DYES AND PIGMENTS
·
2025
·
IF 4.2
Yuying Fu,Haibing Han,Lin Li,Jinjian Liu
Thiazolo[5,4- d ]thiazole extended viologen (2,5-bis(pyridinium-4-yl)thiazolo[5,4- d ]thiazole, Py 2 TTz) has recently been identified as a very efficient fluorophore, in contrast with the relatively weak fluorescence of the traditional viologens. Herein, we developed a novel thiazolothiazole extended viologen derivative (denoted as 3-L ) by incorporating carboxybenzyl into Py 2 TTz. On this basis, a Zn-based metal-organic framework (Zn-MOF) {[Zn(3-L) 0.5 (TPDC)(H 2 O)]·H 2 O} n (denoted as Zn-L ) has been synthesized derived from 3-L under solvothermal conditions. Both 3-L and Zn-L show excellent photochromism and ammonia vapochromism, probably due to the formation of viologen radicals induced by electron transfer under UV and NH 3 stimuli. Besides, both compounds exhibit reversible modulation of fluorescence during the coloration-decoloration process. Based on photochromism, inkless erasable printing can prepare the desired erasable pattern by UV irradiation.
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BIOMEDICINE & PHARMACOTHERAPY
·
2025
·
IF 7.5
Yuna Tong,Xiuxiu Li,Yuxuan Zhu,Xiaohui Liao,Ling Zhang
The critical pathogenic factors in the initiation and progression of diabetic nephropathy (DN) include hyperglycemia, oxidative stress, and inflammatory responses. Current therapeutic interventions for DN remain constrained by the intricate pathophysiological mechanisms that are involved in the dysregulations of multiple renal signaling pathways. Zinc (Zn) is an essential trace element that participates in diverse physiological processes, exhibits protective effects against oxidative stress-induced apoptosis, and plays a pivotal role in insulin biosynthesis and secretion. In our exploratory study, we aimed to develop targeted intervention in diabetes-associated DN pathogenesis by engineering metformin (MET)-encapsulated Zn-MOF nanoparticles conjugated with a renal-targeting protein (KTP-Zn-MOF/MET). In vivo imaging analyses revealed that renal accumulation of these multifunctional nanoparticles was significantly enhanced in BALB/c nude mice. The nephroprotective efficacy was preliminary explored in a rat model with renal injury induced using streptozotocin. Intravenous administration of KTP-Zn-MOF/MET ameliorated multiple DN-related pathological manifestations, including renal functional impairment, cellular apoptosis, lipid peroxidation, and oxidative stress. Our findings indicated that KTP-Zn-MOF/MET is a novel therapeutic strategy for precise renal targeting and multi-target intervention in DN management, with significant potential for clinical translation.
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JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
Feng Li,Ying Huang,Tong-Wei Zhang,Wei Lu,Chuan-Ze Zhong,Lian-Sheng Cui,Peng-Fei Yao
A Zn-based metal-organic framework (Zn-MOF) with a two-dimensional structure was successfully constructed via a solvothermal method. X-ray single-crystal diffraction analysis shows that Zn-MOF crystallizes in the monoclinic system with the P 2₁/ c space group. The Zn²⁺ ions exhibit a four-coordinated tetrahedral configuration, forming a uninodal 4-connected tetragonal two-dimensional framework with the point symbol {4 ⁴ ·6 ² }. First-principles calculations reveal that Zn-MOF is an indirect band-gap compound with a band gap of 2.64 eV, which is mainly determined by the bpydb²⁻ anionic units. Thermogravimetric (TG) analysis indicates that Zn-MOF undergoes major weight loss in the range of 395–490°C. Therefore, ZnO with different concentrations of oxygen vacancies (OVs-ZnO) was prepared by mixing Zn-MOF with different masses of glucose and calcining the mixture at 500°C. X-ray diffraction (XRD) and transmission electron microscopy (TEM) results confirm that the main component of the calcined samples is ZnO. Electron paramagnetic resonance (EPR) analysis shows the presence of oxygen vacancies (OVs) on the surface of the prepared ZnO samples. Ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS) analysis indicates that the band gap widths (E g ) of Zn-MOF and OVs-ZnO are 2.68 eV, 2.55 eV, 2.29 eV, 2.07 eV and 1.76 eV, respectively. Electrochemical impedance spectroscopy (EIS) and photocurrent (PCR) measurements demonstrate that OVs-ZnO (after calcination) is more favorable for the separation of photogenerated electron-hole pairs than Zn-MOF. Photocatalytic degradation experiments show that within 60 min, the photocatalytic degradation rate of TC by OVs-ZnO is significantly higher than that by Zn-MOF; in particular, the degradation rate of TC by OVs-ZnO-4 can reach over 90%. Radical trapping experiments reveal that h⁺, ·OH and ·O₂⁻ are all involved in the photocatalytic degradation process of TC, with ·OH being the key reactive species.
