Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688482
E. Mazzotta, C. Malitesta, S. Surdo, G. Barillaro
Light-activated electropolymerization on micromachined n-type silicon is here demonstrated to be a versatile route for microstructuring conducting polymers (CPs) and CP-based Molecularly Imprinted Polymers (MIPs). Several CPs - namely polypyrrole (PPy), poly(3,4-ethylendioxythiophene) (PEDOT), poly(3-methylthiophene) (P3MT), polythiophene (PT) - and a PPy-based MIP have been deposited on different microstructured n-type silicon templates featuring ordered-array of pores with variable aspect-ratio (AR) between 1 and 10. CP and MIP microtubes with size of a few micrometers, height from 5 up to 50 micrometers, and period of a few micrometers are successfully synthesized by replication of the silicon template features with submicrometer accuracy, as demonstrated by scanning electron microscopy (SEM). A significant electroactivity increase is observed for CP microtubes thanks to the augmented surface of microstructured films, as highlighted by cyclic voltammetry (CV), thus demonstrating that the entire microstructured polymer surface is effectively involved in electrochemical redox processes. PPy-based MIPs for the antibiotic sulfadimethoxine (SDM) exhibit good sensing properties in SDM electrochemical detection, with current responses notably higher than Not-Imprinted Polymers (NIPs). A significant current response increase on microstructured MIPs with respect to the flat ones is also verified.
{"title":"Microstructuring conducting polymers and molecularly imprinted polymers by light-activated electropolymerization on micromachined silicon. Applications in electrochemical sensing","authors":"E. Mazzotta, C. Malitesta, S. Surdo, G. Barillaro","doi":"10.1109/ICSENS.2013.6688482","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688482","url":null,"abstract":"Light-activated electropolymerization on micromachined n-type silicon is here demonstrated to be a versatile route for microstructuring conducting polymers (CPs) and CP-based Molecularly Imprinted Polymers (MIPs). Several CPs - namely polypyrrole (PPy), poly(3,4-ethylendioxythiophene) (PEDOT), poly(3-methylthiophene) (P3MT), polythiophene (PT) - and a PPy-based MIP have been deposited on different microstructured n-type silicon templates featuring ordered-array of pores with variable aspect-ratio (AR) between 1 and 10. CP and MIP microtubes with size of a few micrometers, height from 5 up to 50 micrometers, and period of a few micrometers are successfully synthesized by replication of the silicon template features with submicrometer accuracy, as demonstrated by scanning electron microscopy (SEM). A significant electroactivity increase is observed for CP microtubes thanks to the augmented surface of microstructured films, as highlighted by cyclic voltammetry (CV), thus demonstrating that the entire microstructured polymer surface is effectively involved in electrochemical redox processes. PPy-based MIPs for the antibiotic sulfadimethoxine (SDM) exhibit good sensing properties in SDM electrochemical detection, with current responses notably higher than Not-Imprinted Polymers (NIPs). A significant current response increase on microstructured MIPs with respect to the flat ones is also verified.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"2021 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128047062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688382
Weidong Zhang, E. Brown, L. Viveros
A terahertz (THz) conical horn waveguide coupler was designed, fabricated, and tested for analysis of THz (100-1700GHz) vibrational modes of chemical and biological materials with small mass (<;1mg) or small volume (<;0.1μL). The waveguide concentrates THz fields, which excite stronger interactions with the samples. As examples the spectra of lactose, thymine, Bacillus thuringiensis and E. coli are presented.
{"title":"Terahertz conical horn waveguide coupler for spectroscopic analysis of biomaterials","authors":"Weidong Zhang, E. Brown, L. Viveros","doi":"10.1109/ICSENS.2013.6688382","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688382","url":null,"abstract":"A terahertz (THz) conical horn waveguide coupler was designed, fabricated, and tested for analysis of THz (100-1700GHz) vibrational modes of chemical and biological materials with small mass (<;1mg) or small volume (<;0.1μL). The waveguide concentrates THz fields, which excite stronger interactions with the samples. As examples the spectra of lactose, thymine, Bacillus thuringiensis and E. coli are presented.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134295587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688450
Amol Singh, Md. A. Uddin, T. Sudarshan, G. Koley
Graphene, a two-dimensional material with a very high charge carrier concentration, is ideal for sensing chemical species based upon charge exchange. The sensitivity of graphene is shown to improve many folds by using graphene/semiconductor heterostructure. A new amperometric chemical sensing paradigm based upon transport across graphene/p-Si Schottky diode under reverse bias is demonstrated in this work. The reported very high sensitivity of graphene/p-Si heterostructure is in direct agreement with small change in Schottky barrier height due to molecular adsorption on graphene causing large change in reverse saturation current due to exponential dependence of later on the former.
