Single-crystalline diluted magnetic semiconductor GaN:Mn nanowires with controlled Mn concentrations have been successfully synthesized and incorporated into devices (see Figure). These exhibit Curie temperatures above room temperature, magnetoresistances near spin-dependent transport. The are used as building blocks for the fabrication of GaN:Mn/n-SiC based light-emitting diodes.

Well-defined three dimensional photonic crystals (PCs) of hydrogels are fabricated by prism holographic lithography over large areas. The hydrogel PCs, swollen in the humidity air, show a tunable optical stop-band response to temperature. thermoresponsive behavior is caused viscoelastic deformation upon temperature change, which investigated capturing structure with silica.

The dynamic breakup of emulsion droplets was demonstrated in double-layered microfluidic devices equipped with designed pneumatic actuators. Uniform droplets, produced by shearing at a T-junction, were broken into smaller when they passed downstream through constrictions formed pneumatically actuated valve the upper control layer. valve-assisted droplet significantly affected shape and layout valves on flow channel. Interestingly, actuating immediately above sizes controlled precisely...

Molybdenum-99 (99Mo) is the most important isotope because its daughter isotope, technetium-99m (99mTc), has been widely used medical radioisotope for more than 50 years, accounting > 80% of total nuclear diagnostics worldwide. In this review, radiochemical routes production 99Mo, and aspects selecting a suitable process strategy are discussed from historical viewpoint 99Mo technology developments. Most industrial-scale processes have based on fission 235U. Recently, issues raised conversion...

In this study, we incorporated mixing units of three-dimensional (3D) interconnected pore network inside microfluidic channels by combining single prism holographic lithography and photolithography. 3D structures were generated the interference four laser beams a truncated triangular pyramidal prism. The levelling between porous channel walls was greatly improved employing supercritical drying, which induced negligible internal capillary stresses reduced substantially anisotropic volume...

In this Letter, we present an intriguing method for fabricating polymeric superhydrophobic surfaces by reactive-ion etching of holographically featured three-dimensional structures. Using the proposed strategy, generated both lotus and gecko simply controlling incident angle laser beam during holographic lithography. The adhesion force gecko-state was highest yet reported artificial surface. well-controlled patterns enable in-depth understanding superadhesive surfaces. particular,...

We present a novel one-step flow process to synthesize biocompatible gold nanorods with tunable absorption and surface ligands. Photothermal optical coherence tomography (OCT) of human breast tissue is successfully demonstrated using tailored designed have strong in the near-infrared range.

We present a successive microfluidic approach to create and characterize hierarchical catalyst structures consisting of metal-decorated nanoparticles that are assembled into porous microparticles ("supraball" catalysts). First, using silicon microreactor, platinum with very narrow size distribution grown immobilized uniformly onto iron oxide/silica core–shell nanospheres. The Pt-decorated silica nanospheres then uniform, spherical, micron-sized particles by emulsion templates generated drop...

In this paper, we report a rapid and facile method for fabricating colloidal photonic crystals inside microchannels of radially symmetric microfluidic chips which were made using soft-lithography. As the suspension monodisperse silica or polystyrene latex spheres was driven to flow through channels under action centrifugal force, quickly assembled into face centered cubic arrangement had few stop bands. The soft-microfluidic cells confined designed patterns. optical reflectance modulated by...

Holographic lithography in combination with photo-lithography provides a novel optofluidic platform through incorporation of periodic photonic units inside the microfluidic chips highly compatible and facile way.

Mosaic patterns of blue, green, and orange colors (see figure) are obtained using a multistep photolithography process. Inverse opal films have been pixellated by this process colloidal crystals as templates, resulting in multicolor patterns. The degree photopolymerization is controlled adjusting the UV exposure time and, thus, refractive color inverse can be modulated.

We demonstrate a new type of photonic crystal nanolaser incorporated into microfluidic chip, which is fabricated by multilayer soft lithography. Experimentally, room-temperature continuous-wave lasing operation was achieved integrating nanocavity with unit, in the flow medium both enhances rate heat removal and modulates refractive index contrast. Furthermore, using proposed system, dynamic modulation resonance wavelength far-field radiation pattern can be introducing bottom reflector across...

Colloidal particles are used as elemental building blocks to construct biofunctional nanostructures. In particular, multidimensional periodic arrangements of colloidal such planar arrays and spherical assemblies can be in a wide range biological fields. The spatial regularity structures at the submicron-scale gives rise special features photonic bandgap (PBG) selective permeability, which cannot achieved by single particles. Recent advances microfluidics technologies enable fabrication...

Kinetic control of crystallization, fast mass transfer as well surface morphology the substrate particles are important factors for growth hyper-branched gold structures.

Photonic crystals (PCs) are periodic dielectric structures that have a band-gap forbids propagation of certain range wavelengths light. This property enables control light with remarkable facility by modification the band-gaps and produce effects impossible conventional optics. Using chemically functionalized PCs, where chemical functional group consists amine carboxyl group, in conjunction biomolecular probe material, detection pathogens viral disease is possible, indicated shift wavelength...

Uniform polymer microbeads with highly loaded quantum dots (QDs) are produced using high-throughput coherent jet breakup of a biocompatible poly(ethylene glycol) diacrylate (PEGDA) prepolymer resin, followed by in-line photopolymerization. A spiraling and gradually widening channel enables maximum absorption radiated UV light for the photopolymerization without coalescence clogging issues. Although dripping mode in general provides superior uniformity to mode, our nozzle design tapered...

Through the looking glass: Holographic lithography through a microprism array enables production of microstructured arrays with 3D internal nanoscale features (see picture). In single-step exposure 0.1 s, thousands are generated in spot size about 1 cm2. They exhibit 14-times enhanced fluorescence compared conventional microarrays. Detailed facts importance to specialist readers published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. made...

The widely used medical isotope technetium-99 m (99mTc) is a daughter of Molybdenum-99 (99Mo), which mainly produced using dedicated research reactors from the nuclear fission uranium-235 (235U). 99mTc has been for several decades, covers about 80% all diagnostics procedures. Recently, instability supply become an important topic throughout international radioisotope communities. aging major 99Mo production also caused frequent shutdowns. It triggered movements to establish new production,...