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| 1 | Low-cost,μm-thick,tape-free electronic tattoo sensors with minimized motion and sweat artifacts显示文摘Electronic tattoos(e-tattoos),also known as epidermal electronics,are ultra-thin and ultra-soft noninvasive but skin-conformable devices with capabilities including physiological sensing and transdermal stimulation and therapeutics.The fabrication of e-tattoos out of conventional inorganic electronic materials used to be tedious and expensive.Recently developed cut-and-paste method has significantly simplified the process and lowered the cost.However,existing cut-and-paste method entails a medical tape on which the electronic tattoo sensors should be pasted,which increases tattoo thickness and degrades its breathability.To address this problem,here we report a slightly modified cut-and-paste method to fabricate low-cost,open-mesh e-tattoos with a total thickness of just 1.5μm.E-tattoos of such thinness can be directly pasted on human skin and conforms to natural skin texture.We demonstrate that this ultra-thin,tape-free e-tattoo can confidently measure electrocardiogram(ECG),skin temperature,and skin hydration.Heart rate and even respiratory rate can be extracted from the ECG signals.A special advantage of such ultra-thin e-tattoo is that it is capable of high-fidelity sensing with minimized motion artifacts under various body movements.Effects of perspiration are found to be insignificant due to the breathability of such e-tattoos. | Youhua Wang Yitao Qiu Shideh Kabiri Ameri Hongwoo Jang Zhaohe Dai YongAn Huang Nanshu Lu | 2018 | npj Flexible Electronics2018，2，1： | 9 |
| 2 | Effects of arrangement of surge-root irrigation emitters on growth,yield and water use efficiency of apple trees显示文摘Six-year old apple trees were selected for field experiment.The objective of this study was to obtain the reasonable arrangement of surge-root irrigation emitters in apple orchards.There were three factors:the buried depth H(25,40,55 cm),the horizontal distance L(30,40,60 cm)between the emitters and the trunk of the experimental tree,and the number of the irrigation emitters N(1,2,4).The effect of the arrangement of surge-root irrigation emitters on the growth,yield and irrigation water use efficiency(IWUE)of apple trees were studied in Northern Shaanxi where the irrigation quota takes 60%-75%of the field water capacity.The results showed that the arrangement of emitters for surge-root irrigation had a significant effect on apple tree yield and IWUE,especially,the yield and IWUE reached 28388.17 kg/hm2 and 16.83 kg/m3 in treatment T3,respectively.At the same L and N levels(T1,T2,and T3),the yield and IWUE in treatment T3 were the highest,and the yields in treatments T1 and T2 were decreased by 26.22%and 31.48%,while IWUE is reduced by14.02%and 18.12%compared with T3,respectively.At the same H and N levels(T3,T4,and T5),the yield and IWUE of apple trees were decreased with increasing L level.Especially,when L was 30 cm(T3),the yield and IWUE were the highest.The same L and H levels(T3,T6,and T7)could promote the growth of apple trees when N was 2(T3).Compared with treatment T3,it was found that the increment of new shoots was decreased by 8.07%-18.71%,and the fruit diameter was decreased by 5.41%-9.11%.Therefore,two emitters should be arranged symmetrically on both sides of an apple tree,each was buried at a 40 cm depth and 30 cm away from the trunk of the tree to effectively improve the yield and IWUE of the apple tree in mountainous areas in Northern Shaanxi. | LI Zhongjie FEI Liangjun HAO Kun LIU Teng CHEN Nanshu ZHANG Quanju HUANG Deliang | 2020 | 排灌机械工程学报2020，38，7： | 4 |
| 3 | Modification of Flow Structure and Sound Source by Hybrid Porous-serrated Trailing Edge显示文摘The effects of hybrid porous-serrated trailing edge on flow structure and sound source of NACA65(12)-10 at moderate Reynolds number(Rec=5×1O^5)have been investigated by Delayed Detached Eddy Simulation(DDES).Compared with conventional serrated trailing edge,the pressure fluctuation in the vicinity of hybrid porous-serrated trailing edge is further decreased significantly.The typical necklace vortex structures stretching across adjacent serrations are suppressed by the porous additive.It is found that porous media changes the shear stress distribution along the serration edge and inside the serration gap,which consequently eliminates the generation of necklace vortex.Therefore,the deformation of vortex tube caused by velocity vector is weakened.The underlying mechanisms associated to the sound source modification are analyzed based on vortex sound theory.The magnitude of Lamb vector and the angle between vorticity and velocity vectors are synchronously reduced by the porous additive,which implies that the present hybrid porous-serrated trailing edge has important influence on the further attenuation of far-field aerodynamic noise. | Hanru Liu Nanshu Chen Yangang Wang Zhijie Hu | 2020 | Journal of Bionic Engineering2020，17，3： | 1 |
| 4 | Silicon nanomembranes for fingertip electronics显示文摘 | Ming Ying Andrew P Bonifas Nanshu Lu Yewang Su Rui Li Huanyu Cheng Abid Ameen Yonggang Huang John A Rogers | 2012 | Nanotechnology2012，，34： | 1 |
