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524 articles for “crystallization”
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Piezoelectric Nanoparticles Loaded with Curcumin for Cancer Treatment
Abstract: Conventional cancer chemotherapy treatments are often compromised by systemic toxicity which starts from the lack of tumor specificity of administered anticancer drugs. The side effects limit the dose of the drug that can be administrated, making effective cancer treatment difficult. Nanoparticle-based drug delivery has the potential to overcome this challenge by targeted delivery to tumor and taking the advantage of tumor’s natural leaky vasculature to increase the accumulation of drug-loaded …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 6, Issue 2, 2016 · pp. 1–6 Read article
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SnO2 Nanoparticles: Preparation, Characterization and Humidity Sensor Application
Abstract: The microwave-assisted synthesis method is used to prepare SnO2 nanoparticles for the application of humidity sensor, because of oxygen vacancy in the lattice. Microwave-assisted method is very simple, low cost and rapid heating method. Room temperature ionic liquids and tin source were used in the reaction as precursors. The obtained SnO2 nanoparticles were characterized by X-ray diffractometer, particle size analyser, Fourier transform infrared spectroscope, and thermo gravimetric-differential thermal analyser. The …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 6, Issue 2, 2016 · pp. 29–35 Read article
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Influence of Dip Cycles on the Structural, Optical and Morphological Properties of CdS-SILAR Deposited Thin Films
Abstract: Cadmium sulphide (CdS) thin films were deposited on a glass substrate by a relatively simple and cost effective successive ionic layer adsorption and reaction (SILAR) method at temperature 80ºC at different deposition cycles. For a fine nanocrystalline thin film growth, the parameters include concentrations of cationic and ionic precursors, number of immersion cycles, and the immersion time. A study was made to know how dip cycles affects the structural, surface …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 6, Issue 3, 2016 · pp. 19–26 Read article
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Production of Ethanol from Rice Straw using Xylose Fermenting Yeast Isolates
Abstract: With increasing energy demand world-over, there is a need to develop cost effective technologies for the production of bio fuels using renewable sources such as lignocellulosic biomass. However, ethanol productivity is still low and the process is not economically viable. The major limiting factors include the complex and highly crystalline structure of lignocellulosics, low loading rate during saccharification and low amount of hexose and pentose sugars generated during saccharification. Distiller’s …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 2, Issue 3, 2012 · pp. 12–19 Read article
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Optimization of Microbial Cellulose Production by the Newly Isolated Acetobacter sp. DR-1 under Laboratory Conditions
Abstract: Cellulose is the most abundant natural biopolymer on the earth, synthesized by plants, algae and also some species of bacteria. It is also produced by some animals (e.g., tunicates).Cellulose constitutes one of the three principal components present in plant, namely cellulose, hemi-cellulose and lignin. However, the degree of polymerization and crystallinity of bacterial cellulose is considerable high than that of plant cellulose. In microbes, cellulose is normally produced as exo-polysaccharide, …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 1, Issue 1, 2011 · pp. 108–114 Read article
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Doping of Metal Precursors on Cadmium Selenide Quantum dots—A Review
Abstract: In this article, we review effects of doping on Cadmium-Selenide (CdSe) Quantum dots (QDs). Different dopants critically influence the properties and functionalities of nanocrystals (QDs). It is of strong interest to understand the structural characteristics of dopants and how they interact with the QDs. Differently, doped CdSe QDs were characterized by X-ray diffraction (XRD) technique, UV-Visible absorption spectroscopy, photoluminescence (PL) spectroscopy. The important results and measurements are discussed. CdSe quantum …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 7, Issue 3, 2017 · pp. 1–4 Read article
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Green Synthesis of Zinc Oxide Nanoparticles using Extracts of Ocimum Tenuiflorum and its Characterization
