ANALYTICA CHIMICA ACTA
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2016
·
IF 4.712
Jie Feng,Yonglei Chen,Yangxia Han,Juanjuan Liu,Cuiling Ren,Xingguo Chen
In recent years, extensive researches are focused on the fluorescent carbon nanoparticles (CNPs) due to their excellent photochemical, biocompatible and water-soluble properties. However, these synthesis methods are generally suffered from tedious processes. In this paper, fluorescent carbon nanoparticles are synthesized by a facile, one-pot, low-temperature method with trypsin and dopamine as precursors. The synthesis process avoids any heating operation and organic solvent , which provides a “green” and effective preparation route. The obtained CNPs exhibit excellent water-solubility, salt-tolerance and photostability. Based on the synergistic action of the inner filter effect and static quenching mechanism, the CNPs are exploited as a “turn-off” fluorescence sensor for sensitive and selective detection of Fe 3+ ions . The probe shows a wide linear range from 0.1 to 500 μM, with a limit of detection of 30 nM. Furthermore, the as-fabricated fluorescent sensing system is successfully applied to the analysis of Fe 3+ in biological samples such as human urine and serum samples with satisfactory recoveries (92.8–113.3%).
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DOI
PubMed
高影响因子
KEY ENGINEERING MATERIALS
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2015
·
IF 0
Xiao Xiao Wang,Tao Chen,Ji Ping Wang
A series of functional fibers have been prepared by modifying a commercially available polyacrylonitrilefiber (PANF) with polyamines such as ethylenediamine, tetraethylenepentamine and hyperbranched polyethylenimine (HPEI), and then used to coordinate with Fe3+, respectively, to produce Fe-modified PAN fiber complexes. The chemical structures of modified PANFs were verified by Fourier transform infrared spectroscopy (FT-IR). X-ray Diffraction (XRD) characterization showed that the inner crystal region of PANF was damaged during the introduction of amine groups.. Organic elemental analysis results to a certain extent demonstrate the success of modification. The coordination of Fe3+ was verified by Energy Dispersive Spectroscopy (EDS). The Fe-modified PAN fiber complexes were were used to eliminate the color from synthetic reactive dye wastewater (SRDW, including Reactive Red 195, RR 195) under normal conditions. This study presents a valuable route towards wastewater treatment in dyeing and finishing.
研究领域:
环境科学
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材料科学
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DOI
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Jinqiu Li,Ning Du,Ruifang Guan,Songfang Zhao
Chiral recognition of amino acid enantiomers is critical in enhancing drug efficacy, detecting disease markers, and understanding physiological processes. Enantioselective fluorescent identification has gained attention among researchers due to its nontoxicity, easy synthesis, and biocompatibility. In this work, chiral fluorescent carbon dots (CCDs) were produced through a hydrothermal reaction followed by chiral modification. The fluorescent probe, Fe3+-CCDs (F-CCDs), was constructed by complexing Fe3+ with CCDs to differentiate between the enantiomers of tryptophan (Trp) and determine ascorbic acid (AA) through an “on–off–on” response. It is worth noting that l-Trp can greatly enhance the fluorescence of F-CCDs with a blue shift, whereas d-Trp does not have any effect on the fluorescence of F-CCDs. F-CCDs showed a low limit of detection (LOD) for l-Trp and l-AA, with an LOD of 3.98 and 6.28 μM, respectively. The chiral recognition mechanism of tryptophan enantiomers using F-CCDs was proposed based on the interaction force between the enantiomers and F-CCDs, as confirmed by UV–vis absorption spectroscopy and density functional theory calculations. The determination of l-AA by F-CCDs was also confirmed through the binding of l-AA to Fe3+ to release CCDs, as seen in UV–vis absorption spectra and time-resolved fluorescence decays. In addition, AND and OR gates were constructed based on the different responses of CCDs to Fe3+ and Fe3+-CCDs to l-Trp/d-Trp, demonstrating the significance of molecular-level logic gates in drug detection and clinical diagnosis.
