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Mimicking Mytilus edulis foot protein:A versatile strategy for robust biomedical coatings

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The Innovation 2024年第5期5卷 73-82,72页

作者： Zeyu Du Feng Qiao Liping tong Wentai Zhang Xiaohui Mou Xin Zhao Manfred FMaitz huaiyu Wang Nan huang Zhilu Yang school of Materials Science and Engineering Department of CardiologyThird People’s Hospital of Chengdu Affiliated with Southwest Jiaotong UniversitySouthwest Jiaotong UniversityChengdu 610031China Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine The Tenth Affiliated Hospital of Southern Medical UniversityDongguan 523059China institute of Biomedicine and Biotechnology Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Department of Biomedical Engineering The Hong Kong Polytechnic UniversityHung HomHong KongChina Max Bergmann Center of Biomaterials Dresden Leibniz Institute of Polymer Research DresdenHohe Strasse 601069 DresdenGermany The Key Laboratory of Biomedical Imaging Science and System Chinese Academy of SciencesShenzhen 518055China GuangZhou Nanchuang Mount Everest Company for Medical Science and technology Guangzhou 510670China

Universal coatings with versatile surface adhesion,good mechanochemical robustness,and the capacity for secondary modification are of great scientific ***,incorporating these advantages into a system is still a great ***,we report a series of catechol-decorated polyallylamines(CPAs),denoted as pseudo-Mytilus edulis foot protein 5(pseudoMefp-5),that mimic not only the catechol and amine groups but also the backbone of *** can fabricate highly adhesive,robust,multifunctional polyCPA(PCPA)coatings based on synergetic catechol-polyamine chemistry as universal building *** to the interpenetrating entangled network architectures,these coatings exhibit high chemical robustness against harsh conditions(HCl,pH 1;NaOH,pH 14;H2O2,30%),good mechanical robustness,and wear *** addition,PCPA coatings provide abundant grafting sites,enabling the fabrication of various functional surfaces through secondary ***,the versatility,multifaceted robustness,and scalability of PCPA coatings indicate their great potential for surface engineering,especially for withstanding harsh conditions in multipurpose biomedical applications.

关键词： wear catechol versatile

AI for organic and polymer synthesis

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Science china chemistry 2024年第8期67卷 2461-2496页

作者： Xin Hong Qi Yang Kuangbiao Liao Jianfeng Pei Mao Chen Fanyang Mo hua Lu Wen-Bin Zhang Haisen Zhou Jiaxiao Chen Lebin Su Shuo-Qing Zhang Siyuan Liu Xu huang Yi-Zhou Sun Yuxiang Wang Zexi Zhang Zhunzhun Yu Sanzhong Luo Xue-Feng Fu Shu-Li You Center of chemistry for Frontier Technologies Department of ChemistryZhejiang UniversityHangzhou 310027China Center of Basic Molecular Science Department of ChemistryTsinghua UniversityBeijing 100084China Guangzhou National Laboratory Guangzhou 510005China Center for Quantitative Biology Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China State Key Laboratory of Molecular Engineering of polymers Department of Macromolecular ScienceFudan UniversityShanghai 200433China school of Materials Science and Engineering Peking UniversityBeijing 100871China Beijing National Laboratory for Molecular Sciences Center for Soft Matter Science and EngineeringKey Laboratory of Polymer Chemistry and Physics of Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China AI for Science(AI4S)-Preferred Program Shenzhen Graduate SchoolPeking UniversityShenzhen 518055China State Key Laboratory of chemical Biology Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200032China Department of chemical Sciences National Natural Science Foundation of ChinaBeijing 100085China State Key Laboratory of Organometallic chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

Recent years have witnessed the transformative impact from the integration of artificial intelligence with organic and polymer synthesis. This synergy offers innovative and intelligent solutions to a range of classic problems in synthetic chemistry. These exciting advancements include the prediction of molecular property, multi-step retrosynthetic pathway planning, elucidation of the structure-performance relationship of single-step transformation, establishment of the quantitative linkage between polymer structures and their functions, design and optimization of polymerization process, prediction of the structure and sequence of biological macromolecules, as well as automated and intelligent synthesis platforms. Chemists can now explore synthetic chemistry with unprecedented precision and efficiency, creating novel reactions, catalysts, and polymer materials under the datadriven paradigm. Despite these thrilling developments, the field of artificial intelligence(AI) synthetic chemistry is still in its infancy, facing challenges and limitations in terms of data openness, model interpretability, as well as software and hardware support. This review aims to provide an overview of the current progress, key challenges, and future development suggestions in the interdisciplinary field between AI and synthetic chemistry. It is hoped that this overview will offer readers a comprehensive understanding of this emerging field, inspiring and promoting further scientific research and development.

