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Like other biofluids, sweat contains a wealth of information about what's going on inside the body. However, collecting the fluid for analysis, usually by dripping or absorbing it from the skin's surface, can be time-consuming and messy. Now, researchers have developed a bandage-like biosensor that both collects and—in conjunction with a smart phone—analyzes sweat. The device, which could someday help diagnose diseases, is reported in ACS' journal Analytical Chemistry.
Compared with other biofluids such as blood, sweat has the potential to be obtained less invasively for diagnostic testing. Researchers have developed tools to collect and analyze sweat, such as temporary tattoos or microfluidic devices, but they typically require wires, electronics or sophisticated structures. Tailin Xu, Li-Ping Xu, Xueji Zhang and colleagues wanted to make a wearable biosensor resembling a bandage that samples sweat and uses...
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