CELLULOSE
·
2022
·Vol. 29
·期 16
·8781-8795
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IF 6.123
Zhang Tao,Yuan Tiancheng,Xiao Xiao,Peng Haozhe,Fang Xinyu,Wang Kaili,Liu Xiaorong,Li Yanjun
The functional paper holds significant potential in some special fields, which has achieved great development. Nevertheless, using cellulose paper to fabricate functional paper, which integrates transparency, robustness, flexibility, shape memory, and sustainability, remains a challenge. Herein, the vitrimer precursor was vacuum impregnated into cellulose paper and then in-situ polymerized to develop a vitrimer-cellulose paper (VCP) with transparency, shape manipulation, robustness, and sustainability. Taking advantage of the vitrimer’s dynamic performance, the resulting VCP demonstrated excellent optical transparency (transmittance of 84%, haze of 75%), enhanced mechanical strength (tensile strength of 80.5 MPa), chemical resistance, thermal-triggered shape manipulation, and reprocessing. Noteworthily, VCP possessed outstanding light management capability with effective light propagating and scattering performance. Furthermore, VCP laminate showed increased mechanical property with the increased layers, and it can be reprocessed to a bulk composite after crushing. These incorporated merits of VCP make a promising candidate for light management and sustainable building application.
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高影响因子
MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 9
·1-9
·
IF 6.408
Shang Shuqi,Wang Dongwei,Wang Jiasheng
A dual-mode electrochemical biosensor for acetamiprid detection was proposed for the first time based on carbon quantum dots/Prussian blue (CQDs/PB)-functionalized poly(3,4-ethylenedioxythiphene) (PEDOT) nanocomposite. The nanocomposite with spherical stacking nanostructure showed high surface area, excellent catalytic ability, and cycling stability. The biosensor can be effortlessly constructed after the immobilization of acetamiprid aptamer. The concentration of acetamiprid can be determined by differential pulse voltammetry (DPV) based on its signal change deduced from the pristine PB. With the capture of acetamiprid, the response current (I-T) signal generated by hydrogen peroxide catalysis from the biosensor can also been used to establish the method for monitoring acetamiprid. The dual-mode biosensor showed a wide linear range from 10 −12 g mL −1 to 10 −6 g mL −1 , low detection limits of 6.84 × 10 −13 g mL −1 and 4.99 × 10 −13 g mL −1 , and ultrafast detection time of 25 s and 5 s through DPV and I-T mode, respectively. The biosensor possessed excellent selectivity and stability. More importantly, the biosensor was successfully applied to detect acetamiprid residues in vegetables, proving a promising approach for routine detection of pesticide in real samples. Graphical abstract The biosensor based on PEDOT/CQDs/PB for acetamiprid can be effortlessly constructed through both the increase of differential pulse voltammetry (DPV) signal change deduced by the pristine PB and the decrease of the response current (I-T) signal of the reduction of hydrogen peroxide catalyzed by PEDOT/CQDs/PB.
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PubMed
高影响因子
Science China-Materials
·
2022
·Vol. 65
·期 11
·2989-2996
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IF 8.64
Zhang Tao,Sang Zhiyuan,Yin Lichang,Han Yonghuan,Si Wenping,Yin Yuxin,Hou Feng
Lithium metal anode possesses a high theoretical capacity and the lowest redox potential, while the severe growth of Li dendrite prevents its practical application. Herein, we prepared a structure of Li 3 P nanosheets and Ni nanoparticles decorated on Ni foam (NF) as a three-dimensional (3D) scaffold for dendrite-free Li metal anodes (Li-Li 3 P/Ni@Ni foam anodes, shortened as L-LPNNF) using a facile melting method. The Li 3 P nanosheets exhibit excellent Li-ion conductivity as well as superior lithiophilicity, and the 3D nickel scaffold provides sufficient electron conductivity and ensures structure stability. Therefore, symmetric cells assembled by L-LPNNF possess lowered voltage hysteresis and improved long cycle stability (a voltage hysteresis of 104.2 mV after 500 cycles at a high current density of 20 mA cm −2 with a high capacity of 10 mA h cm −2 ), compared with the cells assembled with Li foil or Li-NF anodes. Furthermore, the full cells with paired L-LPNNF anodes and commercial LiFePO 4 cathodes suggest a specific capacity of 124.6 mA h g −1 and capacity retention of 90.8% after 180 cycles with the Coulombic efficiency (CE) of ∼100% at a current rate of 1 C. This work provides a potentially scalable option for preparing a mixed electronic-ionic conductive and lithiophilic scaffold for dendrite-free Li anodes at high current densities.
