INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2019
·
IF 4.784
Kewang Zheng,Wei Li,Wei Wang,Hujian Chen,Chaofan Huang,Qiaolin Ren,Caiqin Qin
Adsorption of metal impurities from transformer oil was studied using a novel porous membrane. A solution of N , O ‑carboxymethyl‑chitosan (CMC) and sodium phytate (SP) was blended to prepare a novel porous membrane for the metal impurities adsorption from transformer oil. The chemical structure of the membranes was characterised by their FTIR spectra, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and video camera observations. The effects of the SP content of the membrane, contact time, and contact temperature on adsorption of copper, iron, and aluminium impurities were studied. The FTIR spectra and thermogravimetric curves of the membranes indicated good compatibility between CMC and SP. The SEM and video camera observations suggested that CMC-SP composite membranes had a mature, porous structure. The experimental results showed that the SP content significantly affected the adsorption capacity of a CMC membrane. The maximum adsorption percentages of elemental copper, iron, and aluminium were 88.12%, 82.35%, and 80.36% when the SP ratio was 80% at 60 °C.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SOLAR ENERGY
·
2020
·
IF 4.608
Chaorong Wu,Yinyi Huang,Shuo Wang,Xu Miao,Ruixin Ma,Chengyan Wang
The blade coating method is considered a promising large-scale manufacturing technology for its economy and applicability to the large-scale roll-to-roll process. However, the performance of devices currently produced by doctor blade coating remains lagging behind that of spin-on devices for their low film quality and inadequate coverage. In this study, an inter-layer of phytic acid sodium (PAS) was introduced between the NiO x hole transporting layer (HTL) and the perovskite absorption layer to enhance the film quality and coverage. By regulating the flow and the drying process of the one-step perovskite solution in dimethyl sulfoxide (DMSO) and gamma-butyrolactone (GBL) solvent, a complete high-quality perovskite film was formed, and the domain size considerably increased from about 50 µm to 100–200 µm. According to the lower VB value of −5.3 eV achieved by the PAS modified NiO x film, the device with PAS inter-layer could more effectively fit energy level and extract holes. Moreover, PAS also promoted a better contact between NiO x layer and the perovskite layer; thus, the filling factor (FF) was up-regulated from 52.96% to 60.82% by enhancing the interfacial properties. Lastly, the power conversion efficiency (PCE) of the perovskite solar cell device fabricated by doctor blade coating in the atmospheric environment was up-regulated from 10.07% to 13.19% (aperture, 1 cm 2 ). The finding of this study can guide the preparation of perovskite films by doctor blade coating.
研究领域:
材料科学
·
太阳能技术
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Sidra Chaudhary,Xuhao Zhang,Yi Bai,Simo Ma,Yong Wu,Qinxiang Jia,Xiaoyong Li,Yang Sun
This study introduces an innovative method for synthesizing multifunctional water-retaining agents via ammonium persulfate-initiated alkaline copolymerization of sodium humate with diverse functional components. The resulting materials exhibit exceptional and reproducible water/saline absorbing capabilities, outstanding water retention performance, and remarkable UV resistance. Structural characterization demonstrates that sodium humate's graphite backbone can be either preserved or modified depending on the copolymerized components, with polyvinyl alcohol (37.41–93.82 g g −1 ) and polyvinyl pyrrolidone (39.23–97.66 g g −1 ) composites showing particularly superior water absorption properties over 18 recycling cycles. A significant discovery is the concurrent formation of ammonium nitranilate, a high-energy-density salt, whose production from humic acid not only confirms Stevenson's structural model featuring quinone moieties but also offers an economical alternative to conventional chloranil-based synthesis that requires hazardous chlorine gas and expensive precursors. This work thus accomplishes dual breakthroughs: developing high-performance irrigation materials for arid regions while establishing a highly effective valorization pathway for humic acid to produce valuable energetic compounds.
