Papers:
A Novel Method for the Production of a Vast Array of Metal, Metal Oxide, and Mixed-Metal Oxide Nanoparticles
In this paper we discuss the materials that can now be produced using a novel method for producing large quantities of high-purity metal, metal oxide, and mixed-metal oxide particles. These nanoparticles are uniform in size [...]
Structure-Property Correlations in ZnO Tetrapods and Spheres prepared by Chemical Vapour Synthesis
Bacsa R., Bacsa W., Verelst M., Dexpert J., Bacsa R., Bacsa W., Serp P., CEMES CNRS Univ Toulouse, FR
ZnO is a direct band gap semiconductor that finds applications in varistors and arrestors. Efficient luminescence in the UV of high purity nanocrystalline ZnO nanoparticles (20-50nm) is used in medicine and in the cosmetic industry [...]
Two-nozzle flame synthesis of Pt/Ba/Al2O3 for NOx storage
A novel two-nozzle flame spray pyrolysis (FSP) process is presented for one-step preparation of Pt/Ba/Al2O3 particles for NOx storage-reduction (NSR) catalysts. These storage catalysts are of particular interest for mobile engines operating under lean conditions [...]
Synthesis of Nanopowders and Their Production at the Industrial Scale Using the Inductively-Coupled Plasma Technology
The increasing demand for nanopowders (particles size
Synthesis of Porous Nanostructured Silica Particles by an Aerosol Templating Method
Jang H-D, Chang H., Park J.H., Kim T-O, Okuyama K., Korea Instittute of geoscience and Mineral Resources, KR
Silica nano-materials with meso- and macroporosity are of great interest due to their variety of potential applications. For the application as a catalytic supporter, nanostructured spherical silica particles having both mesopores and macropores were prepared [...]
Synthesis and Testing of Metal and Nitrogen Doped Nano-TiO2
we have adopted a novel approach to the use of continuous hydrothermal flow system (CHFS) for the synthesis of various crystalline doped anatase TiO2 nano-ceramics with high surface area (ca. 280 m2g-1) system. Their photocatalytic [...]
Controlled Encapsulation of a Hydrophilic Drug Simulant in Nano-Liposomes using Continuous Flow Microfluidics
Jahn A., Reiner J.E., Vreeland W.N., DeVoe D.L., Locascio L.E., Gaitan M., National Institute of Standards and Technology, US
A new method to tailor the size and size distribution of nanometer scale liposomes in a continuous-flow microfluidic design is presented. Encapsulation of a model drug into the liposomes is analyzed with Fluorescence Fluctuation Spectroscopy [...]
Production of Polymer Nanosuspensions Using MicrofluidizerTM Processor Based Processes
Two techniques are reported here that can create nano-suspensions of many different polymers types with varying particle sizes by controlling the formulation and process variables. Microfluidics Reaction Technology (MRT) was used with the solvent anti/solvent [...]
Formation of Pyrophoric _-Fe Nanoparticles from Fe(II)-Oxalate
Shende R., Vats A., Doorenbos Z., Kapoor D., Puszynski J., South Dakota School of Mines & Technology, US
The formation of pyrophoric Fe-nanoparticles from Fe(II)-oxalate decomposition under H2 atmosphere was the main objective of this research. Iron oxalate was synthesized by controlled nucleation process involving addition of oxalic acid in the FeCl2.2H2O solution [...]
Rhodamine B Isothiocyanate-Modified Ag Nanoaggregates on Dielectric Beads: A Novel Surface-Enhanced-Raman-Scattering and Fluorescent Imaging Material
Ag-deposited silica and polystyrene beads are efficient surface-enhanced-Raman-scattering (SERS) substrates that can be used as core materials of SERS-based biosensors. In this work, we report that once rhodamine B isothiocyanate (RhBITC) is adsorbed onto them, [...]
Optical properties of 2D nanoparticle arrays
The self-assembly of nanometric size particles in large area compact monolayers has recently attracted considerable interest in terms of the fabrication of new optical nanostructured devices of macroscopic dimensions. These nanometric arranged surfaces present a [...]