Abstract: Various applications of nanoparticles stimulate the need for synthesizing them. But, the conventional methods are usually hazardous and energy consuming. This leads to the focus on “green synthesis” of nanoparticles which was an efficient and eco-friendly approach. Natural diminishment operators are being investigated worldwide to limit the impacts of toxic chemicals utilized as a part of nanoparticles creation. The present study states a green approach for the synthesis of zinc …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 1, 2018 · pp. 9–19 Read article
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Morphological Studies of ZrO2 Prepared by Thermal Evaporation Technique
Abstract: Zirconium is the rare earth element used as superconductive element at low temperatures. It is extensively used for the chemical industry to protect corrosion alkalis and seawater. It is naturally acting as an insulator; it is very much helpful to the optoelectronic devices when it is used as oxides. ZrO2 is synthesized by using combustion synthesis, the as-prepared samples were pelletized, and this pellet was used in the thermal evaporation …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 3, 2018 · pp. 49–57 Read article
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Synthesis and Characterization of CeO2-ZrO2 Nanocomposites
Abstract: CeO2-ZrO2 nanocomposites were prepared by hydrothermal method and characterized by using XRD (X-ray diffractometer) to study the structural analysis of the prepared nanocomposites. The as-prepared samples were further annealed at 150º C and 300º C. From the structural studies crystal size and lattice parameter was calculated. FTIR analysis confirms the results of vibrational spectra and XPS, EDAX analysis confirms the elements presents in the composites. Effect of annealing in frequency …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 3, 2018 · pp. 21–32 Read article
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Synthesis and Synergistic Effects of Ciprofloxacin Conjugated Zinc Oxide Nanoparticles
Abstract: Zinc oxide nanoparticles (ZnO NPs) are known as a multifunctional material because of its unique physical and chemical properties. The result of zinc oxide nano powder was characterized using various analytical techniques, such as UV-Vis spectroscopy, Fourier Transform Infra-Red (FTIR), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) patterns. Synthesized zinc oxide nano powder was stored in dried form in the room temperature for further study. …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 1, 2019 · pp. 61–71 Read article
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Studies on the preparation and characterization of TiO2 thin film
Abstract: Titanium dioxide thin film was deposited on the class substrate by using Ti(C10H14O5), and characterized by using X-Ray diffractometer (XRD) and scanning electron microscopy (SEM), SEM analysis was discussed for 350º C. FTIR analysis gives the vibrational modes of vibrations of the material. The diffraction plane is (101) and crystal size was as 50 nm. The morphological studies of the sample inferred that the size was nearly in micrometer due …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 3, 2018 · pp. 58–64 Read article
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Green Synthesis of Selenium Nano-metalloid from the extract of Cabbage (Brassica oleracea var. capitata) leaf and its Antimicrobial Activities
Abstract: Green synthesis specifies the creation of nano-size particles (NPs) by a biological process using the reducing properties of metabolites in the plant extracts. The present work reports the use of cabbage (Brassica oleracea var. capitata.) leaf extract as a reducing and stabilizing agent to synthesize selenium nanoparticles (SeNPs) via the green route of synthesis. The as-prepared SeNPs were analyzed by UV–vis spectroscopy, FTIR, DLS, SEM, and EDX. Nano-crystalline SeNPs has …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 1, 2019 · pp. 12–20 Read article
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Phytosynthesis of silver nanoparticles using Calotropis gigantea flower extract and its antibacterial activity
Abstract: The present study involves the green synthesis of silver nanoparticles (AgNPs) using the extract of white Calotropis gigantea flowers. The AgNPs were characterized by UV-Vis spectroscopy, FESEM, XRD, FTIR analysis. A color change was observed at 384 nm indicating the synthesis of nanoparticles due to surface plasmon resonance. The average nanoparticle size was about 50 nm. XRD analysis showed that the AgNPs were crystalline and face centered in nature. FTIR …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 1, 2019 · pp. 53–60 Read article
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Catalytic Reduction of Organic Dyes with Green Synthesized Silver Nanoparticles using Aloe vera Leaf Extract
