Nanomaterials
·
2024
·Vol. 14
·期 10
·866
·
IF 4.4
Guiming Liu,Zhao Huang,Jiujie Xu,Bowen Zhang,Tiesong Lin,Peng He
In the evolving landscape of portable electronics, there is a critical demand for components that meld stretchability with optical transparency, especially in supercapacitors. Traditional materials fall short in harmonizing conductivity, stretchability, transparency, and capacity. Although poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) stands out as an exemplary candidate, further performance enhancements are necessary to meet the demands of practical applications. This study presents an innovative and effective method for enhancing electrochemical properties by homogeneously incorporating Ru(III) into PEDOT:PSS. These Ru(III) PEDOT:PSS complexes are readily synthesized by dipping PEDOT:PSS films in RuCl3solution for no longer than one minute, leveraging the high specific capacitance of Ru(III) while minimizing interference with transmittance. The supercapacitor made with this Ru(III) PEDOT:PSS complex demonstrated an areal capacitance of 1.62 mF cm−2at a transmittance of 73.5%, which was 155% higher than that of the supercapacitor made with PEDOT:PSS under comparable transparency. Notably, the supercapacitor retained 87.8% of its initial capacitance even under 20% tensile strain across 20,000 cycles. This work presents a blueprint for developing stretchable and transparent supercapacitors, marking a significant stride toward next-generation wearable electronics.
研究领域:
材料科学
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电子工程
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DOI
PubMed
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Wan Xu,Bingqian Wang,Yuan Sun,Xiaojian Ou,Yuanjun Sun,Peng Zhang,Zhenbin Chen
Ruthenium, one of the platinum group elements, plays a crucial role in industrial development, and it is important to develop a material to separate and purify ruthenium with high efficiency to ensure its supply. Herein, a thermoresponsive Ru(III)-imprinted polymer (Ru(III)-TIIP) was prepared by combining thermoresponsive technology, Pickering emulsion technology, and imprinted technology. The Ru(III)-TIIP could regulate its structure by controlling the external temperature and maintained good adsorption and separation performance. The structure and performances of Ru(III)-TIIP were tested and evaluated by Fourier transform infrared, scanning electron microscopy, energy-dispersive spectrometry, transmission electron microscopy, specific surface area, porosity analysis, zeta potential, X-ray photoelectron spectroscopy, thermogravimetric analysis, and inductively coupled plasma-atomic emission spectrometry. The results showed that the maximum adsorption capacity (Q) of Ru(III)-TIIP was 0.2203 mmol/g under 33 °C. The maximum desorption rate (D %) was 78.1%, which was reached at 25 °C. When Fe(III) was used as the interfering ion, the separation degree (R) of Ru(III)-TIIP was 3.2. Meanwhile, the study of the adsorption process of Ru(III)-TIIP to Ru(III) was more suitable to be expressed by pseudo-first-order kinetics and the Langmuir model. When Ru(III)-TIIP was applied to the platinum group catalyst leach solution, the content of platinum group elements ranged from 53.72 to 82.09% after one adsorption/desorption cycle. In addition, Ru(III)-TIIP had maintained 66.14 and 81.25% of the original capacity for Q and R after 11 adsorption/desorption cycles.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2016
·
IF 5.31
Hong Zhang,Xiaoyu Yang,Zhaohui Liu,Yanzhao Yang
An arisen and environment-friendly method of cloud point extraction (CPE) which involved Octylphenoxypolyethoxyethanol (TX-114) as surfactant and 2-Mercaptobenzothiazole-functionalized ionic liquid as extractant was carried out to separate Ru(III) from aqueous phase to bottom surfactant phase for the first time. A host of variable ( e.g. , the extractant concentration, hydrochloric acid concentration, nitric acid concentration, TX-114 mass fraction, TX-114 volume and sodium chloride concentration) were evaluated and optimized to investigate the extraction behavior. At optimized experimental conditions, the extraction percentage of Ru(III) was found to be 82%, together with the enrichment factor of 40. A special complexation extraction mechanism of Ru(III) in CPE process was studied systemically and confirmed via job method, UV–vis spectrum and FT-IR spectrum in detail. Taking together, the rational-designed functional ionic liquid as a novel extractant exhibited superior extractability for Ru(III) in CPE system.
