Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757144
M. Aspalli, S. Shetagar, S. F. Kodad
This paper proposes an economical method that can help the plants to make right decision in replacing the inefficient induction motors with efficient ones. This method focuses on the field efficiency of motors without the needs for removing motors and measuring the output power. The use of a few sets of measured data from field test coupled with the genetic algorithms for evaluating motor equivalent circuit parameter instead of using the no load and blocked-rotor tests is proposed, to illustrate how well the estimated efficiency matches that of calculated obtained from the standard evaluations. Test results indicate that this method has a high accuracy, then it is suitable for conducting onsite energy audits of motors in order to project cost savings and payback and to support a confidence decision regarding the investment in higher efficiency motors. As the cost of energy is growing at a high rate, the industries can save a considerable amount of money by replacing inefficient motors with new more energy-efficient ones.
{"title":"Estimation of induction motor field efficiency for energy audit and management using genetic algorithm","authors":"M. Aspalli, S. Shetagar, S. F. Kodad","doi":"10.1109/ICSENST.2008.4757144","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757144","url":null,"abstract":"This paper proposes an economical method that can help the plants to make right decision in replacing the inefficient induction motors with efficient ones. This method focuses on the field efficiency of motors without the needs for removing motors and measuring the output power. The use of a few sets of measured data from field test coupled with the genetic algorithms for evaluating motor equivalent circuit parameter instead of using the no load and blocked-rotor tests is proposed, to illustrate how well the estimated efficiency matches that of calculated obtained from the standard evaluations. Test results indicate that this method has a high accuracy, then it is suitable for conducting onsite energy audits of motors in order to project cost savings and payback and to support a confidence decision regarding the investment in higher efficiency motors. As the cost of energy is growing at a high rate, the industries can save a considerable amount of money by replacing inefficient motors with new more energy-efficient ones.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"13 1","pages":"440-445"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87714271","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757105
M. Abe, S. Biwa, E. Matsumoto
In this paper, we attempt to evaluate the three dimensional shape of a parallelepiped flaw including its location, i.e., the horizontal position and the located surface, by biaxial Magnetic Flux Leakage Testing with neural network. The specimen is a magnetic material subjected to the magnetic field, and the magnetic flux in the specimen leaks near the flaw. We measure the biaxial Magnetic Flux Leakage, i.e., the tangential and the normal components of MFL by an amorphous Magneto-Impedance sensor. The amorphous MI sensor has the wide measurement range, high sensitivity and high spacial resolution, so that it is suitable for precise qualitative estimation by MFLT. We extract Characteristic Quantities from the one dimensional biaxial MFL distributions on each scanning line by Approximate Analytical Method. The horizontal position of a flaw along the scanning line is presented by some of the CQs. Neural network is used to predict the shape of the cross section of the flaw beneath each scanning line, i.e., the width, the depth including the located surface from the CQs. By repeating a similar process along several scanning lines parallel to the specimen surface, we can identify the three dimensional shape of the flaw. The neural network is found to be able to evaluate the three dimensional shape of unknown flaws in a good accuracy.
{"title":"Three dimensional evaluation of parallelepiped flaw using amorphous MI sensor and neural network in biaxial MFLT","authors":"M. Abe, S. Biwa, E. Matsumoto","doi":"10.1109/ICSENST.2008.4757105","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757105","url":null,"abstract":"In this paper, we attempt to evaluate the three dimensional shape of a parallelepiped flaw including its location, i.e., the horizontal position and the located surface, by biaxial Magnetic Flux Leakage Testing with neural network. The specimen is a magnetic material subjected to the magnetic field, and the magnetic flux in the specimen leaks near the flaw. We measure the biaxial Magnetic Flux Leakage, i.e., the tangential and the normal components of MFL by an amorphous Magneto-Impedance sensor. The amorphous MI sensor has the wide measurement range, high sensitivity and high spacial resolution, so that it is suitable for precise qualitative estimation by MFLT. We extract Characteristic Quantities from the one dimensional biaxial MFL distributions on each scanning line by Approximate Analytical Method. The horizontal position of a flaw along the scanning line is presented by some of the CQs. Neural network is used to predict the shape of the cross section of the flaw beneath each scanning line, i.e., the width, the depth including the located surface from the CQs. By repeating a similar process along several scanning lines parallel to the specimen surface, we can identify the three dimensional shape of the flaw. The neural network is found to be able to evaluate the three dimensional shape of unknown flaws in a good accuracy.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"16 1","pages":"238-241"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84105753","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757069
I. Ihara, M. Takahashi, K. Katoh
A new non-contact method with a laser ultrasonic technique for measuring surface temperature distribution of a material being heated is presented. The principle of the surface temperature measurement is based on temperature dependence of the velocity of the surface acoustic wave (SAW) propagating on a material surface. An effective method consisting of a SAW velocity measurement and an inverse analysis coupled with a one-dimensional finite difference calculation has been developed to determine surface temperature distributions quantitatively. In order to demonstrate the practical feasibility of the method, surface temperature distributions of a steel and aluminium plates are examined. The SAW of each plate is measured during heating using a laser ultrasound interferometer based on photorefractive two-wave mixing. The surface temperature distributions determined by the ultrasonic method almost agree with those measured using an infrared camera.
