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Demonstration of biophoton-driven DNA replication via gold nanoparticle-distance modulated yield oscillation

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Nano Research 2021年第1期14卷 40-45页

作者： Na Li Daoling Peng Xianjing Zhang Yousheng Shu Feng Zhang lei jiang Bo Song School of Optical-Electrical Computer Engineering University of Shanghai for Science and TechnologyShanghai 200093China State Key Laboratory of Respiratory Disease Key Laboratory of Oral MedicineGuangzhou Institute of Oral DiseaseStomatology HospitalDepartment of Biomedical EngineeringSchool of Basic Medical SciencesGuangzhou Medical UniversityGuangzhou 511436China School of Chemistry South China Normal UniversityGuangzhou 510006China State Key Laboratory of Medical Neurobiology Institute for Translational Brain ResearchMOE Frontiers Center for Brain ScienceDepartment of NeurologyHuashan HospitalFudan UniversityShanghai 200032China Biomedical Nanocenter School of Life SciencesInner Mongolia Agricultural UniversityHohhot 010011China Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China

Biologically,there exist two kinds of syntheses:photosynthesis and ATP-driven *** light harvesting of photosynthesis is known to achieve an efficiency of〜95%by the quantum energy transfer of ***,how the ATP-driven biosynthesis reaches its high efficiency still remains *** triphosphates(dNTPs)in polymerase chain reaction(PCR)adopt the identical way of ATP to release their energy,and thus can be employed to explore the ATP energy ***,using a gold nanoparticle(AuNP)enhanced PCR(AuNP-PCR),we demonstrate that the energy released by phosphoanhydride-bond(PB)hydrolysis of dNTPs is in form of photons(PB-photons)to drive DNA replication,by modulating their resonance with the average inter-AuNP distance(D).The experimental results show that both the efficiency and yield of PCR periodically oscillate with D increasing,indicating a quantized process,but not simply a thermal *** PB-photon wavelength is further determined to 8.4 *** these results support that the release,transfer and utilization of bioenergy are in the form of *** findings of ATP-energy quantum conversion will open a new avenue to the studies of high-efficiency bioenergy utilization,biochemistry,biological quantum physics,and even brain sciences.

关键词： intrinsic biophoton DNA replication polymerase chain reaction(PCR) gold nanoparticle high-efficiency energy utilization biological quantum physics

Investigation on the intrinsic wetting thresholds of liquids by measuring the interaction forces of self-assembled monolayers

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Nano Research 2022年第5期15卷 4344-4349页

作者： Yulong Li Shaofan He Zhe Xu Zhonglong Luo Hongyan Xiao Ye Tian lei jiang Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China School of Chemistry and Environment Beihang UniversityBeijing 100191China School of Mechanical Engineering Anhui University of TechnologyMa’anshan 243032China Ji Hua Laboratory Foshan 528000China

90°is the limitation oflyophilicity and lyophobicity for ideal surface for centuries,but it has been proved to be contradictory on some *** symmetrical surfaces with different surface tensions can attract or repel each other in ***,at the molecular level,the Iyophilicity or lyophobicity is the results of interactions between the liquids and ***,using atomic force microscope(AFM)to measure interaction forces between symmetrical self-assembled monolayers(SAMs)in different liquids,we found that the SAMs repel each other when the surfaces are hydrophilic whereas attract when hydrophobic in *** contact angle corresponding to the transition of attraction to repulsion is approximate to 65°,defined as the intrinsic wetting threshold(IWT)of *** ethylene glycol(EG),dimethyl sulfoxide(DMSO),N,N-dimethyl formamide(DMF),the IWTs could be determined by changes of adhesion forces between *** research redefined the IWTs for liquids,which is the essential guide to both basic theory and applications of wettability.

关键词： wettability intrinsic wetting threshold force curve adhesion force hydrogen bond

Designing artificial ion channels with strict K+/Na+ selectivity toward next-generation electric-eel-mimetic ionic power generation

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National Science Review 2023年第12期10卷 193-202页

作者： Jipeng Li Linhan Du Xian Kong Jianzhong Wu Diannan Lu lei jiang Wei Guo State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and Engineering Hainan University Department of Chemical Engineering Tsinghua University South China Advanced Institute for Soft Matter Science and Technology Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices School of Emergent Soft MatterSouth China University of Technology Department of Chemical and Environmental Engineering University of California Research Institute for Frontier Science Beihang University Center for Quantum Physics and Intelligent Sciences Department of Physics Capital Normal University

