Papers:
Single-Molecule Study of Dendrimer-Hydrocarbon Interaction
Dendrimers are star-branched polymers which have broad applications from energy harvesting, catalysis, drug delivery, to gas-hydrate prevention in the petroleum industry. However the underlining mechanisms of these applications are not well understood. Here we present [...]
Micro Patterning Sensor Layers by Flame Deposition and Annealing
Tricoli A., Graf M., Mayer F., Kühne S., Hierlemann A., Pratsinis S.E., Swiss Federal Institute of Technology (ETH Zürich ), CH
A wafer-level, CMOS-compatible, dry process for in-situ synthesis, deposition and annealing of nanostructured, porous metal-oxide layers for gas sensors is presented. First, lace-like, nanostructured layers of pure or Pt-doped SnO2 featuring high porosity (98%) are [...]
Patterning Wrinkle Architectures in Nanocomposite Glasses with Self-Inscribing Guided Waves
We have been exploring ways in which light induced self inscribed (LISI) waveguides can impose constraints on wrinkle patterns when nanocomposite hybrid sol-gel glass films become unstable to perturbations of a certain wavelength, which reflects [...]
Immobilization of biomolecules in nano-bottles
This work reports the fabrication of nano-bottles for the containment of biomolecules on a surface of the substrate. Nano-bottles of different sizes from 10 nm to 200 nm were prepared by using nanotextured polymers formed [...]
Polyimides with Fluorenyl Side Groups and Their Unusual, Unique Alignability of Liquid Crystals at the Film Surface
Polyimides (PIs) have been widely used in the microelectronics industry as dielectric materials because of their advantageous properties. In the present study, we synthesized CBDA-FDA and its analogue, poly(4,4’-(9,9-fluorenyl)diphenylene pyromellitimide) (PMDA-FDA) and then investigated quantitatively [...]
Functional Plastic Liquid Crystal Displays from II-VI Semiconductor Nanocomposite Thin Film Transistors on Polymers
MacNab F., Frechette P., Fong B., Li T., Shih I., Andrews M.P., McGill University and Silk Displays Inc, CA
This talk describes how II-VI semiconductors can be deposited from solution to create all-inorganic TFTs on plastic. We discuss semiconductor film growth mechanisms that arise from competition among nanoparticle formation, particle-particle accretion in solution and [...]
Windows of Opportunity: A New Platform to Understand Structure-Property Relationships in Nanotechnology
Excitement about nanotechnology derives from unique size/structure dependent properties of nanoscale materials. Methods to prepare a wide range of structures are now available, but a limited fundamental understanding of structure-function relationships remains a significant challenge [...]
Nanoparticles Formed by Complexation of Poly-gamma-glutamic Acid with Lead Ions
Bodnar M., Kjoniksen A-L, Hartmann J.F., Daróczi L., Nystrom B., Borbely J., University of Debrecen, HU
Recently, reduction of water consumption by industry has been an important challenge. Enhanced ultrafiltration with polymers is a feasible method to remove metal ions from diluted wastewater streams. Biomacromolecules, biodegradable polymers as biomaterials have an [...]
Transport of Ionic Electrolytes and Proteins through Semipermeable Membrane
Surfactants are known to influence functions of many proteins in membranes, cells and tissues. Because most studies to elucidate the effects of surfactants on membrane-bound proteins and cells employed heterogeneous or complex systems, it is [...]
Effect of particle size on the mechanical properties of polymer matrix nanocomposite
In the present investigation, we have studied effect of inclusions size on mechanical properties of nanocomposite materials containing SC-15 epoxy resin and TiO2 particles. Micro sized particles have little effect on modulus and strength of [...]
Optical and structural characterization of nanostructured Alq3 with negative in-plane birefringence
In this study, we investigate the optical and structural properties of tilted columnar thin films composed of Alq3 in order to better understand the source of the in-plane birefringence exhibited by such films which is [...]
Atomistic Modeling for Boron Diffusion in Strained Silicon Substrate
Kim H-G, Kim J-S, Kim Y.K., Yoon K-S, Kim H-G, Kim J-S, Kim Y.K., Kim H-G, Kim J-S, Kim Y.K., Won T., Inha University, KR
We report our KMC study on the effect of strain on B diffusion in silicon and relaxed SiGe layer by assuming a virtual strained structure with charged defect energy and diffusivity. The simulation results imply [...]
