CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Zhiqi Wang,Qing Bai,Wenjie Wang,Yunan Qing,Yixuan Li,Junqi Sun
Recyclable and degradable flexible bio-based plastics integrating high stability and efficient disintegration on demand are suitable for the fabrication of flexible printed circuit boards (FPCBs) capable of safe disposal. However, it is challenging to develop a facile and environmentally friendly method to fabricate such bio-based plastic substrates. Herein, recyclable and degradable reversibly cross-linked hydroplastics with high thermal stability and water stability used as the substrates of FPCBs are fabricated through the complexation of methylcellulose (MC) and tannic acid (TA) in pure water, followed by hot-pressing. Because of dynamic nanoconfinement phases, the bio-based hydroplastic (denoted as TA-MC) with a breaking strength of 109.6 MPa possesses a high storage modulus of 2.85 GPa at 180 °C. Even being immersed in water for 15 days, the hydroplastic still retains a high breaking strength of 40.4 MPa. Owing to the reversibility of hydrogen bonds, the hydroplastic can be recycled for several times. Moreover, FPCBs composed of flexible TA-MC substrates and 3D printed sensing components can be employed for reliable underwater detection. Electronic components can be easily separated from the FPCBs by dissolving TA-MC substrates in medical alcohol and residue polymer matrices, which degrade into non-toxic substances in soil, can be safely discarded without polluting the environment.
研究领域:
材料科学
·
环境科学
·
生物工程
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DOI
PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2026
·
IF 4.4
Wei Meng,Ya Gao,Xiaoyan Fu,Yuting Huang,Haonan Li,Guotao Sun,Wenzhi Sun,Jing Jin,Changsheng Wang,Hongwu Zhang
A NB-UVB long persistent luminescence phosphor Ca 2 GeO 4 : Gd 3+ was synthesized, and the remaining luminescence decay lasted for more than 12 h. • After heating treatment, the NB-UVB afterglow intensity of the flexible film increased by three times. • The heat generated by short-term sunlight exposure can also enhance the emission of NB-UVB afterglow. Narrow-band UVB (NB-UVB) is markedly efficacious option for the treatment of psoriasis. However, the NB-UVB therapy still requires specialized medical equipment to avoid the possible risk of skin injury, which has poor portability and then limits its further application. Here, we have prepared a flexible film containing long afterglow NB-UVB phosphor Ca 2 GeO 4 : Gd 3+ , which persistent NB-UVB afterglow emission at 314 nm can be regarded as long time safe irradiation source for the phototherapy of psoriasis. Our results have shown that CGO: Gd 3+ can continuously release NB-UVB photons for more than 12 h, indicating that long time mild UVB irradiation source can be realized. More importantly, after warm temperature treatment, the NB-UVB afterglow emissions of the flexible film are enhanced to 3 times stronger, indicative of the recovery of high phototherapy efficiency. Furthermore, short-time sunlight induced heat also can enhance the NB-UVB afterglow emission intensity obviously, indicating high phototherapy efficiency can be kept when the film is exposed to sunlight. This work provides a low-cost UVB phototherapy method with multiple thermal stimuli to enhance afterglow, which has great potential in the home treatment of psoriasis. Ca 2 GeO 4 : Gd 3+ film can continuously emit NB-UVB afterglow for more than 12 h, which can be considered as a long-term safe and portable irradiation source for psoriasis phototherapy. And after heat treatment, the NB-UVB afterglow emission of the flexible film was enhanced by three times. More importantly, short-term sunlight induced heat can significantly enhance the afterglow emission intensity of NB-UVB, indicating that the film can maintain high phototherapy efficiency when exposed to sunlight. Download: Download high-res image (149KB) Download: Download full-size image
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高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Zhao-Yan Zhu,Na Yang,Xiao-Shuan Chen,Si-Chong Chen,Xiu-Li Wang,Gang Wu,Yu-Zhong Wang
A lithium–sulfur (Li–S) battery has been regarded as one of the most promising energy-storage systems to meet requirements for high energy density in electric vehicles, advanced portable electronic devices, and so on. However, practical application of a Li–S battery is restricted severely by easy dissolution of lithium polysulfides and high flammability of sulfur. Herein, we developed, for the first time, a multifunctional composite directly prepared by a facile, green, low-cost, and large-scale ball-milling method with fly ash and sulfur. Due to the unique microstructure and sulfur-related components as chemical anchors, composites possessed good electron/ion transport, favorable resistance to volume change of sulfur, and strong chemical affinity to polysulfides, which greatly facilitate redox kinetics, maintain structural integrity of the cathode, and suppress polysulfide shuttling in electrolyte, hence significantly boosting electrochemical performance of the Li–S battery with high initial discharge capacity, superior cycling stability, and satisfying rate capability. Typically, Li–S batteries based on a composite with a sulfur loading of 86.9% present initial discharge capacities of 969.8, 894.3, and 769.7 mAh g–1 as well as capacity decay rates of 0.068% (400 cycles), 0.1% and 0.042% per cycle (200 cycles) at 0.2, 0.5, and 1 C, respectively. Moreover, the average specific self-extinguishing time of the composite-based cathode was clearly reduced to less than half of that of the pristine sulfur-based cathode, indicating significantly promoting the safety of the battery.
