Joule
·
2024
·
IF 38.6
Yaohua Wang,Yuanyuan Meng,Chang Liu,Ruikun Cao,Bin Han,Lisha Xie,Ruijia Tian,Xiaoyi Lu,Zhenhua Song,Jun Li,Shuncheng Yang,Congda Lu,Ziyi Ge
Summary Organometallic halide perovskites are promising candidates for high-performance flexible perovskite solar cells (f-PSCs). However, f-PSCs still face significant challenges in the formation of uniform and highly crystalline films with mechanical robustness. Here, a zwitterion elastomer (SBMA) was introduced into a perovskite film. SBMA cross-linked in situ to regulate the nucleation and crystallization of the perovskite by forming an intermediate SBMA-PbI 2 adduct. In addition, the polar sulfo-end group on SBMA offered chemical passivation to perovskite vacancies and created a large dielectric environment, screening the carrier capture process and suppressing nonradiative recombination. The zwitterionic fusion within the cross-linked elastomers, residing on grain boundaries, endowed the flexible perovskite films with instantaneous self-curing ability under mild treating conditions (40°C for 15 min). The resultant device achieved a record-breaking power conversion efficiency (PCE) of 24.51% (certified 24.04%) and demonstrated excellent mechanical sustainability and durability, retaining over 90% of the initial PCE after 10,000 bending cycles.
研究领域:
材料科学
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能源技术
·
光电化学
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高影响因子
npj Materials Degradation
·
2023
·Vol. 7
·期 1
·1-10
·
IF 5.1
Yang Jingzhi,Ran Yami,Huang Luyao,Ren Chenhao,Hao Xiangping,Ma Lingwei,Zhang Dawei
2-hydroxyethyl methacrylate (HEMA), poly(ethylene glycol) (PEG), and zwitterionic polymers are currently considered the most extensively studied antifouling hydrogel coatings. However, systematic identification of these coatings to unleash their potential properties is tremendously under-represented. Here, we report a high-throughput optimizing strategy that combines highly miniaturized hydrogel synthesis and screening to fine design zwitterion-based hydrogel coatings. Compared with the traditional one-by-one synthesis and characterization methods, the proposed high-throughput strategy accelerated the discovery of candidate materials with a high-efficiency and cost-effective approach. To tailor multiple parameters of coatings, 1575 unique coating combinations with continuous gradients were prepared only required 600 μL reactant. The mechanical stability and drug-loading capacity of the coating spots were sequentially evaluated via immersion swelling, flow, tape-peeling, and dye-retaining tests. This strategy could efficiently reveal the composition/structure-function relationships of the hydrogel coatings and also other materials, which is promising for the rapid screening and design of desired implantable device surfaces.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jianchao Li,Zhenxv Wu,Zixue Jiao,Yu Wang,Zongliang Wang,Min Guo,Gang Li,Liqiang Wang,Peibiao Zhang
Postoperation adhesion, as a worldwide problem, are often accompanied by serious complications and cause severe pain to patients, and traditional medicines and commercial anti-adhesion barriers have limited protective effects. So, we designed a novel injective, antifouling and photo-crosslinked polygalacturonic acid (PGA) hydrogel barrier composed of PGA methacrylate (PGAMA) and 2-methacryloyloxyethyl phosphorylcholine (MPC) with excellent effect of covering the wound and preventing adhesion. The product termed, as PGAMA-MPC, enhanced hydration as expected with the introduction of abundant MPC, showing an obvious resistance to protein, cell, and microorganism. Simultaneously, as injectable medical materials, stable attachment to the wound and low invasiveness for tissue were provided by photo-crosslinking of PGAMA-MPC hydrogel during Minimally invasive surgery. In the rat model of cecal injury, the PGAMA-MPC hydrogel effectively prevented the postoperative peritoneal adhesion, showing an obvious protective effect within 7 d and the excellent ability to repair of cecum and abdominal wall after 14 d. Compared with the control group, the rats treated with PGAMA-MPC3 almost recovered to the level of the normal level. Furthermore, we found that PGAMA-MPC3 hydrogel significantly reduced the expression of inflammation and deposition of fibrin. The underlying mechanism of anti-adhesion was subsequently confirmed by analyzing the signaling pathway TGF-β1. The PGA-MPC3 hydrogel promoted fibrinolysis by blocking the activation of TGF-β1/Smad3 pathway. In conclusion, we developed an available polysaccharide hydrogel for rapid repair of peritoneum and prevention of postoperative adhesion, possessing an extensive application as medical materials.