{"title":"Gas sensing by graphene/silicon hetrostructure","authors":"Amol Singh, Md. A. Uddin, T. Sudarshan, G. Koley","doi":"10.1109/ICSENS.2013.6688450","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688450","url":null,"abstract":"Graphene, a two-dimensional material with a very high charge carrier concentration, is ideal for sensing chemical species based upon charge exchange. The sensitivity of graphene is shown to improve many folds by using graphene/semiconductor heterostructure. A new amperometric chemical sensing paradigm based upon transport across graphene/p-Si Schottky diode under reverse bias is demonstrated in this work. The reported very high sensitivity of graphene/p-Si heterostructure is in direct agreement with small change in Schottky barrier height due to molecular adsorption on graphene causing large change in reverse saturation current due to exponential dependence of later on the former.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"29 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134260184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688536
S. Clara, H. Antlinger, W. Hilber, B. Jakoby
We present the operation of a previously introduced orbiting sphere viscometer in resonant mode at small amplitudes to demonstrate the feasibility of miniaturization. In chemical processes control, often comparability of novel viscosity measurement and sensing principles with well-established principles is essential since the measured viscosity crucially depends on the measurement parameters utilized (e.g., shear rate, oscillation frequency, etc.). The orbiting sphere viscometer on one hand mimics the falling ball principle and on the other hand extends its properties. It can be operated in an orbiting mode which, for large radii, reproduces the interaction of a linearly moving sphere with the surrounding liquid. For smaller amplitudes, the interaction is more comparable to other oscillating viscometer principles. In the present paper, we focus on this latter mode of operation, show its feasibility and present according sample results.
{"title":"Orbiting sphere viscometer operated in resonant orbiting mode","authors":"S. Clara, H. Antlinger, W. Hilber, B. Jakoby","doi":"10.1109/ICSENS.2013.6688536","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688536","url":null,"abstract":"We present the operation of a previously introduced orbiting sphere viscometer in resonant mode at small amplitudes to demonstrate the feasibility of miniaturization. In chemical processes control, often comparability of novel viscosity measurement and sensing principles with well-established principles is essential since the measured viscosity crucially depends on the measurement parameters utilized (e.g., shear rate, oscillation frequency, etc.). The orbiting sphere viscometer on one hand mimics the falling ball principle and on the other hand extends its properties. It can be operated in an orbiting mode which, for large radii, reproduces the interaction of a linearly moving sphere with the surrounding liquid. For smaller amplitudes, the interaction is more comparable to other oscillating viscometer principles. In the present paper, we focus on this latter mode of operation, show its feasibility and present according sample results.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"10 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134064658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688613
Fu-To Lin, Jen-Chien Hsieh, F. Wen, Wei-Kuan Wang, Huang-Chen Lee, Y. Liao
Limited energy source dominates the use of sensor system, especially for outdoor environment monitoring. This paper presents a self-sustained moisture and temperature monitoring system using soil energy. The fabricated 36.5 cm3 soil cell (Zinc-Carbon electrodes) can provide maximum output power of 70μW at a load of 2kΩ. The proposed sensor system includes custom DC-DC converter IC, microcontroller, micro-LCD display and temperature as well as moisture sensors. The system was demonstrated measuring temperature and moisture changes directly using inexpensive and renewable soil energy without external power supply. This technology may enable remote field environment monitoring with less labor-intensive work and battery replacement.
{"title":"Towards a self-sustained moisture and temperature monitoring system using soil energy","authors":"Fu-To Lin, Jen-Chien Hsieh, F. Wen, Wei-Kuan Wang, Huang-Chen Lee, Y. Liao","doi":"10.1109/ICSENS.2013.6688613","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688613","url":null,"abstract":"Limited energy source dominates the use of sensor system, especially for outdoor environment monitoring. This paper presents a self-sustained moisture and temperature monitoring system using soil energy. The fabricated 36.5 cm3 soil cell (Zinc-Carbon electrodes) can provide maximum output power of 70μW at a load of 2kΩ. The proposed sensor system includes custom DC-DC converter IC, microcontroller, micro-LCD display and temperature as well as moisture sensors. The system was demonstrated measuring temperature and moisture changes directly using inexpensive and renewable soil energy without external power supply. This technology may enable remote field environment monitoring with less labor-intensive work and battery replacement.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122193703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688335
C. Carron, P. Getz, J.-J. Su, D. Gottfried, O. Brand, F. Josse, Stephen M. Heinrich
This work presents mass-sensitive hammerhead resonators with integrated recesses as a gas-phase chemical microsensor platform. Recesses are etched into the head region of the resonator to locally deposit chemically sensitive polymers by ink-jet printing. This permits the sensing films to be confined to areas that (a) are most effective in detecting mass loading and (b) are not strained during the in-plane vibrations of the resonator. As a result of the second point, even 5-μm thick polymer coatings on resonators with a 9-12 μm silicon thickness barely affect the Q-factor in air. This translates into higher frequency stability and ultimately higher sensor resolution compared to uniformly coated devices.
