Polymers
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2021
·Vol. 13
·期 4
·666
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IF 4.329
Xi Yu,Chuang Dong,Wei Zhuang,Dongjian Shi,Weifu Dong,Mingqing Chen,Daisaku Kaneko
We suggest a simple idea of bio-based adhesives with strong adhesion even under water. The adhesives simply prepared via polycondensation of 3,4-dihydroxyhydrocinnamic acid (DHHCA) and lactic acid (LA) in one pot polymerization. Poly(DHHCA-co-LA) has a hyperbranched structure and demonstrated strong dry and wet adhesion strength on diverse material surfaces. We found that their adhesion strength depended on the concentration of DHHCA. Poly(DHHCA-co-LA) with the lowest concentration of DHHCA showed the highest adhesion strength in water with a value of 2.7 MPa between glasses, while with the highest concentration of DHHCA it exhibited the highest dry adhesion strength with a value of 3.5 MPa, which was comparable to commercial instant super glue. Compared to underwater glues reported previously, our adhesives were able to spread rapidly under water with a low viscosity and worked strongly. Poly(DHHCA-co-LA) also showed long-term stability and kept wet adhesion strength of 2.2 MPa after steeping in water for 1 month at room temperature (initial strength was 2.4 MPa). In this paper, Poly(DHHCA-co-LA) with strong dry and wet adhesion properties and long-term stability was demonstrated for various kinds of applications, especially for wet conditions.Keywords:bio-based;wet adhesion;bio-inspired;hot melt adhesive
研究领域:
材料科学
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生物化学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2016
·
IF 7.145
Xiaotong Cao,Jianquan Luo,John M. Woodley,Yinhua Wan
Micropollutants present in water have many detrimental effects on the ecosystem. Membrane technology plays an important role in the removal of micropollutants, but there remain significant challenges such as concentration polarization, membrane fouling, and variable permeate quality. The work reported here uses a multifunctional membrane with rejection, adsorption, and catalysis functions to solve these problems. On the basis of mussel-inspired chemistry and biological membrane properties, a multifunctional membrane was prepared by applying “reverse filtration” of a laccase solution and subsequent “dopamine coating” on a nanofiltration (NF) membrane support, which was tested on bisphenol A (BPA) removal. Three NF membranes were chosen for the preparation of the multifunctional membranes on the basis of the membrane properties and enzyme immobilization efficiency. Compared with the pristine membrane, the multifunctional membrane exhibited significant improvement of BPA removal (78.21 ± 1.95%, 84.27 ± 7.30%, and 97.04 ± 0.33% for NT103, NF270, and NF90, respectively), all of which are clearly superior to the conventional Fenton treatment (55.0%) under similar conditions and comparable to soluble laccase coupled with NF270 membrane filtration (89.0%). The improvement would appear to be due to a combination of separation (reducing the enzymatic burden), adsorption (enriching the substrate concentration as well as prolonging the residence time), and lastly, catalysis (oxidizing the pollutants and breaking the “adsorption saturation limits”). Furthermore, the synergistic effect of the polydopamine (PDA) layer on the enzymatic oxidation of BPA was confirmed, which was due to its enhanced adsorption and electron transfer performance. The multifunctional membrane could be reused for at least seven cycles with an acceptable activity loss, demonstrating good potential for removal of micropollutants.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Xin Ling,Kaifeng Wang,Wang Zhang,Yu Wu,Qingjun Jin,Di Zhang
Electromagnetic pollution has become an increasingly important problem which has drawbacks to both the accurate operation of the electronic facilities and the safety of human beings. To alleviate and eliminate electromagnetic irradiation, it is inevitable to design microwave absorption materials with desirable absorption intensity and broad effective frequency bandwidth. The combination of carbon-based materials and magnetic materials is an adoptable strategy to perform remarkable microwave absorption performance, while the microstructure should not be ignored. Inspired by the electromagnetic response behaviors of the microstructure from the leafhopper, the hetero-microstructure with hollow void is constructed by adopting bimetal ZIF as the precursor, followed by an interfacial tailoring strategy through electrostatic assembling and calcinating process, which enhances the microwave absorption performance by integrating the merits between the components and the micro-structure. The minimum value of reflection loss achieved -76.40 dB at 7.50 GHz under filler loading of 20% with the thickness of 2.92 mm. Besides, the effective absorption bandwidth could be tailored from 3.55 to 18 GHz among different thicknesses as required. The bio-inspired strategy is validated as a promising method, exhibiting great potential in the designing of the next-generation microwave absorber.
