Nanomaterials
·
2023
·Vol. 13
·期 1
·202
·
IF 5.3
Jingyu Li,Yang Zhang,Haichao Zhao,Guoxin Sui
The excessively leached metal ions from traditional metallic antimicrobial nanoparticles are harmful to biological and human tissues. Metal-organic frameworks (MOFs) coordinating bioactive metal ions to organic bridging ligands can potentially address this issue, avoiding the excessive leaching of metal ions and simultaneously exhibiting high effective antibacterial activities. Here, we report the preparation of a 2-dimensional leaves-like zeolitic imidazolate framework (ZIF-L) for potential antibacterial and anti-algae applications. The ZIF-L nanosheet exhibits complete inactivation ofEscherichia coli(phosphate buffer saline: 4 h) andBacillus subtilis(seawater: 0.5 h). The ZIF-L/epoxy composite has excellent antibacterial effect, poisoning effect and anti-adhesion effect on a variety of marine algae. It is worth noting that the removal rate (Escherichia coli) for ZIF/epoxy composite can be reached to 90.20% by only adding ZIF-L (0.25 wt%). This work will inspire researchers to develop more metal-organic frameworks materials for applications in the antibacterial and anti-algae fields.Keywords:ZIF-L;two dimensional;antibacterial;anti-algae
研究领域:
材料科学
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生物医学工程
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环境科学
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产品关联
DOI
PubMed
高影响因子
Coatings
·
2023
·Vol. 13
·期 9
·1643
·
IF 3.4
Dazhuang Wang,Ruotong Liu,Xiaohui Liu,Guangwen Hu,Zhineng Fu,Miao Dong,Liju Liu,Xinrui Lin,Ping Zhang,Junhua Chen,Jianxin Yang,Xinghua Xue
Using a synthetic antifoulant is an alternative technique to using a natural antifoulant for its economical and large-scale production characteristics. In this study, we synthesized allyl 3-oxzo[d]isothiazole-2(3H)-carboxylate (BIT-C) and a series of other heterocyclic compounds, including triazole, pyridine, and thiazole derivatives. These heterocyclic monomers were used to prepare a new series of acrylic polymers by grafting them onto the side chains. The weight change on the 42nd day was less than −0.091 mg/cm−2, indicating that antifoulants can be released into seawater consistently and enduringly. The antibacterial and anti-algae tests revealed that all the polymers had exceptional inhibition rates onE. coli,S. aureus,Chlorella, andChaetoceros curvisetus, with the highest inhibition rates of 99.81%, 99.22%, 92.70%, and 95.42%, respectively. Furthermore, the oyster and barnacle density and algae coverage rate were only about 200 per square meter and 10%, compared to 1800 per square meter and 100% of a blank plate after 90 days hanging in a real marine environment, showing a promising antifouling performance. This work verifies the possibility of a method for grafting different heterocycles on a single polymer to make a series of polymers that can be useful as an environmentally friendly antifouling coating.Keywords:antifouling coating;heterocyclic antifoulant;antibacterial;anti-algae;marine fouling
研究领域:
材料科学
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海洋生物学
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产品关联
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2025
·
IF 9.8
Dong Tian,Kaiming Zhang,Lixin Sun,Zhihao Rong,Dejin Zhang,Lei Liu,Yahui Wu,Chuanhui Gao,Ze Kan,Yuetao Liu
The development of silicone-based superhydrophobic coatings is highly desirable for antifouling applications. However, achieving durable coatings remains challenging. Superhydrophobicity is often lost after mechanical damage or microorganism penetration, which compromises the static antifouling ability. Herein, we propose a straightforward strategy for fabricating a silicone coating (F-PIBO-40 %) based on a simple condensation reaction between a novel silane telomer (F-PIBO) and α,ω-dihydroxypolydimethylsiloxane (PDMS). Moreover, nano-sized silica particles (SiO 2 ) were uniformly incorporated to construct micro-nano rough structures and enhance the durability. The mechanical and environmental durability, self-cleaning, antibacterial and anti-diatom performance were comprehensively characterized. The results revealed that even after 400 damage cycles (8000 cm of wear), the contact angle remained above 165°. The superhydrophobic surface could be simply renewed through friction, minimizing the cost of use and replacement. Furthermore, the coating retained its superhydrophobic properties after exposure to UV radiation, hot/cold temperature cycling, and immersion in various polar and non-polar solvents. The synergistic effects of the isobornyl groups and the superhydrophobicity contributed to the excellent self-cleaning, antibacterial, and anti-diatom performance. We believe that this work provides a new approach for the preparation of multi-environmentally reliable, durable, and surface-renewable superhydrophobic antifouling coatings.
