Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Forming plural articles
Reexamination Certificate
2010-01-06
2011-11-15
Barton, Jeffrey T (Department: 1759)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Forming plural articles
C264S645000, C422S503000, C204S451000, C137S814000
Reexamination Certificate
active
08057724
ABSTRACT:
A disposable microsensor is designed, fabricated and tested for standard BOD (Biochemical Oxygen Demand) measurements. A transparent Cyclic Olefin Copolymer (COC) substrate is used for sensor fabrication. Standard lithographic procedures in addition to techniques like screen printing and electroplating are used to fabricate the sensor. A microbial strain ofTrichosporon Cutaneumis immobilized over one pair of sensor electrodes while the other is used as a reference. Depending on the respiratory activities of the microbial strain in different samples, the BOD values of the samples can be measured in terms of difference between the output signals. The sensor layer is attached to an injection-molded passive microfluidic channel on the top. Advantages of the BOD microsensor include, but are not limited to, fast BOD measurement, disposability because of its low cost, chemically inert polymer substrate, flow-through sample injection scheme and integration of on-chip optics.
REFERENCES:
patent: 3465774 (1969-09-01), Kautz
patent: 4975175 (1990-12-01), Karube
patent: 5085759 (1992-02-01), Harker
patent: 5409666 (1995-04-01), Nagel et al.
patent: 5536662 (1996-07-01), Humphries
patent: 5580523 (1996-12-01), Bard
patent: 5882465 (1999-03-01), McReynolds
patent: 6086825 (2000-07-01), Sundberg
patent: 6113762 (2000-09-01), Karube et al.
patent: 6251343 (2001-06-01), Dubrow
patent: 6287438 (2001-09-01), Knoll
patent: 6454924 (2002-09-01), Jedrzejewski
patent: 6524790 (2003-02-01), Kopf-Sill
patent: 6615857 (2003-09-01), Sinha
patent: 6645432 (2003-11-01), Anderson
patent: 6689602 (2004-02-01), Keeping
patent: 6716620 (2004-04-01), Bashir
patent: 6740225 (2004-05-01), Gurry
patent: 2002/0015992 (2002-02-01), Keeping
patent: 2002/0023684 (2002-02-01), Chow
patent: 2002/0034818 (2002-03-01), Schillig
patent: 2002/0055167 (2002-05-01), Pourahmadi
patent: 2002/0093143 (2002-07-01), Tai
patent: 2002/0124896 (2002-09-01), O'Connor
patent: 2003/0023149 (2003-01-01), Montemagno
patent: 2003/0206832 (2003-11-01), Thiebaud
patent: 2003/0224506 (2003-12-01), Agrawal
patent: 2004/0053290 (2004-03-01), Terbrueggen
patent: 2004/0197899 (2004-10-01), Gomez
patent: 2005/0130292 (2005-06-01), Ahn et al.
patent: WO0299410 (2002-12-01), None
Micromolding section from Ch. 3, Fabrication Techniques for Microfluidics, Fundamentals and Applications of Microfluidics by N.-T. Nguyen & S. T. Wereley, Artech House, Boston: 2002, p. 116-117.
Puntambekar, Self-Aligning Microfluidic Interconnects for Glass- and Plastic-Based Microfluidic Systems, J. Micromech. Microeng., 2002, pp. 35-40, vol. 12.
Pattekar, Novel Microfluidic Interconnectors for High Temperature and Pressure Applications, J. Micromech. Microeng., 2003, pp. 337-345, vol. 13.
Mehta, A Disposable BOD Microsensor Using a Polymer Substrate, 3rd International Conference on Sensors: Vienna Austria, 2004, p. 1-4.
Mehta, A Disposable Microbial Sensor for Rapid BOD Measurement, 8th International Conference in Miniaturised Systems for Chemistry and Life Science (micro- TAS 2004) Malmo, Sweden, 2004, p. 1-3.
Halakatti, A Disposable Microsensor for Continuous Monitoring of Fee Chlorine in Water, 2nd IEEE International Conference on Sensors, Toronto, Canada, 2003, p. 67-70.
Gartner, Polymer Based Microfluidic Devices-Examples for Fluidic Interfaces and Standardization Concepts, Proceedings of SPIE—The International Society for Optical Engineering, 2003, p. 99-104.
Mam, Microfluidic Plastic Capillaries on Silicon Substrates: A New Inexpensive Technology for Bioanalysis Chips, MEMS Conference, Nagoya, Japan, 1997, p. 1-6.
Mehta, A Disposable BOD Microsensor Using Polymer Substrates, Proceedings of IEEE, Sensors, 2004, pp. 1202-1205.
Cho Hyoung Jin
Halakatti Shekhar
Mehta Anjum
Ball J. Christopher
Barton Jeffrey T
Law Offices of Brian S. Steinberger , P.A.
Morlin Joyce P.
Steinberger Brian S.
LandOfFree
Portable water quality sensor fabrication method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable water quality sensor fabrication method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable water quality sensor fabrication method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4258445