研究领域:
材料科学
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电磁学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Rui Feng,Chen Xu,Fei Song,Fang Wang,Xiu-Li Wang,Yu-Zhong Wang
Inspired by Nepenthes pitcher plants, slippery liquid-infused porous surfaces (SLIPS) have recently attracted increasing attention for directional transport and movement manipulation of water droplets. Nevertheless, infused lubricants are generally instable and easy to deviate from such surfaces during applications, resulting in the lost control on the fog capture and motion of droplets as well as serious risk of water safety. Here, a highly stable SLIPS with improved lubricant storage is developed through the structure design of synergistically constructing regular micro-pincushion and nanoparticles. Notably, on the basis of the microstructure, the presence of nano-architecture shows great contribution to obviously increased capillary force as well as suppressed lubricant loss during water collection. Featuring the stable surface-slippery property, the biomimetic SLIPS displays well maintained dropwise coalescence of water from fog and efficient water harvesting performance. The water collection efficiency is as high as 852 mg cm–2 h–1 and is stable within continuous 20 h application. This fundamental illustration of structural synergism can be further applied to construct more new water manipulation and harvesting platforms with stably slippery surfaces/interfaces.
研究领域:
材料科学
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仿生学
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产品关联
DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2022
·
IF 10.753
Dejian Li,Xuemin Chen,Chenrui Liu,Jiang Tian,Feng Li,Yun Liu
In previous works, both tannic acid (TA) and organosilane-based passivators have been proven to possess good inhibition effects on pyrite oxidation, which could effectively prevent acid mine drainage (AMD) generation at the source. However, the hydrophilicity of TA passivation film and the complex coating process of organosilane-based passivators (high temperature conditions were required during the process carried out) may limit their further practical use. Therefore, to achieve the purpose of better coating treatment of pyrite under mild conditions, TA and γ-mercaptopropyltrimethoxysilane (PropS-SH) were introduced to synergistically passivate pyrite in this work. Electrochemistry tests and chemical leaching experiments both confirmed that PropS-SH-TA coated pyrite had better oxidation resistance than raw pyrite and single PropS-SH or TA coated pyrite. Additionally, the analyses of scanning electron microscopy (SEM) measurements and static water contact angle tests demonstrated that a scaly coating was formed on PropS-SH-TA coated pyrite surface, which may be the reason for the significant improvement of its surface hydrophobicity . Finally, the study on the film-forming mechanism of PropS-SH-TA composite passivator displayed that the benzoquinone derivatives formed by TA could copolymerize with PropS-SH through Michael addition or Schiff base reaction, which constructed a dense hydrophobic film on pyrite surface. The newly formed composite film could provide a better oxidation barrier for pyrite based on TA passivation film.
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
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
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IF 15.1
Xueqin Zhang,Qiaoyu Meng,Keqiang Zhang,Rongqi Zhu,Zhaoliang Qu,Ying Li,Rujie He
Ceramics are attractive for structural components because of their excellent load-bearing capacity. Nevertheless, inferior energy-absorbing ability and poor reliability under common quasi-static and dynamic environments, especially under cyclic loading, extremely limit the popularization of ceramic components. The coupling between cellular structures inspired by the light but strong porous trabeculae and core–shell structure in strong and tough natural materials provides a solution for strengthening the load-bearing capacity, energy absorption ability, and cyclic life of ceramic components. Here, we proposed a bioinspired cellular ceramic structure/polyurea (CCS/polyurea) dual-phase architecture via additive manufacturing and simple infiltration technologies. It was demonstrated that the specific load-bearing capacity and energy-absorbing ability of bioinspired CCS/polyurea dual-phase architecture under quasi-static compressive loading were 2.22 and 50.34 times of CCS, respectively. Significantly, it could be repeatedly loaded at 40.28 and 48.82 MPa for over 120 and 8 cycles, respectively. Furthermore, CCS/polyurea dual-phase architecture performed extraordinary cyclic life under dynamic loading. The cyclic lives of CCS/polyurea dual-phase architecture at impact speeds of ∼ 6 and ∼ 12 m/s reached as high as 11 and 2, respectively. This research provides a credible approach to building ceramic-based materials with extraordinary load-bearing capacity, energy absorption ability, and especially remarkable cyclic life.
