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Growth asymmetry precedes differential auxin response during apical hook initiation in Arabidopsis

Journal of Integrative Plant Biology 2022年第1期64卷 5-22页

作者： Yang Peng Dan Zhang Yuping Qiu Zhina Xiao Yusi Ji Wenyang Li Yiji Xia Yichuan Wang Hongwei Guo Department of Biology Institute of Plant and Food ScienceSchool of Life SciencesSouthern University of Science and TechnologyShenzhen 518055China Department of Biology Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education InstitutesSchool of Life SciencesSouthern University of Science and TechnologyShenzhen 518055China Department of Biology Faculty of ScienceHong Kong Baptist UniversityKowloon TongHong Kong 999077China microlens technologies Beijing 100086China

The development of a hook-like structure at the apical part of the soil-emerging organs has fascinated botanists for centuries,but how it is initiated remains ***,we demonstrate with highthroughput infrared imaging and 2-D clinostat treatment that,when gravity-induced root bending is absent,apical hook formation still takes *** such scenarios,hook formation begins with a de novo growth asymmetry at the apical part of a straightly elongating ***,suchde novo asymmetric growth,but not the following hook enlargement,precedes the establishment of a detectable auxin response asymmetry,and is largely independent of auxin biosynthesis,transport and ***,we found that functional cortical microtubule array is essential for the following enlargement of hook *** microtubule array was disrupted by oryzalin,the polar localization of PIN proteins and the formation of an auxin maximum became impaired at the to-be-hook *** together,we propose a more comprehensive model for apical hook initiation,in which the microtubuledependent polar localization of PINs may mediate the instruction of growth asymmetry that is either stochastically taking place,induced by gravitropic response,or both,to generate a significant auxin gradient that drives the full development of the apical hook.

关键词： apical hook initiation asymmetric auxin response cortical microtubule array de novo growth asymmetry PINs

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Erratum to: Advancing pressure sensors performance through a flexible MXene embedded interlocking structure in a microlens array

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Nano Research 2024年第4期17卷 3428-3428页

作者： Tong Li Zhenzong Xu Ben Bin Xu Zhanhu Guo Yunhong Jiang Xuehua Zhang Maryam Bayati Terence Xiaoteng Liu Yan-Hua Liu School of Optoelectronic Science and Engineering Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province&Key Lab of Modern Optical Technologies of Education Ministry of ChinaSoochow UniversitySuzhou 215006China Department of Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon TyneNE18STUK Hub for Biotechnology in the Built Environment Department of Applied SciencesNorthumbria University at NewcastleNE18STUK Department of Chemical and Materials Engineering University of AlbertaEdmontonAlberta T6G 1H9Canada

Erratum to Nano Research 2023,16(7):10493–10499 https://***/10.1007/s12274-023-5727-6 The article“Advancing pressure sensors performance through a flexible MXene embedded interlocking structure in a microlens array”,written by Tong Li,Zhenzong Xu,Ben Bin Xu,Zhanhu Guo,Yunhong Jiang,Xuehua Zhang,Maryam Bayati,Terence Xiaoteng Liu,and Yan-Hua Liu,was originally published electronically on the publisher’s internet portal on May 20,2023 without open access due to an unfortunate oversight during the conversion *** publisher apologizes this *** article is forthwith distributed under a Creative Commons Attribution 4.0 International License,which permits use,sharing,adaptation,distribution and reproduction in any medium or format,as long as you give appropriate credit to the original author(s)and the source,provide a link to the Creative Commons licence,and indicate if changes were made.

关键词： Creative performance structure

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Advancing pressure sensors performance through a flexible MXene embedded interlocking structure in a microlens array

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Nano Research 2023年第7期16卷 10493-10499页

Piezoresistive composite elastomers have shown great potentials for wearable and flexible electronic applications due to their high sensitivity,excellent frequency response,and easy signal detection.A composition membrane sensor with an interlocked structure has been developed and demonstrated outstanding pressure sensitivity,fast response time,and low temperature drift *** with a flexible MXene-based flat sensor(Ti_(3)C_(2)),the interlocked sensor exhibits a significantly improved pressure sensitivity of two magnitudes higher(21.04 kPa^(-1)),a fast reaction speed of 31 ms,and an excellent cycle life of 5000 test *** viability of sensor in responding to various external stimuli with high deformation capacity has been confirmed by calculating the force distribution of a polydimethylsiloxane(PDMS)film model with a microlens structure using the solid mechanics module in *** conventional process,we utilized three-dimensional(3D)laser-direct writing lithography equipment to directly transform high-precision 3D data into a micro-nano structure morphology through variable exposure doses,which reduces the hot melting ***,the flexible pressure device is capable of detecting and distinguishing signals ranging from finger movements to human pulses,even for speech *** simple,convenient,and large-format lithographic method offers new opportunities for developing novel human-computer interaction devices.

关键词： three-dimensional(3D)lithography microlens array flexible electronics pizoresistive pressure sensors MXene

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Formation for Bass-Relief Microprofiles Based on an Analytic Formulation

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Chinese Physics Letters 2007年第10期24卷 2867-2869页

作者：史立芳董小春邓启凌罗先刚杜春雷 State Key Laboratory of Optical technologies for Microfabrication Institute of Optics and Electronics Chinese Academy of Sciences PO Box 350 Chengdu 610209

A method of fast design and fabrication for bass-relief micro-profiles is developed by using an analytic formulation to determine the exposure distribution. Based on an equivalent exposure threshold model, the formulation is simplified for the case of bass-relief profile corresponding to the smaller exposure dose. The mask function for a microlens array is designed without iteration involved by the analytic formulation. The experiment is performed to validate the method, and the fabrication result is obtained with the profile error less than 30nm （rms）.

