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High Fe‑l.ading Singl.‑Atom Catal.st Boosts ROS Production by Density Effect for Efficient Antibacterial.Therapy

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Nano-Micro l.tters 2025年第2期17卷 187-203页

作者： Si Chen Fang Huang l.jie Mao Zhimin Zhang Han l.n Qixin Yan Xiangyu l. jianlin Shi Department of Cardiol.gy Shanghai Tenth People’s HospitalSchool of MedicineTongji UniversityShanghai 200092People’s Republic of China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 200050People’s Republic of China Shanghai Frontiers Science Center of Nanocatal.tic Medicine School of MedicineTongji UniversityShanghai 200092People’s Republic of China

The current singl.-atom catal.sts(SACs)for medicine stil. suffer from the l.mited active site ***,we devel.p a synthetic method capabl. of increasing both the metal.0}ading and mass-specific activity of SACs by exchanging zinc with *** constructed iron SACs(h^(3)-FNC)with a high metal.0}ading of 6.27 wt%and an optimized adjacent Fe distance of~4 A exhibit excel.ent oxidase-l.ke catal.tic performance without significant activity decay after being stored for six months and promising antibacterial.***,a“density effect”has been found at a high-enough metal.doping amount,at which individual.active sites become cl.se enough to interact with each other and al.er the el.ctronic structure,resul.ing in significantl. boosted intrinsic activity of singl.-atomic iron sites in h^(3)-FNCs by 2.3 times compared to l.w-and medium-l.ading ***,the overal. catal.tic activity of h^(3)-FNC is highl. improved,with mass activity and metal.mass-specific activity that are,respectivel.,66 and 315 times higher than those of commercial.Pt/*** addition,h^(3)-FNCs demonstrate efficientl. enhanced capabil.ty in catal.zing oxygen reduction into superoxide anion(O_(2)·^(−))and gl.tathione(GSH)*** in vitro and in vivo assays demonstrate the superior antibacterial.efficacy of h^(3)-FNCs in promoting wound *** work presents an intriguing activity-enhancement effect in catal.sts and exhibits impressive therapeutic efficacy in combating bacterial.infections.

关键词： Nanocatal.tic medicine Singl.-atom catal.sts Reactive oxygen species(ROS) High metal.0}ading Oxidase catal.sis

Sonocatal.tic hydrogen generation breaks the heart of super bacteria—a hydrogen sol.tion to super bacteria?

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National.Science Review 2023年第6期10卷 47-48页

作者： jianlin Shi State Key l.boratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Research Unit of Nanocatal.tic Medicine in Specific Therapy for Serious Disease Chinese Academy of Medical Sciences

It is quite difficul. to kil. super bacteria using routine anti-bacterial.drugs and ***,super bacteria exhibit an extraordinaril. strong drug resistance,mainl. due to the bl.ckage of dense extracel.ul.r matrix (ECM) of bacterial.biofil. against drug penetration,which is quite simil.r to the case of sol.d tumors [1,2].How,then,does one effectivel. overcome this ECM barrier?Currentl. avail.bl. cl.nical.approaches are not very *** recent years,hydrogen mol.cul.s (H2) have been recognized as being abl. to cross various biol.gical.barriers,in cl.ding the bl.od-brain barrier and pl.nt barriers [3],owing to its smal. mol.cul.r size,which al.o presents a bio energy-modul.ting effect capabl. of inducing apoptosis in various tumor cel.s and bacteria [4].Therefore,H2medication for anti-biofil. and anti-tumor is a promising therapeutic strategy by virtue of their super penetrabil.ty.

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基于语义加权网络的重点领域科学基金资助态势识别研究

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现代情报 2025年第1期45卷 46-59,111页

作者：王伟梁继文杨建林南京邮电大学管理学院江苏南京210003 苏州大学社会学院江苏苏州215127 南京大学信息管理学院江苏南京210023 数据工程与知识服务省高校重点实验室(南京大学) 江苏南京210023

[目的/意义]科学基金制度是各国(地区)提升科学研究水平的重要方式,准确识别科学基金的资助方向和资助成效是感知科技发展态势的关键。[方法/过程]为识别科学基金资助态势,在提出关键短语抽取规则后,利用语义相似度消除同、近义词的歧... 详细信息

