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SSRN 2024年

作者： Hu, Yuandu Du, Xiaoyang Li, Chengnian Wang, Jianying Li, Zhi Zhu, Jintao Yang, Yajiang Department of Materials Science and Engineering School of Physical Science and Engineering Beijing Jiaotong University Beijing100044 China Hubei Key Lab of Materials Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan430074 China Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province Ministry of Education School of Materials Science and Engineering Hubei University Wuhan430062 China State Key Laboratory of Molecular Engineering of Polymers [Fudan University Shanghai200438 China

There are few explorations that have integrated multiple properties into photonic microobjects in a facile and controlled manner. In this work, we present a straightforward method to integrate different functions into individual photonic microobject. Droplet-based microfluidics is used to produce uniform droplets of an aqueous dispersion of monodispersed SiO2 nanoparticles (NPs). The droplets evolve into opal-structured photonic microballs upon complete evaporation of the water. After infiltration of an aqueous solution of acrylamide (AAm) and acrylic acid (AAc) monomers into the interstices among SiO2 NPs, opal-structured SiO2 NPs/pAAm-co-AAc hydrogel composite photonic microballs are obtained upon UV irradiation. Afterwards, a wet etching process is introduced to etch the microballs in a controlled manner, yielding individual photonic microball composing of an SiO2 NPs/pAAm-co-AAc composite opal core and a neat pAAm-co-AAc shell. The pendant carboxylic acid groups in the skeleton of the hydrogel matrix can be further utilized to react with positively charged compounds, such as Ruthenium compound containing fluorescent polymers. The resulting photonic microobjects eventually feature with localized stimulus-responsive property and multiple colors under different modes. The multifunctional photonic microobjects may have potential applications in the fields of miniaturized devices and anticounterfeiting materials. © 2024, The Authors. All rights reserved.

关键词： Hydrogels

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Efficient and targeted drug/siRNA co-delivery mediated by reversibly crosslinked polymersomes toward anti-inflammatory treatment of ulcerative colitis (UC)

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Nano Research 2019年第3期12卷 659-667页

作者： Xin Xu Weijing Yang Qiujun Liang Yanan Shi Wenxin Zhang Xiao Wang Fenghua Meng Zhiyuan Zhong Lichen Yin Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano and Soft Materials (FUNSOM) the Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou 215123 China Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China

Co-delivery of anti-inflammatory siRNA and hydrophilic drug provides a promising approach for the treatment of ulcerative colitis (UC). However, lack of a suitable and efficient co-delivery carrier poses critical challenge against their utilization. We herein developed macrophage-targeting, reversibly crossli nked polymersomes (TKPR-RCP) based on the TKPR-modified, poly(ethyle ne glycol)-b-poly(trimethylene carbonate-codithiolane trimethylene carbonate)-b-polyethylenimine (PEG-P(TMC-DTC)-PEI) triblock copolymer, which could efficiently encapsulate TNF-α siRNA and dexamethasone sodium phosphate (DSP) in their hydrophilic core. The cationic PEI segments provided additional electrostatic interactions with cargo molecules to promote the encapsulatiion, and disulfide crosslinking of the polymersome membrane endowed the TKPR-RCP with high colloidal stability. Because the cationic PEI was embedded in the hydrophilic core, the polymersomes displayed neutral surface charge and thus possessed high serum stability. The TKPR-RCP co-encapsulating TNF-α siRNA and DSP could be efficiently internalized by macrophages (~98%) and undergo redox-responsive membrane de-crosslinking to accelerate cargo release in the cytoplasm, thus inducing efficient gene silencing and anti-inflammatory effect .Intravenous injectio n of the co-delivery TKPR-RCP mediated pote nt and cooperative anti-inflammatory effect in inflamed colons of UC mice, and significantly prevented animals from colonic injury. This study therefore provides a promising approach for the co-delivery of hydrophilic drug/siRNA toward the treatment of inflammatory bowel diseases.