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Junling Wang,Shui Yu,Zhirong Wang,Yan Zhang,Wei Pan
Transition metals carbides/nitrides (MXenes) have been utilized as flame retardants for epoxy resin (EP) with inherently high fire hazard. However, when the dosage of MXenes is low, the corresponding flame retardant efficiency is hard to meet the demand. Up to now, MXenes-based nanostructure with high flame retardation effectiveness has been rarely investigated. Hence, we have employed the assembly strategy to acquire a sandwiched ternary nanostructure (MX-Fe@LDH), based on strongly-coupled magnetic nanospheres@trimetallic LDH hooding with thin MXenes veil, which has never been reported before. With only 3.0 wt% MX-Fe@LDH dosage, the peak heat release rate, peak CO production rate, peak CO 2 production rate, total CO production are reduced by 51.3%, 70.2%, 49.4%, 74.1%. Comparison with reported works also indicates the high effectiveness of MX-Fe@LDH in flame retardation. The curbed emissions of toxic NO and HCN gases are uncovered via Thermogravimetric analysis-infrared spectrometry test. Postmortem analyses have indicated that using MX-Fe@LDH contributes to engender char with high graphitized degree, which acts as safeguard for basal matrix. Stemming from the rational design, there is a strong mechanical interlocking action between MX-Fe@LDH and EP chains, further prompting the mechanical capabilities. This work may motivate the design of MXenes-based nanostructure towards forging fire-safe polymer composites.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Wensheng Li,Zhenting Yin,Liangyuan Qi,Bin Yu,Weiyi Xing
Multifunctional fire-safe textiles are urgently needed to meet the application requirements under harsh environments, e.g. , high-frequency environments. However, it is rather tough to realize scalable production of multifunctional fire-safe textiles by constructing coatings. To tackle the hurdles above, multifunctional fire-safe cotton fabric was prepared though a blade-coating strategy (using black phosphorus and Ti 3 C 2 T x nano-dispersion ink), followed by hydrophobic treatment with poly (dimethylsiloxane) coating. The resultant textiles with the coating of micra-like structure exhibit excellent water resistance with a water contact angle of up to 93° and excellent heat response within 10 s to the original temperature. Furthermore, the as-designed textiles demonstrate high flame retardancy and superior shielding effectiveness (SE) of 58 dB, which is much better than the reported treated fabric. The final treated fabric with high electromagnetic interference shielding effectiveness is suitable for most commercial applications. This work provides a promising strategy to produce functional textiles with superior electromagnetic interference and exceeding thermal management at a large scale, showing potential applications in electronic, electrical, and military fields.
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Caohua He,Xilu Wu,Mingyi Tang,Chengyi Hou,Qinghong Zhang,Jianqi Sun,Kerui Li,Yaogang Li,Hongzhi Wang
Poly (ionic liquid) (PIL) has emerged as a promising polymer substrate for solid electrolytes in lithium metal batteries due to its high ionic selectivity, excellent thermal stability, and compatibility with in situ polymerization processes. However, the limited ionic conductivity of PIL, primarily attributed to its restricted free volume and rigid polymer segments at room temperature, poses a significant challenge to its broader application on solid-state batteries. Herein, poly(1,3-dioxolane) (PDOL) is incorporated into PIL as a high-ionic-conductivity component to fabricate a semi-interpenetrating double network quasi-solid electrolyte (SIDN-QSE). The introduction of PDOL soft chains markedly improves the ionic conductivity of PIL-based quasi-solid electrolytes while preserving the advantageous properties of PIL, including its mechanical strength and thermal stability. Furthermore, the precursor containing ionic liquid with high dielectric constant induces the formation of the anions gathering inner Helmholtz plane (IHP) nearing the surface of the cathode, followed by the construction of the artificial cathode interface through the pre-reduction process. As a result, LiFeO 4 |SIDN-QSE|Li batteries achieve a high capacity retention of 70.4 % after 700 cycles at 2 C and 30 °C. Additionally, pouch cells incorporating the SIDN-QSE demonstrate excellent safety performance, withstanding mechanical stress tests such as bending, cutting, and piercing without compromising functionality.