Advanced fluorescent nanotracers: a broad field of application
Optical and magnetic nanoparticles are both attractive fields of investigation which are gaining in importance due to their potential markets e.g. polymer nano-composite, colloidal dispersion, environmental monitoring or biomedical diagnostics, etc. Among all the spectroscopic [...]
Development of Nanoparticle-Based Gold Contrast Agent for Photoacoustic Tomography
Photoacoustic tomography (PAT) utilizes non-ionizing energy to obtain structural/functional information with high spatial resolution and sensitivity. Heterogeneous absorption of optical energy in biological tissues results in differentially expressed acoustic signals yielding spatial/temporal information. A critically [...]
Gold Nanoparticles as Colourants in High Fashion Fabrics and Textiles
Gold nanoparticles which exhibit different colours due to surface plasmon resonance scattering effects are used here as stable colourants on wool and synthetic fibres. This provides the exciting opportunity to link nanoscience with high value [...]
Silver Nanoparticles Synthesis from Highly Concentrated Solutions
Silver nanoparticles are nowadays of great interest; either for their antibacterial properties or as a conductive filler in electronic applications. In both cases, silver nanoparticles have to be optimally dispersed in a polymeric matrix while [...]
Emulsions as Templates for Nanostructured Materials
The preparation of nanostructured materials by emulsion templating is of particular interest among the soft nanotechnology processes. The use of emulsions allows good control of size and morphology, mild reaction conditions and technological feasibility. This [...]
Synthesis, Extraction and Surface Modification Of (Zn,Mn)Se Nanocrystals Using Microemulsions As Templates
This research focuses on the novel room temperature synthesis of (Zn,Mn)Se quantum dots that exhibit luminescence peaks at longer wavelengths than the ZnSe bulk emission, due to the Mn ions incorporated in the ZnSe lattice. [...]
Synthesis of nanocrystalline CoFe2O4 using citrate-urea assisted combustion process for lithium battery anode
Prakash I., Nallamuthu N., Muralidharan P., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN
Nanocrystalline CoFe2O4 having wide ranges of applications in many fields like magnetic data storage, catalysis, ferrofluids, sensors, actuators as well as biomedical applications such as targeted drug delivery, hyperthermia, etc., Recently, CoFe2O4 nanostructures has used [...]
In-situ incorporation of Pd-MPTES complex in nanostructured silica
Recently, we described a simple method to incorporate metal nanopaticles in porous materials by functionalization of nanoparticles with trialkoxysilanes. This strategy is based on three steps: first, the metal nanoparticles were produced by controlled reduction [...]
Production of Nanoparticles Sizes of Active Pharmaceutical Ingredients (API) by Wet Comminution with DYNO-MILL
The production of nanoparticles in the size range of 13nm has been achieved using the DYNO®-MILL bead mill. Active Pharmaceutical Ingredients (API) are able to be absorbed by the body’s cells when of a size [...]
Silver nanoparticles synthesized on titanium dioxide fine particles
Niño-Martínez N., Martínez-Castañón G.A., González-Hernadez J., Ruiz F., Universidad Autonoma de San Luis Potosi, MX
Silver nanoparticles with a narrow size distribution (20 nm mean size) were synthesized over the surface of two different commercial TiO2 particles using a simple aqueous reduction method. The reducing agent used was NaBH4; different [...]
Free- standing SnO2 nanoparticles synthesized by hydrothermal route
Fernández-Osorio A., Vázquez-Olmos A., Sato-Berru R., Casas-Gutiérrez D., Universidad Nacional Autonoma de Mexico, MX
Tin oxide with rutile-type crystalline structure is a n-type wide band gap (3.5 eV) semiconductor that presents a proper combination of chemical, electronic and optical properties that make it advantageous in several applications. Due to [...]
Glycerol Assisted Polymeric Precursor Route for the Synthesis of Nanocrystalline LiCoO2 Powders
LiCoO2 with Layer structure has been used as a cathode material in lithium batteries. Recently, it is found that the nanostructured LiCoO2 powders exhibit an enhanced electrochemical performance compared to their bulk. Physiochemical properties of [...]