A biological potassium channel is> 1000 times more permeable to K+than to Na+and exhibits a giant permeation rate of ～108ions/*** is a great challenge to construct artificial potassium channels with such high sele ctivity and ion conduction ***,we unveil a long-overlo oked structural feature that underpins the ultra-high K+/Na+*** carrying out massive molecular dynamics simulation for ion transport through carbonyl-oxygen-modified bi-layer graphene nanopores,we find that the twisted carbonyl rings enable strict potassium selectivity with a dynamic K+/Na+selectivity ratio of 1295 and a K+conduction rate of 3.5 × 107ions/s,approaching those of the biological ***,atomic trajectories of K+permeation events suggest a dual-ion transport mode,*** like-charged potassium ions are successively captured by the nanopores in the graphene bi-layer and are interconnected by sharing one or two interlayer water *** dual-ion behavior allows rapid release of the exiting potassium ion via a soft knock-on mechanism,which has previously been found only in biological ion *** a proof-of-concept utilization of this discovery,we propose a novel way for ionic power generation by mixing KCl and NaCl solutions through the bi-layer graphene nanopores,termed potassium-permselectivity enabled osmotic power generation(PoPee-OP G).Theoretically,the biomimetic device achieves a very high power density of> 1000 W/m2with graphene sheets of <1% *** study provides a blueprint for artificial potassium channels and thus paves the way toward next-generation electric-eel-mimetic ionic power generation.

关键词： artificial ion channel bi-layer graphene dehydrated ion transport bio-inspired materials energy conversion

Self-Exfoliation of Flake Graphite for Bioinspired Compositing with Aramid Nanofiber toward Integration of Mechanical and Thermoconductive Properties

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Nano-Micro Letters 2022年第10期14卷 235-247页

作者： Limei Huang Guang Xiao Yunjing Wang Hao Li Yahong Zhou lei jiang Jianfeng Wang College of Materials Science and Engineering Hunan UniversityChangsha 410082People’s Republic of China College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082People’s Republic of China CAS Key Laboratory of Bio-Inspired Materials and Interface Sciences Technical Institute of Physics and Chemistry ChineseAcademy of SciencesBeijing 100190People’s Republic of China

Flexible yet highly thermoconductive materials are essential for the development of next-generation flexible electronic ***,we report a bioinspired nanostructured film with the integration of large ductility and high thermal conductivity based on self-exfoliated pristine graphene and three-dimensional aramid nanofiber network.A self-grinding strategy to directly exfoliate flake graphite into few-layer and few-defect pristine graphene is successfully developed through mutual shear friction between graphite particles,generating largely enhanced yield and productivity in comparison to normal liquid-based exfoliation strategies,such as ultrasonication,high-shear mixing and ball *** by nacre,a new bioinspired layered structural design model containing three-dimensional nanofiber network is proposed and implemented with an interconnected aramid nanofiber network and high-loading graphene nanosheets by a developed continuous assembly strategy of sol-gel-film *** is revealed that the bioinspired film not only exhibits nacre-like ductile deformation behavior by releasing the hidden length of curved aramid nanofibers,but also possesses good thermal transport ability by directionally conducting heat along pristine graphene nanosheets.

关键词： Graphene Aramid nanofiber Self-grinding exfoliation Bioinspired structure Functional material

Simulating molten pool features of shipbuilding steel subjected to submerged arc welding

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Journal of Iron and Steel Research International 2023年第3期30卷 569-579页

作者： Ming Zhong lei jiang Hang-yu Bai Somnath Basu Zhan-jun Wang Cong Wang Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina Department of Metallurgical Engineering and Materials Science Indian Institute of Technology BombayMumbai 400076MaharashtraIndia

Submerged arc welding process has been simulated to investigate the molten pool features of EH36 shipbuilding *** case only involved the surface tension model,and another one involved both the surface tension model and the interface tension *** role of interface tension during welding is revealed,and the evolution of molten pool morphology is understood by comparing the surface temperature distribution,surface tension and interface tension distribution,and the streamline of the molten pool for the two *** the interface tension model is disregarded,a flow conducive to the outward expansion is formed in the surface area of the molten pool,resulting in a small weld depth-to-width *** applying the interface tension model,the expanding outward flow is restrained,which leads to a deep penetration morphology with a large weld depth-to-width ratio due to the inward flow governed by the Marangoni *** simulation results involving the interface tension model have been verified with satisfactory predictability.

关键词： Numerical simulation Molten pool flow Submerged arc welding Interface tension model Shipbuilding steel

Bioinspired Three-Dimensional Nanoporous Membranes for Salinity-Gradient Energy Harvesting

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Accounts of Materials Research 2023年第1期4卷 86-100页

作者： Jian Wang Yahong Zhou lei jiang College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu 610059People’s Republic of China Key Laboratory of Bio-inspired Materials and Interface Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

