INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Xin Xu,Qingwu Wang,Xiaodong Xu,Qiaoyi Han,Xiaojuan Nie,Xu Ding,Xia Liu,Junqing Li,Qiang Shi,Hongxing Dong
Multifunctional wound dressings are promising medical materials for various applications. Among them, dressings with antimicrobial activity , high biosafety, and real-time monitoring have attracted considerable research interest. Herein, a biodegradable hemostatic sponge comprising a chitosan skeleton and polyelectrolyte–surfactant complex (CS–PEC) was developed as a versatile wound dressing for wound pH monitoring and inhibition of bacterial infection. CS–PEC sponge with high porosity exhibited satisfactory fluid absorption capacity and biocompatibility, along with antibacterial properties against E. coli and S. aureus . In vivo experiments in rat liver trauma model revealed that wounds treated with the CS–PEC sponge recorded less blood loss (97.1 mg) and shorter hemostasis time (27.2 s) than those treated with commercial gelatin sponge (309.1 mg and 163.5 s, respectively). Furthermore, PECs based on unconventional luminescent molecules ( L -C 16 -Hyp) were used as pH fluorescent indicators, which endowed the sponge with fluorescence-responsive behavior to wound pH changes in the range of 5.0–8.5. Visual images can be captured using a smartphone and converted to RGB color mode values for on-site assessment of wound status. This study sheds light on the design and application of unconventional luminescent materials in wound dressing and provides a smart and effective solution for wound management.
研究领域:
生物材料
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医学工程
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药学
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DOI
PubMed
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
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2024
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IF 8.3
Sijia Sun,Shuai Zhang,Mingzhu Pan
Intelligent fire warning system is a crucial protective equipment reduce fire hazards . A recent increasing concern is the development of sensitive fire warning materials that can be integrated with combustible materials to provide real-time alarms in the fire. However, current research on improving the sensitivity of fire warning sensors based on temperature-resistance response focuses on constructing continuous conductive networks. The effect of the heat transfer process is ignored, which limits the further improvement of alarm sensitivity. Here, we developed a strategy to improve thermal conductivity . Based on the chitosan (CS) conductive network in Ti 3 O 5 -based fire sensing system, aminated 2D h-BN nanosheets with high temperature resistance and ultrahigh in-plane thermal conductivity were further introduced. The h-BN improves the thermal conductivity of the fire warning coating from 1.43 W/m·K to 2.29 W/m·K. Intelligent fire warning sensors with ultra-sensitivity (1.16 s), low response temperature (170 °C), duration time (12 min) and durability (100 cycles) were successfully prepared by improving thermal conductivity to rapidly transfer heat to Ti 3 O 5 , which leads to a rapid decrease in resistance as the core mechanism. This work proposed an ingenious strategy for the construction of high fire safety and thermal conduction fireproof coatings, which revealed enticing prospects in the field of intelligent coatings.
研究领域:
材料科学
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传感技术
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DOI
高影响因子
Molecular Catalysis
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2025
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IF 4.9
Wei Wang,Rui Zhang,Jiaqing Li,Huai Liu,Wenlong Jia,Junhua Zhang,Dan Li,Lincai Peng
Furans are important scaffolds with applications in pharmaceuticals, polymers synthesis and biofuels. The direct production of new types of furans from glucose is therefore significant but remains a great challenge. Herein, we report a facile strategy to produce acetylfurans directly from glucose over MoCs-SiO 2 , with an increase in yield from 35.8 % to 81.4 % compared with pristine Mo-SiO 2 due to the facilitated C−C bond cleavage of glucose. The incorporation of Cs improved the dispersion of Mo species, induced the formation of partially reduced Mo, increased the Lewis acidity and glucose adsorption of the catalyst, and thus shifting the reaction selectivity from C−C coupling to cleavage. Kinetic studies further demonstrated the positive contribution of Cs as a promoter in lowering the activation energy of C−C bond cleavage. This study provides a promising strategy to broaden the range of furanic compounds derived from glucose for product-oriented biorefineries.
