INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Linyun Mou,Ya Lu,Jiale Ma,Shuwei Shu,Jianlong Li,Ganpeng Li
In response to the rapid quality degradation of peaches due to post-harvest decay, this study developed a composite film for preservation. Two primary pathogens responsible for peach decay, Aspergillus flavus and Talaromyces funiculosus , were identified. Molecular docking attributed to the main binding position of citral and geraniol's interactions with type I polyketide synthase on their antifungal effects, as well as the caffeic acid with its tyrosinase on antioxidant efficacy. β -CD-MOFs were synthesized via vapor diffusion, demonstrating exceptional spatial loading via SEM. CEOs (citral + geraniol) encapsulated in β -CD-MOFs were incorporated into a chitosan/pullulan matrix, yielding a film with 260.27 % fracture tensile strain, significantly ( P < 0.001) outperforming pure chitosan (21.87 %), possessing excellent mechanical properties, and the improvement in the water solubility of the film facilitates the release of active compounds. The utilization of a compositel film on peaches has shown significant efficacy in controlling decay index ( P < 0.05), weight loss ( P < 0.05), firmness ( P < 0.05) and production of malondialdehyde ( P < 0.05). Compared to untreated controls, the treated peaches exhibited an extended shelf life of 2 days, highlighting the superior preservation capabilities of the film. Hence, the film presents a promising solution for fruit preservation.
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RENEWABLE ENERGY
·
2025
·
IF 9.1
Fenglong Chen,Lingxin Meng,Jingmei Xu,Hongqi Liang,Kuirong Feng,Tian Lan,Jiayin Wang,Qingyuan Shi
The sulfonated poly(arylene ether ketone sulfone)s which contains fluorenyl groups (F-SPAEKS) as proton exchange membranes (PEMs) matrix is prepared. UiO-66-NH 2 -PO 4 H 2 (PUIN) is synthesized based on UiO-66-NH 2 as a template for immobilizing phosphate groups onto MOFs by chemical bonding via Schiff base reaction. UiO-66-SO 3 H-PO 4 H 2 (SPUIN) is prepared via ring-opening of 1,3-propanesulfonolactone, where -SO 3 H is introduced at the -NH 2 site of PUIN. The hybridized PEMs (FSSPU-X) are obtained by adding SPUIN as fillers into F-SPAEKS polymers. From all prepared PEMs, FSSPU-7 which means the weight ratio of SPUIN is 7% shows the best performances in comprehensive aspects. The H + conductivity of FSSPU-7 is enhanced to 247.38 mS cm -1 and the peak power density is 1140 mW cm -2 with 0.48 mg cm -2 Pt/C loading. At the same time, the swelling ratio of FSSPU-7 remains below 17%. Besides, FSSPU-7 has a maximum tensile strength up to 32.37 MPa. And the proton conductivity of FSSPU-7 is consistently maintained at about 240 mS cm -1 after 144 hours of long-term stability test. Therefore, the preparation of PEMs with a high level of performance is expected by introducing phosphoric acid and sulfonic acid bi-functionalized UiO-66 into F-SPAEKS.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Lei Zhang,Tian Ai,Nan Zhang
Minocycline (MNC), as a second-generation semi-synthetic derivative of tetracycline, poses a potential carcinogenic threat to organisms in water, therefore high efficient removal of MNC is becoming a crucial key for water quality safety. This study has been successfully synthesized Ag/Ce bimetallic–doped MOF materials with diverse morphological characteristics by using microwave digestion and solvothermal methods, and it was demonstrated a significant adsorption potential in MNC from aqueous solutions. The characterization results were revealed that Ce exhibits oxygen vacancy enrichment as the central metal in MOFs, while Ag was distributed on carbon framework in the form of Ag 0 NPs, both of morphological features were provided more active sites for adsorption. The Ag/Ce–MOFs was achieved 98.26 % exceptional MNC adsorption efficiency at pH 9, which was followed a multilayer exothermic chemisorption mechanism. The results were shown that the maximum adsorption capacity of Ag/Ce-MOFs was 476.2 mg/g in Langmuir model, which was much more substantially surpassed than Ce–MOFs. In addition, the adsorption process was primarily mediated through hydrogen bonding, ligand interactions and amidation reactions. Furthermore, the Ag/Ce–MOFs exhibited the excellent regeneration performance and broad applicability, which was shown remarkable adsorption potential in removing various other pharmaceutical contaminants in water. In summarization, the synthesized Ag/Ce–MOFs by microwave digestion and solvothermal technology, were demonstrated the board promising prospects in efficient MNC removal in water treatment applications.
