JOURNAL OF MEMBRANE SCIENCE
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2026
·
IF 8.8
Yuan Li,Ji-Hao Hao,Yong-Bo Li,Han-Fei Wu,Jian-Hao Zhu,Dong-Ming Yao,Xue-Feng Yu,Xiufang Ding,Xiang Di,Chun-Gang Yuan
Membranes fabricated by amyloid fibrils can achieve separation of organic matters by size-sieving with normally cis -Molecular-Weight-Cut-Off- wise ( cis -MWCO) selective filtration process. However, size-sieving mechanism revealed that the secondary structures of amyloid fibrils (i.e. local intrinsic pores within an amyloid fibril) was in dormancy during filtration process. By elaborately adjusting the pore size within the fiber network to the range of the local pore size within a single amyloid fibril, the nano-array structures of amyloid fibrils was activated under filtration process. Moreover, the convenient nanochannels built by the consecutive amyloid array facilitated the permeation of some specific organic matters, which should have been rejected by size sieving, leading to the trans -MWCO selective performance. Thus in this paper, two kinds of amyloid fibril composite nanofiltration (AFN) membranes were fabricated by spraying amyloid fibrils onto ultrafiltration substrates. The results showed that both AFN membranes possessed outstanding nanofiltration performances on organic-containing aqueous solution (e.g. oligosaccharides, dyes or pharmaceuticals) with different MWCO points. Noteworthy, AFN membranes fabricated by β-lactoglobulin amyloid fibrils (βLG-AFN) can selectively retain the azo-based compounds (e.g. Chicago sky blue 6B, Congo red), while bovine serum albumin amyloid fibrils covered AFN membranes (BSA-AFN) can selectively block the phenothiazines (e.g. Methylene blue, Chlorpromazine). The optimal separation factor of both βLG-AFN and BSA-AFN membranes can reach up to 37 and 8, respectively. Additionally, the trans -MWCO performance of the AFN membrane may also contribute to the selective recycling of dyes in saline or pharmaceuticals in the patients’ urine. Finally, both antifouling and long-term tests further indicated that the AFN membranes were suitable for sustainable applications in recycling organic contaminants.
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FOOD CHEMISTRY
·
2022
·
IF 9.231
Fangling Wu,Xishi Wu,Zhe Li,Di Zhang,Chuan-Fan Ding
Identification of cis/ trans -carbon–carbon double-bond (C C) isomers remain challenging. Herein, a simple and rapid method for the separation and analysis of cis/ trans -maleic acid (MA) and aconitic acid (AA) using Trapped Ion Mobility Spectrometry (TIMS) was developed. α-, β-, γ-cyclodextrin (CD) were served as the separation reagent, slight difference in mobility separation was obtained by [CD-MA/AA-H] - . Specially, with the addition of divalent metal ion (G 2+ ) as coordination metal ion, the separation effect was much increased by [CD-MA/AA + G-H] + , and α-CD has better mobility separation effect than β-/γ-CD. Moreover, chemical calculations revealed the binary and ternary complexes are in the inclusion forms, and microscopic interactions between cis/ trans -MA/AA, CDs, and G 2+ are somewhat different that making their mobility separation. Finally, quantifications of cis/ trans -isomers were analyzed in food samples, with good linearity (R 2 > 0.99) and recoveries obtained from 87.25 % to 100.73 %.