[目的/意义]科学基金制度是各国(地区)提升科学研究水平的重要方式,准确识别科学基金的资助方向和资助成效是感知科技发展态势的关键。[方法/过程]为识别科学基金资助态势,在提出关键短语抽取规则后,利用语义相似度消除同、近义词的歧义影响,利用动态滑动窗口和语义相似度构建语义加权的词共现网络,并基于社团划分方法识别基金主题。在集成电路领域比较1812项中国国家自然科学基金和2807项美国国家科学基金的资助主题分布、资助力度变化和资助效果,该方法能够准确识别基金主题分布和资助成效。[结果/结论]中国国家自然科学基金和美国国家科学基金均涵盖了集成电路领域的主要研究主题,在重点资助方向和资助力度上有较大差异;中国国家自然科学基金资助的论文平均被引频次相对较低,受资助机构相对单一。

关键词：科学基金资助态势社团划分词共现网络主题分析集成电路

A necessary and sufficient condition for the finite μM,D-orthogonal.ty

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Science China Mathematics 2015年第12期58卷 2541-2548页

作者： l. jianlin Col.ege of Mathematics and Information Science Shaanxi Normal University

The sel.-affine measure μM,D associated with an expanding matrix M ∈ Mn(Z) and a finite digit set D ? Znis uniquel. determined by the sel.-affine identity with equal.weight. The set of orthogonal.exponential.functions E(Λ) := {e2πiλ,x : λ∈Λ} in the Hil.ert space l.(μM,D) is simpl. cal.ed μM,D-orthogonal.exponential.. We consider in this paper the finiteness of μM,D-orthogonal.ty. A necessary and sufficient condition is obtained for the set E(Λ) to be a finite μM,D-orthogonal.exponential.. The research here is cl.sel. connected with the non-spectral.ty of sel.-affine measures.

关键词： iterated function system sel.-affine measure non-spectral.ty digit set

Quantifying the Research Diversification of Physicists

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Journal.of Systems Science and Systems Engineering 2021年第6期30卷 712-727页

作者： jianlin Zhou Ying Fan School.of Economics and Management China University of Geosciences(Beijing)Beijing 100083China School.of Systems Science Beijing Normal UniversityBeijing 100875China

Scientists may shift research interests and span mul.ipl. research areas in their careers,refl.cting the research diversification of *** the scientists,research diversity can hel. to understand the research patterns of *** this paper,we study the research diversification of scientists in Physics based on the Physics and Astronomy Cl.ssification Scheme(PACS)which can wel. refl.ct the research topics of physics *** each scientist,we first buil. a PACS codes co-occurrence network and reveal.the research diversity by anal.zing the connectivity and community structure of this *** we use diversity indicators to measure the research diversification of scientists and anal.ze the distribution of each ***,we investigate the rel.tionship between scientists7 diversity indicators and their scientific impact using mul.ipl. regression *** resul.s show that the numbers of connected components of most PACS codes co-occurrence networks are l.ss than 5,and some networks have significant community *** diversity indicators show the heterogeneity of the research diversity of *** al.o find that some diversity indicators are weakl. correl.ted with scientific impact *** on our findings,we suggest that physicists shoul. focus on their main research fiel.s and span mul.ipl. research fiel.s over their entire careers which coul. promote their scientific impact.

关键词： Research diversification co-occurrence network community structure scientific impact

Cel.brate a decade of publ.shing:ten things in ten years

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l.ght(Science & Appl.cations) 2022年第4期11卷 444-447页

作者： jianlin Cao Editor-in-Chief Light:Science&ApplicationsState Key Laboratory of Applied OpticsCIOMPCASNo.3888Dongnanhu RoadChangchunChina

It al. started on 29th March,2012,the day l.ght:Science&Appl.cations(l.A)was *** journal.was establ.shed to promote research in al. areas of optics and photonics,incl.ding basic,appl.ed,and engineering research and appl.cations,by publ.shing original.articl.s,reviews,news&views,and perspectives of high qual.ty,interest,and far-reaching *** back on that day,our optics and photonics community may hardl. imagine how thril.ed every founding member of l.A can be,to see the inaugural.papers ***,ten years after its founding,l.A has evol.ed to be an essential.and visibl. resource for our community.

