Optimization of Nanofiber Wearable Heart Rate Sensor Module for Human Motion Detection

Table 1

Materials and instruments prepared by graphene nanocomposites.

Material	Status	Material source
Single-layer graphene oxide	Flake	Nanjing Xianfeng Nano Material Technology Co., Ltd.
Absolute ethanol	Concentration 98%	Sinopharm Chemical Reagent Co., Ltd.
Acetone	%	Sinopharm Chemical Reagent Co., Ltd.
Methanol	%	Sinopharm Chemical Reagent Co., Ltd.
Ethyl acetate	%	Sinopharm Chemical Reagent Co., Ltd.
Dichloromethane	%	Sinopharm Chemical Reagent Co., Ltd.
Ammonia	Concentration 25% ~28%	Sinopharm Chemical Reagent Co., Ltd.
Acetaldehyde	Concentration 40%	Sinopharm Chemical Reagent Co., Ltd.
Deionized water		Lab homemade
Ultrasound system	SK250H	Kedao Ultrasonic Instrument Co., Ltd.
Electric heating constant temperature drying oven	DHG-9245A type	Shanghai Yiheng Technology Co., Ltd.
Scanning electron microscope	6500F	JEOL Company
Semiconductor characteristic analysis tester	Type 4200	Keithley Company