研究领域:
材料科学
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生物学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2019
·
IF 3.973
Kang Feng,Chunhua Ni,Liangmin Yu,Wenjun Zhou,Xia Li
A novel indole derivative (N-(1 H -2-phenyl-indole-3-ylmethyl) acrylamide, NPI) synthesized by a Friedel-Crafts alkylation reaction was identified using IR spectroscopy, 1 H NMR, 13 C NMR and elemental analysis. The inhibitory effect of this novel indole derivative on bacteria and marine algae was studied. The results showed that the inhibition ratios of the indole derivative against Escherichia coli and Staphylococcus aureus were 95.93% and 94.91%, respectively, and the indole derivative possessed prominent inhibitory activity against Phaeodactylum tricornutum , Nitzschia Closterium and Skeletonema costatum . These findings indicate that the indole derivative has high biological activity. Subsequently, the indole derivative was introduced to acrylate resins by free-radical polymerization. The resulting acrylate resins were subjected to self-polishing, anti-algal and antifouling test, the results of which indicated that acrylate resins containing the synthesized indole derivative could exhibit significant antifouling properties because of the combination of the biofouling resistance of the indole derivative and the self-polishing properties of acrylate. This work provides an academic foundation for studying environmentally friendly and highly efficient antifouling coatings.
研究领域:
海洋生物学
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材料科学
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环境科学
✓ 已验证
DOI
高影响因子
Advanced Science
·
2023
·Vol. 10
·期 25
·2300569
·
IF 15.1
Jing Hu,Effiong Kokoette,Caicai Xu,Shitao Huang,Tao Tang,Yiyi Zhang,Muyuan Liu,Yuzhou Huang,Shumiao Yu,Jie Zhu,Marianne Holmer,Xi Xiao
Harmful algal blooms (HABs), which are promoted by eutrophication and intensified by global warming, occur worldwide. Allelochemicals, which are natural chemicals derived from plants or microbes, are emerging weapons to eliminate these blooms. However, the cost and technical challenges have limited the discovery of novel antialgal allelochemicals. Herein, the decomposition of agricultural straws is manipulated by white-rot fungi and achieved elevated antialgal efficiency. The transcriptomic analysis reveals that nutrient limitation activated fungal decomposition. By using a comparative nontarget metabolomics approach, a new type of allelochemical sphingosines (including sphinganine, phytosphingosine, sphingosine, and N -acetylsphingosine) is identified. These novel natural algaecides exhibit superior antialgal capability, with as high as an order of magnitude lower effective concentration on blooming species than other prevalent allelochemicals. The co-expression relationship between transcriptomic and metabolomic results indicate that sphinganine is strongly correlated with the differentially expressed lignocellulose degradation unigenes. The algal growth suppression is triggered by the activation of programmed cell death, malfunction of algal photosystem and antioxidant system, the disruption on CO 2 assimilation and light absorption. The sphingosines reported here are a new category of allelochemicals in addition to the well-known antialgal natural chemicals, which are potential species-specific agents for HABs control identified by multi-omics methodology.
研究领域:
环境科学
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微生物学
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植物化学
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产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Hao Yang,Yi Liu,Hao Chen,Hua Li
Marine biofouling is an important factor that affects the service life of marine equipment. In this work, phenol source capsaicin-mimicking N-(4-hydroxy-3-methoxy-benzyl) acrylamide, two amine sources, 3-aminopropyltriethoxysilane (APTES) and furfurylamine (FFA), together with paraformaldehyde were used to prepare two benzoxazine coatings, P(HA) and P(HF). By reaction with iodomethane, the quaternary ammonium group was introduced into the N position of the oxazine ring. Quaternarily ammonified benzoxazine coatings P(HAI) and P(HFI) show exciting antibacterial performance compared to that of the untreated benzoxazine coating. The P(HFI) coating exhibited 93.8%, 96.4%, 99.9%, and 99.9% killing rates for Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus subtilis, respectively. The quaternary ammonization treatment also precipitated further enhanced anti-alga activity and excellent real-sea antifouling performances. However, the introduction of the ionic groups hindered the thermal polymerization of benzoxazine, leading to more defects on the coating surface, resulting in corrosion resistance that was poorer than that of HA and HF as detected from electrochemical corrosion and neutral salt spray experiments. The corrosion current density of the P(HA) and P(HF) coatings is 2 orders greater than that of the P(HAI) and P(HFI) coatings. Our results shed light on developing new quaternary ammonization treatment routes for polymeric coatings for the desired functions.
