JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2025
·
IF 1.6
Zhao Fan,Zhang Wei,Chen Yuantao
The zinc-based metal–organic framework (IRMOF-3) was assembled on the surface of Galdieria sulfuraria (Gs) via a one-pot method to fabricate the composite adsorbent Gs/IRMOF-3. Results show that the material achieves optimal adsorption performance at pH = 6. The adsorption process follows the Freundlich isotherm model and pseudo-second-order kinetic model, demonstrating that it is dominated by multi-molecular layer chemical adsorption and represents a spontaneous endothermic process. This study provides a novel strategy for developing efficient and eco-friendly uranyl adsorption materials.
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POLYMER BULLETIN
·
2020
·Vol. 78
·期 7
·3785-3801
·
IF 2.014
Ma Yu,Wang Lulu,Feng Ruijiang,Wang Jilin,Cai Tianzhou
In this study, we prepared a novel composite membrane (QCS-IRMOF-3) by attaching IRMOF-3 (metal–organic framework materials, formed by coordination of metallic zinc and 2-aminoterephthalic acid) with a free amino group to a quaternized chitosan (QCS) by chemical cross-linking. The successful synthesis of IRMOF-3 was verified by SEM, XRD, and FT-IR. Then, the mechanical properties, swelling properties, ion exchange capacity, hydroxide conductivity and chemical stability of the composite membrane (QCS-IRMOF-3) were also investigated. It was found that the performance of the aforementioned composite membrane was affected obviously by the amount of IRMOF-3 crystals. The composite membrane doped with 15 wt% IRMOF-3 crystals exhibits better overall performance, which included that the tensile strength is 22.4 MPa, water uptake is 78.4%, hydroxide conductivity is 29.9 mS cm −1 at 80 °C, and after immersion in 6.0 mol L −1 KOH solutions at 60 °C for about 240 h, only the conductivity decreased by less than 10%. This result implies that the composite membrane synthesized in this research is promising for application in alkaline polymer electrolyte fuel cells.
研究领域:
材料科学
·
燃料电池技术
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高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Haoyue Ning,Lixin Lu,Jing Xu,Lijing Lu,Liao Pan,Zidong Lin
The purpose of this study was to compare the effects of different concentrations of the amine-functionalized isoreticular metal-organic framework-3 loaded with carvacrol (IRMOF-3/CA) on the properties of sodium alginate (SA) composite films, thus determining the optimal addition amount and further preparing bioactive packaging film with antibacterial and antioxidant activities. The morphology, structure, physical properties, antioxidant and antibacterial activities of the films were characterized and analyzed. The results showed that the thermal stability and light barrier property of the films were improved by the addition of IRMOF-3/CA. When the additional concentration was 0.4 wt%, the tensile, water vapor barrier and hydrophobic properties of the films were increased by 30.13%, 9.06% and 46.43% respectively compared with those of pure SA film. Moreover, the film added with IRMOF-3/CA had sustained antioxidant and antibacterial activities , and had an apparent fresh-keeping effect on pork, suggesting its application potential in food packaging.
研究领域:
食品科学
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材料科学
·
生物化学
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2015
·Vol. 39
·期 8
·5898-5901
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IF 3.086
Xiao Lian,Bing Yan
Both metal organic frameworks (IRMOF-3) and SBA-15 have been used to assemble novel photofunctional multi-component lanthanide hybrid materials (Ln-SBA-15-Si-IRMOF-3, Ln = Eu, Tb, Nd, and Yb), whose luminescent color can be tuned by adjusting the composition.
研究领域:
材料科学
·
光学
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高影响因子
RSC Advances
·
2016
·Vol. 6
·期 96
·94113-94118
·
IF 3.289
Weigang Li,Gang Li,Dan Liu
A new type of magnetic core–shell structured MOF composite (Fe3O4/IRMOF-3) was successfully prepared by a facile mixed solvothermal method. Fe3O4 nanoparticles and polyvinylpyrrolidone (PVP) are the magnetic core and promoter, respectively. Fe3O4 nanoparticles are encapsulated completely inside the MOF matrix. PVP not only functions as the stabilizer to make the Fe3O4 nanoparticles well dispersed but also provides the ability to adsorb IRMOF-3 precursors onto the surface of the Fe3O4 nanoparticles. The composite possesses high crystallinity, porosity characteristics, a rapid magnetic response and good stability. In addition, the catalytic performance of Fe3O4/IRMOF-3 is investigated via the Knoevenagel condensation reaction of benzaldehyde and ethyl cyanoacetate. The conversion of ethyl cyanoacetate reaches 98.3% after 4 hours. More importantly, the catalyst can be quickly separated by a magnet and reused many times.
