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2024 Conference on Lasers and Electro-Optics, CLEO 2024

作者： Hao, Senyue Adkins, Aaron J. Zhang, Yitian Zhou, Chao Department of Electrical & Systems Engineering Washington University Saint Louis United States Imaging Science PhD Program Washington University Saint Louis United States Department of Biomedical Engineering Washington University Saint Louis United States

To implement optical coherence tomography on photonic chips, we developed optimized and experimentally validated silicon nitride-based components for photonic integrated circuits in order to achieve high sensitivity a... 详细信息

ISBN: (纸本)9781957171395

关键词： Photonic integrated circuits

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Reactive surface intermediates over Ni-grafted TiO2 nanotube arrays towards hydrogen evolution reaction in alkaline and chloride media

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International Journal of Hydrogen Energy 2023年第81期48卷 31479-31490页

作者： Cheshideh, Hamed Chen, Hsueh-Yu Liao, Kuo-Wei Wang, Kai-Chin Chen, Guan-Cheng Huang, Hsin-Chih Wang, Chen-Hao Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei106335 Taiwan Global Development Engineering Program National Taiwan University of Science and Technology Taipei106335 Taiwan Advanced Manufacturing Research Center National Taiwan University of Science and Technology Taipei106335 Taiwan

In this study, the Ni nanoparticles grafted TiO2 nanotubes electrode improved by surface reconstruction (s-Ni/TiO2/Ti) shows the facile hydrogen evolution reaction (HER) in the alkaline and chloride solutions. Nickel nanoparticles were electrochemically grafted on the anodic TiO2 nanotubes under different conditions. The heat treatment of TiO2 nanotubes contributes to the enhancement of electrical conductivity and template adherence. The surface reconstruction is indicated to create heterojunction intermediates, Ni(OH)2 and NiOOH, on the surface of Ni nanoparticles. An extremely low overpotential of 126 mV is required for HER on the s-Ni/TiO2/Ti electrode in 1.0 M KOH solution, showing higher activity than Pt/C. Besides, the developed electrode exhibits an overpotential of 127 mV for HER in 1.0 M KOH + 0.5 M NaCl solution. The long-term stability over 100 h suggests a highly active and inexpensive material choice for substituting the precious electrocatalysts in corrosive media such as seawater. © 2023 Hydrogen Energy Publications LLC

关键词： Titanium dioxide

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A pro-healing short-chain antimicrobial peptide that inhibits sepsis

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science China materials 2024年第11期67卷 3727-3741页

作者： Zekai Ren Xin Ding Yumei Wang Han Wu Xin Liu Yang Cao Hailin Cong Youqing Shen Bing Yu College of Chemistry and Chemical Engineering College of Materials Science and EngineeringInstitute of Biomedical Materials and EngineeringQingdao UniversityQingdao 266071China State Key Laboratory of Bio-Fibers and Eco-Textiles Qingdao UniversityQingdao 266071China School of Materials Science and Engineering Shandong University of TechnologyZibo 255000China Key Laboratory of Biomass Chemical Engineering of Ministry of Education Center for Bionanoengineeringand Department of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China

Chronic wounds experiencing infections with multidrug-resistant bacteria can be fatal,and in severe cases can lead to *** peptides are widely used in the field of wound care for their broad-spectrum antibacterial properties and good anti-drug *** prepared bacterial cell membrane chromatography(BCMC)by extracting cell membranes of bacteria using SiO_(2)microspheres as stationary phase.A library of antimicrobial peptides was synthesized in solid phase and screened by BCMC to identify the antimicrobial peptide LKAHR(later named LS5),which is characterized by biosafety,broad-spectrum antibacterial activity,and drug resistance,and a gelatin-based antimicrobial hydrogel(LS5-gel)was prepared to be better applied to ***5-gel was found to have good in vivo bactericidal properties as well as the ability to promote wound healing in a wound healing *** the sepsis model,LS5 was found to have a significant inhibitory effect on sepsis *** is important for the selection of next-generation antimicrobial drugs and the treatment of chronic wound healing.

