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Enhanced catalytic degradation of organic pollutants by multi-stimuli activated multiferroic nanoarchitectures

Nano Research 2020年第8期13卷 2183-2191页

作者： Fajer Mushtaq Xiangzhong Chen Harun Torlakcik Bradley JNelson Salvador Pané Multi-Scale Robotics Lab(MSRL) Institute of Robotics and Intelligent Systems(IRIS)ETH ZurichCH-8092ZurichSwitzerland

Smart catalysts that can simultaneously utilize multiple energy sources will have a significant positive impact on the inefficiencies of conventional environmental remediation approaches,and will address their high energy *** this work,we have manufactured multiferroic magnetoelectric photocatalysts that can be simultaneously activated using multiple energy sources for the degradation of organic *** catalysts are composed of CoFe2O4@BiFeO3(CFO@BFO)nanooctahedrons(NOs),CFO@BFO nanocubes(NCs),and CFO@BFO nanowires(NWs),and were successful in harnessing energy from three different energy sources,including UV-vis light,acoustically mediated mechanical vibrations and magnetic *** CFO@BFO NOs displayed the most enhanced degradation,reaching 93%,96%,and 99%degradation of RhB dye within 1 h under light,ultrasound,and magnetic fields,*** these energy sources were used simultaneously,significantly increased reaction rates were observed compared to the single-energy source *** of radical trapping experiments indicate that radical species i.e.,OH·and O2·^-play a dominant role in catalytic degradation of organic pollutant,RhB,under all three *** results will contribute significantly to the development of new environmental technologies that are highly versatile in nature and able to adapt to changing environments to deliver efficient environmental remediation.

关键词： magnetoelectric photocatalysis nanoparticles water remediation piezoelectric

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Shape effect of prodrug nanoassemblies on treatment efficacy of cancer therapy

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Nano Research 2025年第2期18卷 616-626页

作者： Fengxiang Liu Rongzheng Liu Xiaoyuan Fan Xia Wang Kaiyuan Wang Hainan Zhao Hao Ye Shunzhe Zheng Xiao Kuang Yinxian Yang Haotian Zhang Qiming Kan Zhonggui He Jian Chen Jin Sun Department of Pharmaceutics Wuya College of InnovationShenyang Pharmaceutical UniversityShenyang 110016China School of Pharmacy Shenyang Pharmaceutical UniversityShenyang 110016China Nephrology department The First Affiliated Hospital of Jinzhou Medical UniversityJinzhou 121000China Multi-Scale Robotics Lab(MSRL) Institute of Robotics&Intelligent Systems(IRIS)ETH Zurich 8092Switzerland School of Life Science and Biopharmaceutics Shenyang Pharmaceutical UniversityShenyang 110016China Joint International Research Laboratory of Intelligent Drug Delivery Systems Ministry of EducationShenyang 110016China School of Pharmacy Shanghai Jiao Tong UniversityShanghai 200240China

The tumor microenvironment-sensitive prodrug-based nanoparticles(NPs)have emerged as a promising drug delivery system(DDS).The shape of these particles plays a crucial role in their in vivo ***,non-spherical organic NPs are rarely reported due to the inherent flexibility and variability of organic ***,we fabricate reduction-sensitive prodrug NPs and explore the impact of their morphology properties on their in vivo *** are self-assembled into spherical NPs with distearoyl phosphoethanolamine-PEG2000(DSPE-PEG2k),or into rod-shaped NPs with D-a-tocopherol polyethylene glycol 2000 succinate(TPGS2k)due to the stronger binding *** comparison with spherical NPs,the endocytosis of rod-shaped NPs predominantly relies on caveolae-mediated pathways rather than clathrin-mediated ones,potentially avoiding degradation by ***,the rod-shaped NPs exhibit prolonged circulation time,increased tumor accumulation,and enhanced antitumor *** current findings reveal the significant effect of particle shape on the behavior of prodrug NPs and introduce a novel paradigm for high-efficacy cancer therapy of prodrug NPs.

关键词： camptothecin self-assembly prodrug-based nanoparticles nanorod cancer therapy

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Development of a magnetoelectric neural stimulator for in vitro experiments

Development of a magnetoelectric neural stimulator for in vi...