Abstract: In this present study, we report a facile, cost-effective and non-toxic method of synthesis of silver nanoparticles using 4mM silver nitrate and aqueous leaf extract of Aloe vera as reducing and capping agent in presence of 25% ammonia solution. Then these green synthesized nanoparticles are used as catalysts for the degradation of organic dyes. The synthesized silver nanoparticles (AVSNPs) were characterized using different techniques like UV-Visible spectroscopy, Fourier infrared spectroscopy …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 2, 2019 · pp. 9–21 Read article
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Study of CdS/AZO/FTO, CdS/FTO and CdS Thin Films Deposited by Modified Double Layer Thermal Evaporation
Abstract: The CdS/AZO/FTO, CdS/FTO and CdS thin films were deposited by a modified double-layer vacuum evaporation technique. The 90 nm of double-layer CdS thin films were prepared with the bottom layer 50 nm thick and the upper one was 40 nm thick and respective substrate temperatures were 100oC and 70oC. The physical properties of thus prepared films were characterized using X-ray diffraction (XRD), UV-VIS-NIR spectrophotometer, Hall Effect Measurement System and Scanning …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 2, 2019 · pp. 56–63 Read article
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Modified Solution Combustion Approach for Probing of Structural and Dielectric Properties of Sm3+ Doped GdAlO3 Nanoparticles
Abstract: A modified solution combustion approach was used in the preparation of nanosized Gd1xSmxAlO3 (x=1, 3, 5, 7, 9 mol%) using mixture of ODH and novel fuel E. tirucalli plant latex as fuels with corresponding metal nitrates. The structural morphology of synthesized and calcined powders are revealed using various analytical techniques such as Powder X-ray diffraction (PXRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 1, 2020 · pp. 16–25 Read article
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Extraction and Characterization of Nanocellulose from Saw Dust
Abstract: In this work, nanocellulose was extracted and fibrillated from wooden saw dust of Malaysian wood. The fibrillation of cellulose nanoparticles was done by two major steps such as chemical pre-treatment and acid hydrolysis. Firstly, the saw dust was pre-treated with alkali, and then de-waxing of saw dust was done. Then cellulose was extracted. Finally, it was chemically washed etc. The extracted chemically purified cellulose was further treated with acid hydrolysis …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 3, 2017 · pp. 43–48 Read article
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Excitation of Intra-4f Shell Luminescence of Cerium Ions by the Energy Transfer from Zn Nanocrystals
Abstract: Rare earth ion induced ZnO has improved electrical and optical properties that can find application in electronic and optoelectronic devices. When it is synthesised in nano regime the properties become much more useful for light emitting diodes and laser diodes. Here, stoichiometric CeO2:ZnO composite nanosized powder is synthesized by combustion method. XRD results reveal the formation of CeO2:ZnO composite nanopowders. Diffuse reflectance spectra reveal that there is an increment in …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 3, 2017 · pp. 32–42 Read article
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Synthesis and Surface Studies of ZnS/PVK Nanocomposites
Abstract: ZnS/PVK nanocomposites have been successfully prepared by chemical method. The optical and electrical properties of nanomaterials can be controlled by their particle size and therefore attracted much interest for their fundamental and applied aspects. The sizes of the particles were varied with different ZnS concentrations. The XRD pattern showed that the ZnS nanoparticles have zinc-blend structure and line broadening suggests the formation of the amorphous compound. The observations show that …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 20, Issue 2, 2018 · pp. 1–8 Read article
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Dielectric Studies of ZrO2 Semiconducting Oxide Materials and its Characterization
Abstract: Zirconium oxide powder was prepared by using the combustion method. Solution combustion synthesis was adopted to prepare the powder, urea and glycine act as fuels. The crystal size values were calculated its nearly equal to 74 nm. Naturally, bulk zirconium is the insulator, the reduction of size in nano will behave as a conductor, and its electrical and dielectric properties were reported here. The electric modulus M* is defined in …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 20, Issue 2, 2018 · pp. 26–35 Read article