INORGANIC CHEMISTRY
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2020
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IF 4.825
Xiao Lian,Yu Zhang,Jinmin Wang,Bing Yan
A sandwiched mixed matrix membrane (MMM) based on a metal–organic framework–hydrogel hybrid exhibits eximious performance in the detection of mitoxantrone. Parts per billion-level sensitivity and good selectivity in serum among other analogous antineoplastics have been achieved. This flexible MMM can be used for point-of-care testing drugs in a biological medium.
研究领域:
分析化学
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材料科学
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生物传感技术
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药物分析
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纳米技术
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2024
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IF 18.5
Qian Zhou,Kaiyi Dong,Meng Wei,Bingfang He,Bingbing Gao
Microfluidic chips play crucial roles while lack satisfactory controllability and comprehensive functionality. Inspired by biological systems, this study proposes a method utilizing rolling microneedles (RMNs) to generate muti-structured templates, realizing photonic crystal membrane (PC) based meta microfluidic microneedle chip (MMM) for efficient wound management. This approach offers advantages in terms of speed and cost-effectiveness, achieving dual-sided permeation and patterned design by directly RMNs at desired locations, serving as both template tools for microneedle fabrication. The integration of RMNs with a PC membrane results in the design of 3D multilayer microfluidic channels, effectively addressing issues related to spontaneous fluid flow. As fluid reaches the PC membrane, it generates distinctive structural colors and exhibits fluorescence enhancement, enabling the monitoring of inflammatory factors in mouse wounds and facilitating efficient wound management. In summary, this preparation method involving RMNs paves the way for the design and fluid control of microfluidic chips. This bioinspired patch holds significant potential not only for wound management but also for areas such as clinical drug delivery and point-of-care testing (POCT).
研究领域:
生物医学工程
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微纳米技术
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药物递送
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Hui Wang,Yutao Liu,Yongheng Ren,Siyuan Peng,Jiayou Liao,Jinping Li,Libo Li
Membrane technology is a promising candidate for ethylene/ethane (C 2 H 4 /C 2 H 6 ) separation, but the separation factor and long-term stability of commercially available polymer membranes remain still insufficient to meet industrial requirements. Incorporating facilitated metal-ion carriers or unsaturated metal sites of fillers into polymers shows exceptional C 2 H 4 /C 2 H 6 separation efficiency due to the intensified olefin-favorable sorption . However, their separation performance usually dropped within a few hours due to the inactivation of the facilitated transport carrier or poisoning of unsaturated sites in presence of water vapor . Herein, we adopt a facile and effective method to prepare long-term stable Silicalite-1@Ag (S-1@Ag) mixed matrix membranes (MMM) by in-situ embedding the vulnerable carrier Ag + into the pores of the hydrophobic zeolite to protect the Ag + from deactivation. The 12 wt% S-1@Ag filler uniformly dispersing within the commercial 6FDA-DAM exhibits superior separation performance that surpasses the 2013 upper bound in terms of C 2 H 4 permeability of 29.74 barrer and C 2 H 4 /C 2 H 6 selectivity up to 7.66 for equimolar mixed gas. Furthermore, the hydrophobicity nature and framework shielding towards Ag + of S-1 guarantees the excellent almost 2-months stable separation of C 2 H 4 /C 2 H 6 by S-1@Ag MMMs under the high relative humidity conditions, demonstrating its potential for industrial applications.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
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IF 8.6
Huahao Wang,Yaping Ding,Mengjia Ning,Miao Yu,Wenji Zheng,Xuehua Ruan,Yuan Xi,Yan Dai,Hongjing Liu,Gaohong He
Metal organic frameworks (MOFs) with appropriate pore size and sufficient CO 2 -philic groups are required to improve the mixed matrix membranes (MMMs)-based CO 2 capture. Herein, NH 2 -CPL-1 is designed for capture by utilizing amino pyrazine instead of pyrazine in CPL-1. The introduced CO 2 -philic amino groups together with rich hydroxyl and carboxyl groups in CPL-1 could improve the selective adsorption of CO 2 , enhancing the solubility selectivity. At the meantime, after the introduction of amino-functional, the pore size of NH 2 -CPL-1 is decreased from 0.93 nm of CPL-1 to 0.85 nm, which is beneficial for the screening of CO 2 over N 2 . As a result, the CO 2 separation performances of MMMs could be promoted greatly under the action of NH 2 -CPL-1. MMM with NH 2 -CPL-1 of 10 wt.% exhibited the best CO 2 separation performance, with CO 2 /N 2 selectivity of 85 and CO 2 permeability of 104 Barrer at 25 °C and 0.4 MPa. Compared with the CPL-1/Pebax-10 wt.% MMM, it was increased by 9.5 % and 13.3 %, respectively. This satisfactory CO 2 separation performance surpasses those of most reported other MOFs based MMMs, which is attributed to the facilitated CO 2 transport and pore size screening from the introduced amino groups. This is also confirmed by the improvement of diffusion selectivity and solution selectivity. The proposed NH 2 -CPL-1 shows great prospect as filler for enhanced MMMs-based CO 2 capture.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
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2021
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IF 7.514
Peipei Zhou,Wei Zhang,Xuedong Wang
Inevitably, the residues of polycyclic aromatic hydrocarbons (PAHs) in tea leaves will be transferred to hot tea infusion, constituting a certain drinking risk; consequently, it is imperative to develop rapid, sensitive, and robust approaches for their trace-level detection. Herein, we developed a syringe membrane-based microextraction (SMME) method for preconcentration/extraction of PAHs in tea infusions. This method utilized metal–organic framework-mixed matrix membranes (MOF-MMMs) as adsorbents, which anchored the nanoparticles of MOFs onto the surface of PVDF membrane. The UiO-66 (Zr)-based MMM possessed high Brunauer-Emmett-Teller (BET) surface area (320.5 m 2 g −1 ) and pore volume (0.18 cm 3 g −1 ), thus enhancing extraction/adsorption efficiency. Under optimized conditions, the limits of detection for PAHs reached as low as 0.02–0.08 μg L −1 with extraction recoveries of 85.5–102.1%, and the inter-day and intra-day precision was lower than 8.4% in tea infusions. Consequently, the SMME/HPLC-DAD method shows a great potential in conventional monitoring of PAHs in tea samples.
研究领域:
分析化学
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环境科学
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食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）