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IEEE Biomedical Circuits and Systems (BIOCAS)

作者： Stratis Matsoukis Joana Covelo Maria V. Sanchez-Vives Andrea Veciana Donghoon Kim Xiang-Zhong Chen Salvador Pané Hidelberto Macedo-Zamudio Ulrike Wallrabe Ren Xu Guenter Edlinger Josef Scharinger G.tec Medical Engineering GmbH Austria Institute for Computational Perception Johannes Kepler University Linz Austria Institut D'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Barcelona Spain Institució Catalana de Recerca i Estudis Avançats (ICREA) Barcelona Spain Multi-Scale Robotics Lab (MSRL) Institute of Robotics and Intelligent Systems (IRIS) ETH Zurich Zurich Switzerland Laboratory for Microactuators IMTEK Albert-Ludwigs-Universität Freiburg Freiburg Germany

Magnetoelectric (ME) materials hold the potential for wireless and minimally invasive brain stimulation with high spatial precision. However, comprehensive integration of ME materials in neurophysiology experiments remains an open challenge. In this study, we present the development of a ME stimulator prototype for in vitro brain stimulation, specifically tested with BiFeO 3 -CoFe 2 O 4 (BFO-CFO) nanoparticles. Our approach entails the design and implementation of a ME stimulator, which seamlessly integrates with existing electrophysiology setups while supporting a wide range of frequencies. To optimize the stimulator's design and evaluate its performance, we conducted modeling and simulations, bench tests, and in vitro experiments using cortical slices. The proposed ME stimulator offers neuroscientists a reliable and versatile tool to advance their understanding of brain function and potentially enhance the treatment of neurological disorders.

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Biomechanical study of living caenorhabditis elegans embryos using cellular force microscopy 23

Biomechanical study of living caenorhabditis elegans embryos...

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23rd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2019

作者： Krenger, Roger Burri, Jan T. Lehnert, Thomas Nelson, Bradley J. Gijs, Martin A.M. Laboratory of Microsystems LMIS2 EPFL Lausanne Switzerland Multi-Scale Robotics Lab MSRL ETH Zürich Switzerland

The Caenorhabditis elegans embryo has been extensively studied, however, its biomechanical properties are largely unknown for the time being. In this work, we performed for the first time a quantitative study of the m... 详细信息

ISBN: (纸本)9781733419000

关键词： Biomechanics

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Powering and Fabrication of Small-scale robotics Systems

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Current robotics reports 2021年第4期2卷 427-440页

作者： Salvador Pané Pedro Wendel-Garcia Yonca Belce Xiang-Zhong Chen Josep Puigmartí-Luis Multi-Scale Robotics Lab (MSRL) Institute of Robotics and Intelligent Systems (IRIS) ETH Zurich CH-8092 Zurich Switzerland. Institute of Intensive Care Medicine University Hospital of Zürich Zürich Switzerland. Departament de Ciència Dels Materials I Química Física Institut de Química Teòrica I Computacional 08028 Barcelona Spain.

PURPOSE OF REVIEW:The increasing number of contributions in the field of small-scale robotics is significantly associated with the progress in material science and process engineering during the last half century. With the objective of integrating the most optimal materials for the propulsion of these motile micro- and nanosystems, several manufacturing strategies have been adopted or specifically developed. This brief review covers some recent advances in materials and fabrication of small-scale robots with a focus on the materials serving as components for their motion and actuation. RECENT FINDINGS:Integration of a wealth of materials is now possible in several micro- and nanorobotic designs owing to the advances in micro- and nanofabrication and chemical synthesis. Regarding light-driven swimmers, novel photocatalytic materials and deformable liquid crystal elastomers have been recently reported. Acoustic swimmers are also gaining attention, with several prominent examples of acoustic bubble-based 3D swimmers being recently reported. Magnetic micro- and nanorobots are increasingly investigated for their prospective use in biomedical applications. The adoption of different materials and novel fabrication strategies based on 3D printing, template-assisted electrodeposition, or electrospinning is briefly discussed. SUMMARY:A brief review on fabrication and powering of small-scale robotics is presented. First, a concise introduction to the world of small-scale robotics and their propulsion by means of magnetic fields, ultrasound, and light is provided. Recent examples of materials and fabrication methodologies for the realization of these devices follow thereafter.

关键词： Micro- and nanofabrication Micro- and nanoscale propulsion Mobile small-scale robotics

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Integration of ferroelectric materials in microdevices for biomedical application

Integration of ferroelectric materials in microdevices for b...

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第9届纳米操纵、制造与测量国际会议

作者： Xiangzhong Chen Bradley J.Nelson Salvador Pané Multi-Scale Robotics Lab(MSRL) Institute of Robotics and Intelligent System Swiss Federal Institute of Technology(ETH)ZurichSwitzerland

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Magnetoelectric Catalysis: Magnetoelectrically Driven Catalytic Degradation of Organics (Adv. Mater. 28/2019)

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Advanced Materials 2019年第28期31卷

作者： Fajer Mushtaq Xiangzhong Chen Harun Torlakcik Christian Steuer Marcus Hoop Erdem Can Siringil Xavi Marti Gregory Limburg Patrick Stipp Bradley J. Nelson Salvador Pané Multi‐Scale Robotics Lab (MSRL) Institute of Robotics and Intelligent Systems (IRIS) ETH Zurich CH‐8092 Zurich Switzerland Institute of Pharmaceutical Sciences ETH Zurich CH‐8093 Zurich Switzerland Institute of Physics Academy of Sciences of the Czech Republic Cukrovarnická 10 16200 Praha 6 Czech Republic IGS Research Ltd. Calle La Coma Nave 8 43140 La Pobla de Mafumet Tarragona Spain

