue 1, 2020 · pp. 1–5 Read article
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Effect of the Annealing Temperature on CdS Nanoparticles Synthesized by Chemical Precipitation Technique and also Characterized for its Potential Technological Applications
Abstract: Cadmium Sulfide (CdS) nano particles are synthesized by chemical precipitation method. Cadmium Chloride and Thiourea are used as the precursor materials. Ammonia water & distilled water are used as solvent. The samples are annealed at 100°C, 300°C and 500°C for 1 hour. Transmission electron microscopy (TEM), Energy–dispersive X-ray spectroscopy (EDAX), and X-ray diffraction pattern (XRD) are used to study the morphologies, distribution, and crystallinity of the CdS nanoparticles and to …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 23, Issue 3, 2021 · pp. 20–28 Read article
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Development of PLLA-based Bio Inks Applicable in the Medical Field
Abstract: Some synthetic polymers, such as Poly (L-lactic acid) (PLLA), are interesting to use in 3D bioprinting because they can have adaptable and resilient mechanical properties that also facilitate bioprinting processes. PLLA is a biocompatible polymer which makes it very interesting for medical applications, it is an aliphatic polyester obtained from α-hydroxy acids in different ways: ring-opening polymerization, and direct polycondensation. The use of one path over the other depends on …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 24, Issue 2, 2022 · pp. 38–46 Read article
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Removal of Lead and Zinc from Industrial Waste water by Amla leaves Nano-bioadsorbent
Abstract: In the present research work, amla leaves (Phyllanthusemblica) were used for preparing nanobioadsorbent to remove heavy metals viz. Lead (Pb) and Zinc (Zn) present in wastewater. The major advantage of using amla leaves as bioadsorbent is its easy availability, abundance, low cost, biodegradable and eco-friendly nature. Prepared bioadsorbent was characterized by infrared spectroscopy (IR), SEM and BET techniques. Variation in the experimental conditions such as pH, adsorbent dosage, stirring speed …
Published in Journal of Water Pollution & Purification Research · Vol. 9, Issue 1, 2022 · pp. 6–15 Read article
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Correlation Between Tree Diversity and Spectral Variables of Sentinel-2 Images: A Study of Langtang National Park, Nepal
Abstract: This study was objectively conducted to explore the tree diversity of Langtang National Park (LNP), Nepal and show the correlation between spectral variables and tree biodiversity. Sentinel-2 MSI of LNP in Nepal was acquired from https://scihub.copernicus.eu/. Total 60 samples were collected from forest. Pearson correlation was established to show relationship between tree species diversity and reflectance values. Bagging LASSO algorithm was used to validate the model. Result shows that Shannon-Weiner …
Published in Journal of Remote Sensing & GIS · Vol. 13, Issue 2, 2022 · pp. 55–66 Read article
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Molecular structure, Vibrational spectroscopic, HOMO, LUMO, NBO, and NLO studies of 4-Cyano-2-methoxybenzenesulfonyl chloride
Abstract: The vibrational spectroscopic studies of 4-Cyano-2-methoxybenzenesulfonyl Chloride (4C2MBSC) were carried out. 4C2MBSC and its derivatives present in many biologically active compounds. The spectroscopic properties and chemical significance in particular, sulfonyl chloride and its derivatives have been studied extensively by spectroscopic (FTIR spectra) and theoretical methods. The infrared spectrum of this compound was recorded in condensed states. The molecular geometry, highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO), first …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 9, Issue 2, 2018 · pp. 8–18 Read article
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Synthesis, Characterization and Drug delivery Application of Poly (Safranine) based triblock copolymer
Abstract: Synthesis, characterization and humidity sensor application of poly(safranin) (PSaf) was carried out under inert atmosphere. The monomer to initiator ratio [M0/I0] was maintained accurately at 100. In order to improve the molecular weight and processability it was block copolymerized with bio-compatible and bio-degradable ε-caprolactone (CL) and water-soluble tetrahydrofuran (THF) separately. Thus, the derived triblock copolymer was subjected to humidity sensor application and the results are viewed in broad approach and …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 9, Issue 2, 2018 · pp. 1–7 Read article
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Synthesis, physicochemical and FTIR characterization of vegetable oil-based polyol from (Ximenia americana) seed oil.
