Flexible printed circuit boards(FPCBs)play crucial roles in wearable electronics.FPCB-based sensors can be easily integrated into motion capture systems to detect and digitize human movements.However,non-conformity be...Flexible printed circuit boards(FPCBs)play crucial roles in wearable electronics.FPCB-based sensors can be easily integrated into motion capture systems to detect and digitize human movements.However,non-conformity between sensors and human skin leads to signal distortion and motion artifacts.Herein,a polydimethylsiloxane-(Z)-sorbitan mono-9-octadecenote(PDMS-Span 80)adhesive film is developed to connect and co-deform the FPCB-based bending sensor with human skin.The PDMS-Span 80 adhesive film demonstrates a high adhesive(a higher adhesion force of 38.0 kPa),reusability(over 300 cycles),long-term stability(over 20 d),and robustness(high tolerance to washing and high temperatures).Meanwhile,the adhesive film can be stripped by a low peeling strength without skin damage and shows relatively better biocompatibility with skin.Specifically,combining the high adhesive,larger stretchability,and elasticity,and skin-like elasticity modulus,the adhesive film can co-deform with human skin.With the assistance of the PDMS-Span 80 adhesive film,the FPCB-based bending sensor not only possesses exceptional responsiveness,reliability,and durability but also eliminates the overshoot phenomenon when responding to the deformation of the skin.Successful application in a full-body motion capture for the digital twin of Chinese Kungfu demonstrated the great application promise of PDMS-Span 80 adhesive film.展开更多
基金supported by the Innovation and Strong School Engineering Fund of Guangdong Province(Grant No.2025KCXTD047)the Guangdong Engineering Technology Research Center(Grant No.2021J020)+2 种基金the Natural Science Foundation of Guangdong Province(Grant No.2021A1515011935)the National Natural Science Foundation of China(Grant No.12004285)the Hong Kong and Macao Joint Research and Development Fund of Wuyi University(Grant No.2019WGALH17)。
文摘Flexible printed circuit boards(FPCBs)play crucial roles in wearable electronics.FPCB-based sensors can be easily integrated into motion capture systems to detect and digitize human movements.However,non-conformity between sensors and human skin leads to signal distortion and motion artifacts.Herein,a polydimethylsiloxane-(Z)-sorbitan mono-9-octadecenote(PDMS-Span 80)adhesive film is developed to connect and co-deform the FPCB-based bending sensor with human skin.The PDMS-Span 80 adhesive film demonstrates a high adhesive(a higher adhesion force of 38.0 kPa),reusability(over 300 cycles),long-term stability(over 20 d),and robustness(high tolerance to washing and high temperatures).Meanwhile,the adhesive film can be stripped by a low peeling strength without skin damage and shows relatively better biocompatibility with skin.Specifically,combining the high adhesive,larger stretchability,and elasticity,and skin-like elasticity modulus,the adhesive film can co-deform with human skin.With the assistance of the PDMS-Span 80 adhesive film,the FPCB-based bending sensor not only possesses exceptional responsiveness,reliability,and durability but also eliminates the overshoot phenomenon when responding to the deformation of the skin.Successful application in a full-body motion capture for the digital twin of Chinese Kungfu demonstrated the great application promise of PDMS-Span 80 adhesive film.
