RSC Advances
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2025
·Vol. 15
·期 15
·11503-11510
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IF 4.6
Ping Li,Xiaolin Yue,Anhong Li,Can Cui,Lan Wang,Wenyuan Tan
Cobalt 2-methylimidazole (ZIF-67) has been broadly explored for its applications in the treatment of antibiotics in wastewater. However, ZIF-67 in powder form is difficult to recover. In the study, ZIF-67 and Polyvinylidene Fluoride (PVDF) were blended via electrospinning to prepare ZIF-67/PVDF membrane for adsorption of ciprofloxacin (CIP). The ZIF-67/PVDF membrane demonstrated outstanding adsorption efficiency for CIP, with a maximum adsorption capability of 4087.5 μg cm−2. The adsorption performance of ZIF-67/PVDF remains stable across a wide pH range and is unaffected by ionic interference. The ZIF-67/PVDF adsorbent follows pseudo-second-order kinetics and the Langmuir model. Furthermore, thermodynamic research indicates the adsorption of CIP is a spontaneous and exothermic process. It is proposed that the adsorption mechanism of CIP onto ZIF-67/PVDF involves electrostatic interactions, hydrogen bonding, π–π interactions, coordination bonding, and hydrophobic interactions.
研究领域:
环境科学
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材料科学
·
水处理技术
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
·
2012
·
IF 2.625
Chi Ma,Di Pang,Zuochun Xiong,Wei Bai,Chengdong Xiong
Control of cellular responses is crucial for the use of electrospun membranes in biomedical applications, including tissue engineering or biomedical devices. However, it is still unclear whether adhesion and proliferation of fibroblasts is stimulated or inhibited on polyethylene glycol (PEG)-modified electrospun membranes. In this study, poly( L -lactide-co-glycolide) (PLLGA)–PEG copolymer and pure PEG were blended with PLLGA, and then electrospun onto nonwoven membranes. The effects of blending of PLLGA–PEG or pure PEG on the adsorption of proteins, and further on the adhesion and proliferation of L929 fibroblasts on the electrospun membranes were investigated. Addition of PLLGA–PEG or PEG significantly improved the hydrophilicity of the electrospun membranes. Pure PEG had no obvious effects on the growth of L929 fibroblasts; in contrast, PLLGA–PEG significantly inhibited the adsorption of proteins and the proliferations of the cells on the electrospun membranes. In response to diminished protein adsorption, mRNA expression of genes related to cell adhesion and migration was up-regulated. The limited effects of pure PEG were probably caused by its preferential dissolution, whereas membrane-confined PLLGA–PEG displayed excellent performance on the inhibition of protein adsorption and cell proliferation. © 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 100A:2897–2904, 2012.
研究领域:
生物医学工程
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组织工程
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DOI
PubMed
高影响因子
Bioengineering & Translational Medicine
·
2021
·Vol. 7
·期 2
·e10274
·
IF 10.711
Liming Zhou,Nanbo Liu,Longbao Feng,Mingyi Zhao,Peng Wu,Yunfei Chai,Jian Liu,Ping Zhu,Rui Guo
Bacterial infection is one of the most frequent complications in the burn and chronic wounds. Inspired by natural existing superhydrophobic surface structures, a novel asymmetric wettable membrane was prepared using the electrospinning technique for facilitating the bacteria-infected wound healing. Herein, the prepared membrane consists of two layers: The hydrophobic outer layer was composed of poly (lactic-co-glycolic) acid (PLGA) and black phosphorus-grafted chitosan (HACC-BP), while the hydrophilic inner layer was composed by using a mixture of gelatin (Gel) with ginsenoside Rg1 (Rg1). Biological studies in vitro showed BP@PLGA/Gel (BP@BM) membrane with excellent antibacterial activity could significantly inhibit the adhesion of bacteria, and Rg1 could facilitate the migration and tube formation of human umbilical vein endothelial cells (HUVECs). Compared to Aquacel Ag dressing, the result in vivo revealed that the Rg1/BP@BM could facilitate better wound healing by triggering phosphoinositide 3-kinase (P-PI3K/PI3K) and phosphorylation of protein kinase B (P-AKT/AKT) signaling pathways, upregulating Ki67, CD31, α-SMA, and TGF-β1, and downregulating TNF-α, IL-1β, and IL-6, promoting M2 polarization (IL-10, CD206, and Arg-1) of macrophages, inhibiting M1 polarization (iNOS) of macrophages. These findings suggested that the asymmetric wettable membrane have the huge potential for wound healing.
