COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
·
IF 4.9
Xianbin Sun,Jing Yu,Xudong Li,Haijun Chen,Yu Gao
Inorganic antimicrobial materials have the advantages of high safety, strong durability, stable antimicrobial performance, and good heat resistance compared with organic antimicrobial materials. In this study, Fe-doped small zinc oxide nanoparticles (FZO-NPs) with different iron contents were synthesized and then modified with 3-aminopropyltriethoxysilane (APTES) and poly(ethylene glycol)−600 (PEG-600) to afford FZO-APs. FZO-APs which were fully characterized can disperse in water with good dispersity and improved stability. In antimicrobial tests, FZO-AP4 displayed excellent antimicrobial effects under 10 min of 365 nm UV light against Gram-negative bacteria Escherichia coli ( E. coli ) and Gram-positive bacteria Staphylococcus aureus ( S. aureus ) with a minimum inhibitory concentration (MIC) of 0.20 and 0.15 mg/mL, respectively. The antimicrobial mechanism studies revealed that the consumption of glutathione (GSH) and ascorbic acid (ASA), and the generation of reactive oxygen species (ROS) could trigger lipid peroxidation (LPO) and ultimately induce ferroptosis in bacterial cells. The cause of the cell wall/membrane damage and the released Zn/Fe ions from the nanoparticles inside the bacterial cells further promote the antimicrobial effects. In addition, FZO-AP4 showed high inhibitory effects on bacterial biofilm formation and significantly disrupted the formed biofilm. Interestingly, higher bacterial biofilm residuals and bacterial survival were found in E. coli than in S. aureus after FZO-AP4 treatment, suggesting a potential link between the quorum sensing (QS) system of the bacteria and their different susceptibility towards FZO-AP4. This study proved the antibacterial effects of small water-soluble FZO-APs which is meaningful for the design and development of new inorganic nano-material for antimicrobial applications.
研究领域:
材料科学
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纳米技术
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微生物学
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生物医学工程
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 46
·51360
·
IF 3.125
He Yang,Zhifang Ma,Xinghua Guan,Zehong Xiang,Yue Ke,Yu Xia,Zhirong Xin,Qiang Shi,Jinghua Yin
Excessive bleeding causes a large part of deaths in wars and accidents. It is necessary to prepare a hemostatic material with excellent performance and low cost through a facile strategy. Herein, the diatomite is modified with (3-Aminopropyl) triethoxysilane (APTES) to endow the aminated diatomite (ADia) with positive charge and interface compatibility with chitosan (CS) and sodium alginate (SA). Then, the facile fabrication of CS/SA/ADia sponge is successfully obtained by cross-linking with calcium ions. Compared to CS/SA sponge, the introduction of ADia further enhances the mechanical properties and hemostatic performance of CS/SA-based sponges. The composite sponges with 30 wt% ADia are demonstrated to possess high biocompatibility, compressive strength, water adsorption, and rapid hemostatic capability both in vitro and in vivo. The hemostatic performance is interpreted by activation of coagulation factors and platelets in intrinsic pathway, promotion of blood cell adhesion and formation of fibrin network. Our work provides an effective strategy to develop rapid hemostatic materials with low cost and high efficiency.
研究领域:
材料科学
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生物医学工程
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止血
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生物相容性
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产品关联
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 90
·73424-73433
·
IF 3.84
Yingchun Wang,Ningwei Wang,Xiaoni Ni,Qianqian Jiang,Wenming Yang,Weihong Huang,Wanzhen Xu
In this study, molecularly imprinted technology, combined with fluorescence measurement and computer simulation, was used to detect contaminant p-nitrophenol. Seven molecular dynamics simulations of molecular imprinting prepolymerization systems were performed to optimize the imprinting shell. Results indicated that the system with a p-nitrophenol (4-NP): 3-aminopropyltriethoxysilane (APTES): tetraethylorthosilicate (TEOS) mole ratio of 8 : 8 : 12 led to the best stable template–functional monomer clusters and the hybrid SiO2 layer with CdS-like clusters on the surface of CdTe was synthesized by a simple reflux procedure. The prepared imprinted materials (CdTe@SiO2-MIPs) on the surface of silica contained CdTe nanoparticles (CdTe@SiO2) by surface imprinting and Stöber method polymerization were characterized by transmission electron microscopy, fluorescence spectroscopy, Fourier-transform infrared spectroscopy, ultraviolet–visible analysis and X-ray diffraction. A linear relationship between relative fluorescence intensity and the concentration of 4-NP was obtained with a limit of detection of 0.08 μmol L−1 and the imprinting factor (IF) was 2.23 which indicated that special binding sites with binding property to p-nitrophenol were created on the surface of the CdTe@SiO2-MIPs materials. Ultimately, the feasibility of the fluorescent materials was successfully evaluated through the analysis of 4-NP in tap water and lake water. The recoveries were above 97.3%.
