20 Result(s)
within
Nanotechnology
JI ZHOU
Article
-
Article
Open AccessHighly Thermally Conductive and Structurally Ultra-Stable Graphitic Films with Seamless Heterointerfaces for Extreme Thermal Management
Presenting the first investigation into the structurally bubbling-failure mechanism of graphitic film during cyclic liquid nitrogen shocks.
- ...
-
Article
Highly electrically conductive graphene papers via catalytic graphitization
The highly electrically conductive graphene papers prepared from graphene oxide have shown promising perspectives in flexible electronics, electromagnetic interference (EMI) shielding, and electrodes. To achie...
-
Article
Open AccessImprovement in mechanical properties in AlN-h-BN composites with high thermal conductivity
It is possible to improve the machinability of aluminum nitride-hexagonal boron nitride (AlN-h-BN) ceramics while maintaining high strength and high thermal conductivity. The composite ceramics with 0–30 wt% B...
-
Article
Open AccessAirborne particulate matter (PM2.5) triggers ocular hypertension and glaucoma through pyroptosis
Particulate matter (PM) is strongly linked to human health and has detrimental effects on the eye. Studies have, however, focused on the ocular surface, with limited research on the impact of PM2.5 on intraocular...
-
Article
Facile microwave-assisted synthesis of Ti3C2 MXene quantum dots for ratiometric fluorescence detection of hypochlorite
A dual-channel “naked-eye” colorimetric and ratio fluorescent probe has been developed based on titanium carbide quantum dots for the detection of curcumin and hypochlorite (ClO−). The fluorescence emission of T...
-
Article
ε-Poly-L-lysine-protected Ti3C2 MXene quantum dots with high quantum yield for fluorometric determination of cytochrome c and trypsin
Titanium carbide quantum dots functionalized with ε-poly-L-lysine (PLL) were synthesized by sonication cutting and hydrothermal synthesis. The deprotonated Ti3C2 MXene quantum dots (Ti3C2 MQDs) exhibit excitation...
-
Article
Open AccessDevelopmental programming of obesity by maternal exposure to concentrated ambient PM2.5 is maternally transmitted into the third generation in a mouse model
Obesity is an uncontrolled global epidemic and one of the leading global public health challenges. Maternal exposure to ambient fine particulate matter (PM2.5) may adversely program offspring’s adiposity, suggest...
-
Article
Open AccessTemperature Effect on the Mechanical Properties of Electrospun PU Nanofibers
Polyurethane (PU) nanofibers were prepared from electrospun method. Atomic force microscopy (AFM) was employed to characterize the mechanical properties of electrospun PU nanofibers. The impact of temperature ...
-
Article
Open AccessExposure to concentrated ambient PM2.5 alters the composition of gut microbiota in a murine model
Exposure to ambient fine particulate matter (PM2.5) correlates with abnormal glucose homeostasis, but the underlying biological mechanism has not been fully understood. The gut microbiota is an emerging crucial p...
-
Article
Enhanced thermal expansion by micro-displacement amplifying mechanical metamaterial
It is important to achieve materials with large coefficient of thermal expansion in science and engineering applications. In this paper, we propose an experimentally-validated metamaterial approach to amplify ...
-
Article
Open AccessWaste Fiber Powder Functionalized with Silver Nanoprism for Enhanced Raman Scattering Analysis
Biomass disks based on fine powder produced from disposed wool fibers were prepared for surface-enhanced Raman scattering (SERS). The wool powders (WPs) were modified by silver nanoprisms via an assembly metho...
-
Article
A Comparison of Texture Development in an Experimental and Industrial Tertiary Oxide Scale in a Hot Strip Mill
Electron backscatter diffraction (EBSD) has been used to investigate the microstructure and texture-based features of an industrial tertiary oxide scale formed on a micro-alloyed low-carbon steel from a hot st...
-
Article
Enhanced performances of organic thin film transistors by dual interfacial modification of dielectric layer
In this paper, we demonstrate an effective method for the performance improvement of organic thin film transistors (OTFTs), in which the SiO2 dielectric layer was dually modified with polystyrene (PS) and hexame...
-
Article
Artificial isotropic magnetism and negative refraction of metamaterial consisting of dielectric spherical shells
We present a detailed study on the artificial magnetism of high-permittivity dielectric spherical shell array and the negative refraction behavior of the composite consisting of dielectric spherical shells and...
-
Article
Resistive switching in a negative temperature coefficient metal oxide memristive one-port
A current-controlled memristive one-port was constructed from cobalt monoxide (CoO) using a traditional solid reaction method at 1150 °C in argon atmosphere. Hysteretic current–voltage (I–V) characteristics and r...
-
Article
Solution-processed bulk heterojunction solar cells based on interpenetrating CdS nanowires and carbon nanotubes
Incorporation of a bulk heterojunction is an effective strategy to enhance charge separation and carrier transport in solar cells, and has been adopted in polymeric and colloidal nanoparticle solar cells to im...
-
Article
Open AccessLow-fired Y-type hexagonal ferrite for hyper frequency applications
Y-type hexagonal ferrite with planar magnetocrystalline anisotropy has ultrahigh cut-off frequency up to GHz and excellent magnetic properties in hyper frequency range, so that is regarded as the most suitable...
-
Article
Open AccessTowards rational design of low-temperature co-fired ceramic (LTCC) materials
High performance low temperature co-fired ceramic (LTCC) dielectrics is highly desired for next generation information technology. The rational design is a key issue for the development of new LTCC materials. ...
-
Article
Direct-writing construction of layered meshes from nanoparticles-vaseline composite inks: rheological properties and structures
Direct-writing is superior in the construction of arbitrarily designed three-dimensional (3D) structures. In this work, we develop a series of organic inks doped with nanoparticles to fabricate 3D meshes of in...
-
Article
Sol-gel derived Ba(Mg1/3Ta2/3)O3 thin films: Preparation and structure
Ba(Mg1/3Ta2/3)O3 thin films were prepared by a sol-gel process involving the reaction of barium isopropoxide, tantalum ethoxide, and magnesium acetate in 2-methoxyethanol and subsequently hydrolysis, spin-coating...
