Journal of the Australian Ceramic Society
·
2023
·Vol. 59
·期 4
·915-922
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IF 1.9
Zhang Jianxiong
ZrO 2 is widely used. However, surface hydrophilicity is harmful to waterproof devices. In this work, epoxy-based polyhedral oligomeric silsesquioxane (POSS) was chemically bonded to ZrO 2 sheet surface for weather-resistant hydrophobicity and anti-adherence property. First, ZrO 2 sheet was modified with hydroxyls, followed by amino modification. Then, surface POSS modification was performed via ring-opening addition. Next, composition and micro-morphology of POSS-treated sheet were clarified. Ultimately, the dependence of water contact angle of POSS-modified sheet on POSS solution treating time was researched, and the highest contact angle of 132.6° was gained by 24-h treating. Acid corrosion, alkali corrosion, and ultraviolet radiation for 48 h were employed to verify good weather resistance with contact angles over 120°. POSS-modified sheet had good anti-adherence capacity. Cooperation of POSS and ZrO 2 was utilized to obtain low surface energy and high surface roughness. This work might help to obtain hydrophobic ceramics as catalyst supports for oil-phase reactions.
研究领域:
材料科学
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表面化学
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DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2025
·
IF 6.3
Xiangbin Sun,Xiaobing Ma,Yufeng He,Pengfei Song,Rongmin Wang
The natural plant essential oil carvacrol exhibits substantial antimicrobial properties. However, its efficacy is significantly compromised following functionalization, thereby limiting its optimal application in polymer science. In this study, a quaternary ammonium carvacrol ester ionic liquid monomer was synthesized utilizing the ionic liquid technique. Subsequently, a series of cyclodextrin-grafted poly(quaternary ammonium carvacrol ester) polymer nanospheres were prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization. The controllability offered by RAFT polymerization enables precise loading of carvacrol small molecules, representing a significant breakthrough for the incorporation of carvacrol into polymers. Particularly noteworthy is the CD-DM x formulation, which demonstrates exceptional antibacterial efficacy against both E. coli and S. aureus . This is attributed to the synergistic interaction between carvacrol and cationic components, resulting in a 100% antibacterial ratio. Additionally, the labile nature of the betaine ester bonds with carvacrol and cations facilitates the controlled release of carvacrol from the CD-DM x matrix while preventing its deactivation during functionalization. This property facilitates the transition of CD-DM x from exhibiting antibacterial properties (offense mode) to demonstrating anti-protein adhesion properties (defense mode). Furthermore, cytotoxicity assessments and electrospinning studies have demonstrated the biocompatibility and potential applications of CD-DM x in medical protective equipment. In summary, we have not only proposed a strategy for the efficient utilization of natural carvacrol essential oil but has also developed a green, environmentally friendly cationic essential oil-based antibacterial agent that is well-suited for medical applications.
研究领域:
材料科学
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生物医学工程
·
高分子化学
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DOI
高影响因子
Materials
·
2022
·Vol. 15
·期 23
·8634
·
IF 3.748
Wuyifan Zhou,Feng Yang,Ling Yuan,Yangmin Diao,Ou Jiang,Yuan Pu,Yong Zhang,Yong Zhao,Dan Wang
Superhydrophobic coatings on iron surface have a wide application potential in medical instruments, chemical industrial equipment, and house construction. In this work, we developed a multi-functional superhydrophobic coating on iron surface with a high air/water contact angle of 162.3° and a low sliding angle of 2.4°. The construction of superhydrophobic coating involves physical friction processing to fabricate micropatterns and structures, followed by annealing treatment and surface chemical modification with 1H,1H,2H,2H-tridecafluoro-n-octyltrimethoxysilane. The obtained organic–inorganic composite material exhibited considerable optimization potential to anti-condensation performance. The low surface energy of the superhydrophobic coating also leads to poor adhesion of water, dust, and blood platelets, which is beneficial for applications in medical devices. The electrochemical and impedance test results demonstrated that the superhydrophobic surface provided effective corrosion protection for the iron substrate, with an 84.63% increase in corrosion protection efficiency. The experimental results showed that the anti-bacterial ratios reached 90% forE. coliand 85% forS. epidermidis, while the anti-bacterial ratios of ordinary iron were only 8% forE. coliand 15% forS. epidermidis, respectively.Keywords:iron surface treatment;superhydrophobic coating;anti-corrosion;anti-adhesive;anti-bacterial