研究领域:
生物医学工程
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材料科学
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药理学
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DOI
PubMed
高影响因子
FIBERS AND POLYMERS
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2021
·Vol. 22
·期 7
·1844-1852
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IF 2.153
Zhang Hongnan,Yao Chenchen,Qin Xiaohong
Heavy metal copper ion pollution has enormously threatened ecosystem and public health. So, materials for detecting and adsorbing copper ions (Cu 2+ ) still remains challenging. Electrospinning nanomaterials have good application prospects in the field of water treatment because of its high specific surface area, high porosity and three-dimensional structure. Here, a visualized chitosan/polyacrylonitrile (CS/PAN) nanofiber membrane (NFM) was prepared via the amination modification of the electrospinning membrane and the doping of Cu 2+ fluorescent probe to adsorb Cu 2+ . The effect of membrane absorbs Cu 2+ in water was studied from the aspects of initial Cu 2+ concentration, PH and adsorption time. It was found that when the pH value of the Cu 2+ environment is 5–6, the weight gain rate of aminated nanofiber membrane is 46 %, and the adsorption time is 90 minutes, the adsorption capacity of the NFM can reach 164.3 mg/g. Then, rhodamine hydrazide derivatives were used as fluorescent Cu 2+ probes, which were added to the spinning solution to prepare new NFM to achieve selective recognition of Cu 2+ . The membrane can be used multiple times and can achieve gradient color development of different concentrations of Cu 2+ , and the detection limit can reach 10 −8 M.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Junjun Li,Tatiana Cherkasova,Yakovlev Alexey Nikolaevich,Peiling Yuan
Powdered sorbents in aqueous solutions suffer from the deficiency in the solid/liquid separation even the sorption capacities were higher than their bulk or less-dispersed forms. The combination of powdered sorbents with membranes would be highly desired to balance the contradiction between high separation efficiency and sorption capability. In this study, cellulose/ball-milled bone char (CL/MB) membranes with sub-micrometer diameter (276.0–281.7 nm) and developed porosity (21.5–98.6 m 2 /g) were fabricated by electrospinning technique. Bone chars originated from the pyrolysis of bone residuals at 350 °C, 500 °C and 650 °C could well dispersed in the electrospinning solvent. CL/MB membranes could adsorb U(VI) with fast kinetics (180.0 min), efficient capacity (309.8 mg/g at pH 5.00 and T 298 K) and excellent selectivity against the interference of coexisting ions in simulated waters. With spectroscopic analysis , the formation of (Ca(UO 2 ) 2 (PO 4 ) 2 (H 2 O) 3 precipitation was dominant for the selectivity. The surface complexation of O-/reductive N-groups with U(VI), the electrostatic attraction of deprotonated O - with positively charged U(VI) species, the cation exchange of U(VI) with Ca 2+ components, and the cation-π coordination of U(VI) should also be considered. This study pave the way for the feasible utilization of electrospun CL/MB membranes as a promising sorbent to capture aquatic U(VI).
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
FIBERS AND POLYMERS
·
2018
·Vol. 19
·期 8
·1611-1617
·
IF 1.353
Wang Cuie,Wang Ning,Liu Xinhua,Wan Peng,He Xinwei,Shang Yongjia
We propose a green synthesis of benzopyran compound based on immobilized lipase. Firstly, by using a combined electrospun membrane and biocompatible chitosan, we show that the chitosan-functionalized electrospun PMA-co-PAA fibrous membrane can provide effective anchoring sites for immobilization of the Candida antarctica lipase B (CALB), and a maximum loading amount of CALB (152 mg/g) can be achieved. Then, the resulting membrane displays enhanced stability in catalyzing Knoevenagel condensation reaction of salicylaldehyde with active methylene compound in mixed aqueousorganic media. The catalytic activity and stability of the CALB on chitosan-modified fiber is better than its non-immobilized counterpart. Furthermore, this immobilize CALB catalyst still retained about 45 % of the initial activity after 5 cycles, which potentially had implications for the design of “green” enzyme catalyst for sustainable organic synthesis.
