Surfaces and Interfaces
·
2025
·
IF 6.3
Qiuying Gou,Siqi Zhang,Zexu Hu,Longxuan Gao,Hui Li,Jinjun Yang,Liping Zhu
Poly(ether-ether-ketone) (PEEK) fabric is extensively utilized in aircraft engine noise reduction systems owing to its low nonlinear coefficient, wide operational temperature range, and superior flame-retardant characteristics. However, the insufficient adhesion strength between unmodified PEEK fabric and epoxy resin frequently leads to delamination damage, compromising noise reduction efficacy and posing a risk of device malfunction. Consequently, it is imperative to enhance the surface of PEEK to improve its adhesion with epoxy resin adhesives. In this study, PEEK fabric was subjected to modification through ultraviolet irradiation and plasma treatment, respectively. The findings indicated that both ultraviolet irradiation and plasma treatment significantly increased the concentration of oxygen-containing functional groups on the PEEK surface, thereby enhancing its hydrophilicity and the adhesion strength between PEEK and epoxy resin. However, extended treatment periods resulted in surface degradation, forming an oxidized layer with diminished mechanical properties, which ultimately reduced the adhesion strength between PEEK and epoxy resin. Notably, the cleaning-etching effects of plasma treatment effectively eliminated the degraded layer which has weak interaction force with PEEK, thereby augmenting the bonding strength between PEEK and epoxy resin. Among all the treatments, oxygen plasma treatment for 20 minutes achieved the highest adhesion strength, increasing the lap shear tensile strength from 249 to 618 kPa. This sample also attained an O/C ratio of 0.47 and a water contact angle of 0° at 10 s.
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DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2025
·Vol. 26
·期 10
·4496
·
IF 4.9
Chunyuhang Xu,Siyu Chen,Tiange Liu,Haowen Zhu,Chien-Liang Kuo,Zhuoyu Zhou,Guo Chen,Fion Wei Lin Chin,Xin Yang,Dejian Huang
Antrodia cinnamomea is widely known for its bioactive properties, particularly in anti-cancer, anti-inflammatory, and antibacterial areas. Despite the full use of the bioactive compounds from its fruiting body, high-value residues remain largely underexploited. This study presents a novel one-pot gel formation method, utilizing cinnamomea cellulose-riched residues to create hydrogels as an effective wound-healing dressing. The hydrogels derived from these residues show desirable properties, including non-drying characteristics, antibacterial activity against Staphylococcus aureus ATCC 1768, and cytocompatibility. Residual bioactive compounds, such as Antcin-K, Dehydroeburicoic acid, and (25S,R)-Antcin H, were identified in the residues, adding to the hydrogel’s efficacy. A UVB irradiation model was employed to evaluate the protective effects of the residues on UVB-damaged HaCaT skin cell lines, with an IC 50 of 0.045 mg/mL. The results indicated that A. cinnamomea residue extracts reduced the upregulation of MMP-1, MMP-2, MMP-3, MMP-7, and MMP-9 proteins caused by UVB exposure, suggesting high UV-protective activity. Additionally, antibacterial tests on Staphylococcus aureus strains, including Staphylococcus ATTC 1768, showed promising results, with inhibition zones ranging from 10.64 to 12.11 mm. In summary, Antrodia cinnamomea residue hydrogels combine UV protection with antimicrobial activity, making them a promising candidate for medical applications, particularly as a wound-healing dressing.
