Biomaterial for MEMS, Mu Chiao and J.-C. Chiao, Stanford Publishing, to be published in Sept. 2008.
Category: BOOKS
2007
"Microactuators for in vivo imaging and micromanipulators in minimally-invasive procedures," J.C. Chiao and Mu Chiao, Micro- and Nano-Manipulations for Biomedical Applications, edited by Ilie Talpasanu and T.C. Yih, Artech House, 2007.
Category: BOOKS
2007
Micromachining Technology for Micro-Optics and Nano-Optics, and Microfabrication Process Technology, edited by Mary-Ann Maher, Harold Stewart, J.-C. Chiao, Thomas Suleski, Eric Johnson and Gregory Nordin, SPIE Vol. 6462, 2007.
Category: BOOKS
2007
“Data Mining in a Wireless Neurostimulation System for Pain Reduction,” P. Rattakorn, C. Hagains, T. Ativanichayaphong, V. C.P. Chen, Y.B. Peng, S. B. Kim, J. Rosenberger, and J.-C. Chiao, Second Workshop on Artificial Intelligence and Data Mining, WAID 2007, Seattle, Washington, Nov. 3 2007.
Category: PAPERS
2007
“A Simple Wireless Batteryless Sensing Platform for Resistive and Capacitive Sensors,” T. Ativanichayaphong, J. Wang, W. Huang, S. Rao, and J.-C. Chiao¬, IEEE Sensors 2007 Conference, Atlanta, Georgia, Oct. 26-28 2007.
Category: PAPERS
Appointments
Duration
Rank
Department / School
College / Office
University / Company
2009-Present
Associate Professor
Internal Medicine
UT Southwestern Medical Center
2008-Present
Professor
Electrical Engineering
College of Engineering
University of Texas at Arlington
2002-Present
Professor
Biomedical Engineering Program
UT-Arlington and UT-Southwestern Medical Center
2002-2008
Associate Professor
Electrical Engineering
College of Engineering
UNIVERISTY OF TEXAS AT ARLINGTON
2001-2006
Adjunct Professor
Electrical Engineering
College of Engineering
UNIVERSITY OF HAWAII
1999-2002
Product Line Manager and Senior Technology Advisor
Marketing Department
Chorum Technologies
1997-2000
ASSISTANT PROFESSOR
ELECTRICAL ENGINEERING
COLLEGE OF ENGINEERING
UNIVERSITY OF HAWAII
1995-1997
RESEARCH SCIENTIST
BELL COMMUNICATIONS RESEARCH
Synergistic Activities
Professional Activities
Chair
SPIE Photonics Asia, MEMS/MOEMS Technologies and Applications Conference
SPIE Smart Materials, Nano/Micro-Smart Systems, Nano/Microtechnology symposium, Materials, Processes, Packaging and Systems Conference
SPIE International Symposium on Microelectronics, MEMS and Nanotechnology, Device and Process Technologies for Microelectronics, MEMS and Photonics Conference
SPIE International Symposium on Microtechnologies for the New Millennium, Smart Sensors, Actuators and MEMS Conference
Co-Chair
SPIE Photonics West, Micromachining And Microfabrication Process Technology Conference
Co-Founder
American Academy of Nanomedicine
TECHNICAL COMMITTEE
IEEE International Microwave Symposium RF MEMS Committee
Members of the University of Texas Arlington's electrical engineering department are set to begin using animals to test an RFID-based system that would replace the wired sensors currently employed to diagnose gastroesophageal acid reflux. The department has been working with the University of Texas Southwestern Medical Center for the past two years to develop a device that would allow doctors to monitor a patient's reflux condition wirelessly.
"Researchers Use RFID to Fight SIDS" in the RFID Journal.
Research began in summer 2006, when Cao and two colleagues, under the direction of UTA electrical engineering professor Jung-Chih Chiao, were carrying out a project on the evaluation of gas sensors. Cao discovered he could use such a sensor to detect exhaled air from a distance of about 50 centimeters.
DFW Star-Telegram Newspaper “New sensors designed to help prevent SIDS”
… The team found inexpensive sensors that could be used inside the bars of what Chiao described as a "smart crib." The wireless device would give off a signal that would allow nurses in a hospital to identify which baby was having trouble breathing, even in a room full of infants, Cao said. The team has not been able to test the device on babies, but in the lab it has been successful every time. Cao tested it by holding his breath as if he were a baby. The next step is to test it on a robot. Although other monitors are on the market, this device is unique because it detects carbon dioxide, Chiao said…..
DFW WBAP Radio AM820, Interview at UTSW about the GERD sensors.
An Easier Way to Measure Reflux Dallas (WBAP)- Engineers and doctors have come up with a device that may one day replace the catheter which is now used to tack acid reflux. The wireless chip uses radio frequency identification, or RFID, technology which is also used to track inventory for businesses. The chip can be implanted in the esophagus, where it sends electronic impulses about the kinds of liquids that move through. The chip is a joint venture between doctors at UT Southwestern Medical Center in Dallas and engineers at the University of Texas at Arlington.
A wireless implant that monitors esophageal reflux could produce more-accurate results for doctors and more comfort for patients than current technology. The device incorporates radio-frequency identification (RFID) and tests for electrical impulses that indicate acid and nonacid reflux. Information is transmitted to a sensor worn outside of the body.
"Wireless Systems Promise Better Medical Diagnoses" in Communication Direct
Wireless technology is proving its usefulness as a medical diagnostic tool in two different areas on both sides of the Atlantic.