关键词： ulcerative colitis (UC) anti-inflammatory therapy polymersomes reversible crosslinking siRNA/drug co-delivery macrophage targeting

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Interfacial molecular anchor for ambient all-bladed perovskite solar modules

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Joule 2025年第5期9卷

作者： Zhu, Xuejie Yu, Dongqi Zhou, Xin Wang, Nan Liu, Hong Liang, Zihui Wu, Congcong Wang, Kai Jin, Dayong Liu, Shengzhong Yang, Dong State Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Dalian116023 China School of Physics and Electronic Technology Liaoning Normal University Dalian116029 China Interdisciplinary Research Center for Biology and Chemistry Liaoning Normal University Liaoning Dalian116029 China Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials School of Materials Science and Engineering Hubei University Wuhan430062 China National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430073 China Huanjiang Laboratory Zhejiang University Zhuji311800 China School of Mathematical and Physical Sciences Faculty of Science University of Technology Sydney SydneyNSW Australia Eastern Institute for Advanced Study Eastern Institute of Technology Ningbo China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China

Ambient blade coating of perovskite solar modules shows great potential for large-scale manufacture and commercialization. However, blade coating nanometer-thick buffer layers typically results in a nonuniform surface due to particle instability and aggregation, often leading to insufficient integration and destabilization of the crystallographic lattice in the overlying perovskite layer. Herein, we introduce a layer of "molecular glue" that can effectively anchor the solute that suspends the monodisperse SnO2 nanoparticles into a uniform thin film and adhere it to the top perovskite during the mechanical blading process. Leveraging this holistic nanoparticle-anchoring strategy, we have achieved a seamlessly bonded cathode heterojunction, resulting in a record efficiency of 26.11% for small cells and the highest efficiency so far of 22.76% (certified at 21.60%) for mini-modules. Importantly, these ambiently all-blade-coated devices exhibit an extended lifetime of approximately 1,500 h, as verified by ISOS-O testing, indicating great promise for commercialization. © 2025

关键词： Perovskite

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Fiber Bridging Induced Toughening of Perovskite for Resistance to Cracks Propagation

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SSRN 2022年

作者： Jin, Bowen Ren, Lizhi Gou, Yanzhuo Ma, Ruihao Liang, Zihui Li, Zongbao Dong, Binhai Zhao, Li Wang, Shimin Wu, Congcong Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials School of Materials Science and Engineering Hubei University Wuhan430062 China National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430073 China School of Materials Science and Engineering Wuhan Textile University Wuhan430200 China

Perovskite solar cells (PSCs) emerging as a promising photovoltaic technology are regarded as the competitor against the dominant silicon-based solar cells. Despite great progress achieved in power conversion efficiency (PCE) during the past decade, they are not currently viable in commercialization not only because of the intrinsic chemical instability but also the unrevealed reliability. The reliability of solar panels is a critical assessment to ensure constant operation in the lifespan of the warranty, which is associated with strength against external forces, such as the physical strike of hailstones or wind load. The mechanical properties test is an essential process for solar panels to enter the market;however, it is rarely considered for perovskite photovoltaics. In this work, we emphasized the mechanical properties improvement by incorporating a natural one-dimensional material, ethyl cellulose (EC), within the perovskite films, working as the fiber bridging component to increase the toughness of the intrinsic brittle perovskite crystals. As a result, the EC incorporated perovskite layer exhibited much-improved mechanical properties with Young's modulus 3 times higher than that of pristine film, as well as showed robust stability under various harsh conditions. © 2022, The Authors. All rights reserved.

