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Laser-sonic Scanner Aims to Replace Mammograms for Finding Breast Cancer

06-18-18

A laser-sonic scanner, which uses photoacoustic computed tomography (PACT) developed by Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, can find tumors in as little as 15 seconds by shining pulses of light into the breast. The laser-sonic scanner provides a safer way for finding breast cancer compared to mammogram technology. Mammograms expose patients to X-ray radiation and requires their breasts to be painfully pressed between plates. Many women avoid having their mammograms taken as often as they should because of the discomfort involved. PACT can provide a clear view of structures as small as a quarter of a millimeter at a depth of 4 centimeters. Mammograms cannot provide soft-tissue contrast with the level of detail in PACT images. The PACT scan is quick, and a clearer image can be developed. [Caltech story]

Tags: research highlights MedE Lihong Wang

Butterfly Wings Inspire Light-Manipulating Surface for Medical Implants

04-30-18

 

Professor Hyuck Choo along with postdoctoral researchers Radwanul Hasan Siddique, and graduate student Vinayak Narasimhan working in the Choo lab have developed a synthetic analogue for eye implants that makes them more effective and longer-lasting. The work was inspired by tiny nanostructures on transparent butterfly wings. The eye implant is shaped like a tiny drum, the width of a few strands of hair. When inserted into an eye, its surface flexes with increasing eye pressure, narrowing the depth of the cavity inside the drum. That depth can be measured by a handheld reader, giving a direct measurement of how much pressure the implant is under. [Caltech story]

Tags: EE research highlights MedE Hyuck Choo Radwanul Hasan Siddique Vinayak Narasimhan

Glowing Contact Lens Could Prevent A Leading Cause of Blindness

04-23-18

Hundreds of millions of people suffer from diabetes worldwide, putting them at risk for a creeping blindness, or diabetic retinopathy. Existing treatments, though effective, are painful and invasive, involving lasers and injections into the eyeball. Graduate student, Colin Cook working in Professor Yu-Chong Tai’s laboratory has invented a contact lens that when worn during sleep interrupts the process that destroys cells of the retina. He hopes his contact lenses will offer a solution that patients will be more willing to try because the effort involved is minimal, as are the side effects. [Caltech story]

Tags: research highlights MedE Yu-Chong Tai Colin Cook

Third Place At TigerLaunch

04-18-18

MedE graduate student, Colin A Cook, has won third place at the 2017-2018 TigerLaunch Finals for his pitch on a phototherapy contact lens he has been developing with his advisor Professor Yu-Chong Tai. TigerLaunch is a national entrepreneurship competition, dedicated to building student founder networks. It is the largest student-run competition of its kind with events in Chicago, NYC, Paris, Seattle, and Princeton.  It had over 300 applicants in 2017 and over $30,000 in prizes.  Colin learned about the competition and was encouraged to apply while taking Professor Ken Pickar's class E/ME 103: Management of Technology. [ENGenious feature on Colin Cook]

Tags: honors MedE Yu-Chong Tai Ken Pickar Colin Cook

Gift Enables Transformative Advances in Health Care

03-01-18

The Heritage Medical Research Institute (HMRI), a nonprofit founded by physician and Caltech trustee Richard Merkin, has extended its partnership with Caltech for a minimum of three more years. “I firmly believe that one person can change the world. Imagine what nine, focused HMRI investigators can do for understanding, diagnosing, and treating diseases,” says Merkin, who has served on the Caltech Board of Trustees since 2007. Caltech’s current HMRI investigators include EAS Professors Hyuck Choo, and Azita Emami. [Breakthrough story]

Tags: EE MedE Hyuck Choo Azita Emami Richard Merkin

Professor Wang Receives Biophotonics Award

02-28-18

Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, has received the 2018 Michael S. Feld Biophotonics Award from the Optical Society (OSA) for “invention of the world’s fastest two-dimensional receive-only camera; enabling real-time imaging of the fastest phenomena on earth.” The award recognizes individuals for their innovative and influential contributions to the field of biophotonics, regardless of their career stage. [OSA release]

Tags: EE honors MedE Lihong Wang

Engineered Metasurfaces Replace Adhesive Tape in Specialized Microscope

02-28-18

The latest advance in a new type of optics aimed at improving microscopy started with a game of tennis three years ago between Mooseok Jang a graduate of Professor Changhuei Yang's lab and Yu Horie working with Professor Andrei Faraon. "The hope is that our work will prompt further interest in this area of optics and make this type of microscopy and its advantages feasible for practical, everyday use—not just as a proof of concept," says Josh Brake, a graduate student in Yang's lab who continues to work on the project with Faraon and Yang. [Caltech story]

Tags: EE research highlights Changhuei Yang MedE alumni Andrei Faraon Mooseok Jang APh Yu Horie Josh Brake

New Process Allows 3-D Printing of Nanoscale Metal Structures

02-09-18

Professor Julia Greer and graduate student Andrey Vyatskikh have created complex nanoscale metal structures using 3-D printing. The process, once scaled up, could be used in a wide variety of applications and opens the door to the creation of a new class of materials with unusual properties that are based on their internal structure. [Caltech story]

Tags: research highlights MedE MCE Julia Greer MatSci Andrey Vyatskikh

Professor Wang Elected to the National Academy of Engineering

02-07-18

Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, has been elected to the National Academy of Engineering (NAE). Professor Wang was elected for "inventions in photoacoustic microscopy enabling functional, metabolic, and molecular imaging in vivo." Election to the National Academy of Engineering is among the highest professional distinctions accorded to an engineer. Academy membership honors those who have made outstanding contributions to "engineering research, practice, or education, including, where appropriate, significant contributions to the engineering literature," and to the "pioneering of new and developing fields of technology, making major advancements in traditional fields of engineering, or developing/implementing innovative approaches to engineering education." [Caltech story] [NAE release]

Tags: EE honors MedE National Academy of Engineering Lihong Wang

Engineers Create Stable Plasma Ring in Open Air

11-13-17

For the first time, Professor Morteza Gharib and colleagues have created a stable ring of plasma in open air using just a stream of water and a crystal plate. The team fired the water jet at surfaces of different textures and found that the smoother the surface, the clearer the structure of the plasma ring. The ring is stable, and as long as the water continues to flow, the ring maintains its shape and size. [Caltech story]

Tags: research highlights GALCIT MedE Morteza Gharib