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PubMed
高影响因子
Photonics Research
·
2025
·Vol. 13
·期 6
·1544-1553
·
IF 7.2
Can Zou,Qing Liu,Lu Zhang,Xiao Tang,Xiaohang Li,Shuti Li,Shuti Li,Fangliang Gao,Fangliang Gao
This study pioneers a high-performance UV polarization-sensitive photodetector by ingeniously integrating non-centrosymmetric metal nanostructures into a graphene (Gr)/Al2O3/GaN heterojunction. Unlike conventional approaches constrained by graphene’s intrinsic isotropy or complex nanoscale patterning, our design introduces asymmetric metal architectures (E-/T-type) to artificially create directional anisotropy. These structures generate plasmon-enhanced localized electric fields that selectively amplify photogenerated carrier momentum under polarized UV light (325 nm), synergized with Fowler-Nordheim tunneling (FNT) across an atomically thin Al2O3 barrier. The result is a breakthrough in performance: a record anisotropy ratio of 115.5 (E-type, −2 V) and exceptional responsivity (97.7 A/W), surpassing existing graphene-based detectors by over an order of magnitude. Crucially, by systematically modulating metal geometry and density, we demonstrate a universal platform adaptable to diverse 2D/3D systems. This study provides a valuable reference for developing and practically applying photodetectors with higher anisotropy than ultraviolet polarization sensitivity.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2020
·
IF 3.232
Lijuan Huang,Longyan Xiang,Yan Zhang,Yongan Wang,Zhiyong Nie
The simultaneous detection of K + and Tl + can serve as a toxicological diagnostic tool for thallium poisoning. Colorimetric-reaction-based nanoprobes have emerged as promising sensors for the rapid and ultrasensitive detection of molecular species in simple systems. However, the development of viable screening tools for multicomponent analysis in complex systems remains challenging owing to interference from coexisting materials in the media. Herein, a simple chemical sensor array based on the peroxidase-like activity of gold nanoparticles modified with single-stranded DNA (AuNPs-ssDNA) and chemometrics was developed for the simultaneous detection of K + and Tl + in aqueous solutions and serum. The use of a K + adapter conferred high selectivity to the developed method. Optimized AuNPs-ssDNAs were used to construct a sensor array, which together with chemometrics provided fingerprints that can facilitate the simultaneous analysis of multiple components. The developed colorimetric reaction in combination with the chemometrics assay was directly used as a biosensor array, which exhibited detection limits of 107.33 nM for K + and 19.26 nM for Tl + . The developed method could potentially serve as a diagnostic technique for investigating thallium poisoning and toxicology.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Jing Ru,Zhanghui Wang,Congcong Tong,Hongzhi Liu,Guofeng Wang,Zhaoxiang Peng
It remains a challenge to develop a multifunctional nanocellulose material with excellent antibacterial and cytocompatible properties. Herein, we report novel quaternized nanofibrillated cellulose (Q-NFC) anchored with nature-based p-coumaric acid (PCA) counterions (abbreviated as “PCA-Q-NFC”) via a more facile anion-exchange treatment than conventional chemical modification. Both Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) results validated that anion PCA was successfully attached to Q-NFC. The PCA-Q-NFC films were found to be in active contact against the growth of Gram-positive Staphylococcus aureus with a nonleachable nature. Even at a low loading level of the PCA moiety, the quantitative antibacterial activity of the resulting PCA-Q-NFC film was markedly superior to that of the virgin Q-NFC one. The cell survival test demonstrated that the in vitro cytocompatibility was markedly improved after the attachment of PCA. The presence of bulky PCA anions with a conjugated structure imparted the Q-NFC film with the superior UV-blocking percentage (up to 97.7%) and oxygen-barrier property. In addition, other phenolic acids (i.e., ferulic acid and caffeic acid) were attempted to demonstrate the universal applicability of this strategy. The exceptional combination of antibacterial in vitro cytocompatible and UV-shielding properties would enable phenol acid-modified Q-NFCs to have promising potentials in packaging, medical, and cosmetic applications. Our work would provide a new idea for the design of functionalized NFC toward versatile performance.
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JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
·
2022
·
IF 3.682
Yijin Wang,Yabing Jin,Yiyi Chen,Tianlei Han,Yuhong Chen,Chen Wang
Polyaryletherketone (PAEK) has good biocompatibility and mechanical properties and thus may have great potential in the fields of reparative medicine and bone intervention. In this study, the key representative PAEKs, polyetheretherketone (PEEK) and polyetherketoneketone (PEKK), were modified by UV grafting with sodium polystyrene sulfonate (polyNaSS) to improve their biocompatibility. Toluidine blue staining and Fourier transform infrared spectroscopic analyses showed that sulfonic acid groups were successfully introduced into PAEK, and the hydrophilicity and protein adsorption capacity of the materials were enhanced in a concentration-dependent manner. The effects of the grafted polyNaSS on osteoinduction and antibacterial properties of PAEK were analyzed in detail. We found that polyNaSS enhanced the viability, alkaline phosphatase activity, calcium mineral deposition, and levels of expression of osteoblast-related genes and proteins of adherent human umbilical cord Wharton’s jelly-derived mesenchymal stem cells. In addition, when Escherichia coli, Staphylococcus aureus and Porphyromonas gingivalis were incubated with the materials, bacterial colony counting revealed that grafting of polyNaSS onto PAEK led to more potent inhibition of bacterial adhesion, and polyNaSS-grafted PEKK had stronger antibacterial performance than did polyNaSS-grafted PEEK fabricated under the same grafting conditions. These data show that polyNaSS-grafted PAEK, and particularly polyNaSS-grafted PEKK, may be useful as orthopedic and dental implant materials.