关键词： antimicrobial peptide chronic wounds sepsis antimicrobial hydrogel chronic wound healing

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Viral inactivation by light

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eLight 2022年第1期2卷 237-254页

作者： Mohammad Sadraeian Le Zhang Farzaneh Aavani Esmaeil Biazar Dayong Jin Present Address:Institute for Biomedical Materials and Devices(IBMD) Faculty of ScienceUniversity of Technology SydneySydneyNSW 2007Australia Department of Oral and Maxillofacial Surgery Division of Regenerative Orofacial MedicineUniversity Hospital Hamburg-Eppendorf20251 HamburgGermany Department of Biomedical Engineering Islamic Azad UniversityTonekabon BranchTonekabonIran UTS‑SUStech Joint Research Centre for Biomedical Materials&Devices Department of Biomedical EngineeringCollege of EngineeringSouthern University of Science and TechnologyShenzhenGuangdongChina

Nowadays,viral infections are one of the greatest challenges for medical sciences and human *** antiviral compounds and chemical inactivation remain inadequate,physical approaches based on irradiation provide new potentials for prevention and treatment of viral infections,without the risk of drug resistance and other unwanted side *** across the electromagnetic spectrum can inactivate the virions using ionizing and non-ionizing *** review highlights the anti-viral utility of radiant methods from the aspects of ionizing radiation,including high energy ultraviolet,gamma ray,X-ray,and neutron,and non-ionizing photo-inactivation,including lasers and blue light.

关键词： Antiviral therapy Enveloped virus Photo-inactivation Ionizing radiation Nuclear radiations

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Two-photon MINFLUX with doubled localization precision

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eLight 2022年第1期2卷 58-67页

作者： Kun Zhao Xinzhu Xu Wei Ren Dayong Jin Peng Xi Department of Biomedical Engineering College of Future TechnologyPeking UniversityBeijing 100871China Wallace H.Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory UniversityAtlanta30332 GeorgiaUSA UTS‑SUStech Joint Research Centre for Biomedical Materials&Devices Department of Biomedical EngineeringCollege of EngineeringSouthern University of Science and TechnologyShenzhenGuangdong 518055China National Biomedical Imaging Center Peking UniversityBeijing 100871China

Achieving localization with molecular precision has been of great interest for extending fluorescence microscopy to *** pioneers this transition through point spread function(PSF)engineering,yet its performance is primarily limited by the signal-to-background *** we demonstrate theoretically that two-photon MINFLUX(2p-MINFLUX)could double its localization precision through PSF engineering by nonlinear ***ér-Rao Bound(CRB)is studied as the maximum localization precision,and CRB of two-photon MINFLUX is halved compared to single-photon MINFLUX(1p-MINFLUX)in all three ***,in order to achieve same localization precision with 1p-MINFLUX,2p-MINFLUX requires only 1/4 of fluorescence *** simultaneous two-photon excitation of multiple fluorophore species,2p-MINFLUX may have the potential for registration-free nanoscopy and multicolor tracking.

关键词： Super-resolution microscopy Single-molecule localization MINFLUX Two-photon microscopy

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PeakForce Quantitative Nanomechanical Information for Reverse Micelle Synthesis

PeakForce Quantitative Nanomechanical Information for Revers...

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2023 Photonics North, PN 2023

作者： Cui, Linan Oliveira, Pedro Q. Sask, Kyla N. Turak, Ayse Z. McMaster University School of Biomedical Engineering Hamilton Canada McMaster University Department of Engineering Physics Hamilton Canada McMaster University Department of Materials Science and Engineering Hamilton Canada Concordia University CeNSR Department of Physics Montreal Canada

ISBN: (纸本)9798350326734

PeakForce Quantitative Nanomechanical Mapping (QNM), an atomic force microscopy (AFM) technique that extracts quantitative material property data, was applied to study the infiltration of precursor salts into di-block copolymer reverse micelles to better understand nanoparticle formation. Based on the Young's modulus map obtained, the relative micelle modulus (unloaded vs loaded) was found to increase with the amount of salt loading. This provides critical in-situ insight into the formation of controllable nanoparticle patterns for energy, biosensing, and optics applications. © 2023 IEEE.

