A ring sensor system for the determination of volume and axis measurements of irregular objects

In contemporary bioanalysis, monitoring the antioxidant activity (AOA) of the human skin is used to assess stresses, nutrition, cosmetics, and certain skin diseases. Non-invasive methods for skin AOA monitoring have certain advantages over invasive methods, namely cost-effectiveness, lower labor intensity, reduced risk of infection, and obtaining results in the real-time mode. This study presents a new flexible potentiometric sensor system (FPSS) for non-invasive determination of the human skin AOA, which is based on flexible film electrodes (FFEs) and membrane containing a mediator ([Fe(CN)6]3–/4–). Low-cost available materials and scalable technologies were used for FFEs manufacturing. The indicator FFE was fabricated based on polyethylene terephthalate (PET) film and carbon veil (CV) by single-sided hot lamination. The reference FFE was fabricated based on PET film and silver paint by using screen printing, which was followed by the electrodeposition of precipitate containing a mixture of silver chloride and silver ferricyanide (SCSF). The three-electrode configuration of the FPSS, including two indicator FFEs (CV/PET) and one reference FFE (SCSF/Ag/PET), has been successfully used for measuring the skin AOA and evaluating the impact of phytocosmetic products. FPSS provides reproducible (RSD ≤ 7%) and accurate (recovery of antioxidants is almost 100%) results, which allows forecasting its broad applicability in human skin AOA monitoring as well as for evaluating the effectiveness of topically and orally applied antioxidants.

Download Full-text

Real time robotic tactile sensor system for the determination of the physical properties of biomaterials

Sensors and Actuators A Physical ◽

10.1016/j.sna.2004.01.038 ◽

2004 ◽

Vol 112 (2-3) ◽

pp. 278-285 ◽

Cited By ~ 93

Author(s):

Sadao Omata ◽

Yoshinobu Murayama ◽

Christos E. Constantinou

Keyword(s):

Physical Properties ◽

Real Time ◽

Tactile Sensor ◽

Sensor System

Download Full-text

Enzyme sensor system for determination of total cholesterol in fish plasma

Fisheries Science ◽

10.1111/j.0919-9268.2003.00745.x ◽

2003 ◽

Vol 69 (6) ◽

pp. 1194-1199 ◽

Cited By ~ 14

Author(s):

Hideaki ENDO ◽

Masashi MAITA ◽

Mio TAKIKAWA ◽

Huifeng REN ◽

Tetsuhito HAYASHI ◽

...

Keyword(s):

Total Cholesterol ◽

Sensor System ◽

Enzyme Sensor

Download Full-text

Design of a low cost sensor system for the determination of the number of somatic cells in milk using bioluminescence analysis

Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066] ◽

10.1109/imtc.2000.846851 ◽

2002 ◽

Cited By ~ 2

Author(s):

F.J. Ferrero ◽

J.C. Campo ◽

J.C. Anton

Keyword(s):

Low Cost ◽

Somatic Cells ◽

Sensor System

Download Full-text

Determination of dehydroascorbic acid by an enzyme sensor system with a parallel flow cell

Biosensors and Bioelectronics ◽

10.1016/0956-5663(94)90012-4 ◽

1994 ◽

Vol 9 (7) ◽

pp. 501-507 ◽

Cited By ~ 1

Author(s):

Hideaki Endo ◽

Chikako Matsunaga ◽

Masakazu Hoshi ◽

Tetsuhito Hayashi ◽

Rikuo Takai ◽

...

Keyword(s):

Dehydroascorbic Acid ◽

Flow Cell ◽

Parallel Flow ◽

Sensor System ◽

Enzyme Sensor

Download Full-text

Design of a low-cost sensor system for the determination of the number of somatic cells in milk using bioluminescence analysis

IEEE Transactions on Instrumentation and Measurement ◽

10.1109/19.997831 ◽

2002 ◽

Vol 51 (2) ◽

pp. 320-325 ◽

Cited By ~ 5

Author(s):

F.J. Ferrero Martin ◽

J.C. Campo Rodriguez ◽

M.A. Perez Garcia ◽

J.C. Alvarez Anton ◽

C. Blanco Viejo ◽

...

Keyword(s):

Low Cost ◽

Somatic Cells ◽

Sensor System

Download Full-text

An intelligent sensor system for the determination of ammonia using flow injection analysis

Laboratory Automation & Information Management ◽

10.1016/s1381-141x(97)00004-x ◽

1997 ◽

Vol 33 (1) ◽

pp. 17-27 ◽

Cited By ~ 9

Author(s):

Christopher W.K. Chow ◽

David E. Davey ◽

Dennis E. Mulcahy

Keyword(s):

Flow Injection ◽

Flow Injection Analysis ◽

Sensor System ◽

Intelligent Sensor

Download Full-text

Determination of fat content in goat milk using annular photoelectric sensor system

Transactions of the Institute of Measurement and Control ◽

10.1177/0142331216652216 ◽

2016 ◽

Vol 40 (1) ◽

pp. 102-110 ◽

Cited By ~ 1

Author(s):

Xingyue Zhu ◽

Zhimin Zhao ◽

Wenjie Zhang

Keyword(s):

Measurement Errors ◽

Diffuse Reflection ◽

Goat Milk ◽

Optical Parameter ◽

Fat Content ◽

Sensor System ◽

The Standard Model ◽

Photoelectric Sensor ◽

High Prediction

In this paper, a new method for quantitative determination of fat content in goat milk at room temperature (25°C), based on the annular photoelectric sensor system, has been developed. The measurement system consists of an annular photoelectric sensor, thermoelectric cooler (TEC), amplifier, A/D converter, microprocessor and other components. Based on Mie theory, the diffuse reflection light intensity is adopted as the optical parameter representing the fat content in goat milk. In this way, the standard model of the system can be established and loaded into the processor to realize data acquisition, processing and output. The proposed method has been tested on goat milk samples with variable fat content in the prediction experiment. The results show that the fitting equation is y=−0.366 x+0.295 ( R2=0.987) and measurement errors are within ±3%, which indicates that the presented method has high prediction performance and can measure the fat content in goat milk accurately and in real time.

Download Full-text