研究领域:
材料科学
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分析化学
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环境科学
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计算化学
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产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Zhenju Bi,Xinqi Gao,Zhencui Bi,Li Yan,Yafang Lei,Chan Li
The wood used for construction should be able to cope with complex environments, especially water and decay fungi. To enhance the wood’s decay resistance and hydrophobicity, aromatic aldehydes such as vanillin, cinnamaldehyde, syringaldehyde, or protocatechualdehyde were grafted onto wood. The poplar ( Populus tomentosa Carr.) wood was impregnated with (3-aminopropyl) triethoxysilane (APTES) to aminate its cell wall, and then aromatic aldehydes were grafted onto the aminated wood through a Schiff base reaction. The findings indicated that this technique enhanced the leaching resistance of aromatic aldehydes in the wood. Furthermore, the durability level of wood grafted by vanillin or cinnamaldehyde was very durable (mass loss<5 %) even after the leaching test. Modified wood has hydrophobicity, manifested by strong anti-swelling efficiency (ASE), low equilibrium moisture content (EMC), and high water contact angle (>90°, air-dried) in 65 % relative humidity and saturated environments. The characterization of modified wood and its model compounds indicated that aromatic aldehydes were grafted onto the hydroxyl groups of wood through Schiff base under the mediation of APTES. This study obtained an outdoor green building wood with hydrophobic and decay resistance for outdoor use and expanded the application of aromatic aldehydes in wood.
研究领域:
材料科学
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木材科学与技术
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环境科学
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化学工程
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产品关联
DOI
高影响因子
Analytical Methods
·
2019
·Vol. 11
·期 46
·5919-5928
·
IF 2.378
Nasibeh Saeedzadeh Amiri,Mohammad-Reza Milani-Hosseini
A facile and environmental-friendly strategy was used to prepare ratiometric fluorescence sensor-modified mesoporous-structured epitope-imprinted polymer (QDs@SiO2@EMSiO2) for highly sensitive and selective determination of cytochrome c (Cyt c), using Cu-doped ZnS QDs and Mn-doped ZnS QDs as fluorescent dyes. In this sensor, C-terminal and N-terminal nonapeptides were employed as the template molecules, and C18MIMCl was utilized as a template for mesoporous silica. APTES and PTESMIC were utilized as functional monomers and TEOS was applied as the cross-linker. The as-prepared fluorescence sensor displayed great selectivity and sensitivity by merging ratiometric fluorescence methodology with mesoporous silica materials to create one system. The composite was employed for the recognition of Cyt c, which displayed good linearity in the range from 0.4 nM to 200.0 nM with a detection limit as low as 0.15 nM, which was much lower than those of non-mesoporous and single emission composites. The sensor also exhibited outstanding applicability in complex matrices, which enabled its employment for Cyt c tracing in human serum samples without any pretreatment.