研究领域:
化学工程
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生物催化
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可再生资源利用
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Yu Zang,Yangyang Yu,Yanlin Chen,Minyi Fan,Jianjun Wang,Jiao Liu,Liang Xu,Hongge Jia,Shaobo Dong
Conjugated microporous polymers (CMPs) with extended π-conjugated systems and permanent microporous scaffolders have broad application prospects in the treatment of radionuclides in nuclear wastewater. Herein, the Sonogashira–Hagihara coupling process was employed to generate three CMPs, called CMP1–3 . CMP1S–3S with different degrees of sulfonation were produced and employed for Cs + ion adsorption by adjusting the sulfonation time using chlorosulfonic acid as the sulfonating agent. This is the first attempt to apply CMPs containing sulfonic acid groups to Cs + ion adsorption, which show excellent adsorption properties. CMP1S - 48 with the highest surface sulfonic acid group density exhibited the fastest adsorption rate, and it reached adsorption equilibrium on Cs + ion in an aqueous solution under 1 min. The adsorption process corresponded to the Freundlich isotherm model of multilayer adsorption, with an adsorption capacity of up to 288.1 mg g −1 . Compare with CMP2S - 48 and CMP3S - 48 , CMP1S - 48 with more sulfonic acid groups shows the highest adsorption capacity. Moreover, the selectivity of CMP1S - 48 adsorbing Cs + ion was exceeded high. Notably, the adsorption mechanism of Cs + ion by CMP1S–3S involved ion exchange with H + in the sulfonic acid groups, as well as its complexation and electrostatic attraction with the sulfonic acid groups. This work opens up a new way for CMPs rich in sulfonic acid groups to treat Cs + ion-contaminated water sources.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Jinmei He,Yuhang Gao,Jiehui Li,Ying Zhang,Menglin Zhu,Jin Zhang,Mengge Cao,Xiao Wei,Mengnan Qu
The escalating global freshwater crisis demands urgent development of high-performance desalination technologies. Solar-driven interfacial evaporation (SIE) has emerged as an energy-efficient and environmentally sustainable technology for seawater purification, yet its practical adoption remains hindered by persistent challenges: performance degradation under prolonged operation, and inherent discontinuity of solar energy day and night. Herein, we propose a novel all-day solar-driven interfacial evaporators by solar-thermoelectric cogeneration system, which synergistically integrates a magnetically responsive Janus CS@Fe₃O₄/SA-MF evaporator with thermoelectric generator (TEG) and solar cells. The Janus evaporator fabricated by a facile two-step dip-coating methodology, features engineered asymmetric wettability (contact angle contrast: 152.5° vs. 0°) and exceptional broadband absorption (>99% across 250–2500 nm). Under solar irradiation (1 sun), the system achieved an exceptional evaporation rate of 2.678 kg·m⁻²·h⁻¹ over 10 hours with 96% efficiency, while simultaneously generating electricity according to the Seebeck effect (maximum output: 116 mV, 6.32 mA). Remarkably, due to the Peltier effect, the energy storage of the solar cell enabled sustained nocturnal operation, maintaining an evaporation rate of 1.088 kg·m⁻²·h⁻¹ (7 times of pure water). The synergistic design utilizes solar evaporation during the day and energy conversion at night to effectively overcome the barrier of dependence on sunlight. This work proposed cogeneration strategy opens new avenues for sustainable freshwater production and decentralized energy supply in water-energy nexus applications.
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高影响因子
Journal of Cleaner Production
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2023
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IF 11.1
Kang Li,Junjie Xie,Zhuonan Shi,Changli Min,Zichen Yin,Ruixin Ma,Shina Li
Rubidium and cesium are highly-priced and important rare alkali elements but they always co-exist with large amount of sodium and potassium in a complex system resulting very difficult and expensive to recover. Hexacyanoferrates (MHCFs) is one of the most efficient methods to separate Rb + and Cs + if we don't consider certain drawbacks such as too small particle size and too viscous liquids to be precipitated. In this study, a new kind of hexacyanoferrate, magnesium (II) hexacyanoferrate (RbCs–MgHCF) has been fabricated at room temperature and applied for the first time to recover Rb + and Cs + from high-salty solutions. Compared with traditional divalent transition elements, such as CuHCFs, ZnHCFs, NiHCFs, CoHCFs or FeHCFs, RbCs–MgHCF had excellent precipitation property and large particle size of about 300 nm. The structure, morphology and composition were characterized by Fourier transform infrared (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM), Inductively coupled plasma (ICP), and Energy dispersive spectroscopy (EDS). The effects of various factors (divalent metal cations, surfactant, Mg 2+ /(Rb + +Cs + ) mole ratio, pH value and titration rate) on the recovery of Rb + and Cs + were explored in 50 mL batch experiments. Scale-up experiment were conducted in 6 and 18 L. Results identified that deposition ratio for Cs + and Rb + were 99% and 95% among pH ranges of 4.0–11.0. The composition of RbCs–MgHCF was confirmed to be Rb 0.61 Cs 1.20 K 0.17 Mg 1.01 Fe(CN) 6 by ICP and EDS and the synthesis mechanism of RbCs–MgHCF is proposed.