{"title":"Cantilever-based resonant gas sensors with integrated recesses for localized sensing layer deposition","authors":"C. Carron, P. Getz, J.-J. Su, D. Gottfried, O. Brand, F. Josse, Stephen M. Heinrich","doi":"10.1109/ICSENS.2013.6688335","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688335","url":null,"abstract":"This work presents mass-sensitive hammerhead resonators with integrated recesses as a gas-phase chemical microsensor platform. Recesses are etched into the head region of the resonator to locally deposit chemically sensitive polymers by ink-jet printing. This permits the sensing films to be confined to areas that (a) are most effective in detecting mass loading and (b) are not strained during the in-plane vibrations of the resonator. As a result of the second point, even 5-μm thick polymer coatings on resonators with a 9-12 μm silicon thickness barely affect the Q-factor in air. This translates into higher frequency stability and ultimately higher sensor resolution compared to uniformly coated devices.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123186571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688247
C. Shemelya, Fernando Cedillos, E. Aguilera, E. Maestas, Jorge Ramos, D. Espalin, D. Muse, R. Wicker, E. MacDonald
Recent advances in the field of 3D printing have utilized embedded electronic interconnects in order to construct advanced electronic devices. This work builds on these advances in order to construct and characterize arbitrarily formed capacitive sensors using fine-pitch copper mesh and embedded copper wires. Three varieties of sensors were fabricated and tested, including a small area wire sensor (320μm width), a large area mesh sensor (2cm2), and a fully embedded demonstration model. In order to test and characterize these sensors in FDM materials, three distinct tests were explored. Specifically, the sensors were able to distinguish between three metallic materials and distinguish salt water from distilled water. These capacitive sensors have many potential sensing applications, such as biomedical sensing, human interface devices, material sensing, electronics characterization, and environmental sensing. As such, this work specifically examines optimum mesh/wire capacitive parameters as well as potential applications such as 3D printed integrated material sensing.
{"title":"3D printed capacitive sensors","authors":"C. Shemelya, Fernando Cedillos, E. Aguilera, E. Maestas, Jorge Ramos, D. Espalin, D. Muse, R. Wicker, E. MacDonald","doi":"10.1109/ICSENS.2013.6688247","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688247","url":null,"abstract":"Recent advances in the field of 3D printing have utilized embedded electronic interconnects in order to construct advanced electronic devices. This work builds on these advances in order to construct and characterize arbitrarily formed capacitive sensors using fine-pitch copper mesh and embedded copper wires. Three varieties of sensors were fabricated and tested, including a small area wire sensor (320μm width), a large area mesh sensor (2cm2), and a fully embedded demonstration model. In order to test and characterize these sensors in FDM materials, three distinct tests were explored. Specifically, the sensors were able to distinguish between three metallic materials and distinguish salt water from distilled water. These capacitive sensors have many potential sensing applications, such as biomedical sensing, human interface devices, material sensing, electronics characterization, and environmental sensing. As such, this work specifically examines optimum mesh/wire capacitive parameters as well as potential applications such as 3D printed integrated material sensing.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134297845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688348
X. Rottenberg, R. Jansen, Vladimir Cherman, A. Witvrouw, H. Tilmans, Mohamed Zanaty, A. Khaled, M. Abbas
This paper demonstrates for the first time the use of meta-materials (MTM) in bulk acoustic wave resonators (BARs) for sensing applications under atmospheric pressure conditions. Key is the observation that implementing square holes in the BARs modifies their specific surface area (area-to-volume ratio) and lowers their mass. We establish through simulations and measurements that increasing the perforation density and decreasing the perforation pitch both improve the sensitivity of BARs, in the limit becoming independent of the BAR thickness. The thickness can thus be increased without paying a penalty in lowering the motional impedance of the BARs, while easing the specifications for drive and readout circuitry. We finally report a measured improvement in DNA detection sensitivity by more than one order of magnitude enabled by introducing MTM in BARs implemented in the SiGe-MEMS process from IMEC.
