Papers:
High-speed imaging in noncontact atomic force microscopy
In this study, we present a new operating method that we developed to be used in noncontact atomic force microscopes. This method is developed to minimize the time spent for noncontact AFM imaging experiments. In [...]
Development of a metrological scanning probe microscope as a primary standard for nanoscale dimensional measurement
Babic B., Freund C., Gray M.B., Herrmann J., Hsu M.T.L., Lawn M., McRae T.G., National Measurement Institute Australia, AU
The capability for accurate dimensional measurement at the nanoscale, traceable to the SI meter, is fundamental for the development and effective support of nanoscience and nanotechnology. At the National Measurement Institute Australia (NMIA), the primary [...]
Acid-basic site detection and mapping on solid surfaces at the nanoscale, by Kelvin force microscopy (KFM)
The present work shows, for the first time, that the electric potential pattern of acid and basic solid surfaces is modified under variable relative humidity, as determined by using Kelvin force microscopy (KFM). This allows [...]
Design of In-situ Electrochemical Cells for XAS Experiments
Katsoudas J.P., Timofeeva E.V., Segre C.U., Illinois Institute of Technology Material Collaborative Access Team, US
The high demand for better performing battery electrodes and fuel cell catalysts has pushed the direction of experimental design for in situ electrochemical (EC) cells towards non invasive experimental techniques such as x-ray absorption spectroscopy [...]
Monitoring nanoparticle growth in a microreactor by combined micro-SAXS and micro-Raman techniques
Reynolds M., Di Cola E., Sztucki M., Gourrier A., Montero C., Burghammer M., European Synchrotron Radiation Facility, FR
Noble metal nanoparticles have been extensively exploited in recent decades for their importance in fundamental science and their applications in biomedical therapeutics, catalysis and as a bottom-up approach to the production of ordered nanostructures. Key [...]
Extending the Lifetime of Zeta Potential Electrodes
Nanoparticle development and manufacturing require appropriate particle characterization techniques to determine if design or quality goals are being met. One important aspect of many nanoparticle systems is the zeta potential, a measure of surface charge. [...]
Measuring Resistive Characteristics of Silicon Nanowire by Applying Electrostatic Tensile Device and Broadband Test Signal
Roinila T., Verho J., Vilkko M., Kallio P., Lekkala J., Zeng H., Yu X., Li T., Wang Y., Tampere University of Technology, FI
Silicon nanowires have attracted significant attention by the electronics industry due to the need for ever-smaller electronics components and devices. It has been shown that nanostructures reveal mechanical and electrical properties that are significantly different [...]
Novel Carbon-Aluminum Materials
Jasiuk I., Nilufar S., Salamanca-Riba L., Isaacs R., Siddiqi S., University of Illinois at Urbana-Champaign, US
We characterized novel metal carbon materials called covetics. More specifically we study warm rolled Al 7075-carbon materials containing up to 5 wt% C. At macroscale we measured mechanical properties: Young’s modulus, ultimate tensile strength (UTS), [...]
Microscopic Characterization of Nanocomposite based on the Mixture of Carbon Nanotube and Rosette Nanotube
Cho J.-Y., Yamazaki T., Duque J.G., Doorn S., Das S., Green M., Fenniri H., National Institute for Nanotechnology, CA
In this paper, it was demonstrated that the self-assembled organic rosette nanotube (RNT) can encapsulate single-walled carbon nanotubes (SWNTs) and form nanocomposites. Importantly, the RNTs were found to hold their supramolecular architectures. To understand how [...]
The distribution of nano size clusters in deformed FeCu alloy by small angle neutron scattering
Park D.G., Song H., Vertesy G., Kobayashi S., Takahashi S., Korea Atomic Energy Research Institute (KAERI), KR
Fe-Cu alloys are commonly used for a simulation of radiation damage of reactor pressure vessel (RPV) because a neutron irradiation enhances the copper rich precipitates (CRPs) with the sizes of several nanometer which is known [...]
Transverse Elastic Modulus of Tobacco Mosaic Virus Superlattice
Tobacco mosaic virus (TMV) and TMV-derived materials have demonstrated their great potential in biomedical applications, where the mechanical property is one of the determining factors for their proper functionalities and structural integrity. Recently, it has [...]