In Texas, SouthwesternMedicalCenter doctors and University of Texas at Arlington engineers have developed an RFID monitoring system to track esophageal reflux. RFID is already used in thousands of retail stores to track inventory and in identification chips implanted in some pets. The researchers combined RFID with another emerging applied science called impedance monitoring, which tracks reflux through electrical impulses ...
Implantable Wireless Impedance Sensor for Gastroesophageal Reflux Disease
What is GERD?
More Information GERD stands for Gastroesophageal Reflux Disease, some just call it heartburn but there is something more
An Implantable Wireless Impedance Sensor Capable of Distinguishing Air, Water and Acid in Gastroesophageal Reflux
Research Home Page This work was presented at the 2007 Digestive Disease Week Meeting, Washington DC, May 19-24 2007.
Introduction: Esophageal impedance monitoring is a new technique to detect episodes of gastroesophageal reflux that are both acidic and non-acidic in nature. Currently, the impedance electrodes are placed in a catheter to be inserted transnasally into the patient's esophagus. The electrodes are connected to an external electrical module for power supply and data acquisition. The system configuration is bulky and very uncomfortable for patients during the study (more than 24 hours) and may limit the clinical utility of the monitoring technique. A miniature wireless device that does not require tethered connection is thus preferred for esophageal reflux monitoring.
Methods: Our approach is based on inductive links between two coils. An external coil forms a resonance circuit with an RF (radio frequency) source worn by the patient. A small coil with interdigitated electrodes is implantable in the esophagus to sense the impedance changes. The implant is fabricated on a flexible substrate to attach onto the esophagus wall. The electrode impedance changes in the esophagus, caused by fluid passing, vary the mutual inductances between two coils and can be detected at the external coil outside the patient's body. The signal can be detected by either amplitude or frequency modulation methods. The implant does not require a battery.
Results: The fabricated implantable device has a dimension of 2×2cm2. In vitro experiments were done at 3cm away from the device. The detected signals from amplitude modulation at 1.02 MHz were 11.36 mV, 15.04 mV and 29.26 mV when air, water and simulated stomach acid were on the electrodes, respectively. The measured signal at 850 kHz for air and acid were 8.349 mV and 47.66 mV, respectively. Using frequency modulation, the signal changed from 263 kHz for air to 68.5 kHz for water and 40.5 kHz for acid. The frequency approach is more immune to misalignment of coils and motion artifacts of the patient.
Conclusions: An implantable wireless device to detect impedance changes associated with gastroesophageal reflux was fabricated. The device is capable of distinguishing the reflux of nonacidic and acidic materials. With the wireless approach without the need for a battery, the device can be implanted in patient's esophagus for a longer time with more comfort.
Publicity: Press Release, News, Clips and Presentations
2008/03/01 PromotionUTA promotion in the World Best Technology WBT Showcase meeting Page image 2008/02/06 TV Columbia, SC, WIS TV, Channel 10 Count ON WIS News reported our GERD sensors "Health Alert: Treating acid reflux disease", Website 2008/01/20 TVTexas, Dallas Fort Worth, WFAA TV, ABC, Channel 8 Evening News reported our GERD sensors.
2008/01/24 TV Kentucky, Louisville, WAVE TV, NBC, Channel 3 Evening News reported our GERD sensors "Wireless technology helping diagnose stomach disorder", Website 2008/01/11 TV North Carolina, Charlotte, WSOC TV, ABC, Channel 9 Eyewitness News, (also WAXN Channel 64), reported our GERD sensors. "Gastroesophageal Reflux", Website 2007 TV Voice of America TV and webcast interview (interviewed on Oct. 23). Showtime to be determined.
2007 Promotion MedStar Television about our GERD sensors featured Thermpon, Dr. Tang, and Dr. Tibbals. Video clip (2 minute TV clip, 10Mb size) 2007/12/31 TV Illinois, WHOI TV, ABC, Channel 19 Evening News reported our GERD sensor: "Wireless Reflux Chip", Website 2007/12/26 TV Wisconsin, WXOW TV, ABC, Channel 19 Evening News reported our GERD sensors "Wireless technology helping diagnose stomach disorder", Website 2007/12/21 TV California, Los Angeles, KNBC, NBC Channel 4 Evening News reported our GERD sensor. Website 2007/11/05 Website UTA front page Mavericks Dr. J. C. Chiao Front page image UTA Mavericks feature profile Dr. J. C. Chiao WebsitePdf format 2007/11/02 Magazine UT Arlington 2007 Research Magazine.
"Sensing a solution" Websitepdf format "Research passes media's acid test" Websitepdf format "Forwards: Measuring research growth" Websitepdf format 2007/10/07 Press release College of Engineering Press Release about the GERD sensors and Thermpon. COE Website 2007/10/01 Magazine Chinese Journal of Medical Instrumentation, "Doctor and Engineer invent a new diagnostic method for GERD. ", p. 387, Vol. 31, No.5, 2007. Scanned image 2007/09/10 News CommunicationsDirect, Special report: "Wireless Systems Promise Better Medical Diagnoses". Website 2007/08/01 Magazine Medical Device & Diagnostic Industry MD&MI Magazine article about the GERD sensors Website
2007/07/08 News RFIDNews.org about Dr. Chiao's presentation WebsitePrint
2007/07/07 News NewsWireToday (London) about Dr. Chiao's presentationWebsitePrint
Important Disclaimer: The responsibility for the accuracy of the information contained on these pages lies with the authors and user providing such information.
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