期刊
INTERNATIONAL JOURNAL OF BIOPRINTING
卷 8, 期 1, 页码 41-49出版社
WHIOCE PUBL PTE LTD
DOI: 10.18063/ijb.v8i1.447
关键词
Smart patch; Wound management; pH sensor; Hydration sensor; Flexible electronics; Printed electronics
资金
- Dean Start-up grant, Science and Technology, Aarhus University, Denmark
This study presents a low-cost, flexible patch sensor that can measure the change in pH and fluid content in a wound. By printing different electrodes on the skin, the sensor has high sensitivity and can be easily incorporated in a wound dressing.
Wound healing is a complex and dynamic regeneration process, wherein the physical and chemical parameters are continuously changing. Its management and monitoring can provide immense benefits, especially for bed-ridden patients. This work reports a low-cost, flexible, and fully printed on-skin patch sensor to measure the change in pH and fluid content in a wound. Such a bendable sensor can also be easily incorporated in a wound dressing. The sensor consists of different electrodes printed on polydimethylsiloxane (PDMS) substrate for pH and moisture sensing. The fabricated sensor patch has a sensitivity of 7.1 ohm/pH for wound pH levels. The hydration sensor results showed that moisture levels on a semi-porous surface can be quantified through resistance change.
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