| 5 | Silicon nanomembranes for fingertip electronics显示文摘 | Ying Ming Bonifas A P Lu Nanshu | 2012 | Nanotechnology2012，23，34： | 1 |
| 6 | The effect of film thickness on the failure strain of polymer-supported metal films显示文摘 | Nanshu Lu Zhigang Suo Joost J. Vlassak | 2009 | Acta Materialia2009，，5： | 1 |
| 7 | Highly sensitive skin-mountable strain gauges based entirely on elastomers显示文摘 | Lu Nanshu Lu Chi Yang Shixuan | 2012 | Advanced Functional Materials2012，22，19： | 1 |
| 8 | Highlysensitive skin-mountable strain gauges based entirely on e-lastomers显示文摘 | NANSHU LU CHI Lu SHI XVAN YANG | 2012 | Advanced Functional Materials2012，22，40： | 1 |
| 9 | Metal films on polymer substrates stretched beyond 50% 显示文摘 | Nanshu Lu Xi Wang Zhigang Suo | 2007 | Applied Physics Letters2007，91，22： | 1 |
| 10 | Failure by simultaneous grain growth, strain localization, and interface debonding in metal films on polymer substrates 显示文摘 | Nanshu Lu Xi Wang Zhigang Suo | 2009 | Journal of Materials Research2009，24，2： | 1 |
| 11 | The effect of film thickness on the failure strain of polymer-supported metal films 显示文摘 | Nanshu Lu Zhigang Suo Joost J | 2010 | Acta Materialia2010，58，： | 1 |
| 12 | “Cut-and-paste” method for the rapid prototyping of soft electronics显示文摘Unlike wafer-based rigid electronics, soft electronics have many unique advantages including thinness, flexibility, stretchability,conformability, lightweight, large area, as well as low cost. As a result, they have demonstrated many emerging capabilities in healthcare devices, soft robotics, and human-machine interface. Instead of conventional microfabrication, there is an evergrowing interest in the freeform or digital manufacture of soft electronics. This review provides a survey for a cost-and timeeffective subtractive manufacturing process called the 'cut-and-paste' method. It employs a mechanical cutter plotter to form patterns on various electronically functional membranes such as sheets of metals, functional polymers, and even two-dimensional(2D) materials, supported by a temporary tape. The patterned membranes can then be pasted on soft substrates such as medical tapes or even human skin. This process is completely dry and desktop. It does not involve any rigid wafers and is hence capable of making large-area electronics. The process can be repeated to integrate multiple materials on a single substrate.Integrated circuits(ICs) and rigid components can be added through a 'cut-solder-paste' process. Multilayer devices can also be fabricated through lamination. We therefore advocate that the 'cut-and-paste' method is a very versatile approach for the rapid prototyping of soft electronics for various applications. | YANG XiangXing HUANG YiFu DAI ZhaoHe BARBER Jamie WANG PuLin LU NanShu | 2019 | Science China(Technological Sciences)2019，62，2： | 1 |
| 13 | Low-dimensional non-metal catalysts:principles for regulating p-orbital-dominated reactivity显示文摘Activation of p-block elements to replace the rare and precious transition metals for renewable energy applications is highly desirable.In this review,we go over recent experimental and theoretical progress on the low-dimensional non-metal materials for clean energy production,including carbon,silicon,oxide,boron,and phosphorus-based nanostructures,with the p-block elements serving as active sites.We aim to elucidate the mechanism for triggering activity in different kinds of non-metal systems,and extract general principles for controlling the p-orbital-mediated reactivity from a theoretical point of view.The perspectives and challenges for developing high-efficiency non-metal catalysts are provided in the end. | Si Zhou Wei Pei Yanyan Zhao Xiaowei Yang Nanshu Liu Jijun Zhao | 2021 | npj Computational Materials2021，，1： | 0 |
| 14 | Monolithically integrated stretchable photonics显示文摘Mechanically stretchable photonics provides a new geometric degree of freedom for photonic system design and foresees applications ranging from artificial skins to soft wearable electronics.Here we describe the design and experimental realization of the first single-mode stretchable photonic devices.These devices,made of chalcogenide glass and epoxy polymer materials,are monolithically integrated on elastomer substrates.To impart mechanical stretching capability to devices built using these intrinsically brittle materials,our design strategy involves local substrate stiffening to minimize shape deformation of critical photonic components,and interconnecting optical waveguides assuming a meandering Euler spiral geometry to mitigate radiative optical loss.Devices fabricated following such design can sustain 41%nominal tensile strain and 3000 stretching cycles without measurable degradation in optical performance.In addition,we present a rigorous analytical model to quantitatively predict stressoptical coupling behavior in waveguide devices of arbitrary geometry without using a single fitting parameter. | Lan Li Hongtao Lin Shutao Qiao Yi-Zhong Huang Jun-Ying Li Jérôme Michon Tian Gu Carlos Alosno-Ramos Laurent Vivien Anupama Yadav Kathleen Richardson Nanshu Lu Juejun Hu | 2017 | Light(Science & Applications)2017，6，1： | 0 |
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