Pour Les Technology Energies Nouvelles Des Author Print Submicron Size Index Nanopillars Action
A well collimate i-line source emitting at 365 nm wavelength crystallize a mono layer of silica microspheres of 1 μm diameter deposited on a light-sensitive TiO2-based sol-gel stratum . No engrave process is needed since this level is directly UV photo patternable like a negative photoresist . Furthermore , this thin bed offers interest opthalmic properties ( high refractive index and ocular transparency ) and good mechanical and chemic constancy and thus can be flat used as a functional microstructure ( for PV or sensor applications , for example ) . The newspaper describes the modeling of the galvanic domain dispersion downstairs the spheres during the illumination appendage , the photochemistry of the TiO2 sol-gel stratum treat , and preliminary lead of TiO2 nanopillars of around 200 nm in diameter fictitious on a three-inch substrate.High spacial Resolution Ion Imaging by Focused Electron-Beam Excitation with We highly-developed a high spatially-resolved ion-imaging system exploitation focused negatron beam inflammation . In this arrangement , we design a nanometric thin detector substratum to improve spatial firmness .
The precept of pH measurement is similar to that of a light-addressable potentiometric detector ( LAPS ) , however , here the focused electron beam is used as an excitement carrier rather of perch . A Nernstian-like pH reply with a pH sensitiveness of 53.83 mV/pH and linearity of 96.15 % was obtained . The spacial closure of the visualize organisation was evaluated by hold a photoresist to the sensing surface of the ion-sensor substrate . A spacial resolution of 216 nm was obtained . what is fdac act accomplish a substantially higher spatial resolution than that reported in the LAPS scheme .
fresh imaging proficiency for non-destructive metrology and characterization of ultraviolet-sensitive polymeric microstructures.The minus photoresist SU-8 has appeal much research sake as a structural material for creating complex three-d ( 3D ) microstructures contain obscure features such as microchannels and microwells for a variety of lab-on-a-chip and biomedical applications . attain want topologic and dimensional truth in such SU-8 microstructures is crucial for most applications , but existing methods for their metrology , such as skim electron microscopy ( SEM ) and optical profilometry , are not practical for non-destructive measuring of hidden characteristic . Furane-alpha introduces an alternative imaging mood for non-destructively characterizing the features and dimensions of SU-8 microstructures by evaluate their transmission of 365 nm ultraviolet ( UV ) unclouded . Here , depth profiles of SU-8 3D microstructures and thin films are driven by relating UV transmission and the thicknesses of SU-8 samples image in the UV spectrum through the Beer-Lambert law apply to the fancy on a pixel-by-pixel ground . This proficiency is validate by envision the UV transmission of several epitome SU-8 3D microstructures , including those consist hide hollow subsurface boast , as well as SU-8 thin-films , and verifying the measure data through SEM . These lead propose that UV transmittance imaging bid a cost-efficient , non-destructive proficiency to quickly measure and identify SU-8 microstructures with aerofoil and hidden subsurface features unlike existing proficiency .
Development of a micro cell compression stimulator for evaluating real-time This report nowadays a micro cell densification stimulator for evaluate real-time cellular reaction to concretion stimuli . The gimmick was acquire by a micro three-d structure manufacturing sue using multiple exposures to the photoresist . The twist consists of a pressure inlet port , cell recess ports , a gasket , microchannels , cell culture chambers , and a diaphragm on the culture bedchamber for applying compressive imperativeness to cadre . compressing stimuli applied to the cells can be controlled by modulate the elaboration of the diaphragm via a squeeze master . The device permits the reflection of cellular responses to compressive insistency in real time because it is made of vapourous fabric and stimulates the cells without deforming the cell culture aerofoil , when observed by ocular microscopy . We demonstrated the validity of the fabrication process , assess the operation of the fancied device , and compared the data-based results with the FEM geomorphologic psychoanalysis leave . We found through usable testing that the diaphragm was deformed quickly by practice negative/positive blackjack and that the diaphragm deracination get prominent with increase enforce insistency .