Energy Technology
·
2022
·Vol. 10
·期 12
·2200897
·
IF 4.149
Xue Wang,Zhihao Xing,Chao Yang,Yusheng Qin
The all-in-one flexible supercapacitor holds great promise for wearable electronics due to its stable electrochemical performance under continuous strain. However, it is a challenge to achieve good mechanical strength, self-healing performance, and high energy density for their potential applications. For this purpose, a stretchable and healable all-in-one supercapacitor consisting of gelatin hydrogel electrolytes and polypyrrole electrodes is constructed. The gelatin hydrogel is obtained by the hydrolysis of leather waste shavings and then physically cross-linked by simply soaking in a sodium sulfate solution. Benefiting from the Hofmeister series, the kosmotropic sodium sulfate ions can significantly enhance the hydrophobic interactions and chain bundling, thus greatly improving the mechanical strength of gelatin hydrogel. As a result, the as-prepared all-in-one supercapacitor exhibits an area-specific capacitance of 219.0 mF cm −2 , a high energy density of 19.46 μWh cm −2 , and long cycling life. In particular, the all-in-one supercapacitor can be deformed under varied stress–strain via decross-linking and dissociation, simultaneously delivers reliable self-healing capability. This work presents a simple and green technology to prepare an all-in-one supercapacitor, which motivates the development of biomass wastes toward high-performance electronics.
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2022
·
IF 6.556
Yanping Xia,Haibing Zhu,Ruixin Liu,Xin Li,Xiaoli Xie,Jie Zhao,Juan Li,Xin'an Jiao,Zhanjun Yang,Xiang Chen
Tuberculosis (TB) as a global epidemic disease is caused by Mycobacterium tuberculosis (M. tb). A small early secreted antigenic target 6-kDa protein (ESAT-6) secreted by M. tb has become a major virulence factor for detection of M. tb infection. Here, the recombinant protein His-CFP10-ESAT-6 (designated as rHis-CE) was expressed and purified as the immunogen to develop stable and specific ESAT-6 monoclonal antibodies (MAbs), which can recognize both recombinant and natural ESAT-6 protein. Three resultant ESAT-6 MAbs (named 4E1, 4D7 and 4G8) were characterized and screened in detail. An ultrasensitive electrochemical impedance ESAT-6 immunosensor for label-free detection of M. tb infection was proposed by the immobilization of the screening 4D7 ESAT-6 MAbs on the N-doped graphene oxide (N-GO) functionalized electrode. The structure and surface state of N-GO and ESAT-6 immunosensor were characterized by various characterization instruments such as transmission electron microscopy , X-ray photoelectron spectroscopy, contact angle measurement, and cyclic voltammetry . The quantitative detection of ESAT-6 was mainly achieved by recording the relative change of impedance before and after specificity reaction. Under the optimized conditions, ESAT-6 could be assayed in a range of 0.01–100 ng/mL with a very low detection limit of 7.0 pg/mL. Compared with the traditional assay methods, this immunosensor showed much higher sensitivity, wider linear range and simpler operation. Moreover, the ESAT-6 immunosensor showed good specificity, high reproducibility and excellent stability.