研究领域:
材料科学
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表面工程
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腐蚀科学
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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
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Tong Li,Guang Wen,He Zhao,Yang Qu,Han Wu,Yingchuan Sun,Jianwu Zhao,Wen Li
The undesired adhesion between the dura mater and surrounding tissues is a great challenge in the clinical treatment of spinal stenosis and disc herniation, and this condition can typically lead to failed back surgery syndrome (FBSS) and persistent or recurrent lumbosacral pain or sciatica. Here, a protein-based supramolecular adhesive featured with wet adhesion and on-demand anti-adhesion via non-covalent interactions between anionic glycyrrhizic acid (GA) nanofibers and N-α-lauroyl-arginine ethyl ester hydrochloride (LAE) dispersed zein colloid (zein-LAE). By controlling the crosslinking density of the zein-LAE/GA supramolecular polymers, the adhesion and anti-adhesion could be conveniently regulated. In detail, suitable amount of GA improved the adhesion strength of the zein-LAE/GA supramolecular adhesives, whereas excessive GA caused the surface curing and anti-adhesion. It was proposed that the anti-adhesion outcome was attributed to the enhanced cross-linking density and Young’s modulus of the supramolecular polymers, and the declined freedom of the binding groups. The excellent biocompatibility and biodegradation enabled the zein-LAE/GA supramolecular polymers to function as easy-to-implement Janus implants for the in vivo prevention of postoperative epidural adhesion in a rat model. In conclusion, the physical barrier of the Janus implant together with the anti-oxidation and anti-inflammatory effects of the GA component played a synergistic role in achieving epidural anti-adhesion.
研究领域:
生物材料学
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医学工程
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神经外科研究
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DOI
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 36
·20715-20727
·
IF 3.049
Hong-Li Zhang,Bing-Hua Liu,Mingbo Yang,Pan Zhang,Jing-Gang Gai
A novel sulfaguanidine (SG)-modified polyamide thin-film composite (TFC) nanofiltration (NF) membrane was constructed by the strategy referred to as co-solvent assisted interfacial polymerization (CASIP), which involves the respective interfacial polymerization (IP) of piperazine (PIP) and SG with trimesoyl chloride (TMC) on porous polysulfone (PSf) supports. CASIP enables the formation of a defect-free thin dense active layer and favors higher water permeance up to 79.0 L m−2 h−1 with rejection above 98.3% for Na2SO4. The resulting PA membrane also demonstrates a high flux recovery ratio of nearly 98.9% to bovine serum albumin protein after being cleaned. More importantly, the current membrane shows excellent anti-adhesive and antimicrobial performances against Gram-negative Escherichia coli, Gram-positive Bacillus pumilus LDS.33 and Aspergillus parasiticus JFS. This promises great potential application of the PA membrane for practical water/wastewater treatment. The prospect of using the co-solvent mediated SG-modified layer as a next-generation anti-fouling/antimicrobial membrane is very encouraging.
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
OPTICS AND LASER TECHNOLOGY
·
2023
·
IF 5
Jie Liang,Chao Shan,Mengda Tian,Hao Wang,Tao Hu,Qing Yang,Feng Chen
Transparent surfaces with anti-pollution and anti-adhesive properties show promise for optical windows. However, there is currently no effective way to create glass surfaces that are impervious to highly viscous and sticky oils, like crude oil. In this research, an electrical-heating silica glass with resistance to high viscosity oil was prepared using a femtosecond laser process. An inner micro-channel system was fabricated by the femtosecond laser wet etching method, and the surface was treated to be superhydrophilic/underwater superoleophobic through femtosecond laser irradiation. The prepared sample could be electrically heated by its internal heating unit, which could reduce the viscosity of the crude oil. Thus, the prepared sample is resistant not only to typically low-viscosity oils, but also prevents the adhesion of crude oil, which would be widely applied in anti-pollution optical windows.
