Pre-stressed FRP-Strengthening and Wireless Monitoring of a Metallic Bridge in Australia

This paper proposes a combined strategy of using paper-based competitive immunochromatography and a near field communication (NFC) tag for wireless cotinine determination. The glucose oxidase labeled cotinine antibody specifically binds free cotinine in a sample, whereas the unoccupied antibody attached to BSA-cotinine at the test line on a lateral flow strip. The glucose oxidase on the strip and an assistant pad in the presence of glucose generated H2O2 and imposed the Ag oxidation on the modified electrode. This enabled monitoring of immunoreaction by either electrochemical measurement or wireless detection. Wireless sensing was realized for cotinine in the range of 100–1000 ng/mL (R2 = 0.96) in PBS medium. Undiluted urine samples from non-smokers exhibited an Ag-oxidation rate three times higher than the smoker’s urine samples. For 1:8 diluted urine samples (smokers), the proposed paper-based competitive immunochromatography coupled with an enzyme-modified electrode differentiated positive and negative samples and exhibited cotinine discrimination at levels higher than 12 ng/mL. This novel sensing platform can potentially be combined with a smartphone as a reader unit.

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On the Wireless Microwave Sensing of Bacterial Membrane Potential in Microfluidic-Actuated Platforms

Sensors ◽

10.3390/s21103420 ◽

2021 ◽

Vol 21 (10) ◽

pp. 3420

Author(s):

Marc Jofre ◽

Lluís Jofre ◽

Luis Jofre-Roca

Keyword(s):

Membrane Potential ◽

Living Cells ◽

Membrane Potentials ◽

Electromagnetic Properties ◽

Bacterial Membrane ◽

Microfluidic Platforms ◽

Bacterial Membranes ◽

Wireless Monitoring ◽

Bacterial Dynamics ◽

Engineered Systems

The investigation of the electromagnetic properties of biological particles in microfluidic platforms may enable microwave wireless monitoring and interaction with the functional activity of microorganisms. Of high relevance are the action and membrane potentials as they are some of the most important parameters of living cells. In particular, the complex mechanisms of a cell’s action potential are comparable to the dynamics of bacterial membranes, and consequently focusing on the latter provides a simplified framework for advancing the current techniques and knowledge of general bacterial dynamics. In this work, we provide a theoretical analysis and experimental results on the microwave detection of microorganisms within a microfluidic-based platform for sensing the membrane potential of bacteria. The results further advance the state of microwave bacteria sensing and microfluidic control and their implications for measuring and interacting with cells and their membrane potentials, which is of great importance for developing new biotechnologically engineered systems and solutions.

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A wireless monitoring system for comparison photovoltaic and photovoltaic thermal characteristics

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/602/1/012027 ◽

2019 ◽

Vol 602 ◽

pp. 012027

Author(s):

Krismadinata ◽

R Lapisa ◽

Asnil

Keyword(s):

Monitoring System ◽

Thermal Characteristics ◽

Wireless Monitoring

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A Wearable Optical Microfibrous Biomaterial with Encapsulated Nanosensors Enables Wireless Monitoring of Oxidative Stress

Advanced Functional Materials ◽

10.1002/adfm.202006254 ◽

2021 ◽

pp. 2006254

Author(s):

Mohammad Moein Safaee ◽

Mitchell Gravely ◽

Daniel Roxbury

Keyword(s):

Oxidative Stress ◽

Wireless Monitoring

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Design and Implementation of Wireless Voltage Monitoring System Based on Zigbee

International Journal of Information Technology and Web Engineering ◽

10.4018/ijitwe.2017070108 ◽

2017 ◽

Vol 12 (3) ◽

pp. 83-96 ◽

Cited By ~ 1

Author(s):

Luo Xiaohui

Keyword(s):

Monitoring System ◽

Single Phase ◽

Low Cost ◽

Moving Average ◽

Voltage Sensor ◽

Wireless Transmission ◽

Phase Voltage ◽

Medium Voltage ◽

Wireless Monitoring ◽

Three Phase

This paper proposed a low cost wireless monitoring system based on ZigBee wireless transmission, and designed a new floating voltage sensor which is suitable for the monitoring of medium voltage and high voltage(MV/HV) public equipment. The system used TI-CC2530 as the controller, proposed a new moving average voltage sensing(MAVS) algorithm by reasonable assumptions, and adopted algorithms to perform the theoretical analysis for the single phase and three-phase voltage. At last, the author carried out a practical experiment on the wireless floating voltage sensor under the voltage up to 30kV, the experimental results showed that the proposed low cost wireless sensor can achieve a good voltage monitoring function, and the error is less than 3%.

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