Food & Function
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2021
·Vol. 12
·期 18
·8626-8634
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IF 5.396
Fengzhi Qiao,Xiaoting Yu,Shanshan Tie,Yannan Chen,Shuai Hou,Mingqian Tan
Food-borne nanoparticles from Undaria pinnatifida (UPFNs) were prepared and successfully applied as nanocarriers for microelement zinc delivery. UPFNs were spherical nanoparticles with average sizes of about 4.07 ± 1.09 nm, which chelated with zinc ions through amino nitrogen and carboxyl oxygen atoms as characterized by X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and 1H nuclear magnetic resonance spectroscopy. Thermodynamic analysis revealed that the overall chelation process between UPFNs and zinc ions was a spontaneous enthalpy-driven endothermic reaction. Compared to zinc sulfate, UPFN–Zn2+ showed higher solubility both in phytic acid solution and the process of gastrointestinal digestion. Meanwhile, no obvious cytotoxicity was found in UPFNs and UPFN–Zn2+. Specifically, UPFN–Zn2+ could successfully rescue cell viability, DNA replication activity and restore cell proliferation ability in zinc-deficient cells induced by a specific zinc chelator TPEN. Overall, UPFNs might serve as efficient, stable, and safe nanocarriers for zinc delivery.
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PubMed
高影响因子
ACS Applied Nano Materials
·
2021
·
IF 5.097
Xiuju Wu,Rongfei Wang,Wei Li,Bomin Feng,Weihua Hu
Precious metal phosphides have attracted considerable research interest for electrocatalysis in recent years, but it remains an open question how to design such electrocatalysts to facilitate the gas-evolving water electrolysis with high activity and durability at low metal loading. In this work, rhodium phosphide nanoparticles are attached on a nitrogen/phosphorus-doped carbon cloth matrix (Rh2P-N/P-CC) with an ultralow Rh loading of 39.2 μg cm–2 to be used as an excellent bifunctional electrocatalyst for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). By rationally integrating the merits of its two components, as-reported Rh2P-N/P-CC exhibits impressive HER catalytic performance, outperforming benchmark Pt/C catalysts at only 7.85% equivalent of Pt; meanwhile, Rh2P-N/P-CC largely surpasses the RuO2 catalyst during OER catalysis in alkaline media. As a bifunctional electrocatalyst, Rh2P-N/P-CC catalyzes stable electrochemical water splitting of 200 mA cm–1 under 1.7 V. This work reports a feasible strategy to integrate three-dimensional electrodes for high performance water electrolysis.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2021
·Vol. 32
·期 11
·4440-4449
·
IF 3.665
Qianqian Guo,Yufan Yang,Lu Li,Jun Sun,Wei Liu,Xiaoyu Gu,Hongfei Li,Sheng Zhang
Polyethylene terephthalate (PET) fabric has been widely used in textile industry for decades. However, it faces poor flame retardant performance and dripping problem during burning. In our study, a novel intumescent flame retardant coating containing bio-materials ammonium phytate (APA) and cyclodextrin (CD) had been constructed on PET fabrics surface via pad-dry-cure method. The fire performance, mechanical properties and bio-safety of APA/CD coated fabric were evaluated. PET fabric coated with 19%APA/6%CD showed a limiting oxygen index value of 29.5% with self-extinguish from fire and no melt dripping during the vertical burning test. Cone calorimetry test revealed that treated PET fabric significantly suppressed heat release and mass loss. The peak heat release rate was decreased from 277.1 KW/m 2 of PET fabric to 158.3 KW/m 2 of PET-19%APA/6%CD sample. Furthermore, the residue of treated fabric after combustion was also increased significantly. Tensile strength test showed that the maximum force of fabric was improved by 109.5% in warp direction and 24.2% in weft direction after treatment. Skin irritation test indicated that APA/CD coated PET fabric did not cause erythema and edema to rabbit skin and exhibited satisfactory bio-safety. All these results suggest that this study proposes a viable way to produce bio-safety flame retardant PET fabrics.