研究领域:
材料科学
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光催化
·
环境化学
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金属有机框架
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纳米材料
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
·
2026
·Vol. 37
·期 1
·42
·
IF 4.7
Xiaomei Ye,Shuzhen Lu,Hao Peng,Zhirong Huang,Chunyu Pan,Yayan Huang,Kangrui Yuan,Youfa Qin
Mesoporous metal-organic frameworks (MOFs) have the advantages of high specific surface area, tunable pore size, and favorable biocompatibility, making them promising candidates for drug delivery in cancer therapy. In this study, a series of mesoporous zinc-based MOF, constructed using cyclopentane dicarboxylic acid as the organic linker, was successfully synthesized via a surfactant-assisted solvothermal method. Surface characterization revealed that MOF-2 exhibited high surface area (1325 m 2 /g), pore volume (0.273 cm 3 /g), and average pore diameter (5.69 nm). UV-Vis analysis showed that MOF-2 demonstrated improved drug loading (18% w/w), encapsulation efficiency (86%), and cumulative release (96%), along with both pH-responsive degradation and drug release properties. Furthermore, cisplatin-loaded MOF-2 exhibited potent antitumor activity against A549 cells and effectively inhibited cell migration and invasion, while maintaining minimal cytotoxicity toward LO2 normal hepatic cells. These findings suggest MOF-2 as a promising nanocarrier for pH-responsive anticancer drug delivery.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
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IF 3.9
Jundi Xiong,Jian Yu,Yuan Wang,Shaojun Yuan
Carbon aerogels are emerging as promising functional materials; however, their application in adsorption and energy storage is hindered by the inherently low density of active sites. Herein, ZIF-8/N-doped alginate-derived carbon aerogels (ZSCA) were synthesized via in situ growth of ZIF-8 on freeze-dried alginate aerogel precursors and subsequent treatment of pyrolysis and chemical activation for high-performance CO2 capture and supercapacitor applications. In this strategy, ZIF-8 served as a structural template, alginate provided a biomass-derived carbon source, polyethylenimine (PEI) acted as a nitrogen dopant and a costructure director, and potassium citrate functioned as the activating agent. The optimized ZSCA-550-1 (pyrolyzed at 550 °C with an activator-to-precursor mass ratio of 1:1) showed a high specific surface area of 811.34 m2/g, a micropore volume of 0.31 cm3/g, and a nitrogen content of 8.77 wt %. At 273.15 and 298.15 K (1 bar), ZSCA-550-1 achieved excellent CO2 adsorption capacities of 5.96 and 4.40 mmol/g, respectively, outperforming both SA-550-1 (2.79 mmol/g) and ZPC-550-1 (3.20 mmol/g). It also showed high CO2/N2 selectivity (35.0) and retained 94% capacity after 10 adsorption–desorption cycles. As a supercapacitor electrode, ZSCA-650-1 delivered 214 F/g at 1 A/g, with 88.6% capacitance retention over 5000 charge–discharge cycles at 10 A/g. This study introduces a sustainable strategy for the design and engineering of biomass-derived carbon aerogels with dual functionality in CO2 capture and electrochemical energy storage.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Junhao Xie,Hao Wu,Jinqiu Tao,Xudong Liu,Yunbo Tong,Shuai Qi,Qianping Ran
The incorporation of self-healing technology into antifouling coatings is crucial for the extension of their service life and durability. However, the challenge lies in the insufficient coexistence of strength and toughness hinders their long-term serviceability. Here, this study proposes a cross-scale interfacial engineering strategy for self-healing antifouling coatings inspired by the multiscale microstructure of natural biomaterials The strategy involves the in-situ growth of antifouling zinc-based metal–organic frameworks (Zn-MOF) within a self-healing polymer network constructed by multiple hydrogen bonds. The synergistic cross-scale interfacial interactions between Zn-MOF and the polymer molecules, combined with the intrinsic antifouling properties of Zn-MOF, significantly enhance the strength, toughness to 27.48 MPa, 277.81 MJ/m 3 , and benefit improving antifouling performance. Moreover, the molecular integration of Zn 2+ -pyridine coordination optimizes the microphase structure of the polymer matrix and embeds the advantage of its fast damage response, thereby further enhancing the robustness, and reaching self-healing efficiency to 91.74 % at 40 °C for 24 h. Overall, the proposed strategy represents a viable approach for the fabrication of highly resilient and tough self-healing antifouling coatings.
