The
wearable and integrated sensing platform is a promising choice
for developing real-time analytic electronics with clear advantages
but still poses challenges, such as the realization of high precision,
low limit of detection (LOD), moderate mechanical capacity, integration,
and miniaturization. In this work, a simple printed wearable smartsensor
has been fabricated with the aid of electrochemical plating methods
with bismuth (Bi) films. The excellent sensing behaviors, including
linear relationship, selectivity, stability, repeatability, and the
LOD at ppb levels, have been obtained by this smartsensor. Additionally,
the highly flexible textile-based sensor exhibits potential application
on the substrates of daily cloth, sports T-shirt, and sports wristbands,
and it maintains good stability under repeated deformations of washing
and twisting. Importantly, integrated with printed circuit board,
single chip micyoco, and Bluetooth modules, a smartsensing platform
is successfully acquired for real-time detection of heavy metals (e.g.,
Zn, Cd, Pb, etc.). Finally, actual samples of human sweat, seawater,
cosmetics, and drinking water have been remotely successfully demonstrated
for detection by this smartsensor, enabling a great promise for fast
on-site screening of samples in practical application.