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Nano Research 2023年第1期16卷 1313-1319页

作者： Zewen Su Yingjie Zhao Youqiang Huang Chaoyue Xu Xiaolei Yang Binrui Wang Beibei Xu Shiqing Xu Gongxun Bai College of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018China College of Mechanical and Electrical Engineering China Jiliang UniversityHangzhou 310018China Key laboratory of Modern Optical Instruments Zhejiang UniversityHangzhou 310018China

Remote controlled soft actuators have attracted ever-increasing interest in industrial,medical,robotics,and engineering *** actuators are charming than normal tools in executing dedicate tasks due to small volume and flexible body they ***,it remains a challenge to design soft actuator that can adapt to multi-environments under remote stimuli with promising nano ***,we have developed a kind of near-infrared laser driven soft actuators with multi locomotive modes based on WSe2 and graphene nanosheets *** locomotion modes are driven by photothermal effect induced deformation to adapt to different working ***,the specially designed gripper driven by pulsed laser can lift a heavy load which is four times of its *** work broadens the choice of advanced nanomaterials for photothermal conversion of soft *** is promising to realize applications including photothermal therapy and complex environment detection through the combination of the intelligent robot design and optical fiber system.

关键词： nanosheets heterostructure WSe2 graphene photothermal conversion light-driven soft actuator

Near-infrared light-driven Janus capsule motors： Fabrication, propulsion, and simulation

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Nano Research 2016年第12期9卷 3747-3756页

作者： Yingjie Wu Tieyan Si Jingxin Shao Zhiguang Wu Qiang He Key Laboratory of Microsystems and Microstructures Manufacturing Ministry of Education Micro/Nanotechnology Research CentreHarbin Institute of Technology Yi Kuang Jie 2 Harbin 150080 China

We report a fuel-free, near-infrared （NIR）-driven Janus microcapsule motor. The Janus microcapsule motors were fabricated by template-assisted polyelectrolyte layer-by-layer assembly, followed by spraying of a gold layer on one side. The NIR-powered Janus motors achieved high propulsion with a maximum speed of 42μm.s-1 in water. The propulsion mechanism of the Janus motor was attributed to the self-thermophoresis effect： The asymmetric distribution of the gold layer generated a local thermal gradient, which in turn generated thermophoretic force to propel the Janus motor. Such NIR-propelled Janus capsule motors can move efficiently in cell culture medium and have no obvious effects on the cell at the power of the NIR laser, indicating considerable promise for future biomedical applications.

关键词： layer-by-layer assembly Janus micromotor light-driven active targeting photothermal effect

Dye-Enhanced Self-Electrophoretic Propulsion of light-driven TiO_2–Au Janus Micromotors

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Nano-Micro Letters 2017年第3期9卷 60-71页

作者： Yefei Wu Renfeng Dong Qilu Zhang Biye Ren School of Materials Science and Engineering South China University of Technology School of Chemistry and Environment South China Normal University

light-driven synthetic micro-/nanomotors have attracted considerable attention in recent years due to their unique performances and potential applications. We herein demonstrate the dye-enhanced self-electrophoretic propulsion of light-driven Ti O_2–Au Janus micromotors in aqueous dye solutions. Compared to the velocities of these micromotors in pure water, 1.7, 1.5, and 1.4 times accelerated motions were observed for them in aqueous solutions of methyl blue(10-5g L^(-1)), cresol red(10^(-4)g L^(-1)),and methyl orange(10^(-4)g L^(-1)), respectively. We determined that the micromotor speed changes depending on thetype of dyes, due to variations in their photodegradation rates. In addition, following the deposition of a paramagnetic Ni layer between the Au and Ti O_2 layers, the micromotor can be precisely navigated under an external magnetic field. Such magnetic micromotors not only facilitate the recycling of micromotors, but also allow reusability in the context of dye detection and *** general, such photocatalytic micro-/nanomotors provide considerable potential for the rapid detection and ‘‘on-thefly'' degradation of dye pollutants in aqueous environments.

关键词： TiO2–Au Janus micromotor Selfelectrophoresis light-driven Motion control Dye pollution Environmental remediation

light hybrid micro/nano-robots:From propulsion to functional signals

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Nano Research 2022年第6期15卷 5355-5375页

作者： Yuxin Gao Ze Xiong Jizhuang Wang Jinyao Tang Dan Li College of Chemistry and Materials Science Jinan UniversityGuangzhou 510632ChinaGuangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and ApplicationsJinan UniversityGuangzhou 510632China Department of Chemistry The University of Hong KongHong KongChina

Untethered motile micro/nanorobots(MNRs)that can operate in hard-to-reach small space and perform noninvasive tasks in cellular level hold bright future in healthcare,nanomanufacturing,biosensing,and environmental ***,as a flexible encoding method with tunable freedom of intensity,wavelength,polarization,and propagation direction,endows unique spatialtemporal precision and dexterity to the manipulation of ***,light has been extensively investigated as functional signals in bioimaging,phototherapy,as well as photoelectrochemical *** hybridization of light and other actuation method ushers in novel MNRs with broadened design space,improved controllability,and advanced *** this review,the fundamental mechanisms of light-driven MNRs will be *** top of it,light hybrid systems,coupling with magnetic,electric,chemical,or ultrasound field,will be reviewed,with light for propulsion or as functional *** rational hybridization of multiple stimulus in MNRs not only promises simple combination of two driving forces,but more importantly,motivates rethinking of light-driven MNRs for unprecedented applications.

