INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Han Dong,Pu Zhou,Fan Yang,Enhao Zhang,Yifan Liu,Yefei Tian,Hongye Yuan
The development of metal–organic framework (MOF)-based adsorbents with high uptake capacity and mild regeneration conditions represents a promising avenue for addressing environment-based issues. In this study, we present the successful synthesis of temperature-responsive composite aerogels comprising MOF-808 and poly(N-isopropylacrylamide) (PNIPAM), which forms interpenetrated networks with acrylamide (AM). The resulting thermally responsive PNIPAM/MOF-808 composite aerogels achieved an impressive maximum water capture exceeding 2267 wt % at room temperature, with reversible release observed above 32 °C due to the hydrophilicity–hydrophobicity transition of PNIPAM. Interestingly, the aerogels also exhibit an iodine (I2) capacity of 234 wt % based on the charge transfer mechanism. This study provides a novel strategy for the preparation of efficient and reusable porous adsorbent materials, and it also demonstrates broad application prospects in areas such as water resource management and waste reduction.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
Polymers
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2019
·Vol. 11
·期 3
·524
·
IF 3.164
Yi Chen,Yueyun Zhou,Wenyong Liu,Hejie Pi,Guangsheng Zeng
In order to improve the performance of traditional sodium alginate (SA) hydrogels cross-linked by Ca2+ions to meet greater application demand, a strategy was designed to structure novel SA-based gels (named OP-PN gels) to achieve both stimulus responsiveness and improved mechanical strength. In this strategy, the SA chains are co-cross-linked by CaCl2and cationic octa-ammonium polyhedral oligomeric silsesquioxane (Oa-POSS) particles as the first network, and an organically cross-linked poly(N-isopropyl acrylamide) (PNIPA) network is introduced into the gels as the second network. Several main results are obtained from the synthesis and characterization of the gels. For OP-PN gels, their properties depend on the content of both uniformly dispersed Oa-POSS and PNIPA network directly. The increased Oa-POSS and PNIPA network content significantly improves both the strength and resilience of gels. Relatively, the increased Oa-POSS is greatly beneficial to the modulus of gels, and the increased PNIPA network is more favorable to advancing the tensile deformation of gels. The gels with hydrophilic PNIPA network exhibit better swelling ability and remarkable temperature responsiveness, and their volume phase transition temperature can be adjusted by altering the content of Oa-POSS. The deswelling rate of gels increases gradually with the increase of POSS content due to the hydrophobic Si–O skeleton of POSS. Moreover, the enhanced drug loading and sustained release ability of the target drug bovine serum albumin displays great potential for this hybrid gel in the biomedical field.Keywords:octa-ammonium POSS;sodium alginate;hydrogels;temperature responsiveness
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2012
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IF 2.103
Cheng Jiang,Qihua Wang,Tingmei Wang
Thermoresponsive poly(N-isopropylacrylamide) (PNIPAAm) was grafted onto the cotton fabric by atom transfer radical polymerization (ATRP). Introducing 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTS) onto the surface, the density of PNIPAAm chains can be adjusted because of the competitive reactions of (3-aminopropyl) triethoxysilane (APS) and PFDTS. With the appropriate ratio of APS and PFDTS, the cotton fabric can be switched from superhydrophilic to superhydrophobic by controlling temperature. The prepared cotton fabric may find application in functional textiles, soft and folding superhydrophobic materials.
