Showing Spotlights 129 - 136 of 2225 in category All (newest first):
Imagine being able to print out healthy tissue with just a sample of a patient's own cells. While printed replacement human body parts might seem like science fiction, the use of 3D printing technologies for medical applications is a relatively new but rapidly expanding research field, although still quite a way from clinical application for treating patients. However, currently available bioinks cannot 3D print self-sustaining anatomic-size structures containing live cells. To overcome the limitations of existing bioinks, researchers have developed a highly printable bioink for fabricating large scale, cell-laden, bioactive scaffolds.
Mar 20th, 2018
Researchers report a simple method to facilitate the mass production of flexible photonic crystals (FPCs) with full-color grating properties. The nanoimprinted FPC structure is capable of displaying full-color grating properties because of the nano-hemispherical structures on its surface. This novel approach requires relatively inexpensive equipment and much less time than previous techniques. In addition, multiple anti counterfeiting applications can be easily implemented based on the polymer's intrinsic characteristics.
Mar 19th, 2018
Despite the rise of graphene and other two-dimensional (2-D) materials, semiconducting single-walled carbon nanotubes are still regarded as strong candidates for the next generation of high-performance, ultra-scaled and thin-film transistors as well as for opto-electronic devices. In new work, a European team of researchers demonstrates simultaneous confinement of electrons and holes between artificial defects separated by less than 10 nm in semiconducting carbon nanotubes.
Mar 16th, 2018
Scientists have discovered that cell sex is an important overlooked factor at the nanobio interfaces. More specifically, depending on their sex, cells respond differently to the exact same type of nanoparticles. These findings have a capacity to optimize clinical translation of nanoparticles and also to help researchers to better design and produce safe and efficient therapeutic sex-specific nanoparticles. It is likely that there are other undiscovered differences that could influence nanoparticle uptake.
Mar 15th, 2018
Single- or few-layer black phosphorus (BP) is one of the most promising two-dimensional semiconductors for electronic and optoelectronic device applications but its environmental instability has always posed a major hurdle for BP-based devices. In contrast, black phosphorus analogues (BPA) nanoarchitectures not only own the similar folded structure of BP, its tunable bandgap energy band and high carrier mobility, but exhibit excellent environmental stability as well. BPA nanosheets can be fabricated by a facile liquid-phase exfoliation method.
Mar 14th, 2018
Given the vast, and still rising, cost of optical lithography tools, researchers have considered alternative patterning technologies such as electron beam lithography (EBL), and nanoimprint technology (NIL) in order to enable the manufacturing of next-generation integrated circuits, flash memory, and hard disk drives. Now that the length scales attainable by top-down lithography are approaching that of bottom-up self-assembly found in polymers and small molecules, scientists are increasingly looking at bottom-up patterning technologies based on self-assembly.
Mar 9th, 2018
Due to its fascinating properties, black phosphorus (BP) has demonstrated appealing potential for not only building (opto)electronic devices, but also in many other areas such as lithium-ion batteries, solar cells, sensors, thermoelectric devices, supercapacitors, and phototherapy. Researchers now have demonstrated that modifying BP with metal ions solved its previous instability problem, which hindered the practical application of BP in electronics and optoelectronics; while at the same time further enhancing the original superior transport properties.
Mar 7th, 2018
Enzymatic biofuel cells (EBFCs) are bioelectronic devices that utilize enzymes as the electrocatalysts to catalyze the oxidation of fuel and/or the reduction of oxygen or peroxide for energy conversion to electricity. EBFCs have already been demonstrated as wearable epidermal tattoo biosensors and in new work, researchers report the fabrication flexible EBFCs with flexible nanoporous gold electrodes that were modified with lactate oxidase and bilirubin oxidase for use as a lactate/O2 biofuel cell.
Mar 6th, 2018