Foods
·
2024
·Vol. 13
·期 12
·1845
·
IF 4.7
Yiming Zhao,Baoshan He,Danyang Li,Leyan Gao,Wenjie Ren
In the realm of analysis, the lateral flow immunoassay (LFIA) is frequently utilized due to its capability to be fast and immediate. However, the biggest challenge of the LFIA is its low detection sensitivity and tolerance to matrix interference, making it impossible to enable accurate, qualitative analyses. In this study, we developed a new LFIA with higher affinity and sensitivity, based on a nanobody (G8-DIG) and CuS nanoflowers-Au (CuS NFs-Au), for the detection of aflatoxin B1(AFB1) in maize. We synthesized the immunoprobe G8-DIG@CuS NFs-Au, stimulated the in situ development of Au nanoparticles (Au NPs) on Cu NFs by electrical displacement, and obtained Cu NFs-Au for fixing the G8-DIG. G8-DIG@CuS NFs-Au probe-based LFIAs may, in ideal circumstances, use a strip chromatography reader to accomplish sensitive quantitative detection and qualitative visualization. AFB1has a detection range of 2.82–89.56 µg/L and a detection limit of 0.87 µg/L. When compared with an LFIA based on CuS NFs, this sensitivity is increased by 2.76 times. The practical application of this method in corn flour demonstrated a recovery rate of 81.7% to 117%. Therefore, CuS NFs-Au show great potential for detecting analytes.
研究领域:
食品安全
·
生物技术
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Junhua Lu,Hedong Jiang,Pingchun Guo,Jiake Li,Hua Zhu,Xueyun Fan,Liqun Huang,Jian Sun,Yanxiang Wang
In recent years, significant progress has been made in the development of supercapacitors (SCs) for high-power applications, including electric vehicles, consumer electronics, military, and industrial uses. One crucial research area focuses on enhancing the electrochemical properties of SCs through the development of superior electrode materials. A composite electrode material (CuS/Cu 2 S/rGO) that combines Cu-sulfur compounds and graphene has been synthesized using the continuous ion layer adsorption (SILAR) method on reduced graphene thin films (rGO). The CuS/Cu 2 S/rGO film SC demonstrates exceptional electrochemical properties, attributed to the synergistic effect of CuS, Cu 2 S, and rGO. At a current density of 0.5 A g −1 , the mass-specific capacitance reaches 355.70 F g −1 , with a high energy density of 49.40 Wh kg −1 and a peak power density of 8511.49 W kg −1 . Even at an increased current density of 5 A g −1 , the mass-specific capacitance remains impressive at 239.62 F g −1 , indicating excellent rate performance. Furthermore, after 1000 constant current charge and discharge cycles, the material maintains a capacity retention rate of 87.13 %, underscoring its robust cycling stability.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2021
·
IF 7.267
Xiaoyue Fan,Xiaolin Qiu,Lixin Lu,Binglin Zhou
Due to the low direct thermal effect of solar irradiation , conventional phase-change microcapsules have poor solar energy utilization capability. To increase the solar-to-thermal energy storage efficiency, in this work, we reported a light-driven microencapsulated n-eicosane based on a crystalline TiO 2 shell coated by graphene oxide (GO)-based copper monosulfide (CuS) (CuS-GO) nanoconverter. Due to the combination of local surface plasma resonance (LSPR), semiconductor and synergetic effects, the CuS-GO nanoconverter conferred full-spectrum solar light-to-thermal conversion capability on the microcapsule system. The resultant n-eicosane@TiO 2 @CuS-GO microcapsules achieved high full-spectrum solar-to-thermal storage efficiency (97.1%) under stimulated solar light with no compromise of the latent heat density (212.0 ± 1.2 J/g). Furthermore, the thermal conductivity of n-eicosane@TiO 2 @CuS-GO (0.985 ± 0.004 W/(m·K)) significantly increased by 39.9% compared with that of n-eicosane@TiO 2 . These results indicate that this light-driven microcapsule with superior properties is advantageous for direct solar-to-thermal energy utilization applications.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 23
·17458-17465
·
IF 3.84
Qun Wei Shu,Chun Mei Li,Peng Fei Gao,Ming Xuan Gao,Cheng Zhi Huang
CuS materials with peroxidase activity have been prepared but greatly limited by the large dosage and low peroxidase activity. In this paper, porous hollow CuS nanospheres with a variety of sizes were fabricated by one-pot method based on a facile template-assisted hydrothermal approach. The size of the porous hollow CuS nanospheres could be simply tuned by adjusting the molar ratios of reactants, the reaction temperature, and time. The as-prepared porous hollow CuS nanospheres were demonstrated to exhibit more prominent intrinsic peroxidase-like activity using TMB as a peroxidase substrate in the presence of hydrogen peroxide (H2O2). This is a significant comparison to previous reports, demonstrating that the new developed synthetic porous hollow CuS nanospheres can be a new kind of candidate for peroxidase mimics, and the nanospheres are promising for applications in biosensors, environmental monitoring, and so on.
