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37 articles for “nanoengineering”
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‘Nano- A New Gambit joins the ongoing Battle against Cardiovascular Diseases’ I. Towards Nanocardiology
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Despite numerous advances, cardiovascular diseases are on the rise and continue to record high mortality worldwide. Thus an effective prevention of this will demand new diagnostic and therapeutic measures aimed at early, subclinical disease phase. Today’s novel approaches are being more centered on the understanding of molecular basis of disease processes. At this requirement, the recent materialization of molecular imaging has set …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 2, 2011 · pp. 1–19 Read article
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‘Nano- A New Gambit Joins the Ongoing Battle against Cardiovascular Diseases’ II. Opportunities in Cardiovascular Surgery
Abstract: Normal 0 false false false EN-US X-NONE X-NONE With continuing developments and refinements, cardiovascular surgery has advanced to a vast extent. Minimally invasive surgery has come into vogue in many of the sectors of cardiovascular surgery. But this does not leave surgeons free from the day-to-day challenges which they still continue to face in the field, the most common being the unconventional physiological issues with cardiopulmonary bypass used in majority …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 2, 2011 · pp. 20–35 Read article
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A Computational Study on Convection Heat Transfer in a Differentially Heated Cavity Using Nanofluids
Abstract: Heat transfer is an integral part of thermodynamics. It is used to study the heat and mass transfer in and out of the system during a process; the medium may vary from solids, liquids and gases. The three major divisions of heat transfer are conduction, convection and radiation. In this paper we have discussed the heat transfer through nanofluids particle and water. Water is a very common fluid used in …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 1, 2015 · pp. 14–18 Read article
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Green Revolution in Cement Industry through Nanotechnology
Abstract: In the current decade, construction and infrastructure are most promising sectors for investment because of it's every green growth and cement production is the main pillar of these trades. From 2010 to 2015, China and India are the largest cement producing countries with average production capacity of 2100 and 250 million metric tons per year, respectively. But with these, production of cement creates, the several environment issues, especially related to …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 1, 2015 · pp. 19–22 Read article
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Role of Semiconducting Nanomaterials in Polymer Solar Cell
Abstract: This paper discusses the schematic aspect of semiconducting nanoparticle as applicable in harvest of solar energy via polymer solar cell and the significance of its various nano-layers. As recently observed semi-conducting properties in some inorganic materials have become topic of rigorous research for application in photovoltaic cells. Polymer solar cells are promising alternative to conventional solar cells which are made of crystalline silicon, to overcome their drawbacks such as high …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 1, 2015 · pp. 23–26 Read article
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Nanopiezoelectric Sensor (Disk) Used for Determining the Direction of Blood Flow for Medical Purpose During Surgery
Abstract: During the critical condition like operation of a human body it is sometimes critical to determine the direction of blood flow. Hence, to overcome this problem the authors have designed a setup consisting of two to four or as per the required working condition micropiezoelectric sensor which is used to measure the direction of blood flow. In this, the theory of piezoelectricity is being used.Keywords: Piezoelectricity, acrylic, blood flowCite this …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 1, 2015 · pp. 27–31 Read article
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Microbial Synthesis of ZnO Nanoparticles by Yeast: Sacchromyces cerevisiae
Abstract: This study outlines, low-cost, green and reproducible eukaryotic microbe yeast (Sacchromyces cerevisiae)-mediated biosynthesis of ZnO nanoparticles. Synthesis was performed by four different steps namely, isolation, treatment, transformation and extraction. Different characterization techniques were used to test the nature of nanoparticle—crystallite size and shape by X-ray diffraction, morphology by scanning electron microscope (SEM) and particle size by particle analyzer. ZnO nanoparticles were characterized in order to study different properties of the …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 2, 2015 · pp. 1–5 Read article