✓ 已验证
产品关联
DOI
高影响因子
Advanced Healthcare Materials
·
2022
·Vol. 12
·期 2
·2201565
·
IF 11.092
Zhekun Zhang,Juning Xie,Jun Xing,Changhao Li,Tak Man Wong,Hui Yu,Yuanxing Li,Fabang Yang,Yu Tian,Huan Zhang,Wei Li,Chengyun Ning,Xiaolan Wang,Peng Yu
Developing an ideal wound dressing that not only accelerates wound healing but also eliminates potential bacterial infections remains a difficult balancing act. This work reports the design of a light-programmable sodium alginate nanocomposite hydrogel loaded with BiOCl/polypyrrole (BOC/PPy) nanosheets for state-switchable wound healing promotion and bacterial infection elimination remotely. The nanocomposite hydrogel possesses programmable photoelectric or photothermal conversion due to the expanded light absorption range, optimized electron transmission interface, promoted photo-generated charge separation, and transfer of the BOC/PPy nanosheets. Under white light irradiation state, the nanocomposite hydrogel induces human umbilical vein endothelial cells migration and angiogenesis, and accelerates the healing efficiency of mouse skin in vivo. Under near-infrared light irradiation state, the nanocomposite hydrogel presents superior antibacterial capability in vitro, and reaches an antibacterial rate of 99.1% for Staphylococcus aureus infected skin wound in vivo. This light-programmable nanocomposite hydrogel provides an on-demand resolution of biological state-switching to balance wound healing and elimination of bacterial infection.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 34
·2204751
·
IF 19.924
Na Song,Siyu Ren,Yue Zhang,Ce Wang,Xiaofeng Lu
Tubular nanoreactor with unique void-confinement effect has captured great attention for catalytic applications but is challenging in controllable fabrication and realizing a synergistically enhanced performance. Herein, a template polymerization-guided synthetic strategy is presented to confine hollow Prussian blue analog boxes inside conducting polypyrrole nanotubes (H-CoFe PBA@PPy NTs) as efficient peroxymonosulfate activator toward catalytic oxidation of toxic organic contaminants. This delicately designed H-CoFe PBA@PPy NTs display a superior kinetic rate constant compared with the pristine CoFe PBA cubes (7.9 fold) and H-CoFe PBA boxes (22.6 fold). Experimental evidence reveals that the generation of multiple reactive oxygen species in the nanotubes plays a vital role for the significantly enhanced catalytic efficiency for dye degradation. The superior catalytic performance is attributed to the intrinsic bimetallic CoFe PBA to provide abundant active sites, distinct nanotubular structure to concentrate the reactant molecules within a confined space, and excellent electron/mass transport property. This work presents new horizons for the design of high-efficiency and stable catalysts with space confinement effects to promote future advanced water treatment technology.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yanhua Lei,Jie Wang,Bochen Jiang,Hui Liu,Haifeng Lan,Yuliang Zhang,Guanhui Gao
In this study, we present the successful development of a unique photo-Fenton catalyst, 1T-2H MoS 2 @TP/PPy (MTP), achieved through the coating of a copolymer of tea polyphenol (TP) and polypyrrole (PPy) onto the surface of heterophase molybdenum disulfide (1T-2H MoS 2 ). This innovative approach involves the integration of hydrothermal synthesis with copolymerization techniques. Our strategy utilizes nanoflower-like 1T-2H MoS 2 as the foundational framework, which is then enveloped in TP and PPy copolymer. This innovative approach involves the integration of hydrothermal synthesis with copolymerization techniques. Our strategy utilizes nanoflower-like 1T-2H MoS 2 as the foundational framework, which is then enveloped in TP and PPy copolymer. This distinctive architecture demonstrates exceptional catalytic performance owing to the hetero-phase entanglement of 1T-2H MoS 2 , which provides a diverse array of active sites. The coupled structure of TP and iron (TP-Fe 2+ /Fe 3+ ) effectively overcome the limitation associated with the iron source. The incorporation of PPy not only reduces the recombination of photogenerated electron-hole pairs but also enhances the stability of 1T-2H MoS 2 . Remarkably, our experiments on the degradation of methylene