Small
·
2025
·
IF 12.1
Zhujun Ai,Huan Cai,Changjin Liu,Yan Zhao,Qing Fu,Ningke Fan,Yujian Li,Siqiao Li,Song Zhou,Chunyang Li,Juan Li,Shijia Ding,Rui Chen
Fluorescent-colorimetric nanoparticles (FCNPs) attract considerable interest as an emerging dual-signal reporter for on-site qualitative/quantitative point-of-care testing. However, the suboptimal signaling components and self-assembled structure lacking physical isolation in traditional FCNPs result in low fluorescence brightness, poor stability, and strong internal filtration effect (IFE), which severely limits their wide application in lateral flow assay (LFA). Here, ordered self-assembly for hydrophobic upconversion nanoparticles (UCNPs) is developed using 3D porous space magnetic dendritic mesoporous silica (MS), stepwise surface silanization, and polydopamine (PDA) flexible scaffold modification to fabricate MS@UCNPs@PDA (MSUD). With rational design, MSUD improves stability and luminescence intensity (131 times higher than quantum dot-based fluorophores), and also eliminates IFE and fluorescence background interference on LFA strips. The detection limits of MSUD-labeled LFA for qualitative and quantitative detection of methamphetamine by naked eye-based colorimetric and smartphone-based fluorescence strategy are 1.047 × 10 4 pg mL −1 and 47.25 pg mL −1 , ≈10- and 2116- times lower than that of gold nanoparticles-LFA, respectively. The practicality of the MSUD-based LFA is validated in 83 urine/hair forensic samples, with the quantitative determination results in good agreement with the liquid chromatography-mass spectrometer data. This work presents an innovative strategy for constructing FCNPs, facilitating their progressive development and widespread applications.
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DOI
PubMed
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 27
·e01268
·
IF 2
Zhengfang Yang,Qianqian Guo,Qisheng Wang,Qing Wang,Guanbin Wen,Bin Zhang,Yanli Nie
Graphical Using macadamia nut shell from Yunnan as raw material to prepare antibacterial material can save resources. Combining NiO with AC, adding Bi and Fe to optimize antimicrobial properties and magnetic properties.A kind of antibacterial, adsorption-degradable, recyclable and reusable material was constructed.The composite materials show a good prospect in the practical application of water treatment. Although inorganic antibacterial materials that use photocatalytic technology are widely used to inhibit bacterial growth in water bodies, the external light environment limits the efficient utilization of photocatalytic antibacterial materials. The antibacterial materials are usually in powder form and are not conducive to recycling and reuse, limiting their development in practical applications. The main antibacterial ingredient (nickel oxide) was combined with Macadamia nutshell activated carbon (AC) to maintain efficient contact between bacteria and antibacterial active ingredients to apply the material for water treatment. First, different activators (H 3 PO 4 , ZnCl 2 , and KOH) were used to prepare activated carbon (AC) from Macadamia nutshells. Among the three activators, the AC prepared with H 3 PO 4 exhibited the largest specific surface area with well-dispersed pores. Then, Bi and Fe were doped to AC-NiO to improve their antibacterial and magnetic properties. After doping, the antibacterial rate increased to 95% with significantly improved magnetic properties. Moreover, AC-NiO/Bi and AC-NiO/Fe exhibited three antibacterial mechanisms: physical damage, ionic dissolution, and oxidative stress. Finally, the antibacterial test was performed on real water samples from Dianchi Lake in China. Results suggested that AC-NiO/Bi and AC-NiO/Fe could destroy microorganisms in river water samples. The material showed significant adsorption and degradation efficiency for malachite green, methylene blue, and methyl orange dyes. Since the composite material possessed excellent magnetic separation performance, it was easily recovered after use, effectively avoiding secondary pollution while reducing the material cost in practical applications.
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高影响因子
Matter
·
2022
·
IF 19.967
Zhimin An,Yiping Li,Xiaoguang Luo,Yixing Huang,Rubing Zhang,Daining Fang
A multifunctional stealth technology compatible with infrared and radar is one of the most feasible ways to improve the survival of military equipment under high-temperature conditions. However, it is difficult to effectively integrate multiple functions into one material owing to the contradictory stealth mechanisms of infrared and radar. Herein, the near-room-temperature integrated preparation of a hierarchical metastructure with high-temperature resistance, broadband microwave absorption, and infrared stealth is realized by combining topological optimization of metastructure and a papermaking method. The tailored metastructure exhibits an effective bandwidth and absorption peak of 3.1 GHz and −25.9 dB at 1,000°C. The excellent thermal insulation allows the metastructure to achieve infrared stealth, which can reduce the radiation temperature of an object from 1,200°C to 340°C. The new technology paves the way for the design and preparation of a radar-infrared bi-stealth metastructure applied to high temperature.