Abstract: AbstractTo source for alternatives vegetable oil in the production of polyol, oil was extracted from Ximenia americana seed, and the oil yield was recorded to be 51%. Using standard methods, X. americana seed oil (XSO) was analyzed for its refractive index, density, acid value, peroxide value, iodine value and viscosity, and the results obtained were 1.3680, 0.867 g/cm3, 0.2805 mg KOH/g, 31.33 meqO2/kg, 92.46 mgI2/100 g, 225.23 Cp (at 25°C), …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 9, Issue 3, 2018 · pp. 23–28 Read article
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An eco-friendly synthesis of silver nanoparticles using Stoechospermum marginatum, its characterization and antioxidant study
Abstract: AbstractThe aqueous extract of marine brown seaweed, Stoechospermum marginatum was used for the green synthesis of silver nanoparticles. The silver nanoparticles were formed due to the bio-reduction of silver nitrate to aqueous silver ions in the presence of seaweed extract. The synthesized silver nanoparticles were characterized by UV-Visible Spectrophotometer, Fourier Transform Infrared (FT-IR) Spectroscopyand Atomic Force Microscope (AFM).The synthesised silver nanoparticles have shown moderate antioxidant activity. This method of AgNPs …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 10, Issue 1, 2019 · pp. 1–5 Read article
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Application and Characterization of Egg Shell
Abstract: AbstractEgg shell is discarded as wastes from different sources like hotels, houses etc. They were collected, purified and powdered by mixer. Eggshell powder is used as a fertilizer in a tomato plant and also is used as a calcium supplement for females. Extracted calcium from different egg shell was characterized for Fourier transform infrared spectroscopy (FTIR) data indicated the percentage of calcium in egg shell. pH of soil and percentage …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 4, Issue 3, 2015 · pp. 25–34 Read article
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Grafting of Methyl Methacrylate onto Starch Initiated by Ceric Ion as an Initiator in Presence of Nitric Acid as Activator
Abstract: Natural polymers with improved structure have been securing increasing value in the industry as theyare abundant, cheap, and biodegradable. Graft copolymerization is one of the effective ways toenhance the properties of natural polymers. Starch based graft copolymers are becoming increasinglyimportant due to their remarkable adhesion, high water absorbency, and biodegradability. Methylmethacrylate (MMA) grafted onto starch by using the ceric ammonium nitrate (CAN) as a redoxinitiator in the presence of nitric …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 12, Issue 1, 2021 · pp. 27–33 Read article
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A Mini-Review on Spectral (UV Visible, FT-IR, 1H NMR, GC-MS) Analysis of Various Shaded Dried Leaves Extracts
Abstract: To collect the different types of leaves in various places, wash collected leaves with distilled water and dried these leaves in various processes like under shade dry for 15 days, place oven (45 oC) for 1 hour. Grind well using the above-dried leaves, so these leaves are changed to powder form. Utilize these shaded dried leaves powder, to prepare extract with solvents like methanol, ethanol, hexane, carbon tetrachloride, petroleum ether, …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 1, 2022 · pp. 1–8 Read article
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Review on UV – Visible Spectroscopy and HPLC
Abstract: Like Fourier-transform infrared spectroscopy, UV-visible spectroscopy is used to determine the purity of pharmaceutical compounds. Many substances have chromospheres, which absorb certain wavelengths of ultraviolet or visible light. Using the Beer–Lambert equation, the absorption of spectra obtained from these samples at given wavelengths can be directly related to the sample concentration. Normally, UV and UV-visible spectra are recorded at high and low pH, and the results of both are compared …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 1, 2022 · pp. 43–54 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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Studies on the Proximate Composition of Yogurt Enriched with Pink Guava Powder
Abstract: Dietary fiber and bioactive chemicals, which have been extensively investigated for their potential health advantages, have recently found new uses in the food and dairy industries. Taking into account the present surge in demand of consumers, an effort is made to increase the nutritional parameter of yogurt, notably the amount of dietary fiber, by the incorporation of freeze-dried pink guava powder (FPGP). The yogurt was made by varying its concentration …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 12, Issue 1, 2023 · pp. 1–12 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
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Growth, Optical, Mechanical and Electrical Properties of Zinc Sulphate Admixtured N-N’-dimethylurea Single Crystals (DMUZS)
Abstract: AbstractThe single crystals of zinc sulphate admixtured N-N’-dimethylurea (DMUZS) were grown by slow evaporation technique from aqueous solution at room temperature. Good quality crystals of size 16×12×5 mm3 had been obtained after 35 days. The grown crystals were characterized by single crystal XRD analysis to determine the lattice constant of the sample. Powder X-ray diffraction studies confirm the crystalline nature of the grown crystal. Fourier transform infrared (FT-IR) studies were …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 1, 2018 · pp. 24–33 Read article
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A Study on Radiation Effects in Acrylonitrile-AMPS Copolymer
Abstract: Radiation behavior of Acrylonitrile AMPS copolymer has been investigated by Electron Spin Resonance (ESR), Fourier Transform Infrared (FTIR) techniques. Temperature dependent ESR studies indicate that free radicals responsible for irradiated copolymer decay at around 100°C. Presence of macro-radicals and polyene radicals is detected. FTIR spectra of copolymer of unirradiated and irradiated are compared and chemical groups influenced by gamma irradiation are identified. The studies suggest that chain cleavage occur either …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 2, 2018 · pp. 62–71 Read article