研究领域:
材料科学
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表面工程
·
聚合物科学
·
仿生材料
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Jiaqi Liang,Junyi Zhang,Qinyi Zhang,Changyan Sun
Ethyl maltol (EM) is prohibited in natural foods and residues of lincomycin hydrochloride (LH) pose potential health risks. Therefore, the accurate detection of these two substances is crucial for safeguarding food safety. The synthesized Zn-MOF fluorescent probe could be used to detect EM and LH through “turn-on” responses with the low detection limits of 7.86 and 62.5 nM respectively. Moreover, the filter strips based on Zn-MOF can achieve visual detection of EM and LH. The detection mechanism is attributed to the donor-acceptor electron transfer and the weak interaction between the analytes and Zn-MOF. Furthermore, the Zn-MOF probe can be used for the detection of EM and LH in real samples such as Baijiu and milk. The recoveries are in the range of 95.89 %–103.3 %, which confirms its practical application and provides a new strategy for food safety detection.
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JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Yang Fan,Jiang Chongwen,Zhu Jundong
Biopolymer aerogels have shown broad prospects in efficient thermal management. However, their inherent flammability imposes limitations on practical utilization. In this study, a gelatin-based composite aerogel (Zn-MOF-DA/GA) was successfully prepared by dopamine-modified Zn-MOF nano-reinforcement and multiple crosslinking in gelatin solution. The Zn-MOF-DA component not only facilitated the uniform dispersion of MOF nanoparticles but also enhanced interfacial molecular interactions through multifunctional groups and intrinsic physical properties. The as-prepared aerogel with a hierarchical porous structure, low bulk density, and high mechanical strength exhibits excellent thermal insulation performance (33.02–37.62 mW·m⁻ 1 ·K⁻ 1 ) and anisotropic thermal properties. Moreover, the nano-porous Zn-MOF-DA significantly improved the flame retardancy of composite aerogel, reducing the peak heat release rate and total smoke release by 48% and 96%, respectively, compared to gelatin aerogel. The design strategy of multi-crosslinking and nano-reinforcement provides a broad prospect for sustainable aerogels in the field of thermal management and fire safety. Graphical abstract
研究领域:
材料科学
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高分子科学
·
消防安全工程
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热管理
·
可持续材料
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LANGMUIR
·
2025
·
IF 3.9
Yanrui Wang,Ting Yu,Qing Xue,Le Chen,Yue Chen,Zhonghua Sun,Junfeng Qian,Chang Guo,Vladimir Yu. Guskov,Zhi-Hui Zhang
In this study, a Zn-based MOF was synthesized via a solvothermal method, and a series of AG/Zn-MOF-X composite aerogels were subsequently engineered through the controlled incorporation of agar. Comprehensive evaluation revealed that the AG/Zn-MOF-0.8 composite achieved remarkable removal efficiencies of 65, 61, and 100% for Cr2O72–, CrO42–, and MnO4–, respectively, outperforming pristine Zn-MOF by 14, 3, and 1%. An analysis of the kinetics and isotherms provided insights into the adsorption mechanisms. Notably, under photocatalytic conditions, the composite exhibited superior degradation with removal rates of 79, 86, and 100% for the respective oxyanions. These findings highlight that tailored MOF modifications can significantly boost both adsorption and photocatalytic performance, offering new possibilities for advanced water purification technologies.