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高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Xianquan Li,Jifeng Pang,Yujia Zhao,Lin Li,Wenguang Yu,Feifei Xu,Yang Su,Xiaofeng Yang,Wenhao Luo,Mingyuan Zheng
The catalytic synthesis of 1,3-butadiene (1,3-BD) from bio-based ethanol offers an alternative and sustainable process beyond petroleum. However, the intrinsic active sites and corresponding mechanism of 1,3-BD formation have not been fully elucidated yet. By correlating systematic characterization results with catalytic performance, the open Zr species, i.e., Zr(OH)(OSi) 3 moieties, were identified as the active site over the Zr/MFI-BM catalysts for the catalytic transformation of ethanol-acetaldehyde into 1,3-BD. In conjunction with controlled experiments and theory calculations, ethanol and acetaldehyde are proposed to synergistically co-adsorb on the Zr(OH)(OSi) 3 species in a bi-molecular mode, which assists the acetaldehyde condensation and accelerates the critical Meerwein-Ponndorf-Verley-Oppenauer reduction, and accordingly promotes 1,3-BD formation. These findings will stimulate the search towards new metal-zeolite combinations for efficient production of value-added 1,3-BD via biomass-derived ethanol and beyond.
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高影响因子
Journal of Magnesium and Alloys
·
2023
·
IF 17.6
Junjun Wang,Ruohan Yu,Jianxiang Wang,Juncai Long,Fan Qiao,Lei Zhang,Guanjie He,Qinyou An,Liqiang Mai
Bismuth has garnered significant interest as an anode material for magnesium batteries (MBs) because of its high volumetric specific capacity and low working potential. Nonetheless, the limited cycling performance (≤100 cycles) limits the practical application of Bi as anode for MBs. Therefore, the improvement of Bi cycling performance is of great significance to the development of MBs and is also full of challenges. Here, Bi nanoparticles encapsulated in nitrogen-doped carbon with single-atom Bi embedded (Bi@NC) are prepared and reported as an anode material for MBs. Bi@NC demonstrates impressive performance, with a high discharge capacity of 347.5 mAh g −1 and good rate capability (206.4 mAh g −1 @500 mA g −1 ) in a fluoride alkyl magnesium salt electrolyte. In addition, Bi@NC exhibits exceptional long-term stability, enduring 400 cycles at 500 mA g −1 . To the best of our knowledge, among reported Bi and Bi-based compounds for MBs, Bi@NC exhibits the longest cycle life in this work. The magnesium storage mechanism of Bi@NC is deeply studied through X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. This work provides some guidance for further improving the cycling performance of other alloy anodes in MBs.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Chunhui Wu,Qingwei Ping,Xueru Sheng,Na Li,Bing Wang,Jian Zhang
During the reprocessing of irradiated nuclear fuel, radioactive iodine vapor—a hazardous substance threatening environmental safety and human health—is released in substantial quantities, creating an urgent need for adsorbents with high-efficiency iodine trapping capabilities. This study synthesizes BiOBr aggregates via hydrothermal method and loads them onto a three-dimensional (3D) porous aerogel, which is composed of crosslinked polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA) (denoted as Bi@PVP/PVA). Compared with Bi@PVP and Bi@PVA, Bi@PVP/PVA shows significantly enhanced iodine adsorption performance: Bi@PVP/PVA-3, featuring a well-developed 3D porous network with optimized pore structure, achieves an exceptional iodine trapping capacity of 2482.2 mg/g at 85 °C, outperforming the single-polymer-supported counterparts. Characterizations confirm that crosslinking between PVP and PVA constructs a macroporous framework, which not only provides abundant sites for uniform loading of BiOBr aggregates but also facilitates iodine diffusion. Kinetic model analysis reveals the dual adsorption mechanism: the PVP/PVA porous network enables rapid trapping of iodine vapor, while chemical reactions between BiOBr and iodine ensure its firm immobilization. This synergistic effect of the carrier’s porous structure and the loaded BiOBr endows Bi@PVP/PVA aerogels with superior iodine treatment efficiency, highlighting their practical value in iodine capture during nuclear fuel reprocessing.
