Economical wireless optical ratiometric pH sensor

Measurement Science and Technology

Volumn 20, Issue 4, 2009, Pages

  Vuppu, Sandeep ^a   Kostov, Yordan ^a   Rao, Govind ^a  

^a University of Marylandw Baltimore County   (United States)

Author keywords

Fluorescence; Microcontroller; Non invasive; Optical sensor; pH sensor; Portable instrument; Wireless

Indexed keywords

CONTROLLERS; DIGITAL FILTERS; FLUORESCENCE; LIGHT SOURCES; MICROCONTROLLERS; OPTICAL SENSORS; PH; RADIO; RADIO TRANSCEIVERS; SPACE OPTICS; WIRELESS TELECOMMUNICATION SYSTEMS;

COMMUNICATION MODULES; DEVELOPMENT AND APPLICATIONS; DIGITALLY CONTROLLED; MSP430 MICROCONTROLLERS; NON-INVASIVE; PORTABLE INSTRUMENT; RATIOMETRIC FLUORESCENCE; WIRELESS COMMUNICATIONS;

PH SENSORS;

EID: 63749111557     PISSN: 09570233     EISSN: 13616501     Source Type: Journal    
DOI: 10.1088/0957-0233/20/4/045202     Document Type: Article

References (18)

1. Yokota M, Okada T and Yamaguchi I 2007 An optical sensor for analysis of soil nutrients by using LED light sources Meas. Sci. Technol. 18 2197-201
2. Palma A J, Lopez-Gonzalez J, Asensio L J, Fernandez-Ramos M D and Capitan-Vallvey L F 2006 Microcontroller-based portable instrument for stabilized optical oxygen sensor Sensors Actuators B 121 629-38
3. Kwakye S and Baeumner A 2007 An embedded system for portable electrochemical detection Sensors Actuators B 123 336-43
4. Kfouri M et al 2008 Toward a miniaturized wireless fluorescence-based diagnostic imaging system IEEE J. Sel. Top. Quantum Electron. 14 226-34
5. Rolfe P, Scopesi F and Serra G 2007 Advances in fibre-optic sensing in medicine and biology Meas. Sci. Technol. 18 1683-8
6. Lambeck P V 2006 Integrated optical sensors for the chemical domain Meas. Sci. Technol. 17 R93-116
7. Martin F J F, Rodrigues J C C, Anton J C A, Perez J C V, Sanchez-Barragan I, Costa-Fernandez J M and Sanz-Medel A 2006 Design of low-cost optical instrument for pH fluorescence measurements IEEE Trans. Instrum. Meas. 55 1215-21
8. Kermis H R, Kostov Y, Harms P and Rao G 2002 A dual-excitation ratiometric fluorescent sensor for non-invasive bioprocess monitoring: development and application Biotechnol. Prog. 18 1047-53
9. Ge X, Hanson M, Shen H, Kostov Y, Brorson K A, Frey D D, Moreira A R and Rao G 2006 Validation of an optical sensor-based high-throughput bioreactor system for mammalian cell culture J. Biotechnol. 122 293-306
10. Hauser P C, Rupasinghe T W T and Cates N E 1995 A multi-wavelength photometer based on light-emitting diodes Talanta 42 605-12
11. Rumyantsev S L, Shur M S, Bilenko Y, Kosterin P V, Salzberg B M and J 2004 Low frequency noise and long-term stability of noncoherent light sources Appl. Phys. 96 966-9
12. Kermis H R, Kostov Y and Rao G 2003 Rapid method for the preparation of a robust optical pH sensor Analyst 128 1181-6
13. Kostov Y, Kermis H R and Rao G 2006 Ion-sensitive fluorescence optical sensor US Patent 7,029,630 (April 18)
14. Nichia Corporation Catalog Specifications for Nichia Blue LED model NSPB500
15. Dorrington A A and Kunnemeyer R 2002 A simple microcontroller based digital lock-in amplifier for the detection of low level optical signals Proc. First IEEE Int. Workshop on Electronic Design, Test and Applications 486-8
16. Harms P, Kostov Y, Ram A, French J A and Rao G 2006 Design of a 24 station microbioreactor platform Biotechnol. Bioeng. 93 6-13
17. Hanson M A, Ge X, Kostov Y, Brorson K A, Moreira A R and Rao G 2007 Comparisons of optical pH and dissolved oxygen sensors with traditional electrochemical probes during mammalian cell culture Biotechnol. Bioeng. 97 833-41
18. Kostov Y, Yotova L and Tzonkov S 1993 Dynamical model of optical absorption-based pH sensor Analyst 118 987-90