研究领域:
高分子化学
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农业工程
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材料科学
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环境化学
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产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Mengting Yu,Yujing Sun,Na Ji,Lei Dai,Man Li,Xuyan Dong,Liu Xiong,Qingjie Sun
Superhydrophobic coatings have gained significant interest due to their ability to prevent liquid foods like juice and yogurt from adhering to the inner surfaces of containers, thus reducing waste. Superhydrophobic coatings limit its application due to its toxicity, degradability and other reasons. In this work, chitosan sodium phytate films were deposited on glass plates by layer-by-layer self-assembly (LBL), then SiO 2 nanoparticles were introduced to construct micro/nano-structures, and finally, surface modification with polydimethylsiloxane (PDMS) was carried out to prepare superhydrophobic films. The surface of the superhydrophobic film had a micro/nano-scale structure similar to that of lotus leaves. The water contact angle (WCA) of superhydrophobic films reached 153°, and sliding contact angle (SA) was 5°. Owing to this unique structure, different liquid food droplets could roll off freely in a near spherical form on the chitosan phytate film surfaces, effectively reducing residue during container pouring. The outcomes of this study are expected to expand the potential applications of superhydrophobic chitosan films in liquid food anti-adhesion.
研究领域:
材料科学
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食品科学
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表面工程
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生物材料
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绿色包装
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产品关联
DOI
高影响因子
Materials Advances
·
2022
·Vol. 3
·期 8
·3593-3599
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IF 0
Shanshan Xing,Chunqiu Xia,Xinyi Liu,Liangqia Guo,Fengfu Fu
A simple and green one-step method for the simultaneous exfoliation and functionalization of few-layered MoS2 nanosheets was developed via the ultrasonic treatment of bulk MoS2 powder in sodium phytate-containing aqueous solution. The as-prepared MoS2 nanosheets show high stability, low cytotoxicity and high adsorption capacity for Hg2+ in aqueous solution. The maximum adsorption capacity for Hg2+ is about 7.5 times and 3.7 times that of bulk MoS2 powder and unfunctionalized MoS2 nanosheets, respectively. The adsorption kinetics and thermodynamics indicate that the adsorption of Hg2+ is a monolayer chemical adsorption. Finally, the as-prepared MoS2 nanosheets were applied for the removal of Hg2+ in HepG2 cells and show a similar detoxification effect as that of the common antidote meso-2,3-dimercaptosuccinic acid, indicating the potential application of MoS2 nanosheets for biological detoxification.
研究领域:
材料科学
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环境科学
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生物医学工程
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纳米技术
✓ 已验证
产品关联
DOI
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
·
2018
·Vol. 69
·期 6
·736-748
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IF 1.259
Xiaojie Liu,Weihua Li,Wei Wang,Liying Song,Weijie Fan,Xiang Gao,Chuansheng Xiong
Mesoporous micro- or nanocontainers have been indicated to be potential carriers of corrosion inhibitors to modify water-based coatings for self-healing properties and excellent anti-corrosion performance. In this work, the eco-friendly mesoporous chitosan microspheres loaded with green corrosion inhibitor sodium phytate were incorporated in self-healing water-based polyacrylate coating. The microspheres with mesoporous surface, uniform size, and promising pH responsiveness were prepared via the water-in-oil (W/O) emulsion chemical cross-linking method. On this basis, chitosan microspheres loaded with 25.79 wt% sodium phytate were obtained by negative pressure impregnation method and the pH-responsive was demonstrated by the electrochemical impedance spectroscopy (EIS). The results of EIS and seawater immersion tests revealed that artificial defected water-based polyacrylate coating containing 5 wt% chitosan microspheres showed high anti-corrosion performance and exhibited self-healing capabilities due to the release of corrosion inhibitor sodium phytate.
