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Professor Greer Named Young Global Leader by the World Economic Forum


Julia R. Greer, Professor of Materials Science and Mechanics, has been selected as a 2014 Young Global Leader by the World Economic Forum. Each year the selection Committee, which is headed by Her Majesty Queen Rania Al Abdullah of the Hashemite Kingdom of Jordan, identifies and recognizes the most distinguished leaders under the age of 40, nominated from around the world. Candidates are selected based on their proven track record of professional accomplishments, breadth of their expertise, commitment to society and their ability to overcome adversity. [List of 2014 Honourees]

Tags: APhMS honors MedE Julia Greer

Bending the Light with a Tiny Chip


Ali Hajimiri, Thomas G. Myers Professor of Electrical Engineering, and colleagues have developed a new light-bending silicon chip that acts as a lens-free projector--and could one day end up in your cell phone. They were able to bypass traditional optics by manipulating the coherence of light—a property that allows the researchers to "bend" the light waves on the surface of the chip without lenses or the use of any mechanical movement. [Caltech Release]

Tags: EE energy research highlights MedE Ali Hajimiri

From Lab-on-a-Chip to Lab-in-the-Body


Axel Scherer, Bernard Neches Professor of Electrical Engineering, Applied Physics and Physics, will be giving the next Caltech Earnest C. Watson Lecture on November 6, 2013 at 8pm. His lecture is entitled From Lab-on-a-Chip to Lab-in-the-Body and will focus on the role of nanotechnology in the miniaturization of medical diagnostic tools. [Caltech Release] [ENGenious Article]

Tags: APhMS EE MedE health Axel Scherer

Made-to-Order Materials


Julia R. Greer, Professor of Materials Science and Mechanics, and colleagues have created nanostructured, hollow ceramic scaffolds, and have found that the small building blocks, or unit cells, display remarkable strength and resistance to failure despite being more than 85 percent air. The general fabrication technique the researchers have developed could be used to produce lightweight, mechanically robust small-scale components such as batteries, interfaces, catalysts, and implantable biomedical devices. [Caltech Release]

Tags: APhMS energy research highlights MedE health MCE Julia Greer

Pushing Microscopy Beyond Standard Limits


Changhuei Yang, Professor of Electrical Engineering and Bioengineering, and colleagues have shown how to make cost-effective, ultra-high-performance microscopes. The final images produced by their new system contain 100 times more information than those produced by conventional microscope platforms. And building upon a conventional microscope, their new system costs only about $200 to implement. This new method could have wide applications not only in digital pathology but also in everything from hematology to wafer inspection to forensic photography. [Caltech Release]

Tags: EE Changhuei Yang MedE health research highlight

Counting White Blood Cells at Home


Yu-Chong Tai, Professor of Electrical Engineering and Mechanical Engineering, and colleagues have developed a portable device to count white blood cells that needs less than a pinprick's worth of blood and takes just minutes to run. The heart of the new device is a 50-micrometer-long transparent channel made out of a silicone material with a cross section of only 32 micrometers by 28 micrometers—small enough to ensure that only one white blood cell at a time can flow through the detection region. The stained blood sample flows through this microfluidic channel to the detection region, where it is illuminated with a laser, causing it to fluoresce. [Caltech Release]

Tags: EE research highlights MedE health Yu-Chong Tai MCE

International Scholarship Focused on Engineering Global Challenges Announced


The Caltech Division of Engineering and Applied Science and the USC Viterbi School of Engineering have established a new scholarship program, named after outgoing National Academy of Engineering (NAE) president Charles M. Vest at their institutions, along with six other universities around the country. "The Vest Scholarship is a superb opportunity for high-powered international graduate students to work with faculty and researchers who are international leaders in their engineering disciplines," says Chair Ares Rosakis. "At Caltech, due to its small size and strong interdisciplinary philosophy, the students will have the opportunity to work closely with not only these international leaders in engineering research, but also with their collaborators in all areas of science and technology." [Caltech Release] [Application Information]


Creating Indestructible Self-Healing Circuits


Ali Hajimiri, Thomas G. Myers Professor of Electrical Engineering, and colleagues have built electronic chips that repair themselves. The team has demonstrated this self-healing capability in tiny power amplifiers. The amplifiers are so small, in fact, that 76 of the chips—including everything they need to self-heal—could fit on a single penny. In perhaps the most dramatic of their experiments, the team destroyed various parts of their chips by zapping them multiple times with a high-power laser, and then observed as the chips automatically developed a work-around in less than a second. [Caltech Release]

Tags: EE energy MedE Ali Hajimiri

Disease Diagnosis at the Touch of a Button


Axel Scherer, Bernard Neches Professor of Electrical Engineering, Applied Physics and Physics, and colleagues have built a new version of a polymerase chain reaction (PCR) device, which generates many copies of a pathogenic nucleic acid, allowing the infection to be detected. The device is the result of nearly 10 years of research at Caltech. In 2004, Scherer, a leader in the field of microfluidics, and George Maltezos were investigating how to manipulate biological fluids on a chip. While this was an interesting engineering problem, Maltezos began to wonder how he could apply the microfluidic techniques that he was perfecting to real-world problems. Then the H5N1 bird flu pandemic erupted in Asia, and the team had their real-world problem. [Caltech Release]

Tags: APhMS EE MedE health Axel Scherer George Maltezos

A New Tool for Secret Agents—And the Rest of Us


Ali Hajimiri, Thomas G. Myers Professor of Electrical Engineering, and Postdoctoral Scholar in Electrical Engineering, Kaushik Sengupta, have developed tiny inexpensive silicon microchips that generate terahertz (THz) waves that fall into a largely untapped region of the electromagnetic spectrum and that can penetrate a host of materials without the ionizing damage of X-rays. When incorporated into handheld devices, the new microchips could enable a broad range of applications in fields ranging from homeland security to wireless communications to health care, and even touchless gaming. "This extraordinary level of creativity, which has enabled imaging in the terahertz frequency range, is very much in line with Caltech's long tradition of innovation in the area of CMOS technology," says Chair Ares Rosakis. "Caltech engineers, like Ali Hajimiri, truly work in an interdisciplinary way to push the boundaries of what is possible." [Caltech Release]

Tags: EE energy research highlights MedE health Ali Hajimiri Kaushik Sengupta