Chromosome observation by scanning electron microscopy using ionic liquid

2012 ◽  
Vol 75 (8) ◽  
pp. 1113-1118 ◽  
Author(s):  
Astari Dwiranti ◽  
Linyen Lin ◽  
Eiko Mochizuki ◽  
Susumu Kuwabata ◽  
Akio Takaoka ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ionic Liquid ◽  
Scanning Electron

Synthesis of Nickel Hydroxide with Different Morphologies Using an Ionic Liquid

2010 ◽  
Vol 663-665 ◽  
pp. 1163-1166
Author(s):  
Cun Ying Xu ◽  
Yi Xin Hua
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ionic Liquid ◽  
Volume Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
Reaction Media ◽  
Solvothermal Conditions ◽  
Facile Route ◽  
Scanning Electron

A new and facile route has been developed to synthesize β-Ni(OH)2 nanostructures using ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4) as reaction media under solvothermal conditions. The β-Ni(OH)2 with different morphologies, such as nanoflakes, nanoplatelet and nanorods, can be obtained by controlling the volume ratio of the ionic liquid to water and reaction temperature. The as-prepared products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).

Effect of Ionic Liquid Pretreatment on the Structure and Enzymatic Saccharification of Cassava Stillage Residues

2014 ◽  
Vol 884-885 ◽  
pp. 59-63 ◽  
Author(s):  
Li Hong Cui ◽  
Meng Wang ◽  
Ji Hua Li ◽  
Qing Huang Wang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Ionic Liquid ◽  
Fourier Transform ◽  
Enzymatic Saccharification ◽  
Laser Diffraction ◽  
Solid Wastes ◽  
Imidazolium Chloride ◽  
Scanning Electron

Cassava stillage residue (CSR), the solid wastes generated from cassava-based bio-ethanol production, can be used to produce ethanol because of its high contents of cellulose. This study has focused on the pretreatment of CSR using the ionic liquid (IL) of 1-butyl-3-methyl imidazolium chloride ([Bmim]Cl). The changes in surface morphology, particle size and functional groups of pretreated CSR were examined by scanning electron microscopy (SEM), laser diffraction instrument and Fourier transform infrared (FTIR) spectroscopy. The results showed that [Bmim]Cl pretreatment could significantly damage the structure of cassava cellulose and increase the enzymatic saccharification rate.

Synthesis of Polyaniline Nanofibrous Networks with the Aid of an Amphiphilic Ionic Liquid

2006 ◽  
Vol 6 (1) ◽  
pp. 227-230 ◽  
Author(s):  
Zhenjiang Miao ◽  
Yong Wang ◽  
Zhimin Liu ◽  
Jun Huang ◽  
Buxing Han ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Ionic Liquid ◽  
Oxidative Polymerization ◽  
Ammonium Persulfate ◽  
Molar Ratio ◽  
Transmission Electron ◽  
Scanning Electron

In this work, polyaniline (PANI) nanofibrous networks were prepared using ionic liquid (IL), 1-hexadecyl-3-methylimidazolium chloride (C16MIMCl), as a template through oxidative polymerization of aniline with ammonium persulfate. The resulting PANI was characterized by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis, and FTIR. It was indicated that the as-prepared PANI was in the emeraldine form and its morphology strongly depended on the molar ratio of aniline/C16MIMCl. A possible mechanism for the formation of PANI nanofibrous networks was that the ordered micro-domains of the IL acted as template to direct the growth of the nanostructures.

scholarly journals Preparation of a Novel Nanocomposite of Polyaniline Core Decorated with Anatase-TiO2Nanoparticles in Ionic Liquid/Water Microemulsion

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Yanni Guo ◽  
Deliang He ◽  
Sanbao Xia ◽  
Xin Xie ◽  
Xiang Gao ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ionic Liquid ◽  
Fourier Transform ◽  
Liquid Water ◽  
Particle Sizes ◽  
Visible Spectroscopy ◽  
Novel Structure ◽  
Transmission Electron ◽  
Scanning Electron

Polyaniline core decorated with TiO2(PANI-TiO2) nanocomposite particles was successfully synthesized in ionic liquid/water (IL/water) microemulsion in the presence of anatase TiO2nanoparticles. The TiO2nanoparticles had been dispersed beforehand in OP-10 andn-butanol to weaken the strong particles agglomeration of TiO2. The PANI-TiO2nanocomposites were characterized by fourier transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV-Vis), scanning electron microscopy (SEM), and transmission electron microscope (TEM), and their electrochemical behavior was estimated by the electrochemical workstation. SEM micrographs showed that the nanocomposites exhibited spherical morphology with particle sizes about 70 nm. The TEM result showed that the PANI-TiO2nanocomposites had a novel structure and that nanocrystalline TiO2deposited onto the surface of PANI, which was different from the reported structure of TiO2-PANI nanocomposites. Both FTIR and UV-Vis spectra indicate that polyaniline and nano-TiO2particles are not simply blended or mixed up. A possible reaction mechanism for this nanocomposite preparation is suggested and analyzed.