关键词： coated conductor buffer layer self-epitaxy CeO2

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A broadband achromatic metalens array for integral imaging in the visible

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Light(Science & Applications) 2019年第1期8卷 586-595页

作者： Zhi-Bin Fan Hao-Yang Qiu Han-Le Zhang Xiao-Ning Pang Li-Dan Zhou Lin Liu Hui Ren Qiong-Hua Wang Jian-Wen Dong State Key Laboratory of Optoelectronic Materials and technologies Sun Yatsen UniversityGuangzhou 510275China School of Physics Sun Yat-sen UniversityGuangzhou 510275China School of Instrumentation and Optoelectronic Engineering Beihang UniversityBeijing 100191China

Integral imaging is a promising three-dimensional(3D)imaging technique that captures and reconstructs light field *** arrays are usually used for the reconstruction process to display 3D scenes to the ***,the inherent chromatic aberration of the microlens array reduces the viewing quality,and thus,broadband achromatic imaging remains a challenge for integral ***,we realize a silicon nitride metalens array in the visible region that can be used to reconstruct 3D optical scenes in the achromatic integral imaging for white *** metalens array contains 60×60 polarization-insensitive metalenses with nearly diffraction-limited *** nanoposts in each high-efficiency(measured as 47%on average)metalens are delicately designed with zero effective material dispersion and an effective achromatic refractive index distribution from 430 to 780 *** addition,such an achromatic metalens array is composed of only a single silicon nitride layer with an ultrathin thickness of 400 nm,making the array suitable for on-chip hybrid-CMOS integration and the parallel manipulation of optoelectronic *** expect these findings to provide possibilities for full-color and aberration-free integral imaging,and we envision that the proposed approach may be potentially applicable in the fields of high-power microlithography,high-precision wavefront sensors,virtual/augmented reality and 3D imaging.

关键词： chromatic integral visible

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Scalable and ultrafast epitaxial growth of single-crystal graphene wafers for electrically tunable liquid-crystal microlens arrays

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Science Bulletin 2019年第10期64卷 659-668页

作者： Bing Deng Zhaowei Xin Ruiwen Xue Shishu Zhang Xiaozhi Xu Jing Gao Jilin Tang Yue Qi Yani Wang Yan Zhao Luzhao Sun Huihui Wang Kaihui Liu Mark H. Rummeli Lu-Tao Weng Zhengtang Luo Lianming Tong Xinyu Zhang Changsheng Xie Zhongfan Liu Hailin Peng Center for Nanochemistry (CNC) Beijing Science and Engineering Center for Nanocarbons Beijing National Laboratory for Molecular Sciences (BNLMS) College of Chemistry and Molecular Engineering Peking University Beijing 100871 China Beijing Graphene Institute (BCl) Beijing 100094 China Wuhan National Laboratory for Optoelectronics School of Automation National Key Laboratory of Science and Technology on Multispectral Information Processing Huazhong University of Science & Technology Wuhan 430074 China Department of Chemical and Biological Engineering Materials Characterization and Preparation Facility The Hong Kong University of Science and Technology Hong Kong 999077 China State Key Laboratory for Mesoscopic Physics School of Physics Peking University Beijing 100871 China Institute of Functional Nano and Soft Materials (FUNSOM) J iangsu Key Laboratory for Carbon-Based Functional Materials and Devices and Joint International Research Laboratory of Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China Academy for Advanced Interdisciplinary Studies Peking University Beijing 100871 China Key Laboratory of Advanced Carbon Materials and Wearable Energy technologies of Jiangsu Province College of Energy Soochow Institute for Energy and Materials Innovations Soochow University Suzhou 215006 China Centre of Polymer and Carbon Materials Polish Academy of Sciences Zabrze 41-819 Poland Wuhan National Laboratory for Optoelectronics Huazhong University of Science & Technology Wuhan 430074 China

The scalable growth of wafer-sized single-crystal graphene in an energy-efficient manner and compatible with wafer process is critical for the killer applications of graphene in high-performance electronics and optoelectronics. Here, ultrafast epitaxial growth of single-crystal graphene wafers is realized on singlecrystal Cu90Ni10(1 1 1) thin films fabricated by a tailored two-step magnetron sputtering and recrystallization process. The minor nickel(Ni) content greatly enhances the catalytic activity of Cu, rendering the growth of a 4 in. single-crystal monolayer graphene wafer in 10 min on Cu90Ni10(1 1 1), 50 folds faster than graphene growth on Cu(1 1 1). Through the carbon isotope labeling experiments, graphene growth on Cu90Ni10(1 1 1) is proved to be exclusively surface-reaction dominated, which is ascribed to the Cu surface enrichment in the Cu Ni alloy, as indicated by element in-depth profile. One of the best benefits of our protocol is the compatibility with wafer process and excellent scalability. A pilot-scale chemical vapor deposition(CVD) system is designed and built for the mass production of single-crystal graphene wafers, with productivity of 25 pieces in one process cycle. Furthermore, we demonstrate the application of single-crystal graphene in electrically controlled liquid-crystal microlens arrays(LCMLA), which exhibit highly tunable focal lengths near 2 mm under small driving voltages. By integration of the graphene based LCMLA and a CMOS sensor, a prototype camera is proposed that is available for simultaneous light-field and light intensity imaging. The single-crystal graphene wafers could hold great promising for highperformance electronics and optoelectronics that are compatible with wafer process.

关键词： Graphene Ultrafast growth CuNi(1 1 1)thin film Single crystal wafer Liquid crystal microlens arrays

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