研究领域:
材料科学
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化学工程
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LWT-FOOD SCIENCE AND TECHNOLOGY
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2023
·
IF 6
Kejun Chen,Charles Brennan,Jianxin Cao,Guiguang Cheng,Lin Li,Yuyue Qin,Haiyan Chen
In this work, we prepared chitosan/eugenol-loaded IRMOF-3 nanoparticles (CS/IRMOF-3-EU) composite films using (0, 2, 4, and 6 wt%) isoreticular metal-organic framework (IRMOF-3) nanoparticles loaded with eugenol (IRMOF-3-EU), co-blended with chitosan to develop environmentally friendly food packaging materials with sustained antimicrobial activity. The microstructure and physicochemical properties of the composite films were investigated. The addition of IRMOF-3-EU to the CS matrix significantly enhanced the UV-blocking property and elongation at the break of the composite films; the CS/IRMOF-3-EU composite films inherited the antioxidant and antibacterial properties of eugenol (EU), and the DPPH radical scavenging ability was increased to 53.8% with the addition of 6% IRMOF-3-EU, while it showed excellent antibacterial ability; in addition, the CS/IRMOF-3-EU composite films achieved the sustainable release of eugenol to achieve the long-lasting antibacterial effect. Experiments on strawberry preservation applications showed that the CS/IRMOF-3-EU films slowed down the deterioration of strawberry quality, delayed the decline of hardness, effectively suppressed weight loss, H 2 O 2 content, and malondialdehyde content, and delayed the decline of catalase activity and peroxidase activity. It showed that the CS/IRMOF-3-EU composite films could be used to maintain the postharvest quality and prolong the shelf life of strawberries.
研究领域:
食品科学
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材料科学
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植物病理学
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Haoyue Ning,Yuemei Zhang,Lixin Lu,Liao Pan
Nanoparticles are used as fillers to improve the properties of biopolymers , and their particle size is an important parameter. This work aims to investigate the effect of particle size of isoreticular metal-organic framework-3 (IRMOF-3) on the mechanical, physical, and release properties of sodium alginate (SA)-based composite active film. In our study, IRMOF-3 with six different particle sizes was synthesized by introducing additives. IRMOF-3 loading with carvacrol (IRMOF-3/CA nanoparticles) was incorporated into the SA matrix to prepare the composite film . The characterization and testing results of films showed that the particle size of nanoparticles affected the physical morphology and chemical structure of the film. Especially smaller nanoparticles uniformly dispersed into the SA matrix more easily, forming a denser and more stable spatial network structure with SA, which could more significantly improve the tensile strength , water vapor barrier, and hydrophobic properties of the film ( P < 0.05). In addition, the CA release rate from the active film could be significantly reduced by about 33.90 % even when the smallest particle size of the IRMOF-3/CA nanoparticles was added. Therefore, when IRMOF-3/CA is used as the nano-filler to develop SA-based active film, its particle size has a potential influence on the properties of the film.
研究领域:
材料科学
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食品科学
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化学工程
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PubMed
高影响因子
ANALYTICA CHIMICA ACTA
·
2014
·
IF 4.517
Juan Zheng,Siyan Li,Ying Wang,Lei Li,Chengyong Su,Hong Liu,Fang Zhu,Ruifen Jiang,Gangfeng Ouyang
A superior solid-phase microextraction (SPME) fiber-coating material, IRMOF-3@ILs/PDMS, was prepared by the in situ growth of IRMOF-3 onto stainless-steel wires and protection with ionic liquids (ILs) and polydimethylsiloxane (PDMS). The ILs can efficiently prevent the substantial cracking of IRMOF-3 caused by moisture, and a thin PDMS film can protect the IRMOF-3@ILs material to achieve a much better extraction efficiency as well as excellent resistance to high temperature and high humidity. This IRMOF-3@ILs/PDMS coating possessed a porous structure, a rough surface and an increased lifespan (by at least 100 times) compared with that of IRMOF-3. The coating was evaluated by analyzing four polycyclic aromatic hydrocarbons (PAHs) in water, and good precision (<7.7%), low detection limits (12.0–15.4 ng L −1 ), and wide linearity (50–20,000 ng L −1 ) were achieved under the optimized conditions. The fiber was successfully applied to the sensitive analysis of PAHs in rainwater by coupling it with gas chromatography–mass spectrometry (GC–MS).
研究领域:
分析化学
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环境科学
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材料科学
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PubMed
高影响因子
Food Bioscience
·
2024
·
IF 4.8
Yuyue Qin,Hongda Yu,Kejun Chen,Rui Cui,Jianxin Cao,Zhengxuan Wang,Zhi-Hong Zhang,Thanapop Soteyome
The market value of strawberries is considerably impacted by quality deterioration and senescence during postharvest storage. In the study, the effect of isoreticular metal-organic skeleton (IRMOF-3) nanoparticles loaded with eugenol/chitosan-based active packaging film on the metabolism of reactive oxygen species (ROS) and the change rule of the structure of the microbial community in strawberries inoculated with strawberries spoilage bacteria ( Botrytis cinerea ) during the storage period was investigated. The results demonstrated that composite film contribute to the sustenance of reduced hydrogen peroxide and superoxide anion concentrations and the suppression of malondialdehyde accumulation, in contrast to the control group. This investigation revealed that the composite film significantly bolstered the antioxidant enzyme activities and disease resistance-related enzyme activities of strawberries, encompassing polyphenol oxidase, peroxidase, superoxide dismutase (SOD), and catalase (CAT). Moreover, the transcription levels of SOD and CAT genes were notably elevated in strawberries packed within the composite films. Besides, the composite film had an inhibitory effect on pathogenic bacterial genera ( Ralstonia , Sphingomonas , and Erwinia ) and fungal genera ( Botrytis cinerea ) that cause strawberries spoilage and a delayed decline in bacterial genera (unidentified_ Chloroplast and Chryseobacterium ) and fungal genera ( Rhodotorula ) that are biocontrols of strawberries postharvest diseases. Therefore, this study provides novel perspectives on the mechanisms underlying the preservation of fruits and vegetables, focusing on alterations in ROS metabolism and microbiota composition during storage.