研究领域:
材料科学
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纺织工程
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DOI
高影响因子
WATER RESEARCH
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2024
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IF 11.4
Hongzhi Liu,Zi Wang,Hesong Wang,Zihan Liu,Jiaxuan Yang,Han Zhang,Heng Liang,Langming Bai
To address the issues of scaling caused by heat and water evaporation in regard to circulating cooling water (CCW), TFC membrane filtration systems have been increasingly considered for terminal treatment processes because of their excellent separation performance. However, membrane biofouling phenomenon significantly hinders the widespread utilization of TFC membranes. In this study, to harness the thermal phenomenon of CCW and establish a stable and durable multifunctional antibiofouling layer, temperature-responsive Pnipam and the spectral antibacterial agent Ag were organically incorporated into commercially available TFC membranes. Biological experimental findings demonstrated that above the lower critical solution temperature (LCST), the contraction of Pnipam molecular chains facilitated the inactivation of bacteria by the antibacterial agent, resulting in an impressive sterilization efficiency of up to 99 %. XDLVO analysis revealed that below the LCST, the establishment of a hydration layer on the functional interface resulted in the creation of elevated energy barriers, effectively impeding bacterial adhesion to the membrane surface. Consequently, a high bacterial release rate of 98.4 % was achieved on the low-temperature surface. The alterations in the functional membrane surface conformation induced by temperature variations further amplified the separation between the pollutants and the membrane, creating an enhanced "elastic interface." This efficient and straightforward cleaning procedure mitigated the formation of irreversible fouling without compromising the integrity of the membrane surface. This study presents a deliberately engineered thermoresponsive antibiofouling membrane interface to address the issue of membrane fouling in membrane-based CCW treatment systems while shedding new light on the mechanisms of "inactivation" and "defense."
研究领域:
环境科学
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材料科学
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微生物学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
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2023
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IF 5.3
Li Jing,Liu Wan,Jiang Ping
First, biocompatible temperature-responsive polymer chitosan- graft - N -isopropylacrylamide (CS- g -PNIPAm) synthesized via ATRP. Second, mugwort oil (MO) was encapsultated with CS- g -PNIPAm as shell materials to form long-term anti-bacterial agents and temperature responsive microcapsules. The CS- g -PNIPAm@MO (CSPN@MO) microcapsules were prepared via single coacervation method and solvent evaporation method. The chemical structures of CS 0.1 - g -PNIPAm 22 was confirmed by 1 H NMR and FTIR. And the copolymer micelles were characterized by UV, laser particle-size analysis, and TEM. The results indicated that the copolymer had temperature-responsive behaviors. The microcapsules were characterized by laser particle-size analyzers (LPSA), scanning electron microscopy (SEM), TG and anti-bacterial agents performance testing. The results showed that the average particle size of microcapsules was 0.28 μm, and the encapsulation efficiency and drug loading efficiency of MO reached 60.2 and 44.5%. After 48 h of release in media at different temperature (20, 40 and 60 °C) still sequestered 79.2, 92.2 and 96.1% of MO which approved the shell of microcapsules responded to different temperature. The morphology of CSPN@MO microcapsules revealed that the microcapsules presented smooth and firm structure. Antibacterial test for Artemisia argyi of CSPN@MO implied that the bacteriostatic rate reached 99.2 and 96.2% after 1 day and 10 days respectively. Bio-based macromolecular modification strategies can provide inspiration for the development of green microcapsules. Graphical Abstract
研究领域:
材料科学
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生物医学工程
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DOI
高影响因子
RENEWABLE ENERGY
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2019
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IF 5.439
Xueyan Zhang,Xiaoyu Zhang,Ningyue Sun,Shengtian Wang,Xiaohong Wang,Zijang Jiang
Heteropolyacids (HPAs), super strong Brønsted acid solids, were recently reported to achieve cellulose conversion with high efficiency. To achieve higher levulinic acid (LA) yield, a series of Lewis metal-substituent phosphotungstic acids H n PW 11 LO 39 (HPWL, L = Cu II , Sn IV , Cr III , Zn II , Fe III ; L = Ti IV , Zr IV , oxygen is 40) were used as catalysts in polysaccharides conversion. Identification of the reaction intermediates and products provided some information for cellulose conversion pathway. H 5 PW 11 TiO 40 (Brønsted/Lewis acid = 2.84:1) was found to be most active with highest cellulose conversion giving highest glucose yield in water and highest LA yield in methyl isobutyl ketone (MIBK)/water. In addition, for overcome the drawbacks in mass transferring and separation, the temperature-responsive catalyst of HOCH 2 CH 2 N(CH 3 ) 3 H 4 PW 11 TiO 40 (ChH 4 PWTi) was prepared giving as high as 76.1% LA yield at 93.8% cellulose conversion more than those by HPWTi (65.6%, 90.5%). Also, ChH 4 PWTi was obtained 93.7% conversion and 70.9% yield at microwave. ChH 4 PWTi also presented higher feedstocks - tolerance to mono-, di- or polysaccharides and even lignocellulose (corn straw, pinewood, husk of xanthoceras, coconut shell) to LA. As highest as 33.0% LA yield at 68.0% conversion was obtained by ChH 4 PWTi from husk of xanthoceras under mild conditions. ChH 4 PWTi could be recycled 12 times without significant loss of activity, which showed longer duration.
