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Showing Spotlights 9 - 16 of 455 in category Fabrication Technologies and Devices (newest first):

 

Current state of fabricating molecular electronics

molecular_electronicsSince the early days of molecular electronics, tremendous progress has been achieved both theoretically and experimentally by scientists and engineers who were fascinated by intriguing physical, chemical phenomena, and potential device applications of molecular junctions. In a recent paper, scientists review recent experimental efforts for pursuing high-yield functional molecular devices, in which a bundle of molecules (the contacted molecules number more than 1000) is contained in a junction.

Posted: Jun 14th, 2017

3D-printed, fully integrated wireless sensor devices

3D-printed_sensorResearchers have demonstrated a fully integrated and packaged wireless sensor for environmental monitoring applications. The disposable sensor was developed using low-cost additive manufacturing technologies; namely, inkjet printing and 3D printing. This is a demonstration of 3D-printed fully-integrated System-on-Package (SoP) employing inkjet-printed sensors. This work could pave the way for low-cost disposable fully integrated wireless sensor nodes.

Posted: Jun 2nd, 2017

Holey two-dimensional nanosheets for efficient energy storage

nanosheetIn new work, a research team has developed a general synthesis strategy by employing graphene oxide as a sacrificial template to prepare various 2D holey transition metal oxide (TMO) nanosheets, including mixed metal oxides and simple metal oxides. This approach is universal for the synthesis of various 2D holey TMO nanosheets including mixed transition-metal oxides and simple oxides. This unique holey structure can minimize the restacking of 2D nanosheets and provide more active sites for alkali-ion storage.

Posted: May 31st, 2017

Dry/wet adhesive materials for wound care inspired by octopus suckers

octopus_suckersInspired by octopus arms, researchers demonstrate an uncomplicated and scalable templating technology for fabricating nanosuckers on PDMS substrates, using a scalable spin-coating technology. As the nanosuckers are pressed against a substrate, the flexible nanosuckers confirm to the substrate and deform by releasing the internal air between nanosuckers and the substrate, forming a seal and generating an adhesion force. The nanosucker adhesion is maintained over multiple contact cycles on both wet and dry surfaces.

Posted: May 25th, 2017

Bubble-printed patterning of quantum dots on plasmonic substrates

quantum_dot_printingThe use of quantum dots (QDs) in practical applications relies on the ability to precisely pattern QDs on substrates with desired optical properties. Typical direct-write printing techniques such as inkjet and gravure printing are limited in resolution (micron-scale), structural complexity, and require significant post-processing time. In new work, researchers use laser-induced bubble printing to pattern CdSe/CdS QDs on plasmonic substrates with submicron resolution, high throughput, and strong QD-substrate adhesion.

Posted: May 11th, 2017

Overview of synthesizing hybrid nanomaterials with microfluidics

Hybrid nanomaterials (nanohybrids) are composed of two or more components - at least one of which is nanoscale - exhibiting many distinct physicochemical properties and hold great promise for applications in optics, electronics, magnetics, new energy, environment protection, and biomedical engineering. Different types of nanohybrids have been successfully synthesized via microfluidic processes or hybrid microfluidic-batch processes. The synthesis of nanohybrids using microfluidic-based processes can fulfill many challenges present in conventional bottle batch methods.

Posted: May 9th, 2017

Merging nanotechnology and liquid crystals for better displays

liquid_crystalsAn recent analysis of the combined effect of nanoparticles and substrates on the concentration of mobile ions in liquid crystals considers both 100% pure and contaminated with ions substrates and nanoparticles. The results could be very useful for engineers trying to apply nanotechnology to liquid crystal devices. Specifically, the control of mobile ions in liquid crystals by means of nanoparticles and substrates of the cell tailored for specific applications - liquid crystal displays, light shutters, switches, modulators, etc.

Posted: Mar 8th, 2017

Wearable health monitor based on household paper

paper_electronicsPaper electronics - putting flexible electronic sensors and other circuits on regular paper - have the potential to cut the price of a wide range of medical tools, from point-of-care diagnostic tests to portable DNA detectors. In new work, researchers have now shown an integration strategy to rationally design an ultra-low cost health monitoring device, a Paper Watch, using recyclable household materials: non-functionalized papers.

Posted: Feb 16th, 2017