Access to the Facility
Individuals can access the facility by following the procedures outlined in the "How Do I Become a User and How Much Does It Cost?" (pdf) document. You will need to read the the "Lab Safety Manual" (pdf) and sign "Certification Form" (pdf).
Equipment Operating Procedures
uFab Lab Kiosk: prepared by La Vida Cooper (2002) supported by a Kenan Grant. Please send comments to the lab manager Mr. Huy Vo.
Faculty and Research
Nitish Thakor (Biomedical Engineering and Whitaker Institute)
Prof.
Thakor is interested in developing micro and nanotechnologies for medical
sensors and instrumentation. His primary medical focus is developing the
technology for neuroscience research and studying basic brain diseases and
disorders using micro and nanotechnologies. Under the sponsorship of the
National Institute of Neurological Disorder and Stroke, he is currently
developing a carbon microsensor and a related carbon nanosensor for detection of
neurotransmitters from brain cells and tissue. The sensor is interfaced to a
custom designed very large scale integrated (VLSI) circuit potentiostat chip to
provide the interface and digital conversion. His laboratory has also developed
a microelectrode mechanisms for recording from brain slices and brain tissue. A
novel recording technique that will allow simultaneous electrical and chemical
activity from brain as well as optical imaging is under development under a
grant from the National Institute of Mental Health. Finally, a new initiative
has been undertaken to develop electronic interfaces to neurons and neural
networks. The idea is to develop programmable neural networks so that the
neurons can be patterned in a desirable fashion and with a programmed interface
for recording and stimulation. A new technology has been proposed to genetically
engineer the neurons and the neural network to achieve desirable gene activated
function, such as synaptic control.
Leslie Tung (Biomedical Engineering and Whitaker Institute)
Photolithographic, micro-contact printing, and micro-abrasion techniques are
employed to place predefined patterns of extracellular matrix proteins or
topological features onto cover slips that serve to guide the growth and spread
of cardiac cells in culture. Dr. Tung creates engineered monolayers of neonatal
rat cardiac cells containing up to several hundred thousand cells, so that their
integrated, functional electrophysiology can be studied using optical mapping
techniques.
Christopher Chen (Biomedical Engineering and Whitaker Institute)
Prof. Chen
investigates mechanisms to integrate solid-state devices and living cells for
medical, environmental, and defense applications. Such integration relies on an
appreciation for how to control and monitor cells with such devices. The
microfabrication facility plays a critical role in his work by enabling to
fabricate the many types of model surfaces needed in these studies.
Andre Levchenko (Whitaker Institute and Biomedical Engineering)
Prof. Levchenko’s
lab is interested in understanding the mechanisms of intracellular signal
transduction and cell-cell communication. In particular, lab members are
involved in building and experimentally validating the models of how bacterial
cells interact (“quorum sensing”), how eukaryotic cells sense and respond to
gradients and how a cell decides between survival and suicide. All these
problems are addressed with currently established microfluidics based set-up
utilizing microfabricated PDMS chips.
William Sharpe (Mechanical Engineering)
Prof. Sharpe measures
the mechanical properties of materials used in MEMS. Tensile specimens as small
as 1 micron thick and 50 microns wide can be tested using specialized techniques
developed over the past several years. Stress-strain curves, high temperature
behavior, and fatigue lifetimes can be measured.
Jeff Wang (Mechanical Engineering and Whitaker Institute)
Prof. Wang’s research interests
include designs of micro/nano scale fluidic process and force fields for
molecular manipulation, single molecule detection, and experimental molecular
dynamics. His laboratory seeks to apply the technologies both for quick and
ultra-sensitive identification of biosignatures and for high-resolution study of
molecular interaction process.
Andreas G. Andreou (Electrical and Computer Engineering and Whitaker Institute)
Prof.
Andreou's research program examines the relationship between information, and
its physical representation in both biological and in human engineered
information processing systems. We study new ways of transforming and
communicating information that exploit physical properties of the underlying
technologies; from integrated circuit design principles that rely on the
non-linear characteristics of CMOS devices, to optoelectronic microstructure
architectures employing silicon on sapphire CMOS circuits, to micromechanical
filters for acoustic processing. Our laboratory has also developed hybrid
microsystems for bio-sensing and polarization imaging.
David Gracias (Chemical Engineering)
Prof
Gracias's research interests lie in the areas of Micro / Nanotechnology,
Self-assembly, Surface Science and Polymer Materials (including biomaterials)
Science. More specifically, the group is attempting to combine attributes of
organic (biological systems) and inorganic systems (silicon based
microtechnology) to build new bioinspired, (micro and nano scale) electronic and
mechanical materials and devices. The group is also interested in understanding
and manipulating properties of materials and surfaces on the nanometer length
scale.
Education
Two courses are offered for students that are interested in working in the laboratory. The first two are advanced introductory courses and the third course is project oriented.
520/580.495 Microfabrication Laboratory
This laboratory course is an introduction to the principles of microfabrication for synthesizing structures employed in sensors, MEMS, and microsystems with applications in medicine and biology. Course comprises of laboratory work and accompanying lectures that cover silicon oxidation, aluminum evaporation, photoresist deposition, photolithography, plating, etching, packaging, design and analysis CAD tools, and foundry services. (Andreou, Wang)
540.440/540.640 Chemical Engineering for Micro and Nano Technology
Nanotechnology is the field of fabrication, characterization and manipulation of extremely small objects (dimensions on the micron to nanometer length scale). Microscale objects, because of their small size are expected to be at the frontier of technological innovation for the next decade. This course will include a description of the materials used in microtechnology, methods employed to fabricate nanoscale objects, techniques involved in characterizing and exploiting the properties of small structures, and examples of how this technology is revolutionizing the areas of Electronics and Medicine (Gracias)
520.773 Advanced Topics in Fabrication and Microengineering
Graduate level, project oriented course with topics from current literature on microsystem integration of complex functional units across different physical scales from nano to micro and macro. Projects topics in the areas of emerging fabrication technologies, micro-electromechanical systems, hybrid biological-silicon microsystems, nanolithography, nanotechnology, soft lithography, self-assembly, and soft materials. Discussion will include biological systems as models of integration and functional complexity. (Staff)