研究领域:
食品科学
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植物病理学
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分子生物学
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MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 11
·1-15
·
IF 6.408
Qin Dongmiao,Meng Shuo,Wu Yusheng,Luo Zhi,Deng Biyang
An efficient electrochemiluminescence resonance energy transfer (ECL-RET) method is proposed which combines the luminescent materials of tris(4,4′-dicarboxylicacid-2,2′-bipyridyl) ruthenium(II) (energy donor) and tin dioxide and tin disulfide quantum dots (SnO 2 /SnS 2 QDs) (energy acceptor) into the isoreticular metal − organic framework-3 (IRMOF-3) material to form a composite. In this mode, the distance between the energy donor and the acceptor was greatly shortened, reducing the energy loss, and thereby effectively improving RET efficiency and further significantly improving the ECL signal. The obtained composite (SnO 2 /SnS 2 QDs-Ru@IRMOF-3) was combined with sandwich immunoreaction to construct an ECL immunosensor for the sensitive detection of procalcitonin (PCT). Under the optimized experimental conditions with a working potential of − 1.48 V (vs Ag/AgCl), the proposed PCT biosensor exhibited a linear concentration range of 1 × 10 −4 –200 ng mL −1 , with a detection limit of 0.029 pg mL −1 ( S / N = 3). The biosensor was used to detect PCT in actual samples. The biosensor has broad application prospects in biological analysis and clinical diagnosis due to its high sensitivity, good selectivity, and good stability. Graphical abstract
研究领域:
分析化学
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生物传感器
·
临床诊断
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DOI
PubMed
高影响因子
Food Bioscience
·
2024
·
IF 4.8
Haoyue Ning,Lixin Lu,Yuemei Zhang
To achieve long-term effective protection of food by continuously controlling the release of active substances in an active film, IRMOF-3 was post-synthetic modified with benzoic acid (BA) to obtain BA-IRMOF-3. This modification enhanced the loading capacity of carvacrol (CA) and slowed down its release rate. Research on IRMOF-3 synthesis has found that increasing the proportion of metal nodes can improve its crystallinity. The post-synthesis modification of IRMOF-3 through amide reaction successfully enhanced the binding energy with CA from −5.1 kcal/mol to −6 kcal/mol, resulting in an improved CA loading rate of 28.62% ± 0.15% and delayed release. Furthermore, the BA-IRMOF-3/CA assembly was added to the sodium alginate matrix to prepare the active film BMC@SA, which improved the mechanical and physical properties of the film. The release and antibacterial/antioxidant properties were investigated. The results demonstrated that the active film BMC@SA exhibited significant sustained-release properties and antibacterial/antioxidant activities, reducing the growth of E. coli and S. aureus by 61.95% and 49.33% respectively. In refrigerated pork experiments, the film BMC@SA slowed down the color, weight, pH changes and inhibited microbial growth of fresh pork effectively, and extended the shelf life of pork from 6 d to 12 d, which demonstrated the potential application of active film BMC@SA in food preservation.
研究领域:
食品科学
·
材料科学
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高影响因子
MOLECULES
·
2023
·Vol. 28
·期 23
·7703
·
IF 4.6
Hongda Cheng
Metal–organic frameworks (MOFs) are considered to be promising materials for drug delivery. In this work, a Zinc-based MOF nanocomposite IRMOF-3 was introduced as a drug carrier for 10-hydroxycamptothecine (HCPT). Without an extra drug-loading process, a nanoscale drug delivery material HCPT@IRMOF-3 was prepared via one-pot synthesis. The composition and structure of the material were investigated, and the drug release character was measured. Compared with preparing IRMOF-3 first and loading the drug, the one-pot-prepared HCPT@IRMOF-3 exhibited a higher drug-loading capacity. The material presented pH-responsive release. The HCPT release rate at pH 5.0 was significantly higher than that at pH 7.4. The cytotoxicity experiments showed that IRMOF-3 was non-toxic, and HCPT@IRMOF-3 exhibited notable cytotoxicity to Hela and SH-SY5Y cells. One-pot synthesis is a simple and rapid method for the preparation of an MOF drug delivery system, and IRMOF-3 can be potentially used in pH-responsive drug delivery systems.Keywords:IRMOF-3;drug delivery;one pot;pH response;HCPT
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