Nanotechnology, News, Physics

Researchers create a new material from 1 billion tiny magnets which mimics ice, water and steam

Image credits: Leydermann et al.

Scientists working at the Paul Scherrer Institute (PSI) have created a very specific type of material from over 1 billion magnets placed in a specific configuration. Astonishingly, its magnetic properties now change with temperature, just like water can be liquid, solid and gaseous based on temperature.

Health & Medicine, Nanotechnology, News, Robotics, Science

University of California 3D printed fish are the most advanced microbots we built to date

3-D-printed microfish contain functional nanoparticles that enable them to be self-propelled, chemically powered and magnetically steered. The microfish are also capable of sensing  and removing toxins.
Image credits: J. Warner, UC San Diego Jacobs School of Engineering.

Nanoengineers from the San Diego University of California used innovative, self-developed 3D printing methods to create multipurpose, fish-shaped microbots – that they call microfish – which can swim around efficiently through liquids, powered by hydrogen peroxide and are magnetically controlled.

Health & Medicine, Nanotechnology, News

New nanotechnology will be able to target and destroy blood clots

Image via The Latest News.

A research group has come up with an innovative way of dealing with blood clots through nanotechnology. This technology has the potential to save many lives every year, as blood clots are often associated with life-threatening events.

Nanotechnology, News, Physics

This is the first white light laser. It might change video display and lighting dramatically

Growth procedure of multi-segment heterostructure nanosheets. a, Schematic of the CVD set-up with a temperature gradient of 66 °C cm–1 in the region used for positioning the substrate (see Supplementary Section 5 for more details). b, Illustration of the growth procedure. Samples are grown starting at position R3, then at positions R1, R2 and finally back to R3, with corresponding temperatures labelled T1, T2 and T3. The associated product samples after these steps are labelled P3, P31, P312 and P3123, respectively, where the numbers following ‘P’ represent the growth sequence at various locations. For example, P312 represents a product grown first at R3, followed by growths at R1 and then at R2. c, Photoluminescence images of individual structures after the corresponding growth sequences. Note that the images were taken after the structures were transferred onto a glass substrate from their as-grown ones using a contact printing method. Inset in rightmost panel a multi-segment nanowire structure resulting from the P123 growth sequence. Scale bars, 15 μm. d, Optical images of the samples under ambient lighting. Scale bar, 1 cm. e, Photoluminescence spectra of the samples shown in c,d. Image: Nature

In what can only be heralded as a major breakthrough, a group at Arizona State University reports the demonstration of the first ever white laser – a laser that emits light over the full spectrum of visible colors. Up until now, lasers were designed to emit a distinct spectrum, either red, green, blue and so on. Combining multiple colors has always proved challenging and previous attempts had been slumped with shortcoming. This latest version seems to work wonderfully. If this technology can and will be scaled commercially, it could radically transform the industry. Its contrast and lighting capabilities, watt per watt, are well over LEDs and, moreover, it could help devise a new generation of Wi-Fi, called Li-Fi, which works on laser light and is 10 times faster.

Health & Medicine, Nanotechnology, News

Scientists find a way to transform cells into tiny lasers

An optical fibre is shown activating tiny lasers created within pig skin cells. Image credits: Matjaž Humar/Seok Hyun Yun

Scientists have created a mixture of oil and fluorescent dyes that can be safely added to human cells – the dye then gets activated by short pulses of light and starts behaving like a laser, communicating the tissue’s position to doctors. The technology could add new ways for light to be used in diagnosis and treatment medicine. The system was devised

Materials, Nanotechnology, News

Scientists predict the existence of a liquid analogue of graphene

Atomically thin two-dimensional liquid. Image credit: Pekka Koskinen.

By now, we’ve all hopefully at least heard of graphene, the new wonder material that promises to revolutionize a swarm of applications. But now, a team of researchers from Finland have predicted the existence of atomically thin, free-standing 2D liquid phase – a liquid analogue of graphene.

Mind & Brain, Nanotechnology, News

Scientists create neural lace that fuses with your brain

The rolled electronic mesh is injected through a glass needle into a water-based solution. (Lieber Research Group, Harvard University)

In a world where in only a few decades we moved from clunky phones to wireless satellite-connected devices that allow you to be anywhere and do anything on the internet, it seems only normal that scientists will take it to the next level – to your brain. Already tested on mice, this fine mesh fits inside a syringe and unfurls on the brain to monitor its activity.

Inventions, Nanotechnology, News

Gold Nanospirals Might Protect Your Identity

World's smallest spirals could guard against identity theft | Research News @ Vanderbilt

Microscopic swirls from gold might be the key to protect your cash and credit cards in the future, making identity theft virtually impossible. Researchers at Vanderbilt University developed the “Archimedes spirals” and report that they produce four times more blue light per unit volume than currently existing frequency amplifiers; they could be printed on currency, ID cards and pretty much everything that’s important to prevent counterfeiting.

Health & Medicine, Inventions, Nanotechnology, News

Nanotech toothbrush means you never need toothpaste again


It’s common sense – in order to brush your teeth, you need water, a toothbrush, and toothpaste. Well, a company from Japan wants to change all that: they’ve developed a nanotechnology toothbrush that basically eliminates the need for toothpaste.

Nanotechnology, News, Technology

Artificial leaf breakthrough makes solar fuels one step closer


A team at Caltech has devised a new film coating that facilitates catalysis and electron transfer in a solar powered system that splits water into hydrogen and oxygen, which can be used as fuels. Such a system is also called an artificial leaf or solar-fuel generator because in many ways it mimics the process which plants use to convert sunlight and CO2 into oxygen and fuel (sugars, carbohydrates). The researchers make note, however, that they’re still a long way from making it commercial viable, but these sort of updates are inspiring.