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Patterning of Carbon Nanotubes on Silicon Wafer Using Self-Assembly Techniques
Abstract: Nanotechnology is an emerging technology that enables scientists to develop new materials and products at the molecular level. A carbon nanotube (CNT) is a rolled sheet of carbon atoms, coaxially arranged in cylindrical shape. Single-walled CNTs are ideal quantum systems for exploring basic science in one dimension. To find use in electronics, single-walled CNTs need to be efficiently separated by electronic type and aligned to ensure optimal and reproducible electronic …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 2, 2015 · pp. 6–15 Read article
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Sol–Gel Synthesis of SrAl4O7 and Defect-Related Luminescence Properties
Abstract: Single phase of monoclinic SrAl4O7 is synthesized by sol–gel process at a markedly lower temperature as compared to conventional solid-state reaction. The sol–gel derived samples were characterized by thermal gravimetric analysis (TGA), X-ray powder diffraction (XRD) analysis, scanning electron microscope (SEM) and spectrofluorometer. The XRD analysis shows that the strontium aluminate has the monoclinic (α-SrA2) structure. It was demonstrated that the PL emission was obtained at 395 nm, 510 nm …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 2, 2015 · pp. 16–19 Read article
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A Technological Review on Quantum Ballistic Transport Model Based Silicon Nanowire Field Effect Transistors for Circuit Simulation and Design
Abstract: Nanowire MOSFETs are recognized as one of the most promising candidates to extend Moore’s law into nanoelectronics era. This paper reviews the process, application, device physics and compact modeling of Gate All around (GAA) nanowire MOSFETs. The most widely used methods of nanowire synthesis have been discussed. The paper presents the various device optimization techniques and scaling potential of nanowire transistors. A process sensitivity study of silicon nanowire transistors at …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 2, 2015 · pp. 20–31 Read article
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Techniques for Characterization of Anticancer Drug Loaded Polymeric Nanoparticles: A Review
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Polymeric nanoparticles have been used for targeted drug delivery against different diseases during last decades. Particularly in cancer, targeted polymeric nanoparticles can be used to deliver anticancer drugs to cancer cells with reduced cytotoxicity and greater efficacy. Various natural polymers like chitosan, albumin, gelatin and synthetic such as Polylactides (PLA), Poly (Lactide co-Glycolides) (PLGA) have been researched as carrier of anticancer drugs. …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 2, 2015 · pp. 32–43 Read article
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A Comparative Study of Structure, Morphology and Optical Properties of CaAl2O4 Phosphors by Sol–Gel Method
Abstract: In this paper, monoclinic CaAl2O4 phosphor with different weight percentage of aluminium was synthesized by low temperature sol–gel method. The prepared samples were characterized by X-ray diffraction (XRD) analysis, Fourier transform infra red (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and photoluminescence emission spectra (PL). The XRD analysis showed that CaAl2O4 have monoclinic structure. The average size of the particles lies between 88 and 109 nm. It was …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 1–10 Read article
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New Generation Nanocrystalline Silicon Carbide for Implants and Prostheses
Abstract: Nanocrystalline silicon carbide (SiC) is an aspirant material for artificial heart valves primarily due to its low weight, high strength, acute hardness, wear resistance, inertness (SiC does not react with biological fluids), and deterioration resistance. Oxide ceramic materials such as alumina (Al2O3) and zirconia (ZrO2) are often used for medical applications like implants and prostheses because of their terrific biocompatibility and high wear resistance. Unfortunately, oxide ceramics cannot be used …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 11–18 Read article
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Review on Theoretical Background, Fabrication Techniques, Methodologies and Applications of Microfluidic Devices and Nanofluidic Devices