研究领域:
材料科学
·
光学工程
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Gansheng Liu,Zhiyou Pu,Christine Matindi,Zhenyu Cui,Hong Wang,Jianhua Yang,Jianxin Li
Three nanofiltration (NF) membranes (positive charge, negative charge and near charge neutrality) were fabricated to investigate the anti-adhesion mechanism. Among them, the NF membrane with positive charge was synthesized through an electrophilic substitution reaction between the amino group of polyethyleneimine (PEI) and the chloromethyl groups of chloromethyl polysulfone (CMPSf) on a supporting polysulfone (PSf)/CMPSf blend membrane. The NF membrane with negative charge was fabricated through polycondensation using 1, 3, 5-benzenetricarbonyl trichloride (TMC) as a reactive monomer on the positive charge NF membrane. Subsequently, the near charge neutral zwitterion NF membrane (ZNF) was prepared by grafting 3-((2-aminoethyl) dimethylammonio) propane-1-sulfonate (sulfobetaine) (ADSS) onto the negative charge NF membrane. The anti-adhesion behaviors of the NF membranes during the dye selective separation were analyzed by Atomic force microscopy (AFM) and quartz crystal microbalance with dissipation (QCM-D). The results demonstrated that the near charge neutral ZNF membrane displayed a higher dyes rejection (>94.4 %) and higher flux recovery rates (>88.1 %) than charged NF membranes. Meanwhile, the near charge neutral ZNF membrane demonstrated the lowest amounts of dye deposition compared with charged NF membranes, such as reactive blue 4 (R4) for 509.9 ng/cm 2 , basic blue 24 (BB 24) for 269.0 ng/cm 2 , rhodamine B (RB) for 197.4 ng/cm 2 ). Additionally, the near charge neutral ZNF membrane with the thicker hydration layer (121.7 nm) displayed weaker interaction forces (−4.8 nN to −7.4 nN) with the dyes than the charged membranes (−10.4 nN to −28.6 nN). Finally, an anti-adhesion mechanism involved charged shielding effect and hydration layer formation was proposed. These observations provide comprehensive insights into the anti-adhesion mechanism of ZNF membrane.
研究领域:
材料科学
·
膜技术
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表面化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2022
·
IF 10.508
Yinsong Si,Taoqing Huang,Huiqi Xie,Min Chen
Artificial brochosome-shaped microspheres closely mimicking natural brochosomes are highly desired however challenging to synthesize. Herein silica brochosome-shaped microspheres (SiO2 BMs) are successfully synthesized by simply adjusting the NH4OH/p-xylene ratio. The obtained BMs, with a diameter of 530 nm and highly accessible open pores of ∼130 nm, demonstrate high similarity to natural brochosomes in size, shape, and pores geometry. A mechanism of droplets assembly originating from the surface charge transformation of the emulsion droplets is proposed by carefully investigating the in situ dynamic evolution of BMs intermediates. The priority growth of primary particles at the interface of the adjusting droplets forms the pores wall of BMs with regular distribution. Benefiting from the unique structure, the SiO2 BMs show excellent antiadhesion (superhydrophobic) and antireflection (at least 70% reduction for vertical reflection), indicating the high functional similarity to natural brochosomes. The synthesized BMs demonstrate sufficient load capacity, suggesting great potential in energy conversion and biomedical applications.
研究领域:
材料科学
·
仿生学
·
纳米技术
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 35
·16830-16841
·
IF 4.682
He Miaomiao,Chen Lingdong,Zhang L.,Shen Lixin,Zhen Hui,Wang Longhao,Xu Pinghua,Bao Jiaohui
Functional hydrogels have attracted tremendous interest in biomedical fields. In this study, we prepare hydrogel based on [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl) (SBMA) and 2-hydroxyethyl methacrylate (HEMA), and GelMA acts as crosslinking agent to crosslink the P(SBMA-co-HEMA) molecular chain. The hydrogel exhibits excellent mechanical properties (strength up to 1.21 MPa), fatigue resistance (withstands 50 compression tensile cycles and remains stable), and high transmittance enables visualization of hydrogel dressings. Furthermore, antibacterial experiments proves that hydrogel could significantly resist the adhesion of E. coli. and the hydrogel also has excellent antifreezing and water retention properties. More importantly, in vitro and in vivo assays reveals the hydrogel has excellent biocompatibility and stability, making them competitive candidates for biomedical applications such as wound dressing.
