2014 IEEE 9th IberoAmerican Congress on Sensors最新文献_第3页

TEOS plasma polymerized films: Impact of clustered material in humidity measurement TEOS等离子体聚合膜:聚集材料在湿度测量中的影响

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995509

L. Hernandez, M. L. P. Da Silva, R. R. Lima, V. F. Cardoso

引用次数: 0

Simulation of a PVDF transducer array using the finite element method (FEM) to measure temperature gradients in a soft tissue 用有限元法模拟PVDF传感器阵列测量软组织温度梯度

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995530

M. Vazquez, Rodolfo Petrearce, J. Duran, P. Acevedo

引用次数: 0

Development of an optical sensor for rapid and automatic gram classification of microorganisms 用于微生物快速自动克数分类的光学传感器的研制

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995522

A. Hilding Ohlsson, M. C. Bonetto, N. Sacco, E. Cortón

引用次数: 0

Sensor based state estimation for: Stirred tank reactors in chemical industry and for PMUs in angle controlled power systems 基于传感器的状态估计:化工搅拌槽反应器和角控电力系统中pmu的状态估计

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995553

Carlos M. Florez, Juan Villa

引用次数: 0

Rapid and label-free differentiation of bacterial strains using low frequency electrochemical impedance spectroscopy 利用低频电化学阻抗谱快速、无标记地鉴别细菌菌株

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995516

M. C. Bonetto, N. Sacco, A. Hilding Ohlsson, E. Cortón, D. Sticker, V. Charwat, P. Ertl

{"title":"Rapid and label-free differentiation of bacterial strains using low frequency electrochemical impedance spectroscopy","authors":"M. C. Bonetto, N. Sacco, A. Hilding Ohlsson, E. Cortón, D. Sticker, V. Charwat, P. Ertl","doi":"10.1109/IBERSENSOR.2014.6995516","DOIUrl":"https://doi.org/10.1109/IBERSENSOR.2014.6995516","url":null,"abstract":"Microinterdigitated electrode structures (μIDES) have widely been used for electrochemical cell impedance spectroscopy (ECIS). For instance ECIS has been used to study biofilm formation and growth of a wide range of microorganisms to detect bacterial infections, food contaminations, biocorrosion, and biofouling. In this study we describe the development of a label-free bioassay to determine the presence of different bacteria strains using ECIS. Following initial characterization of embedded gold μIDES using solutions of increasing conductivities, impedance spectra ranging from 10Hz to 300 kHz in the presence of Bacillus subtilis DMS10 and Shewanella oneidensis MR-1 were recorded over a period of approx. 5 hours. Frequency analysis showed that at 30 Hz the impedance response differences were higher and the relative standard deviations were smaller between each strain and the medium. In contrast to standard cell impedance sensing, which is performed at frequencies higher than 10 kHz to detect cell membrane polarizations, our low frequency results indicate that ionic changes at the electrode-solution double layer (Cdt) resulting by individual bacterial metabolism, can also be used to non-invasively and label-free differentiate microorganisms.","PeriodicalId":296271,"journal":{"name":"2014 IEEE 9th IberoAmerican Congress on Sensors","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125140140","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}

引用次数: 4

Domestic multisensory portable system application for general biometric diagnostic 国内多传感便携式系统应用于一般生物识别诊断

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995555

M. C. John, Barbosa P. Natalia

引用次数: 0

Advances in the development of a piezoelectric immunosensor for the detection of a tuberculosis biomarker 检测结核生物标志物的压电免疫传感器的研究进展