Fabrication of electrochemical bio-sensors for the detection of glucose and hydrazine using ZnO nanonails grown by the thermal evaporation process
Umar A., Kim J.H., Kim S-H, Kim J.H., Kim S-H, Park Y.K., Hahn Y.B., Chonbuk National University, KR
Well-crystallized zinc oxide nanonails have been synthesized in a large quantity via a thermal evaporation method using the metallic zinc powder without the use of any metal catalyst or additives. The detailed structural and optical [...]
Batch Fabrication of Nanostructured Heterogeneous Microarrays for Chemical Sensing
Barborini E., Leccardi M., Bertolini G., Rorato O., Repetto P., Bandiera D., Gatelli M., Raso A., Garibbo A., Seminara L., Ducati C., Milani P., Tethis srl, IT
Deposition of nanoparticles from the gas phase is becoming an enabling technology for batch production of nanostructured devices. Supersonic clusters beam deposition (SCBD) has been shown as a viable route for the production of nanostructured [...]
TailorMat® – Nanostructured Materials by Design using Supercritical Fluids
SCF-Technologies has build a technology platform for tailor-made nanostructured materials based on more than 10 years experience in the high pressure industry and an intensive effort in nanotechnology research. Using the special properties from supercritical [...]
Porous Hierarchical Structures of TiO2 Nanotubes
Recently, carbon nanotubes have been a subject of intensive research due to potential uses in the fields of adsorption, microelectronics, hydrogen storage and catalysis, among others. Other inorganic nanotubes have been synthesized too, i.e., TiO2, [...]
Nano hetero nuclear fuel structure
The direct energy conversion of nuclear energy requires nano-structured nuclear fuel. The principle of the radiation energy direct conversion is the usage of the knock-on electrons produced by the moving particle interaction with the lattice. [...]
Functional Polymers for Advanced Nanotechnology
Nanotechnology has been seeking precision on organic electronics with enhanced device performances at low cost. Recently, there are growing interests in the functional integration generated using functional polymers to fabricate novel devices, which satisfy a [...]
Intrinsic Effects of Materials on Superhydrophobicity of Polymer Replicas from Nature
The present work suggests a mass-producible and large scale fabrication method of superhydrophobic polymeric surfaces by means of material processing equipments which can maximize productivity and cost effectiveness. We fabricated two types of polymeric lotus [...]
Photoactive titania and nanoparticulate silver-titania composite thin films as potent antimicrobial coatings
Nanocrystalline titania (anatase) and Ag-doped titania (anatase) coatings were prepared on glass microscope slides by a sol-gel dip-coating method. The resultant coatings were characterised by X-ray diffraction, XANES, Raman, SEM/WDX, XPS and UV visible techniques [...]
Atmospheric Pressure Ion Deposition – Selected applications
Atmospheric Pressure Ion Deposition: a novel experimental setup allows the processing of various materials (e.g. polymers, small molecules, nanoparticles and biomolecules) into thin structured films.This method generates by means of electrostatic forces a fine dispersed [...]
Nanostructured photocatalytic TiO2-xNx thin films prepared by reactive magnetron sputtering
Nitrogen-doped titania films were grown by magnetron sputtering. XPS analysis was used to identify the nitrogen content and the oxygen stoichiometry of the samples. XANES evidenced an increase of the Ti 3d charge density. XRD [...]
Structural and magnetic characterization of 3d metal clusters embedded in fullerite matrices
Metal clusters embedded in fullerite matrices are produced by high vacuum co-evaporation. XPS and X-ray absorption revealed that the metal clusters are protected against contamination. XRD analysis is used to determine the average custer size, [...]
Development of a novel material for reversible hydrogen storage
An efficient hydrogen storage material is a hot topic of discussion among modern scientific community worldwide. The efficiency of the hydrogen storage material is measured on the basis of their adsorption enthalpy. Low adsorption enthalpy [...]
Current-induced Breakdown of Carbon Nanofibers Under Vacuum and Atmospheric Conditions
Kitsuki H., Ngo Q., Suzuki M., Gleason K., Wilhite P., Cassell A.M., Moylan C.R., Li J., Yang C.Y., Santa Clara University, US
Current-induced breakdown phenomena of carbon nanofibers (CNFs) for the development of carbon-based interconnects are investigated to reveal current-carrying capacity and reliability of CNF devices. Scanning transmission electron microscopy (STEM) techniques are developed to study the [...]
