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Researchers Create ‘Soft Robotic’ Devices Using Water-Based Gels

By Guest PostAugust 7, 2013Scienceaqueous environments, biomedical applications, daniel morales, etienne palleau, hydrogels are elastic, invista, michael dickey, north Carolina, orlin velev, patterns of ions, petals, polymer molecules, soft robotic devices, state university, technique, theory, three dimensions, water based gels

Researchers from North Carolina State University have developed a new technique for creating devices out of a water-based hydrogel material that can be patterned, folded and used to manipulate objects. The technique holds promise for use in “soft robotics” and biomedical applications.

“This work brings us one step closer to developing new soft robotics technologies that mimic biological systems and can work in aqueous environments,” says Dr. Michael Dickey, an assistant professor of chemical and biomolecular engineering at NC State and co-author of a paper describing the work. (more…)

Researchers Build 3-D Structures Out of Liquid Metal

By Guest PostAugust 4, 2013Science3d structures, biomolecular engineering, collin ladd, component, droplets, gallium, indium, john muth, ju hee so, liquid metal, liquid metal alloy, michael dickey, north Carolina, polymer template, printing technology, room temperature, state university, substrate, three dimensions

Researchers from North Carolina State University have developed three-dimensional (3-D) printing technology and techniques to create free-standing structures made of liquid metal at room temperature.

“It’s difficult to create structures out of liquids, because liquids want to bead up. But we’ve found that a liquid metal alloy of gallium and indium reacts to the oxygen in the air at room temperature to form a ‘skin’ that allows the liquid metal structures to retain their shapes,” says Dr. Michael Dickey, an assistant professor of chemical and biomolecular engineering at NC State and co-author of a paper describing the work. (more…)

3-D Mapping of Isaac Water Levels

By Guest PostSeptember 1, 2012Environment, Science360 degree, 3d mapping, 3d model, alabama, athena clark, bounce back, data points, flood hazard, flood inundation, geological survey, gulf coast, hurricane isaac, isaac, louisiana, map, marcia mcnutt, Mississippi, objects, point clouds, Science, t lidar, terrestrial lidar, three dimensions, tls, toby minear, topographic data, urban flooding, US, view, water level

A new technology is being deployed by U.S. Geological Survey scientists this weekend to map urban flooding caused by Hurricane Isaac. Called “terrestrial lidar,” or “T-lidar”, this new capability will enable scientists to collect highly detailed information in select population areas in Louisiana, Mississippi, and Alabama where the hurricane had the greatest impact.

The portable instrument allows scientists to quickly generate 3-D maps of buildings, dams, levees and other structures, and can show areas of storm damage as well. In a four-to-five minute scan, the instrument collects millions of topographic data points in a full 360-degree view to quickly produce highly accurate topographic information and can map areas up to two-thirds of a mile away. (more…)

New Twist on Ancient Math Problem Could Improve Medicine, Microelectronics

By Guest PostMay 15, 2012Scienceancient math problem, carolyn phillips, filling problem, hidden facet, medicine, microelectronics, microprocessor, Nanotechnology, pentagon, protein, radiation beam, sanskrit manuscript, sharon glotzer, silicon chip, solution, starfish, three dimensions, traps, treating tumor, two dimensions, university of connecticut, university of michigan

ANN ARBOR, Mich.— A hidden facet of a math problem that goes back to timeworn Sanskrit manuscripts has just been exposed by nanotechnology researchers at the University of Michigan and the University of Connecticut.

It turns out we’ve been missing a version of the famous “packing problem,” and its new guise could have implications for cancer treatment, secure wireless networks, microelectronics and demolitions, the researchers say.

Called the “filling problem,” it seeks the best way to cover the inside of an object with a particular shape, such as filling a triangle with discs of varying sizes. Unlike the traditional packing problem, the discs can overlap. It also differs from the “covering problem” because the discs can’t extend beyond the triangle’s boundaries. (more…)

New Technique Lets Scientists Peer Within Nanoparticles, See Atomic Structure in 3-D

By Guest PostMarch 23, 2012Science3 d, atom, atomic scale resolution, atomic structure, chien chun chen, chris regan, chun zhu, conundrum, electronic property, gold atom, gold nanoparticle, gold particle, high energy electron, honeycomb, image, jianwei john miao, mary scott, material, matthew mecklenburg, microscope, nanomaterial, nanometer, nanostructure, peter ercius, radiation, rui xu, three dimensions, ucla, ulrich dahmen, x ray crystallography

UCLA researchers are now able to peer deep within the world’s tiniest structures to create three-dimensional images of individual atoms and their positions. Their research, published March 22 in the journal Nature, presents a new method for directly measuring the atomic structure of nanomaterials.

“This is the first experiment where we can directly see local structures in three dimensions at atomic-scale resolution — that’s never been done before,” said Jianwei (John) Miao, a professor of physics and astronomy and a researcher with the California NanoSystems Institute (CNSI) at UCLA. (more…)

Tag Archives: three dimensions

Researchers Create ‘Soft Robotic’ Devices Using Water-Based Gels

Researchers Build 3-D Structures Out of Liquid Metal

3-D Mapping of Isaac Water Levels

New Twist on Ancient Math Problem Could Improve Medicine, Microelectronics

New Technique Lets Scientists Peer Within Nanoparticles, See Atomic Structure in 3-D