研究领域:
材料科学
·
生物医学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Yang Zhang,Nengneng Xu,Bingbing Gong,Xiaoxiao Ye,Yi Yang,Zhaodi Wang,Biyan Zhuang,Min Wang,Woochul Yang,Guicheng Liu,Joong Kee Lee,Jinli Qiao
Storing solar energy in battery systems is crucial to achieving a green and sustainable society. However, the efficient development of photo-enhanced zinc-air batteries (ZABs) is limited by the rapid recombination of photogenerated carriers on the photocathode. In this work, the visible-light-driven CoS 2 /CuS@CNT-C 3 N 4 photocatalyst with unique petal-like layer structure was designed and developed, which can be used as air electrode for visible-light-driven ZABs. The superior performance of ZABs assembled by CoS 2 /CuS@CNT-C 3 N 4 was mainly attributed to the successful construction of Schottky heterojunction between g-C 3 N 4 and carbon nanotubes (CNTs), which accelerates the transfer of electrons from g-C 3 N 4 to CoS 2 /CuS cocatalysts, improves the carrier separation ability, and extends the carrier lifetime. Thereinto, the visible-driven ZABs assembled by CoS 2 /CuS@CNT-C 3 N 4 photocatalyst has a power density of 588.90 mW cm –2 and a charge-discharge cycle of 643 h under visible light irradiation, which is the highest performance ever reported for photo-enhanced ZABs. More importantly, the charge-discharge voltage drop of ZABs was only 0.54 V under visible light irradiation, which is significantly lower than the voltage drop (0.94 V) in the dark. This study provides a new idea for designing efficient and stable visible-light-driven ZABs cathode catalysts.
研究领域:
材料科学
·
能源技术
·
光催化
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Chan Zhou,Lei Zhu,Lin Deng,Haojie Zhang,Hanxuan Zeng,Zhou Shi
For improving the catalytic activity and recyclability of CuS in Fenton-like reaction processes, novel sulfur vacancies-enriched CuS@MIL-101(Fe) was constructed, characterized, and examined as heterogeneous catalysts for activating peroxymonosulfate (PMS) to degrade coumarin (COU). Thanks to the redox pairs of Fe 3+ /Fe 2+ , Cu + /Cu 2+ , S 2− /S 2 2− /S 0 /sulfate species, copper-iron synergistic effect and sulfur vacancies, the CuS@MIL-101(Fe) realized a complete removal of COU (30 μM) in 10 min with reaction rate constant of 0.577 min −1 , which was 11.1 and 17.0 times of CuS and MIL-101(Fe), respectively. The effect of various experimental conditions (i.e., initial pH, CuS@MIL-101(Fe) dosage, PMS concentration, and background anions) on COU degradation was discussed, and the stability and versatility of CuS@MIL-101(Fe) was studied as well. Radical scavenging experiments and electron paramagnetic resonance (EPR) spectroscopy identified • OH and 1 O 2 as the main reactive oxygen species (ROS). Finally, the possible mechanism of higher COU degradation efficiency in the CuS@MIL-101(Fe) activated PMS system and the degradation pathways were also deeply explored. Consequently, this work provided a novel insight into construction of sulfur vacancies-enriched heterogeneous catalysts for efficiently activating PMS for refractory organic pollutants elimination.