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COLLOIDS AND SURFACES B-BIOINTERFACES
·
2025
·
IF 5.6
Zhenyu Wang,Jianxiang Li,Sihan Li,Diwei Li,Yunyi Zhao,Ling Xu,Gang Liu,Zhaoqiong Chen,Xiaoming Luo
Wound infection represents a prevalent and pressing clinical challenge, resulting in delayed wound healing and severe complications. In this study, a novel wound dressing was fabricated through a combination of electrospinning and acid etching techniques. First, nanofibers were fabricated by blending electrospun polyacrylonitrile/Polyvinylpyrrolidone (PAN/PVP) polymers with copper-based metal organic frameworks (Cu-MOFs). Subsequently, tannic acid was employed to etch the surface sites of Cu-MOFs on the fibers. The obtained nanofibers exhibited a typical porous structure, superior water absorption and gas permeability, with the average water vapor transmission rate was 2170.6 gm -2 day -1 . Additionally, the release behavior of copper ions can be modulated by altering the mass ratio of PVP to PAN, the amount of Cu-MOFs and the use of tannic acid. In vitro antibacterial assays revealed that the antibacterial efficacy of nanofibers increased with the addition of Cu-MOFs, after 48 hours of treatment, the inhibition rates of the nanofibers against E. coli and S. aureus reached over 79.5 % and 90 %, respectively. In vivo experiments demonstrated that these nanofibers alleviated wound inflammation and promoted collagen and angiogenesis, exhibition superior anti-inflammatory and wound-healing effects. The biosafety tests indicated that the nanofibers loaded with 1 % and 3 % Cu-MOFs exhibited good biocompatibility, while the nanofibers loaded with 5 % Cu-MOFs showed slight cytotoxicity. This study provides a novel strategy for the design and fabrication of advanced wound dressings in biomedical applications.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
·
IF 4.6
Mu-Lan Yao,Si-Lu Wang,Si-Mian Liu,Xiao Wang,Ji-Jiang Wang,Xiang-Yang Hou
This study presents a novel method for simultaneous identification of Hg 2+ , In 3+ , and Zr 4+ ions in solution using a double-emission fluorescence MOFs composite (EY@MOF-1) as a probe. The new pure zinc-based metal-organic framework ({[Zn 3 (TPPO) 2 (1,4-IYI) 2 ]·3H 2 O} n , MOFs-1, Tri( p - carboxyphenyl) phosphorus oxide = H 3 TPPO,1-(4-imidazol-1-ylphenyl)-imidazole = 1,4-iyi, Eosin Y = EY) produces strong single emission fluorescence at 364 nm when excited at 320 nm. Utilizing its unique fluorescent properties, MOFs-1 can effectively identify Hg 2+ , In 3+ , and Zr 4+ ions in solution. However, the fluorescence quenching effect caused by the three ions is identical, making it impossible to accurately determine which metal is the identified ion. To address this issue, a post-modification synthesis strategy was used to construct EY doped dual-emission fluorescent material EY@MOF-1. As expected, EY@MOF-1 can effectively identify and differentiate Hg 2+ , In 3+ , and Zr 4+ ions in solution based on their different fluorescence quenching changes. The probe has a limit of detection of 0.18 μM (Zr4+), 0.20 μM (In3+), and 0.13 μM (Hg2+) within a certain concentration range. The mechanism of fluorescence recognition was investigated in depth. This double emission fluorescence probe, with its high sensitivity and selectivity, is the first of its kind and provides a simple and reliable method for effective identification of Hg 2+ , In 3+ , and Zr 4+ . It has potential applications in environmental monitoring and is a valuable tool for ion identification.
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JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2025
·
IF 4.9
Jing Li,Ying-Xia Ma,Shi-Fan Chang,Jia-Qi Liu,Fei Wang,Fen Ran,Pei-Qing La
Traditional metal-organic frameworks (MOFs), typically adopting a single-metal-single-ligand combination mode, and generally suffer from issues such as poor conductivity, low electron mobility, and structural instability, which significantly restrict the practical performance as electrode materials. To overcome the limitations, this study proposed a synergistic strategy of dual ligands and heterogeneous metal ions doping. In this work, firstly, adopting a dual-ligand strategy, 2-amino-5-mercapto-1,3, 4-thiadiazole (EAMTD) with planar five-membered heterocyclic ligand and terephthalic acid (PTA) with linear carboxylic acid ligand coordinated with Ni ions to synthesize a novel Ni-MOF-EAMTD/PTA. The integration of dual-ligand molecules with different spatial configurations facilitates the Ni-MOF-EAMTD/PTA to form a three-dimensional cross-linked network porous structure and a high specific surface area (311.89 m 2 g −1 ), which could promote the rapid transport of charge carriers. Meanwhile, heteroatoms in the ligands and the π-π stacking effect could enhance the electrical conductivity. After testing, the Ni-MOF-EAMTD/PTA exhibited an excellent specific capacity of 884 C g −1 (3.54 C cm −2 ) at 1 A g −1 . Subsequently, to further optimize the electronic structure and improve the electrochemical performance, heterogeneous metal ion doping strategy was employed to construct Ni/Co-MOF-EAMTD/PTA. The specific capacity of Ni/Co-MOF-EAMTD/PTA increased to 1032 C g −1 at 1 A g −1 current density. The asymmetric supercapacitor (ASC) assembled by Ni/Co-MOF-EAMTD/PTA and activated carbon delivered an energy density of 61.1 Wh kg −1 at a power density of 900 W kg −1 . More significantly, the ASC device demonstrated excellent cycling stability and unique capacity recovery characteristics, thereby endowing the device with a long service life and broad application potential. Overall, the strategy of dual-ligand and heterometallic doping in this work could provide a feasible approach for development of high-performance energy storage devices.