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高影响因子
Nanoscale
·
2016
·Vol. 9
·期 1
·334-340
·
IF 7.76
Meng Yang,Yanlei Liu,Wenxiu Hou,Xiao Zhi,Chunlei Zhang,Xinquan Jiang,Fei Pan,Yuming Yang,Jian Ni,Daxiang Cui
Human-induced pluripotent stem cells (iPS) possess an intrinsic tumor tropism ability. However, iPS cells are impeded in clinical applications of tumor therapy due to the formation of teratomas and their survival in normal organs such as the liver, lungs, spleen and kidneys. Mitomycin C (MMC) can overcome this limitation by suppressing iPS proliferation. Herein, we fabricated a safe delivery system of iPS cells treated with MMC loading with gold nanorods (AuNRs) for the targeted photothermal treatment of gastric cancer. Our results showed that the tumor cells were efficiently killed by the heat generated from the gold nanorods, and the iPS cells ultimately died due to the action of MMC seven days after the photothermal treatment. This suggested that pre-treated iPS cells with MMC can be used as a novel and safe approach for targeted tumor therapy. This paves the road for clinical translation in the future.
研究领域:
生物医学工程
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癌症研究
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纳米技术
·
干细胞生物学
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DOI
PubMed
高影响因子
Water
·
2022
·Vol. 14
·期 14
·2260
·
IF 3.53
Md. Nahid Pervez,Shengjia Ma,Siqi Huang,Vincenzo Naddeo,Yaping Zhao
In the current work, novel graphene quantum dots (GQDs)-doped goethite (α-FeOOH) nanocomposites (GQDs/α-FeOOH) were prepared by following a feasible hydrolysis method and applied for ciprofloxacin (CIP) removal. Results showed that the CIP degradation efficiency was significant (93.73%, 0.0566 min−1) in the GQDs/α-FeOOH + H2O2+ Vis system using much lower amounts of H2O2(0.50 mM), which is 3.9 times the α-FeOOH + H2O2+ Vis system. It was found that •OH,O2•−, and1O2were mainly responsible for CIP degradation in the GQDs/α-FeOOH photo-Fenton system. GQDs/α-FeOOH demonstrated broad-spectrum UV–vis-IR responsiveness in the degradation of ciprofloxacin as a function of the doping of GQDs. Additionally, GQDs/α-FeOOH showed outstanding durability (recyclability up to 3 cycles with a lower iron leaking amount, 0.020 mg L−1), a broad range of application pH, and a pretty acceptable catalytic efficacy in a variety of surface water matrices. Overall, GQDs/α-FeOOH have been shown to be an effective photocatalyst for the remediation of emerging contaminants via the workable exploitation of solar energy.Keywords:GQDs;goethite;emerging contaminants;photo-Fenton-like reaction;water pollution
研究领域:
环境科学
·
材料科学
·
化学工程
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DOI
高影响因子
Antioxidants
·
2026
·Vol. 15
·期 3
·283
·
IF 8.2
Jiayin Yang,Mingxiao Li,Xi Chen,Chao Song,Limin Fan,Liping Qiu,Dandan Li,Huimin Xu,Tiejun Li,Ying Huang,Shunlong Meng
Infections caused byAeromonas hydrophilalead to significant economic losses inMicropterus salmoidesaquaculture. Prior to the single-dose oral administration via gavage, the antibacterial efficacy of Oxolinic Acid (OXO) against theAeromonas hydrophilastrain NJ-35 was initially validated using in vitro assays. Subsequently, this study evaluated the pharmacokinetics, tissue residue depletion, and safety of OXO following a single oral dose (30 mg/kg) via medicated feed. The highest tissue concentration was observed in the kidney (Cmax17.99 mg/L), while the muscle, the primary edible tissue, reached 4.54 mg/L. Residues in all tissues declined significantly by 72 h, supporting a withdrawal period of 476 degree-days. Metabolomic and biochemical analyses at peak concentration times revealed OXO-induced oxidative stress. Perturbations in the kidney were primarily associated with amino acid metabolism, whereas the muscle exhibited alterations in both lipid and amino acid pathways. Corresponding changes in oxidative stress markers were also detected. These metabolic disturbances and biochemical shifts gradually resolved as OXO was eliminated. This study confirms the in vitro antibacterial efficacy of OXO, establishes a practical withdrawal period, and demonstrates its overall effectiveness and safety profile inMicropterus salmoidesunder the experimental conditions. The findings provide crucial data for the judicious use of OXO in freshwater aquaculture, highlight transient metabolic effects, and contribute to supporting sustainable farming practices.