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SCIENCE OF THE TOTAL ENVIRONMENT
·
2019
·
IF 5.589
Fuwen Liu,Qishi Luo,Ying Zhang,Kai Huang,Xue Cao,Changzheng Cui,Kuangfei Lin,Meng Zhang
Tetrabromobisphenol A (TBBPA), one of the most common brominated flame retardants, has been associated with immunotoxicity, neurotoxicity, and reproductive toxicity. However, little attention has been focused on understanding the trans-generational effects of TBBPA. The present study used the Caenorhabditis elegans (C. elegans) animal model to evaluate the trans-generational effects of neurotoxicity induced by environmentally relevant concentrations of TBBPA (0, 0.1, 1, 10, 100, and 1000 µg/L). Multiple indicators including physiological effects (body length, brood size, head thrashes, body bends, and crawling trajectory), degree of neuronal damage (dopamine, GABAergic, and glutamatergic neurons), oxidative stress-related biochemical indicators (superoxide dismutase [SOD] activity, catalase [CAT] enzyme, malondialdehyde [MDA] production, and reactive oxygen species [ROS] accumulation), and stress-related gene expressions have been evaluated in the exposed parental C. elegans generation (G 1 ) and their progeny (G 2 ) under TBBPA-free conditions. The results showed that TBBPA exposure induced adverse effects on physiological endpoints, among which body bends and head thrashes were the most sensitive ones, detected above 1 µg/L in G 1 and 100 µg/L in G 2 nematodes, respectively. After contaminant exposure, the three neurons revealed damage related to neurobehavioral endpoints, with no hereditary effects in the progeny. The oxidative stress-related biochemical endpoints demonstrated that when the exposure concentrations were above 1 µg/L in maternal worms, impairment can be detected in both generations, but the progeny recovered at low toxicity concentration (1–100 µg/L). The integrated target gene expression profiles were clearly altered in G 1 and G 2 worms at concentrations between 1 and 1000 µg/L, and a more significant difference existed in two generations of nematodes at low levels (1–10 µg/L) of TBBPA. Studing trans-generational neurotoxicity and the underlying mechanism can generate a precise evaluation of the environmental risk of TBBPA.
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CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Saleem Raza,Xueyong Yong,Muslim Raza,Jianping Deng
This article reports a novel type of biobased magnetic hollow particles (BMHPs) derived from a widely available biophenylpropene trans -anethole (ANE). To prepare BMHPs, ANE and maleic anhydride (MAH) underwent copolymerization in the presence of particulate templates to form core/shell particles. Sequential removing the cores and hydrolyzing processes provide biobased hydrolyzed hollow particles (BHHPs), which were then grafted with amino-modified Fe 3 O 4 NPs. The prepared BMHPs were characterized by SEM, TEM, XRD, VSM, EDS and FT-IR techniques and further used as bioadsorbent to remove pollutants from wastewater. The maximum adsorption capacity towards Cr 3+ , Pb 2+ and Rhodamine B is up to 44.5, 48.8 and 50.4 mg/g, respectively. Kinetic and isothermal studies show that the adsorption is best fitted with pseudo-second order model and Langmuir isothermal adsorption. BMHPs demonstrated remarkable magneticity and can be easily separated by external magnet. Recycling use study showed that the dye-adsorbed BMHPs can be easily restored in HCl/THF mixed solution. The advantages of the new adsorbents, namely, derivative from bio-resource, high adsorption capacity, much ease in separation and regeneration recyclability, render them with promising potentials in wastewater treatment.
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AUSTRALIAN JOURNAL OF CHEMISTRY
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2019
·Vol. 72
·期 7
·533-541
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IF 1.226
Sai Huang,Mei Yang,Xin-Yu Deng,Qian Jiang Zhu,Ying Huang,Zhu Tao,Kai Chen
In the present work, a host–guest system of a hemimethyl-substituted cucurbit[6]uril derived from 3α-methyl-glycoluril (HMeQ[6]) and a hemicyanine dye, trans-4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide (t-DSMI) showing strong fluorescence emission has been evaluated as a fluorescent probe. The results of a preliminary systematic study on the detection of a series of inorganic anions have revealed that this Q[n]-based host–guest fluorescent probe shows clear responses to BF4− and H2PO4− anions through distinct fluorescence quenching. Application of this Q[n]-based host–guest interaction system in anion recognition or detection opens a new avenue in Q[n] chemistry.
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FOOD RESEARCH INTERNATIONAL
·
2015
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IF 2.818
Wenwen Zhang,Xinying Li,Taocheng Yu,Lun Yuan,Gang Rao,Defu Li,Changdao Mu
Trans -anethole (AT) has a variety of antimicrobial properties and is widely used as food functional ingredient. However, the applications of AT are limited due to its low water solubility, strong odor and low physicochemical stability. Therefore, the aim of this work was to encapsulate AT with β-cyclodextrin (β-CD) for obtaining inclusion complex by co-precipitation method. The measurements effectively confirmed the formation of inclusion complex between AT and β-CD. The results showed that the inclusion complex presented new solid crystalline phases and was more thermally stable than the physical mixture and β-CD. The phase solubility study showed that the aqueous solubility of AT was increased by being included in β-CD. The calculated stability constant of inclusion complex was 1195 M − 1 , indicating the strong interaction between AT and β-CD. Furthermore, the release study suggested that β-CD provided the protection for AT against evaporation. The release behavior of AT from the inclusion complex was controlled.