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高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Zeming Huang,Yin Gao,Zhengyu Huang,Donglin Chen,Jiahui Sun,Li Zhou
Exploring an effective sensor to detect Fe 3+ and phytic acid (PA) is of great importance because the levels of Fe 3+ and PA have a vital impact on human health. Herein, we report a metal-free fluorescent nanoprobe for sensitive and selective sensing of Fe 3+ and PA based on the sulfur quantum dots (SQDs). The SQDs with high fluorescence quantum yield (17.6%) and low cytotoxicity can be directly synthesized from cheap elemental sulfur by one-pot reaction. The SQDs display responsive and selective fluorescence “on–off-on” behavior towards Fe 3+ and PA based on the introduction and elimination of electron transfer effect. The addition of Fe 3+ can cause non-radiative electron transfer associated with fluorescence quenching of SQDs, while the addition of PA enables SQDs/Fe 3+ complex release Fe 3+ to recover the fluorescence of SQD S . By utilizing these SQDs as a fluorescent nanoprobe, it shows good linear relationship for Fe 3+ and PA in the range of 0.05–120 µM and 0–12 µM, respectively. Moreover, its limit of detection (LOD) for Fe 3+ and PA can reach as low as 102 and 73.5 nM, respectively, which compares favorably to many reported fluorescent probes. Additionally, the use of this SQDs-based sensor to detect PA in fresh carrot and lettuce samples was examined with satisfactory performance.
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高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2021
·
IF 4.759
Jing Liang,Ke Min,Piao Long,Xuqian Weng,Qun Huang,Bo Chen,Ming Ma
Ce-doped Fe 3 O 4 magnetic particles (Ce-Fe 3 O 4 MPs) were synthesized by co-precipitation method. The coordination and adsorption properties of Ce-Fe 3 O 4 MPs to different natural products were investigated. The results verified that the “catechol-like”,“maltol-like” and “acetylacetone-like” donor sets of flavonoids were the binding sites with Ce-Fe 3 O 4 MPs. The adsorption was conformed to be pseudo-second-order model and single-layer adsorption after being characterized by adsorption kinetics and adsorption thermodynamics. The adsorption and desorption conditions were optimized. It was found that different components adsorbed on the Ce-Fe 3 O 4 MPs surface can be selective desorbed in different solvents, which was helpful for the selective separation to adsorbed components. The Ce-Fe 3 O 4 MPs were successfully applied to selective adsorption of compounds containing “catechol-like”, “maltol-like” and “acetylacetone-like” donor sets in the crude extract of Scutellaria baicalensis Georgi and Rheum palmatum L . The results demonstrated that the magnetic solid phase extraction (MSPE) method based on Ce-Fe 3 O 4 MPs has the advantages of high structural selectivity, high efficiency and low consumption, and can be used for efficient separation of flavonoids with specific structures from natural products.
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PubMed
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 21
·12807-12817
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IF 12.732
Hao Zhang,Chaohai Wang,Wuxiang Zhang,Ming Zhang,Junwen Qi,Jieshu Qian,Xiuyun Sun,Brian Yuliarto,Jongbeom Na,Teahoon Park,Hassanien Gomaa Abdien Gomaa,Yusuf Valentino Kaneti,Jin Woo Yi,Yusuke Yamauchi,Jiansheng Li
Carbon-based electrodes play important roles in constructing efficient capacitive deionization (CDI) devices. Therefore, the rational design of carbon materials with optimized structure, composition, and morphology is crucial for further improving the CDI performance. Herein, a novel N, P co-doped eave-like hierarchical porous carbon (NP-EHPC) for CDI is reported. To prepare the NP-EHPC, the core–shell ZIF-8@AF particles are first prepared through the kinetically-controlled growth of zeolitic imidazolate framework-8 (ZIF-8) and polymerization of p-aminophenol and formaldehyde (AF), followed by subsequent pyrolysis and post-doping with phosphorus. Owing to the unique eave-like morphology, presence of abundant mesopores, and co-doping of P and N, the NP-EHPC exhibits a high desalination capacity of 24.14 mg g−1 in 500 mg L−1 NaCl solution at 1.2 V and long cycling stability of over 150 cycles. Moreover, the density functional theory (DFT) calculation results reveal that the co-doping of N and P atoms can greatly enhance the binding energies for Na and Cl atoms and lead to superior electrosorption capacity. This work provides a new insight into the design of high-performance carbon materials for the desalination of brackish water.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Dajin Liu,Zhilong Han,Jingqi Ma,Lingfeng Gao,Jie Cai,Lina Zhang,Shijie Cheng,Jia Xie