关键词： Solar power generation

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An Investigation on Reaction Regularity of Mn-Fe-Ceox Catalyst System: Guide the Synthesis of Low-Temperature Nh3-Scr Catalytic Filter

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SSRN 2024年

作者： Zhang, Yanbing Wang, Xie Liang, Banglei Ren, Haibo Zhang, Xiaoxia Liu, Xingye Zhang, Xiang Liu, Xuelian Song, Yang Zheng, Weijie Zhang, Huazhi College of Materials and Chemical Engineering Henan University of Urban Construction Pingdingshan467000 China College of Advanced Manufacturing Fuzhou University Jinjiang362251 China School of Chemistry and Chemical Engineering Anqing Normal University Anqing246011 China College of Environmental Science and Engineering North China Electric Power University Beijing102206 China Key Laboratory of Fine Chemical Application Technology of Luzhou Luzhou646099 China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research the Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China Luzhou Vocational and Technical College China

A series of catalytic filters (Mn-Fe-CeOx/PPS) with satisfied NO conversion and physical properties were synthesized by the redox method. The Mn-Fe-Ce ternary catalyst system and corresponding oxidation-reduction equation were established by using the low-valent oxidation characteristics of cerium and iron to react with the high-valent reduction manganese. Furthermore, the optimal catalytic filter synthesized under the guidance of reaction regularity has excellent physicochemical properties such as high NO conversion (100% at 180 oC), high stability, low loading capacity (66.8 g/m2), and strong binding ability, making it suitable for complex operating conditions. Particularly, in the Mn-Fe-Ce ternary catalyst system, the coexistence of Ce4+ and Ce3+ causes surface oxygen vacancies, uneven local charge distribution and additional chemisorbed oxygen, which are conducive to the low-temperature selective catalytic reduction (L-T SCR) reaction. Meanwhile, there are also high valence Mn4+ and Fe3+ in catalyst system, which can promote the oxidation of NO and further improve the L-T SCR reaction. © 2024, The Authors. All rights reserved.

关键词： Physicochemical properties

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Interfacial Engineering by P-Methylphenylmethylammonium Iodide for Efficient Carbon Counter Electrode (Ce)-Based 2d/3d Hybrid Perovskite Solar Cells

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SSRN 2022年

作者： Cao, Duoling Li, Zuhong Xu, Ya Li, Wenbo Zhong, Hang Huang, Yin Zhang, Xu Wan, Li Zhang, Xiuhua Li, Yuebin Ren, Xiaoming Wang, Xianbao Eder, Dominik Wang, Shimin Key Laboratory for the Green Preparation and Application of Functional Materials Ministry of Education Hubei Key Laboratory of Polymer Materials Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Faculty of Materials Science and Engineering Hubei University Wuhan430062 China Institute of Materials Chemistry Technische Universität Wien Getreidemarkt 9/165 Vienna1060 Austria

Defects at the surface and grain boundaries of three-dimensional (3D) organic-inorganic metal halide perovskite films lead to the non-radiative recombination of charge carriers and accelerate perovskite decomposition. In turn, this deteriorates the power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). Herein, p-methylphenylmethylammonium iodide (p-MePMAI) was reacted with a 3D perovskite to in-situ form a two-dimensional (2D) perovskite upper layer. This upper layer passivated the surface and grain boundary defects of the 3D perovskite film, improving its surface hydrophobicity. As a result, a carbon counter electrode (CE)-based 2D/3D PSC achieved a maximum PCE of up to 15.63%, which was much higher than that of an unmodified 3D MAPbI3 PSC (12.16%). Moreover, the unencapsulated 2D/3D device maintained 80% of its initial PCE after exposure to air for 700 h with a relative humidity (RH) of 40±5%. This research opens a new pathway for the successful construction of stable and efficient 2D/3D PSCs with organic ammonium salts. © 2022, The Authors. All rights reserved.

