Nanotechnology Spotlight – Latest Articles

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Showing Spotlights 17 - 24 of 508 in category Fabrication Technologies and Devices (newest first):

 

Plate-like ferroelectric crystals synthesized with the help of MXenes

2D_ferroelectric_crystalPotassium niobate (KNbO3) is a a perovskite ferroelectric crystal that, due to its optical properties, has been found useful in many different areas of materials science research, including electro-optics, piezoelectric, and electronic applications. Researchers have now, for the first time, succeeded in producing large KNbO3 crystals with uniform flat shape, and c-axis texture, which makes the crystals useful for practical electro-optic applications. By using MXenes as precursor materials to grow ferroelectric crystals, their 2D nature is inherited by the ferroelectric crystals.

Feb 25th, 2019

Smart droplets clean and repair surfaces

nanoparticles_on_surfaceResearchers report a fluid-driven nanoparticle transportation clean-and-repair approach that reveals a novel self-healing system that conserves matter, behaves autonomously, and is implemented easily. Debris resting on a substrate is relocated, in one step, from undamaged to damaged regions of the substrate, using functional droplets that recognize and transport the nanoparticles. This simultaneous clean-and-repair approach reveals a novel self-healing system that conserves matter, behaves autonomously, and is implemented easily.

Feb 19th, 2019

Large-scale synthesis of metal nanoclusters with thermal shocks

nanoclusterResearchers report significant advances in developing a high-temperature, fast nanomanufacturing technique for the large-scale production of ultra small metal nanoclusters decorated in a graphene host matrix. The size and morphology of the metal nanoclusters can be controlled by varying the reaction temperature and the mass loading of metal salt in the graphene aerosol nanoreactors. This one-step continuous aerosol-based thermal shock technique offers considerable potential for the manufacturing of well-dispersed and uniform nanoclusters stabilized within a host matrix.

Feb 4th, 2019

Material systems used in 4D printing

4D printing allows a 3D printed structure to change its configuration or function with time in response to external stimuli such as temperature, light, water, pH, etc. The basic idea is to manipulate materials at nano and micro levels in order to produce, via 3D printing, materials that can modify their structures over time at the macro level. Based on 4D printing, 3D printed objects from nano- to macroscale can be fabricated as smart devices, metamaterials, and origami for various functional applications in prototype, aerospace, biomedicine, etc.

Jan 31st, 2019

Using a virus to make a better type of memory

virusIn a groundbreaking study, researchers have successfully developed a method that could lead to unprecedented advances in computer speed and efficiency. Through this study, researchers successfully developed a method to make a version of biological patterning for nonvolatile memory technology using the M13 bacteriophage - a virus. This possibility leads the way to the nanosecond storage and transfer delays needed to progress modern computing.

Nov 27th, 2018

Nanotribological printing - a novel 3D nanotechnology fabrication technique

nanostructureA novel nanoscale additive manufacturing technique termed Nanotribological Printing creates structures through tribomechanical and tribochemical surface interactions at the contact between a substrate and an atomic force microscope probe, where material pattern formation is driven by normal and shear contact stresses. This technique advances the field of nanomanufacturing by providing a versatile and easily accessible method for creating complex (multi-material) nanostructures, with high precision and uniquely superior mechanical properties.

Nov 13th, 2018

Nanoradiators allow precise optical manipulation of nanoparticles (w/video)

nanoradiatorResearchers have developed a new type of optical manipulation method to achieve versatile manipulation of objects with different sizes and types using optical heating. In this new technique, nanoparticles get trapped at temperature hot spots instead of electrical hot spots, which demonstrates a different working mechanism and approach from the traditional optical manipulation techniques. Due to this unique working principle, stable trapping of large metallic nanoparticles and miniscule quantum dots on single nanoantennas with extremely low optical power is achieved.

Oct 3rd, 2018

Ion generation and ion trapping in liquid crystals by means of nanomaterials

LCD-screensThe reorientation of elongated liquid crystalline molecules under the action of the applied electric field is a major physical effect enabling the use of liquid crystals in a variety of applications. To improve liquid crystal devices, new liquid crystal-forming materials are required. Recently, by merging liquid crystals and nanotechnology, a new, non-synthetic way to produce advanced liquid crystal materials was proposed. In short, it was achieved by dispersing various types of nanomaterials in liquid crystals.

Sep 4th, 2018