Recent progress in microelectromechanical systems,MEMS, is being applied to biomedical applications and has become a new field of research unto itself, known as BioMEMS. BioMEMS is an enabling technology for ever-greater functionality and cost reduction in smaller devices for improved medical diagnostics and therapies based upon the same technology used for computer chips. For example, BioMEMS technology can enhance catheter-based procedures by providing pressure sensing, imaging, drug delivery and tissue sampling, all via tiny biochips occupying <1 mm3 mounted on a catheter. Cell manipulation takes on new meaning as structures can be created on the same size scale as cells. On the nanoscale, BioMEMS can be used to engineer micro-/nanometer-sized features for tissue engineering, protein analyses, assays, and cell interrogation. Areas of application under investigation include miniature high-performance ultrasonic transducers, which integrate electronics and piezoelectric transducers on a single chip to create high-quality ultrasonic images; miniature drug delivery systems, capable of delivering high concentrations of drugs to local areas of tissue while maintaining low systemic concentrations; biochips for cell detection and manipulation; surface textures and systems to enhance tissue engineering of bioartificial tissues and organs; and the design and development of miniature in situ sensors for pressure, temperature strain and flow for minimally invasive and noninvasive surgical procedures and post-surgical follow-up.
My laboratory concentrates on the application of micro and nano technology to biomedical applications. The research focuses in two broad categories of the science of miniaturization. One, we investigate how to shrink high functioning large systems into small computer-like chips for implantation or minimally invasive procedures. Two, we take advantage of the physics unique to very small things to enable new capabilities and technologies for unmet medical needs. All work is focused on improving patient outcomes.
Shuvo Roy, Ph.D., Univ. of California, San Francisco
E. Murat Tuzcu, M.D., Cardiovascular Medicine, CCF
D. Geoffrey Vince, Ph.D., Volcano Corp.
Maciej Zborowski, Ph.D., Dept. of Biomed. Eng., CCF
Christian Zorman, Ph.D., Case Western Reserve Univ., Cleveland, OH
P. Nath, L.R. Moore, M. Zborowski, S. Roy, and A.J. Fleischman, “A novel method to obtain uniform magnetic field energy density gradient distribution using discrete pole pieces for a MEMS (micro-electro-mechanical-systems) based magnetic cell separator”, Journal of Applied Physics, Vol. 99, 2006, p. 08R905
C. Chandrana, N. Kharin, G. D. Vince, S. Roy, and A. J. Fleischman, "Demonstration of second-harmonic IVUS feasibility with focused broadband miniature transducers," Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on, vol. 57, pp. 1077-1085, 2010.
N. Ferrell, R. R. Desai, A. J. Fleischman, S. Roy, H. D. Humes, and W. H. Fissell, "A microfluidic bioreactor with integrated transepithelial electrical resistance (TEER) measurement electrodes for evaluation of renal epithelial cells," Biotechnology and Bioengineering, vol. 107, pp. 707-716, 2010.
C. Chandrana, J. Talman, T. Pan, S. Roy, and A. Fleischman, "Design and Analysis of MEMS Based PVDF Ultrasonic Transducers for Vascular Imaging," Sensors, vol. 10, pp. 8740-8750. 2010
Dr. Fleischman's laboratory concentrates development of microelectromechanical systems (MEMS) technology for biomedical applications - BioMEMS.
Recent progress in microelectromechanical systems – the microelectronics, microfabrication and micromachining technologies known collectively as MEMS - is being applied to biomedical research areas and has become a new field of research unto itself, known as BioMEMS. The technology is based upon the same technology that has been used to make computer chips ever more powerful and ever less expensive. MEMS technology has enabled low-cost, high-functionality devices in some commonly used areas, such as inexpensive printer cartridges for ink jet printing and chip-based accelerometers responsible for deployment of automotive airbags.