研究领域:
材料科学
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仿生学
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产品关联
DOI
高影响因子
POLYMER COMPOSITES
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2024
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IF 4.8
Jiongjiong Li,Ying Zhu,Fudong Zhang,Yan Lyu,Xiaona Li,Kuang Li,Dan Tian,Liping Cai,Jianzhang Li
Phenolic resins (PRs) find extensive use in adhesives and constructions, but they suffer from low curing rate and high brittleness. Herein, we drew inspiration from the lobster sclerotization process and proposed a simple approach to fabricate PRs by integrating pyrogallol-functionalized graphene nanoplatelets (PG@GnPs), amine-terminated hyperbranched phosphonitrilic chloride trimer (HPNC), and phenol formaldehyde (PF) resin. The resulting PRs exhibited significant improvements in comprehensive performance. The onset curing temperature decreased from 115.6 to 101.7°C, while the adhesion work increased by 126.5% and the toughness increased by 494%. Additionally, the wet bonding strength increased by 68.7% and the flexural strength increased by 208%. The accelerated curing rate was attributable to the oxidative crosslinking between catechol moieties in pyrogallol and amino groups in HPNC under alkaline conditions, as well as the high reactivity between pyrogallol or amino groups and PF chains. The outstanding mechanical properties were resulted from the synergistic enhancement effects of PG@GnPs and HPNC, which effectively transferred and absorbed energy upon loading. Overall, this work presented an attractive design strategy for developing high-performance and multifunctional polymer composites. Highlights A bioinspired strategy was proposed for preparing advanced phenolic resins. PG@GnPs were produced via a green and low-cost ball milling method. Adhesion work and toughness increased by 126.5% and 494%, respectively. Bonding and flexural strength have improved by 68.7% and 208%, respectively. Significantly accelerated curing rate was achieved.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
Science Advances
·
2024
·Vol. 10
·期 47
·
IF 11.7
Rongrong Pan,Qi Wang,Yan Zhao,Zhendong Feng,Yanjun Xu,Zhuan Wang,Yapeng Li,Xiuming Zhang,Haoqing Zhang,Jia Liu,Xiang-Kui Gu,Jiangwei Zhang,Yuxiang Weng,Jiatao Zhang
Sluggish surface reaction is a critical factor that strongly governs the efficiency of photocatalytic solar fuel production, particularly in CO2-to-ethanol photoconversion. Here, inspired by the principles underlying enzyme catalytic proficiency and specificity, we report a biomimetic photocatalyst that affords superior CO2-to-ethanol photoreduction efficiency (5.5 millimoles gram−1 hour−1 in average with 98.2% selectivity) distinctly surpassing the state of the art. The key is to create a class of catalytic pocket, which contains spatially organized NH2…Cu-Se(-Zn) multiple functionalities at close range, over ZnSe colloidal quantum wells. Such structure offers a platform to mimic the concerted cooperation between the active site and surrounding secondary/outer coordination spheres in enzyme catalysis. This is manifested by the chemical adsorption and activation of CO2 via a bent geometry, favorable stabilization toward a variety of important intermediates, promotion of multielectron/proton transfer processes, etc. These results highlight the potential of incorporating enzyme-like features into the design of photocatalysts to overcome the challenges in CO2 reduction.
研究领域:
化学
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材料科学
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催化
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产品关联
DOI
PubMed
高影响因子
Small
·
2025
·
IF 12.1
Yi Huang,Ruobing Yi,Yu Qiang,Binyou Xie,Min Zhang,Shanshan Liang,Junlang Chen,Shuai Wang,Liang Chen
Intelligent membranes with programmable permeance and precise sieving performance are in high demand for complex water treatment scenarios. Herein, a bioinspired membrane featuring intelligent adaptive 2D nanochannels with outstanding molecule sieving performance is reported. In particular, a protein-mimetic 2D nanochannel with pH-responsive characteristics is constructed by introducing sodium alginate (SA) molecular chains into GO laminates. The conformational transformation of SA chains under varying pH conditions enables adaptive regulation of the 2D channel size and selective molecular transport. The resulting GO-SA membrane possesses outstanding water permeance up to 122.67 L m −2 h −1 bar −1 , along with a high sieving response factor of 50.12. Besides, it is discovered that the introduction of multivalent Ca 2+ ions can stabilize the membrane structure, thereby “locking” the pH-responsive behavior. Based on this, the water treatment system is designed can not only realize the multistage separation of dye molecules, but also enable the recovery and recycling of acid and alkali. This strategy provides insights for designing intelligent membranes with gated responses.