Health Monitoring of Carbon/Carbon Composites Monitored by Ultrasonic TOF Technique
Carbon/carbon (C/C) composites reinforced with carbon nanotube are tested for their application to primary aircraft structures using ultrasonic testing. Ultrasonic testing is the most widely used and most powerful procedure for inspecting composites. Composites are [...]
An emerging method for the separation and characterisation of manufactured nanoparticles in complex environmental samples
Manufactured nanoparticles (MNPs) are increasingly released to the environment. In spite of this growth, information about the fate and toxicity of nanoparticles in the environment is limited, partly due to the lack of techniques capable [...]
Synthesis of hollow silica particles with tunables ize,shell thickness,and morphology
Kim J., Lee J., Chang H., Choi J.W., Jang H-D, Kim J., Korea Institute of Geoscience and Mineral Resources, KR
Here, we provide simple methods to modify the particle size, shell thickness, and the morphology of hollow silica particles (HSPs). To synthesize the HSPs, we adopted polystyrene (PS) particles as a sacrificial template. Size tune [...]
Polarization insensitive and wide-angle plasmonically induced transparency by planar metamaterial
Chen S., Cheng H., Duan X., Yang H., Cheng H., Li J., Liu W., Liu W., Gu C., Tian J., Nankai University, CN
We present the design, characterization and experimental demonstration of a polarization insensitive and wide-angle plasmonically induced transparency (PIT) planar metamaterial (MM) in the near infrared regime. A four-level plasmonic model is proposed to explain and [...]
Photon up-conversion and magnetic properties of rare earths-doped NaYF4 nanoparticles
García-Flores A.F., Lesseux G.G., Iwamoto W., Urbano R.R., Rettori C., Universidade Federal do ABC, BR
In this work we have investigated Yb/Er and Yb/Tm co-doped NaYF4 nanoparticles (NPs) as well as Yb and Er single doped ones by means of luminescence, high resolution transmission electron microscopy (HRTEM), X-ray powder diffraction [...]
Influence of Nanoclay’s Incorporation On Mechanical and Thermogravimetric Properties of ER/MWCNT Composites
Stimoniaris A.Z., Zois H., Kanapitsas A., Delides C.G., Technological Educational Institute Of Lamia, GR
In this work polymer nanocomposite systems based on epoxy resin (ER), reinforced with amine-modified multi-walled carbon nanotubes (MWCNTs) and/or nanoclays were studied. Thermogravimetric/Differential Thermal Analysis (TGA/DTA) and Dynamic Mechanical Analysis (DMA) techniques were carried out. [...]
Magnetic properties of metallic AuPdO nanoparticles confined in ordered mesoporous silica SBA-15 channels
Iwamoto W., Lesseux G.G., Dias B.F., Teixeira-Neto A.A., Teixeira-Neto E., Teixeira-Neto A.A., Teixeira-Neto E., Urbano R.R., Rettori C., Universidade Estadual de Campinas (UNICAMP), BR
Materials consisting of metallic AuPdO nanoparticles (AuPdO-NPs) supported on mesoporous silica SBA-15 channels (AuPdO-NPs/SBA15, Figure 1) have become composite compounds of great interest due to their catalytic applications [1]. In this work we report on [...]
Enhancement of Ferromagnetism in Amine/Organic Acid Capped Au-Nanoparticles by Yttrium-Oxide Inclusion
Lesseux G.G., Iwamoto W., Rosas V.H., Vautier-Giongo C., Rettori C., Rettori D., Urbano R.R., Rettori C., Rettori D., Universidade Estadual de Campinas (UNICAMP), BR
In this work we report on the enhancement of the ferromagnetism of amine/organic acid capped Au nanoparticles (AuNPs) by incorporation of yttrium-oxide (Y2O3). The magnetization measurements displayed a ferromagnetic (FM) loop with a coercive field [...]
Ti-based nanocrystallites formation by high-energy milling
Kwon H., Jung S., Cho S.W., Kil D.S., Kim J., Roh K.M., Lim J.W., Korea Institute of Geoscience and Mineral Resources, KR
There are many researches for the solid-solution to prepare the materials with the properties which pure materials do not have. However, basically, it was difficult to synthesize the solid-solution phase because of high activation energy [...]
