Siloxene‐Functionalized Laser‐Induced Graphene via COSi Bonding for High‐Performance Heavy Metal Sensing Patch Applications

Here, 2D Siloxene nanosheets are newly applied to functionalize porous laser‐induced graphene (LIG) on polydimethylsiloxane, modify the surface chemical properties of LIG, and improve the heterogeneous electron transfer rate. Meanwhile, the newly generated COSi crosslink boosts the binding of LIG...

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Vydáno v:Small (Weinheim an der Bergstrasse, Germany) Ročník 18; číslo 25; s. e2201247 - n/a
Hlavní autoři: Hui, Xue, Sharma, Sudeep, Sharifuzzaman, Md, Zahed, Md Abu, Shin, Young Do, Seonu, Soo Kyeong, Song, Hye Su, Park, Jae Yeong
Médium: Journal Article
Jazyk:angličtina
Vydáno: Germany Wiley Subscription Services, Inc 01.06.2022
Témata:
C O Si bonds
Carbon nanotubes
Chemical properties
Copper
Correlation coefficients
Electrode materials
Electron transfer
flexible hybrid perspiration sensors
Graphene
Heavy metals
Ion detectors
Nanotechnology
noninvasive Cu ions detection
Perspiration
pH calibration
Polyanilines
Polydimethylsiloxane
Sensitivity
Sensors
Siloxene‐functionalized laser‐induced graphene
Skin temperature
Temperature sensors
flexible hybrid perspiration sensors
noninvasive Cu ions detection
Siloxene-functionalized laser-induced graphene
pH calibration
C O Si bonds
ISSN:1613-6810, 1613-6829, 1613-6829
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Shrnutí:Here, 2D Siloxene nanosheets are newly applied to functionalize porous laser‐induced graphene (LIG) on polydimethylsiloxane, modify the surface chemical properties of LIG, and improve the heterogeneous electron transfer rate. Meanwhile, the newly generated COSi crosslink boosts the binding of LIG and Siloxene. Thus, the Siloxene/LIG composite is used as the basic electrode material for the multifunctional detection of copper (Cu) ions, pH, and temperature in human perspiration. Moreover, to enhance the sensing performance of Cu ions, Siloxene/LIG is further modified by carbon nanotubes (CNTs). The fabricated Siloxene‐CNT/LIG‐based Cu‐ion sensor shows linear response within a wide range of 10–500 ppb and a low detection limit of 1.55 ppb. In addition, a pH sensor is integrated to calibrate for determining the accurate concentration of Cu ions due to pH dependency of the Cu‐ion sensor. The polyaniline‐deposited pH sensor demonstrates a good sensitivity of −64.81 mV pH−1 over the pH range of 3–10. Furthermore, a temperature sensor for accurate skin temperature monitoring is also integrated and exhibits a stable linear resistance response with an excellent sensitivity of 9.147 Ω °C−1 (correlation coefficient of 0.139% °C−1). The flexible hybrid sensor is promising in applications of noninvasive heavy‐metal ion detection and prediction of related diseases. A flexible hybrid sensor based on Siloxene/LIG is newly developed for the noninvasive and accurate detection of Cu ions, pH, and temperature simultaneously. The laser‐induced graphene/polydimethylsiloxane is decorated with Siloxene‐based materials via a newly generated COSi bond to ultimately functionalize the electrodes into different sensors for multiple analyses of human perspiration.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1613-6810
1613-6829
1613-6829
DOI:10.1002/smll.202201247