关键词： Micelles

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On the Specificity of Nanozymes: A Perspective

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Chinese Journal of Chemistry 2024年第13期42卷 1515-1522页

作者： Gen Wei Shuje Liu Yung-Kang Peng Hui Wei Department of Biomedical Engineering College of Engineering and Applied SciencesNanjing National Laboratory of MicrostructuresJiangsu Key Laboratory of Artificial Functional MaterialsNanjing UniversityNanjingJiangsu 21023China Department of Chemistry.City University of Hong Kong Hong Kong 999077Hong Kong SARChina State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical EngineeringChemistry and Biomedicine Innovation Center(ChemBIC)Nanjing UniversityNanjingJiangsu 210023China NMPA Key Laboratory for Biomedical Optics HangzhouZhejiang 310018China

We have compiled eight promising strategies for enhancing the specificity and selectivity of nanozymes,as depicted in the comprehensive summary *** exhibit intricate and sophisticated structures,including substrate channels and active sites,which can inform the design of *** of these structural features and the application of facet engineering/doping techniques can significantly enhance the catalytic specificity of ***,the use of Molecularly Imprinted Polymers(MiPs)to coat nanozymes represents an effective approach to impart substrate ***,several straightforward stopgap strategies have been devised to improve nanozyme specificity for analytical applications,such as the integration of biorecognition elements and nanozyme sensor arrays through surface modification.

关键词： Nanozymes Enzymes Catalytic activity Specificity Perspective

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Near-room-temperature waste heat recovery through radiative cooling for both daytime and nighttime power generation

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Journal of materials Chemistry A 2023年第28期11卷 15183-15195页

作者： Chang, Sih-Wei Chen, Yen-Jen Wan, Dehui Chen, Hsuen-Li Department of Materials Science and Engineering National Taiwan University Taipei Taiwan Institute of Biomedical Engineering Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu Taiwan Center of Atomic Initiative for New Materials National Taiwan University Taipei Taiwan

With the rapid growth in global energy consumption, the recovery of waste heat is becoming an important issue. Nevertheless, the recovery of near-room-temperature waste heat remains challenging because the slight temperature difference with the surroundings leads to extremely low thermoelectric power generation. In this study, we combined a daytime radiative cooling (DRC) technology with a thermoelectric generator (TEG) to efficiently recover near-room-temperature waste heat. We investigated the effects of the thermal radiation and thermal conduction properties of DRC materials on near-room-temperature waste heat recovery (WHR). We designed a hierarchical micro-nano h-BN/ZnO composite (MNHZC) that possessed an outstanding daytime radiative cooling ability and moderate thermal conductivity. With this hierarchical h-BN/ZnO composite, we achieved record-high levels of thermoelectric power generation of 225.3 and 412.3 mW m−2 during the daytime and nighttime, respectively, with enhancements in thermoelectric power of 1030 and 190%, respectively. The attractive power generation ability of the MNHZC/TEG system suggests its great potential in low-grade waste heat recovery and environmental energy harvesting by consistently generating power in both the daytime and nighttime. © 2023 The Royal Society of Chemistry

关键词： Waste heat

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Systematic in vitro and in vivo study on biodegradable binary Zn-0.2 at%Rare Earth alloys(Zn-RE:Sc,Y,La-Nd,Sm-Lu)

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Bioactive materials 2023年第6期24卷 507-523页