{"title":"Meta-materials approach to sensitivity enhancement of MEMS BAW resonant sensors","authors":"X. Rottenberg, R. Jansen, Vladimir Cherman, A. Witvrouw, H. Tilmans, Mohamed Zanaty, A. Khaled, M. Abbas","doi":"10.1109/ICSENS.2013.6688348","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688348","url":null,"abstract":"This paper demonstrates for the first time the use of meta-materials (MTM) in bulk acoustic wave resonators (BARs) for sensing applications under atmospheric pressure conditions. Key is the observation that implementing square holes in the BARs modifies their specific surface area (area-to-volume ratio) and lowers their mass. We establish through simulations and measurements that increasing the perforation density and decreasing the perforation pitch both improve the sensitivity of BARs, in the limit becoming independent of the BAR thickness. The thickness can thus be increased without paying a penalty in lowering the motional impedance of the BARs, while easing the specifications for drive and readout circuitry. We finally report a measured improvement in DNA detection sensitivity by more than one order of magnitude enabled by introducing MTM in BARs implemented in the SiGe-MEMS process from IMEC.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132352126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688326
Sang-Joong Jung, W. Chung
A mobile healthcare system using the Android-based smartphone is successfully implemented in the IP-based wireless sensor networks with the help of the IPv6 technique. The IP-based wireless sensor networks provide a wide range of effective, comprehensive, and convenient healthcare services through the internet or external IP-enabled networks to the IP node via the gateway according to the concept of IPv6 over low-power wireless personal area networks (6LoWPAN). In addition, the Android-based smartphone used by patients and doctors at the end of the networks in real-time displays the recorded biomedical signals as well as information of health conditions. Based on these results from practical experiments, the estimations of patient's health condition are processed by using the heart rate variability analysis in time and frequency domains under the normal and stressed states. In addition, the monitoring application on the smartphone provides useful information such as the waveforms of the 100-Hz ECG signal and 75-Hz PPG signal, sensor type, data bytes, the IPv6 address, and health features.
{"title":"Wide and high accessible mobile healthcare system in IP-based wireless sensor networks","authors":"Sang-Joong Jung, W. Chung","doi":"10.1109/ICSENS.2013.6688326","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688326","url":null,"abstract":"A mobile healthcare system using the Android-based smartphone is successfully implemented in the IP-based wireless sensor networks with the help of the IPv6 technique. The IP-based wireless sensor networks provide a wide range of effective, comprehensive, and convenient healthcare services through the internet or external IP-enabled networks to the IP node via the gateway according to the concept of IPv6 over low-power wireless personal area networks (6LoWPAN). In addition, the Android-based smartphone used by patients and doctors at the end of the networks in real-time displays the recorded biomedical signals as well as information of health conditions. Based on these results from practical experiments, the estimations of patient's health condition are processed by using the heart rate variability analysis in time and frequency domains under the normal and stressed states. In addition, the monitoring application on the smartphone provides useful information such as the waveforms of the 100-Hz ECG signal and 75-Hz PPG signal, sensor type, data bytes, the IPv6 address, and health features.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"20 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131897829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-19DOI: 10.1109/ICSENS.2013.6688363
Marion Schneider, A. Turke, W. Fischer, P. Kilmartin
The determination of wine additives such as sulfur dioxide and ascorbic acid is motivated by limiting these substances because of their potential noxious effects. Cyclic voltammetry with inkjet printed electrodes on a PET foil was used to quantify free sulfur dioxide and ascorbic acid in a model wine solution. Two different kinds of electrodes were manufactured: Silver electrodes and silver electrodes modified with gold nanoparticles. Inkjet printed electrodes showed high sensitivity and selectivity towards ascorbic acid and sulfur dioxide and a linear relationship between concentration and peak current was observed. Modification of the inkjet printed silver electrode with gold nanoparticles increased the sensitivity. Additionally, more defined current peaks were obtained, that proved the excellent suitability of the silver electrodes modified with gold nanoparticles for precise determination of sulfur dioxide and ascorbic acid in wine.
{"title":"Inkjet printed electrodes for determination of sulfur dioxide and ascorbic acid in wine","authors":"Marion Schneider, A. Turke, W. Fischer, P. Kilmartin","doi":"10.1109/ICSENS.2013.6688363","DOIUrl":"https://doi.org/10.1109/ICSENS.2013.6688363","url":null,"abstract":"The determination of wine additives such as sulfur dioxide and ascorbic acid is motivated by limiting these substances because of their potential noxious effects. Cyclic voltammetry with inkjet printed electrodes on a PET foil was used to quantify free sulfur dioxide and ascorbic acid in a model wine solution. Two different kinds of electrodes were manufactured: Silver electrodes and silver electrodes modified with gold nanoparticles. Inkjet printed electrodes showed high sensitivity and selectivity towards ascorbic acid and sulfur dioxide and a linear relationship between concentration and peak current was observed. Modification of the inkjet printed silver electrode with gold nanoparticles increased the sensitivity. Additionally, more defined current peaks were obtained, that proved the excellent suitability of the silver electrodes modified with gold nanoparticles for precise determination of sulfur dioxide and ascorbic acid in wine.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132221395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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