Nanoscience and nanotechnology

Researchers at MIT are developing an adhesive patch that can stick to a tumor site, either before or after surgery. The patch delivers a triple-combination of drug, gene, and photo (light-based) therapy via specially designed nanospheres and nanorods, shown here attacking a tumor cell.

Patch that delivers drug, gene, and light-based therapy to tumor sites shows promising results

In mice, device destroyed colorectal tumors and prevented remission after surgery.

July 25, 2016

In a new concept for battery cathodes, nanometer-scale particles made of lithium and oxygen compounds (depicted in red and white) are embedded in a sponge-like lattice (yellow) of cobalt oxide, which keeps them stable. The researchers propose that the material could be packaged in batteries that are very similar to conventional sealed batteries yet provide much more energy for their weight.

New lithium-oxygen battery greatly improves energy efficiency, longevity

New chemistry could overcome key drawbacks of lithium-air batteries.

July 25, 2016

The process of making a stack of parallel sheets of graphene starts with a chemical vapor deposition process (I) to make a graphene sheet with a polymer coating; these layers are then stacked (II), folded and cut (III) and stacked again and pressed, multiplying the number of layers. The team used a related method the team to produce scroll-shaped fibers.

Borrowing from pastry chefs, engineers create nanolayered composites

Method to stack hundreds of nanoscale layers could open new vistas in materials science.

July 21, 2016

Researchers at MIT and the University of California at San Diego have delivered artificial genetic circuits into bacteria, allowing the microbes to kill cancer cells in three different ways. Here, an image of a motherboard has been micropatterned using programmable probiotic bacteria. The bright lines are composed of dots made of bacteria. This technique was developed in the lab of MIT professor S...

Cancer-fighting bacteria

Engineers program E. coli to destroy tumor cells.

July 20, 2016

MIT postdoc Junwei Liu and collaborators are proposing a new random access memory (RAM) device architecture using ferroelectric tunneling RAM.

Charging up random access memory

Researchers demonstrate room-temperature ferroelectric states in ultra-thin films of tin and tellurium.

July 14, 2016

Emission spectra are a widely used method for identifying chemical compounds; the bright lines reveal the different frequencies of light that can be emitted by an atom. Here, a normal emission spectrum for an atom in a high-energy state (top) is compared to the emission from the same atom placed just a few nanometers (billionths of a meter) away from graphene that has been doped with charge carrie...

Study opens new realms of light-matter interaction

Some “forbidden” light emissions are in fact possible, could enable new sensors and light-emitting devices.

July 14, 2016

MIT researchers have developed a new way to image proteins and RNA inside neurons of intact brain tissue.

Seeing RNA at the nanoscale

Microscopy technique allows scientists to pinpoint RNA molecules in the brain.

July 4, 2016

This image shows microneedles, which are mostly used for the delivery of drugs and vaccines across the skin, and the silicone mold used to make them.

Seeing science

Workshop led by scientist and photographer Felice Frankel teaches researchers how to translate experiments into captivating images.

July 1, 2016

These fluorescent gels were synthesized by mixing a polymer (polyethylene glycol) and a ligand (terpyridine) with two lanthanides — europium and terbium — in varying ratios.

The promise of fluorescent polymer gels

Color-changing materials could be used to detect structural failure in energy-related equipment.

July 1, 2016

Duane Boning named LeBel Professor

A leader in the field of manufacturing and design has been appointed the Clarence J. LeBel Professor of Electrical Engineering.

June 30, 2016

MIT researchers have developed low-cost chemical sensors, made from chemically altered carbon nanotubes, that enable a smartphone or other wireless devices to detect trace amounts of toxic gases.

Wireless, wearable toxic-gas detector

Inexpensive sensors could be worn by soldiers to detect hazardous chemical agents.

June 30, 2016

This diagram depicts the way a mid-infrared laser (red cylinder, left) can send a beam through the atmosphere that generates filaments of ionized air molecules (multicolored beam, center, shown with magnified view). These filaments, which can be kilometers long, help to keep the beam concentrated enough to generate mid-infrared light in air (blue cloud, right) that can reveal detailed chemical com...

New mid-infrared laser system could detect atmospheric chemicals

Laser pulses produce glowing plasma filaments in open air, could enable long-distance monitoring.

June 28, 2016

Engineers at MIT have devised a method to bind two stretchy materials: gelatin-like polymer materials called hydrogels, and elastomers, which are impervious to water and can thus seal in the hydrogel’s water.

Tough new hydrogel hybrid doesn’t dry out

Water-based material could be used to make artificial skin, longer-lasting contact lenses.

June 27, 2016

A scanning electron micrograph shows a free-standing Bombyx mori silk nanofibril membrane.

Silk-based filtration material breaks barriers

Engineers find nanosized building blocks of silk hold the secrets to improved filtration membranes.

June 23, 2016

Researchers at MIT and Sandia National Laboratories have designed a device that is an array of 37 microfabricated lasers on a single chip. Its power requirements are relatively low because the radiation emitted by all of the lasers is “phase locked,” meaning that the troughs and crests of its waves are perfectly aligned.

New approach to microlasers

Technique for “phase locking” arrays of tiny lasers could lead to terahertz security scanners.

June 13, 2016

MIT News | Massachusetts Institute of Technology

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