SiO x anodes hold great promise for next-generation lithium-ion batteries (LIBs) due to the high capacity and enhanced cycling stability versus silicon. However, its long-term development is hampered by seeking a scalable and effective method to tackle the issues of low conductivity and large volume expansion. Herein, a novel anode material is constructed by wrapping SiO x into PVA derived carbon layer and N-doped carbon (NC) nanosheets derived from exfoliated chitin nanosheets. The SiO x nanoparticles tightly encapsulated by the chitin nanosheets and PVA are transformed to robust SiO x @NC composites after pyrolysis. The encapsulation of PVA derived carbon layer and the NC sheets enhances the conductivity, relieves the volume change, and contributes to forming a stable SEI film. As a result, the prepared SiO x @NC-2 anode delivers a stable cycling performance and competitive rate capability. After 300 cycles at 0.5 A g −1 , a relatively high capacity of 602 mA h g −1 is maintained. The cost-effective precursors and facile synthetic route can promote the application of the SiO x @NC composites as anode materials in energy storage, as well as facilitating the large-scale application of the biowaste derived chitin.
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高影响因子
PROGRESS IN ORGANIC COATINGS
·
2021
·
IF 5.161
Wei Liu,Rui Shi,Xinguo Ge,Hao Huang,Xiaosui Chen,Meng Mu
Phytic acid (IP 6 ) is the principal storage form of phosphorus in many plant tissues, especially the bran portion of grains and other seeds. This paper describes an attempt to develop a bio-based finishing using IP 6 biomolecules in order to reduce the flammability of polyamide 66 (PA 66) fabric and solve its melt dripping problem. ATIR-FTIR and SEM characterizations indicate the formation of a bio-based coating containing P O P groups (O-IP 6 bio-oligomer) by hydration reaction between IP 6 biomolecules during finishing. The limiting oxygen index test and the vertical burning test show that the treated PA fabric has the highest LOI value of 32.3 and self-extinguishing behavior without melt dripping, confirming the ability of O-IP 6 coating to improve the fire performance of thermoplastic polyamide fabric. And enhancement in char formation of the treated fabric and reduction in its total heat release have also been verified by thermogravimetry analysis and microcalorimetry. Durability test reveals O-IP 6 oligomeric structure could promote the water resistance of the treated sample, which could keep 82.7 % of the original LOI for 25IP 6 -PA fabric after 20 times washing with water alone. Moreover, the interesting intumescent-like flame retardant mechanism of IP 6 -PA fabric has also been proposed here.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Yue Jiao,Ya Lu,Kaiyue Lu,Yiying Yue,Xinwu Xu,Huining Xiao,Jian Li,Jingquan Han
Hypothesis Hydrogel-based sensors have attracted considerable attention due to potential opportunities in human health monitoring when both mechanical flexibility and sensing ability are required. Therefore, the integration of excellent mechanical properties , electrical conductivity and self-healing properties into hydrogels may improve the application range and durability of hydrogel-based sensors. Experiments A novel composite hydrogel composed of polyaniline (PANI), polyacrylic acid (PAA) and 2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNFs) was designed. The viscoelastic, mechanical, conductive, self-healing and sensing properties of hydrogels were studied. Findings The TOCNF/PANI/PAA hydrogel exhibits a fracture strain of 982%, tensile strength of 74.98 kPa and electrical conductivity of 3.95 S m −1 , as well as good mechanical and electrical self-healing properties within 6 h at ambient temperature without applying any stimuli. Furthermore, owing to the high sensitivity of the TOCNF/PANI/PAA-0.6 hydrogel-based strain sensor (gauge factor, GF = 8.0), the sensor can accurately and rapidly detect large-scale motion and subtle localized activity. The proposed composite hydrogel is as a promising material for use as soft wearable sensors for health monitoring and smart robotics applications.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Peng Mu,Liang Song,Le Geng,Jian Li