Structure of Ni nanoparticles/TiO2 films prepared by sol-gel dip-coating
García-Murillo A., Ramírez-Meneses E., Ramírez-Salgado J., Sandoval-Robles B.G., Montiel-Palma V., Dorantes-Rosales H., Del Angel-Vicente P., Cicata - IPN Unidad Altamira, MX
Titania thin films were synthesized by sol-gel dip-coating method with metallic Ni nanoparticles from an organometallic precursor. Titania matrix and Ni nanoparticles were prepared separately. Titania precursor solution was prepared mixing titanium isopropoxide in isopropanol [...]
Biphenyl-functionalized Ethane-silica Hybrid Materials with Ordered Hexagonal Mesoporous Structure
Virtudazo R., Magdaluyo Jr E., dela Cruz L., Castriciones E., Mendoza H., University of the Philippines, PH
A biphenyl-containing hybrid organic-inorganic mesoporous materials have been synthesized and characteized. The synthesis was done via surfactant-templated polymerization of 4,4’-bis(triethoxysilyl)biphenyl and 1,2-bis(triethoxysilyl)ethane under basic condition. The composition, structure and morphology of the mesoporous materials were [...]
Computational and experimental studies of non-metal-terminated surfaces of anatase and rutile TiO2
Yang H.G., Sun C.H., Qiao S.Z., Zhou J., Smith S.C., Cheng H.M., Lu G.Q., University of Queensland, AU
The structures and free energies ( ) of low index surfaces of anatase and rutile TiO2 terminated by nonmetals (H, B, C, N, O, F, Si, P, S, Cl, Br, and I) have been studied [...]
Scattering properties of dense clusters of nanoparticles
The use of light scattering or laser diffraction techniques to characterize dense clusters such as those generated in shear induced coagulations is highly desirable. However, a major obstacle in the effective utilization of this technique [...]
Synthesis of Janus Nanorods for Assemblies of Thermoresponsive Rod Pairs
Janus particles offer unique functionality; for example micron-scale Janus spheres are used for electronic paper. At the nanoscale, reproducible, scalable fabrication of Janus particles is one of the key enabling technologies for “bottom-up” assembly processes. [...]
Synthesis and Characterization of Novel ZnO-Whey Protein Nanocomposite at Low Temperature
The incorporation of nanocrystalline ZnO into whey protein to form nanocomposite will possess the unique functionalities and potential applications in material science and food sciences. Herein we synthesized nanocrystalline ZnO particles coated with whey protein [...]
Ferrite-Silica-Insulin Nanocomposites (FeSINC) for Glucose Reduction
Dwivedii N., Arunagirinathan M.A., Sharma S., Bellare J., Indian Institute of Technology - Bombay, IN
Silica-insulin nanocomposite (SINC) and ferrite coated SINC (FeSINC) prepared by polyelectrolytic condensation of silica precursor on insulin were studied to control the glucose level. Silica precursor which has a negative charge binds to insulin that [...]
Particles as Protein Markers: Nanoscale Microscopy Towards Picoscale
Shriniwas B.D., Sharma A., Sharma R., Sharma A., Sharma R., Chen C-J., Baile V.V., Raghukumar V., RTM Nagpur University, IN
The present report shows the emerging trend of picotechnology in bioengineering, Heteropneustes fossilis fish protein characterization by PAGE-gel electrophoresis, 10-100 nm nanoadducts by electron microscopy with possibility of nanogel-peptide(polyacylate-polyethylene-iron oxide) adducts as predictors of fish [...]
Investigations on the convective heat transfer in Ag – and Cu – ethylene glycol nanofluids
Dzido G., Chmiel-Kurowska K., Gierczycki A., Jarzebski A.B., Institute of Chemical Engineering, Polish Academy of Science, PL
Common coolants as water, oil or ethylene glycol are characterized by poor thermal properties, i.e. convective heat transfer and heat conductivity coefficient. Addition of solid particles with size less than 100 nm can significantly improve [...]