研究领域:
分析化学
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材料科学
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生物传感器
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生物技术
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产品关联
DOI
高影响因子
Small
·
2022
·Vol. 18
·期 19
·2200740
·
IF 15.153
Yuhao Geng,Jiazhuang Guo,Huiqing Wang,Si Da Ling,Zhuo Chen,Su Chen,Jianhong Xu
Cesium lead halide perovskite nanocrystals (CLHP NCs) have a wide range of potential applications benefited from the properties of high photoluminescence quantum yield (PLQY), wide luminous gamut, and narrow half peak width. However, due to the ionic nature and sensitivity to moisture, oxygen, or heat, perovskite nanocrystals are too fragile to maintain their crystal structure and optical properties. This work proposes solutions to two key issues in the development of CLHP NCs. First, a productive droplet-based microreactor system is designed to accomplish the scale-up production of CLHP NCs, obtaining sub-gram high-purity nanocrystal powders in a single production process. Second, CLHP NCs which are stable in polar solvents, air environment, and high temperature by using 3-aminopropyl triethoxysilane (APTES) as basic ligand are obtained. Wrapped with Si–O–Si generated by APTES, the CLHP NCs exhibit a longer fluorescence lifetime and higher quantum yield. Especially, the PLQY of CsPbBr 3 @APTES can be stable at higher than 90% for more than 10 days. The Si–O–Si protective layer can also suppress the anion exchange between CsPbBr 3 and CsPbI 3 , maintaining the monochromaticity of nanocrystal luminescence. Eventually, full-spectrum quantum light-emitting diode (QLED) beads with robust nanocrystals are fabricated. The gamut of CsPbX 3 @APTES encompasses 140% of the NTSC color gamut standard.
研究领域:
材料科学
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纳米技术
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光电技术
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产品关联
DOI
PubMed
高影响因子
APPLIED CLAY SCIENCE
·
2021
·
IF 5.467
Fuxing Zhao,Jundong Zhu,Tangping Peng,Hao Liu,Shengzhuo Ge,Huasheng Xie,Le Xie,Chongwen Jiang
Excellent thermal insulating aerogels have broad application prospects in pipeline transportation, aerospace, construction and other fields. However, defects in thermal stability and mechanical are the main factors limiting their use to special environments. In this work, a novel polyimide composite aerogel is successfully synthesized through 3-Aminopropyltriethoxysilane (APTES) functionalized clay halloysite nanotubes (FHal) as inorganic enhancement phase and uniformly embedded in polyimide (PI) aerogels. Functionalization can increase the interfacial compatibility between clay inorganic phase and polyimide acid. The results indicated that FHal with high aspect ratio interacts with PI to form a three-dimensional network structure. The FHal/PI composite aerogels had low shrinkage (21.9%–30.79%), low bulk densities (65.285–71.464 mg/cm 3 ), low thermal conductivities (39.18–42.57 mW/(m·K)), high thermal stability (onset of decomposition above 520 °C) and excellent mechanical property (1.14 MPa, 2.62 times of pure PI aerogel). Therefore, FHal/PI composite aerogels can be used as a promising thermal management material for practical and complex insulation applications.
研究领域:
材料科学
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化学工程
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热管理
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复合材料
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产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2023
·Vol. 34
·期 17
·175601
·
IF 3.5
Jing Fu,Qi-Yan Lv,Yan-Shuai Li,Xiaojie Song,Qi Zhu,Xueling Ren,Hui-Fang Cui
Near-infrared (NIR) persistent luminescence nanoparticles (PLNPs) with high brightness, small sizes, good hydro-dispersivity, and intrinsic surface-functional groups are desirable in biological applications. In this work, Cr3+-doped zinc gallogermanates Zn1+xGa2−2xGexO4:Cr (ZGGC) PLNPs were hydrothermally synthesized via 3-aminopropyltriethoxysilane (APTES) as an additive, or APTES and cetyltrimethylammonium bromide (CTAB) as two co-additives. Addition of APTES not only dramatically enhances the 696 nm NIR luminescence intensity, but also obviously decreases the particle size and introduces amino groups. In particular, the x = 0.1 series ZGGC (ZGGC0.1) with the addition of n moles equivalent APTES (ZGGC0.1-nA) had smaller particle sizes than the x = 0.2 counterpart (ZGGC0.2-nA). The NIR afterglow intensities increased with the APTES introduction. The ZGGC0.2-2.5A sample (also named as ZGGC, Si, -NH2) exhibited maximum luminescence intensities both in solid and aqueous states. With APTES, Si atom is doped and –NH2 groups are modified, the trap depth and density become larger, and the afterglow intensities and decay time are significantly enhanced. More notably, co-addition of CTAB (ZGGC0.2-2.5A-C) (also named as ZGGC, Si, −NH2') further enhances hydro-dispersivity and luminescence intensity, decreases particle sizes, and results in more prominent amino groups. The trap density is drastically higher than that without CTAB (i.e. ZGGC0.2-2.5A). Change of Cr3+ microenvironment in the crystal and more defects introduction contribute to the enhanced brightness. As expected, the ZGGC,Si,-NH2' PLNPs possess excellent biocompatibility, deep tissue penetration and distinguished bioimaging properties, and rechargeability with orange LED light. The ZGGC,Si,-NH2' PLNPs should provide to be an excellent nanomaterial for various functionalization and bioimaging applications.