研究领域:
材料科学
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环境工程
·
纳米技术
·
化学工程
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Shiqi Zhu,Jinzhe Chang,Chaomei Luo,Abdul Salam,Jun Liu,Yongqing Wang,Zhixiang Zhang,Chen Zhao
Soil-borne diseases severely threaten global crop production and urgently require pesticide formulations with targeted effects to improve control efficiency. In this study, a one-pot synthesis method combined with solvent ratio screening was used to successfully prepare Pyr@ZIF-NH₂ loaded with pyraclostrobin (Pyr) achieving a high encapsulation efficiency of 97.42 % and a pesticide loading rate of 20.59 %. The Pyr@ZIF-NH 2 was modified with pectin to obtain Pyr@ZIF@P (119.4 nm), and its successful synthesis was confirmed through characterization. Pyr@ZIF@P enhanced the UV photostability of Pyr and effectively inhibited the growth of Fusarium graminearum , resulting in mycelial malformation. In vitro release studies showed significantly higher Pyr release under acidic, pectinase-rich conditions (mimicking infection sites) with cumulative releases rates of 83.1 % and 74.11 % within 72 h. Foliar application revealed that Pyr@ZIF@P improved foliar retention and promoted downward translocation compared to the commercial suspension, thereby enhancing the control of soil-borne diseases. Moreover, root deaching of Pyr@ZIF@P resulted in more substantial accumulation of active Pyr in the stem, thereby enhancing the control of Fusarium graminearum. Additionally, the zinc-based framework of Pyr@ZIF@P not only facilitates pesticide delivery but also contributes to enhanced root development in wheat seedlings. Taken together, this study presents a novel approach for controlling soil-borne diseases and supporting sustainable agricultural production.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Xian Zhang,Yuhang Yang,Jiage Yu,Ziming Li,Youyong Zhang,Xiangsheng Xie,Zhongping Zhang,Yunfeng Guan,Yuqiang Pi,Feng Wang,Yu Ding
Various strategies have shown promise for addressing the volume expansion issue of silicon (Si)-based anode materials and enhancing their electrochemical performance, such as nanocrystallization and the use of carbon-encapsulated nano-Si particles. However, the agglomeration of nano-Si particles remains a challenge, limiting their full potential. In this study, Zn-MOF-74 was employed to improve the dispersion of nano-Si powder in a carbon source. Subsequently, polyacrylonitrile was used in an electrospinning process to prepare an effective coating, followed by heat treatment to prepare nitrogen-doped Si/C flexible anode composites. The influence of the coating degree on electrochemical performance was investigated, and the Si/C-MOF-74/CNFs-2 composite prepared with 30.3 wt% nano-Si particles exhibited specific discharge capacities of 1030.1 mAh·g −1 after 150 cycles at 0.1 A·g −1 , 610.8 mAh·g −1 after 300 cycles at 1.0 A·g −1 , and 409.1 mAh·g −1 after 300 cycles at 2.0 A·g −1 .
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2020
·
IF 3.232
Shasha Feng,Fubin Pei,Yi Wu,Jingjing Lv,Qingli Hao,Tinghai Yang,Zhaoyang Tong,Wu Lei
A novel ratiometric fluorescent sensor based on Förster resonance energy transfer (FRET) platform was designed for riboflavin (RF) detection. The graphitic carbon nitrides quantum dots - Zn-MOF composite (g-CNQDs@Zn-MOF) was used as the fluorescent probe . In the FRET system, g-CNQDs@Zn-MOF and RF acted as donor and acceptor, respectively. The probe exhibited high sensitivity and good selectivity to RF, and had been successfully used for the detection of RF in milk and vitamin B 2 tablets. The detection limit of the sensor was 15 nM. The strategy expanded the application of MOF in sensing filed and provided a new method for the detection of RF.
研究领域:
分析化学
·
生物医学工程
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