Papers:
Nanotechnology systems for drug delivery, multi-modal targeting and imaging of tumors
Cancer is one of the leading causes of deaths (1.6 million deaths annually) in USA. Despite recent advances in chemotherapy, the survival rates in lung cancer patients are unsatisfactory due to limited efficiency of systemic [...]
Stability of Functionalized Magnetic Particles in a Physiologic Fluid
Baca Ramos K., Martínez Pérez C.A., Camacho Montes H., Olivas Armendáriz I., Martel A., García-Casillas P.E., Universidad Autonoma de Ciudad Juarez, MX
Magnetic materials are widely used in biomedical applications such as magnetic separation, magnetic resonance imaging, drug delivery and hyperthermia. In these applications the nanoparticles are functionalized in a core/shell type with polymeric materials which contains [...]
Synthesis, Characterization and Toxic Metal-Binding Ability of Poly(γ-glutamic acid)-coated Superparamagnetic Nanoparticles
Superparamagnetic iron oxide nanoparticles (SPIONPs) coated with a non-toxic, edible biopolymer poly(-glutamic acid) (PGA-coated SPIONs) were synthesized by co-precipitation method, characterized and evaluated for their possible toxic metal-binding ability in the treatment of metal intoxication [...]
Continuous synthesis of highly-specific silicon nanopowder on the pilot-plant scale
Hülser T., Schnurre S.M., Schulz C., Wiggers H., Institute of Energy and Environmental Technology (IUTA), DE
In this work we present the formation process of crystalline and amorphous nanostructured silicon made from a continuously operating hot-wall reactor synthesis process. In this reactor, silicon particles are synthesized at variable operating conditions varying [...]
Flame Deposition of Superhydrophobic and Superhydrophilic Nanoparticle Coatings on Paperboard Materials
Aromaa M., Haapanen J., Teisala H., Tuominen M., Stepien M., Saarinen J.J., Toivakka M., Kuusipalo J., Mäkelä J.M., Tampere University of Technology, FI
Liquid Flame Spray is one of the flame aerosol methods for the nanoparticle synthesis. Here, it is used in depositing the particles directly on a moving roll-to-roll substrate. The deposition process is performed in a [...]
A Novel Pulsed High-density Plasma Process for Nanoparticle Synthesis
Today there are various plasma techniques where material is sputtered and used to synthesize nanoparticles. However, we have been unable to identify anyone ionizing the sputtered material in such a process. The advantage of ionizing [...]
Synthesis of Copper Nanoparticles by a High Power Pulse Hollow Cathode
A novel plasma-based nanoparticle synthesis method using high power pulses has been developed. A high power pulse similar to high power impulse magnetron sputtering is applied to a cylindrical hollow cathode leading to a high [...]
Effect of particle presence on gas phase temperature in the flame spray pyrolysis
Engel S.R., Gao Yi, Koegler A.F., Kilian D., Seeger T., Peukert W., Leipertz A., Department of Engineering Thermodynamics, DE
For the production of manufactured nanoparticles at a commercial scale flame processes are most frequently used. An important basis for understanding the complexity of this process is the characterization of the combustion process in dependence [...]
Iron-oxide nanoparticle synthesis from liquid spray flames under variable pressure conditions
Iron-oxide nanoparticles have been synthesized via liquid-fed flame spray pyrolysis (FSP) under variable pressure conditions. The work focuses on the effect of pressure, precursor flow rate, and flame stoichiometry on particle size, composition, and morphology. [...]
Carbon coated FeRu and CoRu nanomagnets and their potential for medical application
El-Gendy A.A., Hampel S., Leonhardt A., Khavrus V.O., Büchner B., Klingeler R., National Institute for standards, EG
This work presents a novel synthesis procedure for carbon-coated magnetic nanoparticles and their detailed characterization regarding structure, morphology, and magnetic properties. To be specific, the high pressure chemical vapour deposition technique (HPCVD) has been applied [...]
Structural refinement and photoluminescence properties of cube-like (Ca1-xCux)TiO3 crystals synthesized by the microwave-hydrothermal method
Oliveira L.H., de Moura A.P., Cavalcante L.S., Gutierrez S.A., Longo E., Varela J.A., Universidade Federal de São Carlos, BR
In this work, (Ca1-xCux)TiO3 crystals with (x = 0, 0.01 and 0.02), were synthesized by the microwave-hydrothermal method at 140ºC for 32 min. The photo-physical properties were studied to analyze the influence of Cu2+ doping [...]
Composition and magnetic properties of zinc ferrite nanoparticles prepared by co-precipitation method at different temperatures
In this work, single phase zinc ferrite nanoparticles have been prepared by coprecipitation method at 40, 60 and 80 °C without any subsequent calcination and the effect of the reaction temperature on the composition, structural [...]