Solar steam generation has attracted much attention due to its efficient and ecofriendly characteristics for application in water desalination and wastewater treatment. Many strategies have been developed to prepare the photothermal conversion materials. However, it is a challenge for preparing the materials with high energy efficiency, long durability and excellent salt resistance under 1 kW·m −2 illumination by using low-cost materials and simple method. Here, we report an ATP (Attapulgite) based PArG aerogel with low thermal conductivity (0.167 W·m −1 ·K −1 ), high mechanical property and superhydrophilicity by using combination of physical/chemical crosslinking of the ATP, PVA, GO and PA and freeze-drying for the efficient solar steam generation. The as-prepared PArG-A30 aerogel shows aligned three-dimensional porous structure and possesses high evaporation performance both in salt solution and the simulated seawater. The evaporation rate is calculated to be 1.4914 kg·m −2 ·h −1 for pure water, 1.4382 kg·m −2 ·h −1 for 20% of NaCl solution and the corresponding energy conversion is found to be 89.5% and 86% under 1 kW·m −2 illumination. In addition, the as-prepared PArG-A30 aerogel shows excellent durability and salt resistance in 20% NaCl solution, indicating the excellent the desalination performance of the resultant PArG-A30 aerogels. This study may offer a new approach to scalable fabricate a novel solar steam generator for the efficient solar steam generation by using simple method and low-cost materials.
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高影响因子
COMPOSITES PART B-ENGINEERING
·
2021
·
IF 9.078
Chengwei Liu,Tao Zhang,Yuxin Luo,Yixuan Wang,Jiacheng Li,Ting Ye,Ruifeng Guo,Pingan Song,Jiu Zhou,Hao Wang
Polyurethane (PU) sponge has a wide range of applications in our daily life. Unfortunately, the PU sponge is highly flammable and becomes a breeding ground for bacteria, thereby threatening human health and life. To date, it remains a challenge to improve the flame retardant and antibacterial properties of PU sponge simultaneously without destroying its inherent elasticity and flexibility. Here we report a novel composite coating on the PU sponge using bioderived phytic acid and sodium lignosulfonate via a facile soaking method. Compared to the pristine sponge, the coated PU sponge can reach a 32% reduction in peak heat release rate during cone calorimeter test, and prevent melt dripping after being ignited by a butane torch and the flame can be self-extinguished after the torch is removed. The resultant composite coating also demonstrates a killing rate of 99% against Staphylococcus aureus . Meanwhile, the coated PU sponge can retain the inherent elasticity and flexibility even after 500 cycles of compression. Furthermore, the coating materials are easily recyclable, which provide a useful reference for multifunctional treatment of sponge and cyclic utilization of resources.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2021
·Vol. 32
·期 8
·3232-3241
·
IF 3.665
Wei Liu,Rui Shi,Zejiang Zhang,Mingqiang Yan,Xiaosui Chen,Yuyan Chen
Phytic acid (IP 6 ) as the major phosphorus-containing component of certain plants, such as cereal, oil plant, and bean possesses strong capability of coordinating with metal ion to form complex salt. In this study, low concentration IP 6 was utilized in combination with Al 3+ ion to in situ form insoluble Al 3+ -IP 6 complex salt on the surface of the fabric through coordination driven layer-by-layer deposition technology without high temperature cure step, which is an attempt to provide a facile bio-based flame retardant finishing to polyamide (PA) 66 fabric. Surface structure of the treated PA fabric has been analyzed via ATR-FTIR and SEM characterization. Effect of BLs' number on the flame retardancy and burning behavior of the treated sample has been examined by the limiting oxygen index (LOI) test, the vertical burning test, microcalorimetry, and thermogravimetric analysis. The results show that 20LBL PA fabric has the highest LOI value, highest residual char yield, and lowest THR value in all the samples and no melt dripping behavior could be detected during combustion of 20LBL PA fabric. Moreover, the insolubility of Al 3+ -IP 6 salt from the surface could promote the durability of the treated fabric after laundering procedure using water single. This is the first time to use coordination driven layer-by-layer deposition technology in the fabric's flame retardant finishing.
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高影响因子
危险品化学品经营许可证（带存储）