COLLOIDS AND SURFACES B-BIOINTERFACES
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2022
·
IF 5.999
Huayao Chen,Hongkai Deng,Ximing Zhong,Hongjun Zhou,Jinghui Zhan,Xinhua Zhou
Nano zinc oxides (ZnO) had aroused enthusiastic attention in bacteriostasis. However, the antibacterial efficiency of the nano ZnO was greatly reduced due to agglomeration during the practical application. Herein, an effective approach to the uniform dispersion of ZnO on montmorillonite (Mt) intercalated by porous silica was reported to improve the antibacterial efficiency. A petal-like silica-clay composite (SC) loaded with ZnO (SC/ZnO) was synthesized, the appropriate ratio of Mt and TEOS to completely exfoliated the Mt sheets was explored, which was 0.88 g Mt and 2 mL TEOS . Benefiting from the microporous silica microspheres , the composites possessed a large specific surface area about 239 m 2 /g and well-dispersed ZnO, with a similar zinc content of Mt-ZnO about 10%. Comparatively, SC/ZnO composites showed enhanced antibacterial activity against Staphylococcus aureus with respect to Mt-ZnO. The results indicated that silica modification provided a promising strategy to improve the bacteriostatic efficiency of "metal oxide-clay" composites.
研究领域:
材料科学
·
微生物学
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DOI
高影响因子
Coatings
·
2021
·Vol. 11
·期 8
·914
·
IF 2.881
Zihao Dong,Ran Li,Yan Gong
With chitosan, nano-TiO2and nano-Ag as raw materials, nano-TiO2and nano-TiO2-Ag were modified by a surface modifier-sodium laurate. Chitosan (CTS), chitosan-nano-TiO2(CTS-TiO2), and chitosan-nano-TiO2-nano-Ag (CTS-TiO2-Ag) composite materials and corresponding films were prepared by a solution co-blending method. Then, the antibacterial performances of the above three types of materials againstEscherichia coli,Staphylococcus aureus, andBacillus subtiliswere compared. Moreover, potato and strawberry weight loss rates, peroxidase activity, and vitamin C contents after different film coating treatments were measured. Compared with CTS films, the CTS-TiO2-Ag and CTS-TiO2composite films both showed better physical properties, and both demonstrated higher antibacterial effects, especially forE.coli. Measurement of physiological indices in fruits and vegetables showed that the freshness-preserving effect of CTS-TiO2-Ag coating films was the most significant. In all, the CTS-TiO2-Ag coating films can actively contribute to the storage of fruits and vegetables at room temperature, and better ensure product quality. Thus, such films are meaningful for research and development of new fruit freshness-keeping techniques and materials.
研究领域:
食品科学
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材料科学
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DOI
高影响因子
Frontiers in Materials
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2022
·
IF 3.985
Feng Yashan,Chang Lei,Zhu Shijie,Yang Yongxin,Wei Baoli,Lv Meng,Wang Jun,Guan Shaokang
The uncontrollable rapid degradation rate of the Mg alloy substrate limited its clinical application, and implant-associated infections have been reported to be the main reason for the secondary surgery of orthopedic implantation. The aim of this study was to produce a multifunctional coating on magnesium-based alloys that have improved corrosion resistance, bioactivity, and antibacterial properties through the preparation of polyelectrolytic multilayers (PEMs) consisting of chitosan (CS) and sodium hyaluronate (HA) on silane-modified strontium-substituted hydroxyapatite (hereafter referred to as Bil (SH + CS)/SrHA). The multifunctional coatings were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). The results showed the polyelectrolyte complex SH/CS layer to be uniformly and tightly attached on to the surface of silane-treated SrHA. At the same time, a potentiodynamic polarization test and hydrogen evolution test showed the Bil (SH + CS)/SrHA coatings to exhibit superior corrosion resistance than bulk Mg-based alloys. The results of the cell–surface interactions revealed Bil (SH + CS)/SrHA coatings to be in favor of cell initial adhesion and more beneficial to the proliferation and growth of cells with the processing of co-culture. In addition, antibacterial tests demonstrated the strong bactericidal effect of Bil (SH + CS)/SrHA coatings against both Escherichia coli (E. coli) and Staphylococcus (S. aureus), suggesting that Bil (SH + CS)/SrHA coatings can successfully achieve multifunctionality with enhanced corrosion resistance, biocompatibility, and antibacterial properties.