关键词： organic synthesis polymer synthesis machine learning prediction chemical database automated synthesis

π-Extended giant dimeric acceptor as a third component enables highly efficient ternary organic solar cells with efficiency over 19.2%

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Journal of Energy chemistry 2024年第8期95卷 263-270,I0006页

作者： Mengran Peng Haotian Wu Liming Wu Jianhua Chen Ruijie Ma Qunping Fan hua Tan Weiguo Zhu Hongxiang Li Junqiao Ding school of chemical Science and technology Yunnan UniversityKunming 650500YunnanChina Department of Electrical and Electronic Engineering Research Institute for Smart Energy(RISE)Guangdong-Hong Kong-Macao(GHM)Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and DevicesThe Hong Kong Polytechnic UniversityKowloonHong Kong 999077China State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049ShaanxiChina school of Materials Science and Engineering Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and ApplicationsChangzhou UniversityChangzhou 213164JiangsuChina College of polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065SichuanChina

Ternary strategy with a suitable third component is a successful strategy to improve the photovoltaic performance of organic solar cells(OSCs).Very recently,Y-series based giant molecule acceptors or oligomerized acceptors have emerged as promising materials for achieving highly efficient and stable binary OSCs,while application as third component for ternary OSCs is *** a novelπ-extended giant dimeric acceptor,GDF,is developed based on central Y series core fusion and rigid BDT as linker,and then incorporated into the state-of-the-art PM1:PC6 system to construct ternary *** GDF has a near planar backbone,resulting in increasedπ-conjugation,excellent crystallinity,and good electron transport *** GDF is introduced into the PM1:PC6 system,it ensues in a cascade like the lowest unoccupied molecular orbitals(LUMO)energy level alignment,a complementary absorption band with PM1 and PC6,higher and balanced hole and electron mobility,slightly smaller domain size,and a higher exciton dissociation probability for PM1:PC6:GDF(1:1.1:0.1)blend *** a consequence,the PM1:PC6:GDF(1:1.1:0.1)ternary OSC achieves a champion PCE of 19.22%,with a significantly higher open-circuit voltage and short-circuit current density,compared to 18.45%for the PM1:PC6(1:1.2)binary *** findings show that employing aπ-extended giant dimeric acceptor as a third component significantly improves the photovoltaic performance of ternary OSCs.

关键词： Giant dimeric acceptor Third component Ternary organic solar cells

Hyperbranched polyamidoamine protective layer with phosphate and carboxyl groups for dendrite-free Zn metal anodes

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Chinese chemical Letters 2024年第10期35卷 495-499页

作者： Xinxiu Yan Xizhe huang Yangyang Liu Weishang Jia hualin Chen Qi Yao Tao Chen Key Laboratory of General chemistry of the National Ethnic Afairs Commission School of Chemistry and EnvironmentSouthwest Minzu UniversityChengdu 610041China institute of smart city and inteligent transportation Southwest Jiaotong UniversityChengdu 611756China school of Materials Science and Engineering Guangdong University of Petrochemical TechnologyMaoming 525000China

Zinc metal is regarded as one of the most promising anodes for Zn-based batteries in next-generation energy storage ***,the dendrite growth and interfacial corrosion lead to poor reversibility and cycle life of Zn ***,we synthesize a 2-phosphate-1,2,4-butane tricarboxylic acid modified hyperbranched polyamidoamine containing rich terminal groups of phosphate and carboxyl(HPC)as modified layer for the Zn ***,the in situ acid-etching promotes the exposure of(002)Zn plane and the generated salt-polymer complexes could be adhered to the Zn anodes *** greatly favors the uniform deposition of Zn and inhibits interfacial ***,stable HPC@Zn anode plating/stripping for over 1200 h at a high areal capacity of 4 mAh/cm^(2)and a current density of 4 m A/cm^(2)is *** study provides a new avenue of hyperbranched polymer in interfacial design for highly reversible and stable Zn metal anodes.