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高影响因子
IONICS
·
2019
·Vol. 26
·期 3
·1109-1117
·
IF 2.289
Xie Ming,Li Libo,Zhang Yonghong,Du Jintian,Li You,Shan Yuhang,Zheng Huanyu
In this work, an all-solid-state biomaterial electrolyte derived from phthaloyl starch and poly(vinylidene fluoride) (PVDF) was introduced. Phthaloyl starch (PS) was prepared with the starch and the phthalic anhydride via a chemical method. The introduction of C=O group through the starch esterification improved the migration of the lithium ions in the all-solid-state electrolyte membrane. The AC impedance test revealed that the addition of the phthaloyl starch promoted the conductivity of electrolytes, which can reach up to 2.04 × 10 −4 S cm −1 at room temperature, and the electrochemical stability window (ESW) can achieve 4.20 V. Herein, the phthaloyl starch-PVDF–based electrolyte membrane possessed the lithium-ion transference number of 0.396. The half-cell Li/SPE/LiFePO 4 had a better charge and discharge performance, that is, 93.9 mAh g −1 and 92.2 mAh g −1 after the 50th cycle at 0.5 C and at room temperature.
Graphical abstract
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
Journal of Materials Chemistry A
·
2017
·Vol. 5
·期 37
·19982-19990
·
IF 8.867
Pei Shi,Shaohua Fang,Jun Huang,Dong Luo,Li Yang,Shin-ichi Hirano
In this work, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (F-EPE), a kind of non-flammable hydrofluoroether, was initially mixed with lithium bis(oxalato)borate (LiBOB) and gamma-butyrolactone (GBL) to formulate a safe electrolyte for lithium-ion batteries. It was found that the addition of F-EPE endowed this novel electrolyte with a high safety level, low surface tension and good wettability to the separator and electrodes. More importantly, this safe electrolyte supported the graphite/LiCo1/3Mn1/3Ni1/3O2 full cell in achieving excellent electrochemical performances. During the prolonged cycle test at room temperature, its capacity retention after 500 cycles could reach 80.6%, which was comparable to that of a commercial electrolyte. Its rate performance at room temperature and cycle performance at elevated temperature (60 °C) surpassed those of the commercial electrolyte. In particular, its low-temperature performance was remarkable, and the cell could deliver a capacity as high as 74.2 mA h g−1 at −40 °C. In view of these results, such a safe electrolyte showed tremendous potential for practical application.
研究领域:
材料科学
·
能源技术
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xinyue Zhang,Yuandong Lin,Qijun Wang,Jun-Hu Cheng
Carbon dots endowed MIL-53(Fe) with four synergistic functions. • A dual-mode aptasensor enabled accurate pathogen detection. • A closed-loop strategy integrated detection with safe pathogen elimination. • A paper-based assay achieved rapid visual food safety screening. The increasing prevalence of foodborne pathogens has created an urgent need for integrated strategies on combining rapid on-site detection with safe inactivation. In this study, a multifunctional aptamer-modified CDs@MIL-53(Fe) nanocomposite was developed to construct a closed-loop management platform integrating target recognition, dual-mode signal transduction, and in situ photothermal-chemodynamic sterilization. This nanocomposite uniquely combined four functionalities within a single material: fluorescence emission, oxidase/peroxidase-mimicking activity, photocatalytic reactive oxygen species generation, and efficient photothermal conversion. After aptamer functionalization, the platform enabled both colorimetric and fluorescence dual-mode detection. Using Listeria monocytogenes as a proof-of-concept model, detection limits of 6.01 CFU/mL (colorimetric) and 61.38 CFU/mL (fluorescence) were obtained with the proposed method, within a linear range of 10 1 –10 6 CFU/mL. Importantly, the sensing mechanism allowed easy adaptation to other pathogens by simply replacing the aptamer. After detection, the same platform achieved in situ synergistic sterilization (>99.5%), and the used test strips could be safely discarded. Validation in chicken breast and milk samples, along with successful translation to a paper-based device, demonstrated the practical application potential of this universal pathogen management strategy in food safety supervision and disease prevention.
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高影响因子
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