SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2024
·
IF 4.3
Tianfeng Ma,Yanyan Jia,Lin Shi,Xiaohua Xu,Kun Zheng,Zijia Fu,Huan Wang,Yongchang Lu
Acetaminophen, also known as paracetamol (APAP), is a commonly used over-the-counter medication that is often used to treat headaches, toothaches, joint pain, muscle pain, and to lower body temperature. However, overdose can lead to liver damage, gastrointestinal distress, kidney damage, and cardiovascular disease. Therefore, it is very important to establish a method to quickly detect APAP. A novel “ON-OFF-ON” colorimetric and fluorescence dual-signal sensing system was constructed for the quantitative detection of APAP based on 5,10,15,20-tetrakis(4-sulphonatophenyl) porphyrin (TSPP) dual-signal probe. The absorbance and fluorescence intensity of TSPP respectively were quenched when Fe 3+ was introduced into TSPP solution. At this point, the color of the corresponding solution changed from red to green. The absorbance and fluorescence intensity of TSPP respectively were restored when APAP was added to the TSPP-Fe 3+ system. At this time, the color of the solution changed from green to colorless. Therefore, an “ON-OFF-ON” dual-signal sensing study of APAP were constructed using TSPP as the colorimetric and fluorescent probe. The proposed colorimetric sensing system had a wide linear range in the 13.12 mM ∼ 23.20 mM with 0.11 mM of limit of detection (LOD, S/N = 3). And the proposed fluorescence sensing system had a wide linear range in the 3.45 mM ∼ 12.50 mM and 41.67 mM ∼ 65.22 mM with 0.83 mM of limit of detection (LOD, S/N = 3). The dual-signal sensing system were applied to the APAP detection of real samples.
研究领域:
分析化学
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药物分析
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生物医学
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产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 47
·期 3
·1031-1034
·
IF 3.925
Hao Guo,Yinsheng Liu,Ning Wu,Liping Peng,Xiaoqin Wei,Zongyan Lu,Zhiguo Yu,Wu Yang
A triazine-based fluorescent COF (MaTa-COF) was synthesized from inexpensive reactants. The obtained MaTa-COF has a large BET-specific surface area of 621.15 m2 g−1 and can be used as a highly sensitive Fe3+ fluorescent probe with a wide linear range of 0–250 μM and a low detection limit of 6.18 × 10−2 μM (Ksv = 2.34 × 108 M−1). Furthermore, the probe presented a good recyclability performance.
研究领域:
材料科学
·
分析化学
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产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Baozhen Li,Jun Zuo,Tiantian Liu,Mengjia Zhu,Kun Jiang,Zhuangzhuang Ren,Hua Yang,Yu Tang,Li Tan,Lizhi Wu
The mildly selective oxidation of methane to oxygenates in the aqueous phase is of great significance for methane upgrade, while it suffers low conversion and multiple oxidation products. Fe-based zeolite, especially Fe/ZSM-5 with heteroatom Al is the most widely investigated catalyst for this reaction, while the Fe supported pure Si-based zeolite without Al is rarely reported. Herein, a series of Fe-S-1 catalysts without introducing heteroatom Al is synthesized via facial dissolution-crystallization method and applied for methane selective oxidation to formic acid. The optimized 0.5Fe-S-1 shows a superior performance with the formic acid space time yield of 49751 µmol·g cat −1 ·h −1 and a liquid-phase formic acid selectivity of 93 % at 70 °C with H 2 O 2 as the oxidant, and present an excellent stability without obvious deactivation after five cycles, which outperforms all previously reported Al-free Fe/Silicalite-1 catalysts, and is comparable with conventional Fe/ZSM-5. Combined with multifarious characterizations including TEM, UV-Vis, Raman, NH 3 -TPD, Py-IR and XAS etc., two kinds of Fe species including the mononuclear tetrahedrally coordinated framework Fe 3+ species and mononuclear octahedral coordinated extra-framework Fe 3+ species are highly dispersed over Fe-S-1 even with a high Fe loading of 1.5 wt%, in which the framework Fe 3+ species content is positively correlated with the catalyst acidity and could provide acid sites to adsorb reactants and then extra-framework Fe 3+ species could activate methane/H 2 O 2 effectively. And the further EPR, in-situ FT-IR characterizations and control experiments demonstrates that the methane selective oxidation to formic acid follows a radical mechanism, in which ·CH 3 combines with ·OH or ·OOH to form CH 3 OH, and then further oxidized to HCOOH and finally over-oxidized to CO 2 .