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MACROMOLECULAR BIOSCIENCE
·
2013
·Vol. 14
·期 3
·369-379
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IF 3.742
Yongjian Wang,Huizhen Wang,Xueming Lv,Congcong Liu,Linshuang Qi,Xindi Song,Ao Yu
Cancer differentiation therapy is an attractive concept and has been clinically used to treat leukemia. However, it is limited to date for solid tumors. In this study, the pH-sensitive nanoparticles based on poly(amidoamine) (PAMAM) dendrimers are synthesized by coupling 3,4,5,6-tetrahydrophthalic anhydride with the first generation PAMAM. The modified dendrimers can self-assemble in aqueous solution to form nanoparticles with a diameter of 125–435 nm. The nanoparticles are relatively stable at physiological pH (pH 7.4) but dissociated in acidic environments (pH 5.0 or 6.0). The present studies show that the proliferation inhibition and albumin secretion of hepatoma carcinoma cells are enhanced with all- trans retinoic acid (ATRA) encapsulated in the nanoparticles. The enhancement of induced differentiation is due to the high internalization of ATRA in the cells by the nanoparticles. These experimental results demonstrate that pH-sensitive nanoparticles may be efficient for improving the differentiation therapy for solid tumor.
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Frontiers in Microbiology
·
2016
·
IF 4.165
Gu Haiping,Lou Jun,Wang Haizhen,Yang Yu,Wu Laosheng,Wu Jianjun,Xu Jianming
Reducing phenanthrene (PHE) in the environment is critical to ecosystem and human health. Biodegradation, biosorption, and the trans-membrane transport mechanism of PHE by a novel strain, Massilia sp. WF1, and an extensively researched model fungus, Phanerochaete chrysosporium were investigated in aqueous solutions. Results showed that the PHE residual concentration decreased with incubation time and the data fitted well to a first-order kinetic equation, and the t1/2 of PHE degradation by WF1, spores, and mycelial pellets of P. chrysosporium were about 2 h, 87 days, and 87 days, respectively. The biosorbed PHE was higher in P. Chrysosporium than that in WF1, and it increased after microorganisms were inactivated and inhibited, especially in mycelial pellets. The detected intracellular auto-fluorescence of PHE by two-photon excitation microscopy also proved that PHE indeed entered into the cells. Based on regression, the intracellular (Kdin) and extracellular (Kdout) dissipation rate constants of PHE by WF1 were higher than those by spores and mycelial pellets. In addition, the transport rate constant of PHE from outside solution into cells (KinS/Vout) for WF1 were higher than the efflux rate constant of PHE from cells to outside solution (KoutS/Vin), while the opposite phenomena were observed for spores and mycelial pellets. The amount of PHE that transported from outside solution into cells was attributed to the rapid degradation and active PHE efflux in the cells of WF1 and P. Chrysosporium, respectively. Besides, the results under the inhibition treatments of 4°C, and the presence of sodium azide, colchicine, and cytochalasin B demonstrated that a passive trans-membrane transport mechanism was involved in PHE entering into the cells of WF1 and P. Chrysosporium.
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JOURNAL OF MOLECULAR LIQUIDS
·
2016
·
IF 2.74
Muhammad Asim Akhtar,Sara Riaz,Akhtar Hayat,Muhammad Nasir,Nawshad Muhammad,Abdur Rahim,Mian Hasnain Nawaz
trans -Porphyrin containing phenyl group at both ends was synthesized via corresponding dipyrromethanes (DPM) in the presence of TFA and DDQ. The polyethyleneglycole (PEG) chains were attached at the trans positions of ABA type porphyrinic moiety. The prepared PEGylated porphyrin (with PEG arms at the periphery) P-(PEO) 2 was self-assembled into spheres of uniform diameter while their DMF solution was dialyzed into water. Furthermore, the addition of fullerene (C 60 ) to P-(PEO) 2 caused complexation between porphyrin and fullerene which lead to interesting and trenchant morphology having worm like lateral aggregates. The assembly process and the as-prepared edifices were characterized using UV–vis absorption spectroscopy and the morphology of these assemblies was investigated using transmission electron microscope (TEM). Furthermore, the DNA binding with porphyrin aggregates has been demonstrated via electrochemical (cyclic voltammetric) response of screen printed electrodes modified . The obvious increase in redox current disclosed the intermolecular interactions of the adducts with the DNA. These studies of unprecedented adducts can further be explored for potential applications in biosensors .
