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High-performance permanent magnets for energy-related applications require a high energy product (BH)max. It has been proposed that the two-phase materials exchange-coupled between magnetically hard and soft phases may greatly enhance the energy products.[1,2] More recently, self-assembly of two-component with hard magnetic phase FePt and soft magnetic phase Fe3Pt nanocomposites has successfully enhanced...
Magnetic nanoparticles are essential for advanced applications such as high performance permanent magnets, high density magnetic recording media, drug carriers and sensors in biomedical technology. Among various magnetic nanomaterials, the chemically ordered L10-phase Co(Fe)Pt NPs received considerable attention for its large uniaxial magnetocrystalline anisotropy. Controlled preparation of chemical...
High-dispersed unltra-small ferromagnetic nanoparticles show great potential in nano-device and magnetic hyperthermia [1-4]. Nd2Fe14B magnets are considered as the highest magnetic energy product ever discovered and have attracted much interest in various applications. To overcome the main drawback of conventional physical route, novel chemical synthesis for Nd2Fe14B oriented magnets have received...
Nanorod-like, cubic, and spherical FePt nanoparticles (NPs) are synthesized by adjusting the reaction temperature at 220 °C, 250 °C, and 298 °C, respectively. It has been found that the shapes of FePt NPs can be controlled by changing the preparing temperature while fixing the molar ratio of metal precursors, surfactants, and other parameters. Investigation shows that both the seed crystal structure...
A highly sensitive and stable L-Lactate sensor based on the synergic action of multi-wall carbon nanotube (MWCNTs) and ZnO nanoparticles has been developed. The unique sandwich-like layer structure (PDDA/LOD/ZnO/MWCNTs) provides a favorable microenvironment to keep the bioactivity of LOD and prevent enzyme molecule leakage. Therefore, the proposed L-Lactate biosensor exhibited good analytical performances...
Nanocrystalline SnO2 thin films were prepared by pulsed laser deposition techniques on clean glass substrates, and the films were then annealed for 30 min from 50 to 550??C with a step of 50??C, respectively. The investigation of X-ray diffraction confirmed that the various SnO2 thin films were consisted of nanoparticles with average grain size in the range of 23.7-28.9 nm. Root-mean-square surface...
Here we report on dynamic patterning of nanoparticles in microfluidic channels using patterned surface plasmon polaritons (SPP) from a gold thin film with highly ordered nanohole arrays. In particular, the constructive interference of SPPs from neighboring holes leads to a periodic distribution of SPP intensities. Such a SPP distribution drives the nanoparticles into positions of minimal SPP intensities,...
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