CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Wen Si,Shaochen Wang,ZhengTing Yu,Xin Dai,Molan Guo,Zhiguang Guo
Photochromism, a reversible color change induced by light exposure, has applications in optical information storage and transmission, chemical sensors, and rewritable systems. However, current photochromic materials face challenges such as high cost, toxicity, slow coloration, low efficiency, and poor durability, hindering their real-world applications. In this study, we designed a tungsten oxide-based photochromic material using hydrothermal and fluorination techniques, resulting in superamphiphobicity, low adhesion, thermal and chemical resistance, as well as UV and abrasion resistance. The superamphiphobicity is attributed to the flower-like hierarchical structure. By controlling the morphology and introducing organic fluorosilane as an electron donor to facilitate rapid electron transfer and proton insertion, we significantly enhanced the photochromism of the modified surface. The modified photochromic material faded within 3 min of UV irradiation and 90 min of heating at 80 °C in air. This development exhibits environmentally friendly, low cost, fast color conversion, scalability for mass production, and adaptability to harsh environments, indicating significant potential for applications in fields such as information security storage and rewritable materials.
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
MACROMOLECULAR BIOSCIENCE
·
2018
·Vol. 18
·期 6
·1800045
·
IF 3.392
Xi Yang,Shihong Shen,Li Guo,Jidong Tan,Henxin Lei,Jianghan Wu,Lei Zhao,Tao Xiong,Youshen Wu,Yilong Cheng,Yanfeng Zhang
The development of inexpensive and highly efficient enzyme-responsive polymers has significantly contributed to targeted drug delivery systems. Here, a superamphiphile with a capability of fluorescent dissociation sensing is designed. It is constructed with negatively charged adenosine 5′-triphosphate (ATP) and negatively charged fluorescein diphosphate (FDP), which are used as fluorescence detection, and a cationic diblock copolymer methoxy-poly(ethylene glycol) 113 - b -poly(2-dimethyl-aminoethyl methacrylate) 70 . Upon addition of calf intestinal alkaline phosphatase, the superamphiphile disintegrates, presumably due to the enzymatic hydrolysis of ATP. This process is accompanied by an increase in the fluorescence emission intensity of fluorescein owing to the hydrolysis of FDP. The in vitro application of the superamphiphile is also proven. Thus, the “turn-on” fluorescence of the superamphiphile serves as a real-time module for detection of the disintegration of superamphiphile.
研究领域:
生物材料学
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药物化学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2024
·
IF 3.7
Liyuan Cai,Jingchun Wu,Miaoxin Zhang,Keliang Wang,Zhao Yang
Phase separation of microemulsions occupies a key position in many applications, such as oil recovery, nanomaterial synthesis, and chemical reactions. Achieving an intelligent response is crucial to microemulsion development and application. For this reason, in this study, CO2-responsive superamphiphilic molecules were developed as rapidly switchable oil-in-water microemulsions. These superhydrophilic molecules with linear structures were produced by electrostatic interaction of stearic acid and aminotrimethyltriazine COSM-1 in a 1:1 molar ratio. The introduction of n-butanol as a cosurfactant in the CO2-responsive microemulsion system resulted in the spontaneous formation of stable microemulsions. The effect of the addition of n-butanol on the carbon dioxide-responsive microemulsion system was investigated, and the optimum amount of n-butanol was determined by optimization. After exposure to CO2 for 30 s, the superhydrophilic molecules decomposed into inactive components at the interface, leading to a complete phase separation of the microemulsion into oil and water phases. The system was purged with N2 at 60 °C for 10 min to remove the CO2, and the phase separation system was transformed into a clear microemulsion, which was then evaluated for its properties. The rapid response and complete demulsification of these surface CNFS superamphiphiles to CO2 suggest that they have promising applications in product separation, microemulsion recovery, and enhanced crude oil recovery.
研究领域:
化学工程
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材料科学
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界面科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Science
·
2022
·Vol. 9
·期 33
·2204382
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IF 17.521
Qiangqiang Sun,Xuanming Hu,Boran Xu,Shiji Lin,Xu Deng,Shaobing Zhou
The ability to control the mobility and function of droplets is fundamental to developing open surface microfluidics. Despite notable progress in the manipulation of droplets, the existing strategies are still limited in functionalizing droplets. Herein, the coupling of droplet motion and functionalization elicited by an invisible charge wall is reported. The charged superamphiphobic surface is overlapped with a conductor to induce free charge, creating the invisible charge wall at the overlapping boundary. The charge wall can trap droplets and polarize them into Janus charged state. It is found that the trapping degree and the charge distribution in the Janus charged droplet depend on the original surface charge on the superamphiphobic surface. The invisible charge wall can also be established at diverse boundary curvatures, allowing to design pathways for droplet manipulations. Furthermore, the enrichment of protein and nanomaterial in the manipulated Janus charged droplet is demonstrated. The strategy provides a potential microfluidic platform with orthogonal functionalities.