The study of anti-reflection coatings doped with Ag nanoparticles utilized in solar cells
Zhan S., Zhang Q., Fan X.H.J., Zhang Q., Ji R., Wang Y., Miao T., Sun Q., Sun X., Hao Y., Sun Q., Sun X., Northwest University, CN
As solar energy is a renewable,clean energy sources,it has been focused rearchers attention for a long time.In this study ,We expect to enhance the transimittance of anti-reflection(AR) films which are used in solar cells.First,The Ag [...]
Preparation and near infrared emission research of YBO3:Ce3+,Yb3+ nanosheets
Y0.97Ce0.01Yb0.02BO3 nanosheets(a) and micro-rose(b) have the same hexagonal structure, and the intensity of (110) and (100) diffraction peaks of the sample a is stronger than b. Annealing the sample b in different temperature, the higher [...]
Synthesis and Surface Activity of Amphiphilic 2-Acylamido-2-Methylpropane Sulfonic Acid – co-N-Isopropyl Acylamide Nanoparticles in Non-Aqueous Media
In this work, we synthesized a series of nonionic polymerizable nonyl phenol ethoxylates (NPEs) as organic solvent-soluble surfactants in which straight, branched and cyclic alkyls and phenyl acted as solvophilic segment and polyoxyethylene, or maleate [...]
Study of sodium-chromium-iron-phosphate glass by XRD, IR, Chemical Durability and SEM
Chromium iron phosphate glass was investigated for use as waste form because of its improved chemical durability. The introduction of chromium in sodium-iron-phosphate glasses is used to compare its effect with iron in inhibition of [...]
Study of Photocatalytic activity and properties of Transition metal ions doped Nanocrystalline TiO2 prepared by Sol-Gel Method
In summary, we have reported the synthesis of 1%, 2% and 4% Fe,Co doped TiO2 powders successfully prepared via sol–gel synthesis and controlled calcinations. XRD for Fe, CO doped TiO2 indicates dopant concentration effects phase [...]
Preparation and characterization of new nanocomposites synthesized of Au and Au–Ag bimetallic nanoparticles encapsoulated in functionalized multiwalled carbon nanotubes
Sarlak N., Sameri Z., Meyer T.J., Pourrahim R., Shaabani K., University of North Carolina at Chapel Hill, US
Highly dispersed Au and Au-Ag nanoparticles supported on carbon nanotubes are generated using an easy synthesis. MWCNT was opened and its derivative containing -COOH and -OH functional groups was obtained. Polycondensation of monohydrate citric acid [...]
Effect of SiO2 on the electrical and magnetical properties of nanocrystalline NiFe2O4
NiFe2O4 is an important magnetic material because of its applications in various fields Ferrites are also used in gas, humidity sensor and anode materials in lithium ion batteries. The problem existing in anode material is [...]
Investigation of the MgO absorbate and the MgO/Fe on GaAs(001) surface by means of XPS and XPD
We report a combined high-resolution photoemission and photoelectron diraction investigation of a magnesium oxide adsorbate on an Fe surface grown on a GaAs(4x2)-reconstructed substrate. MgO is an appliciable insulator in magnetic tunnel junctions (MTJ) based [...]
Nanoscale fast Ge diffusion in laser irradiated SiGe thin films
Teodorescu V.S., Ghica C., Maraloiu A.V., Lepadatu A.M., Stavarache I., Ciurea M.L., Scarisoreanu N.D., Andrei A., Dinescu M., National Institute for Materials Physics, RO
We report the presence of a fast Ge diffusion effect produced during laser crystallization of Si0.45Ge0.55 films deposited by magnetron sputtering on Si(100) substrates. The laser irradiation was performed using the 265 nm wavelength radiation [...]
Effects of ZnO buffer layer and depth profiling analysis of bulk heterojunction organic solar cells
Mbule P.S., Kim B.S., Kim T-H., Kim B.S., Kim T-H., Swart H.C., Ntwaeaborwa O.M., University of the Free State, ZA
Bulk heterojunction organic solar cells (BHJs) with ZnO nanoparticles buffer layer between the active layer and the aluminum (Al) top electrode were fabricated. The BHJs comprised of successive layers of poly(3,4ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), a blend of [...]
C-AFM as a means to identify heterogeneities at the nanoscale in thin anodic TiO2 films
The anodic oxidation of titanium allows the obtaining of an oxide layer with thickness, color, homogeneity and insulating properties that depend on the process parameters. TiO2 thin films have been studied mostly to derive information [...]