研究领域:
催化化学
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环境化学
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材料科学
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绿色化学
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无机化学
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产品关联
DOI
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2016
·Vol. 302
·期 2
·1600359
·
IF 2.834
Lei Zhao,Jiahe Huang,Tao Wang,Weixiang Sun,Zhen Tong
A multiple shape memory and self-healing poly(acrylic acid)-graphene oxide-Fe 3+ (PAA-GO-Fe 3+ ) hydrogel with supertough strength is synthesized containing dual physically cross-linked PAA network by GO and Fe 3+ . The first GO cross-linked hydrogel can be reversibly reinforced by immersing in FeCl 3 /HCl and pure water and softened by immersing in HCl. The tensile strength is 2.5 MPa with the break strain of 700%. Multiple shape memory capability is found depending on this unique feature, the hydrogel can be fixed in four temporary shapes by adjusting the immersing time in FeCl 3 /HCl and pure water, and recovered in sequence by immersing in HCl. This hydrogel also exhibits perfect self-healing behavior, the cut as-prepared hydrogel is almost completely healed by immersing in FeCl 3 /HCl. Besides, the hydrogel shows enhanced electrical conductivity with the presence of GO and Fe 3+ . This supertough hydrogel provides a new way to design soft actuators.
研究领域:
材料科学
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化学工程
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纳米技术
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机械工程
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产品关联
DOI
高影响因子
Biomedical Materials
·
2024
·Vol. 19
·期 2
·025024
·
IF 3.9
Yibo Yang,Jia Zhang,Shihe Liu,Xin Zhang,Zhimin Bai,Shuai Wang,Kun Li,Ming Shi,Zhiwei Liu,Jidong Wang,Jian Li
The rapid, irreversible change of active Fe2+ to inactive Fe3+ after the Fenton reaction occurring reduces the chemodynamic therapeutic (CDT) effect. Therefore, manipulation of the tumor microenvironment to provide sufficient hydrogen peroxide (H2O2) while maintaining metal ion catalyst activity is critical for effective CDT. Here, β-Lapachone (LPC) was loaded by mesoporous silica nanoparticles (MSNs) and coated with polydopamine (PDA) to further chelate Fe3+ and link aptamer AS1411, and a pH-controlled released, chemotherapy-photothermal therapy (PTT)-enhanced CDT-small molecule therapy combination drug delivery system with passive and active tumor targeting was engineered (designated as β-LPC@MSN@PDA/Fe3+-AS1411, LMPFA). The results showed that LFMPA nanoparticles massively accumulated in tumor tissues to achieve tumor targeting through AS1411 mediating and enhanced permeability and retention (EPR) effect. Subsequently, PDA released Fe3+ and LPC through acid response to exhibited CDT and chemotherapeutic therapy. Meanwhile, the photothermal effect of PDA promoted the release of LPC from the pores of MSN. LPC exerted chemotherapy effect and cyclically producing of H2O2 by the catalysis of NQO1, which enhanced the CDT activated by Fe3+. In addition, while serving as a targeted ligand, AS1411 could also exhibit a small molecule therapeutic effect by binding to nucleoli of tumor cells. This unique nano delivery system achieved the combination of chemotherapy, PTT, enhanced CDT and small molecule therapy, and fought against malignant tumors synergistically through multi-target and multi-dimension.
研究领域:
生物医学工程
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肿瘤治疗学
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纳米医学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2020
·
IF 5.065
Xiaohui Cheng,Panpan Sun,Na Zhang,Shujin Zhou,Xia Xin
Supramolecular self-assembly is a noncovalent bond-based method to build complex ordered aggregates with specific functions. However, self-assembly based on metal nanoclusters (NCs) has been rarely studied because of the poor water solubility and silent fluorescence in a single-molecular state of metal NCs. Here, water-soluble silver NCs (NH 4 ) 9 [Ag 9 (mba) 9 ] (Ag 9 -NCs, H 2 mna = 2-mercaptonicotinic acid) were synthesized with phthalic acid (PA) to form hydrogels using the self-assembly strategy. Due to the formation of hydrogen bonds , hollow tubes appear in the hydrogel. For comparison, isophthalic acid (IPA) and terephthalic acid (TPA) are selected to self-assemble with Ag 9 -NCs in aqueous solutions. The result shows that only PA can form a strong phosphorescent hydrogel due to the ligand-to-metal charge transfer (LMCT) and ligand-metal-metal charge transfer (LMMCT). In addition, the hydrogel is used as an excellent sensor for Fe 3+ , and the detection limit, which is defined as the change of 10% of fluorescence intensity , is 0.611 μM. This work shows that a hydrogel was successfully prepared using a supramolecular self-assembly strategy and will become a candidate in the fields of biological sciences and sensors.
