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Currently, enhancing the output power of rotational‐mode triboelectric nanogenerators (TENGs) using various complicated systems is a contentious issue; however, this is a challenging process owing to the inherent characteristics of TENGs, namely, low output currents as opposed to high voltages. Thus, this study proposes a simple and innovative strategy for ultra‐high output peak power generation of TENGs called a self‐boosted rotational electrostatic‐discharge TENG (SRE‐TENG). The SRE‐TENG mechanism is unique as it is based on charge control and boosted discharge design, thereby achieving a remarkable peak power of 1103.8 W, peak power density of 140.6 Kw m−2, low optimum resistance of 100 Ω, and broad peak power generation range of 10 Ω to 1 GΩ. Diligent measurements and analyses of the peak and root‐mean‐square voltage and current outputs of the SRE‐TENG are conducted for various design variables and circuit configurations. The proposed SRE‐TENG mechanism is validated using experimental and multiphysics simulation results. The high‐output performance of the SRE‐TENG is demonstrated via the lighting of 3,000 LEDs and a 60‐W lamp array, continuous driving of a commercial sensor array, and hydrogen/oxygen generation via water electrolysis. [ABSTRACT FROM AUTHOR]

Alopecia, while not life-threatening, significantly impacts mental health, identity, and self-esteem of those afflicted. Current pharmacological and surgical treatments often have side effects and are limited in their ability to regenerate hair follicles (HF). Therefore, effective solutions for alopecia remain elusive. We developed an innovative hair tonic capable of stimulating HF regeneration by harnessing abandoned electric energy generated during human activities, such as the frictional electric field from walking and the electric fields from electronic devices. We devised a convenient, non-volatile, and conductive hair tonic to capture these naturally occurring electric fields. We identified 6-pentyl-α-pyrone (6PP) from Trichoderma gamsii as an antifungal agent effective against the dandruff-associated fungus Malassezia that can influence alopecia and adopted it into our conductive bio-harvesting tonic (CBT). Testing on hair follicle dermal papilla cells (HFDPC) and SKH1 mice showed that CBT significantly enhanced HF proliferation and increased growth factors in vitro and in vivo . In SKH1 mice, application of CBT under electric stimulation visibly increased hair shaft length and follicle counts. Additionally, tests on actual human hair follicles demonstrated delayed hair follicle regression when electric stimulation and 6PP were applied. In conclusion, our innovative CBT offers a promising and convenient approach for improving hair growth and combating alopecia.