研究领域:
环境科学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Chuan Shi,Haohao Cui,Enhui Ma,Ke Wang,Hong Wang
The large amount of mineral processing wastewater generated during the extraction of rare earth elements, especially the organic flotation reagents inside, has posed great environmental threats. In this work, a facile method to prepare tubular micromotors based on CuS and MnO 2 was proposed, followed by further integration of Bi 2 MoO 6 on the micromotor surface to enhance the photocatalytic activity. The resulting Bi 2 MoO 6 @MnO 2 @CuS tubular micromotors which could realize autonomous motion by the generation of abundant micro/nanobubbles were employed for the removal of salicylhydroxamic acid (SHA), a commonly used reagent in rare earth ores flotation, via photo-assisted Fenton-like processes. The incorporation of Bi 2 MoO 6 in the tubular structure increased the SHA removal efficiency under visible light by 32.51 %. Moreover, the synergistic effect between photocatalysis and Fenton-like processes contributed to a SHA removal efficiency of 95.51 % within 30 minutes. A possible mechanism was proposed to explain the enhanced catalytic activity of the tubular micromotors. This study provides a way to fabricate tubular micromotor with low-cost and stable materials in batches, which may shed light on the treatment of rare earth ore processing wastewater.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2016
·Vol. 45
·期 34
·13456-13465
·
IF 4.177
Zhifang Gao,Xijian Liu,Guoying Deng,Feng Zhou,Lijuan Zhang,Qian Wang,Jie Lu
In this work, a new multifunctional nanoplatform (Fe3O4@mSiO2-FA-CuS-PEG nanocomposite) for magnetic resonance imaging (MRI) and targeted chemo-photothermal therapy, was firstly fabricated on the basis of magnetic mesoporous silica nanoparticles (Fe3O4@mSiO2), on which folic acid (FA) was grafted as the targeting reagent, CuS nanocrystals were attached as the photothermal agent, and polyethylene glycol (PEG) was coupled to improve biocompatibility. The characterization results demonstrated that the fabricated Fe3O4@mSiO2-FA-CuS-PEG nanocomposites not only showed strong magnetism and excellent MRI performance, but also had a high doxorubicin (DOX, an anticancer drug) loading capacity (22.1%). The loaded DOX can be sustainably released, which was apt to be controlled by pH adjustment and near infrared (NIR) laser irradiation. More importantly, targeted delivery of the DOX-loaded Fe3O4@mSiO2-FA-CuS-PEG nanocomposites could be accomplished in HeLa cells via the receptor-mediated endocytosis pathway, and this exhibited synergistic effect of chemotherapy and photothermal therapy against HeLa cells under irradiation with a 915 nm laser. Therefore, the fabricated multifunctional Fe3O4@mSiO2-FA-CuS-PEG nanocomposite has a great potential in image-guided therapy of cancers.
研究领域:
生物医学工程
·
纳米医学
·
肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Frontiers of Environmental Science & Engineering
·
2020
·Vol. 15
·期 4
·1-13
·
IF 4.053
Mao Wei,Zhang Lixun,Wang Tianye,Bai Yichen,Guan Yuntao
A visible-light-driven Bi 2 WO 6 /CuS p-n heterojunction was fabricated using an easy solvothermal method. The Bi 2 WO 6 /CuS exhibited high photocatalytic activity in a mixed system containing rhodamine B (RhB), tetracycline hydrochloride (TCH), and Cr (VI) under natural conditions. Approximately 98.8% of the RhB (10 mg/L), 87.6% of the TCH (10 mg/L) and 95.1% of the Cr(VI) (15 mg/L) were simultaneously removed from a mixed solution within 105 min. The removal efficiencies of TCH and Cr(VI) increased by 12.9% and 20.4%, respectively, in the mixed solution, compared with the single solutions. This is mainly ascribed to the simultaneous consumption electrons and holes, which increases the amount of excited electrons/holes and enhances the separation efficiency of photogenerated electrons and holes. Bi 2 WO 6 /CuS can be applied over a wide pH range (2–6) with strong photocatalytic activity for RhB, TCH and Cr(VI). Coexisiting dissolved organic matter in the solution significantly promoted the removal of TCH (from 74.7% to 