研究领域:
材料科学
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海洋生物学
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微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Wang Yifan,Dong Wenjian,Yan Xuefeng,Li Xia,Yu Liangmin
Tin-free self-polishing antifouling coatings are prevalent today. However, its high Cu 2 O content endangers the marine environment. Leveraging the fluorescent properties of coating to prevent fouling is an environmentally friendly antifouling coating development. In this paper, four unreported fluorescent structural carbazole amide derivatives (FSCAD) were synthesized by Friedel–Crafts alkylation reaction. Their fluorescence, antibacterial, and algal inhibition properties were examined. The fluorescent properties test results showed that the four FSCAD exhibited high fluorescence properties. The results of antibacterial test and anti-algae growth test showed that the maximum bacterial inhibition rate can reach 90%, and the growth inhibition rate of three kinds of microalgae can reach more than 75%. It was added to the antifouling coating system as an antifouling agent instead of the traditional antifouling agent Cu 2 O. The abrasion rate, contact angle, surface morphology, and roughness of the coatings were determined by dynamic simulation experiments, and the antifouling properties of the coatings were evaluated by the anti-algae sedimentation test and marine environment antifouling experiments. The results of dynamic simulation experiments showed that adding FSCAD does not affect the wettability and surface state of the coating. Anti-algae sedimentation test exhibited that marine antifouling coatings with FSCAD showed excellent inhibition on the sedimentation of microalgae. The anti-fouling performance of the coating was tested in the marine environment antifouling experiments. The results showed that the coating exhibited excellent anti-fouling performance, with minimal biofouling was attached to the surface of the coating. Especially, the antifouling performance with compound A was better than that of chlorothalonil. Graphical abstract
研究领域:
材料科学
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海洋生物学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2024
·
IF 5.4
Xu Chang,Shi Xiaohui,Zhang Zhijia,Zhou Wenjun,Zhang Songsong,Wang Guojun,Wang Qiang,Ma Teng,Wang Lin,Wei Hao,Mu Minhao
The undesirable and inevitable adhesion of marine organisms on submerged surfaces has seriously affect the environment, economy and society, so emerging and promising strategies for antifouling are required. Here, the novel and environmental strategy of the antibacterial and antialgal materials was proposed for the application of the antifouling coating without releasing harmful substances. The environment-friendly antifouling agent , the capsaicin derivative N-(2,5-dihydroxy-4-acrylamide meth-ylbenzyl)acrylamide (PHABA), was modified to the molecular chain of the polyurethane . The best tensile strength was up to 23.5 MPa of PUP-25% and the elongation at break was 415% of PUP-25%. The excellent wear resistance (300 wear cycles) and chemical solution resistance (H 2 SO 4 , NaOH, and NaCl solutions) revealed the applicability of the coating. PHABA would migrate to the surface of the polyurethane coating with time and enhanced the antibacterial and antialgal properties of the coating. PUP-25% prevented more than 90% of bacterial and algal adhesion, indicating the potential application of the antifouling coating.
研究领域:
材料科学
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海洋生物学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 39
·28596-28607
·
IF 3.9
Shuai Kong,Hao Wei,Yan Zhang,Qingqing Rao
Slippery liquid-infused porous surfaces (SLIPSs) inspired by Nepenthes have attracted much attention owing to their potential application in various cutting-edge fields. However, the performance of SLIPSs is impeded by surface damage and lubricant depletion, thereby limiting their further application. Herein, a UV-responsive slippery surface (SMEMG) was fabricated by introducing the UV-responsive functional group coumarin into the polymer side chain through random copolymerization, followed by crosslinking, curing and impregnation with vegetable oil. The self-healing ability and lubricant self-replenishing performance of the SMEMG were investigated. The results show that upon exposure to UV light, the damaged surface substrate can be repaired through a reversible photodimerization reaction between coumarin groups. Meanwhile, the lubricant oil within the bulk of the SMEMG substrate can be extruded to the surface during the photodimerization reaction, facilitating the recovery of surface wettability. The SMEMG exhibited excellent self-cleaning and anti-algal properties as well as durability in a harsh environment, demonstrating its promising application in marine anti-fouling.