关键词： Perovskite solar cells

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Synthesis of curcumin polyprodrug via click chemistry and construction of dual-drug-loaded nano platform for highly efficient tumor treatment

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Chinese Chemical Letters 2025年第8期36卷

作者： Haijiao Li Mingzu Zhang Jinlin He Jian Liu Xingwei Sun Peihong Ni College of Chemistry Chemical Engineering and Materials Science State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis Soochow University Suzhou 215123 China Institute of Functional Nano and Soft Materials (FUNSOM) Soochow University Suzhou 215123 China Intervention Department The Second Affiliated Hospital of Soochow University Suzhou 215004 China

Micellar nanostructures formed by amphiphilic polymers are prone to dissociation when the in vivo environment changes. Polyprodrug micelles can cross-link with other hydrophobic drugs through non-covalent bonds, which has the advantage of fixed structure and avoids the use of chemical cross-linking agents. In this study, we prepared a polyprodrug with hydrophobic curcumin (CUR) and hydrophilic poly(ethylene glycol) (PEG) in the main chain through a click reaction between CUR derivatives containing azide groups and di-alkynly-capped PEG. Due to the presence of benzene rings in the structure of CUR, the polyprodrug can form non-covalent cross-linked nanoparticles (NCCL-CUR NPs) through hydrophobic and π - π stacking interaction. The structure, molecular weight, and self-assembly properties of the polyprodrug were characterized. The anti-cancer drug camptothecin (CPT) was encapsulated in the polyprodrug nanoparticles, producing dual-drug-loaded nanoparticles (abbreviated as CPT@NCCL-CUR NPs). The test results indicate that the NPs have reductive responsiveness and can release the original drugs CUR and CPT in phosphate buffer (PB) solution containing glutathione (GSH), while remaining stability in physiological environment. Cell and in vivo experiments further demonstrate that the dual-drug-loaded CPT@NCCL-CUR NPs can inhibit the growth of tumor through synergistic effects. This work provides a valuable approach for the preparation of amphiphilic polyprodrug with anti-tumor CUR as the backbone, and the stable dual-drug-loaded NPs containing both CUR and CPT through non-covalent cross-linking for synergistic therapy.

关键词： Camptothecin Click reaction Curcumin Non-covalent cross-linking Polyprodrug Stimuli responsiveness Synergistic therapy

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Low-cost 0D and 2D carbon material co-decorated titanium dioxide ternary heterojunction for rapid and efficient bacteria killing under visible light

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cMat 2024年第2期1卷 20-29页

作者： Yuan Li Peng-Feng Yuan Chao-Feng Wang Xiang-Mei Liu Sheng-Li Zhu Zhao-Yang Li Zhen-Duo Cui Hui Jiang Paul KChu Shui-Lin Wu Biomedical Materials Engineering Research Center Hubei Key Laboratory of Polymer MaterialsMinistry-of-Education Key Laboratory for the Green Preparation and Application of Functional MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhanChina School of Materials Science&Engineering Peking UniversityBeijingChina School of Materials Science&Engineering The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjinChina School of Health Science&Biomedical Engineering Hebei University of TechnologyTianjinChina Department of Physics City University of Hong KongHong KongChina Department of Materials Science and Engineering City University of Hong KongHong KongChina Department of Biomedical Engineering City University of Hong KongHong KongChina

Recently,the issue of bacterial resistance has gotten worse because of the overuse of *** newborn superbacteria,such as vancomycin-resistant bacteria,were hard to kill,inspiring researchers to find new ways to kill the bacteria ***_(2) was used as an efficient photocatalyst for water split-ting and pollutant ***,the weak efficiency limited the application to solve the drug-resistance ***,the incorpora-tion of low-cost 0D carbon quantum dots(CQDs)and 2D graphene oxide(GO)was pursued to amplify the visible light absorption capabilities of TiO_(2) and thereby elevate its photocatalytic *** forming the heterogeneous interface of CQDs and TiO_(2),CQDs converted part of visible light into wave-length less than 400 nm using the up-conversion *** modification of CQDs enabled electrons to be easily transferred from the conduction band of CQDs to the conduction band of TiO_(2).Meanwhile,GO can act as an electron acceptor,reduce the recombination efficiency of holes and electrons,and transfer the photogenerated electrons in the redox reaction in the heterogeneous *** of the excellent absorption of GO,TiO_(2)/CQDs/GO reached 57.8℃after 20 min irradiation under 1.5 times sunlight,which provided a prerequisite for photodynamic antibacterial therapy/photothermal antibacterial therapy synergistic antibacterial ***_(2)/CQDs/GO possessed an anti-bacterial efficiency as high as 99.3%toward Staphylococcus aureus which has a bright future in disinfection in vivo and medical devices as well as water sterilization.

