1：Experimental Design and Method Selection:

The study uses a one-step displacement reaction to synthesize Ag nanodendrites (NDs), formulates conductive ink with SIS binder and Disponer 904S dispersant, and employs screen printing for fabrication. The methodology includes thixotropy and contact angle tests to assess printability, and various characterizations to evaluate sensor performance.

2：Sample Selection and Data Sources:

Materials include copper foil, AgNO3, PVP, xylenes, ethanol, HCl, SIS, and Disponer 904S. Nitrile rubber is used as the substrate after cleaning. Data are collected from SEM, TEM, XRD, rheometer, contact angle meter, resistance tester, and stretching tests.

3：4S. Nitrile rubber is used as the substrate after cleaning. Data are collected from SEM, TEM, XRD, rheometer, contact angle meter, resistance tester, and stretching tests. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Equipment includes SEM (Hitachi S-4800), TEM (FEI Tecnai G2 F30), XRD (PANalytical X’Pert Pro), four-probe resistance tester (FP-001), rheometer (Kinexus Pro+), contact angle meter (SL200B/A201S), DC power supply (KXN 3002D), motorized linear stage with DY-IS controller, and Keithley-2400 multimeter. Materials are as specified in section 2.

4：Experimental Procedures and Operational Workflow:

1. 4. Experimental Procedures and Operational Workflow: Ag NDs are synthesized by immersing copper foil in AgNO3 and PVP solution, then centrifuged and washed. Conductive ink is prepared by mixing dried Ag NDs with SIS solution and Disponer 904S. Patterns are screen-printed onto substrates and dried. PSSs are fabricated by printing Ag ND ink and overprinting SIS ink, followed by drying and applying copper tape.

5：4S. Patterns are screen-printed onto substrates and dried. PSSs are fabricated by printing Ag ND ink and overprinting SIS ink, followed by drying and applying copper tape. Data Analysis Methods:

5. Data Analysis Methods: Data are analyzed using resistance measurements, SEM imaging for morphology, and statistical evaluation of sensor performance metrics like gauge factor and response time.