{"title":"Laser-ultrasonic sensing of surface temperature distribution of a material being heated","authors":"I. Ihara, M. Takahashi, K. Katoh","doi":"10.1109/ICSENST.2008.4757069","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757069","url":null,"abstract":"A new non-contact method with a laser ultrasonic technique for measuring surface temperature distribution of a material being heated is presented. The principle of the surface temperature measurement is based on temperature dependence of the velocity of the surface acoustic wave (SAW) propagating on a material surface. An effective method consisting of a SAW velocity measurement and an inverse analysis coupled with a one-dimensional finite difference calculation has been developed to determine surface temperature distributions quantitatively. In order to demonstrate the practical feasibility of the method, surface temperature distributions of a steel and aluminium plates are examined. The SAW of each plate is measured during heating using a laser ultrasound interferometer based on photorefractive two-wave mixing. The surface temperature distributions determined by the ultrasonic method almost agree with those measured using an infrared camera.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"44 1","pages":"37-41"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87347557","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757124
M. N. Al-Ameen, R. Hasan
The behavior of sensor networks is highly unpredictable because of randomness in individual node state and network structure. When a node fails, the packets transmitted to this faulty node is dropped if it is not cached by an operational node. In this paper some analytical models based on fault tolerance mechanisms have been proposed to be used in different aspects of caching a packet regarding this situation. The ratio of the time to be allocated to cache the packet by an operational node and the expected repair time of the faulty node represents a threshold that decides whether this operational node should cache the packet or it will pass the packet to a selected neighbor node. Analytical models developed in this paper have made detail and clear inspections in these respects. Distributed caching mechanism has been described in this paper, which makes a way to use the energy of the nodes in a distributed fashion to cache a packet. The models and mechanisms, described in this paper are distributed and highly scalable, which ensure energy efficient caching of a packet and thus highly applicable to the sensor networks.
{"title":"The mechanisms to decide on caching a packet on its way of transmission to a faulty node in wireless sensor networks based on the analytical models and mathematical evaluations","authors":"M. N. Al-Ameen, R. Hasan","doi":"10.1109/ICSENST.2008.4757124","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757124","url":null,"abstract":"The behavior of sensor networks is highly unpredictable because of randomness in individual node state and network structure. When a node fails, the packets transmitted to this faulty node is dropped if it is not cached by an operational node. In this paper some analytical models based on fault tolerance mechanisms have been proposed to be used in different aspects of caching a packet regarding this situation. The ratio of the time to be allocated to cache the packet by an operational node and the expected repair time of the faulty node represents a threshold that decides whether this operational node should cache the packet or it will pass the packet to a selected neighbor node. Analytical models developed in this paper have made detail and clear inspections in these respects. Distributed caching mechanism has been described in this paper, which makes a way to use the energy of the nodes in a distributed fashion to cache a packet. The models and mechanisms, described in this paper are distributed and highly scalable, which ensure energy efficient caching of a packet and thus highly applicable to the sensor networks.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"70 1","pages":"336-341"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77718377","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757081
A.I. Palaniappan, T. Melissa, S. Moochhala, F. Tay, S. Mhaisalkar
This paper emphasizes on development of a sensitive and low cost exhaled breath assay device for clinical applications. Functionalized Quartz Crystal Microbalance (QCM) is used as the sensing platform to identify and quantify various bio-markers in the exhaled breath. Heme-based receptors, organic receptors, etc., will be functionalized on the quartz crystal electrodes to obtain the finger print of the various bio-markers in the exhaled breath. Animal model studies (e.g. urban smoke inhalation injury) have been carried out to validate the developed sensor system. Subsequently, a prototype for portable exhaled breath devices is illustrated using the developed sensor system.