研究领域:
材料科学
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分析化学
·
生物传感
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产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2021
·
IF 3.08
Weisai Liu,Dapeng Li,Fei Wang,Xiaoyi Chen,Xuquan Wang,Yang Tian
A lanthanide metal-organic framework, {[Tb(FDA) 1.5 (DMF)]·DMF} n (Tb-FDA) was designed and prepared by mixing Tb 3+ and 2,5-furandicarboxylic acid (H 2 FDA) under solvothermal condition. The crystal structure of the complex was determined by single-crystal X-ray diffraction. The thermal stability and the luminescence properties of Tb-FDA were studied. The detection of organic molecules and cations and the interference of other analytes were considered and investigated in detail, revealing the excellent performance of Tb-FDA for sensing nitrobenzene (NB) and Fe 3+ with high efficiency, sensitivity and chemical stability. In addition, the sensing function possesses selectivity even with the existence of other analogous interfering substances. The mechanism of fluorescence quenching with NB and Fe 3+ was also given in this work.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2020
·
IF 3.232
Yecang Tang,Xin Zhou,Keke Xu,Xuemei Dong
The facile preparation of highly fluorescent polymer dots (PDs) still attracts substantial interest. Here, temperature/Fe 3+ dual-responsive PDs are synthesized under mild conditions via the amidation reaction and self-assembly between hyperbranched polyethyleneimine and 5-aminosalicylic acid. The prepared PDs display strong green fluorescence with quantum yield of 15.5% and 53.3% in water and dimethylsulfoxide, respectively. The PDs also possess unique features, including excellent solubility, solvent polarity-dependent emission, remarkable photostability, as well as good salt-tolerance. Interestingly, the fluorescence intensity of PDs exhibits a reversible and sensitive response to temperature within 20–65 °C, which renders the PDs useful as a thermometer probe. Importantly, Fe 3+ ion has the specific coordination ability toward the surface groups of PDs, leading to the aggregation and fluorescence quenching of PDs. Thus, the PDs are employed as a fluorescence probe for sensitive detecting Fe 3+ . The fluorescent intensity linearly decreases with increasing Fe 3+ from 2 to 60 μM. Besides, Fe 3+ concentration in river water samples is successfully assayed with this developed probe. The non-conjugated PDs with facile preparation, sensitive response to temperature and Fe 3+ may hold potential applications in environmental monitoring.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2016
·
IF 4.758
Wanchuan Ding,Ge Zhang,Hui Zhang,Jingkun Xu,Yangping Wen,Jie Zhang
Poly(9-fluorenecarboxylic acid) (PFCA) thin film was successfully fabricated onto the surface of indium tin oxide glass by one-step electropolymerization of commercially available 9-fluorenecarboxylic acid in boron trifluoride diethyl etherate. Meanwhile, PFCA thin film could specifically recognize Fe 3+ . Fe 3+ was generated by the oxidization of Fe 2+ in the presence of H 2 O 2 that was produced by biochemical reactions and resulted in fluorescence quenching of PFCA thin film. Furthermore, a sensing platform was designed for highly selective fluorescent detection of glucose. The qualitative and quantitative analysis of Fe 3+ , H 2 O 2 and glucose with detection limits of 1 μM, 2.9 μM and 3.4 μM respectively could be implemented by a simple, cost-effective, reusable, practical and multi-functional PFCA thin film. The fabricated PFCA-based chemo/bio sensing film for fluorescent detection of Fe 3+ in rice sample or glucose in serum sample was assessed. Satisfactory results indicate that this work will provide not only a new strategy for fluorescent detection of important substances in agricultural science, but also significant theoretical guidance and important reference value for the practical application and development of multi-functional sensing device.