研究领域:
材料科学
·
生物医学工程
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纳米技术
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光学
·
生物学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 137
·期 45
·49405
·
IF 2.52
Yankun Xie,Weiqu Liu,Liyan Liang,Chunhua Liu,Maiping Yang,Hongyi Shi,Shuo Wang,Fengyuan Zhang
In this study, the silica network and functionalized graphene oxide (GO) were incorporated into the epoxy coating systems, which was aimed to improve the thermal property and corrosion resistance of epoxy coatings. First, tetraethyl orthosilicate (TEOS) oligomers and epoxy hybrid was fabricated through sol–gel method. Then the (3-aminopropyl) triethoxysilane (APTES) modified graphene oxide (FGO) was added into the epoxy hybrid composite to obtain anticorrosion coatings. Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), Raman spectrum, and X-ray photoelectron spectrum were conducted to evaluate the structural information of GO and APTES modified GO nanosheets. The results indicated that the APTES successfully grafted onto the surface of GO sheets. Besides, TGA curves, electrochemical measurements and salt spray test were also carried out to characterize the thermal performance and corrosion resistance of GO based epoxy coatings. The TGA results revealed that the thermal performance of epoxy coating containing silica network and FGO nanofiller (ES/FGO) was significantly strengthened compared to pure epoxy. The initial degradation temperature of epoxy coating was increased from 300 to 343.7°C after incorporation of silica component and FGO. The EIS measurements demonstrated that the impedance modulus of ES/FGO was significantly higher than neat epoxy, which indicated that the corrosion resistance of epoxy was substantially strengthened after introduction of silica component and FGO. The corrosion rate and inhibition efficiency of epoxy composite coatings were also shifted from 1.237 × 10 −7 mm/year and 76.6% (for neat epoxy) to 1.870 × 10 −9 mm/year and 99.6% (for ES/FGO), respectively. The salt spray test also revealed that the silica and FGO can improve the corrosion resistance of epoxy coating. Additionally, the dispersion of GO sheets was also enhanced after the modification of APTES siloxane.
研究领域:
材料科学
·
化学工程
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腐蚀科学
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高分子化学
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产品关联
DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2023
·
IF 3.8
Hammad Saulat,Jianhua Yang,Tao Yan,Waseem Raza,Wensen Song,Gaohong He
Tungsten (W) incorporated mobil-type eleven (MEL) zeolite membrane (referred to as W-MEL membrane) with high separation performance was firstly explored for the separation of oil/water mixtures under the influence of gravity. W-MEL membranes were grown on stainless steel (SS) meshes through in-situ hydrothermal growth method facilitated with (3-aminopropyl)triethoxysilane (APTES) modification of stainless steel meshes, which promote the heterogeneous nucleation and crystal growth of W-MEL zeolites onto the mesh surface. W-MEL membranes were grown on different mesh size supports to investigate the effect of mesh size on the separation performance of the membrane. The as-synthesized W-MEL membrane supported on 500 mesh (25 μm) (W-MEL-500) exhibit the hydrophilic nature with a water contact angle of 11.8˚ and delivers the best hexane/water mixture separation with a water flux and separation efficiency of 46247 L·m −2 ·h −1 and 99.5%, respectively. The wettability of W-MEL membranes was manipulated from hydrophilic to hydrophobic nature by chemically modifying with the fluorine-free compounds (hexadecyltrimethoxysilane (HDTMS) and dodecyltrimethoxysilane (DDTMS)) to achieve efficient oil-permselective separation of heavy oils from water. Among the hydrophobically modified W-MEL membranes, W-MEL-500-HDTMS having a water contact angle of 146.4˚ delivers the best separation performance for dichloromethane/water mixtures with a constant oil flux and separation efficiency of 61490 L·m −2 ·h −1 and 99.2%, respectively along with the stability tested up to 20 cycles. Both W-MEL-500-HDTMS and W-MEL-500-DDTMS membranes also exhibit similar separation performances for the separation of heavy oil from sea water along with a 20-fold lower corrosion rate in comparison with the bare stainless-steel mesh, indicating their excellent stability in seawater. Compared to the reported zeolite membranes for oil/water separation, the as-synthesized and hydrophobically modified W-MEL membranes shows competitive separation performances in terms of flux and separation efficiency, demonstrating the good potentiality for oil/water separation.