研究领域:
材料科学
·
电化学
·
能量存储与转换
·
纳米材料
·
超级电容器
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Small
·
2025
·
IF 12.1
Fukang Feng,Xiaoyu Zhang,Xinrui Han,Guangyu Wu,Weinan Xing
The efficiency of peroxymonosulfate (PMS) activation in photocatalytic processes critically depends on the regulation of electron transfer from generation to utilization. Herein, a holistic electron transfer pathway is constructed within a metal–organic frameworks (MOFs)-derived Cu-Cu x O/TiO 2 composite to achieve superior PMS activation. The incorporated Cu species serve as dynamic redox mediators, enabling an efficient non-photoinduced electron transfer pathway via Cu 0 &Cu n+ cycling. Simultaneously, the Cu-induced bandgap narrowing and abundant oxygen vacancies significantly enhance visible-light absorption and facilitate the rapid trapping of photogenerated electrons. This synergy establishes a continuous and highly efficient electron transfer from photoexcitation to catalytic reaction. The optimized catalyst Cu-Cu x O/TiO 2 -2 delivers an exceptional tetracycline hydrochloride (TC) degradation rate constant of 38.26 × 10 −3 min −1 , representing a 2.04-fold enhancement over pristine TiO 2 (18.74 × 10 −3 min −1 ). Mechanistic studies confirm that the radical ( • OH/ • SO 4 − ) and non-radical (h⁺) pathways function synergistically in the Cu-Cu x O/TiO 2 -2/PMS system, collectively enabling highly efficient TC degradation. Three plausible degradation routes are proposed based on intermediates identification and density functional theory (DFT) calculations. Furthermore, economic analysis is conducted to transition from mechanistic insight to practical value, assessing the commercial potential of the Cu-Cu x O/TiO 2 -2/PMS photodegradation system. This work provides valuable insights into the design of efficient composite catalysts through regulated electron transfer via dynamic redox cycling coupled with oxygen vacancy engineering.
研究领域:
环境科学
·
材料化学
·
光催化
·
废水处理
·
纳米材料
·
氧化还原化学
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APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Xiaolei Wu,Hanqing Zhao,Junmin Xu,Zhuangfei Zhang,Weixia Sheng,Shuge Dai,Tingting Xu,Sen Zhang,Xinchang Wang,Ye Wang,Xinjian Li
Searching for low-cost, high capacity, stable and well-designed cathode materials with good rate capability and long-life cycling performances is our long-term goal for rechargeable lithium/sodium batteries . In this work, a simple and scalable strategy is developed to synthesize metal-organic frameworks (MOFs) derived Fe 7 S 8 /C composites by sulfurizing Fe-MIL-88A MOFs. The synthesized Fe 7 S 8 /C composites are of rod-like morphology with the well-dispersed Fe 7 S 8 nanoparticles in porous carbon matrix. Such a structure could offer distinct advantages for Fe 7 S 8 -based electrode materials for both lithium and sodium batteries . When evaluated as a cathode material for rechargeable Fe 7 S 8 /Li batteries , the Fe 7 S 8 /C composites exhibit a long and flat discharge plateau around 1.5 V and delivers a high specific discharge capacity of 473 mA h g −1 at 0.1 A g −1 after 100 cycles with excellent rate capability and long-life cycling performance at high current density (~301 mA h g −1 after 1000 cycles at 1.0 A g −1 ). Moreover, the Fe 7 S 8 /C composites could also exhibit high specific capacities, good rate performance and high cycling stability as an anode material for sodium ion batteries. Our findings demonstrate that Fe 7 S 8 /C composites with rod-like morphology are promising electrode materials for lithium/sodium batteries.