87.2%) and Cr(VI) (from 75.7% to 99.9%) because it accelerated the separation of electrons and holes by consuming holes as an electron acceptor. Removal mechanisms of RhB, TCH, and Cr(VI) were proposed, Bi 2 WO 6 /CuS was formed into a p-n heterojunction to efficiently separate and transfer photoelectrons and holes so as to drive photocatalytic reactions. Specifically, when reducing pollutants (e.g., TCH) and oxidizing pollutants (e.g., Cr(VI)) coexist in wastewater, the p-n heterojunction in Bi 2 WO 6 /CuS acts as a “bridge” to shorten the electron transport and thus simultaneously increase the removal efficiencies of both types of pollutants.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry B
·
2014
·Vol. 2
·期 33
·5358-5367
·
IF 0
Xijian Liu,Fanfan Fu,Kaibing Xu,Rujia Zou,Jianmao Yang,Qian Wang,Qian Liu,Zhiyin Xiao,Junqing Hu
In this work, we have developed a novel difunctional nanoplatform for targeted chemo-photothermal therapy. It is based on hollow mesoporous silica nanospheres as a carrier for anticancer drug-loading CuS nanoparticles attached on a silica nanosphere surface as a photothermal agent, and folic acid (FA) conjugated with a silica nanosphere as a cancer cell target. The nanoplatform has demonstrated a good photothermal effect and excellent doxorubicin (DOX) loading capacity (as high as 49.3 wt%). The photothermal agent and DOX can be targeted to deliver into cancer cells via a receptor mediated endocytosis pathway. Moreover, the release of DOX from the hollow mesoporous silica nanospheres can be triggered by pH and NIR light. Both chemotherapy and photothermal therapy can be simultaneously driven by irradiation with a 980 nm laser. More importantly, the combination of chemotherapy and photothermal therapy shows a better therapy effect than the individual therapies, thus demonstrating a synergistic action.
研究领域:
材料科学
·
肿瘤学
·
纳米医学
✓ 已验证
DOI
PubMed
Nanoscale
·
2018
·Vol. 10
·期 6
·2866-2875
·
IF 7.233
Yeying Wang,Xijian Liu,Guoying Deng,Jian Sun,Haikuan Yuan,Qi Li,Qiugeng Wang,Jie Lu
In this study, a versatile tumor-targeted and multi-stimuli-responsive drug delivery vehicle (Se particle@porous silica–folic acid–copper sulfide/doxorubicin (Se@SiO2–FA–CuS/DOX)) was fabricated for combined photothermal therapy with chemotherapy in cancer treatment. Due to excellent targeting ability, the Se@SiO2–FA–CuS/DOX nanocomposites actively accumulated in tumor tissues and thus provided photothermal therapy under NIR irradiation and chemotherapy through the release of DOX and Se. Owing to the synergistic effect of chemotherapy (Se and DOX) and photothermal therapy, the Se@SiO2–FA–CuS/DOX nanocomposites could efficiently inhibit cancer cells both in vitro and in vivo and even completely eliminate tumors. Moreover, as the toxicity of DOX could be reduced by Se, the treatment using Se@SiO2–FA–CuS/DOX nanocomposites exhibited no appreciable adverse reactions. Thus, the Se@SiO2–FA–CuS/DOX nanocomposites have great potential as a multifunctional nanoplatform in future clinical applications.
研究领域:
肿瘤学
·
纳米医学
·
药剂学
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2019
·Vol. 43
·期 8
·3309-3316
·
IF 3.069
Wei Jin,Yanqiu Fu,Weiquan Cai
In this paper, a CuS/graphene oxide (GO)/multiwalled carbon nanotube (MWCNT) nanocomposite was prepared for the first time for ultrasensitive electrochemical non-enzymatic H2O2 detection in the alkaline environment. The morphology and microstructure of the CuS/GO/MWCNT nanocomposite were systematically characterized, in which the novel hybrid architectures of the nanoparticles, nanotubes and nanosheets are determined. As a result, the as-fabricated electrochemical sensor exhibits an excellent H2O2 amperometric response with a wide linear range from 0.45 mM to 60 mM, a low detection limit of 0.6 μM and an ultra-high sensitivity of 386 μA mM−1 cm−2. Besides, the long-term stability and outstanding reproducibility were also evaluated, suggesting the promising potential for the determination of H2O2 in practical applications.
研究领域:
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）