Cobalt Nanoparticles: Synthesis and Langmuir-Blodgett Monolayer Formation
We report the synthesis of Co nanoparticles in spherical micelles and formations the 2D arrays structures of Co nanoparticles. The Co nanoparticles were chemically synthesized through a redox method in spherical micelles of the microemulsion [...]
Physical properties of multilayer thin films of Ti-V and their hydrides studied by ion beam analysis methods
Drogowska K., Flege S., Becker H.-W., Tarnawski Z., Zakrzewska K., Balogh A.G., AGH University of Science and Technology, PL
A wide variety of characterization techniques were used to determine the properties of titanium, titanium oxides and vanadium oxide thin film multilayers with different thicknesses, for the as-deposited state as well as under different levels [...]
Contact Properties of Titanium Nitride Sidewall Coating for Nanoelectromechanical Electronics
Shavezipur M., Harrison K.L., Lee W-S., Espinosa B., Provine J., Mitra S., Wong H.S.P., Howe R.T., The Ohio State University, US
The performance of hybrid NEM-CMOS low power electronics and logic gates highly depends on the source-drain contact resistance and adhesion force, which affect the power consumption and the pull-in/pull-out hysteresis, respectively. In the present work, [...]
Modeling and Fabrication of Quantum Dot Channel (QDC) Field-Effect Transistors Incorporating Quantum Dot Gate
Quantum dot gate (QDG) field effect transistors (FET) have shown three-state transfer characteristics. Quantum dot channel (QDC) field-effect transistors (FET) have exhibited multi-state ID-VG characteristics. This paper aims at studying the effect of incorporating cladded [...]
Magnetic Resonance Force Microscopy using a Commercially Available SPM Unit
Magnetic resonance force microscopy (MRFM) is considered another as a novel scanning probe microscope (SPM) combined with conventional SPM and magnetic resonance imaging. Originally, MRFM is proposed as a means to improve detection sensitivity to [...]
Complex conductivity measurement of CNT/Polymer films using a non-contact microwave technique
Badi N., Kanakadandila V., Wosik J., Chouit F., Boukhezar S., Guellati O., Guerioune M., University of Houston, US
Carbon nanotubes (CNTs) reinforced composites have applications in electronics, optoelectronics, photovoltaic, sensors, structural materials, and energy storage systems. Electrical characteristics, such as alternating current (AC) complex conductivity and dielectric permittivity are key functional parameters of [...]
Narrow Fin Width Effect of HKMG Bulk FinFET Devices
Chen C-H, Chen C-Y, Chen L.-W., Chen Y-Y, Li Y., Chen C-H, Chen C-Y, Chen L.-W., Chen Y-Y, Chen C-H, Chen C-Y, Chen L.-W., Chen Y-Y, Hsu S.-C., Huang W.-T., Yang C.-M., Chen C-H, Chen C-Y, Chen L.-W., Chen Y-Y, Chu S.-Y., National Chiao Tung University, TW
In this study, we for the first time explore the dependence of the silicon fin width on electrostatic characteristic of HKMG bulk FinFET devices. On the same layout area, our study indicates that the narrow [...]
Optimizing Instrument Operation and Data Processing for Single Particle Inductively Coupled Plasma Mass Spectrometry Measurement of Gold Nanoparticles
Liu J., Murphy K.E., MacCuspie R.I., Winchester M.R., National Institute of Standards and Technology, US
In recent years, inductively coupled plasma mass spectrometry (ICP-MS) operated in time-resolved analysis (TRA) mode has merged as a promising analytical tool capable of both sizing and counting metal containing nanoparticles in aqueous suspensions. In [...]
Membrane-Particle Interactions in Asymmetric Flow Field Flow Fractionation (A4F) – The Influence of the ζ-Potential
Asymmetric flow field flow fractionation is a powerful and promising technique for the separation of nanoparticles. In combination with UV/Vis detection, multi-angle light scattering and coupled to ICP-MS it is a fast and quantitative analytical [...]
Characterizing the Minimal Information about Nanomaterials and Bringing Data Together to Accelerate Discover
Nanomaterials are being widely incorporated into consumer products and are being used in studies and procedures to improve human health. Although there are benefits of using nanomaterials, there may also be unintended risks. There is [...]