研究领域:
材料科学
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腐蚀工程
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高分子化学
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环境科学
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2021
·
IF 9.381
Mengting Yu,Shuangshuang Zhao,Lu Yang,Na Ji,Yanfei Wang,Liu Xiong,Qingjie Sun
The development of environmentally friendly and transparent superhydrophilic food packaging materials is essential in our daily lives. The objective of this study was to develop a simple method of preparing a superhydrophilic, transparent, and biodegradable composite film. The composite film was obtained by soaking a chitosan-sodium phytate film in an ethanol solution of SiO 2 nanoparticles . The results showed that when the chitosan-sodium phytate film was coated with SiO 2 nanoparticles that were dissolved in 75% ethanol, its water contact angle (WCA) was reduced from 100° to 3°, and the film surface was changed from a hydrophobic to a superhydrophilic. Furthermore, the oxygen transmission rate (OTR) was significantly reduced, and the mechanical properties of the film were improved. The method is easy to carry out and can be used for the potential production of superhydrophilic materials.
研究领域:
材料科学
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纳米技术
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食品科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Biomaterials Science & Engineering
·
2018
·
IF 4.432
Mengmeng Hou,Ruihao Yang,Lei Zhang,Leiyang Zhang,Gang Liu,Zhigang Xu,Yuejun Kang,Peng Xue
The injection of theranostic drug-laden hydrogels into subcutaneous tumors has proven to be a promising strategy to achieve precise local tumor eradication. Humic acid, a natural product of biochemical decomposition of animal and plant residues, abundantly exists in soils, peats, oceans, etc. In this study, a robust injectable thermoresponsive agarose hydrogel incorporating sodium humate (SH) and doxorubicin (DOX) was constructed as a unique agent for tumor management based on the combined chemo-photothermal therapeutic effect. SH, which strongly absorbs near-infrared (NIR) light, can efficiently convert light energy into thermal energy, induce local hyperthermia and subsequently trigger sustained drug release from the complex of the SH/DOX@hydrogel through a typical gel–sol transition, resulting in enhanced cellular uptake of therapeutic drugs. Moreover, intratumoral injection of the SH/DOX@hydrogel resulted in a simultaneous chemo-photothermal therapeutic effect against solid tumors under NIR laser irradiation, which may collectively prevent tumor recurrence. In addition, the SH/DOX@hydrogel exhibited ultralow systemic toxicity as demonstrated using an animal model. This work provides a promising attempt to develop a low-cost, light-responsive hydrogel for precise tumor therapy, which may also incorporate extra theranostic modules as an advanced platform for the treatment of cancer or other critical diseases.
研究领域:
生物医学工程
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材料科学
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肿瘤学
·
药剂学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2023
·
IF 7
Bin Zhu,Yu Liu,Yanlei Zhao,Xinyu Dou,Linbang Wang,Shuyuan Min,Xiaoguang Liu,Dong Qiu
The ideal skull defect repairing material should have good biocompatibility, mechanical properties, and contribute to osteogenesis. In this study, we designed and fabricated biodegradable, bioactive and mechanically robust porous scaffolds composed completely of biological materials. We used gelatin-chitosan blend as the matrix, sodium phytate instead of toxic glutaraldehyde for cross-linking, and the pH-neutral bioactive glass (PSC) to improve biological activity and mechanical properties. The chitosan-gelatin-30%PSC/sodium phytate composite scaffold avoided the problems of high toxicity in conventional cross-linking agents with glutaraldehyde, the poor mechanical support of pure chitosan or gelatin scaffold, and the mismatch of degradation rate with bone repair, being promising as a new candidate for skull defect repair.