Influence of an alternating current on silver nanoparticles’ formation processes in a polymeric matrix
Amerkhanova Sh.K., Belgibaeva D.S., Shlyapov R.M., Tatibaeva M.S., Erzhanova Sh.A., Karaganda State University, KZ
Influence of an alternating current with various frequencies from 500 to 5000 Hz on silver nanoparticles formation process in the presence of polyvinyl alcohol is investigated. It is shown that influence by an alternating current [...]
Microwave-assisted hydrothermal synthesis of ZnO powders with different reagents
Xavier C.S., de Moura A.P., Li M.S., Longo E., Varela J.A., Cava S., Universidade Federal de Pelotas, BR
Zinc oxide (ZnO) is an exceptionally important semiconductor with a direct wide band gap (3.37 eV) and large excitation binding energy (60 meV) at room temperature [1]. In this work, zinc oxide powders were synthesized [...]
Photocatalytic activity of mesoporous titanium dioxide nanoparticles under visible light irradiation
Using surfactant and other chemicals, nano-template consisting of SiO2 was first prepared. Then the template was treated in titanium tetra-isopropoxide dissolved in 1-propanol to convert silicon into titanium. The product was heated in air or [...]
Water-soluble nanoparticles as an universal imaging tool
Niehaus J., Becker S., Schmidtke C., Ness D., Werner K., Weller H., Center for Applied Nanotechnology, DE
Here we present a two step concept for phase transfer of NPs soluble in non-polar media. The first step is an exchange of the stabilizing organic molecules against a multidental binding short chain polymer. In [...]
Nanomaterials and nanotechnologies for the conservation of the materials of cultural heritage
Rathousky J., Kalousek V., Zouzelka R., J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, CZ
Conservation science is one of the most complex topics in the materials science as it requires expertise ranging from the history of art and archaeology to the advanced analytical and physical chemistry. However, the recent [...]
A novel method for bacteria inactivation using Engineered Water Nanostructures
Herein we present a novel method for microbial disinfection that utilizes the formation of unique Engineered Water Nanostructures (EWNS) generated via the electrospraying of water. Electropsray is a method widely, used to generate aerosols and [...]
Rapid Combustion Synthesis of Zinc Oxide Nanostructures
In this contribution we show that Zn oxide nanostructures of various morphologies can be formed at high rates by using a counter-flow flame. A 1.0-mm in diameter Zn probes with a purity of ~99.99% is [...]
CdMoO4 synthesized by a microwave-assisted hydrothermal method and their photoluminescence and photocatality properties
de Moura A.P., Oliveira L.H., Xavier C.S., Rosa I.L.V., Li M.S., Longo E., Varela J.A., Universidade Estadual Paulista, BR
Metal molybdates had a high application potential in various fields such as photoluminescence, microwave applications, optical fibers, scintillator materials, humidity sensors, and catalysis. In this work CdMoO4 nanoparticles were obtained under hydrothermal conditions using microwave [...]
Radon Mitigation Efficiency using Nano-size Carbon Colloid
Kim D-H., Kim M-J, Kim S-H, Lee K.H., Kim D-H., Kim M-J, Kim S-H, Kim D-H., Kim M-J, Kim S-H, Jung K.S., Cho S.Y., Yonsei University, KR
Radon is classified as the second leading cause of lung cancer in the US. There have been plenty of trials to mitigate indoor radon gas which penetrated through the floor cracks, building materials and groundwater [...]
Fabrication and characterization of Eco-Friendly Heat Insulating Materials using inorganic Nanofillers such as Titanate Nanotubes and Layered Double Hydroxides
In this work, we have synthesized Titanate nanotube(TiNT) and Layered Double Hydroxide(LDH) nanoparticles and studied about their applicable properties as inorganic filler due to their high porous structure. The synthetic parameters affecting the particle size [...]
Highly Luminescent Quantum Dots: New Tools for Biological Applications
Quantum dots (QDs) are a special class of nano particles with unique optical properties. They are very good candidate materials for medical and biological applications. In order to apply QDs to biological systems, they should [...]
A toolbox-set of Nanoparticles
The development of nanotechnology has increased exponentially over the past decades with numerous nanoparticles (NPs) offering a “toolbox-set” ready to be used in a wide range of applications such as materials science, catalysis, medicine, energy [...]