研究领域:
生物医学工程
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材料科学
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外科手术
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药剂学
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高影响因子
Journal of Physical Chemistry C
·
2020
·
IF 4.189
Ximing Huang,Jingchao Chen,Chunxia Yan,Haixia Guo,Huibo Shao
Defects on self-assembled monolayers (SAMs) could have detrimental impact on their functionalities; thus, to optimize performances, researchers seek to manipulate the defects of SAMs. In this work, we functionalized the defects of 1-undecanethiol SAMs using a zwitterion, cysteine. This modification with cysteine endowed the defects with a specific behavior of charge reversal. Scanning electrochemical microscopy and cyclic voltammetry both fully exhibited this charge reversal behavior. This peculiar ability of charge reversal at the defects would endow the SAMs specific functions: the SAMs have reversible electrochemical response to charged molecules. On the basis of this principle, the functionalized SAMs could be applied in specific amino acids recognition. This work supplied a practical way to take advantage of the defects of SAMs and offers some contribution to the fields of defect engineering and molecular recognition.
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高影响因子
Journal of Biomedical Nanotechnology
·
2023
·Vol. 19
·期 8
·1495-1502
·
IF 2.9
Pan Yiting,Bai Haihong,Zhang Guocheng,Liu Wei,Wu Yanqi,Chen Hui,Tian Ying,Yang Zhenqi,Feng Duan,Liu Jiaqi,Wu Dan
N-Glycosylation is one of the most common and important protein posttranslational modifications. Structural aberrations of the N-glycans branching from glycoproteins are closely related to various disease occurrences and progressions. Therefore, global systematic identification of disease-related
N-glycans not only largely facilitates the understanding of their cellular functions but also promotes the development of new diagnostic and therapeutic biomarkers. However, N-glycans are low in abundance and hydrophilic, thereby hindering high-throughput, and large-scale N-glycan analysis
and N-glycoproteome research. Here, a zwitterion-functionalized polymer brush-grafted silica hybrid hydrophilic material (poly-SBMA-S) was fabricated by in situ growth of polymeric [2-(methacryloyloxy)ethyl]dimethyl(3-sulfopropyl)ammonium hydroxide (SBMA) chains on porous silica particles
through a surface-initiated atom transfer radical polymerization technique, and it was used as a new stationary phase for highly selective N-glycan enrichment. Human plasma demonstrated 64 N-glycans due to the densely packed polyzwitterion chains and the significantly increased coverage of
hydrophilic binding sites, demonstrating the high potential of the new hydrophilic matrix in the profiling and analysis of N-glycans and other hydrophilic targets.
研究领域:
生物化学
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蛋白质组学
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医学诊断
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Bin Wu,Weiyi Fan,Ruochen Wang,Naixin Wang,Yue Shen,Mwema Wanjiya,Yanhui Wu,Quan-Fu An
Organic molecule desalination with nanofiltration has important practical application significance. Zwitterion-based nanofiltration membranes (ZNFMs) with selective channels for monovalent salts have been prepared to improve the separation performance. However, most ZNFMs tend to be restricted by their loose structures, which results in unsatisfactory rejection for small molecules with sub-200 Da molecular weight. In this study, a synchronous modification strategy during the heat treatment of interfacial polymerization was proposed, in which various multi-amine solutions were employed as the novel medium of heat treatment to regulate the structures of ZNFMs. The pore size distribution of membranes could be narrowed to a certain degree through cross-linking by corresponding multi-amines. The optimized ZNFMs exhibited excellent retention to small molecules. For example, the retention of glucose was dramatically increased to 96.5%. Meanwhile, the ZNFMs also had low rejection for monovalent salts, such as KCl (26.7 %). Consequently, the separation factor between glucose and KCl reached 21.2, which demonstrated a great potential for organic molecule desalination with sub-200 Da molecular weight.