研究领域:
生物材料
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组织工程
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Yankang Deng,Miaomiao Zhu,Tao Lu,Qingwei Fan,Wenjing Ma,Xiaoli Zhang,Long Chen,Huihua Min,Ranhua Xiong,Chaobo Huang
Air pollution has seriously affected human health and the atmospheric environment. Preparation of fiber membrane with hierarchical structure provides an advanced method for high-performance air filtration. However, indistinctive secondary structure and complicated preparation present constantly in the formation of fiber with hierarchical structure, inevitably limited in the application of air filtration. In this work, a typical granular-convex structure was created in the surface of thermal-crosslinked sodium phytate/polyvinyl alcohol (T-PANa/PVA) fiber via green preparation. Unique secondary structure endowed fiber with efficient physical interception and polar adsorption, which exhibited excellent the removal of air pollutants (removal of PM 2.5 high than 99.9% while low air resistance of 36.5 Pa). In addition, due to the exist of crosslinked network, T-PANa/PVA fiber membrane expresses water-resistant and mechanical properties . This work provides a positive strategy to fabricate hierarchical fiber membranes via green preparation for high-performance air filtration, which is expected to substitute traditional air filtration materials and adapt to the sustainable development of future.
研究领域:
环境科学
·
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
Biomaterials Science
·
2019
·Vol. 8
·期 1
·353-369
·
IF 5.251
Mengmeng Hou,Weiwei Liu,Lei Zhang,Leiyang Zhang,Zhigang Xu,Yang Cao,Yuejun Kang,Peng Xue
In spite of widespread applications of nano-photosensitizers, poor tumor penetration and severe hypoxia in the tumor microenvironment (TME) always result in an undesirable therapeutic outcome of photodynamic therapy (PDT). Herein, a biocompatible agarose-based hydrogel incorporated with sodium humate (SH), manganese oxide (MnO2) and chlorin e6 (Ce6) was synthesized as agarose@SH/MnO2/Ce6 through a “co-trapped” strategy during a sol–gel process and employed for combined photothermal therapy (PTT) and enhanced PDT. NIR-induced local hyperthermia is responsible for not only activating Ce6 release, but also triggering the catalytic decomposition of H2O2 mediated by MnO2 to relieve hypoxia. Such a hybrid hydrogel can realize deep tissue penetration through intratumoral injection, and exhibit remarkable tumor-site retention. Moreover, programmed laser irradiation led to an extremely high tumor growth inhibition rate of 93.8% in virtue of enhanced PTT/PDT. In addition, ultralow systemic toxicity caused by the hybrid hydrogel was further demonstrated in vivo. This reliable and eco-friendly hydrogel paves the way for the development of smart gel-based biomaterials, which respond to both exogenous and endogenous stimuli, towards the management of cancer and other major diseases.
研究领域:
生物医学工程
·
纳米技术
·
癌症治疗
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Xuxi Ma,Songmei Kong,Zhenzhen Li,Shiyu Zhen,Fusheng Sun,Nan Yang
In this paper, microgels with uniform particle size were prepared by physically cross-linking the hydrophobically modified chitosan ( h -CS) with sodium phytate (SP). The effects of cross-linking density on the interfacial adsorption kinetics , viscoelasticity , stress relaxation, and micorheological properties of the hydrophobically modified chitosan microgels ( h -CSMs) at the oil–water interface were extensively investigated by the dilatational rheology, compressional rheology, and particle tracing microrheology. The results were correlated with the particle size, morphology, and elasticity of the microgels characterized by dynamic light scattering and atomic force microscopy . It was found that with the increase of cross-linking density, the h -CSMs changed from a polymer-like state to ultra-soft fussy spheres with higher elastic modulus . The compression isotherms demonstrated multi-stage increase caused by the interaction between the shells and that between the cores of the microgels successively. As the increase of cross-linking density, the h -CSMs diffused slower to the oil–water interface, but demonstrating faster permeation adsorption and rearrangement at the oil–water interface, finally forming interfacial layers of higher viscoelastic modulus due to the core-core interaction. Both the initial tension relaxation and the microgel rearrangement after interface expansion became faster as the microgel elasticity increased. The interfacial microrheology demonstrated dynamic caging effect caused by neighboring microgels. This article provides a more comprehensive understanding of the behaviors of polysaccharide microgels at the oil-water interface.
研究领域:
材料科学
·
化学工程
·
胶体与界面科学
·
高分子科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）