研究领域:
生物化学
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医学诊断
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药物研发
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Peng Shen,Xingjie Wang,Lijun Wang,Xuejin Zhang,Zhixin Jia,Jingshun Zhuang,Junli Ren,Minmin Chang
Cellulose-based porous materials have attracted plenty of attention in advanced materials due to their satisfactory porosity, biocompatibility, and sustainability. However, pore collapse caused by hydrogen bonds between cellulose results in poor elasticity of materials, hindering their further applications. Furthermore, most cellulose-based porous materials use nanocellulose as basic materials, and require complicated production process. Therefore, exploiting highly elastic and low-cost cellulose-based porous materials by simple strategies remains a major challenge. Herein, a layered carboxymethyl cellulose (CMC)-based material was innovatively prepared with excellent elasticity and underwater stability based on the synergistic effect of directional freezing and Fe 3+ /ethanol/H 2 O immersing. Specifically, directional freezing makes the homogeneous CMC solution become the skeletons of layered and porous materials. And the coordination between Fe 3+ and CMC endows the material with excellent elasticity and underwater stability. Crucially, ethanol/H 2 O plays a significant role in regulating the structure and properties of this material. The material can withstand 1000 cycles compression tests (94.35 % height retention at 40 %), and can maintain compressive resilience when submerged underwater for more than 72 h. Surprisingly, the dry porous materials after being immersed in water still have good compressive resilience. This method can provide a potential material for future applications in pressure sensing and wearable devices.
研究领域:
材料科学
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高分子科学
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传感器技术
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生物相容材料
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Chunyang Wang,Fangfang Wang,Jiankang Liu,Wenbo Yi,Qian Zhao,Yu Liu
External injuries that restrict movement require hydrogel sensors capable of delivering drugs to the corresponding skin for therapy and concurrently motion monitoring to assist in restoring motor function. In this study, we incorporated gallic acid (GA)-Fe 3+ –H 2 O 2 Fenton-like dynamic redox autocatalysis into hydrogels to generate significant quantities of hydroxyl radicals and accelerate gelation times (to seconds). The synthesized GA-Fe 3+ / polyacrylic acid (PAA) hydrogels possess copious hydrogen and metal-coordination bonds due to the incorporation of GA and Fe 3+ , imparting self-healing capabilities and antibacterial properties in addition to a maximum tensile strength of 50.37 kPa, a self-adhesive strength of 17.53 kPa, 100 % UV resistance, and a conductivity of 1.401 S m −1 . Hydrogels employed in wearable-sensing application exhibit high sensitivities, repeatabilities, and rapid response properties, enabling precise monitoring of human movement. Additionally, drug-loaded hydrogels exhibited up to 22.31 % drug release during 1 h of transdermal drug delivery. A significant reduction in drug release during transdermal experiments with drug-loaded hydrogels following motion stretching indicates that the drug had been successfully released during tensile sensing testing. Consequently, this autocatalytic system presents promising prospects for developing hydrogels suitable to transdermal drug-delivery motion-sensing for movement recovery caused by external injury.
研究领域:
材料科学
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生物医学工程
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药剂学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
·
IF 5.8
Hongji Chen,Yan Wu,Huiping Xiao,Hongfei Yin,Qian Fei,Chunyu Yuan,Qiuyu Zhao,Yujin Zhang,Yongzheng Zhang,Woonming Lau
Owing to the low conversion efficiency of Fe 3+ to Fe 2+ during the peroxymonosulfate (PMS) activation process, the design of an efficient Fenton-like catalyst is still a challenge. In this work, 0D/2D Co-doped Fe 2 O 3 /g-C 3 N 4 (CNCFO) composite catalysts were constructed for organic pollutant degradation, where the Co-doping not only boosts the conversion efficiency of Fe 3+ to Fe 2+ , but also acts as active site for PMS activation. Among them, CNCFO2 showed excellent catalytic performance, where 96.4% of MO could be degraded within 45 s. X-ray photoelectron spectroscopy (XPS) confirmed that the cobalt doping promoted the cycle of Fe 3+ /Fe 2+ , which was responsible for the enhanced PMS activation. Meanwhile, the good stability and reusability of CNCFO2 itself provide opportunities for its potential practical applications. Based on systematical characterizations, the Z-scheme photo-Fenton mechanism was proposed. This study offers a fresh perspective on the advancement of designing highly efficient Fenton-like catalyst for applications in the field of environmental purification.
