BSAC Logo
Berkeley Sensor & Actuator Center
 

The Berkeley Sensor & Actuator Center (BSAC) is the Graduated National Science Foundation Industry/University Cooperative Research Center for Microsensors and Microactuators. We conduct industry-relevant, interdisciplinary research on micro- and nano-scale sensors, moving mechanical elements, microfluidics, materials, processes & systems that take advantage of progress made in integrated-circuit, bio, and polymer technologies.

BSAC Current Active Projects as of June 23, 2018

Number of records: 4
POSTERRESEARCH THRUSTABSTRACT
click link to view abstract
PROJECT MATERIALS
WEBSITE, Login Required
PROJECT TITLEADVISOR
23BioMEMSBPN853BPN853 WebsiteTethered Bacteria-Based BiosensingMichel M. Maharbiz
32Wireless, RF & Smart DustBPN828BPN828 WebsiteZero Quiescent Power Micromechanical ReceiverClark T.-C. Nguyen
33Wireless, RF & Smart DustBPN814BPN814 WebsiteUHF Capacitive-Gap Transduced Resonators With High Cx/CoClark T.-C. Nguyen
61Package, Process & MicroassemblyBPN354BPN354 WebsiteThe Nanoshift Concept: Innovation through Design, Development, Prototyping, and Fabrication ServicesMichael D. Cable

Project Abstracts

Document Top
Table of Projects
BioMEMS
Project IDBPN853
Project Title Tethered Bacteria-Based Biosensing
Status Completed
Funding Source Office of Naval Research (ONR)
Keywords biosensing, bacterial chemotaxis, bacterial flagellar motor, microbiorobotics
Researchers Tom J. Zajdel
Abstract Though the chemotaxis sensing system of emph{Escherichia coli} is known to approach fundamental physical limits for biosensing, few attempts have been made to co-opt the system as the front end for a biohybrid sensor. We propose a biohybrid sensor that monitors chemotactic bacterial flagellar motor (BFM) rotation speed and direction to infer analyte concentration for a low-power, fast, and sensitive response. We present the design and fabrication of a four point impedimetric array that uses current injection electrodes to circumvent electrode polarization screening, enabling solution resistance monitoring within a four-micron by four-micron region. We also demonstrate dielectric microbead shaft encoders for the BFM, which bind to the BFM and encode rotation. When these two components are integrated by bringing the rotating shaft encoders in proximity to the microelectrode array, they will enable an electrochemical method for observing the BFM. Such an impedance-based biohybrid sensor obviates the need for a microscope and in principle may be multiplexed and scaled to large arrays of BFMs, enabling the development of deployable low-power and fast sensing systems that directly observe the BFM to infer analyte concentration.
Contact Information zajdel@eecs.berkeley.edu, maharbiz@berkeley.edu
Advisor Michel M. Maharbiz

 
Document Top
Table of Projects
Wireless, RF & Smart Dust
Project IDBPN828
Project Title Zero Quiescent Power Micromechanical Receiver
Status Continuing
Funding Source DARPA
Keywords
Researchers Alper Ozgurluk
Abstract This project aims to explore and demonstrate a mostly mechanical receiver capable of listening without consuming any power, consuming power only when receiving valid bits.
Contact Information ozgurluk@eecs.berkeley.edu, ctnguyen@eecs.berkeley.edu
Advisor Clark T.-C. Nguyen

 
Document Top
Table of Projects
Wireless, RF & Smart Dust
Project IDBPN814
Project Title UHF Capacitive-Gap Transduced Resonators With High Cx/Co
Status Continuing
Funding Source DARPA
Keywords
Researchers Alper Ozgurluk
Abstract The project explores methods by which the Cx/Co of UHF capacitive-gap transduced resonators might be increased to above 5% while maintaining Qs 10,000.
Contact Information ozgurluk@eecs.berkeley.edu
Advisor Clark T.-C. Nguyen

 
Document Top
Table of Projects
Package, Process & Microassembly
Project IDBPN354
Project Title The Nanoshift Concept: Innovation through Design, Development, Prototyping, and Fabrication Services
Status Continuing
Funding Source Industry
Keywords Nanoshift, nanolab, microlab, process, recharge, commercial
Researchers Ning Chen, Salah Uddin
Abstract Nanoshift LLC is a privately held development company specializing in MEMS, microfluidics, and nanotechnologies. Nanoshift provides high quality, customizable services for device and process design, research and development, rapid prototyping, low-volume fabrication, and technology transfer into high volume. Projects are typically from industry, government, and academia. Nanoshift collaborates with BSAC to make industry-leading development resources available for all BSAC Industrial Members, while improving BSAC's visibility and funding.
Contact Information reception@bsac.eecs.berkeley.edu
Advisor Michael D. Cable