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高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
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2022
·Vol. 40
·期 10
·1141-1153
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IF 3.815
Guo Xiao-Xiao,Hou Shi-Chang,Chen Jun,Liao Cong,He Wei-Dong
Incautious discharge of organic dyes such as methyl orange (MO) has produced serious pollution to the environment, calling for the efficient techniques to remove them with retaining the green world. The photo-catalytic degradation of organic dyes is promising among the developed techniques. Thus, a strategy based on transpiration-prompted photocatalytic degradation of dye pollutant under sunlight is put forward. Aniline (ANI) is graft-polymerized onto poly(acrylamide- co-N -4-aminophenylacrylamide) (PAAm) cryogel embedded with gold nanoparticles (AuNPs, diameter: 4–10 nm). The obtained cryogels integrated with AuNPs and PANI inside PAAm matrix (AuNP@PAAm- g -PANI) have been structurally explored based on the chemical composition and the phase/porous morphology. SEM and TEM observation shows that PANI and AuNPs are uniformly distributed in PAAm matrix. Since the macro-porosity of cryogel, hydrophilicity of PAAm and photo-thermal activity of PANI, PAAm-g-PANI cryogels without AuNPs can have a photo-thermal evaporation rate of water at 1.63 kg·m −2 ·h −1 . As a comparison, AuNP@PAAm- g -PANI cryogels with AuNPs exhibit higher one at 2.20 kg·m −2 ·h −1 , suggesting the promotion of AuNPs to photo-thermal evaporation. Meanwhile, PANI appreciatively assists AuNPs to display higher catalytic ability for the oxidative degradation of MO. Therefore, the removal of MO from water is obviously prompted by the water transpiration under sunlight with AuNP@PAAm- g -PANI cryogels, whose rate constant can reach to 0.320 h −1 , being three folds of that for the sole absorption of MO. This transpiration-prompted photocatalytic degradation provides a fascinating route to eliminate organic pollutants and obtain pure water from wastewater simultaneously with sustainable sunlight energy.
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JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 30
·14413-14429
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IF 4.682
Li Hao,Jiang Wenjia,Zhang Yanan,Lu Zhehong,Hu Yubing,Xiao Chuan,Zhang Tengyue,She Fengya
The migration of excess plasticizer seriously affects the safety of propellants. In this paper, GO was functionalized with isocyanate groups (TGO) to improve its morphology, size, and reactivity. The composite liner with a multi-crosslinked structure was prepared, and its anti-migration properties were systematically studied. TGO fillers were added to the matrix to participate in crosslinking. A denser microstructure was constructed, which reduced the number and size of pores that small molecules could pass through, thus reducing their migration. The microstructure, anti-migration performance, and adhesion of the liner with 0.2 wt% TGO showed the greatest improvement. Compared with the hydroxy-terminated polybutadiene (HTPB) liner, the crystallinity percentage of the TGO/HTPB composite liner was 28.49% higher, and the crosslink density was 7.11% higher. The concentration of dioctyl sebacate (DOS) that migrated into the liner was decreased by 32.25%. In addition, the adhesion strength increased from 0.25 MPa to 1.56 MPa, which meets the requirements of current propellant systems. This study provides a feasible way to optimize the anti-migration and adhesion properties of composite liners. Graphical abstract
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CATALYSIS LETTERS
·
2022
·Vol. 153
·期 6
·1786-1796
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IF 2.936
Zhao Wei,Zhang Hongyi,Zhang Lei,Gong Jianchao,Chen Tianen,Ren Liming,Ji Yaxiong,Meng Fanbin
The methanol oxidation reaction is a promising route to eliminating trace amount of methanol in exhaust gases which aroused serious environmental concern. In this work, a novel Pd/MgAl 2 O 4 catalyst was prepared to construct the metal-support interface and employed in the methanol oxidation reaction. The reaction results show that the Pd/MgAl 2 O 4 catalyst could achieve 100% methanol oxidation at 198 ℃ over the Pd/MgO and Pd/Al 2 O 3 catalysts. The high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), CO-chemisorption, H 2 temperature programmed reduction (H 2 -TPR), and CO diffuse reflectance infrared Fourier transformed spectroscopy (CO-DRIFTS) show that the Pd was uniformly distributed over the MgAl 2 O 4 support due to strong interaction between Pd and MgAl 2 O 4 . The mechanism studies show that the abundant Pd-MgAl 2 O 4 interfaces significantly contributed to the reaction enhancement. The Pd-MgAl 2 O 4 interfaces could greatly enhance the oxidation reaction at a lower temperature with the assistance of oxygen vacancies compared with traditional oxide catalysts, which was confirmed by methanol temperature program surface reaction (MeOH-TPSR) experiments. In-situ DRIFTS is carried out to elucidate the reaction mechanism and establish the structure − activity relationship: the methanol could be effectively absorbed on the MgAl 2 O 4 support with oxygen vacancies to form bidentate formate, then the Pd species assisted the intermediates converting to CO 2 product. The Pd/MgAl 2 O 4 catalyst and its enhancement mechanism investigation provided a potential strategy in the VOCs removal catalysis development. Graphical Abstract