{"title":"Development of exhaled breath assay devices using Functionalized Quartz sensors","authors":"A.I. Palaniappan, T. Melissa, S. Moochhala, F. Tay, S. Mhaisalkar","doi":"10.1109/ICSENST.2008.4757081","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757081","url":null,"abstract":"This paper emphasizes on development of a sensitive and low cost exhaled breath assay device for clinical applications. Functionalized Quartz Crystal Microbalance (QCM) is used as the sensing platform to identify and quantify various bio-markers in the exhaled breath. Heme-based receptors, organic receptors, etc., will be functionalized on the quartz crystal electrodes to obtain the finger print of the various bio-markers in the exhaled breath. Animal model studies (e.g. urban smoke inhalation injury) have been carried out to validate the developed sensor system. Subsequently, a prototype for portable exhaled breath devices is illustrated using the developed sensor system.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"114 1","pages":"94-97"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79876664","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757133
Gong Runsheng, Huang Zhongyu, Shen Tao
Spectrum sensing has been identified as one of the greatly important functionalities, which avoids interference to primary users, by reliably detecting primary user signals in Cognitive Radio /Opportunistic Spectrum Access Networks. In this paper, an adaptive cooperative spectrum sensing scheme with a dual-topology configuration and feasible function framework is proposed for optimal sensing adaptability and practice feasibility. The centralized MAC Sensing Network aims at an efficient optimized parameter feedback while the coequal intercommunion PHY Sensing Network would get secure and facile spectrum sensing capability. The simplified function architecture of the network organized spectrum sensing model is given out. Based on the holistic assumption, a parallel processing channelized cooperation scheme is introduced and an agile holistic scanning strategy which could provide a list of idle holes at any moment is discussed. To reduce the system overhead, certain numbers sub-bands are considered as the periodically scanning target for locating the idle hole when the initial sensing stage is over. Two kinds of agile holistic scanning Scheme are considered to solve the proactive and reactive scanning problem. The simulation result indicates that the presented method performs well in improving the sensing efficiency and stability.
{"title":"Adaptive CRN spectrum sensing scheme with excellence in topology and scan scheduling","authors":"Gong Runsheng, Huang Zhongyu, Shen Tao","doi":"10.1109/ICSENST.2008.4757133","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757133","url":null,"abstract":"Spectrum sensing has been identified as one of the greatly important functionalities, which avoids interference to primary users, by reliably detecting primary user signals in Cognitive Radio /Opportunistic Spectrum Access Networks. In this paper, an adaptive cooperative spectrum sensing scheme with a dual-topology configuration and feasible function framework is proposed for optimal sensing adaptability and practice feasibility. The centralized MAC Sensing Network aims at an efficient optimized parameter feedback while the coequal intercommunion PHY Sensing Network would get secure and facile spectrum sensing capability. The simplified function architecture of the network organized spectrum sensing model is given out. Based on the holistic assumption, a parallel processing channelized cooperation scheme is introduced and an agile holistic scanning strategy which could provide a list of idle holes at any moment is discussed. To reduce the system overhead, certain numbers sub-bands are considered as the periodically scanning target for locating the idle hole when the initial sensing stage is over. Two kinds of agile holistic scanning Scheme are considered to solve the proactive and reactive scanning problem. The simulation result indicates that the presented method performs well in improving the sensing efficiency and stability.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"56 1","pages":"384-391"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83664786","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757099
Nga-Viet Nguyen, G. Shevlyakov, V. Shin
To solve the problem of distributed multisensor fusion, conventional fusion methods can be efficiently used in Gaussian noise models. In practice, the channel noise is usually non-Gaussian making those methods fail. A robust two-stage fusion algorithm based on the preliminary rejection of outliers in the data with the subsequent application of the conventional fusion method to the rest of the data is proposed. This fusion algorithm exhibits both high robustness in heavy contaminated Gaussian channel noise and good efficiency in nearly Gaussian channel noise both with small and large numbers of sensors.
{"title":"A robust two-stage multisensor fusion in contaminated Gaussian channel noise","authors":"Nga-Viet Nguyen, G. Shevlyakov, V. Shin","doi":"10.1109/ICSENST.2008.4757099","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757099","url":null,"abstract":"To solve the problem of distributed multisensor fusion, conventional fusion methods can be efficiently used in Gaussian noise models. In practice, the channel noise is usually non-Gaussian making those methods fail. A robust two-stage fusion algorithm based on the preliminary rejection of outliers in the data with the subsequent application of the conventional fusion method to the rest of the data is proposed. This fusion algorithm exhibits both high robustness in heavy contaminated Gaussian channel noise and good efficiency in nearly Gaussian channel noise both with small and large numbers of sensors.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"24 1","pages":"200-205"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84717715","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757094
Seunghyun Lee, Seungho Yoon, Hyoun-jin Kim, Youdan Kim
This paper presents the development of a wireless stereo vision system for a small rotary-wing unmanned aerial vehicle. A vision sensor enhances the navigation and guidance performance of the flight vehicle. A wireless stereo vision system was developed to minimize the size and weight of the payload. A ground image processing system was built to provide the position and distance to the targets such as a landing pad. The performance of the overall system was verified using a ground mobile testbed that simulates the yaw, pitch, forward, and descending motions of a helicopter.