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Metal–Organic Frameworks: In-Flow MOF Lithography (Adv. Mater. Technol. 6/2019)

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Advanced Materials Technologies 2019年第6期4卷

作者： Semih Sevim Carlos Franco Hongjun Liu Hervé Roussel Laetitia Rapenne Juan Rubio-Zuazo Xiang-Zhong Chen Salvador Pané David Muñoz-Rojas Andrew J. deMello Josep Puigmartí-Luis Institute of Chemical and Bioengineering ETH Zurich Vladimir Prelog Weg 1 8093 Zurich Switzerland Institute of Engineering Univ. Grenoble Alpes CNRS Grenoble INP LMGP F-38000 Grenoble France Spanish CRG BM25-SpLine Beamline at the ESRF 71 Av des Martyrs CS 40220 38043 Grenoble Cedex 9 France Instituto de Ciencia de Materiales de Madrid—ICMM/CSIC Cantoblanco E-28049 Madrid Spain Multi-Scale Robotics Lab (MSRL) Institute of Robotics and Intelligent Systems (IRIS) ETH Zurich Tannenstrasse 3 8092 Zurich Switzerland

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Mineralization‐Inspired Synthesis of Magnetic Zeolitic Imidazole Framework Composites

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Angewandte Chemie 2019年第38期131卷

作者： Anastasia Terzopoulou Marcus Hoop Xiang‐Zhong Chen Ann M. Hirt Michalis Charilaou Yang Shen Fajer Mushtaq Angel Pérez del Pino Constantin Logofatu Laura Simonelli Andrew J. de Mello Christian J. Doonan Jordi Sort Bradley J. Nelson Salvador Pané Josep Puigmartí‐Luis Multi-Scale Robotics Lab (MSRL) Institute of Robotics and Intelligent Systems (IRIS) ETH Zurich Tannenstrasse 3 8092 Zurich Switzerland Institute of Geophysics ETH Zurich Sonnegstrasse 5 8092 Zurich Switzerland Laboratory of Metal Physics and Technology Department of Materials ETH Zurich Vladimir Prelog Weg 1 8093 Zurich Switzerland Institute of Food Nutrition and Health ETH Zurich Schmelzbergstrasse 7 8092 Zurich Switzerland Institute of Materials Science of Barcelona (ICMAB-CSIC) Campus UAB 08193 Bellaterra Spain National Institute for Materials Physics PO Box MG 7 77125 Bucharest Romania CELLS—ALBA Synchrotron Radiation Facility Carrer de la Llum 2–26 08290 Cerdanyola del Valles Barcelona Spain Institute of Chemical and Bioengineering ETH Zurich Vladimir Prelog Weg 1 8093 Zurich Switzerland School of Chemistry and Physics University of Adelaide Adelaide South Australia 5005 Australia Institució Catalana de Recerca i Estudis Avançats (ICREA) and Departament de Física Universitat Autònoma de Barcelona 08193 Bellaterra Spain

Metal–organic frameworks (MOFs) capable of mobility and manipulation are attractive materials for potential applications in targeted drug delivery, catalysis, and small‐scale machines. One way of rendering MOFs navigable is incorporating magnetically responsive nanostructures, which usually involve at least two preparation steps: the growth of the magnetic nanomaterial and its incorporation during the synthesis of the MOF crystals. Now, by using optimal combinations of salts and ligands, zeolitic imidazolate framework composite structures with ferrimagnetic behavior can be readily obtained via a one‐step synthetic procedure, that is, without the incorporation of extrinsic magnetic components. The ferrimagnetism of the composite originates from binary oxides of iron and transition metals such as cobalt. This approach exhibits similarities to the natural mineralization of iron oxide species, as is observed in ores and in biomineralization.

关键词： Biomedizinische Anwendungen Magnetismus Metall-organische Gerüste Zeolith-Imidazolat-Gerüste

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Magnetoelectrics: Hybrid Magnetoelectric Nanowires for Nanorobotic Applications: Fabrication, Magnetoelectric Coupling, and Magnetically Assisted In Vitro Targeted Drug Delivery (Adv. Mater. 8/2017)

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Advanced Materials 2017年第8期29卷

作者： Xiang‐Zhong Chen Marcus Hoop Naveen Shamsudhin Tianyun Huang Berna Özkale Qian Li Erdem Siringil Fajer Mushtaq Luca Di Tizio Bradley J. Nelson Salvador Pané Multi‐Scale Robotics Lab (MSRL) Institute of Robotics & Intelligent Systems (IRIS) ETH Zurich Zurich 8092 Switzerland Center for Nanophase Materials Sciences and Institute for Functional Imaging of Materials Oak Ridge National Laboratory Oak Ridge TN 37831 USA

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