作者： Shaokang Du Yunong Shen Yufeng Zheng Yan Cheng Xiaoxue Xu Dafu Chen Dandan Xia Academy for Advanced Interdisciplinary Studies Peking UniversityBeijing100871China School of Materials Science and Engineering Peking UniversityBeijing100871China School of Biomedical Engineering Faculty of Engineering and Information TechnologyUniversity of Technology SydneyNSW2007Australia Laboratory of Bone Tissue Engineering Beijing Laboratory of Biomedical MaterialsBeijing Research Institute of Traumatology and OrthopaedicsBeijing Jishuitan HospitalBeijing100035China Department of Dental Materials Peking University School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical Devices&Beijing Key Laboratory of Digital Stomatology&Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health&NMPA Key Laboratory for Dental MaterialsBeijing 100081China

biomedical implants and devices for tissue engineering in clinics,mainly made of polymers and stiff metallic materials,require possibly secondary surgery or life-long *** metals for biomedical implants and devices exhibit huge potential to improve the prognosis of *** this work,we developed a new type of biodegradable binary zinc(Zn)alloys with 16 rare earth elements(REEs)including Sc,Y,La to Nd,and Sm to Lu,*** effects of REEs on the alloy microstructure,mechanical properties,corrosion behavior and in vitro and in vivo biocompatibility of Zn were systematically investigated using pure Zn as *** Zn-RE alloys generally exhibited improved mechanical properties,and biocompatibilities compared to pure Zn,especially the tensile strength and ductility of Zn-RE alloys were dramatically *** the Zn-RE alloys,different REEs presented enhancement effects at varied extent.Y,Ho and Lu were the three elements displaying greatest improvements in majority of alloys properties,while Eu,Gd and Dy exhibited least ***,the Zn-RE alloys were comparable with other Zn alloys and also exhibited superior properties to Mg-RE *** in vivo experiment using Zn-La,Zn-Ce,and Zn-Nd alloys as tibia bone implants in rabbit demonstrated the excellent tissue biocompatibility and much more obvious osseointegration than the pure Zn control *** work presented the significant potential of the developed Zn-RE binary alloys as novel degradable metal for biomedical implants and devices.

关键词： Biodegradable metals Zn-Rare Earth alloys Mechanical property Biodegradation behavior Biocompatibility

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Continuous Lithium-Ion Extraction From Seawater and Mine Water With a Fuel Cell System and Ceramic Membranes

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Energy & Environmental materials 2024年第6期7卷 254-261页

作者： Cansu Kök Lei Wang Jean Gustavo A.Ruthes Antje Quade Matthew E.Suss Volker Presser INM–Leibniz Institute for New Materials Campus D2266123Saarbr¨uckenGermany Department of Materials Science&Engineering Saarland UniversityCampus D2266123Saarbr¨uckenGermany Leibniz Institute for Plasma Science and Technology Felix-Hausdorff-Straße 217489GreifswaldGermany Faculty of Mechanical Engineering Technion–Israel Institute of TechnologyHaifa3200003Israel Wolfson Department of Chemical Engineering Technion–Israel Institute of TechnologyHaifa3200003Israel Grand Technion Energy Program Technion–Israel Institute of TechnologyHaifa3200003Israel Saarene–Saarland Center for Energy Materials and Sustainability Campus C4266123Saarbr¨uckenGermany

The demand for electronic devices that utilize lithium is steadily increasing in this rapidly advancing technological *** high-purity lithium in an environmentally friendly way is challenging by using commercialized ***,we propose the first fuel cell system for continuous lithium-ion extraction using a lithium superionic conductor membrane and advanced *** fuel cell system for extracting lithium-ion has demonstrated a twofold increase in the selectivity of Li^(+)/Na^(+)while producing *** data show that the fuel cell with a titania-coated electrode achieves 95%lithium-ion purity while generating 10.23 Wh of energy per gram of *** investigation revealed that using atomic layer deposition improved the electrode's uniformity,stability,and electrocatalytic *** 2000 cycles determined by cyclic voltammetry,the electrode preserved its stability.

关键词： atomic layer deposition cation selectivity electrochemical lithium-ion extraction fuel cell

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