研究领域:
材料科学
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表面工程
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海洋技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2025
·
IF 8
Jing Li,Shencheng Fan,Youchao Chen,Denghui Ren,Shilin Deng,Shuyi Deng,Zhenxia Zhao,Jianhua Zhu,Fang Lai
This study aims to efficiently process Spent Cathode Carbon Blocks (SCCB) to achieve resource reutilization. The results indicate that simple detoxification treatments can effectively reduce the concentrations of soluble fluorides and cyanides in SCCB leachate, meeting wastewater discharge standards. Furthermore, modifying SCCB with a nano-SiO 2 composite polydopamine (PDA) and polyhexamethylene guanidine (PHMG) co-deposition coating can promote cement hydration, significantly enhancing the mechanical properties and anti-algae performance of cement mortar. This study hopes to provide a feasible route for the resource reutilization of SCCB, as well as a novel research approach for the development of special cements.
研究领域:
材料科学
·
环境工程
·
土木工程
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2016
·Vol. 41
·期 1
·271-277
·
IF 3.277
Daoyi Jiang,Qingquan Xue,Zhixiong Liu,Jin Han,Xuedong Wu
Novel nanocomposite (NC) hydrogels based on thiol/acetyl thioester groups chelating with silver nanoparticles (AgNPs) were designed and prepared. The AgNPs acted as both cross-linkers to produce stable NC hydrogels and antimicrobials to prevent the algal adhesion on the surface of hydrogels. The amount of AgNPs embedded in the NC hydrogels had a great influence on the mechanical properties of the NC hydrogels. When the feed molar ratio of the silver element to the sulfur element (Ag/S) approached 0.9, the hydrogels showed the highest mechanical properties. The dynamic nature of the interactions between the AgNPs and thiol/acetyl thioester groups endowed these NC hydrogels with interesting rapid mechanical recovery properties. The NC hydrogels containing thiol groups showed better self-recovery performance than the hydrogels with acetyl thioester groups. In addition, the NC hydrogels with AgNPs exhibited good anti-algal performance for Phaeodactylum tricornutum and Chlorella. When the Ag/S ratio exceeded 0.9, there were almost no algae on the surface of the NC hydrogels. Consequently, these hybrid hydrogels have promising applications in marine antifouling coating and the interfaces of biomaterials.
研究领域:
材料科学
·
生物学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2021
·
IF 5.161
Zixu Zhang,Rongrong Chen,Dalei Song,Jing Yu,Gaohui Sun,Qi Liu,Shihui Han,Jingyuan Liu,Hongsen Zhang,Jun Wang
A series of antifouling composite coatings based on guanidine-functionalized graphene (GNG) and self-polishing boron acrylate polymer (BAP) were prepared. Compared to graphene oxide , GNG had more wrinkles on its surface and was more uniformly distributed in the interior and on the surface of BAP, resulting in the tight binding of inorganic and organic compounds at the interface. The BAP/GNG composite coatings exhibited excellent algae anti-adhesion performance. Specifically, the inhibition rate of Phaeodactylum tricornutum reached 99.2%, and high antibacterial rates of up to 94.2% and 95% were obtained for Escherichia coli and Staphylococcus aureus , respectively. This performance is ascribed to the polishing of BPA, exposing the guanidine-functionalized graphene on the surface. On one hand, as a filler, the prepared guanidine-functionalized graphene improved the antifouling ability by adjusting the hydrolysis rate of the antifouling coating. On the other hand, the exposure of guanidine-functionalized graphene and the hydrolysis of the polymer matrix enhanced the antifouling capability. BAP/GNG shows promise as an antifouling coating with potential applications in marine antifouling.
研究领域:
材料科学
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海洋生物学
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生物医学
✓ 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）