研究领域:
材料科学
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生物医学工程
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组织工程
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DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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2022
·Vol. 23
·期 18
·10708
·
IF 6.208
Tianlu Li,Yun Zhao,Minfang Chen
Photo-thermal antibacterial properties have attracted much attention in the biomedical field because of their higher antibacterial efficiency. Through fabricating micro-arc oxidation coatings with different treating current densities set on a Mg-Zn-Ca alloy, the present study tried to systematically investigate and optimize the corrosion resistance and photo-thermal antibacterial properties of MAO coatings. The results indicated that different current densities had great influence on the corrosion resistance and photo-thermal property of the MAO coatings, and a current density at 30 A·dm−2exhibited the best corrosion resistance, light absorption capacity at 808 nm, and photo-thermal capability, simultaneously with good antibacterial activity againstStaphylococcus aureus(S. aureus) andEscherichia coli(E. coli). This photo-thermal property of MAO coatings was probably related to the effect of current density on MgO content in the coating that could promote the separation of photo-generated electron carriers and hinder the recombination of photo-generated electron carriers and holes.Keywords:magnesium alloy;micro-arc oxidation;corrosion resistance;photo-thermal therapy;anti-bacteria
研究领域:
材料科学
·
生物医学工程
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DOI
PubMed
高影响因子
FIBERS AND POLYMERS
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2025
·
IF 2.3
Li Mengmeng,Chi Shan,Liu Cui,Liu Yanming,Huang Xiaohua
Recent advancements in biotechnology and material science have led to the development of fibers infused with biologically active compounds, highlighting their potential in the textile industry. This research focused on creating functional viscose fibers embedded with menthol, a compound recognized for its antimicrobial properties. To address the volatility and insolubility of menthol, microencapsulation technology was employed to enhance its stability and solubility during the fiber production process. Polyurethane was selected as the shell material and the resulting microcapsules were successfully integrated into the viscose spinning process. The resulting fibers demonstrated excellent antimicrobial performance, indicating their promising application in antimicrobial textiles. This research emphasizes the viability of using microencapsulated bioactive compounds to enhance the functionality of textile materials.
研究领域:
材料科学
·
生物技术
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产品关联
DOI
高影响因子
Heliyon
·
2024
·
IF 3.4
Shibin Wu,Jingguang Wang,Zhenze Xie,Chang Du
Nano-TiO 2 photocatalysis technology has attracted wide attention because of its safety, nontoxicity and long-lasting performance. However, traditional nano-TiO 2 has been greatly limited in its application because its wide band gap can only be activated by ultraviolet light (λ < 387 nm). In this paper, nano-TiO 2 was prepared by self-doping method. The synthesized nano-TiO 2 was a single anatase crystal type with a particle size of 10 nm and uniform size. In addition, nano-TiO 2 has high stability and good dispersion. More importantly, nano-TiO 2 exhibits excellent visible light (400–780 nm) activity due to the decrease of bandgap from 3.20 eV to 1.80 eV (less than 2.0 eV) and the presence of a large number of hydroxyl groups on the surface of the nanoparticles. In the antibacterial test, the antibacterial rate of both E.coli and S.aureus was close to 100 % under the irradiation of household low-power LED lamps, showing excellent antibacterial performance, indicating that the prepared nano-TiO 2 has broad application prospects in the field of bactericidal and bacteriostatic.