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2022
·Vol. 33
·期 23
·18497-18506
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IF 2.779
Ji Rongxue,Li Ruixiang,Feng Guangdi,Lao Jie,Jiang Chunli,Tian Bobo,Luo Chunhua,Lin Hechun,Peng Hui,Duan Chun-Gang
Optoelectronic synapses have been attracting significant attention due to their important role in visual information processing. In this work, we fabricate an all-organic optoelectronic synaptic device with a double heterojunction structure of PEDOT:PSS/poly(vinylidene fluoridetrifluoroethylene) (P(VDF-TrFE))/copper (II) phthalocyanine (CuPc) by a simple preparation process. The introduction of a dielectric P(VDF-TrFE) layer between PEDOT:PSS and CuPc layers benefits the trapping of charge carriers and slows down the electron-hole recombination rate. This two-terminal optoelectronic device is successfully applied to simulate synaptic functions of biological synapses by using optical pulses of 660 nm, including paired-pulse facilitation, spike-duration dependent plasticity, spike-rate dependent plasticity, spike-number dependent plasticity, and learning-experience behavior. Furthermore, the key characteristics of a nociceptor and the optical logic function of the “AND” and “OR” operations are also emulated. This work illustrates the potential of such device for constructing neuromorphic computing systems at the physical level.
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JOURNAL OF NANOBIOTECHNOLOGY
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2022
·Vol. 20
·期 1
·1-14
·
IF 9.429
Li Xing,Zhang Lingpu,Li Tuo,Li Shumu,Wu Wenjing,Zhao Lingyu,Xie Peng,Yang Jinqi,Li Peipei,Zhang Yangyang,Xiao Haihua,Yu Yingjie,Zhao Zhenwen
Background Cisplatin, the alkylating agent of platinum(II) (Pt(II)), is the most common antitumor drug in clinic; however, it has many side effects, therefore it is higly desired to develop low toxicity platinum(IV) (Pt(IV)) drugs. Multi-omics analysis, as a powerful tool, has been frequently employed for the mechanism study of a certain therapy at the molecular level, which might be helpful for elucidating the mechanism of platinum drugs and facilitating their clinical application.Methods Strating form cisplatin, a hydrophobic Pt(IV) prodrug (CisPt(IV)) with two hydrophobic aliphatic chains was synthesized, and further encapsulated with a drug carrier, human serum albumin (HSA), to form nanoparticles, namely AbPlatin(IV). The anticancer effect of AbPlatin(IV) was investigated in vitro and in vivo. Moreover, transcriptomics, metabolomics and lipidomics were performed to explore the mechanism of AbPlatin(IV).Results Compared with cisplatin, Abplatin(IV) exhibited better tumor-targeting effect and greater tumor inhibition rate. Lipidomics study showed that Abplatin(IV) might induce the changes of BEL-7404 cell membrane, and cause the disorder of glycerophospholipids and sphingolipids. In addition, transcriptomics and metabolomics study showed that Abplatin(IV) significantly disturbed the purine metabolism pathway.Conclusion sThis research highlighted the development of Abplatin(IV) and the use of multi-omics for the mechanism elucidation of prodrug, which is the key to the clinical translation of prodrug.Graphical Abstract
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高影响因子
KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2022
·Vol. 39
·期 10
·2792-2799
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IF 3.146
Liu Wenju,Bai Hongjuan,Gao Weiqiang,Chen Zihan,Liu Zhuangzhuang,Chen Zilong,Chen Junhang
A batch system was applied to investigate the behavior of adsorption of methylene blue (MB) and crystal violet (CV) from aqueous solution using a renewable magnetic alginate composite containing graphene oxide (M-GO/Alg) in single and binary systems. The surface morphology and chemical structure of the adsorbent were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and vibrating sample magnetometer (VSM) analysis. The experimental data were fitted by the isotherm models and adsorption kinetics. And the maximum adsorption quantity of MB and CV reached 459.85 and 69.46 mg/g at 298 K for M-GO/Alg, respectively, as deduced from Langmuir model. After five successive adsorptive removal cycles for both dyes, no significant performance loss was observed for M-GO/Alg. Moreover, M-GO/Alg was easily separated under an external magnetic field. In binary system, MB and CV exhibited competitive adsorption. The obtained results suggested that M-GO/Alg can be used as an eco-friendly and recyclable adsorbent to remove cationic dyes from aqueous solutions.