Tribological activity of ionic liquid stabilized calcium-doped ceria nanoparticles

2020 ◽  
pp. 135065012093500
Author(s):  
Bharat Kumar ◽  
Dinesh K Verma ◽  
Kavita ◽  
Rashmi B Rastogi
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Ionic Liquid ◽  
Wear Scar ◽  
Energy Dispersive ◽  
Doped Ceria ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

10% Calcium-doped ceria (CCO) nanoparticles have been synthesized by sol–gel method. Their surface has been modified by surfactants, sodium dodecyl sulfate and 1-decyl-3-methyl imidazolium bis(trifluoromethyl sulfonyl) imide to yield SCCO and IL-CCO respectively. Powder X-ray diffraction patterns of nanoparticles and surface modified nanoparticles are indicative of cubic phase of ceria. Fourier transform infrared spectra confirm the surface modification of nanoparticles, particularly with ionic liquid. Morphology of the as-prepared nanoparticles investigated by field emission scanning electron microscopy, transmission electron microscopy/high-resolution transmission electron microscopy reveals that there is decrease in size of nanoparticles from CCO followed by SCCO and then IL-CCO. Wrapping of nanoparticles by ionic liquid is apparent in the scanning electron microscopy (SEM) and transmission electron microscopic (TEM) images. The tribological activity of the well-characterized nanoparticles has been evaluated at the optimized concentration, 0.2% w/v in paraffin oil under ASTM D4172 and ASTM D5183 test conditions using a four-ball tester. Based on tribological parameters, mean wear scar diameter, average friction coefficient, load-carrying capacity, and loss of frictional power, their relative performance followed the order – IL-CCO > SCCO > CCO. Worn surface analysis by scanning electron microscopy/energy-dispersive X-ray spectroscopy, atomic force microscopy corroborated the tribological performance. The order of the activity could be correlated with the size of the nanoparticles. Moreover, lubricating properties of ionic liquid have been instrumental for the exalted activity of IL-CCO. The presence of heteroatoms of ionic liquid, nitrogen, oxygen, fluorine, sulfur along with calcium and cerium of nanoparticles in energy-dispersive X-ray (EDX) spectroscopy analysis of the wear scar surface lubricated with IL-CCO confirms the vital role of ionic liquid towards the tribological activity.

Ionic Liquid Treatment for Efficient Sample Preparation of Hydrated Bone for Scanning Electron Microscopy

Micron ◽  
2021 ◽  
pp. 103192
Author(s):  
Liza-Anastasia DiCecco ◽  
Andrew D’Elia ◽  
Cheryl Quenneville ◽  
Leyla Soleymani ◽  
Kathryn Grandfield
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ionic Liquid ◽  
Sample Preparation ◽  
Ionic Liquid Treatment ◽  
Scanning Electron

Direct Electrochemical Reduction of Solid TiO2 in [BMIM]BF4-CaCl2 Ionic Liquid

2014 ◽  
Vol 492 ◽  
pp. 248-252
Author(s):  
Jie Chen Mu ◽  
Xu Dong Zhang ◽  
Li Peng Zhang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ionic Liquid ◽  
Electrochemical Reduction ◽  
X Ray ◽  
Solid Titanium ◽  
Electrolysis Potential ◽  
Surface Morphologies ◽  
Graphite Rod ◽  
Scanning Electron

The direct electrochemical reduction of solid titanium dioxide (TiO2) is conducted in [BMIM]BF4-CaCl2 ionic liquid (IL) at 100 °C using sintered TiO2 as cathode and graphite rod as anode at an electrolysis potential of 3.2 V. Cyclic voltammetry is used to investigate the mechanism and feasibility of the direct electrochemical reduction of solid TiO2 in [BMIM]BF4-CaCl2 IL at 100 °C. The surface morphologies of the cathode are examined by scanning electron microscopy（SEM）. The crystal phase structure of the cathode is examined using a D8 Advance X-ray diffractometer(XRD). The results indicate that the direct electrochemical reduction of solid TiO2 in [BMIM]BF4-CaCl2 IL is feasible. A significant increase in conductivity is obtained by doping graphite into the cathode, thereby enhancing deoxidation. TiO2 reduction is conducted step by step, from outside to inside, and from high to low valence variation.

Simple Observation of the Interaction between Nanoparticles and Cells by Scanning Electron Microscopy Employing Ionic Liquid

2013 ◽  
Vol 86 (1) ◽  
pp. 153-158 ◽  
Author(s):  
Fumiaki Shima ◽  
Koshi Kawakami ◽  
Takami Akagi ◽  
Eiko Mochizuki ◽  
Tetsuya Tsuda ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ionic Liquid ◽  
Simple Observation ◽  
Scanning Electron

scholarly journals Synthesis of silver nanostructures in ionic liquid media and their application to photodegradation of methyl orange

2019 ◽  
Vol 9 ◽  
pp. 184798041983650 ◽  
Author(s):  
Hyesu Park ◽  
Shamim Ahmed Hira ◽  
Nallal Muthuchamy ◽  
Sungkyun Park ◽  
Kang Hyun Park
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Ionic Liquid ◽  
Methyl Orange ◽  
Reducing Agent ◽  
Silver Nanostructures ◽  
Liquid Media ◽  
X Ray ◽  
Silver Nps ◽  
Scanning Electron

Silver nanostructures (silver nanopaerticles e.g AgNPs and silver nanoplates e.g AgNPls) of various sizes and shapes were prepared using different reducing agents in ionic liquid media. The ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, which acts both as a cosolvent and a surfactant, was used to synthesize smaller and more ordered silver nanostructures. Spherical nanoparticles (silver NPs) were prepared using sodium borohydride as a reducing agent. On the other hand, plate-shaped silver nanostructures (silver NPls) were prepared using hydrazine hydrate as a reducing agent. The as-synthesized silver nanostructures were characterized by scanning electron microscopy, powder X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet–visible spectroscopy, and Brunauer–Emmett–Teller analysis. The resulting materials were applied for the photodegradation of methyl orange under visible light irradiation. Because of their large surface area, the silver NPs showed better photocatalytic activity compared with that of Ag NPls.

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