关键词： Zn anode Znmetal batteries Surface chemistry Functional groups Hyperbranched polyamidoamine

Beyond Conventional Degradation:Catalytic Solutions for Polyolefin Upcycling

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CCS chemistry 2024年第2期6卷 313-333页

作者： Lan Gan Zhongwen Dong Haofeng Xu Huidong Lv Guixia Liu Fan Zhang Zheng huang State Key Laboratory of Organometallic chemistry Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200032 school of chemistry and Material Sciences Hangzhou Institute of Advanced StudyHangzhou 310024 National Engineering Laboratory of Eco-Friendly polymeric Materials(sichuan) College of ChemistrySichuan UniversityChengdu 610064

Polyolefins(POs,i.e.,polyethylenes,ethylene/α-olefin copolymers,and polypropylenes)are the most ubiquitous synthetic macromolecular materials in modern *** widespread use and low recovery rate after extensive usage have caused significant resource waste and environmental *** recycling of POs provides an efficient approach to unravelling the polymer chain to various ***,conventional chemical recycling methods,including pyrolysis,hydrocracking,and oxidation,require high-energy input(typically>500℃)and/or the use of environmentally unfriendly chemicals,leading to complex product *** this minireview,based on recent representative works,we summarize and highlight catalytic strategies addressing these issues in PO recycling from two perspectives:(1)employing advanced catalysts or technique designs to overcome the challenges in conventional chemical deconstruction approaches;and(2)developing novel tandem/cascade catalytic systems for highly selective PO upcycling under relatively mild *** hope that this minireview will help researchers better understand the state of the art of PO chemical recycling and inspire more innovative and efficient ideas for this fast-developing field.

关键词： catalytic strategies chemical recycling deconstruction polyolefins upcycling

Controlled Synthesis of Proton-Conductive Porous Organic polymer Gels via Electrostatically Stabilized Colloidal Formation

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CCS chemistry 2024年第7期6卷 1767-1775页

作者： Bin Chen Yifeng Kuang Lu Liu Linkun Cai Zaoming Wang Panchao Yin Liangbin huang Cheng Gu State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSouth China University of TechnologyGuangzhou 510640 College of polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065 Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510641 South china Advanced institute for Soft Matter Science and technology South China University of TechnologyGuangzhou 510640 institute for Integrated Cell-Material Sciences Institute for Advanced StudyKyoto UniversityKyoto 606-8501

Porous organic polymers(POPs)have attracted extensive interest due to their structural diversity and predesigned ***,the majority of POPs are synthesized as insoluble and unprocessable powders,which greatly impede their advanced applications because of limited mass transport and inadaptation for device ***,we report a controlled synthetic strategy of macroscopic POP gels by a cation-stabilized colloidal formation mechanism,which is widely adaptable to a large variety of tetra-/tri-amino build blocks for the synthesis of Tröger’s base-linked POP gels,aerogels,and ionic *** POP gels combined the integrated advantages of hierarchically porous structures and tailorable mechanical stiffness,whereas they could load substantial amounts of phosphoric acids and construct unimpeded transport pathways for proton conduction,exhibiting unprecedented proton conductivity at subzero *** strategy offers a new solution to the intractable processing issues of POPs toward device applications with cutting-edge performances.

关键词： porous organic polymers Tröger’s base linkage gels superprotonic conduction subzero temperatures

Theoretical studies on the potential energy surfaces and vibrational energy levels of HXeF and HXeCl

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Science china chemistry 2007年第1期50卷 7-10页

作者： huang ZhengGuo XIE DaiQian ZHU hua Laboratory of Mesoscopic chemistry Institute of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210093China Department of chemistry Sichuan UniversityChengdu 610064China

The potential energy surfaces for the electronic ground state of the HXeCl and HXeF molecules are constructed by using the internally contracted multi-reference configuration interaction with the Davidson correction (icMRCl+Q) method and large basis sets. The stabilities and dissociation barriers are identified from the potential energy surfaces. The three-body dissociation channel is found to be the dominate dissociation channel for HXeCl, while two dissociation channels are possible and competitive for HXeF. Based on the obtained potentials, vibrational energy levels of HXeCl and HXeF are calculated using the Lanczos algorithm. Our theoretical results are in good agreement with the available observed values. Particularly, the calculated fundamental frequency of the H—Xe stretching vibration including the Xe matrix effect of HXeCl is found to be 1666.6 cm?1, which is only 17.6 cm?1 higher than the recently observed value of 1649 cm?1.