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MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 6
·1-11
·
IF 6.408
Shen Yizhong,Wei Yunlong,Liu Zhenmin,Nie Chao,Ye Yingwang
Accurate and low-cost onsite assay of residual antibiotics in food and agriculture-related matrixes (e.g., milk) is of significant importance for evaluating and controlling food pollution risk. Herein, we employed hybrid Cu-doped-g-C 3 N 4 nanozyme to engineer smartphone-assisted onsite visual sensor for reliable and precise reporting the levels of tetracycline (TC) residues in milk through π-π stacking-triggered blocking effect. Benefiting from the synergetic effects of Cu 2+ and g-C 3 N 4 nanosheet, Cu-doped-g-C 3 N 4 nanocomposite exhibited an improved peroxidase-like activity, which could effectively catalyze H 2 O 2 to oxidate colorless TMB into steel-blue product oxTMB. Interestingly, owing to the blocking effect caused by the π-π stacking interaction between TC tetraphenyl skeleton and Cu-doped-g-C 3 N 4 nanozyme, the affinity of Cu-doped-g-C 3 N 4 nanocomposite toward the catalytic substrates was remarkably blocked, resulting in a TC concentration-dependent fading of solution color. Using smartphone-assisted detection a simple, low-cost, reliable, and sensitive portable colorimetric sensor-based nanozyme for onsite visual monitoring the residual TC in milk was successfully developed with a detection limit of 86.27 nM. Of particular mention is that this detection limit is comparable to most other reported colorimetric methods and below most official allowable residue thresholds in milk matrixes. This work gave a novel insight to integrate two-dimensional (2D) artificial nanozymes-based π-π stacking-triggered blocking effect with smartphone-assisted detection for developing efficient and low-cost colorimetric point-of-care testing of the risk factors in food and agriculture-related matrixes. Graphical abstract
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JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2022
·Vol. 30
·期 9
·3791-3801
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IF 4.705
Dong Yuhui,Wang Bing,Liang Tian,Huang Dongdong,Jin Jiali,Li Weihe,Fu Lu
Myocardial fibrosis is responsible for the current ineffective treatment of heart hypertrophy. Recent research findings have shown that Melatonin (Mel) reduces heart hypertrophy and fibrosis by promoting sleep and melatonin levels in the body. With the use of poly(lactide) polycarboxy betaine (PLGA-COOH), cardiac homing peptide, and gold nanoparticles (AuNPs), we have developed a unique melatonin delivery and transportation approach via a simple two-step procedure, which we discuss in this study. A mouse model of pressure overdrive cardiac hypertrophy was used to evaluate the effects of nanoparticles (Mel/CHP@AuNPs) on myocardial fibrosis and hypertrophy in the heart. The nanocomposites of Mel/CHP@AuNPs have a diameter of 220.5 ± 4.25 nm and negative zeta potential of 20.18 ± 1.29 mV. An excellent encapsulation capacity for AuNPs (76.12 ± 4.01%) and Melatonin (78.58 ± 5.79%) were found in the Mel/CHP@AuNPs and magnetic characteristics that showed no residual magnetization or coercivity, as demonstrated by the construction of magnetic hysteresis curves. For example, the in vivo echocardiography and real-time polymerase chain reaction (RT-PCR) and histological evaluations demonstrated that Mel/CHP@AuNPs' low dosages improved myocardial hypertrophy and fibrosis. One of the most promising nanoagents for the treatment of cardiac disease is these basic biocompatible, dual-targeting nanoagents.
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Science China-Chemistry
·
2022
·Vol. 65
·期 6
·1112-1121
·
IF 10.138
Liu Liangbin,Tang Chongyang,Bu Lingzheng,Xiao Xiangheng,Huang Xiaoqing
Two-dimensional (2D) platinum (Pt)-based nanomaterials are considered as the ideal fuel cell catalysts, while their rational synthesis associated with phase control remains a formidable challenge. Herein, we firstly design the novel 2D Pt-lead-sulphur heterophased nanosheets (PtPbS HPNSs) as efficient high-toleration electrocatalysts for methanol oxidation reaction (MOR). They exhibit much higher activity and more highlighted bifunctional antipoisoning abilities than PtPb NSs and commercial Pt/C. Further density functional theory (DFT) simulation verifies that the decreased electron density of Pt sites worked by Pb and S makes CO intermediate favorable to desorb, avoiding the formation of CO*-polluted Pt sites. Simultaneously, this heterophased interface effectively weakens the adsorption of S 2− -species and improves the S-poisoning tolerance, showing a route to realize nearly innoxious catalysis. The present work highlights the importance of heterophase control in tuning antipoisoning property for 2D Pt-based nanomaterials, which is key for the rational design of efficient fuel cell anodic catalysts.
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