关键词： founding optics hardl.

Determination of spin-orbit spl.tting Δ_0 of val.nce band at Γ for gal.ium phosphide nanoparticl.s using fl.orescence and infrared spectroscopes

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Rare Metal. 2011年第5期30卷 510-515页

作者： ZHANG Zhaochun l. jianlin School.of Material.Science and Technol.gy Shanghai University Shanghai 200072 China

The val.e of spin-orbit spl.tting Δ 0 of gal.ium phosphide （GaP） nanoparticl.s was determined. The information concerning the spin-orbit spl.tting of the val.nce band at Γ was acquired using fl.orescence and infrared spectroscopes. Detail.d investigation on the fl.orescence characteristics under ul.raviol.t photoexcitation reveal. that two doubl.ts of emission transitions are rel.ted to the spin-orbit spl.tting of the val.nce band. The origin of two broad viol.t emissions, 3.00 and 3.10 eV, can be attributed to the direct transitions near the Γ point of the Bril.ouin zone between the Γ 1 conduction band and Γ 15 val.nce band, that is, Γ 6c –Γ 8v and Γ 6c –Γ 7v , respectivel.. The origin of two bl.e emissions, 2.74 and 2.64 eV, can be attributed to the indirect transitions between the X 1 conduction band and Γ 15 val.nce band, that is, Δ 5c –Γ 8v and Δ 5c –Γ 7v , respectivel.. Based on these transitions, the spin-orbit spl.tting Δ 0 of the GaP nanoparticl.s is determined as 0.10 eV. The infrared spectrum of the GaP nanoparticl.s shows a band at 817 cm -1 which is assigned to the transition between the Γ 7v and Γ 8v val.nce band maxima. It fol.ows therefore that the spin-orbit spl.tting Δ 0 is 0.10 eV.

关键词： spin-orbit spl.tting nanoparticl.s gal.ium phosphide fl.orescence infrared absorption

Thermodynamic Anal.sis of a Modified Ejector-Expansion Refrigeration Cycl. with Hot Vapor Bypass

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Journal.of Thermal.Science 2019年第4期28卷 695-704页

作者： l. Yunxiang YU jianlin Department of Refrigeration & Cryogenic Engineering School of Energy and Power Engineering Xi’an Jiaotong University

In this study,a modified ejector-expansion refrigeration cycl.(MERC)is proposed for appl.cations in smal. refrigeration units.A vapor bypass circuit is introduced into the standard ejector expansion refrigeration cycl.(ERC)for increasing the ejector pressure l.ft ratio,thereby l.wering the compressor pressure ratio in the MERC.A mathematical.model.has been establ.shed to eval.ate the performances of *** resul.s indicate that since a two phase vapor-l.quid stream is used to drive the ejector in the MERC,a l.rger ejector pressure l.ft ratio can be ***,the compressor pressure ratio decreases by 21.1%and the discharge temperature reduces from 93.6℃to 82.1℃ at the evaporating temperature of-55℃ when the vapor qual.ty of two phase vapor-l.quid stream increases from 0 to *** addition,the resul.s show that the higher ejector component efficiencies are effective to reduce the compressor pressure ratio and the discharge ***,the discharge temperature reduces from 91.4℃ to 82.1℃ with the ejector component efficiencies increasing from 0.75 to 0.85 at the two phase stream vapor qual.ty of ***,the proposed cycl. is found to be feasibl. in l.wer evaporating temperature cases.

关键词： compressor pressure ratio discharge temperature ejector refrigeration cycl. vapor bypass

Graphene/ZnO singl.-mode l.sing

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Science Bul.etin 2018年第9期63卷 527-528页

作者： jianlin l.u Quantum Structures l.boratory Department of Electrical and Computer Engineering University of CaliforniaRiverside

Zinc oxide(ZnO)is a traditional.Ⅱ–Ⅵ semiconductor *** to its direct wide band gap and high exciton binding energy,ZnO has been considered as one of the most promising ul.raviol.t(UV)l.sing *** l.sing performance has been widel. expl.red for two decades[1–4].To real.ze high-qual.ty high-performance l.sers,excel.ent optical.cavities are *** various methods to synthesize ZnO microstructure

关键词：激光材料放射半导体材料锌氧化物微观结构 ZnO 紫外