Abstract: In recent past, microfluidics is an outstanding and inspiring research field due to the potential applications of microfluidic devices. Microfluidic laboratory-on-a-chip systems are successfully used in mechanical engineering and biomedical engineering due to low price and easy fabrication methods. The major fabrication methods of the microfluidic devices are imprinting, hot embossing, injection molding, soft lithography, laser photo ablation, X-ray lithography and sealing. Active capillary flow and passive capillary flow are …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 19–34 Read article
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Application of Atomic Force Microscopy for the Study of Lithium-Ion Batteries
Abstract: Development of advanced Lithium Ion Batteries (LIBs) represents a fast growing field of science and technology. However, many fundamental problems remained unresolved due to lack of understanding of surface/interface phenomenon of LIB on nanometer scale. Here, we review recent applications of atomic force microscopy to study three key aspects of lithium ion batteries namely solid electrolyte interface, ion transportation and dendrite growth. In situ AFM is an ideal tool for …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 35–47 Read article
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Compositional and Morphological Properties of Nickel and Manganese Doped ZnO Nano Thin Films Grown by Silar Method
Abstract: The composition and morphology of pristine, Ni, Mn and Ni and Mn doped ZnO are discussed in this paper. These ZnO thin film nanostructures were prepared by SILAR method. The deposition conditions have been optimized based on their structure and on the formation of smoothness, adherence and stoichiometry. The results of studies by EDS attached with, scanning electron microscopy (SEM), reveal the varieties of microstructural and morphological modifications feasible with …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 48–59 Read article
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Effect of CNTs on Mechanical Properties of Mg-CNT Nano Composites Synthesized Through Stir Casting
Abstract: Multi-wall carbon nanotubes (MWCNTs) reinforced magnesium (Mg) nano composites were synthesized using vacuum stir casting technique. Three different weight fractions of MWCNTs (0.33, 0.66, 0.99 wt%) are added with Mg melt and stirred at 450 rpm for 10 min to obtain homogeneous mixture and deposited in a metallic mould. The deposited composite is then extruded at 450oC with an extrusion ratio of 11.11. Samples are prepared from the extruded composite …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 60–66 Read article
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Structural and Magnetic Property Studies of Nanocrystalline Co0.8Zn0.2Fe2O4
Abstract: The synthesis of Co0.8Zn0.2Fe2O4 nanoparticles has been achieved by a simple thermal decomposition method from the inorganic precursor, Co0.8Zn0.2Fe2(cin)3(N2H4)4, which was obtained by a novel precipitation method from the corresponding metal salts, cinnamic acid and hydrazine hydrate. The precursor was characterised by hydrazine and metal analyses, infrared spectral analysis and thermo gravimetric analysis. The thermal decomposition of Co0.8Zn0.2Fe2(cin)3(N2H4)4 yielded Co0.8Zn0.2Fe2O4 nanoparticles, which were characterised for their size and structure using …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 67–73 Read article
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A Simple Sol–Gel Route for the Synthesis and Characterization of Tm-Doped CaAl2O4 Nanophosphor
Abstract: Calcium Aluminate nanophosphor doped with Thulium (CaAl2O4: Tm) was synthesized by simple sol–gel route. The obtained nanophosphor was characterized by X-ray diffraction technique (XRD). The surface morphology was determined by scanning electron microscopy (SEM). Also photoluminescence spectra (PL), and thermogravimetric analysis/differential scanning calorimetry (TGA/DSC) characterization were done. The XRD revealed the formation of monoclinic structure and the particle size was determined by Scherrer formula. It showed that the particles were …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 6, Issue 1, 2016 · pp. 6–10 Read article
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Efficient Green Synthesis of TiO2 Nanoparticles Using Murraya koenigii Leaf Extract
Abstract: Green synthesis of nanoparticles by plant extract is at present under exploitation due to eco-friendly, non-toxic and inexpensive process. Titanium dioxide (TiO2) nanoparticles were synthesized by ultrasound assisted sol-gel precipitation method using titanium tetra-isopropoxide as a precursor and Murraya koenigii leaf extract as a reducing and stabilizing agent. The leaf extract was prepared under various solvent media such as ethanol and distilled water under controlled ultrasonication. Due to effective ultrasound, …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 6, Issue 1, 2016 · pp. 29–38 Read article