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| 1 | Miura-origami-inspired electret/triboelectric power generator for wearable energy harvesting with water-proof capability显示文摘One of the critical issues for electret/triboelectric devices is the poor charge viability and stability in humid environments.Herein,we propose a new origami-inspired“W-tube”-shaped triboelectric nanogenerator(W-TENG)with two thin-film electrets folded based on Miura-origami.The Miura-origami fold is capable of transforming flat materials with large surface areas into reduced and compressed complex 3D structures with parallelogram tessellations.The triboelectric power generation components can thus be hermetically sealed inside the“W-tube”to avoid contact with the external humid environment.Furthermore,the elastic nature of the Miura-origami fold endows the proposed W-TENG device with excellent deformability,flexibility,and stretchability.Therefore,it is capable of harvesting kinetic energy from various directions and forms of movement,including horizontal pressing,vertical tapping,and lateral bending.The compact,light weight,and self-rebounding properties of the origami structure also make it convenient for integration into wearable devices.Various parameters of the W-TENG are intensively investigated,including the number of power generation units,original height of the device,acceleration magnitude,excitation direction,and water-proof capability.Triggered by hand tapping impulse excitation in the horizontal and vertical directions,the instantaneous open-circuit voltages can reach 791 V and 116 V with remarkable optimum powers of 691μW at 50MΩand 220μW at 35 MΩ,respectively.The outcomes of this work demonstrate the fusion of the ancient art of origami,material science,and energy conversion techniques to realize flexible,multifunctional,and water-proof TENG devices. | Kai Tao Haiping Yi Yang Yang Lihua Tang Zhaoshu Yang Jin Wu Honglong Chang Weizheng Yuan | 2020 | Microsystems & Nanoengineering2020，6，1： | 6 |
| 2 | Bidirectional Benign Regulation of Acupuncture in the Treatment of Stroke显示文摘Acupuncture is a traditional Chinese medicine therapy originated in China.In recent years,acupuncture is widely used in the field of neurological diseases,especially in the acute stage of stroke.Its mechanism of action is becoming clearer;one of the possible mechanisms is its bidirectional benign regulation. | Long He Honglong Wu Anlai Liu Meikui Zhang | 2021 | Proceedings of Anticancer Research2021，5，6： | 0 |
| 3 | Research Progress on the Neuroprotective Effect of Leonurine on Ischemic Stroke显示文摘Leonurus is one of the commonly used clinical drugs in traditional Chinese medicine.In recent years,leonurus has been widely used for cerebrovascular diseases.With the deepening of research,the effect of its main component,leonurine,on the central nervous system has become clearer,and its mechanism has been confirmed and explained from many aspects.For reference,this paper discusses the latest research on the neuroprotective effect of leonurine on ischemic stroke at home and abroad in recent years. | Honglong Wu Long He Zhifen Tan Meikui Zhang | 2021 | Proceedings of Anticancer Research2021，5，6： | 0 |
| 4 | Neglected acidity pitfall:boric acid-anchoring hole-selective contact for perovskite solar cells显示文摘The spontaneous formation of self-assembly monolayer(SAM) on various substrates represents an effective strategy for interfacial engineering of optoele ctronic devices.Hole-selective SAM is becoming popular among high-performance inverted perovskite solar cells(PSCs),but the presence of strong acidic anchors(such as-PO_(3)H_(2)) in state-of-the-art SAM is detrimental to device stability.Herein,we report for the first time that acidity-weakened boric acid can function as an alternative anchor to construct efficient SAM-based hole-sele ctive contact(HSC) for PSCs.Theoretical calculations reve al that boric acid spontaneously chemisorbs onto indium tin oxide(ITO) surface with oxygen vacancies facilitating the adsorption progress.Spectroscopy and electrical measurements indicate that boric acid anchor significantly mitigates ITO corrosion.The excess boric acid containing molecules improves perovskite deposition and results in a coherent and well-passivated bottom interface,which boosts the fill factor(FF) performance for a variety of perovskite compositions.The optimal boric acid-anchoring HSC(MTPA-BA) can achieve power conversion efficiency close to 23% with a high FF of 85.2%.More importantly,the devices show improved stability:90% of their initial efficiency is retained after 2400 h of storage(ISOS-D-1) or 400 h of operation(ISOS-L-1),which are 5-fold higher than those of phosphonic acid SAM-based devices.Acidity-weakened boric acid SAMs,which are friendly to ITO,exhibits well the great potential to improve the stability of the interface as well as the device. | Huanxin Guo Cong Liu Honglong Hu Shuo Zhang Xiaoyu Ji Xiao-Ming Cao Zhijun Ning Wei-Hong Zhu He Tian Yongzhen Wu | 2023 | National Science Review2023，10，5： | 0 |
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