The influence of technique on the measured particle size distribution of complex nanoparticle systems
Jämting Å.K., Roy M., Catchpoole H.J., Lawn M., Babic B., Coleman V.A., Herrmann J., National Measurement Institute Australia, AU
Accurate and reliable characterization of nanoparticles is crucial for both industrial applica-tions and studies of their toxicological and environmental impacts. Particle size distribution (PSD) has been widely recognised as one of the key parameters that [...]
Impedance and Dielectric Spectroscopy of Nanoparticulate Films and Composites
This paper will describe the ways in which one can use impedance and dielectric spectroscopy for characterizing nanoparticulate thin films and composites. This technique is especially useful for these types of materials because it is [...]
The distribution of engineered nanoparticles (ENPs) in municipal wastewater treatment systems
The objective of this research was to develop a method reliable for the detection and quantification of engineered nanoparticles in municipal wastewater treatment systems. Wastewater and sludge samples were sampled from four regional municipal wastewater [...]
Soybean meal nano scales resistant starch- model carbohydrates for encapsulation of bioactive compounds
The research focus is on encapsulating materials like drugs and nutrients specifically for colon using resistant starch. As a representation a model system is developed by encapsulating glass bead and experimenting the suitability to be [...]
Well trap structures and bulk-nano environment luminescence centers in CaZnGe2O6:Tb3+ long afterglow phosphor
A long afterglow phosphor CaZnGe2O6:Tb3+ has been prepared by using organic coated luminescence ZnO nanopowder through a high temperature solid-state reaction route. This new CaZnGe2O6:Tb3+ long afterglow phosphor sample emits the Tb3+ green fluorescence 543 [...]
Characterizing Thermal Diffusivity of Synthetic Spider Silk using Improved Transient Electrothermal Technique
This paper presents results for the thermal diffusivity of a synthetically produced spider silk. This synthetic spider silk is being developed for lightweight thermal management applications. Additionally, an improved method for measurement of the thermal [...]
Parametric Study on the Effect of Radiation Heat Loss and Non-Constant Heating in the Electrothermal Technique for Thermal Property Measurement of Micro/Nanoscale Fibers
This paper presents a parametric study of the effects of radiation heat loss and non-constant heating on the measurement accuracy of thermal properties of micro/nanoscale fibers using the Transient Electrothermal technique. In the original derivation, [...]
Super-hydrophobic paper influence on bacterial attachment suggests potential application as packaging material
Jain S., Li L., Breedveld V., Hess D.W., Barnett C., Davis M., Singh S., Pillai S., Alabama State University, US
The surface topography and chemistry of cellulose-based paper, was controlled by a two-step plasma (glow discharge) treatment. Selective plasma etching of the amorphous regions of cellulose followed by plasma deposition of a thin (100 nm) [...]
Design and characteristics of an optical nanosensor based on immobilization of MWCNTs-g-PCA-Au on a triacetylcellulose membrane for determination trace amounts of thiourea
Sarlak N., Sameri Z., Meyer T.J., Shaabani K., Pourrahim R., University of North Carolina at Chapel Hill, US
The characterization of an optical absorption based one-shot sensor is described for the determination of thiourea based on the immobilization of new nanocomposite of MWCNT-graft-poly(citric acid)/Au on a triacetylcellulose membrane. So Multiwalled carbon nanotubes were [...]
Characterization of RF-sputtered ultra-thin WO3 films grown on TiO2 surface
We report on TiO2 and WO3/TiO2 bilayers thin films grown on amorphous and crystalline substrates, at room temperature by plasma-assisted sputtering. TiO2/WO3 ceramic targets were used in an RF magnetron discharge running in an Ar [...]
Eddy Current and Microwave Characterization of Fe- Based Alloy Synthesized by Mechanical Alloying
In the present study mechanical alloying has been used to obtain bulk nanocrystalline FeAl intermetallic compound. Nanocrystalline powder of Fe(Al) solid solution was the product of ball milling. The structural effects of mechanical alloying of [...]
SECM Investigation on the Effect of ZnO Nanoparticles on Nasopharyngeal Cancer Cell Respiration
In recent years, there is an overwhelming interest in using nanoparticle for cancer therapy. Many reports show selective cytotoxicity of nanoparticles over cancer cells. However, the mechanism of such behavior is yet to be discovered. [...]
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites (Volume 1)
Published: May 12, 2013
Industry sector: Advanced Materials & Manufacturing
Topic: Materials Characterization & Imaging
ISBN: 978-1-4822-0581-7