关键词： HXeF HXeCl vibrational energy level potential energy surface

Revealing the dominant factor of domain boundary resistance on bulk conductivity in lanthanum lithium titanates

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Journal of Energy chemistry 2022年第10期31卷 354-359,I0009页

作者： Xuefeng Zhou Cong Gao Dandan Wang Shang Peng Lujun huang Wenge Yang Wen-hua Zhang Xiang Gao sichuan research Center of New Materials Institute of Chemical MaterialsChina Academy of Engineering PhysicsChengdu 610200SichuanChina Center for High Pressure Science and technology Advanced research Beijing 100094China school of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina school of Materials and Energy Yunnan UniversityKunming 650500YunnanChina

Perovskite-type lithium lanthanum titanates(LLTO)display a high bulk ionic conductivity and are considered a promising electrolyte for building up to advanced solid-state Li-ion *** LLTO crystals contain a high concentration of intrinsically formed 90ο-rotated domain boundaries(DBs)serving as barriers to bulk Li-ion ***,the mechanism of how the DB concentration and DB resistance can compete with each other to determine the bulk conductivity of LLTO is still *** we report a comprehensive study of LLTO compounds,aimed to unravel the mechanism and hence explore new path(s)for further improving the conductivity of this *** results show that both the sintering temperature and chemical composition can affect significantly the domain structures in *** is found that a decrease in the DB concentration is always accompanied by increased DB resistance due to the increased lattice mismatch at DBs,and vice *** unifying the electrochemical impedance spectroscopy and transmission electron microscopy analysis,it is clearly shown that the high DB resistance,instead of DB concentration,acts as the dominant factor governing the bulk conductivity of *** results thus renew the conventional understanding of the bulk Li-ion conduction in LLTO and shed light on developing novel LLTO electrolyte materials with improved ionic conductivity.

关键词： Solid electrolyte La_(2)/_(3-x)Li_(3x)TiO_(3) Conductivity Domain Domain boundary

Endothelium-Mimicking Multifunctional Coating Modified Cardiovascular Stents via a Stepwise Metal-Catechol-(Amine)Surface Engineering Strategy

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research 2020年第1期2020卷 1768-1787页

作者： Ying Yang Peng Gao Juan Wang Qiufen Tu Long Bai Kaiqin Xiong hua Qiu Xin Zhao Manfred FMaitz huaiyu Wang Xiangyang Li Qiang Zhao Yin Xiao Nan huang Zhilu Yang Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China institute of Health and Biomedical Innovation Queensland University of TechnologyBrisbane 4059Australia Australia-china Centre for Tissue Engineering and Regenerative Medicine Queensland University of TechnologyBrisbane 4059Australia Department of Biomedical Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Max Bergmann Center of Biomaterials Leibniz Institute of Polymer Research DresdenHohe Strasse 601069 DresdenGermany institute of Biomedicine and Biotechnology Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China State Key Laboratory of Medicinal chemical Biology Key Laboratory of Bioactive MaterialsMinistry of EducationCollege of Life SciencesNankai UniversityTianjinChina

Stenting is currently the major therapeutic treatment for cardiovascular ***,the nonbiogenic metal stents are inclined to trigger a cascade of cellular and molecular events including inflammatory response,thrombogenic reactions,smooth muscle cell hyperproliferation accompanied by the delayed arterial healing,and poor reendothelialization,thus leading to restenosis along with late stent *** address prevalence critical problems,we present an endothelium-mimicking coating capable of rapid regeneration of a competently functioning new endothelial layer on stents through a stepwise metal(copper)-catechol-(amine)(MCA)surface chemistry strategy,leading to combinatorial endothelium-like functions with glutathione peroxidase-like catalytic activity and surface *** from the stable nitric oxide(NO)generating rate at the physiological level(2:2×10^(-10) mol/cm^(2)/min lasting for 60 days),this proposed strategy could also generate abundant amine groups for allowing a high heparin conjugation efficacy up to∼1μg/cm^(2),which is considerably higher than most of the conventional heparinized *** resultant coating could create an ideal microenvironment for bringing in enhanced antithrombogenicity,anti-inflammation,anti-proliferation of smooth muscle cells,re-endothelialization by regulating relevant gene expressions,hence preventing restenosis in *** envision that the stepwise MCA coating strategy would facilitate the surface endothelium-mimicking engineering of vascular stents and be therefore helpful in the clinic to reduce complications associated with stenosis.

关键词： coating stepwise bringing