blue (MB) and tetracycline (TC) degradation demonstrate that TP-Fe 2+ /Fe 3+ significantly expands the pH applicability range of the MTP composite catalyst. Additionally, we examine several factors, including different catalysts, H 2 O 2 addition, variations in light intensity, solution pH, temperature fluctuations, and the role of active species, to comprehensively understand their impact on the photo-Fenton degradation process. In conclusion, MTP composite exhibits robust catalytic stability and demonstrates a broad pH utilization range in the photo-Fenton oxidation process, highlighting its promising potential for a wide range of applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Wenfeng Zheng,Lingling Fan,Jiangang Zhou,Zhenghua Meng,Dezhan Ye,Jie Xu
Cellulose composite nanopaper is extensively employed in flexible energy storage systems owing to their light weight, good flexibility and high specific surface area. Nevertheless, achieving flexible and ultrathin nanopaper supercapacitors with excellent electrochemical performance remains a challenge. Herein, surface cationization of bacterial cellulose (BC) nanofibers was conducted using 2,3-epoxypropyltrimethylammonium chloride (EPTMAC). Anion-doped polypyrrole (PPy) was incorporated onto the surface of the cationic bacterial cellulose (BCE) nanofibers by an interfacial electrostatic self-assembly process. The obtained PPy@BCE electrode exhibited excellent electrochemical performance, including an areal capacitance of 3988 mF cm −2 at 1.0 mA cm −2 and a capacitance retention of 97 % after 10,000 cycles. A laminated paper-forming strategy was adopted to design and fabricate all-in-one integrated flexible supercapacitors (IFSCs) using PPy@BCE nanopaper as electrodes and BC nanopaper as a separator. The IFSCs showed superior areal capacitance (3669 mF cm −2 at 1 mA cm −2 ), high energy density (193.7 μWh cm −2 at a power density of 827.3 μW cm −2 ), and outstanding mechanical flexibility (with no significant capacitance attenuation after repeatedly bending for 1000 times). The present strategy paves a way for the large-scale production of paper-based energy storage devices.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TALANTA
·
2026
·
IF 6.7
Chenfei Liu,Zhiqi Li,Rubing Xiong,Xiang Li,Zijie Li,Yuying Lin,Lu Chen,Jing Liu,Guodong Wang,Fang He,Yong Xia,Lei Mou
Innovative application of a monomer for molecularly imprinted polymer (MIP) functionality. • Portable and miniaturized device enable point-of-care testing of oxytocin anytime and anywhere. • Comparison of pyrrole and P2CA as functional monomers of MIP. • The detection results of OT sensor showed a strong correlation with those obtained by ELISA. Oxytocin is a key peptide hormone regulating pregnancy and parturition, yet its accurate quantification remains challenging due to its ultra-low abundance and poor stability. Here, we report a portable electrochemical sensing platform based on an electrostatically engineered molecularly imprinted polymer interface for ultrasensitive OT detection in maternal serum. Pyrrole-2-carboxylic acid (P2CA) was rationally selected as the functional monomer to introduce carboxyl groups that enhance interfacial negative charge density, thereby strengthening electrostatic interactions with OT and improving binding affinity. Compared with conventional pyrrole-based systems, the P2CA-based MIP sensor exhibits a wide linear range of 10 - 1000 pg/mL with a low detection limit of 1.15 pg/mL. Molecular simulations combined with high-ionic-strength experiments reveal that electrostatic adsorption dominates the recognition mechanism and underpins the enhanced sensitivity. Integration of petal-shaped gold nanoparticles further increases surface area and conductivity, which amplify the electrochemical signal. The sensor is incorporated into a compact portable device enabling rapid detection (<15 min) with microliter sample volumes (30 μL). It demonstrates excellent selectivity, stability, and mechanical robustness. This system was validated using clinical serum samples, which show strong agreement with ELISA (r > 0.95). These results highlight its potential for point-of-care diagnostics and maternal health monitoring. Download: Download high-res image (337KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·