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高影响因子
ANALYTICAL BIOCHEMISTRY
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2023
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IF 2.9
Yan Xiong,Shu Zhu,Hua Zhao,Jin Li,Yanting Li,Tao Gong,Yanru Tao,Jiangling Hu,Hongmei Wang,Xinhui Jiang
For patients receiving organ transplants, monitoring the blood concentration of MPA can provide timely information on whether MPA has reached the effective therapeutic window to better function while reducing the incidence of rejection or adverse reactions. In this study, an electrochemical sensor for the detection of MPA was built using a nanocomposite made of CS-MWCNT and AuNPs. At the same time, the high performance liquid phase (HPLC) method for MPA was established and compared with this sensor. The surface morphology, structure, and roughness of the material on the electrode were characterized by scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy (FTIR), and atomic force microscopy (AFM). In addition, the electrochemical behavior of the modified electrode was characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The standard curve was obtained in blank plasma, not pure buffer solution. The peak current was linearly related to the MPA concentration in the linear range of 0.001–0.1 mM with a detection limit of 0.05 μM and good anti-interference ability. Moreover, the sensor was employed with success for the determination of MPA in rat plasma with good recovery. The electrochemical sensor presented here is eco-friendly, and sensitive, and offers a great possibility for practical applicability.
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2023
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IF 7.2
Xinsheng Li,Katam Srinivas,Manigandan Ramadoss,Fei Ma,Yue Wang,Mengya Wang,Hesheng Yu,Ziheng Zhang,Yu Wu,Yuanfu Chen
The sluggish kinetics of oxygen evolution reaction (OER) becomes one of the big obstacles for large-scale electrolytic water splitting. It is urgent to develop low-cost and efficient OER catalyst with fast reaction kinetics and low energy barrier. Herein, a novel OER catalyst of carbon nanotubes (CNT) supported cesium-doped NiFe-layered double hydroxide nanosheets (Cs–NiFe-LDH) is synthesized via a facile one-pot solvothermal reaction. The porous Cs–NiFe-LDH@CNT catalyst delivers an ultralow overpotential of 240 mV @10 mA cm −2 , a small Tafel slope of 56.22 mV dec −1 , and excellent long-term stability. The outstanding catalytic performance is mainly attributed to the synergistic effects of Cs doping and CNT network: the modification of the electronic structure of NiFe-LDH by Cs doping and the conductivity enhancement by CNT network can facilitate the electron transfer and kinetics; the Cs doping and CNT introduction can generate rich active sites; the nanoporous architecture can facilitate the ion diffusion and O 2 bubble release. This work provides a synergistic strategy to design and synthesize transition metal based OER catalysts with low-cost, fast kinetics and good stability for water splitting.
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DOI
高影响因子
Defence Technology
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2023
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IF 5.1
Yujie Yan,Bo Jin,Rufang Peng
Biomass chitosan (CS) was used as a template, graphitic phase carbon nitride (g-C 3 N 4 ) with high nitrogen content and certain catalytic activity was used as a dopant, and nano-transition metal cobalt (Co) was used as a catalytic center point. The carbon aerogel (C (CS)/g-C 3 N 4 /Co) with a three-dimensional network-like structure was prepared by assembling the three materials through experimental operations such as freeze-drying and high-temperature carbonization. It was demonstrated by scanning and transmission characterization that the CS in the carbon aerogel could provide more active sites for the cobalt nanoparticles, and the doping of graphite-phase carbon nitride as a template dispersed the cobalt nanoparticles and changed the conductivity of the CS. To investigate the catalytic effect of carbon aerogel on ammonium perchlorate (AP), it was investigated by differential thermal analyzer and TG thermal analysis. This carbon aerogel was very effective in catalyzing AP, and the 10 wt% content of the catalyst reduced the AP pyrolysis peak from 703.9 to 595.5 K. And to further investigate the synergistic effect of the three materials, further carbon aerogels such as C (CS)/Co, g-C 3 N 4 /Co were prepared and applied to catalyze AP, and the same ratio reduced the AP pyrolysis peak by 98.1 °C and 97.7 °C. This result indicates a synergistic effect of the assembly of the three materials.