研究领域:
材料科学
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环境科学
·
生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
·
IF 7.3
Jiayin Li,Guangmeng Chen,Shuaipeng Wang,Jinyue Dai,Shuan Liu,Guangming Lu,Weiwei Zhao,Xiaoqing Liu
Traditional self-polishing marine antifouling coatings are mainly based on thermoplastic acrylic resins and polyurethanes, seawater degradable thermosetting resins are rarely reported. Here, we synthesized a seawater degradable epoxy resin (DIGE) containing pyrrolidone structure as the film former. The degradation rate and antifoulant releasing rate of the antifouling coatings (DIGE-EPs) were controlled by compounding DIGE with the commercial epoxy resin E51 in various mass ratios. The hydrolysis of pyrrolidone structure by ring-opening in weakly alkaline environment increased the hydrophilicity and influenced the electron density of neighboring ester bond electron clouds, which enhanced the hydrolysis of ester bonds. This allowed for the formation of a self-renewing surface. This degradation process was well monitored by surface topography, surface roughness, mass loss and surface water contact angle in the artificial seawater conditions. Antimicrobial tests revealed that DIGE-EP coatings maintained efficient antibacterial properties even after two months of hydrolysis, with the bactericidal rate reaching 99.7 % and 99.9 % against E. coli and S. aureus , respectively. In addition to the role of antifouling agent release from the inside of resin matrix, more importantly, it was related to the intrinsic antifouling property of the resin, resulting from the in-situ formed β-amino alcohol structure during curing and its nice hydrophilicity. Furthermore, the coating had excellent film properties, along with adhesion exceeding 8 MPa and impact strength reaching 90 kg·cm, which met the long-term use requirements. These combined advantages provide valuable insights for developing effective solutions to complex marine biofouling challenges.
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
Foods
·
2025
·Vol. 14
·期 6
·1058
·
IF 5.1
Xingran Kou,Kangning Ma,Xin Huang,Hui Wang,Qinfei Ke
In the process of ginger deep processing, a lot of waste is generated which is rich in biopolymers and active ingredients such as cellulose, starch, gingerol, and gingerol, but its low utilization rate leads to waste of resources. In this study, ginger waste residue, cellulose, and bioactive substances were spun into fiber materials by wet electrospinning technology with 1-butyl-3-methylimidazole acetate ([Bmim]Ac) as solvent. Fiber plasticization and [Bmim]Ac removal were achieved by dynamic deionized water coagulation bath. Scanning electron microscopy (SEM) and tensile strength analysis showed that the obtained GC-1 and GC-2 films have a non-uniform diameter, with a clear fiber structure and strong tensile strength. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) confirmed that cellulose transforms from type I to type II crystal structure, and [Bmim]Ac is effectively removed. The inhibition rate of 6-Shogaol-impregnated GC film againstEscherichia coliandStaphylococcus aureuswas 99%. The experiment of strawberry preservation verified the potential of GC film in food preservation. In this study, the high-value utilization of ginger waste in food packaging was realized by preparing antibacterial electrospun fiber films.
研究领域:
食品科学
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材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2025
·
IF 5.7
Ying Hu,Mingjun Li,Xun Xu,Nan Ma,Jiahao Luo,Xiaoxuan Wu,Qixiang Ping,Xiao Lin,Tingbin Zhang,Chunyong Liang,Lei Yang
Prosthetic joint infection (PJI) remains a significant challenge in clinical applications. It not only impedes the recovery of bone tissue at the site of bone defect but also leads to multiple debridements, long-lasting antibiotic treatment and even secondary replacement. Titanium alloy Ti6Al4V (TC4) is widely used in orthopedic implants due to its excellent mechanical properties and biocompatibility; however, it lacks inherent antibacterial and osteoinductive functions. In this study, a composite coating based on polyvinyl alcohol (PVA) with tissue repair and antibacterial properties was applied on the surface of TC4. A PVA gel coating functionalized with terpyridine and catechol groups (PVA–TP–CA) was synthesized and subsequently complexed with copper (Cu) ions. The differential binding affinities of TP and CA groups to Cu enabled a sustained and controlled release of metal ions. Furthermore, a micro–nano surface structure was fabricated on TC4 using femtosecond laser technology to achieve a micro–nano structure interface and enhanced bonding strength. Biological evaluations demonstrated that the modified surface significantly improved the antibacterial, angiogenic, and osteogenic properties of TC4. These findings indicate that this multifunctional composite coating holds great promise for surface modification of orthopedic implants, offering an effective strategy for preventing PJI while promoting bone regeneration.