研究领域:
环境科学
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催化材料
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Weimin Peng,Hui Zhu,Cheng Zhou,Maxim S. Molokeev,Andrey O. Zolotov,Zhi Zhou,Mao Xia
Near-infrared (NIR) emitting phosphor-converted LEDs (pc-LEDs) have garnered significant interest due to their promising applications in diverse fields utilizing NIR spectroscopy. Fe 3+ ions, as promising NIR activators, possess the advantages of being nontoxic and cost-effective, making them ideal candidates for NIR emission. In this work, NaAl 11-x O 17 : xFe 3+ phosphors were successfully synthesized, exhibiting a broad NIR emission band ranging from 650 to 850 nm, with the peak emission centered at approximately 770 nm. The phosphors demonstrate a high external quantum efficiency (EQE = 54.01 %) and excellent thermal stability. Distinct emission profiles were observed under three different excitation wavelengths, and four luminescent sites were discussed through low-temperature emission spectra. Furthermore, the electroluminescence (EL) spectrum of the fabricated pc-LEDs shows a strong spectral overlap with the absorption band of phytochrome P fr , highlighting their great potential for plant lighting applications.
研究领域:
材料科学
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光电子学
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园艺照明
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发光材料
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Junyan Guo,Mohammad Rizwan Khan,Naushad Ahmad,Wanli Zhang,Lanhuan Meng
Chitosan (CS) films functionalized with cinnamaldehyde (CIN)-derived Schiff base and Fe 3+ coordination were developed for pH-responsive antimicrobial food packaging. The Schiff base-Fe 3+ crosslinking system enhanced tensile strength by 39.59% and reduced water vapor permeability by 11.25%, while imparting pH-triggered CIN release via acid-hydrolyzable imine bonds. Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analysis confirmed uniform dispersion of CIN/Fe and improved crystallinity. The films demonstrated bactericidal activity against foodborne pathogens (89.52% for Escherichia coli ATCC 25922, 82.98% for Staphylococcus aureus ATCC 25923) combined with moderate 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) scavenging (37.41% at 30 min), suggesting primary application in antimicrobial packaging. In fruit preservation trials, strawberries and passion fruit coated with CS/CIN/Fe films showed 33.17% and 29.36% lower weight loss, respectively, extending shelf life by suppressing respiration-driven spoilage. Cytotoxicity (<0.21% hemolysis) and biocompatibility (>80% cell viability) validated safety. This work presents a sustainable strategy for intelligent packaging by integrating dynamic Schiff base-metal coordination, addressing both food waste and plastic pollution.
研究领域:
食品科学与技术
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材料科学
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活性包装
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可持续农业
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高分子化学
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DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2020
·Vol. 27
·期 22
·27849-27858
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IF 3.056
Ou Qi,Xu Shuxia,Long Yuanli,Zhang Xinfeng
The development of efficient solar driven catalyst for the degradation of antibiotics has become increasingly important in environmental protection. However, the reported efficient photocatalysts for antibiotic degradation are limited. In this work, porous Fe 3+ -doped graphitic carbon nitride (g-C 3 N 4 ) with outstanding photocatalytic ability is synthesized and then used as the photocatalyst for the efficient degradation of sulfadiazine (SDZ) under visible light. A series of characterization results indicate that Fe 3+ is successfully doped into the interlayer of g-C 3 N 4 and is stabilized in g-C 3 N 4 by Fe-N coordination bond. The SEM, DRS and ESI and transient photocurrent results demonstrated that Fe 3+ -doped g-C 3 N 4 has a porous structure, a low band gap, improved separation efficiency of photogenerated electron and holes as well as a wider light absorption range. Such improved physical and chemical properties greatly enhanced the photocatalytic ability. Using Fe 3+ -doped g-C 3 N 4 for photocatalytic degradation of SDZ under white light, almost complete degradation of SDZ was achieved with a degradation efficiency as high as 99.8% (whereas only 52.1% for bulk g-C 3 N 4 ) within 90 min. The degradation was mainly ascribe to 1 O 2 during the irradiation, and also a small amount of •O 2 − , OHand h + are involved in the degradation process. The Fe 3+ -doped g-C 3 N 4 was applicable for the degradation of a wide range of antibiotic pollutants.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2018