研究领域:
化学工程
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材料科学
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环境工程
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高影响因子
Advanced Energy Materials
·
2026
·
IF 25.5
Yanghong Wu,Shiqiang Duan,Meng Li,Maoyuan Wu,Qiaoyan Ma,Peng Liu,Yuansong Lu,Zhengkai Xu,Anlu He,Mengen Ma,Shaohang Wu,Chong Liu,Jiandong Fan,Yaohua Mai
High-efficiency all-perovskite tandem solar cells are severely constrained by narrow-bandgap Sn-Pb subcells, which confront an inherent contradictory bottleneck: Sn 2+ -rich precursors undergo fast, unregulated crystallization during blade coating, yet Sn 2+ cations are easily oxidized to harmful Sn 4+ under ambient conditions. Conventional single additive materials can only address one of the two critical drawbacks instead of balancing both. Herein, we develop a dual-additive strategy combining Lewis-base amidinothiourea (FATU) and zwitterionic glycine hydrochloride (GlyHCl) with two core synergistic functions. FATU utilizes C═S and −NH 2 groups to preferentially chelate Sn 2+ , inhibiting its oxidation and pre-nucleation aggregation; GlyHCl simultaneously coordinates Pb 2+ and Sn 2+ to slow global crystallization kinetics and suppress heterogeneous nucleation. This dual synergy fabricates high-quality Cs 0.1 FA 0.5 MA 0.4 Pb 0.5 Sn 0.5 I 3 films with over 800 nm large grains and minimized trap density. The blade-coated single-junction device reaches 21.02% PCE with V OC boosted from 0.797 to 0.850 V. When integrated with a 1.76 eV wide-bandgap top cell, the tandem achieves 27.84% peak efficiency (stabilized at 27.33%) and retains more than 75% initial efficiency after 680 h continuous MPP tracking. This work offers a practical pathway for scalable blade-coating production of high-performance all-perovskite tandem photovoltaics.
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Journal of Water Process Engineering
·
2026
·
IF 6.6
Xinyu Jia,Ruihao Wang,Qian Li,Xiyan Sun,Shuxian Li,Li Wei,Yu Tian,Jiangdong Xiang,Xitong Sun
In this work, a multifunctional adsorbent based on zwitterion modified Ti 3 C 2 T x MXene (MPI) was synthesized by surface grafting polymerization, followed by modification with polyethylenimine and sodium chloroacetate. This adsorbent exhibited a high density of functional groups, switchable surface charge characteristics and plenty of active sites of iminoacetic acid chelating groups. Subsequently, methylene blue, congo red, Pb(II), and Cr(VI) were selected as model compounds for cationic/anionic dyes and heavy metal ions to estimate the adsorption performance. The material exhibited exceptional adsorption capacities, and the maximum adsorption capacities were determined as 479.8 mg/g for methylene blue, 481.9 mg/g for congo red, 300.6 mg/g for Pb(II) and 265.9 mg/g for Cr(VI), respectively. Adsorption equilibrium was reached within 10–120 min and the adsorbent showcased excellent removal efficiency. Moreover, the adsorbent demonstrated excellent reusability，with no significant changes after ten consecutive adsorption-desorption cycles. Mechanism studies revealed that electrostatic attraction and chelation played dominant roles in the adsorption process. These results suggest that MPI possesses advantages of simple preparation, multifunctional integration, high adsorption performance, and good stability, making it a promising universal adsorbent for the removal of both dyes and heavy metal ions from wastewater.
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高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Hui Peng,Lili Hao,Xusheng Zhang,Kanjun Sun,Xin Wang,Fan Yang,Guofu Ma
Hydrogels are considered to be one of the most promising flexible sensing materials for a variety of practical applications. However, hydrogels usually freeze at temperatures below freezing and lose their inherent properties. Thus, it is highly desirable to prepare hydrogels that can simultaneously have excellent mechanical properties and antifreezing properties at low temperatures. Herein, a facile photoinitiated polymerization strategy is employed to introduce zwitterionic proline (ZP) into the flexible poly(2-hydroxyethyl acrylate) (PHEA) matrix to prepare a stretchable and adhesive PHEA/ZP hydrogel with good freezing-tolerant properties. Due to the presence of abundant hydrogen bonds and electrostatic interaction forces, the obtained PHEA/ZP hydrogel exhibits excellent mechanical properties (stretch of 810%), a self-adhesive nature, high transparency (>90%), and rapid electrical self-healing capability. More importantly, the presence of ZP endows the hydrogel with considerable antifreeze properties, making it completely transparent and stretchable even at −40 °C. In addition, the use of PHEA/ZP hydrogel as a flexible strain sensor can accurately monitor human motions, such as the flexion of human limbs and joint microstress. Therefore, antifreeze hydrogel assisted by zwitterions enables wearable flexible sensors for motion detection at room temperature and low temperature, which has great potential in the field of flexible sensors.