研究领域:
化学
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环境科学
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2019
·Vol. 43
·期 33
·12907-12915
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IF 3.069
Fuyou Du,Qiulian Zeng,Zhan Lai,Zhenfang Cheng,Guihua Ruan
Herein, a novel fluorescent probe was developed for the selective and sensitive detection of triclosan (TCS), which is based on turn-on fluorescence of quenched nitrogen silicon doped graphene quantum dot and ruthenium(III) ion (Si-GQDs/Ru3+) systems. Ru3+ is combined with Si-GQDs which thereby quenches the fluorescence, while the Si-GQDs/Ru3+ complex can be dissociated after the addition of TCS, resulting in fluorescence turn-on. The recovered fluorescence intensity was proportional to the concentration of TCS. The linear range of the probe for TCS detection was 500–25 000 ng L−1, with a low detection limit of 173 ng L−1. This detection platform has been successfully applied for the detection of TCS in both toothpaste and water samples.
研究领域:
分析化学
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环境科学
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材料科学
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DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2017
·
IF 3.151
Jianxian Zeng,Zhe Zhang,Zhihui Dong,Panfeng Ren,Yuan Li,Xiao Liu
An ion-imprinted blend membrane (Ru(III)-IIM) for selectively adsorbing ruthenium(III) from aqueous solutions was fabricated by blending poly(methyl methacrylate- co -2-hydroxyethyl methacrylate) P(MMA-HEMA) with polyvinylidene fluoride (PVDF). Firstly, P(MMA-HEMA) was successfully synthesized and characterized. Subsequently, combining with the ion-imprinting technology, a series of Ru(III)-IIMs were fabricated via the non-solvent induced phase inversion method. The results indicated that increasing the polymer concentration and extending the evaporation time led to transform the cross-section of membranes from macrovoid structure to a finger-like or tear-like even sponge structure, and also decreased the water flux. The contact angle tests showed the hydrophilicity of Ru(III)-IIMs were effectively improved by blending with P(MMA-HEMA), compared with the PVDF membrane. The adsorption experiments showed that the adsorption capacity of ruthenium(III) onto the Ru(III)-IIM was pH-dependent, and the maximum adsorption capacity reached 42.31 mg g − 1 at pH 2.0. The adsorption process was well described by the pseudo-second-order kinetic model and the Langmuir isotherm model. The selective adsorption was studied by using Ni(II) as an interfering ion. Compared with the non-imprinted membrane, the Ru(III)-IIM showed a higher selectivity for Ru(III), with a selectivity coefficient of 6.0 for Ru(III)/Ni(II). In addition, the Ru(III)-IIM had a high reusability and still maintained about 95% of its initial adsorption capacity for Ru(III) after eight cycles.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
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2021
·
IF 3.935
Ying Cheng,Jing Tang,Xue Chen,Fang Wang,Zilin Chen
Ten-eleven translocation protein 1 (TET1) is one member of TET proteins family which plays a key role in dynamic DNA methylation-demethylation process. Herein, a novel biosensor was constructed for TET1 detection and its inhibitors screening utilizing restriction digestion of endonuclease enzyme MspI. Half-methylated oligonucleotide (5mC DNA) was used as target and Ru(NH 3 ) 6 3+ as electrochemical signal probe. After the treatment by TET1 and T4 β-glucosyltransferase (T4 β-GT), target oligonucleotide would not be recognized and digested. If there was no TET1, the target would be digested and the response of biosensor decreased greatly. The current difference of biosensor with and without the incubation with TET1 was therefore dependent on the concentration of TET1. To increase sensitivity of the biosensor, nanostructured film at electrode surface and nanoparticles modified oligonucleotides were employed as signal amplification elements for Ru(NH 3 ) 6 3+ recycling. Finally, this biosensor showed high performance with a wide linear range of TET1 concentration from 3.5–21 ng/μL and a low detection limit of 0.33 ng/μL, which is superior to other existing methods. The inhibition effects of Bobcat339 on TET1 was successfully proved by our biosensor with an IC 50 of 38 μM. Not only that, but the feasibility of the biosensor for inhibitors screening was evaluated and further confirmed by other compounds including two anticancer drugs and three active ingredients of traditional Chinese medicine.