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高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2015
·
IF 4.169
Lulu Shangguan,Lingyi Zhang,Zhichao Xiong,Jun Ren,Runsheng Zhang,Fangyuan Gao,Weibing Zhang
The bottom-up strategy of proteomic profiling study based on mass spectrometer (MS) has drawn high attention. However, conventional solution-based digestion could not satisfy the demands of highly efficient and complete high throughput proteolysis of complex samples. We proposed a novel bi-enzymatic reactor by immobilizing two different enzymes (trypsin/chymotrypsin) onto a mixed support of hybrid organic–inorganic monolith with SBA-15 nanoparticles embedded. Typsin and chymotrypsin were crossly immobilized onto the mixed support by covalent bonding onto the monolith with glutaraldehyde as bridge reagent and chelation via copper ion onto the nanoparticles, respectively. Compared with single enzymatic reactors, the bi-enzymatic reactor improved the overall functional analysis of membrane proteins of rat liver by doubling the number of identified peptides (from 1184/1010 with trypsin/chymotrypsin enzymatic reactors to 2891 with bi-enzymatic reactor), which led to more proteins identified with deep coverage (from 452/336 to 620); the efficiency of the bi-enzymatic reactor is also better than that of solution-based tandem digestion, greatly shorting the digestion time from 24 h to 50 s. Moreover, more transmembrane proteins were identified by bi-enzymatic reactor (106) compared with solution-based tandem digestion (95) with the same two enzymes and enzymatic reactors with single enzyme immobilized (75 with trypsin and 66 with chymotrypsin). The proteolytic characteristics of the bi-enzymatic reactors were evaluated by applying them to digestion of rat liver proteins. The reactors showed good digestion capability for proteins with different hydrophobicity and molecular weight.
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PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Hongge Cao,Yuhang Wu,Ruicai Gao,Peijie He,Qiang Wu,Jixiang Cui,Longyan Gu,Tuo Cai,Ping Peng,Yan Lei,Yuan Lin,Zhi Zheng
Ag 2 S colloidal quantum dots (CQDs) are promising candidates for solution-processable and eco-friendly solar cell applications, but the power conversion efficiency is still far from its theoretical value (∼30 %). Where the migration of Ag ions in Ag 2 S CQDs may be responsible for this. In this work, to suppress the migration of Ag ions and further enhance the photoelectric properties of the Ag 2 S CQDs, Bi elements have been doped into the Ag 2 S CQDs via a facile route at low temperature. Without heat, the Bi content in the resulting Bi-doped Ag 2 S CQDs can be adjusted by adding raw BiI 3 in the reaction system. The photoelectric responsivity of Bi-doped Ag 2 S CQDs is about 6 times greater than that of the undoped Ag 2 S CQDs. Finally, solid-state solar cells have been constructed, and 1.5 % power conversion efficiency has been obtained. Current work may provide an avenue to produce high-quality Ag 2 S CQD-based photoelectric materials.
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高影响因子
CARBON
·
2025
·
IF 11.6
Tianyu Zhang,Yang Hong,Xiaolei Shi,Hongchao Zheng,Jingyang Li,Wenjing Wei,Kai Cui,Yang Li,Wei Qin,Xiaohong Wu
Developing lightweight packaging materials with high radiation protection efficiency for MOSFET radiation hardening is highly significant for enhancing the radiation resistance of MOSFETs in space radiation environments. This work presented lightweight Bi-GdF 3 /Ti 3 C 2 T x aerogel (BGTA) with high electron radiation protection efficiency (RPE) through self-assembly and directional freezing. Subsequently, a radiation hardened MOSFET was obtained by packaging with BGTA. The resulting BGTA packaging material demonstrates excellent electron protection efficiency (92.23 %) compared to conventional Al packaging materials (23.80 %) at the same areal density. Meanwhile, the BGTA-packed MOSFET shows outstanding radiation resistance, exhibiting a much smaller negative threshold voltage drift value of 0.10 V compared to the Al-packed MOSFET (1.17 V). The electron shielding mechanism of BGTA was analyzed and elucidated by FASTRAD simulation on a micro scale. Due to the synergistic effect of the honeycomb aerogel structure and Bi/GdF 3 functional filler in BGTA aerogel, the incident electrons are effectively attenuated, thereby reducing radiation damage to the SiO 2 layer of the MOSFET and improving the radiation resistance of the MOSFET. Theoretical calculation results substantiate that the BGTA-packed MOSFET exhibits lower threshold voltage shifts and trapped charges. This work presents a lightweight and highly efficient MXene aerogel packaging material for MOSFET radiation hardening.
