MEMS based impedimetric sensing of phthalates

Handle URI:
http://hdl.handle.net/10754/564715
Title:
MEMS based impedimetric sensing of phthalates
Authors:
Zia, Asif I.; Mohd. Syaifudin, A. R.; Mukhopadhyay, Subhas Chandra; Al-Bahadly, Ibrahim H.; Yu, Paklam; Gooneratne, Chinthaka Pasan; Kosel, Jürgen ( 0000-0002-8998-8275 ) ; Liao, Taishan
Abstract:
Phthalate esters are known ubiquitous teratogenic and carcinogenic environmental and food pollutants. Their detection and quantification is strictly laboratory based, time consuming, expensive and professionally handled procedure. Presented research work describes a real time non-invasive detection technique for phthalates detection in ethanol, water and drinks. The new type of inter-digital sensor design incorporating multiple sensing gold electrodes were fabricated on silicon substrate based on thin film micro-electromechanical system (MEMS) using semiconductor device fabrication technology. A passivation layer of Silicon Nitride (Si3N4) was used to functionalize the sensor. Various concentrations (0.1 to 20ppm) of DINP (di-isononyl phthalates) in ethanol and di (2-ethylhexyl) phthalate (DEHP) in deionized MilliQ water were subjected to the testing system by dip testing method. Electrochemical impedance spectroscopy (EIS) technique was used to obtain impedance spectra in order to determine sample conductance for evaluation of its dielectric properties. The impedance spectra so obtained showed that the sensor was able to detect the presence of phthalates in the samples distinctively. Electrochemical Spectrum Analyser was used to model the experimentally obtained impedance spectra by curve fitting technique to figure out Constant Phase Element (CPE) equivalent circuit. Locally available energy drink and juice was added with phthalates in concentrations of 2, 6 and 10ppm to observe the performance of the sensor in such products. Experimental results showed that the new sensor was able to detect different concentrations of phthalates in energy drinks. © 2013 IEEE.
KAUST Department:
Sensing, Magnetism and Microsystems Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)
Conference/Event name:
2013 IEEE International Instrumentation and Measurement Technology Conference: Instrumentation and Measurement for Life, I2MTC 2013
Issue Date:
May-2013
DOI:
10.1109/I2MTC.2013.6555536
Type:
Conference Paper
ISSN:
10915281
ISBN:
9781467346221
Appears in Collections:
Conference Papers; Electrical Engineering Program; Sensing, Magnetism and Microsystems Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZia, Asif I.en
dc.contributor.authorMohd. Syaifudin, A. R.en
dc.contributor.authorMukhopadhyay, Subhas Chandraen
dc.contributor.authorAl-Bahadly, Ibrahim H.en
dc.contributor.authorYu, Paklamen
dc.contributor.authorGooneratne, Chinthaka Pasanen
dc.contributor.authorKosel, Jürgenen
dc.contributor.authorLiao, Taishanen
dc.date.accessioned2015-08-04T07:13:28Zen
dc.date.available2015-08-04T07:13:28Zen
dc.date.issued2013-05en
dc.identifier.isbn9781467346221en
dc.identifier.issn10915281en
dc.identifier.doi10.1109/I2MTC.2013.6555536en
dc.identifier.urihttp://hdl.handle.net/10754/564715en
dc.description.abstractPhthalate esters are known ubiquitous teratogenic and carcinogenic environmental and food pollutants. Their detection and quantification is strictly laboratory based, time consuming, expensive and professionally handled procedure. Presented research work describes a real time non-invasive detection technique for phthalates detection in ethanol, water and drinks. The new type of inter-digital sensor design incorporating multiple sensing gold electrodes were fabricated on silicon substrate based on thin film micro-electromechanical system (MEMS) using semiconductor device fabrication technology. A passivation layer of Silicon Nitride (Si3N4) was used to functionalize the sensor. Various concentrations (0.1 to 20ppm) of DINP (di-isononyl phthalates) in ethanol and di (2-ethylhexyl) phthalate (DEHP) in deionized MilliQ water were subjected to the testing system by dip testing method. Electrochemical impedance spectroscopy (EIS) technique was used to obtain impedance spectra in order to determine sample conductance for evaluation of its dielectric properties. The impedance spectra so obtained showed that the sensor was able to detect the presence of phthalates in the samples distinctively. Electrochemical Spectrum Analyser was used to model the experimentally obtained impedance spectra by curve fitting technique to figure out Constant Phase Element (CPE) equivalent circuit. Locally available energy drink and juice was added with phthalates in concentrations of 2, 6 and 10ppm to observe the performance of the sensor in such products. Experimental results showed that the new sensor was able to detect different concentrations of phthalates in energy drinks. © 2013 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleMEMS based impedimetric sensing of phthalatesen
dc.typeConference Paperen
dc.contributor.departmentSensing, Magnetism and Microsystems Laben
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journal2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)en
dc.conference.date6 May 2013 through 9 May 2013en
dc.conference.name2013 IEEE International Instrumentation and Measurement Technology Conference: Instrumentation and Measurement for Life, I2MTC 2013en
dc.conference.locationMinneapolis, MNen
dc.contributor.institutionSchool of Engineering and Advanced Technology, Massey University, Palmerston North, New Zealanden
dc.contributor.institutionInstrument Technology Research Centre, Taiwanen
kaust.authorGooneratne, Chinthaka Pasanen
kaust.authorKosel, Jürgenen
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