研究领域:
生物化学
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分子生物学
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分析化学
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DOI
PubMed
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2019
·Vol. 30
·期 7
·1865-1877
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IF 2.162
Jianxian Zeng,Zhe Zhang,Hu Zhou,Guoqing Liu,Yuan Liu,Lingwei Zeng,Jian Jian,Zhengqiu Yuan
While conventional approaches have been studied for removal of ruthenium(III) ions (Ru(III)), this work focuses on the applicability of ion-imprinted poly(methyl methacrylate-vinyl pyrrolidone)/poly(vinylidene fluoride) blending membranes (Ru(III)–ion-imprinted membrane[IIM]) for selective removal of Ru(III) from acidic water solutions. In order to measure the effectiveness of these imprinted membranes, after fabrication, binding experiments were done with aqueous Ru(III) solutions. The results showed that Ru(III)-IIMs were fabricated successfully at various blending ratios, and their chemical components, microstructures, hydrophilicity, and water fluxes were measured. In pH range 0.5 to 5.0, binding capacity ( Q e ) of Ru(III) onto Ru(III)-IIM increases remarkably with pH and then reaches to a maximum value (53.52 mg/g) at pH 1.5. After that, Q e gradually decreases. Compared with a nonimprinted membrane, Ru(III)-IIM demonstrates higher selectivity for Ru(III) at pH 1.5 in the presence of Ni(II) and Cu(II) ions, and its selectivity coefficients for Ru(III)/Ni(II) and Ru(III)/Cu(II) are 3.70 and 3.32, respectively. Also, Ru(III)-IIM shows a good chemical stability and reusability. C─N and C═O bonds within poly(vinyl pyrrolidone) segments of poly(methyl methacrylate-vinyl pyrrolidone) (P(MMA-VP)) participate the uptake of Ru(III). Ru(III)-IIM exhibited excellent hydrophilicity and Ru(III) selective adsorption ability and reusability and has potential to be used for Ru(III) removal from acidic water solutions.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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2022
·Vol. 169
·期 2
·027504
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IF 4.386
Zaiqiong Liu,Jinpeng Tao,Zhenyu Zhu,Yanli Zhang,Hongbin Wang,Pengfei Pang,Haibo Wang,Wenrong Yang
An ultrasensitive electrochemical assay for T4 polynucleotide kinase (T4 PNK) activity and inhibition was developed based on magnetic Fe3O4@TiO2 core–shell nanoparticles and gold nanoparticles hybrid probe (Fe3O4@TiO2-dsDNA-AuNPs) modified magnetic gold electrode (MGE). Fe3O4@TiO2-dsDNA-AuNPs hybrid probe was formed via DNA hybridization between phosphorylated DNA S1 modified Fe3O4@TiO2 and complementary DNA S2 assembled AuNPs. [Ru(NH3)6]3+ was used as an electrochemically active indicator to enhance the electrochemical signal. The proposed method is sensitive for T4 PNK activity assay with a linear range of 0.0001 to 10 U ml−1 and low detection limit of 0.00003 U ml−1. This strategy can be used to screen the T4 PNK inhibitors, holding a great potential for discovery of nucleotide kinase-target drug and early clinical diagnosis of cancer.
研究领域:
生物化学
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电化学
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纳米技术
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分子生物学
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癌症诊断
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产品关联
DOI
高影响因子
ANALYTICAL SCIENCES
·
2017
·Vol. 33
·期 5
·585-590
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IF 1.228
Zhu Xiaoqian,Huang Min,Li Jiao,He Hanping,Zhang Xiuhua,Wang Shengfu
In this paper, a novel electrochemical sensor was developed for the rapid detection of G-G mismatched DNA based on hexaammineruthenium(III) chloride ([Ru(NH 3 ) 6 ]C l3 ) as a redox indicator. The sensor platform was constructed by immobilizing small molecules (NC-linker) on the gold electrode via amide bonds. The as-prepared NC-linker as the nucleic acids recognition molecule can interact with the G base of DNA. After the sensor was incubated with G-G mismatched DNA, the double-stranded DNA (dsDNA) acted as carriers of the signal tags-[Ru(NH3)6]Cl3, which resulted in a remarkable electrochemical signal. More binding of [Ru(NH 3 ) 6 ]C l3 led to increases of the electrochemical signal. Other mismatched DNA produced only a low response, as well as complementary DNA. Thus G-G mismatched DNA can be easily discriminated from other mismatched and complementary DNA based on the sensor. Furthermore, the method was simple, rapid and repeatable for the detection of G-G mismatched DNA. The selective detection of target dsDNA was achieved by a relative current ratio of the target and control DNA. These results demonstrated that this strategy could provide great promise for the rapid and specific detection of other sequence-specific DNA.