研究领域:
生物医学工程
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材料科学
·
组织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Fang Wang,Wenwen Liu,Yumeng Jin,Wenyu Zou,Shouyan Zhu,Hangyu Shen,Xiaoying Wang,Ziqiang Xu,Fangong Kong
The amphipathic property of paper inhibits its applications in cake packaging. Herein, sodium alginate, calcium chloride, and cinnamaldehyde were mixed, and the process was precisely controlled to maintain homogenously aqueous coating solution. Sodium alginate and Ca 2+ chelation is helpful to the intermolecular hydrogen bonding, which improves oil resistance of the coated papers. Kit number of the coated papers were 12 at 30, 45, 60, 75, 90, 105 and 120 °C, and soybean oil resistance time was over 24 h. The coated papers exhibited good biocompatibility, and the bacterial inhibition zones reached 28 ( Escherichia coli ) and 34 mm ( Staphylococcus aureus ). Additionally, the mechanical property, air permeability, ultraviolet and high-energy blue light blocking, and antioxidative property were all improved. Cake preservation results showed that the coated paper inhibited oil penetration and bacterial proliferation. This biomass-based coated papers can be an alternative for grease food packaging.
研究领域:
材料科学
·
食品科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CELLULOSE
·
2024
·Vol. 31
·期 8
·5263-5280
·
IF 4.9
Han Qiuxia,Xu Yanmeng,Zhao Qian,Wang Shiwei,Zhang Chunzhe,Zhang Qiang,Wang Fei,Bai Yu,Chen Yong
The study reports a tactic for superior antibacterial performance on cotton via synergism of complementary functionalities of quaternary ammonium salt and malonylurea-based N -chloramine combined in a silane. Knoevenagel Condensation between 4-(chloromethyl)benzaldehyde and malonylurea formed a product whose chloromethyl group was used to quaternize tertiary amine of N , N -dimethylethanolamine. The O − H of the quaternization product was subsequently alcoholyzed with Si − H of trimethoxysilane. The methoxysilyl groups of the alcoholysis silane were hydrolyzed to silanol ones that condensed with either their own kind or hydroxy groups of cellulose to polymerize into a crosslinked polysiloxane finishing on cotton. Upon chlorination of malonylurea-based N − H bonds, each repeating unit of the polysiloxane has one quaternary ammonium salt and two imide N -chloramine sites. Antibacterial assays against Staphylococcus aureus and Escherichia coli proved that the synergism of quaternary ammonium salt and N -chloramine, a higher efficacy and a broader spectrum arising from their complementary elimination mechanisms and physiochemical features. Biocidal stability and rechargeability of the polysiloxane finishing were both promising due to the robust and hydrophobicity of silicone backbone and the sturdy cyclic N -chloramine. This research presented a general approach for generation of super biocidability on substrates that can react with hydroxy group using silanes to carry complementary functionalities. Graphical abstract
研究领域:
材料科学
·
纺织工程
·
生物医学
✓ 已验证
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2018
·
IF 5.089
Jiawei Wan,Ying Hu,Tingyang Ai,Shuxin Ye,Qing Huang,Qile Yang,Jing Li,Bin Li
The spoilage and weight loss of meat products during storage always results in numerous problems for their commercialization and economic value. An edible thermo-reversible emulgel was prepared in this study, and its application in the preservation of meat products was investigated. The microstructure of the emulgel in liquid and solid forms was characterized. The decreased gel strength of the emulgel compared to the gelatin gel was likely due to the presence of the surfactant. The interaction between eugenol (Eu) and gelatin was mainly due to hydrophobic interactions and was weakened at 4 °C. The results of the physicochemical and antibacterial experiments for the meat products showed that the emulgel effectively controlled the release of Eu on the meat surface; thus, it could significantly inhibit the growth of microorganisms and weight loss in meat, which prolonged the shelf-life of meat for more than 3 days. The transparent emulgel can be easily removed from meat by soaking in warm water (∼40 °C), and it is a promising application for improving the safety and quality of meat products.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）