关键词： anitbacterial carbon quantum dots graphene oxide heterojunction TiO_(2)

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A Z-scheme heterojunction of ZnO/CDots/C_(3)N^(4) for strengthened photoresponsive bacteria-killing and acceleration of wound healing

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Journal of Materials Science & Technology 2020年第22期54卷 1-11页

作者： Yiming Xiang Qilin Zhou Zhaoyang Li Zhenduo Cui Xiangmei Liu Yanqin Liang Shengli Zhu Yufeng Zheng Kelvin Wai Kwok Yeung Shuilin Wu Hubei Key Laboratory of Polymer Materials Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhan 430062China The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China School of Materials Science&EngineeringTianjin UniversityTianjin 300072China Department of Orthopaedics&Traumatology Li KaShing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing 100871China

The abuse of antibiotics is leading to the emergence of resistant *** this work,a drug-free composite of ZnO/CDots/g-C3N4 with Z-scheme heterojunction was developed,which was employed to kill bacteria effectively within a very short time under the irradiation of visible light due to the enhanced photocatalytic and photothermal *** this system,the CDots acted as a bridge between g-C3N4 and ZnO,effectively inhibiting the recombination of photo-generated electrons with holes and consequently enhancing the photocatalytic *** addition,CDots endowed the system with excellent photothermal *** a result,the antibacterial efficacy of ZnO/CDots/g-C3N4 composite against *** and *** reached up to 99.97%and 99.99%respectively,after 15 min of visible light irradiation,due to the synergistic action of photo-inspired radical oxygen species and *** Zn ions released from the composite promoted the growth of fibroblasts,which accelerated the wound healing process.

关键词： Heterostructure Z-scheme Antibacterial Wound healing g-C3N4

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Flame retardant and smoke inhibition properties of microencapsulated ammonium polyphosphate on polyvinyl chloride

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Progress in Natural Science: Materials International 2025年

作者： Changbo Zhang Rongke You Hongyang Cheng Yongfang Jiang Xue-Qing Zhan Ning Ma Fang-Chang Tsai Hubei Key Laboratory of Polymer Materials Key Laboratory for the Green Preparation and Application of Functional Materials (Ministry of Education) Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China

In this study, a network compound (HP-DP) was produced by polymerization of phosphonitrilic chloride trimer (HCCP) and p-phenylenediamine (PPD), and microencapsulated ammonium polyphosphate (APP) to create flame-retardant APP@HP-DP, which was then incorporated into polyvinyl chloride (PVC) to prepare PVC composites. Adding APP@HP-DP flame retardant to PVC composites enhanced carbon yield, thermal stability and increased LOI of the composites from 23.1 % to 28.6 %. With 9.5 wt% APP@HP-DP, the peak heat release rate (PHRR) and peak smoke production rate (PSPR) dropped by 47.2 % and 23.2 %, respectively, compared to the original PVC composite. Mechanical property tests showed no change in tensile strength or elongation at the break for PVC composites with APP@HP-DP addition. Therefore, the addition of APP@HP-DP to PVC composites has significantly improved its flame retardancy and smoke suppression without affecting its mechanical properties, which can effectively reduce the potential danger of fire.

关键词： APP Flame retardant Microencapsulation PVC composites Smoke inhibition

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