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PROGRESS IN ORGANIC COATINGS
·
2021
·
IF 5.161
Jian Yin,Yahong Xiong,Xiaohua Zhou,Zhuohong Yang,Teng Yuan
Soy-castor oil-based polyurethane acrylate prepolymer (SCPUA) was synthesized by using epoxidized soybean oil and ricinoleic acid as raw materials, and a cost-effective halogen-free flame retardant phosphorous silicon methacrylate monomer (PSMAM) was also synthesized and used as an efficient reactive diluent to mix with SCPUA to develop a novel vegetable oil-based UV-curable coating system. Benefited from the addition of PSMAM, the limiting oxygen index (LOI) of the coatings reaches up to 23%, and the coatings can self-extinguish instantly (within 1 s) after removing from flame, indicating that these coatings possess remarkable flame-retardant performance. Also, the flame-retardant mechanism is proposed, and it reveals that PSMAM promotes the formation of a dense and continuous char layer on the coating surface to serve as a heat and oxygen barrier, thus providing the coatings with remarkable flame retardancy. Besides, the use of PSMAM can improve the thermal stability of the coatings. More strikingly, these coatings exhibit excellent hardness (6H), flexibility (2 mm), adhesion (4B) and remarkable acid and alkali resistance as well as boiling water resistance. Therefore, excellent performances and cost-effective feature as well as the facile synthesis process make these newly-developed halogen-free flame-retardant vegetable-oil based UV-curable coatings more potential for practical applications.
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ANALYTICA CHIMICA ACTA
·
2021
·
IF 6.558
Tianran Lin,Shendong Liu,Juanjuan Huang,Chunsuo Tian,Li Hou,Fanggui Ye,Shulin Zhao
A multicolor and photothermal dual-mode assay for sensitive alkaline phosphatase (ALP) determination was realized based on the 3,3′,5,5′-tetramethylbenzidine (TMB)-induced etching of gold nanorods (AuNRs). TMB was oxidized under ultraviolet light irradiation to form TMB + . In the presence of ALP, ascorbic acid phosphate (AAP) is converted to ascorbic acid, which can then reduce the levels of TMB + , resulting in lower concentrations of TMB + . The remaining TMB + was transformed into TMB 2+ after the addition of HCl solution. AuNRs were etched by TMB 2+ to produce a multicolor and photothermal change. Based on the degree of AuNRs etching, this highly sensitive dual-mode assay provided a linear range of 1.0–8.0 mU/mL, with detection limits of 0.34 mU/mL for the multicolor assay and 0.11 mU/mL for the photothermal assay. This method was successfully applied to the determination of ALP in serum samples.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Yong Guo,Congcong Yan,Ying Guo,Xin Ji
A series of C 60 /BN composites have been synthesized, which can efficiently photodegrade TC under visible-light irradiation. Compared with C 60 /BN-D6 and C 60 /BN-V6 synthesized under dark and visible-light irradiation, C 60 /BN-U6 synthesized under UV-light irradiation has the largest adsorption and photodegradation performance for TC under visible-light irradiation. FTIR and XPS characterizations suggest that C 60 /BN composite is most likely the charge transfer composite, in which C 60 acts as electron acceptor and BN acts as electron donor. UV-light has the best promotion effect for the formation of C 60 /BN. The adsorption quantity of TC by C 60 /BN-U6 is 2.77 times higher than that of BN (131.05 mg g −1 vs. 47.27 mg g −1 ), being due to that C 60 /BN-U6 has higher surface area than BN (135.7 m 2 g −1 vs. 18.8 m 2 g −1 ). The photodegradation of C 60 /BN-U6 for TC follows Z-scheme heterojunction mechanism, as well as the photo-induced ·O 2- and h + are the dominant photoactive species. Quantitative structure-activity relationship (QSAR) method is applied to evaluate the toxicity of TC and its photodegradation intermediates. The photodegradation rate of C 60 /BN-U6 for TC is 19.19 times, 10.06 times, 5.83 times, 2.73 times and 1.84 times higher than that of TiO 2 (P25), g-C 3 N 4 , BNPA, BCNPA, and BN/TiO 2 , respectively, implying that C 60 /BN-U is a good metal-free photocatalyst.