研究领域:
材料科学
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环境工程
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生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Research
·
2023
·
IF 11
Jun Wu,Yinghui Li,Shengshun Duan,Zhehan Wang,Xu Jing,Yucheng Lin,Di Zhu,Wei Lei,Qiongfeng Shi,Li Tao
Temperature sensing is of high value in the wearable healthcare, robotics/prosthesis, and noncontact physiological monitoring. However, the common mechanic deformation, including pressing, bending, and stretching, usually causes undesirable feature size changes to the inner conductive network distribution of temperature sensors, which seriously influences the accuracy. Here, inspired by the transient receptor potential mechanism of biological thermoreceptors that could work precisely under various skin contortions, we propose an MXene/Clay/poly(N-isopropylacrylamide) (PNIPAM) (MCP) hydrogel with high stretchability, spike response, and deformation insensitivity. The dynamic spike response is triggered by the inner conductive network transformation from the 3-dimensional structure to the 2-dimensional surface after water being discharged at the threshold temperature. The water discharge is solely determined by the thermosensitivity of PNIPAM, which is free from mechanical deformation, so the MCP hydrogels can perform precise threshold temperature (32 °C) sensing under various deformation conditions, i.e., pressing and 15% stretching. As a proof of concept, we demonstrated the applications in plant electronics for the real-time surface temperature monitoring and skin electronics for communicating between human and machines. Our research opens venues for the accurate temperature-threshold sensation on the complicated surface and mechanical conditions.
研究领域:
材料科学
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生物医学工程
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电子皮肤
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Qiong Hu,Yilin Luo,Xiaojing Cao,Zhuohua Chen,Yanyu Huang,Li Niu
Sensing of ultralow-abundance nucleic acids (NAs) is integral to medical diagnostics and pathogen screening. We present herein an electrochemical method for the highly selective and amplified sensing of NAs, using a peptide nucleic acid (PNA) recognition probe and a bioinspired electro-RAFT polymerization (BERP)-based amplification strategy. The presented method is based on the recognition of target NAs by end-tethered PNA probes, the labeling of thiocarbonylthio reversible addition–fragmentation chain transfer (RAFT) agents, and the BERP-assisted growth of ferrocenyl polymers. The dynamic growth of polymers is electrochemically regulated by the reduction of 1-methylnicotinamide (MNA) organic cations, the redox center of nicotinamide adenine dinucleotide (NAD+, coenzyme I). Specifically, electroreduction of the MNA cations causes the fragmentation of thiocarbonylthio RAFT agents into radical species, triggering the polymerization of ferrocenyl monomers, thereby recruiting plenty of ferrocene electroactive tags for amplified sensing. It is obvious that the BERP-based strategy is inexpensive and simple in operation. Benefiting from the high specificity of the PNA recognition probe and the amplified signal by the BERP-based strategy, this method is highly selective and the detection limit is as low as 0.58 fM (S/N = 3). Besides, it is applicable to the sensing of NAs in serum samples, thus showing great promise in the selective and amplified sensing of NAs.
研究领域:
医学诊断
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生物化学
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分析化学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
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IF 7.504
Xin Liu,Qin Zhang,Zijian Gao,Ruibin Hou,Guanghui Gao
Bioinspired strategies have drawn much attention for designing intelligent hydrogels with promising performance. Herein, we present a bioinspired adhesive hydrogel driven by adenine and thymine, which are the basic units of DNA. The adhesive hydrogel exhibited promising adhesive property for the surface of various solid materials, including muscle tissues, plastics, rubbers, glasses, metals, ceramics, carnelians, and woods. The maximum peeling strength of hydrogels was 330 N m–1 on aluminum, superior to that of PAAm hydrogels with 70 N m–1. The strong adhesive behavior remained more than 30 times repeated peeling tests. Moreover, the swelling behavior, morphological structure, mechanical strength, and peeling adhesive strength were also investigated and confirmed the formation and various characteristics of adhesive hydrogels driven by adenine and thymine. Thus, the biomimetic strategy to design promising adhesive hydrogels can provide various opportunities in tissue engineering, such as wound dressing, bioglues, and tissue adhesives.
研究领域:
生物材料学
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组织工程学
✓ 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）