研究领域:
材料科学
·
生物医学工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Hao Li,Luyan Li,Jun Wen,Gang Ye,Jing Chen,Xiaolin Wang
Polymeric adsorbents play a crucial role in the extraction of uranium from seawater and nuclear wastewater for the removal and recovery of uranium. However, traditional polymeric uranium adsorbents rely on the coordination between uranyl and ligands, and the uranyl/ligand stoichiometric ratio is generally ≤ 1:1, further limiting their adsorption performances. Herein, phosphorylcholine (PC), a phosphate-containing zwitterionic group, is highly-functionalized on fibers to construct a novel uranium adsorbent denoted by PAN-PC. Interestingly, PAN-PC performs an unprecedented self-assembly effect toward uranyl in the adsorption process. Further investigation reveals that three factors, i) the strong coordination and electrostatic interactions, ii) the zwitterionic nature of PC, and iii) the existence of abundant PC, induce the self-assembly of uranyl on PAN-PC as reverse micelle-like structures. Moreover, the excellent mass transfer performance of PAN-PC contributes to the sufficient utilization of ligands. Consequently, PAN-PC exhibits an ultrahigh stoichiometric ratio > 5:1 and a remarkable adsorption capacity of 2658 mg g −1 , which significantly exceeds all reported polymeric uranium adsorbents. Furthermore, the practicality of PAN-PC is also verified in seawater and simulated nuclear wastewater. This is the first adsorbent that introduces the self-assembly effect for significantly enhancing the adsorption performance. This work provides a novel strategy to develop efficient adsorbents for metal ions.
研究领域:
材料科学
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环境工程
·
核科学
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Chenbo Yuan,Hongdi Lu,Chen Wang,Hang Shang,Runze Tian,Shiqi Liu,Jie Sun,Haijia Quan,Xiaowen Zhan,Chenglin Sun,Shenghan Wang
Aqueous Zn-metal batteries (AZMBs) are plagued by dendrite growth and parasitic reactions at the anode, limiting their commercial viability. While electrolyte additives offer promise, conventional monofunctional additives provide insufficient defense to Zn anodes. Herein, we introduce a zwitterionic 3-aminopropanesulfonic acid (APS) additive that enables an interphase-solvation dual-regulation (ISDR) mechanism. APS can specifically adsorb on Zn anodes, creating a water-poor and zincophilic electric double layer, which favors oriented (002) Zn deposition. Furthermore, APS alters the Zn2+ solvation structure, breaking the original hydrogen bond network between H2O, and acts as a pH buffer during cycling. Consequently, Zn symmetric cells containing APS additive achieve ultralong cycling stability exceeding 5540 h at 0.5 mA cm–2, and Zn//Ca0.24V2O5·0.83H2O full batteries retain 87.3% capacity after 1800 cycles at 3 A g–1. Even at a high current density of 5 mA cm–2, the APS-containing electrolyte enables stable cycling for over 888 h. In addition, bending tests and the capacity to light up LED panels of pouch cells have proved its potential for application. The proposed ISDR mechanism offers a significant guideline for developing practical AZMBs.
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DOI
PubMed
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2023
·
IF 5.1
Jiuyun Cui,Yibo Zhang,Yusong Pan,Jianjun Li,Atian Xie,Changguo Xue,Jianming Pan
Molecularly imprinted composite membranes are considered to be a promising technology for the selective separation of antibiotics in wastewater. However, membrane pollution still greatly limits the practical applications of these membranes, especially in oily wastewater. In this study, an anti-fouling zwitterion PVDF-imprinted composite membrane (SPICM) was synthesized using dopamine as the functional monomer and crosslinking agent in the imprinting process. First, sulfobetaine 8 was blended with a porous PVDF membrane via a surface segregation strategy. Next, dopamine self-polymerization provided effective recognition sites and endowed the membrane surface with high hydrophilicity . The SPICM used for emulsion separation and selective tetracycline hydrochloride (TC) in wastewater. The as-prepared SPICM was able to separate various emulsions under gravity with a high flux (626 L m −2 h −1 ) and separation efficiencies of up to 99%. This membrane achieved a TC separation efficiency of 88.3% in oily wastewater. Therefore, the design of SPICMs with good antifouling performance provides a new strategy for the highly selective separation of active components from oily wastewater.
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