研究领域:
材料科学
·
化学工程
·
环境工程
·
膜技术
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Jiawei Li,Xiaojie Yan,Lingmin Yi,Ying Cai,Zhendong Tang
Construction of the superamphiphobic materials and their application is of particular interest both in academia and industrial circles for years. Herein, a novel coating system for fabricating superamphiphobic poly(ethylene terephthalate) (PET) fabrics was reported based on both aminopropyltriethoxysilane (APTES) and environment-friendly perfluorooctyltriethoxysilane (FAS) co-modified SiO 2 nano-particles, 3-Hydroxytyramine hydrochloride (Dopamine), amino-terminated silicone oils and etched PET fabrics via the one-step Schiff-base reaction and Michael addition reaction. The prepared fabrics displayed superamphiphobic properties, with contact angles of various liquids approaching 150°. In addition, the mechanical durability superamphiphobic fabrics were obtained, which were able to withstand 500 cycles of abrasion test, 20 cycles of sand abrasion test or 20 times standard washing. Furthermore, various liquids, including water and high viscous liquids, can easily slide off the surface of the obtained fabrics in a short time at a small angle. The prepared fabric can not only float on water or oil, but also hold up 25.7 times its own body weight things floated on water or 9 times on sesame oil without sinking. This novel and effective coating system can have more potential applications in the development of soft micro-devices working on liquid surfaces, especially on highly viscous liquid surfaces or under the environment with harsh conditions.
研究领域:
材料科学
·
化学工程
·
纺织工程
·
表面化学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
·
IF 3.131
Bowen Zhang,Yufei Wang,Jiao Zhang,Sanyuan Qiao,Zhenzhong Fan,Jiaqi Wan,Kezheng Chen
The application of magnetite (Fe 3 O 4 ) nanoparticles (MNPs) as adsorbent materials in solving wastewater treatment problems has attracted increasing attention. In this work, well-defined 3-Aminopropyltriethoxysilane (APTES) functionalized MNPs (APTES-MNPs) were synthesized by two-step method, in which a simple and scalable polyol method was used to initially synthesize MNPs with relatively large sizes and provide a defect site enriched surface to enable the APTES to coat on Fe 3 O 4 uniformly without using SiO 2 coating. The structure, morphology and properties of the APTES-MNPs were studied by TEM, XRD, FTIR, XPS and MPMS. The APTES-MNPs showed enhanced adsorption capacity towards HPAM due to the presence of high density of amino groups on the surface. Kinetics study revealed that the adsorption process followed the pseudo-second-order model, whereas the equilibrium isotherm data matched well with the Langmuir model. The APTES-MNPs could be rapidly separated from aqueous solution under magnetic field and be repeatedly used up to three cycles without significant loss of adsorption capacity. This new type of APTES-MNPs is expected to be a promising candidate for HPAM removal from aqueous solution.
研究领域:
材料科学
·
环境科学
·
纳米技术
·
化学工程
·
水处理
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）