研究领域:
生物医学
·
材料科学
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Pan Gu,Na Fan,Yexin Wang,Jiping Wang,Peter Müller-Buschbaum,Qi Zhong
Linear control of moisture permeability and anti-adhesion of bacteria in a broad temperature region are realized by cross-linking thermoresponsive microgels onto cotton fabrics. The microgels are copolymerized by monomers di(ethylene glycol) methyl ether methacrylate (MEO2MA), (ethylene glycol) methyl ether methacrylate (OEGMA300), and ethylene glycol methacrylate (EGMA) with a molar ratio of 10:10:1. Transition temperatures of PMEO2MA and POEGMA300 are 25 and 60 °C, respectively. Due to the compression of already collapsed PMEO2MA to still swollen POEGMA300, the microgels present a linear shrinkage in a broad temperature region (20–70 °C). Additionally, the contact angle of the microgels stays below 60° even if the temperature is increased to 50 °C, illustrating the reserved surface hydrophilicity. The obtained microgels are cross-linked onto cotton fabrics by 1,2,3,4-butanetetracarboxylic (BTCA). The weight gain ratios (WGRs) are 15% and 30%. The moisture permeability shows an excellent linear increase between 20 and 50 °C when the WGR is 30%, which is attributed to the linear shrinkage of the cross-linked microgels upon heating. Because the moisture permeability is related to the fabric comfort, a linear control of comfort is obtained. In addition, the cross-linked cotton fabrics can realize 96.5% bacterial anti-adhesion at 30 °C as the surface remains hydrophilic. On the basis of these two unique properties, the realized cotton fabrics cross-linked with microgels are promising for application as smart textiles for wound addressing.
研究领域:
材料科学
·
纺织工程
·
生物医学工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Lang Mingjiao,Luo Jianquan,Wan Yinhua,Wang Xinyan,Chen Xiangrong,Zeng Guangyong
Biofouling is inevitable when reverse osmosis (RO) membrane is applied in water treatment. The adhesion and proliferation of microorganisms on the membrane surface severely degrade the performance of RO membrane, including a sharp decrease in permeate flux, a decline in salt rejection, and a shortened service life. Based on the biofouling mechanism, we designed and prepared a dual-functional RO membrane with excellent antibacterial and anti-adhesion properties by simultaneously grafting ionic liquid and sulfonic acid monomers onto the surface of RO membrane using a simple redox radical polymerization. Compared with the pristine membrane, the water flux of the grafted membrane increased by 13.0%, and the salt rejection slightly increased. Meanwhile, the grafted membrane possessed good antibacterial activity against E. coli and S. aureus . The bacterial mortality rates increased from 20.3% and 80.0% of the pristine membrane to 98.2% and 96.1%, respectively. Comparing the changes in membrane flux and rejection before and after bacterial fouling, the grafted membrane had significant advantages over the pristine membrane. The grafted membrane also exhibited excellent antifouling ability towards bovine serum albumin (BSA), humic acid (HA), and sodium alginate (SA). After 10 h of continuous filtration experiment, the flux decline of membrane for HA and BSA solutions was about 7%, for SA solution about 14%. And the grafted membrane showed good long-term stability in the application of tap water purification. This study provides an innovative path for preparing RO membrane with excellent anti-biofouling capabilities.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2024
·
IF 3.2
Yinghui Yuan,Guangli Dong,Yinglin Liu,Lili Tian,Bingyu He,Enliang Zhou,Hong Hao
This study focuses on the surface modification of substrates using a poly(N,N-dimethyl-N-(ethoxycarbonylmethyl)-N-[2′-(methacryloyloxy) ethyl]-ammonium chloride-co-3-(trimethoxysilyl)propylmethacrylate) P(CBMAE-co-TMSPMA) and ethyl orthosilicate (TEOS). By covalently bonding the Si-OH pendant of the copolymer with hydroxyl residues on the material's surface, a stable polymer coating is formed. The properties of P(CBMAE-co-TMSPMA) coatings were evaluated using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscope (SEM), and contact angle (CA) meter. The addition of TEOS allows for the regulation of surface roughness. With the increase of TEOS content, the contact angle of underwater oil first increased and then decreased. The water contact angles were 8°, the underwater superoleophobic contact angle reached 168°, and the number of adherent platelets and Escherichia coli were significantly reduced to 7.5% and 5% on the surface of the coating, respectively. After undergoing simultaneous hydrolysis, the superoleophobic contact angle of P(CBMAE-co-TMSPMA)/SiO 2 coating further increased to 174°. These interesting and robust properties make them promising candidates for biomedical applications. Highlights The underwater superoleophobic coating (contact angles of 174°). The P(CBMAE-co-TMSPMA)/SiO 2 coating with excellent resistance to oil adhesion. Solve the hydroxyl residue problem. The coating resistance to E. coli and platelet adhesion.
研究领域:
材料科学
·
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）