CONSPECTUS:Salinity-gradient energy represents a widespread,clean,environmentally friendly,and sustainable source of renewable energy,which has attracted great attention in the past *** harness this energy,interdisciplinary efforts from chemistry,materials science,environmental science,and nanotechnology have been made to develop efficient and low-cost approaches and materials for energy *** reverse electrodialysis(RED)systems are generally based on ion-exchange membranes,which usually suffer from ineffective mass transport,high membrane resistance,limited pore size,and concentration polarization,resulting in low output power density and poor energyconversion *** one promising material,nanofluidic channels with their unique transport properties,which can be attributed to nanoconfinement effect,enable highperformance reverse electrodialysis to efficiently harvest salinity-gradient *** to the unique porous architectures,three-dimensional(3D)nanoporous membranes demonstrate great potential for harvesting salinity-gradient *** is generally known that the porous membranes can be prepared by many methods;however,there are some shortcomings such as high costs,poor ion conductance,and fragility limiting the practical *** simple and versatile approaches to lowcost fabrication of 3D nanoporous membranes have been developed in recent *** example,self-assembly provides an effective route of constructing functional materials and organizing them into 3D *** this Account,we mainly review our recent progress in the design and fabrication of bioinspired 3D nanoporous membranes for salinity-gradient energy ***,we give a brief introduction to bioinspired nanochannel membranes(BNMs)with diverse structural dimensions,and nanofluidic channel membranes may lead to technological breakthroughs and thus act as an emerging platform for harvesting salinity-gradient ***,we discuss the

关键词： porous harvesting versatile

Driving Force of Molecular/Ionic Superfluid Formation

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CCS Chemistry 2021年第8期3卷 1258-1266页

作者： Xiqi Zhang Bo Song lei jiang Key Laboratory of Bio-Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190 School of Optical-Electrical Computer Engineering University of Shanghai for Science and TechnologyShanghai 200093 School of Future Technology University of Chinese Academy of SciencesBeijing 101407

Ordered-and high-flux flow of molecules and ions in biological channels is considered as a quantumconfined superfluid,which is highly important in chemical reactions and bioinformation ***,the driving forces for these ordered arrangements of molecules and ions in confined spaces have not been ***,we demonstrate that the driving force of molecular/ionic superfluid formation is the attraction-repulsion balance of particles under the effect of interfacial confinement.

关键词： driving force superfluid attractionrepulsion balance van der Waals equilibrium distance Debye length

ANALYSIS OF PIEZOELECTRIC ENERGY HARVESTING DEVICE WITH ADJUSTABLE RESONANCE FREQUENCY

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Journal of Electronics(China) 2012年第3期29卷 310-318页

作者： jiang lei Li Yuejuan Marvin Cheng School of Mechanical Electronic & Information Engineering China University of Mining & Technology Beijing 100083 China Department of Mechanical and Aerospace Engineering West Virginia University Morgantown WV 26505 U.S.A

This paper presents an analytic method that adjusts resonance frequency of a piezoelectric vibration energy harvester. A mathematical model that estimates resonance frequency of cantilever is also proposed. Through moving an attached mass and changing its weight on the cantilever beam, resonance frequency of adopted piezoelectric device can be adjusted to match the frequency of ambient vibration sources, which is critical in order to harvest maximum amount of energy. The theoretical results are validated by experiments that move different masses along experimental cantilever beams. The results demonstrate that resonance frequency can be adjusted by an attached mass located at different positions on the cantilever beam. Different combinations of operational conditions that harvest maximum amount of energy are also discussed in this paper.

关键词： Piezoelectric Energy harvesting Resonance frequency

PIV EXPERIMENTAL RESEARCH OF INSTANTANEOUS FLOW CHARACTERISTICS OF CIRCULAR ORIFICE SYNTHETIC JET

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Journal of Hydrodynamics 2007年第4期19卷 453-458页

作者： XU Jing-lei SHA jiang LIN Chun-feng ZHANG Kun-yuan School of Energy and Power Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

The instantaneous flow characteristics of circular orifice synthetic jet was experimentally studied by a phase-locked Particle Image Velocimetry （PIV） system. The instantaneous flowfields, including the forming, developing and breaking down of the vortex for the jet were clearly shown by the PIV experimental results. As the basis of the study of the instantaneous flow, 36 images were taken and phase-averaged for each condition. The PIV experiment was mainly focused on the time evolution of the vortex pairs formed in the push cycle, the saddle point existing in the suck cycle, the variation of the centerline velocity in the whole cycle and the cross-stream velocity profiles and their self-similarity. Finally, the orifice depth was changed from 1.5 mm to 2 mm and 3.5 mm in order to study the effect of different orifice depths on the flow structure, which shows that at all stream wise sections, the peak of the mass flux and momentum flux increases as the orifice depth increases. Furthermore, the nondimensional distance of the mass flux from the exit is the maximum, while the nondimensional distance of the centerline velocity peak from the exit is the minimum, and nondimensional distance of the momentum flux from the exit section is between them.

关键词： circular synthetic jet Particle Image Velocimetry (PIV) phase-locked