研究领域:
生物化学
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催化化学
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
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2025
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IF 9.8
Feifan Lu,Jingyu Xu,Zheng Li,Xing Wang,Jinghui Zhou,Yuanhao Wang,Fengzhi Tan
Supercapacitors, known for their long cycle life and high-power density, are pivotal in various industrial and everyday applications. Addressing the dual challenges of green chemistry and the high-value utilization of lignin, this study introduces a novel synthesis process of carbon aerogels. These aerogels incorporate temperature-responsive carbon nanotubes (CNTs), synthesized via a one-pot method using magnesium lignosulfonate as precursor. Notably, the optimized carbon aerogel (AC-600) demonstrates a specific capacitance of 369 F g −1 at a current density of 1 A g −1 and retains 100 % capacitance after 20,000 charge/discharge cycles at 10 A g −1 . It also achieves an energy density of 17.6 Wh kg −1 and a power density of 489.9 W kg −1 . This paper proposes a novel strategy of replacing randomly dispersed carbon nanoparticles with self-synthesized, temperature-responsive CNTs, enhancing the structural integrity of honeycomb lignin-based carbon aerogels. This innovative approach opens new avenues for the efficient use of lignin-based aerogels in energy storage technologies.
研究领域:
材料科学
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绿色化学
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能源存储技术
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产品关联
DOI
高影响因子
Advanced Materials Technologies
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2024
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IF 6.4
Jiru Huai,Jiaxuan Zhang,Peng Wang,Wenjie An,Xiang Zhao,Zhen Zhang,Wenliang Wang,Wei Duan,Ying Yue
Recently, slippery liquid-infused porous surface (SLIPS) is widely utilized for anti-icing. Nevertheless, a major challenge hindering the practical applications of SLIPS is the depletion of lubricating oil, significantly deteriorating its deicing performance. Given that super-slippery effects are not required during most non-icing periods, this research introduces a novel dynamic wettability-adjustable SLIPS anti-icing coating inspired by the nepenthes. This coating-comprising modified diatomaceous earth and soft silicone rubber-releases lubricating oil only when temperatures fall below −2 °C, thus exhibiting super-slippery characteristics and effectively preventing icing. The porous modified diatomaceous earth retains lubricating oil for prolonged periods and facilitates its controlled release under external forces. The high elasticity and strength of the soft silicone rubber endow the coating with thermal expansion and contraction capabilities, enabling the active absorption and release of lubricating fluid in response to temperature variations. This coating, prepared using a straightforward strategy, demonstrates an ice adhesion strength and an oil loss rate of less than 23 kPa and 13%, respectively, after 50 icing/de-icing cycles. These findings highlight the remarkable performance of the coating, providing valuable insights for achieving long-term anti-icing on the external surfaces of equipment in extreme working conditions.
研究领域:
材料科学
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表面工程
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产品关联
DOI
高影响因子
Journal of Environmental Sciences
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2022
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IF 6.796
Mei Du,Jingzhang Liu,Fengbang Wang,Lei Bi,Chunyan Ma,Maoyong Song,Guibin Jiang
Bacterial infections have become a great threat to public health in recent years. A primary lysozyme is a natural antimicrobial protein; however, its widespread application is limited by its instability. Here, we present a poly (N-isopropylacrylamide) hydrogel inverse opal particle (PHIOP) as a microcarrier of lysozyme to prolong and enhance the efficiency against bacteria. This PHIOP-based lysozyme (PHIOP-Lys) formulation is temperature-responsive and exhibits long-term sustained release of lysozyme for up to 16 days. It shows a potent antibacterial effect toward both Escherichia coli and Staphylococcus aureus , which is even higher than that of free lysozyme in solution at the same concentration. PHIOPs-Lys were demonstrated to effectively inhibit bacterial infections and enhance wound healing in a full-thickness skin wound rat model. This study provides a novel pathway for prolonging the enzymatic activity and antibacterial effects of lysozyme.