Process Intensification Strategies for the Synthesis of Superparamagnetic Nanoparticles and Fabrication of Nano-Hybrid
Superparamagnetic magnetite (Fe3O4) nanoparticles are important for a diverse range of applications such as, magnetic resonance imaging, targeted drug delivery and magnetic separation. The most common cost effective and convenient way to synthesize Fe3O4 nanoparticles [...]
Conductance Enhancement of Nanoparticulate Indium Tin Oxide Layers Made by Printing Technique
To improve their conductance we applied several treatments on nanoparticulate indium tin oxide (In2O3:Sn, ITO) layers: post bake, infiltration by an ITO precursor solution with subsequent sol-gel transformation into ITO, treatment with etching agents as [...]
Palladium/Polymer nanocomposite based Chemiresistive SO2 Sensor
Here we present a highly sensitive nanocomposite based Chemiresistive SO2 sensor. The main objective of this research is focused on developing a cost effective, integrable and disposable gas sensor which detects SO2 gas molecules in [...]
Structure-property relationships in Pd/Polycarbonate based chemical sensors
Atre S.V., Valmikanathan O.P., Meka D.B., Prasad S., Oregon Nanoscience & Microtechnologies Institute, US
The effects of nanparticle surface chemistry, size, concentration and distribution on the properties of Pd/polycarbonate nanocomposites was investigated. Interesting trends in electrical conductivity and thermal stability of the nanomposites were identified. These trends were used [...]
Toughening mechanisms of nanoparticle-modified epoxy polymers
Mohammed R.D., Johnsen B.B., Kinloch A.J., Taylor A.C., Sprenger S., The University of Trinidad and Tobago, TT
An epoxy resin, cured with an anhydride, has been modified by the addition of silica nanoparticles. The particles were introduced via a sol-gel technique which gave a very well-dispersed phase of nanosilica particles which were [...]
Self-Assembly of Polymers and NanoParticles in Personal Care Products
Soane Labs develops and applies nanotechnology and advanced polymer chemistry to the personal care industry trough novel colorants and high-affinity polymers. By controlling the spontaneous self-assembly of polymers and nanoparticles at interfaces, the color, look, [...]
Towards Nanoscaled Systems: New Dispersing Technologies
The presentation will give an overview of state-of-the-art technologies and today’s possibilities as well as technical and regulatory limitations. The focus will be on the potential of a new generation of homogenizers, which allowfor the [...]
Molecular approach for the synthesis of supported nanoparticles on active carbon using noble metal clusters
Willocq C., Vidick D., Hermans S., Delcorte A., Bertrand P., Dubois V., Devillers M., Université catholique de Louvain, BE
A molecular approach was envisaged for the preparation of nanoparticles supported on carbon. The support was first treated in order to build suitable anchors for organometallic compounds on the surface. Palladium clusters of various nuclearities [...]
Evaluation of Antibacterial Activities of Zinc Oxide-Titanium Dioxide Nanocomposites Prepared by Sol-Gel Method
Antibacterial activity of ceramic powders has attracted attention as a new technique that can substitute for conventional methods using organic agents. Ceramic powders of zinc oxide (ZnO), calcium oxide (CaO) and magnesium oxide (MgO) were [...]
Nanoscaled Mg(OH)2 Used as Flame Retardant Additive
Headwaters Technology Innovation (HTI) has applied aqueous colloidal chemistry with great success in the development of “bottom-up” nanomaterials and nanotechnologies. One such material is a nano-scaled magnesium hydroxide, NxCat® Mg(OH)2, which is primarily used as [...]
NanoZeolites – porous nanomaterials for cleantech, encapsulation and triggered release applications
Recent advances in hydrothermal synthesis techniques and procedures to modify the surfaces of the particles have led to the development of a new class of material – the NanoZeolites. The availability of porous, nanocrystalline materials [...]
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2008: Materials, Fabrication, Particles, and Characterization – Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: June 1, 2008
Industry sector: Advanced Materials & Manufacturing
Topic: Nanoparticle Synthesis & Applications
ISBN: 978-1-4200-8503-7