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IF 6.735
Jinxin Liu,Runrun Wu,Runxin Gu,Fengxian Qiu,Jianming Pan
Fabrication of chitosan-based composites without tedious procedures and significant biological hazard arising from using glutaraldehyde in the Schiff base reaction is highly needed. An environmentally friendly chitosan tablet is fabricated using Fe 3+ -mediated chitosan complexes via metallo-supramolecular chemistry. The structural properties of the material were investigated by SEM, FTIR, Raman and XRD, and the results indicated that Fe 3+ could chelate with chitosan via a “hide-and-seek” strategy to form well crosslinked polymer network. Moreover, the swelling behavior of the chitosan tablet showed that maximum swell ability achieved at pH 7.4. In addition, the chitosan tablet displayed pH-stimulated release properties, and its construct (i.e. chitosan-Fe 3+ complexes) was released efficiently at pH 1.0. Furthermore, the cytotoxicity experiments confirmed that chitosan tablet was compatible with human cell. Based on these results, we demonstrate here that the obtained chitosan tablet would be an oral iron supplementation potentially for treatment of iron deficiency anemia (IDA).
研究领域:
材料科学
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生物医学工程
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药学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Yi Tian,Ping Yang,Xiao Zhang
Dual-mode detection of environmentally relevant metal ions remains a significant challenge using highly stable and sensitive red-emissive carbon dots. This work presents a one-pot synthesis of red-emitting carbon dots (CDs) using p-phenylenediamine and Na 2 SO 4 . Highly stable red photoluminescence (650 nm) was observed via the synergistic effect of Na + and SO 4 2- ions, in which the CDs revealed a photoluminescence quantum yield of 45.9% in ethanol. The CD sample prepared using optimized conditions (sample 2-CDs) served as a versatile probe for the dual-mode Cu 2+ and Fe 3+ detecting in water. Colorimetry detection was finished in solutions, by smartphone, and in filter paper. As for Cu 2+ , the detection limits reached 0.013 μM (fluorometry) and 1.65 nM (smartphone colorimetry). A portable test paper based on 2-CDs achieved a detection limit of 0.517 μM for Cu 2+ . In the case of Fe 3+ , the corresponding detection limits were 1.5 μM (fluorometry) and 76.9 nM (colorimetry). Fluorescent degradation kinetics by Cu and Fe ions were discussed in detail. The sulfate ions form a multifunctional protective layer that enhanced hydrophilicity, passivated surface defects, and resulted in the CDs with remarkable photothermal stability (retaining the initial intensity of 93% after 120 min of ultraviolet/boiling) and long-term storage stability (47.2% retention after 300 days). These results supplied a novel strategy for creating high performance red-emissive CDs, paving the way for their practical application in on-site environmental monitoring.
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高影响因子
CHEMICAL PHYSICS
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2026
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IF 2.8
Shuo Huai,Cong Xu,Jie-Ping Wang,Ting Lu,Guang-Yue Li
The catalytic oxidation of cellulose to formic acid (FA) using iron-based catalysts represents a promising green technology. However, the role of Fe 3+ is often oversimplified as a mere redox electron-transfer mediator, and the detailed mechanism remains unclear. In this study, a combined experimental and theoretical approach was employed to investigate the dual catalytic mechanism of Fe 3+ in the catalytic oxidation of cellulose. The product yield and structural evolution of solid residues were analyzed under varying reaction times and Fe 3+ concentrations. At the optimal catalyst concentration 0.05 wt%, Fe 3+ not only disrupts cellulose crystallinity by synergistically with H + and suppresses deleterious acid-induced intermediate aggregation, but also governs the selective oxidation of liquid-phase intermediates to FA, achieving a carbon yield of 56.72%. Density functional theory calculations reveal that the identified Fe O complexes significantly reduce the bond-breaking energy of key C C bonds in intermediates, rationalizing the observed synergistic depolymerization-oxidation pathway.
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DOI
高影响因子
危险品化学品经营许可证（带存储）