IF 7.5
Yuhang Yu,Yu Zhang,Hui Huang,Xuehan Zhao,Xinhui Huang,Shengjie Zheng,Weiming Wang,Jun Xiong,Ming Li
Waste plastic bottles are upcycled into spherical photothermal aerogels for solar evaporation. • Reduced evaporation enthalpy and enlarged surface area boost evaporation performance. • A high evaporation rate of 2.81 kg·m⁻²·h⁻¹ is achieved under 1 sun. Interfacial solar evaporators (ISEs) have garnered significant attention in seawater desalination due to their high energy utilization efficiency. However, the rational design of ISE with excellent evaporation performance for seawater desalination remains a formidable challenge. In this study, waste plastic bottles (WPB) were recycled and converted into plastic powder through acid-induced crystallization. Subsequently, polypyrrole (PPy)-modified WPB-based spherical photothermal aerogels (PPy-WPB-SPA) were fabricated through crosslinking sodium alginate and calcium chloride, followed by freeze-drying. The PPy-WPB-SPA exhibits an impressive sunlight absorption efficiency of 97%. Benefiting from its unique spherical structure and the ability to reduce the evaporation enthalpy of water, PPy-WPB-SPA achieves a high evaporation rate of 2.81 kg m⁻² h⁻¹ under one-sun illumination (1000 W m⁻²). Salt tolerance tests demonstrate that PPy-WPB-SPA can maintain stable evaporation performance in 3.5 wt% saltwater, with a retained evaporation rate of 2.56 kg m⁻² h⁻¹. Outdoor experiments reveal that one square meter of PPy-WPB-SPA can desalinate approximately 15 kg of 3.5 wt% saltwater under natural daylight. This work not only realizes the high-value upcycling of WPB but also provides a promising strategy to alleviate the global freshwater scarcity crisis. Download: Download high-res image (170KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Journal of CO2 Utilization
·
2022
·
IF 8.321
Xiaofeng Zhang,Junhong Wang,Yunpeng Bian,Huijuan Lv,Bo Qiu,Yuanyuan Zhang,Ruiyuan Qin,Dandan Zhu,Sheng Zhang,Dajian Li,Shimin Wang,Wenpeng Mai,Yue Li,Tao Li
Conversion of carbon dioxide to cyclic carbonates and other value-added commercial products is a promising strategy for the modern chemical industry and removing CO 2 from the atmosphere. Catalysis with high-efficient is critical to the successful conversion of CO 2 into cyclic carbonates. Porous organic polymers (POPs) with integrated metalloporphyrin structures are known as typical efficient catalysts for the cycloaddition of CO 2 reaction. However, the high cost and energy consumption in synthesizing polymer still prohibit the application of CO 2 conversion. Here, we have prepared porphyrin-based conjugated microporous polymer (Co-Por-POPs) microspheres by a simple self-polymerization strategy, which exhibit high catalytic performances in the CO 2 cycloaddition reactions with free solvent under atmospheric pressure at room temperature. Even using dilute CO 2 (15% CO 2 in N 2 ), a TOF up to 8.1 h −1 could be afforded under ambient conditions (25 °C, 1 bar) by Co-Por-POP-2. This study highlights the potential for sustainable industrial syntheses of cyclic carbonates.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Rui Li,Yuzhang Liang,Haonan Wei,Hui Zhang,Svetlana Kurilkina,Wei Peng
The electrically driven optical performance modulation of the plasmonic nanostructure by conductive polymers provides a prospective technology for miniaturized and integrated active optoelectronic devices. These features of wafer-scale and flexible preparation, a wide spectrum adjustment range, and excellent electric cycling stability are critical to the practical applications of dynamic plasmonic components. Herein, we have demonstrated a large-scale and flexible active plasmonic nanostructure constructed by electrochemically synthesizing nanometric-thickness conductive polymer onto spatially mismatched Au nanodisk-hole (AuND-H) array on the poly(ethylene terephthalate) (PET) substrate, offering low-power electrically driven switching of reflective light in a wide wavelength range of 550–850 nm. The composite structure of the polymer/AuND-H array supports multiple plasmonic resonance modes with strong near-field enhancement and confinement, which provides an excellent dynamic spectral modulation platform. As a result, the PPy/AuND-H array achieves 18.4% reversible