研究领域:
生物化学
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绿色化学
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材料科学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Jing Wen,Shue Jin,Xue Luo,Chunhong Chen,Huan Liu,Yubao Li,Jidong Li
In cases of deep skin defects, spontaneous tissue regeneration and excessive collagen deposition can result in the formation of proliferative scarring. Salvianolic acid B (SAB) demonstrates promising applications in the treatment of fibrotic diseases, including scarring. This study prepared biodegradable gelatin (Gel) and poly(lactic- co -ε-caprolactone) (PLCL) nanofibrous membranes using electrospinning technology and functionalized them with salvianolic acid B to create fibrous membrane dressings with anti-scarring properties. The resulting Gel/PLCL/SAB (GPS) fibrous membrane exhibited good mechanical properties and biodegradability. In vitro experiments demonstrated that the fibrous membranes of Gel/PLCL containing 0.5 wt% SAB (GPS 0.5 ) exhibited good cytocompatibility, regulated macrophage function and polarization, and inhibited fibrosis-related genes, including CD36, α-SMA, and collagen I. In a mouse model of full-thickness skin defects, the GPS 0.5 fibrous membrane effectively modulated the immune microenvironment and promoted vascular regeneration, thereby accelerating skin healing. Furthermore, the GPS 0.5 fibrous membrane reduced the expression of CD36 and TGF-β1, downregulated collagen I and III, and promoted the regeneration of hair follicles, sebaceous glands, and other appendages, ultimately reducing scar formation. Thus, SAB-loaded Gel/PLCL fibrous membranes hold potential as bifunctional skin dressings that promote wound healing and inhibit fibrosis.
研究领域:
生物材料学
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医学
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再生医学
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产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2024
·
IF 16.8
Leqi Lei,Dong Wang,Yifan Si,Shuo Meng,Chuanwei Zhi,Jinlian Hu
The maintenance of a comparatively stable human body temperature through heating is essential for numerous physiological activities. However, the majority of the existing heating strategies are inefficient and wasteful in terms of energy usage, while also falling short in sufficiently protecting the human body against environmental hazards. Fabrics possessed the abilities to retain heat, repel water, and permit moisture to travel through are in high demand, which are essential for energy conservation and protective purposes. Herein, we introduce a highly efficient approach for producing electrospun membranes that exhibit excellent properties of heat confinement, water repellency, and moisture release properties, achieved by incorporating SiO 2 aerogel fillers into interconnected nanofibers. As a result, the obtained aerogel filler incorporation membrane (AFIM) composed of PVDF@SiO 2 exhibited a reduced thermal conductivity and reinforced moisture-release capability, leading to a 2 °C increase in temperature differential over its cotton counterpart and a water vapor transmission rate (WVTR) of 26.83 kg•m −2 day −1 . This work offers insights into the advancement of the thermoregulatory textiles to conserve energy and prevent waterlogging in future challenging conditions.