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Scientific Reports
·
2017
·Vol. 7
·期 1
·1-8
·
IF 4.259
Su Yanbin,Ma Xiaowei,Su Yanwen,Mu Tongxing,Li Yanhe,Jiang Ning,Su Yuyun,Zhang Qi
Inappropriate use of ethanol (EtOH) had led to noticeable health problems, but a beneficial phenomenon was found that EtOH displayed unique influences for toxic trans-crotonaldehyde (TCA) derived from mitochondrial lipid peroxidation. The influences of EtOH on the structure of TCA were systematically probed by UV-vis & Raman spectroscopy in the absence and presence of mitochondria, respectively. The maximum UV-vis peak at 301 nm of TCA was red shifted by hydroxyl (-OH) and methyl (-CH 3 ) of EtOH, respectively. Raman stretching band of aldehyde (-CH=O) of TCA (TCA-CH=O) was split by the -CH 3 of EtOH. The -CH 3 increased TCA-CH=O stretching frequency while the -OH induced it. The more exposed -OH, the less stretching frequency. The ectopic -CH 3 red shifted the UV-vis peak at 301 nm and Raman band of TCA-CH=O. In mitochondria, EtOH red shifted Raman stretching band of TCA-CH=O. Raman stretching bands of C-H, C-O and C-C of EtOH were red shifted, while Raman stretching bands of -CH 2 and C-C-O of EtOH disappeared. The paper unearths the influences of EtOH to trap and transform the structure of TCA-CH=O. This discovery has an important contribution to eliminate TCA in order to protect and repair mtDNA by means of the decrease of 8-oxoG.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2017
·
IF 3.154
Hongbao Lu,Shuangyu Xu,Wenjuan Zhang,Chunmei Xu,Beixing Li,Daxia Zhang,Wei Mu,Feng Liu
Botanical nematicides have recently received increasing interest because of the high risks of some traditional nematicides to human health and the environment. This study evaluated the nematicidal activity of a plant volatile, trans-2-hexenal, against Meloidogyne incognita. This compound exhibited higher activity in a fumigation experiment than in the aqueous phase in vitro. Both in pot tests and in field trials, trans-2-hexenal showed significant efficacy against M. incognita while maintaining excellent plant growth, especially at doses of 1000 and 500 L ha–1, which were superior to that of abamectin at 180 g ha–1 via hole application treatment but not significantly different from fumigation with 400 kg ha–1 of dazomet. Furthermore, plants treated with 500 L ha–1trans-2-hexenal had fruit yields 20.2 and 45% greater than the control group. On this basis, trans-2-hexenal may be a potential alternative fumigation agent for controlling M. incognita on tomato crops.
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Food and Bioprocess Technology
·
2017
·Vol. 10
·期 10
·1844-1853
·
IF 2.576
Ye Youxin,Zhu Mingjin,Miao Keyan,Li Xinying,Li Defu,Mu Changdao
Antimicrobial activity is an attractive property for packaging materials which can extend the shelf life of products and provide microbial safety for consumers. The study aimed to analyze the physicochemical and antimicrobial properties of gelatin-based edible films containing trans -anethole as the active additive. Encapsulation with β-cyclodextrin was used as an effective way to introduce trans -anethole into gelatin matrix. The results showed that the trans -anethole/β-cyclodextrin inclusion complex could be evenly dispersed in the gelatin-based edible films with appropriate addition. The incorporation of trans -anethole conferred the edible films with good antimicrobial activity as expected, which increased with the content of trans -anethole increasing. Moreover, the addition of inclusion complex improved the tensile strength and surface hydrophobicity and reduced the moisture content of the edible films. It was interesting that the edible films presented great UV light barrier property and it was increased by the addition of inclusion complex. Overall, the antimicrobial gelatin-based edible films showed great potential as bioactive packaging materials to extend food shelf life.
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危险品化学品经营许可证（带存储）