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Cell-phone Medical Devices

08-08-11

Mani Chandy, Simon Ramo Professor and Professor of Computer Science; Deputy Chair for Education, and Julian J. Bunn, Principal Computational Scientist at CACR, are working with a group of Summer Undergraduate Research Fellowships (SURF) in CMS, EE, and MCE to building a collection of medical devices that can be connected to a cell phone. "We want to exploit cell-phone technology and the Internet to provide inexpensive health-care tests for the poor in remote rural villages," says Chandy. [Caltech Feature]

Tags: EE research highlights health MCE CMS Kanianthra Chandy Julian Bunn SURF

Engineers Solve Longstanding Problem in Photonic Chip Technology

08-04-11

Liang Feng, a Postdoctoral Scholar in Electrical Engineering who works with Professor Axel Scherer, has designed a new type of optical waveguide - a 0.8-micron-wide silicon device. The waveguide allows light to go in one direction but changes the mode of the light when it travels in the opposite direction. This new technique to isolate light signals on a silicon chip, solves a longstanding problem in engineering photonic chips. [Caltech Press Release]

Tags: APhMS EE energy research highlights Liang Feng Axel Scherer postdocs

First Artificial Neural Network Created Out of DNA

07-21-11

Lulu Qian, Senior Postdoctoral Scholar in Bioengineering; Erik Winfree, Professor of Computer Science, Computation and Neural Systems, and Bioengineering; and Jehoshua (Shuki) Bruck, Gordon and Betty Moore Professor of Computation and Neural Systems and Electrical Engineering, are the first to have made an artificial neural network out of DNA, creating a circuit of interacting molecules that can recall memories based on incomplete patterns, just as a brain can. [Caltech Press Release]

Tags: EE research highlights Jehoshua Bruck health CMS Erik Winfree Lulu Qian postdocs

Edward Keehr Wins Charles Wilts Prize

06-23-11

Edward A. Keehr, advised by Ali Hajimiri, Thomas G. Myers Professor of Electrical Engineering, is the winner of this year's Charles Wilts Prize. The Charles Wilts Prize is awarded every year to a graduate student in Electrical Engineering for outstanding independent research. 

Tags: EE honors Ali Hajimiri Wilts Prize Edward Keehr

Sander Weinreb Awarded the Karl G. Jansky Lectureship

06-16-11

Dr. Sander Weinreb, Faculty Associate in Electrical Engineering, has been awarded the Karl G. Jansky Lectureship. This is an honor established to recognize outstanding contributions to the advancement of radio astronomy. Weinreb’s development of the first autocorrelation spectrometer and the detection of the first interstellar molecule at radio wavelengths revolutionized astronomy. He has been a leader in the technological development of cm and mm astronomy throughout his career.

Tags: EE honors energy research highlights Sander Weinreb

Winners of the 2011 Demetriades - Tsafka - Kokkalis Prizes Announced

06-07-11

The student winners of the 2011 Demetriades - Tsafka - Kokkalis Prizes were announced at a special luncheon with the Demetriades - Tsafka – Kokkalis family. Fiona Chandra received the prize in Biotechnology for her work on glycolytic oscillations with John Doyle. Shelby Hutchens received the prize in Nanotechnology for her work on carbon nanotube foams with Julia Greer. Vivian Ferry recieved the prize in Entrepreneurship for her work on plasmonic photovoltaics with Harry Atwater. William Chueh received the prize in Environmentally Benign Renewable Energy Sources for his work on solar-driven thermochemical fuel production with Sossina Haile. Matthew Faulkner was the recipient of the newest Demetriades - Tsafka – Kokkalis prize in the area of Seismo-Engineering, Prediction, and Protection for his work with Andreas Krause on using accelerometers in cellphones for detecting shaking from earthquakes.

Tags: honors Harry Atwater Julia Greer Andreas Krause Sossina Haile John Doyle Demetriades - Tsafka - Kokkalis

Largest Biochemical Circuit Built Out of Small Synthetic DNA Molecules

06-02-11

Lulu Qian, Senior Postdoctoral Scholar in Bioengineering, and colleagues including Erik Winfree, Professor of Computer Science, Computation and Neural Systems, and Bioengineering, have built the most complex biochemical circuit ever created from scratch made with DNA-based devices in a test tube that are analogous to the electronic transistors on a computer chip."We're trying to borrow the ideas that have had huge success in the electronic world, such as abstract representations of computing operations, programming languages, and compilers, and apply them to the biomolecular world," says Dr. Qian. [Caltech Press Release]

Tags: EE research highlights health CMS Erik Winfree Lulu Qian postdocs

Stimulating Electrode Array Assists Paraplegic Man to Stand and Move Legs Voluntarily

05-20-11

Joel W. Burdick, Professor of Mechanical Engineering and Bioengineering, and colleagues including Yu-Chong Tai, Professor of Electrical Engineering and Mechanical Engineering, have used a stimulating electrode array to assist a paralyzed man to stand, step on a treadmill with assistance, and, over time, to regain voluntary movements of his limbs. Using a combination of experimentation, computational models of the array and spinal cord, and machine-learning algorithms, Professor Burdick and his colleagues are now trying to optimize the stimulation pattern to achieve the best effects, and to improve the design of the electrode array. Further advances in the technology should lead to better control of the stepping and standing processes. [Caltech Press Release]

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

Undergraduate Receives Fulbright to Study Biophysics of RNA in Denmark

05-13-11

Pradeep Ramesh, a senior undergraduate student working with Rob Phillips, Professor of Biophysics and Biology, has received a Fulbright fellowship to work in an experimental Biophysics lab at the Niels Bohr Institute in Copenhagen under the guidance of Professor Lene B. Oddershede. He plans to study the collision and queuing of RNA polymerases during transcription using optical tweezers and atomic-force microscopes.  

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Tags: honors Pradeep Ramesh Rob Phillips

Professor Greer Receives DOE Early Career Research Award

05-06-11

Julia R. Greer, Assistant Professor of Materials Science and Mechanics, has received a five-year award from the Department of Energy Office of Science's Early Career Research Program for her proposal entitled “Investigation of radiation damage tolerance in interface‐containing metallic nano structures”. These research awards provide incentives for exceptional researchers, during the crucial early career years, to focus on research areas that are a high priority for the Department of Energy and the Nation. [Caltech Feature]

Tags: APhMS honors MCE Julia Greer DOE Career DOE