研究领域:
材料科学
·
电化学
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NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 30
·14169-14176
·
IF 3.3
Guohua Chen,Liying Wang,Yunfei Liu,Xin Miao,Zhenzhu Cao,Yongfeng Zhang
Cobalt-based metal–organic frameworks (Co-MOFs) supported by pyromellitic acid (PMA) were synthesized using a facile one-pot solvothermal method. Morphologies and sizes were tuned by assembly of Co-MOFs in different solvent ratios. Multilayered derivatives were obtained by calcination of Co-MOFs at 350 °C under argon and used as anode material for lithium-ion batteries (LIBs), showing a high reversible specific capacity (1116.7 mA h g−1 after 100 cycles at a current density of 200 mA g−1). The excellent electrochemical performance may be attributed to the specific structure formed during calcination, that is to say, the inner layer of the material retained the porous MOFs, and a small amount of oxide and carbon layers wrapped around the outer layer of the MOFs.
研究领域:
材料科学
·
能源存储
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Foods
·
2026
·Vol. 15
·期 5
·829
·
IF 6
Jinqiong Xu,Xinyu Yu,Jianbo Liu,Qinglin Sheng
Pseudomonas aeruginosais an important waterborne pathogen that is harmful to food safety and human health. Therefore, the detection ofPseudomonas aeruginosahas become an essential item in food sampling. This article constructs a fluorescent aptamer sensor based on Tb-MOFs, using Tb-MOFs as the fluorescence signal source, colloidal gold (AuNPs) as the signal conversion switch, and aptamers as the target recognition element, to establish a quantitative detection method forPseudomonas aeruginosa. The constructed sensor exhibits a good linear relationship within the concentration range ofPseudomonas aeruginosafrom 1 to 106CFU/mL, with a detection limit of 0.63 CFU/mL. Moreover, the sensor was also applied to the detection ofPseudomonas aeruginosain actual samples of bottled drinking water and orange juice. The fluorescent aptasensor based on Tb-MOFs provides a rapid and sensitive new sensing method for the detection ofPseudomonas aeruginosain food.
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ANALYTICAL CHEMISTRY
·
2026
·
IF 6.7
Yi Yang,Licheng Yu,Haiyang Wang,Liang He,Pengli Bai,Xiwen He,Langxing Chen,Yukui Zhang
Natural cell systems with multiple isolated compartments possess controllable signal transduction pathways, which can segregate a series of complex substances and confine them from each other to allow for feedback-driven reactions. By biomimicking the ingenuity of cell systems, we herein designed spatially compact metal–organic frameworks (MOFs) as a hierarchical host for complex substances at isolated locations for the development of reaction pathway-regulated glycoprotein assay. The well-defined zeolitic imidazolate framework-8 (ZIF-8) matrices were fabricated via epitaxial growth to organize the multishelled integration of multiple guest substances including redox reactant substrates (i.e., resazurin and amplex red) and Pt-shelled Au (AuPt) entities. In addition, the micropore nature and enclosed space of the ZIF-8 matrix can prohibit the surpassed contact between fluorogenic substrates and catalytic AuPt converters, inherently, while the immediate signal generator pattern can be harvested through textural collapse of the ZIF-8 skeleton in a controllable manner. Our proposed glycoprotein assay can be conducted with on-demand redox reactions for signal generators: a reductive N-deoxygenation of resazurin and an oxidative N-deacetylation of amplex red, respectively. Due to the distinct catalytic behavior of AuPt converters involved in the fluorogenic redox reactions, the detection limit of the reaction pathway-regulated glycoprotein assay can reach 14.27 pM for the reductive N-deoxygenation reaction and 71.63 pM for the oxidative N-deacetylation reaction, respectively. Collectively, our proposed method may offer an innovative inspiration of reaction pathway-regulated glycoprotein assay, and it can also be adapted for rational substitution of substrate molecules to broaden its signal reflections in versatile glycoprotein analysis.
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ELECTROANALYSIS
·
2023
·Vol. 36
·期 4
·e202300371
·
IF 3
Wenjing Liu,Sumin Xu,Jinjin Zhang,Qi Wang,Jianying Qu
In this work, manganese-based metal-organic frameworks (MnBDC) were synthesized by solvothermal method and physically mixed with pre-prepared graphene oxide (GO) to obtain GO/MnBDC, which were calcined to give MnO@C composite coated with reduced graphene oxide (rGO) marked as rGO/MnO@C. The materials were characterized by SEM, XRD, FTIR and XPS. Based on this composite, a novel sensor was constructed on a glassy carbon substrate, which exhibited good electrocatalytic activities to the redox reactions of catechol (CC) and hydroquinone (HQ), enabling simultaneous detection of both analytes. Under optimized conditions, the electrochemical sensor demonstrated a linear range of 0.50–90.00 μM for both CC and HQ detection, with respective detection limits of 0.05 μM and 0.03 μM. Moreover, the sensor exhibited excellent sensitivity, selectivity and accuracy for detecting CC and HQ simultaneous in real samples.
研究领域:
材料科学
·
分析化学
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危险品化学品经营许可证（带存储）