Strong Magnetic Materials Fe3O4 Ferroferric Oxide Nano Powders

Our fe3o4 iron oxide nanoparticles is magnetic, high purity.

Ferroferric Oxide have 100-200nm with 99% purity use as the magetism and the catalyst in the filed.

Ferroferric Oxide Nanopowders have the characteristic of magnetic which use for large area in the industry, such as the raw materials of recording tape and telecommunication apparatus .

HONGWU Nano fe3o4 powder is magnetic, widely used in microwave absorbing materials.

Our company have Fe3O4 nanopowders for sale,the purity is 99% and the size is 100-200nm.

Fe3O4 magnetic nano powder due to its high permeability, can be used as a ferrite absorbing materials, used in the microwave absorption.

Buy Magnetic nanoparticles spherical iron 3 oxide powders fe3o4 black, find china honest supplier Hongwu Nanometer.

Gold supplier and exporter Hongwu International Spherical FE3O4 Iron Oxide black powders 100-200nm for sale.

HONGWU China factory retail / wholesale Ultrafine Fe3O4 powders Iron Oxide Black IONPs. COA, MSDS available, any need welcome to inquiry! 

Zinc Oxide nanowires/ZnO NWs, as an ideal material for the preparation of a Schottky contact type devices. Hongwu nanometer is professional manufacturer, supplier and exporter in china for nano materials in china. Our ZNO zinc oxide nanowires specification as follows: 1. D<100nm,L>5um,99.9%                2. D:100-200nm,L>1um,99.9%                          As nucleic acid detection is more and more widely applied to genotyping technology, clinical diagnostics and biomedical research and other fields, the traditional optical detection and real-time PCR technology have some disadvantages, such as high cost, no longer can meet the demand that the devices require the testing with high cost-effective, high speed and high sensitivity. By contrast, the one-dimensional material represented by the unmarked detection device, because of a high specific surface area, can offer the possibility for low-cost, simple and effective DNA testing. FET based on semiconductor nanowires is such a great potential device. Wherein, changing the metal - semiconductor interface of Schottky barrier height(SBH)can modulate device performance, which is a hotspot for researchers.        Zinc Oxide nanowires/ZnO NWs with excellent semiconductor and piezoelectric performance, is an ideal material for the preparation of a Schottky contact type devices. Researchers of the National Center for Nanoscience and other institutions made use of exerting external strains on Zinc Oxide nanowires to produce piezoelectric potential. Then on the basis of piezoelectric effect, the potential can be increased or decreased the effect of SBH link interface the carrier transportation, so that change the properties of nanowire-based devices. In addition, making specific hybridization between probe complementary target cDNA and nanowire adsorbed single-stranded DNA (the ssDNA), the device can achieve selective detection function.       The experimental results of this work showed that, when the compressive strain applied to the Zinc Oxide nanowire-based DNA sensor became -0.59%, the relative value of the current response increased by 454%. This fully illustrated that the modified method using a piezoelectric device electronics effect can significantly improve the detection performance of the Schottky contact type ZnO nanowire based DNA sensor.

High pure graphite powder is an important industrial raw material in industry, which is applied to lubrication, sealing, conductive, high temperature, refractory materials, chemical production and other industrial fields.

High and stable quality nano tungsten carbide cobalt ally powders with differenet Co content manufactured by Hongwu Nano.  Nano WC-Co powder is mainly for cemented carbide for sintering and surface alloying for its excellent properties.