研究领域:
分析化学
·
生物传感
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL ENGINEERING
·
2021
·Vol. 148
·期 1
·04021072
·
IF 1.86
Ting Su,Xiaoning Wang,Xinan Chen,Yan Cheng,Zhenkai Wang,Zhangxiong Wu,Winston Duo Wu,Sheng-Peng Sun
The ferric-nitrilotriacetate (Fe3+-NTA)-catalyzed homogenous Fenton-like reaction (i.e., Fe3+-NTA/H2O2) has received increasing interest for environmental applications, but its potential in degrading trichloroethylene (TCE) in groundwater still is not well known. The results of this study showed that Fe3+-NTA/H2O2 was more effective than other Fe3+-chelate/H2O2 processes (e.g., including ethylenediaminetetraacetate, ethylenediamine-N,N′-disuccinate, citrate, malonate, and tartrate) in degrading TCE in groundwater at natural pH (∼8.0). The effects of important parameters including the ratio of NTA∶Fe3+, and the dosages of Fe3+-NTA and H2O2 were investigated. Greater than 98% degradation efficiency of TCE in actual groundwater was obtained after 60 min of reaction time under the given conditions of NTA∶Fe3+=1.5∶1, 0.1 mM Fe3+-NTA, 5 mM H2O2, and pH 8.0. Hydroxyl radical (HO•) was responsible for the degradation of TCE, and the by-products were identified as formic acid and chloride ion (Cl−). Greater than 90% degradation efficiency of TCE in a sand column was achieved under dynamic conditions [0.5 mM Fe3+-NTA (1∶1.5), 4 mM H2O2, and hydraulic retention time of 4 h], resulting in stoichiometric ratios of ΔCl−∶ΔTCE and ΔTCE∶ΔH2O2 of ∼3∶1 and 4%, respectively. Compared with iron mineral (e.g., magnetite)-catalyzed Fenton-like processes, Fe3+-NTA/H2O2 led to much smaller consumption of H2O2 (at least 1 order of magnitude smaller). In addition, the buffering capacity of bicarbonate anions (HCO3−) in groundwater had a positive effect on the degradation of TCE by Fe3+-NTA/H2O2.
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Yaqin Nong,Xiaowei Su,Yinyue Xu,Qiujuan Chen,Xiaochen Liu,Xing Xia,Wenya Chen,Peiyuan Li,Rui Chen,Lini Huo
The pollution caused by heavy metals poses a significant threat to both the natural environment and human health. Therefore, developing straightforward and efficient analytical methods for detecting heavy metal ions is crucial. Given that Fe3+ plays an essential role in biological systems, researchers have worked hard to develop tests that specifically identify Fe3+ in clinical, pharmacological, and environmental settings. Seven novel coumarin amino acid-based Fe3+ fluorescent probes were designed and synthesized in this paper, and their structures were confirmed by 1H/13C NMR and high-resolution mass spectrometry. Spectroscopic tests demonstrated that three compounds (TAC-4, TAC-5, and TAC-7) identified Fe3+ specifically and in particular were able to distinguish between Fe3+ and Fe2+. For example, the fluorescent probe TAC-5 is characterized by its strong selectivity and sensitivity to Fe3+, as evidenced by a large change in fluorescence intensity, a rapid response time (30 seconds), a low detection limit (1.1 μM), and good solubility in water (up to 50%). Furthermore, TAC-5 was successfully used to detect changes in Fe3+ in zebrafish and HeLa Cells and to recognize Fe3+ in the presence of a chelating agent (EDTA). These results are expected to improve the development of new sensitive and selective fluorescence sensors for Fe3+.
研究领域:
分析化学
·
生物医学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Tianyao Wang,Wenming Xiong,Xingguo Tian,Xiaoyan Xu
MXene quantum dots (MQDs) exhibit vast application prospection the field of fluorometric sensing, but how to efficiently utilize MQDs for the selective detection of two components still remains a challenge. Herein, an off–on fluorescence sensor based on ethylenediamine-functionalized Ti 3 C 2 MQDs (EDA-MQDs) was designed to selectively and sequentially detect Fe 3+ and histamine. EDA-MQDs were synthesized using a facile ultrasonic-hydrothermal method and exhibited bright blue fluorescence with a quantum yield up to 21.12 %. Inner filter effect occurred between Fe 3+ and EDA-MQDs, resulting in fluorescence quenching at 460 nm. Meanwhile, on account of the strong chelation between imidazole group on histamine and Fe 3+ , the Fe 3+ concentration in the system was reduced, so the fluorescence of EDA-MQDs was recovered. Thus, the as-designed fluorescence probe was used for dual-detection of Fe 3+ and histamine in real samples with satisfactory sensitivity and selectivity. The proposed sensing method was verified to possess good linear response in the range of 1–100 μM and 1–60 μM with detection limits of 0.11 μM and 46 nM for Fe 3+ and histamine, respectively. This work provided a highly effective tool for selective detecting histamine and Fe 3+ as well as tendered a novel strategy for functionalized Ti 3 C 2 MQDs in food analysis.
研究领域:
分析化学
·
食品科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）