switching of spectral intensity at 780 nm and speedy response time, as well as maintains a stable dynamic modulation range at two-potential cycling between −0.6 and 0.1 V after 200 modulation cycles. Compared to the case of the PPy/AuND-H array, the PANI/AuND-H array obtains a more extensive intensity modulation of 25.1% at 750 nm, which is attributed to the significant differences in the extinction coefficient between the oxidized and reduced states of PANI, but its modulation range degrades apparently after 20 cycles driven at applied voltages between −0.1 and 0.8 V. Additionally, the cycling stability could be further improved by reducing the modulation voltage range. Our proposed electromodulated composite structure provides a promising technological proposal for dynamically plasmonic reconfigurable devices.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2023
·
IF 17.6
Zhongxue Bai,Xuechuan Wang,Mengchen Huang,Jiajun Li,Siwei Sun,Xiaoliang Zou,Long Xie,Xiao Wang,Pengbo Xue,Yuyu Feng,Peiyao Huo,Ouyang Yue,Xinhua Liu
The rapid advancement of bio-integrated electronics in recent years has been paralleled by increased interest in the research of stretchable, elastic, conductive, and multi-dimensional sensing electronic skin (e-skin) due to its potential integration with electronic devices and soft tissues. In this work, we presented the fabrication of a nature-skin derived e-skin, denoted as S-P/G@PU e-skin, achieved through an on-demand "top-down" strategy and a triple structure design, employing integrated in-situ polymerization, impregnation, and encapsulation techniques. The collagen fibers weaved hierarchical 3D structure of natural skin, was strategically employed to host conductive polypyrrole and combined with a binary solvent system of glycerin and water. Subsequently, this composite natural skin was coated with polyurethane films, resulting in the engineering of the S-P/G@PU e-skin. This innovative e-skin exhibited remarkable properties, including high tensile strength (8.76 MPa), excellent elasticity (0–180 %), anti-freezing capacity, moisture retention, substantial conductivity (6.3 S/m), and outstanding multi-dimensional sensing capabilities. Importantly, the S-P/G@PU e-skin functioned as both a slow adaptive resistance strain sensor and a fast adaptive single-electrode triboelectric nanogenerator , making it a versatile sensing system that enabled real-time monitoring of various physiological signals from the human body and wide-frequency vibration signals from devices such as cellphones and motors. This study serves as a proof of concept for transforming nature-skin into e-skin, showcasing the potential for integrated wearable electronics , artificial intelligence, and human-machine interfaces.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Chufeng Qi,Huiling Liu,Jiatong Lyu,Huanyu Zhao,Zhong-Yuan Lu
Given the growing threat of antibiotic pollutants to the natural environment and human health, detecting nitrofuran antibiotics rapidly, selectively, and at trace levels is crucial but presents a challenging task. In this work, we synthesized a novel luminescent conjugated microporous polymer (AP-CMP) through the polycondensation of 9,10-bis(4-formylphenyl) anthracene with pyrrole to form porphyrinic linkages. The designed porphyrin-formed reaction successfully prevents unfavorable quenching due to the aggregation and π-π stacking of highly conjugated anthracene building blocks. The as-formed highly extended and conjugated structure endows AP-CMP with high fluorescence, porosity, and the ability to selectively and rapidly detect nitrofuran antibiotics through fluorescence quenching. AP-CMP has low detection limits of 0.62 ppm for Nitrofurazone (NFZ), 0.67 ppm for Nitrofurantoin (NFT), and 0.77 ppm for Furazolidone (FZD). Furthermore, owing to its inherent electron-donating capabilities, AP-CMP has remarkable ability to identify 2,4,6-trinitrophenol from other nitroaromatic compounds via a turn-off response with a 0.2 ppm limit of detection (LOD). With its anti-interference features, high stability, reusability, metal-free nature, and potential for large-scale production, AP-CMP provides a promising dual-functional sensor platform for practical applications.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）