Self-assembly of Carbon Nanotubes on Large Structures and on Ceramics
Self-assembly techniques as related to carbon nanotubes (CNTs) is explored. The first is the self-assembly on the inside wall of stainless steel tubings using C2H4 as the carbon source and the iron nanostructures in the [...]
Porous filter with spatially graded response
Glancing Angle Deposition (GLAD) has become a common technique for producing thin porous films with various structural features. In the current work, we have further modified GLAD in order to create porous structures that have [...]
Influences of the Surrounding Materials on CdTe Quantum Dots within Self-Assembled Thin Films
Semiconductor nanocrystals (NCs) have been successfully incorporated into nanostructured light emitting devices (NLEDs) and now promise applications in electronic, medical and telecommunication industries. To better understand and further develop NLEDs it is important to consider [...]
Development of Mn2O3/SiO2 nanocomposite by sol-gel route
Prakash I., Muralidharan P., Nallamuthu N., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN
Nanocrystalline manganese oxides have been gaining importance in the fields of catalysis, electrochemistry, ion-exchange materials, magnetite, sensors, batteries, etc. An in - situ sol-gel process is investigated to synthesize uniform dispersion of the Mn2O3 nanocrystals [...]
Light Induced Self-Inscription (LISI) in Organo-silica Network Glasses and Nanocomposite Polymers
Andrews M.P., Belanger N., Manseau M.-P., Duxin N., Maron E., Lofgreen J., van Veggel F.C.J.M., McGill University, CA
This talk focuses on two classes of nanocomposite media that exhibit Light Induced Self Inscription. We describe LISI in sol-gel derived photosensitive glasses containing nanodispersions of zirconia, titania and noble metal nanoparticles. Waveguiding at 488 [...]
Controllable synthesis of patterned ZnO nanostructures based on the templation of plant cell walls
Cheng C.-L., Chen C.C., Chen T.T., Chen Y.F., Cheng C.-L., Lin H-Y, Chen C.C., Chen T.T., Chen Y.F., Cheng C.-L., Chen C.C., Chen T.T., Chen Y.F., Cheng C.-L., National Taiwan University, TW
A novel approach based on vapor-phase transport technique using Au-coated plant cell walls with metallic ions as the catalyst has been developed to synthesize ZnO nanostructures. It is shown that plant cell walls can serve [...]
Wide Wavelength tuning of ZnSe Nanostructures by Temperature
As one of the most important II-VI compound semiconductors with a direct wide band gap, zinc selenide (ZnSe, bulk crystal Eg = 2.7 eV at 300K) [1] exhibits a great potential for various applications. In [...]
Synthesis of three-dimensional Mn3O4 nanostructures
Owing to the large specific surface area and other superior properties over their bulk counterparts arising from quantum size effect, nanoscaled and nanostructured materials have attracted considerate research interest and many novel nanoscale materials have [...]
Sensor application of ZnO nanowires on microheater
We fabricated the ZnO nanowire network device using sol-gel synthesis method on the pre-patterned electrode and tested the electrical property for chemical sensing. The electrodes were prepared in various ways, for example, photolithographically defined interdigitated [...]
Fabrication of ZnO hybrid structures and light emitting diode applications
Vertically well aligned ZnO nanorod arrays with a diameter of 50 - 150 nm were fabricated on Al2O3 substrates with and without GaN interlayers, and consequently covered with a crystalline ZnO film in-situ by a [...]
Effects of Silicon Nanowires on HepG2 Cell Adhesion and Spreading
The unique capabilities of nanomaterials make them good candidates for catalysts, biosensors, and even drug carriers. However, interactions of nanomaterials with biological systems and the environment may lead to potential toxicity. While there have been [...]
Electric field induced self-assembled nanostructures in spray deposited nanocrystalline CdX and HgX (X= Se and Te) thin films
In this paper we report on electric field induced self assembled nanostructures in the spray deposited nanocrystalline CdX and HgX thin films. Nanoparticles of II-VI semiconductors (CdX, HgX; X= Se, Te) have been synthesized using [...]
Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: May 20, 2007
Industry sector: Advanced Materials & Manufacturing
Topic: Advanced Materials for Engineering Applications
ISBN: 1-4200-6182-8