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995535

M. Jaramillo, P. A. Marin, R. A. Torres, E. Pabón, Y. Montagut, J. Robledo, M. Moreno, J. J. Manclús, Á. Montoya

{"title":"Advances in the development of a piezoelectric immunosensor for the detection of a tuberculosis biomarker","authors":"M. Jaramillo, P. A. Marin, R. A. Torres, E. Pabón, Y. Montagut, J. Robledo, M. Moreno, J. J. Manclús, Á. Montoya","doi":"10.1109/IBERSENSOR.2014.6995535","DOIUrl":"https://doi.org/10.1109/IBERSENSOR.2014.6995535","url":null,"abstract":"The progress in the development of a piezoelectric immunosensor for the detection of a secretion protein (38 kDa) from Mycobacterium tuberculosis are described. A high affinity and specificity monoclonal antibody was obtained from a recombinant form of the target protein. This immunoreagent was employed for the development of a competitive ELISA, as a previous diagnostic test and reference assay for the characterization of the future biosensor. The ELISA detection limit was 14 ng/mL of the 38kDa antigen. The first experimental approach to the piezoelectric immunosensor was undertaken using bovine serum albumin (BSA) as a model antigen and 10 MH piezoelectric crystals as the biosensor transducer element. The obtained results show that high frequency crystals (≥ 100 MHz) should be used in order to reach the high sensitivity required for diagnostic purposes. These crystals would allow obtaining high and stable assay signals using very low protein concentrations for crystal functionalization, thus enhancing immunosensor sensitivity. Preliminary experiments have proved the successful and efficient immobilization of the 38 kDa antigen on high fundamental frequency (HFF) crystals (100 MHz). Moreover, the functionalized surface seems to be able to selectively bind the monoclonal antibody specific to the target antigen.","PeriodicalId":296271,"journal":{"name":"2014 IEEE 9th IberoAmerican Congress on Sensors","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128841497","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}

引用次数: 1

Chitosan-au nanocomposite: Preliminary studies of its potential application in electrochemical sensors 壳聚糖-金纳米复合材料:电化学传感器应用前景的初步研究

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995552

Edna Melissa Valenzuela Acosta, O. A. de Fuentes, Y. Prokhorov, J. Gabriel Luna Barcenas

引用次数: 1

Auto-adjustable low-signal processing technique based on programmable mixed-signal SoCs 基于可编程混合信号soc的自调低信号处理技术

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995518

J. Cabrera-Lopez, C. A. Romero-Beltrán

{"title":"Auto-adjustable low-signal processing technique based on programmable mixed-signal SoCs","authors":"J. Cabrera-Lopez, C. A. Romero-Beltrán","doi":"10.1109/IBERSENSOR.2014.6995518","DOIUrl":"https://doi.org/10.1109/IBERSENSOR.2014.6995518","url":null,"abstract":"Today several electronic applications are demanding linear ICs that operate on a single supply rail, with the same performance of dual supply parts. Power consumption is now the key parameter for those battery operated systems and in some instances, more important than cost. In fact, through the effort of the manufacturers, doing more with less, is possible to find notable performance OpAmp's; parameters such as the offset voltage, leakage current and the precision of the gain are increasingly improved. In addition, in applications where the low-signal processing is required, as in many of the applications above described; in some cases the use of reconfigurable circuits is necessary to improve and highlight the performance of these OpAmp's. Then, the performance of a stage can be improve on the fly. This paper presents a design approach for amplification and active filter stages, with auto adjustable features, for signal processing greater than 100 mV and up to 1 KHz. The proposed approach uses a successive approximation algorithm for setting gain stages, and algorithms based on Wavelets-Mallat discrete thresholding and power spectral density of the signal for tuning the active filters. Its implementation based on a reconfigurable mixed-signal circuit, PSoC1, is also presented and validated. The results show that the proposed helps to improve the dynamic range and SNR of a signal, without the need to redesign and implementation processes of these stages, very commons in low-signal processing. These implementation can be used in applications where signals with the above conditions, need to be conditioned. For example: biomedical and semiconductor sensor signals.","PeriodicalId":296271,"journal":{"name":"2014 IEEE 9th IberoAmerican Congress on Sensors","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122707395","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}

引用次数: 4

Photonic lab-on-a-chip with environmental light correction for in situ determination of enteric pathogen contamination 带有环境光校正的光子芯片实验室，用于肠道病原体污染的原位测定

2014 IEEE 9th IberoAmerican Congress on Sensors Pub Date : 2014-12-29 DOI: 10.1109/IBERSENSOR.2014.6995563

P. Giménez-Gómez, Jordi Sacristan-Riquelme, F. Pujol-Vila, N. Santamaria, N. Vigués, C. Jiménez-Jorquera, J. Mas, X. Muñoz‐Berbel

引用次数: 0