关键词： micro/nanorobots micro/nanomotors multiple stimulus light-driven functional signals

A novel Cu_(1.5)Mn_(1.5)O_(4)photothermal catalyst with boosted surface lattice oxygen activation for efficiently photothermal mineralization of toluene

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Nano Research 2023年第2期16卷 2133-2141页

作者： Qiang Cheng Zhuangzhuang Wang Xiaotian Wang Jiaming Li Yuan Li Gaoke Zhang Shenzhen Research Institute Hubei Key Laboratory of Mineral Resources Processing and EnvironmentState Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan 430070China

Developing a novel photothermal catalyst for efficient mineralization of volatile organic compounds(VOCs)is of great significance to control air ***,for the first-time,a spinel Cu_(1.5)Mn_(1.5)O_(4)nanomaterial with enhanced surface lattice oxygen activation was successfully obtained by a novel light-driven in situ reconstruction strategy from its precursor(CuMnO_(2))for efficient toluene mineralization.X-ray diffraction(XRD)and high-resolution transmission electron microscopy(HRTEM)analyses confirm that the CuMnO_(2)phase was converted into spinel Cu1.5Mn1.5O4 phase under full spectrum light ***–visible–near infrared ray(UV–vis–NIR)spectroscopy,X-ray photoelectron spectroscopy(XPS)analysis,and density functional theory(DFT)calculations determine that the strong near-infrared absorption ability and low dissociation energy of oxygen bond in Cu_(1.5)Mn_(1.5)O_(4)are beneficial to its surface lattice oxygen ***,O2-temperature programmed desorption(TPD)and in situ diffuse reflectance infrared transform spectroscopy(DRIFTS)further indicate that the surface lattice oxygen of the Cu_(1.5)Mn_(1.5)O_(4)is easily activated under light irradiation,which can promote ring opening of *** research endows a new design of photothermal nanomaterial with enhanced lattice oxygen activation for deep oxidation of VOCs.

关键词： Cu_(1.5)Mn_(1.5)O_(4)nanomaterial surface lattice oxygen light-driven photothermal catalysis volatile organic compounds

Frontiers of Plasmonics

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Frontiers of physics 2014年第1期9卷 1-2页

作者： Lian-Ming Tong Hong-Xing Xu Laboratory of Nanoscale Physics and Devices Institute of Physics Chinese Academy of Sciences P.O.BOX 603-146 Beijing 100190 China

Plasmonics, an important branch of nanooptics, has seen its prosperous development and exciting applications during the past years [1 3]. Surface plasmons （SPs）, the light-driven collective oscillation of free electrons in metals, include the localized type （localized surface plasmons, LSPs） and propagating type （surface plasmon polaritons, SPPs）. The most charming characteristics of SPs are the strong confinement of electromagnetic （EM） field （and thus EM enhancement） and long range propagation of EM energy （in case of SPPs）. Based on these characters, intriguing applications in many fields have been found, for example, single molecule spectroscopy using surface- enhanced Raman scattering （SERS） [4-7], ultrasensitive detection of chemical and biological species using localized surface plasmon resonance （LSPR） sensor [8, 9], spaser that stems from the amplification of resonant SPs in the cavity of metal nanostructures [10-12], superlens that utilizes the sub-wavelength concentration of SPs [13, 14], and plasmonic circuits that are based on the propagation modulation of SPPs [15-17].

关键词： light-driven LSPs sub-wavelength

Solar Energy for Value-Added Chemical Production by lightPowered Microbial Factories

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CCS Chemistry 2024年第7期6卷 1776-1788页

作者： Haibo Wu Xilong Feng Liangjun Wang Cheng Chen Peng Wu Linpo Li Jinjie Xu Fan Qi Suoying Zhang Fengwei Huo Weina Zhang Key Laboratory of Flexible Electronics(KLOFE) Institute of Advanced Materials(IAM)School of Flexible Electronics(Future Technologies)Nanjing Tech University(NanjingTech)Nanjing 211816

The light-driven material-microorganism biohybrid system has the potential to transfer solar energy for chemical ***,few studies have reported the construction of biohybrid systems using light-responsive materials with nonmodel strains that have been widely used in practical industrial production for value-added chemicals,especially with regard to the mechanism of action of photogenerated charges in the cytoplasm,probably due to the complexity of their anabolic ***,a biohybrid system as a research mode was constructed by electrostatically self-assembling a highly efficient light-harvesting material of graphite-phase nitrided carbon(g-C_(3)N_(4))nanosheets with nonmodel strains(Phaffia rhodozyma)for synthesis of nutritional chemical *** biohybrid interface enabled efficient separation,transfer,and transport of photogenerated charges from g-C_(3)N_(4) into the interior of ***,which improved the substance metabolism and the energy metabolism of ***,photogenerated charges can significantly promote the accumulation of precursors along the astaxanthin anabolic pathway and enhance the cytoplasmic redox environment and ATP levels in the interior of ***,even under adverse conditions(such as enzyme inhibitors),thus increasing the yield of astaxanthin compared to the traditional culture of *** study not only provides new ideas for converting solar energy into value-added chemicals,but it also provides guidance for regulating microbial synthesis plants.

关键词： biohybrid system light-driven graphitephase nitrided carbon Phaffia rhodozyma astaxanthin

Preparation of Polyaniline/ZnO Films by Electrochemical Polymerization

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Open Journal of Polymer Chemistry 2016年第1期6卷 1-7页

作者： Yuki Kaitsuka Hiromasa Goto Division of Materials Science Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Japan

A series of polyaniline (PANI)/zinc oxide (ZnO) nano-particle (diameter 70 nm) composite films were prepared by electrochemical polymerization in the presence of ZnO nanoparticle. Furthermore, PANI-ZnO/PVA (PVA = polyvinyl alcohol) double-layer system was prepared. We first report preparations of a photocatalyst/conducting polymer light absorber by using ZnO nano-particles.

关键词： light-driven Nano-Particle Optical Activity