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高影响因子
RUBBER CHEMISTRY AND TECHNOLOGY
·
2024
·
IF 1.2
Li Y.,Yuan Y. Z.,Zhang Y.,Sun J. Y.,Tian X. H.,Jin J.,Wu W. B.
Antioxidants are usually added into NR to resist the oxidation caused by UV irradiation, whereas commonly used antioxidants are usually organic and prone to decomposition and migration. Inorganic UV absorbers such as titanium dioxide (TiO 2 ) and silicon dioxide (SiO 2 ) nanoparticles can maintain chemical stability under UV radiation, whereas the hydroxyl radicals from electron-hole pairs in TiO 2 would damage the NR matrix and the poor compatibility of TiO 2 with NR limited the process. Therefore, inert SiO 2 is coated on TiO 2 (TiO 2 @SiO 2 ) to reduce its photocatalytic activity, and polydopamine (PDA) is coated on rubber to improve stability. The strong light-absorbing properties of PDA could also improve the UV-resistant ability of NR. In addition, poly(sodium-p-styrenesulfonate) coating NR-PDA provides the matrix negative charge, and polydiallyl dimethyl ammonium chloride wrapped around TiO 2 @SiO 2 can give a positive charge, thereby moderating the compatibility between the filler and the matrix through electrostatic adsorption. The green UV-resistant natural composite NR-PDA-TiO 2 @SiO 2 was fabricated. The composites exhibited strong tensile strength and excellent UV-resistant properties, which particularly extend the service life of rubber products as UV-shielding materials, thus showing significant potential in extreme environments.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2020
·
IF 4.192
Yu Lu,Wanjun Jin,Yuerong Yang,Yue Jia,Lujia Sun,Jie Liu,Langhong Wang,Fuxing Zhang,Wupeng Ge,Jiansheng Wang,Linjuan Huang,Zhongfu Wang
Goat milk oligosaccharides are complex carbohydrates with a variety of biological functions. Free oligosaccharides from goat milk show more similarity to human milk than cow milk. At present, changes in goat milk glycoconjugates at different parities remain poorly studied. Herein, we qualitatively and quantitatively compared the goat milk glycoprotein N/O-glycome at different parities using a stable isotope labeling followed by electrospray ionization mass spectrometry and online hydrophilic interaction chromatography. N-Glycans were mainly fucosylated and nonfucosylated nonsialylated, and both fucosylation and sialylation gradually increased with parity, amounting (at the third parity) to 1.25 times and 3.3 times those of the first parity, respectively. O-Glycans were mostly nonfucosylated and nonsialylated, and sialylation increased with increasing parity, and Neu5Ac-sialylated was up to 9 times higher in the third parity than in the first parity, whereas Neu5Gc-sialylated was 5.5 times higher. This study provides a reference for exploring an alternative milk source closest to human milk and for the development of humanized formula milk.
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EUROPEAN POLYMER JOURNAL
·
2022
·
IF 5.546
Xiaoquan Li,Fuping Bian,Shi Li,Xuefeng Gui,Mingfeng Yao,Jiwen Hu,Shudong Lin
UV curing technology is a new green technology developed in the 21st century, and has been widely used in daily life and industrial production. However, a major drawback encountered with UV curing is oxygen inhibition, especially in free radical photopolymerization. As reported herein, three multifunctional silicone acrylate prepolymers were obtained via the one-step hydrosilylation of dipentaerythritol hexaacrylate (DPHA) and hydride-terminated polydimethylsiloxane (H-PDMS). These prepolymers contain five acrylate groups at each end of the polysiloxane chain, and also has a high viscosity, all of which contribute to overcome oxygen inhibition, and thus they have efficient anti-oxygen inhibition abilities. After the addition of a few photoinitiators, each of the prepolymers could be rapidly cured in air to yield a transparent film. The transparency of these cured films is over 95% on the surface of an underlying polyethylene terephthalate (PET) substrate. They remain stable at temperatures reaching up to 352.2 to 364.8 °C, thus demonstrating that they have excellent heat resistance. Water droplets exhibit water contact angles between 103° and 105° on these films, and surface energies of the cured films are from 24.58 to 20.69 mN/m. Finally, the coatings have good anti-smudge and anti-fingerprint properties, and the overall results show that these films have potential applications as UV-curable anti-smudge coatings.
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危险品化学品经营许可证（带存储）