研究领域:
材料科学
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纺织工程
·
能源技术
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 138
·期 11
·50043
·
IF 2.52
Haitao Meng,Tong Xu,Mingyuan Gao,Jie Bai,Chunping Li
Oil–water separation is an urgent issue due to the frequently occurred oil leakages and increasing discharge of oily wastewater. The pollutional and wastewater can not only damage the environment, but endanger human health. Owing to the small particle size of the oil contamination, it is still a challenge for the separation of oil–water emulsion. In this study, we developed a facile strategy to prepare a hydrophilic polyvinylpyrrolidone/polyacrylonitrile (PVP/PAN) nanofibrous membrane for oil–water mixture and emulsion separation. The lowest water contact angle on the membrane surface can achieve 16.7°, thus the membranes can effectively resist the oil contamination on them. Moreover, the membrane can efficiently separate oil–water mixtures and emulsion by gravity. In addition, it can separate oil–water mixtures in harsh conditions (pH = 1 and 14). Membranes prepared in this work would hold a great potential in the practical use of water treatment and environmental industry.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
Nanoscale Advances
·
2020
·Vol. 2
·期 11
·5403-5411
·
IF 0
Weidong Han,Su-Hyeong Chae,Taewoo Kim,Daewoo Lee,Hakyong Kim
White-light-emitting materials have received significant attention because of their potential application in lighting, displays, and sensors. However, it is a challenge to obtain white light from one phosphor, because the basic requirement of the white light emission spectrum is that it should be wide enough to cover the entire visible light region. In this study, we have designed and demonstrated a white-light-emitting PMMA–CBS-127/PVP–coumarin 6/PAN–rhodamine B (PSCR) fibrous membrane, which was prepared through a triphasic electrospinning method. Three luminescent organic dyes, CBS-127 (4.77 wt%, blue), coumarin 6 (0.1 wt%, green), and rhodamine B (0.42 wt%, red), were elaborately selected and doped into PMMA, PVP, and PAN, respectively. The resulting flexible PSCR membranes show white light emission (cover the entire visible-light region from 382 to 700 nm) with Commission Internationale de L'Eclairage (CIE) coordinates of (0.31, 0.32), which is very close to ideal white light with CIE coordinates (0.33, 0.33). In addition, the PSCR membranes maintained high-quality white light emission after about 10 weeks of storage. The PSCR membranes can be used as the phosphor converting layer in white light-emitting diodes (WLEDs) through a remote membrane packaging method. A bright white emission is achieved at an applied voltage of 9 V. Therefore, the results indicate that PSCR membranes are potentially attractive candidates for application in WLEDs and displays.
研究领域:
材料科学
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光学工程
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产品关联
DOI
PubMed
Advanced Materials Interfaces
·
2016
·Vol. 3
·期 19
·1600516
·
IF 3.365
Yang Li,Fangfang Yang,Jianyong Yu,Bin Ding
Breathable and waterproof membranes have great importance in various applications due to their permissibility of vapor transmitting and resistance to water penetrating. Despite the available strategies, it remains a serious challenge to fabricate membranes with best equilibrium of breathable and waterproof performance. Herein, hydrophobic fibrous membranes have been designed and prepared via electrospinning using polyurethane and fluorinated polyurethane as the raw polymers. By regulating the relative humidity and electrospinning time, fibrous membranes with tunable porous structure have obtained. Significantly, the effect of porosity, pore size, and pore length on the breathable and waterproof performance has been investigated. Ultimately, the fibrous membranes obtained at relative humidity of 60% with optimized porosity of 60%, mean pore size of 1.2 μm and pore length of 50 μm exhibit best equilibrium of breathable (water vapor transmission rate of 11.9 kg m −2 d −1 ) and waterproof (hydrostatic pressure of 86 kPa) performance, as well as good mechanical behavior with tensile strength of 10 MPa and elongation of 353%, indicating an appropriate candidate in various applications, especially for fabricating of protective garments.
研究领域:
材料科学
·
纺织工程
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产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2017
·
IF 2.572
Jinshan Cao,Zhiqiang Cheng,Lijuan Kang,Yingying Zhang,Xiaodong Zhao,Shengzhe Zhao,Bo Gao
In this study, a novel polyethersulfone/polyamide 66 (PES/PA66) filtration media for airborne particles was prepared via electrospinning technique. SEM, TEM, FTIR, tensile tester, contact angle analyzer, thermogravimetric analyzer (TGA) and differential scanning calorimeter (DSC) were employed to characterize the morphology, the structural properties, mechanical properties, wettability and thermal properties, which indicated that the surface of the PES/PA66 composite nanofibers was smooth and uniform. As compared to pure PES membrane, the hydrophilicity of the PES/PA66 filtration membrane surface was better. Moreover, the composite membranes showed excellent filtration efficiency for the PM 0.3-5 , which was 99.999% for 0.3 μm particle.
研究领域:
材料科学
·
环境工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）