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2025
·
IF 4.7
Jingbiao Ge,Huihui Xue,Yang Yang,Sujuan Zhang,Xiuzhen Zheng,Shifu Chen
To optimize the performance of photocatalytic H 2 production, various effective strategies have been developed to design highly efficient photocatalysts, including morphology control, synergistic reaction design, and utilization of photogenerated charge carriers (PCCs). In this study, a highly efficient Bi-Bi 2 WO 6 /Zn 0.5 Cd 0.5 S (BBWO/ZCS) composite was synthesized by embedding Zn 0.5 Cd 0.5 S (ZCS) nanospheres into Bi-Bi 2 WO 6 (BBWO) microsheets through electrostatic self-assembly method. Although BBWO show poor activity in H 2 generation, it largely improves the performance of ZCS under visible light illumination. When the mass of BBWO is 3 % in the composite, BBWO/ZCS exhibited the highest H 2 production rate (28.0 mmol g −1 h −1 ), much higher than that of pure ZCS. Meanwhile, its apparent quantum efficiency (AQE) is high to 8.45 % at 400 nm. The design of the BBWO/ZCS composite not only improves the migration and utilization efficiency of PCCs, but also offers valuable theoretical insights and experimental references for the development of highly efficient photocatalysts.
研究领域:
材料科学
·
光催化
·
可再生能源
·
纳米材料
·
环境科学
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高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Weihao Xia,Haonan Wang,Fengjun Ji,Tiansheng Bai,Xuan Zhou,Jinru Huang,Jingyu Lu,Yuhan Wu,Deping Li,Lijie Ci
Antimony (Sb)-based anode materials suffer from poor cycling stability in potassium-ion batteries (PIBs) due to severe volume changes during charge/discharge processes, which limit their practical application. To address this challenge, a dual strategy of alloying and carbon coating was employed, resulting in the successful synthesis of composite anodes comprising porous carbon-coated SbBi nanoalloys with tunable Sb/Bi atomic ratios. This approach significantly enhances the structural stability and electrochemical performance of Sb-based anodes. The optimized Sb 0.5 Bi 0.5 @C anode exhibits exceptional cycling stability, delivering a high reversible capacity of 316.0 mA h g −1 after 600 cycles at 0.2 C, and remarkable rate capability (230.0 mA h g −1 at 5.0 C). Moreover, it demonstrates improved thermal stability at 45°C, retaining a capacity of 328.6 mA h g −1 after 1000 cycles at 2.0 C. The potassium storage mechanism is elucidated through kinetic analysis and theoretical calculations. Furthermore, full-cell configurations were assembled and evaluated, demonstrating promising practical application potential with similarly outstanding electrochemical performance.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
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高影响因子
GREEN CHEMISTRY
·
2018
·Vol. 20
·期 11
·2588-2595
·
IF 8.586
Da Yang,Huan Liu,Dong-Liang Wang,Zhoujie Luo,Yong Lu,Fei Xia,Ye Liu
A bi-functional ligand (L1) containing a diphosphino fragment and sulfonic acid group (–SO3H) enabled PdCl2(MeCN)2 to efficiently catalyze the tandem bis-alkoxycarbonylation of terminal alkynes to produce aryl-/alkyl-substituted succinate (α,ω-diesters). It was found that the –SO3H incorporated in L1 indispensably assisted the Pd-catalyst in accomplishing this tandem reaction via intramolecular synergic effects. Co-catalysis over the L1-based Pd-catalyst was not due to the physical mixture of Xantphos and MeSO3H. In situ FTIR analysis verified that the formation and stability of Pd–H active species were facilitated by the presence of L1. The formation of stabilized diacylpalladium intermediate (F) was the critical driving force for the second-step methoxycarbonylation. DFT calculation was carried out to optimize the geometric structure of F, which indicated that the developed intramolecular O⋯H hydrogen bonds were an important structural feature to stabilize F. In addition, the L1-based Pd-catalyst could be recycled successfully for at least 3 runs in the ionic liquid [Bmim]NTf2 without obvious activity loss and detectable metal leaching.
研究领域:
有机化学
·
催化化学
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高影响因子
危险品化学品经营许可证（带存储）