scholarly journals Recent Advances in Skin Chemical Sensors

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4376 ◽  
Author(s):  
Benoît Piro ◽  
Giorgio Mattana ◽  
Vincent Noël
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Sensors ◽  
Biological Fluid ◽  
Fluid Collection ◽  
Skin Wounds ◽  
Future Developments ◽  
Volatile Organic ◽  
Skin Conditions ◽  
And Storage

This review summarizes the latest developments in the field of skin chemical sensors, in particular wearable ones. Five major applications are covered in the present work: (i) sweat analysis, (ii) skin hydration, (iii) skin wounds, (iv) perspiration of volatile organic compounds, and (v) general skin conditions. For each application, the detection of the most relevant analytes is described in terms of transduction principles and sensor performances. Special attention is paid to the biological fluid collection and storage and devices are also analyzed in terms of reusability and lifetime. This review highlights the existing gaps between current performances and those needed to promote effective commercialization of sensors; future developments are also proposed.

Stability of volatile organic compounds in environmental water samples during transport and storage

1990 ◽  
Vol 24 (11) ◽  
pp. 1665-1670 ◽  
Author(s):  
Michael P. Maskarinec ◽  
Lynne H. Johnson ◽  
Susan K. Holladay ◽  
Ronnie L. Moody ◽  
Charles K. Bayne ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Water Samples ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Volatile Organic ◽  
And Storage

Materials Design of Sensing Layers for Detection of Volatile Analytes

2012 ◽  
pp. 183-198
Author(s):  
Mutsumi Kimura ◽  
Tadashi Fukawa ◽  
Tsuyoshi Ikehara ◽  
Takashi Mihara
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Sensors ◽  
Recent Progress ◽  
Materials Design ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Sensitivity And Selectivity

The authors developed highly sensitive sensing layers for detection of Volatile Organic Compounds (VOCs) by using polymeric nanomaterials. In this chapter, they describe their recent progress on the design of polymeric sensing layers for the chemical sensors. The nanostructures of polymeric sensing layer strongly influenced the sensitivity and selectivity for VOCs sensings.

scholarly journals Evaluation of a Hypercrosslinked Polystyrene, MN-200, as a Sorbent for the Preconcentration of Volatile Organic Compounds in Air

2000 ◽  
Vol 83 (3) ◽  
pp. 579-583 ◽  
Author(s):  
Maria P Baya ◽  
Panayotis A Siskos ◽  
Vadim A Davankov
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Polar Compounds ◽  
Average Percentage ◽  
Volatile Organic ◽  
Specific Retention Volumes ◽  
Specific Retention ◽  
Retention Volumes ◽  
And Storage ◽  
Indoor And Outdoor

Abstract Breakthrough volumes, average percentage recoveries, and storage stabilities were obtained for vapors of 8 volatile organic compounds (pentane, octane, undecane, isooctane, cyclohexane, toluene, methanol, and dichloromethane) on a new adsorbent material, Hypersol-Macronet, MN-200. Breakthrough volumes were estimated as half of the gas chromatographic specific retention volumes at 20°C for the compounds. Recoveries of the adsorbates were determined by both solvent extraction and thermal desorption methods. The results obtained compare favorably with those for Tenax GR (values reported in the published literature and others obtained in our laboratory). Results of storage stability studies on MN-200 meet the criterion for acceptability (<10% loss). High adsorption capacity for very volatile and polar compounds, combined with ease of desorption of less volatile compounds, render MN-200 a highly promising adsorbent for sampling volatile organic compounds in indoor and outdoor air.

scholarly journals Cross-Linked Nanoparticle Membranes for Microelectromechanical Chemical Sensors and Pressure Sensors

Proceedings ◽  
2019 ◽  
Vol 2 (13) ◽  
pp. 821
Author(s):  
Hendrik Schlicke ◽  
Hauke Hartmann ◽  
Sophia Caroline Bittinger ◽  
Matthias Rebber ◽  
Malte Behrens ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Sensors ◽  
Pressure Sensors ◽  
Static Deflection ◽  
Frequency Shifts ◽  
Electrostatically Actuated ◽  
Highly Sensitive ◽  
Volatile Organic

We present novel microelectromechanical chemical sensors for the detection of volatile organic compounds based on electrostatically actuated, nanometer-thin, freestanding membranes of organically cross-linked gold nanoparticles. The sensors employ quasi-static deflection amplitudes or resonance frequency shifts of the membranes as highly sensitive sensing signals and are capable of detecting analytes at concentrations down to the low ppm range. We show that the devices can further be utilized for analyte discrimination. Additionally, we demonstrate that freestanding GNP membranes can be used for the fabrication of highly sensitive resistive pressure sensors.

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