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高影响因子
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
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2018
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IF 1.911
Fang Wang,Jian Yuan,Qian Zhang,Siqian Yang,Shaohua Jiang,Chaobo Huang
Poly (lactic-co-glycolic acid) (PLGA) nanoparticles are an ideal paclitaxel (PTX)-carrying system due to its biocompatibility and biodegradability. But it possessed disadvantage of drug burst release. In this research, a layer-by-layer deposition of chitosan (CS) and sodium alginate (ALG) was applied to modify the PLGA nanoparticles. The surface charges and morphology of the PLGA, PLGA/CS and PLGA/CS/ALG particles was measured by capillary electrophoresis and SEM and TEM, respectively. The drug encapsulation and loading efficiency were confirmed by ultraviolet spectrophotometer. The nanoparticles were stable and exhibited controlled drug release performance, with good cytotoxicity to human lung carcinoma cells (HepG 2). Cumulatively, our research suggests that this kind of three-layer nanoparticle with LbL-coated shield has great properties to act as a novel drug-loaded system.
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DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
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2023
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IF 12.6
Huanhuan Li,Wenhui Geng,Zhixiong Qi,Waqas Ahmad,Suleiman A. Haruna,Quansheng Chen
In this work, a stimuli-responsive SERS biosensor was fabricated for tetracycline (TTC) by “signal-on” strategy using (EDTA)-driven polyethyleneimine grafted calcium carbonate ( [email protected] 3 ) microcapsule and chitosan-Fe magnetic microbeads ( [email protected] ). Initially, aptamer conjugated magnetic-bead [email protected] @Apt with superparamagnetism and excellent biocompatibility was employed as capture probe, which facilitated the rapid and easy magnetic separation. Subsequently, the PEI cross-linked layer and aptamer network layer were constructed onto the outer layer of CaCO 3 @4-ATP microcapsule to form sensing probes ( [email protected] 3 @ [email protected] ) via the layer-by-layer assembly method. In the presence of TTC, a sandwich SERS-assay was exploited by aptamer recognition induced target-bridged strategy. When the solution of EDTA was added, the core layer of CaCO 3 would be dissolved quickly, destroying the microcapsule to release 4-ATP. The released 4-ATP could be quantitatively monitored by dripping the supernatant onto the [email protected] SERS platform, resulting in a strong Raman “signal-on”. Under the optimal conditions, a good linear relationship was established with a correlation coefficient ( R 2 ) of 0.9938 and a LOD of 0.03 ng/mL. Additionally, the application capacity of the biosensor to detect TTC was also affirmed in food matrixes, and the results were consistent with the standard ELISA method ( P > 0.05). Hence, this SERS biosensor affords extensive application prospects for TTC detection with multiple merits such as high sensitivity, environment friendliness, and high stability.
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DOI
PubMed
高影响因子
International Journal of Polymeric Materials and Polymeric Biomaterials
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2022
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IF 3.221
Jia Chen,Shuying Han,Mengjia Huang,Jie Li,Mi Zhou,Jianguo He
For treating tympanic membrane (TM) perforation, a scaffold is helpful for TM repair in myringoplasty. In this work, the green-crosslinked method respectively based on four kinds of polybasic organic acids (maleic acid, tartaric acid, citric acid, and malic acid) has been used to crosslink the composite nanofibrous membranes of chitosan (CS) and poly(vinyl alcohol) (PVA) for preparing the TM scaffold. The crosslinked membranes exhibit nanofibrous morphology, good physical properties, and excellent biocompatibility to promote TM cell proliferation. To summarize, the polybasic organic acids are effective and nontoxic crosslinked agents to prepare composite CS/PVA nanofiber membranes for TM scaffold.
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高影响因子
危险品化学品经营许可证（带存储）