Green One-Step Strategy of Conductive Ink for Active Health Monitoring in Rehabilitation and Early Care

Siyi Bi; Wenqing Hai; Lianping Wang; Ke Xu; Qian Chen; Chunhui Chen; Qinghua Yu; Chao Chen; Minghao Li; Huiqi Shao; Guangwei Shao; Jinhua Jiang; Nanliang Chen

doi:10.1021/acsami.3c12851

Green One-Step Strategy of Conductive Ink for Active Health Monitoring in Rehabilitation and Early Care

ACS Appl Mater Interfaces. 2023 Dec 4. doi: 10.1021/acsami.3c12851. Online ahead of print.

Authors

Siyi Bi^{1

2

3}, Wenqing Hai^{1

2

3}, Lianping Wang⁴, Ke Xu⁵, Qian Chen⁶, Chunhui Chen^{1

2

3}, Qinghua Yu^{1

2

3}, Chao Chen^{1

2

3}, Minghao Li^{1

2

3}, Huiqi Shao^{1

7

3}, Guangwei Shao^{1

2

3}, Jinhua Jiang^{1

2

3}, Nanliang Chen^{1

2

3}

Affiliations

¹ Shanghai Frontier Science Research Center for Modern Textiles, College of Textiles, Donghua University, Shanghai 201620, China.
² College of Textiles, Donghua University, Shanghai 201620, China.
³ Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, China.
⁴ Chenfeng Group Co., Ltd., Changzhou 213000, China.
⁵ Department of Rehabilitation Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200030, China.
⁶ Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200030, China.
⁷ Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China.

PMID: 38047560
DOI: 10.1021/acsami.3c12851

Abstract

Conductive ink deposited on flexible substrates through simple methods such as dyeing or printing is one of the most promising approaches for scalable fabrication of wearable electronics. However, excessive chemical additives or a complex preparation process has limited the practical applications of conductive inks. Herein, a highly stable and antibacterial AgNPs/CNT/rGO (SACR) conductive ink with the only assistance of sustainable silk sericin (SS) is developed through a green one-step strategy. SS functions as not only the reductant of silver ions and GO by donating electrons but also the dispersant and stabilizer of CNTs through strong noncovalent interactions. The universality of SACR ink is demonstrated by depositing on various flexible substrates through handwriting, screen-printing, and dyeing techniques; meanwhile, the mechanical reliability between SACR ink and substrates is validated by peeling, bending, and twisting measurements. In addition, the synergistic effects of the multilevel hierarchical 0D/1D/2D structure and abundant interfacial interactions in SACR ink are advantageous to enhancing sensing performance. An SACR ink-based strain sensor and hydrogen peroxide (H₂O₂) sensor are fabricated to detect physical and biochemical indicators, demonstrating the enormous potential of SACR ink in intelligent wearables for active health monitoring in early care.

Keywords: H2O2 sensor; active health; conductive ink; silk sericin; strain sensor.