Portable water quality monitoring system

Details Portable water quality monitoring system Portable water quality monitoring system

2005-04-14

2010-02-23

Nguyen, Nam X (Department: 1795)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S601000, C204S643000, C137S814000, C137S833000

Reexamination Certificate

active

07666285

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 et al
patent: 4975175 (1990-12-01), Karube
patent: 5085759 (1992-02-01), Harker
patent: 5536662 (1996-07-01), Humphries
patent: 5580523 (1996-12-01), Bard
patent: 5882465 (1999-03-01), McReynolds
patent: 6086825 (2000-07-01), Sundberg et al.
patent: 6251343 (2001-06-01), Dubrow et al.
patent: 6287438 (2001-09-01), Knoll
patent: 6454924 (2002-09-01), Jedrzejewski et al.
patent: 6524790 (2003-02-01), Kopf-Sill
patent: 6615857 (2003-09-01), Sinha et al.
patent: 6645432 (2003-11-01), Anderson et al.
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 et al.
patent: 2002/0124896 (2002-09-01), O'Connor et al.
patent: 2003/0023149 (2003-01-01), Montemagno
patent: 2003/0206832 (2003-11-01), Thiebaud et al.
patent: 2003/0224506 (2003-12-01), Agrawal et al.
patent: 2004/0053290 (2004-03-01), Terbrueggen et al.
patent: 2004/0197899 (2004-10-01), Gomez
patent: WO 02/099410 (2002-12-01), None
Anjum, M., et al., “A disposable BOD microsensor using polymer substrates”, Proceedings of IEEE, Sensors 2004, vol. 3, Oct. 24-27, 2004, pp. 1202-1205.
Puntambekar, et al., “Self-aligning microfluidic interconnects for glass- and plastic-based microfluidic systems” J. Micromech. Microeng. (2002) vol. 12 pp. 35-40.
Pattekar, et al., “Novel microfluidic interconnectors for high temperature and pressure applications” J. Micromech. Microeng. (2003) vol. 13 pp. 337-345.
Mehta Anjum, A Disposable BOD Microsensor Using a Polymer substrate, Oct. 24-27, 2004 p. 1-4, (3rdInternational Conference on Sensors: Vienna, Austria).
Mehta Anjum,A Disposable Microbial Sensor For Rapid BOD Measurement, Sep. 26-30, 2004, p. 1-3, ( 8thInternational Conference on Miniaturised Systems for Chemistry and Life Science (micro-TAS 2004). Malmo, Sweden).
Halakatti Shekhar,A Disposable Microsensor for Continuous Monitoring of Fee Chlorine in Water, Oct. 22-24, 2003, p. 67-70, (2ndIEEE International Conference on Sensors, Toronto, Canada).
Claudia Gartner,Polymer Based Microfluidic Devices-Examples for Fluidic Interfaces and Standardization Concepts, Jan. 27-29, 2003, p. 99-104, (Proceedings of SPIE—The International Society for Optical Engineering).
P.F. Mam,Microfluidic Plastic Capillaries on Silicon Substrates: A New Inexpensive Technology for Bioanalysis Chips, Jan. 26-30, 1997, p. 1-6, MEMS Conference, Nagoya, Japan).

Affiliated with

Also associated with

Rating

Portable water quality monitoring system 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 monitoring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable water quality monitoring system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4211939