研究领域:
生物材料学
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微生物学
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药剂学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Yucong Shi,Bin Li,Jianhua Yuan,Yong Qin,Lei Zhou,Junzhen Zhong,Wei Liu,Chengmei Liu
This study constructed a sodium alginate (SA)-based temperature-responsive emulsion film. The addition of 6 % of whey isolate protein fibre (WPF) and glycyrrhizic acid (3:1) prepared stable emulsions and endowed it temperature-responsive release capability at 4–45℃. The incorporation of prepared emulsions (10–50 % v/v) into SA-based films (E-SA) improved the UV-blocking and antioxidant properties, while it decreased the breaking strength and water solubility. Especially, 30 %E-SA film exhibited best elongation at break water vapor barrier performance, and temperature-responsive release capability. In preservation experiments, the 30 %E-SA film had excellent effect on maintaining pH, soluble solids and V C content of grapes. Especially, the weight loss of grape treated with 30 %E-SA film (19.88 %) was reduced by 44.50 % compared to control grapes at 45°C after 6 d. Therefore, the emulsion-based films prepared are expected to provide an attractive method for preserving grape freshness in different temperature environments .
研究领域:
食品科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Healthcare Materials
·
2021
·Vol. 11
·期 2
·2101659
·
IF 9.933
Yuqiu Wang,Huihui Lu,Maoze Guo,Jianlin Chu,Bingbing Gao,Bingfang He
Microneedle (MN) dressings, with the ability of transdermal drug delivery, have played an essential role in the field of wound healing. However, patients may still feel uncomfortable when sensitive unhealing wounds are pieced by strong needles. Here, inspired by the structure of mosquito mouthparts, which possess a fixation part and a liquid-transferring part, we present a novel MN wound dressing with superfine needle tips, personalized pattern design, programmable needle length, and multiple mechanical strengths for intelligent and painless drug delivery. By simply stretching the silicone rubber (Ecoflex) molds before engraving, superfine MNs can be formed in the restored molds. Meanwhile, by utilizing intelligent image recognition, precise treatment for irregular wounds is achieved. Notably, combined with temperature-responsive N -isopropylacrylamide (NIPAM) hydrogel and inverse opal (IO) photonic crystals (PCs), a controllable drug release system has been achieved on MN dressings. Moreover, the performance of the MN dressing in facilitating wound recovery has been demonstrated by full-thickness skin wounds of a mouse model. These results indicate that novel personalized and programmable MN wound dressings are of considerable value in the field of wound management.
研究领域:
生物医学工程
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材料科学
·
医学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Fengjiao Lai,Feng Yan,Pengju Wang,Shubin Wang,Shun Li,Zuotai Zhang
The design of stable heteropolyacid (HPA) catalysts with strong Brønsted acidity and mild Lewis acidity is crucial for the efficient conversion of renewable biomass to value-added chemicals. Firstly, a novel strategy was proposed to synthesize the Ce-based HPA of H 5 CeW 12 O 40 . Secondly, the H 5 CeW 12 O 40 was combined with ChCl to form a series of temperature-responsive HPA catalysts (Ch n H 5-n CeW 12 O 40 , n = 1–5), which allowed the catalysts to be applied as soluble catalysts at a temperature >80 °C and be easily separated as an insoluble catalyst at a temperature <80 °C. In the H 2 O/DMSO/MIBK biphasic system, one-pot production of 5-hydroxymethylfurfural (5-HMF) from cellulose was achieved with an excellent yield of 67.5% over ChH 4 CeW 12 O 40 catalysis at 140 °C for 6 h, and other carbohydrates were converted, including fructose (83.1%), glucose (74.2%), sucrose (75.8%), cellobiose (70.2%) and starch (68.7%). Such high efficiency was attributed to the homogeneous catalysis at high temperature, the strong Brønsted acidity of [H 5-n CeW 12 O 40 ] n− , and the appropriate Lewis acidity from Ce(III). Moreover, the temperature-responsive property and the high stability were beneficial for recycling without significant structural change and activity loss.
研究领域:
化学工程
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生物质能
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催化化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）