Synthesis and Characterization of Nickel Ferrite (NiFe2O4) nanoparticles with Silver Addition for H2S gas detectors
Domínguez-Ruiz N., García-Casilla P.E., Hernández-Paz J.F., Ramos-Murillo M., Ambrosio-Lazaro R.C., Universidad Autonoma de Ciudad Juarez, MX
The objective of this work is to study the influence of silver as additive in nickel ferrite sensors to improve the hydrogen sulfide detection sensibility. Sensors made of NiFe2O4 nanoparticles with and without Silver (3 [...]
A simple approach for the synthesis of anisometric particles by electrospinning
We developed a new and simple approach to fabricate large amounts of anisometric particles via controlled fragmentation of electrospun composite nanofibers. Polystyrene nanoparticles were embedded as void precursors in silica fibers by electrospinning of mixed [...]
Synthesis of Non-Spherical CdSe Quantum Dots
Here we describe the synthesis of non-spherical CdSe quantum dots (QDs) through high temperature reduction in the presence of TOP (Tri-n-octylphosphine) and TOPO (Tri-n-octylphosphine oxide). High affinity of phosphine oxide to the surface of CdSe [...]
Pulsed laser generation of clean colloidal metal nanoparticles
In contrast to colloidal chemistry, pulsed laser ablation in liquids is a physical process that generates nanoparticles e.g. from precious metals or alloys directly in water or organic solvents. Zeta potential values up to -80 [...]
Nanogel Star Polymer Nanostructures of Controlled Size, Molecular Architecture and Functionality: No Assembly Required
Miller R.D., Sly J., Lee V.Y., Appel E., Nguyen T., Nunes H., Tjio M., Gomez L., McNeil M., Munninghoff J., Rowan A.E., IBM Almaden Research Center, US
We have developed versatile routes to nanogel core, multiarm star polymeric unimolecular amphiphiles that provides exquisite control over molecular size, polydispersity, chain and periphery functionality which eliminate the dynamic equilibrium associated with polymeric micelles. . [...]
Facile doping of silica nanoparticles with far-red cyanine dyes using the microemulsion method
We prepared silica NPs doped with two far-red absorption cyanine dyes, FR670 and Cy5, using the microemulsion method. At these wavelengths there is less autofluorescence from biological molecules, solvents and substrates. The effects of changing [...]
CdSe Nanoparticles in Silica Matrix by Sol Gel method
‘Quantum dots’ or nanoparticles of diverse semiconductor materials are extensively studied because of their interesting size dependent properties. It is further interesting to organize the quantum dots in the form of superlattices thin films, monolithics, [...]
One-pot synthesis of monodisperse PbSe quantum dots and graphene oxide nanocomposites
A new, one-pot method to synthesize monodisperse PbSe quantum dots (QDs) and graphene oxide (GO) nanocomposites (GO-PbSeQDs) is reported here. PbCl2 complexed with oleylamine was used as the Pb precursor. Se powder dissolved in long [...]
Synthesis and characterization of copper oxide decorated zinc oxide nanorods
Lim S.K., Hong S.H., Hwang S.H., Kim H-S, Kim S., Lee D.J., Kim H-S, Kim S., DGIST(Daegu Gyeongbuk Institute of Science & Technology), KR
One-dimentional nanostructures in the form of nanorods, nanowires, nanofibers or nanotubes, appear as an exciting research area for their great potential of applications. Zinc oxide is an n-type semiconductor that has been well known for [...]
A Novel High Yield Process for Gold Sulfide Nanoparticle Synthesis via Shifting Equilibrium of Self-Assembly Reaction
This project is focused on the scale up of gold-gold sulfide (GGS) nanoparticles with desired near infrared peak (nIR) that can be used for therapeutic applications. By combining published methods for 1-step self-assembly of GGS [...]
Synthesis of non-oxide ceramic powders by carbothermal reduction of a combustion synthesis precursor
Tis wrok introduced a novel method for sunthesizing non-oxide ceramic powders by the combination of low temperature solution combustion synthesis (LCS) and carbothermal reduction. Firstly, a homogeneous precursor consisting of fine oxide and carbon particles [...]
Luminescent Terbium/Europium chelates-based Silica Nanoparticles : Stability and Incorporation Efficiency measured by Radioactive Probe
Wartenberg N., Raccurt O., Mazzanti M., Imbert D., Bourgeat-Lami E., Commissariat à l’Energie Atomique, FR
We describe an original method based on europium-chelated radioactive measurements to investigate and compare the incorporation (by a reverse microemulsion-mediated sol-gel process without covalent bond) and the stability of two different organolanthanides into silica nanoparticles. [...]
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites (Volume 1)
Published: June 18, 2012
Industry sector: Advanced Materials & Manufacturing
Topic: Nanoparticle Synthesis & Applications
ISBN: 978-1-4665-6274-5