研究领域:
微流控技术
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材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2020
·
IF 7.635
Zhen Lei,Zhenyu Li,Meiling Guo,Pei Li,Teng Da,Sicai Wang,Yuanpeng Wu,Yi He,Jingyu Chen
Filtration membranes (FMs), with robust anti-fouling performance, are highly desirable for practical oily wastewater purification but still a challenge to be realized without water pre-wetting procedure. Herein, we demonstrate a novel and effective route to address this challenge by decorating MnO 2-x nanowires on carbon cloth membrane (MCM) via simple hydrothermal method , in which the existence of oxygen vacancies on the outer surface of MnO 2-x nanowires can greatly enhance the H 2 O adsorption capacity even under oil, thus the oil-fouling problem can be solved by simply immersing the oil-polluted membrane into water and shaking. Besides the superamphiphilic performance in air and underwater superoleophobic (underwater oil contact angle > 155° against diverse oils), our MCM also exhibits unexpected under-oil superhydrophilic properties, Moreover, high separation efficiency for diverse oil/water mixtures (>99.8%) and oil-in-water emulsions (>98.3%) have been also achieved based on our product. These outstanding properties make our sample hold a great potential in practical oily/water purification.
研究领域:
材料科学
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环境工程
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 44
·期 38
·16351-16357
·
IF 3.288
Xin Liu,Fengjuan Guo,Yaping Dong,Wu Li
Recently, superamphiphilic materials have attracted significant attention because of their excellent affinity towards both water and oil. In this study, a novel but simple strategy to endow carbon cloth and polyurethane (PU) foam with amphibious superamphiphilicity (i.e., superamphiphilicity simultaneously in air and in a pre-wetted state) has been demonstrated. Results showed that the surface wettability of the carbon cloth changed from hydrophobic to superamphiphilic by increasing the acidification time using HNO3, which manifested the contact angle of 0° for water and oils irrespective of the state (at dry state or pre-wetted with water or oil) under which the surface was put. Subsequently, the superamphiphilic PU foam was fabricated based on a simple acidification method, and possessed an excellent superamphiphilicity with water and oil fluids taking less than 19 seconds to spread completely on the surface when the PU foam was in a dry state or pre-wetted with water or oil. Moreover, the PU foam exhibited a high storage capacity for water and oil, up to 9–12 times of its own weight. The discovery of this superamphiphilic foam will provide a versatile and effective way for the development of superwetting materials and their applications in self-cleaning and anti-fouling fields.
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
ACS Omega
·
2022
·
IF 4.132
Chunpo Gao,Yanan Wang,Jiasheng Shi,Yanyan Wang,Xiaoli Huang,Xilu Chen,Zhiyong Chen,Yunfeng Xie,Yanzhao Yang
Chitosan is a typical hydrophilic biomass building block widely used in material science and engineering. However, its intrinsic amphiphilicity has been seldom noted so far. Herein, a series of glutaraldehyde-crosslinked chitosan cryogels with superamphiphilicity are fabricated at moderately frozen conditions through a freezing–thawing process. The micron-sized porous cryogel samples display a 0° contact angle toward both water and oil, 0° water contact angle under oil, and over 120° oil contact angle underwater. By comparing the wetting behavior of the tablet compressed by pure chitosan powders, the superamphiphilicity of the chitosan sample is proven to be independent on crosslinkers. This special wettability endows the chitosan cryogels with high separation efficiency for various surfactant-stabilized oil-in-water emulsions under continuous flow mode driven by gravity as well as a peristaltic pump.