{"title":"Wireless stereo vision system development for rotary-wing UAV guidance and control","authors":"Seunghyun Lee, Seungho Yoon, Hyoun-jin Kim, Youdan Kim","doi":"10.1109/ICSENST.2008.4757094","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757094","url":null,"abstract":"This paper presents the development of a wireless stereo vision system for a small rotary-wing unmanned aerial vehicle. A vision sensor enhances the navigation and guidance performance of the flight vehicle. A wireless stereo vision system was developed to minimize the size and weight of the payload. A ground image processing system was built to provide the position and distance to the targets such as a landing pad. The performance of the overall system was verified using a ground mobile testbed that simulates the yaw, pitch, forward, and descending motions of a helicopter.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"58 1","pages":"168-173"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91352499","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757074
B.S. Binu, Z. Guowu, V. Iyer, V. Jayashankar
In CCD based imaging systems operating in multiple output taps (channels), electronic channel crosstalk is a major issue that limits the image quality. We propose characterisation of crosstalk in a high speed image acquisition system that employs multi-tap CCD as the imaging sensor. The characterisation is performed by analysing imaged test patterns in frame mode. These test patterns are formed based on the analog signal flow architecture of the sensor and image acquisition system. Test patterns imaged from a high resolution monochrome monitor are analysed to observe and quantify crosstalk on every channel. This pattern image based approach formulated in a hierarchical manner can be applied to characterise crosstalk for any multi-port, multi-plane sensor configuration of high speed imaging systems.
{"title":"A pattern image based approach for characterising electronic crosstalk in high speed charge coupled devices","authors":"B.S. Binu, Z. Guowu, V. Iyer, V. Jayashankar","doi":"10.1109/ICSENST.2008.4757074","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757074","url":null,"abstract":"In CCD based imaging systems operating in multiple output taps (channels), electronic channel crosstalk is a major issue that limits the image quality. We propose characterisation of crosstalk in a high speed image acquisition system that employs multi-tap CCD as the imaging sensor. The characterisation is performed by analysing imaged test patterns in frame mode. These test patterns are formed based on the analog signal flow architecture of the sensor and image acquisition system. Test patterns imaged from a high resolution monochrome monitor are analysed to observe and quantify crosstalk on every channel. This pattern image based approach formulated in a hierarchical manner can be applied to characterise crosstalk for any multi-port, multi-plane sensor configuration of high speed imaging systems.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"28 1","pages":"63-67"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78734289","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757079
Ming-Yu Lin, Yu-Wei Chang, Yu-Ting Tai, Yuh-Shyong Yang, Yang-Tung Huang
Colorimetric, in situ, isothermal rolling circle amplification (RCA)-based biosensor was developed as a novel, versatile nucleic acid-based amplification machine for platelet-derived growth factor (PDGF) detection. This antibody-free biosensor utilized nucleic acids immobilized on the plate and DNA aptamers to capture the target protein. As compared to the conventional fluorescence measurement [1], the reported colorimetric method can facilitate the development of RCA biosensors in a high sensitive, cost-less optoelectronic detection system. Our data indicates that the colorimetric RCA assay was able to detect PDGF 0.32 nM and showed a good linear correlation between PDGF concentration and absorbance with correlation coefficient of 0.99.
{"title":"High sensitive, colorimetric, isothermal nucleic acids amplification: A versatile platform for protein biosensors","authors":"Ming-Yu Lin, Yu-Wei Chang, Yu-Ting Tai, Yuh-Shyong Yang, Yang-Tung Huang","doi":"10.1109/ICSENST.2008.4757079","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757079","url":null,"abstract":"Colorimetric, in situ, isothermal rolling circle amplification (RCA)-based biosensor was developed as a novel, versatile nucleic acid-based amplification machine for platelet-derived growth factor (PDGF) detection. This antibody-free biosensor utilized nucleic acids immobilized on the plate and DNA aptamers to capture the target protein. As compared to the conventional fluorescence measurement [1], the reported colorimetric method can facilitate the development of RCA biosensors in a high sensitive, cost-less optoelectronic detection system. Our data indicates that the colorimetric RCA assay was able to detect PDGF 0.32 nM and showed a good linear correlation between PDGF concentration and absorbance with correlation coefficient of 0.99.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"114 1","pages":"86-89"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77174269","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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