研究领域:
材料科学
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环境工程
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生物材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Bingjie Wang,Yuxin Wang,Tao Tian,Zhishan Bai
The design and development of multifunctional materials to meet the sophisticated requirements of oily wastewater treatment is an urgent need and remains a great challenge. Herein, a superamphiphilic bio-aerogel (PTGA) with honeycomb-like porous structure was synthesized. The directional and reversible control of interfacial wettability can be achieved by simple pre-wetting process and solvent replacement method. Combined with the advantages of structure and wettability, PTGA was proved to be ideal for high-efficient oil-water mixture separation ( J > 1500 L/m 2 ·h, η > 99.8%), oils absorption ( C abs = 17–26 g/g) and dye selective removal (MO: 73.552 mg/g, MB : 45.876 mg/g). Furthermore, based on the newly developed dynamic separation device and excellent mechanical property of PTGA, enhanced separation of oil-water mixture ( J = 3007 L/m 2 ·h) and synergistic removal of co-existing pollutants (MB: 51.274 mg/g) were realized. Mechanism results indicated that the transition of interfacial wetting properties of PTGA was a multi-stage process, while oil/water separation and dye adsorption were two independent processes. Benefit from facile synthesis and unparalleled characteristics, the designed PTGA promise to be reliable and competitive candidates in wastewater remediation.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2017
·
IF 4.529
Wenhua Ji,Mingming Zhang,Wenjuan Duan,Xiao Wang,Hengqiang Zhao,Lanping Guo
Phytic acid-stabilized Fe 3 O 4 -graphene oxide (GOPA@Fe 3 O 4 ) was assembled by microwave-enhanced hydrothermal synthesis and super-amphipathicity was demonstrated by measurement of dynamic oil and water contact angles. GOPA@Fe 3 O 4 was used as a sorbent for enrichment of eight polycyclic aromatic hydrocarbons (PAHs) from vegetable oils by magnetic solid-phase extraction (MSPE). The extraction-desorption factors were systematically investigated and, under optimum conditions, the super-amphiphilic sorbent achieved wide linear ranges (0.2–200 ng g −1 ), satisfactory precision (3.44–6.64% for intra-day and 5.39–8.41% for inter-day) and low limits of detection (LODs, 0.06–0.15 ng g −1 ) for PAHs. Excellent recoveries (85.6–102.3%) for spiked PAHs were obtained with genuine vegetable oil samples. These results indicate that MSPE using GOPA@Fe 3 O 4 as the sorbent, coupled with high performance liquid chromatography (HPLC), is an efficient and simple method for the detection of low concentrations of PAHs in vegetable oils.
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
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Ping Liu,Siqi Liu,Xinquan Yu,Youfa Zhang
The development of waterborne superamphiphobic coatings is environmentally important, which usually needs long time to fabricate the paints and pre- or post-treatment at high-temperature to cure the coating. Moreover, long chain fluorinated silanes are necessary in the paints to obtain superamphiphobicity. In this study, we prepared a simple waterborne paint only containing nanoparticles and fluorocarbon surfactant in a short time. The coatings were originally superhydrophilic and superoleophobic, but they became superamphiphobic after heating in the air with silanes at 80 ℃ for 15 min. This feature allows it to be used for superamphiphobic treatment of hard porous materials and soft cotton cloth. We found that stable superamphiphobicity could be achieved via various silanes even with one methyl group. It was proved that the silane chemically bonded on the nanoparticles not only triggered the flipping of the fluoric groups outward, but also endowed the stable superamphiphobic state by blocking the flop.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2024
·
IF 4.1
Shujuan Yang,Keyang Mai,Furui He,Haifang Liu,Qingmei Zhu,Yuhong Feng,Gaobo Yu,Jiacheng Li
Insufficient deposition of pesticide droplets is a major factor contributing to ineffective control of agriculture. Improving the deposition of colloidal particle as agricultural delivery system is very important. Herein, supra-amphiphilic soft template was programmed by recognizing host–guest molecules on emulsion droplet surface. The supra-amphiphilic interfacial system possessed self-regulated amphiphilicity by modulating aggregation/disaggregation of supra-amphiphiles responding to redox-stimulus to control interface flexibility/functionalization characteristics of supramolecular colloids. This interface adjustability of hierarchical colloids greatly facilitated their prediction, control of corresponding targeting interfacial interaction responses of leaves. Then hierarchical particles exhibited a topology, pliability that allowed them to adapt to the micro/nanostructures of leaf surfaces, thus facilitating easier passage into the targeted pathogens. In vitro plot experiments, the supra-amphiphilic colloid with flexibility performed greatest antifungal capabilities against Botrytis Cinerea , reaching up to 88.65%, even after multiple rain erosions. Modulating the interfacial interactions towards hierarchical targets technically inspired a new green, sustainable agricultural application.
研究领域:
农业科学
·
材料科学
·
植物病理学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jie Wang,Xuanming Hu,Haiye Feng,Yunxin Tang,Guo Sun,Shiji Lin,Lirong He,Qiangqiang Sun,Shaobing Zhou
Droplet manipulation with specific functionalities expands its practical applications. This study combines droplet motion and reactivity through a dynamic surface potential gradient. A conductor is positioned to approach and partially overlaps the charged path on a superamphiphobic surface from the underside. In the overlapping area, the net charge density decreases, creating a static surface potential gradient around the boundary. Movement of the conductor induces a dynamic surface potential gradient along the printed charge path. Droplet manipulation is achieved through the asymmetric electrostatic forces provided by the dynamic surface potential gradient. The magnitude of the dynamic surface potential gradient can be controlled by the distance between the conductor and the charged superamphiphobic surface. The manipulated droplet is positively charged owing to its contact with and separation from the superamphiphobic surface. The sustained triboelectric process between the droplet and surface enables prolonged and functional droplet manipulation. The charged droplet can directly enable the chemical oxidation processes within the droplet. This provides the conditions for developing a microfluidic manipulation platform with specific functions.
研究领域:
材料科学
·
化学工程
·
生物医学工程
✓ 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）