研究领域:
电化学
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分子生物学
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分析化学
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DOI
PubMed
高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2017
·Vol. 40
·期 18
·3696-3702
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IF 2.557
Xuemei Li,Xiqian Li,Haijiao Zheng,Jiutong Ma,Guoxing Xu,Qiong Jia
Immobilized metal affinity chromatography has drawn great attention as a widespread separation and purification approach. In this work, ruthenium was firstly introduced into the preparation of immobilized metal affinity chromatography considering its affinity to N,O-donor ligands. A β-cyclodextrin-functionalized poly(glycidyl methacrylate-ethylene dimethacrylate) monolith was designed and employed as the supporting material in immobilized metal affinity chromatography. Thiosemicarbazide was introduced into the synthesis process, which not only acted as a bridge between β-cyclodextrin and glycidyl methacrylate, but also chelated with ruthenium because of its mixed hard-soft donor characteristics. The developed monolithic ruthenium(III)-immobilized metal affinity chromatography column was utilized for the adsorption and separation of hippuric acid, a biological indicator of toluene exposure. To achieve high extraction capacity, the parameters affecting the extraction efficiency were investigated with an orthogonal experiment design, L9 (3 4 ). Under the optimized conditions, the enrichment factor of hippuric acid was 16.7-fold. The method reproducibility was investigated in terms of intra- and interday precisions with relative standard deviations lower than 8.7 and 9.5%, respectively. In addition, ruthenium(III)-immobilized metal affinity chromatography material could be used for up to 80 extractions without an apparent change in extraction recovery.
研究领域:
分析化学
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环境科学
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DOI
PubMed
高影响因子
ANALYST
·
2014
·Vol. 139
·期 17
·4264-4269
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IF 3.906
Yuanyuan Chang,Yaqin Chai,Shunbi Xie,Yali Yuan,Juan Zhang,Ruo Yuan
In the present work, we constructed a new label-free “inter-sandwich” electrochemical aptasensor for thrombin (TB) detection by employing a cleavage-based hybridization chain reaction (HCR). The designed single-stranded DNA (defined as binding DNA), which contained the thrombin aptamer binding sequence, a DNAzyme cleavage site and a signal reporter sequence, was first immobilized on the electrode. In the absence of a target TB, the designed DNAzymes could combine with the thrombin aptamer binding sequence via complementary base pairing, and then Cu2+ could cleave the binding DNA. In the presence of a target TB, TB could combine with the thrombin aptamer binding sequence to predominantly form an aptamer–protein complex, which blocked the DNAzyme cleavage site and prevented the binding DNA from being cleaved by Cu2+-dependent DNAzyme. As a result, the signal reporter sequence could leave the electrode surface to trigger HCR with the help of two auxiliary DNA single-strands, A1 and A2. Then, the electron mediator hexaammineruthenium (III) chloride ([Ru(NH3)6]3+) was embedded into the double-stranded DNA (dsDNA) to produce a strong electrochemical signal for the quantitative measurement of TB. For further amplification of the electrochemical signal, graphene reduced by dopamine (PDA-rGO) was introduced as a platform in this work. With this strategy, the aptasensor displayed a wide linearity in the range of 0.0001 nM to 50 nM with a low detection limit of 0.05 pM. Moreover, the resulting aptasensor exhibited good specificity and acceptable reproducibility and stability. Because of these factors, the fabrication protocol proposed in this work may be extended to clinical application.
研究领域:
生物化学
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分析化学
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生物传感器
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电化学
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DOI
PubMed
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 33
·20046-20056
·
IF 3.361
Yuqi Huang,Shuhui Zhao,Wenxiu Zhang,Qiuyue Duan,Qi Yan,Hu Fu,Liang Zhong,Gang Yi
Nucleic acids are genetic materials in the human body that play important roles in storing, copying, and transmitting genetic information. Abnormal nucleic acid sequences, base mutations, and genetic changes often lead to cancer and other diseases. Meanwhile, methylated DNA is one of the main epigenetic modifications, which is considered to be an excellent biomarker in the early detection, prognosis, and treatment of cancers. Therefore, a multifunctional electrochemical biosensor was constructed with sturdy tetrahedral tripods, which assisted multiple tandem hairpins through base complementary pairing and effective ultra-sensitive detection of targets (DNA, microRNA, and methylated DNA). In the experiments, experimental conditions were optimized, and different DNA concentrations in serum were detected to verify the sensitivity of the biosensor and the feasibility of this protocol. In addition, microRNA and DNA methylation were detected through different designs of tetrahedral tripods (TTs) that capture probes to prove the superiority of this scheme. A sturdy pyramid structure of TTs extremely enhanced the capture efficiency of targets. The targets triggered the one-step isothermal multi-tandem amplification reaction by incubating multiple hairpin assemblies. To our knowledge, a combination of two parts, which greatly reduced background interference and decreased non-specific substance interference, has appeared for the first time in this paper. Moreover, the load area of electrochemical substances was significantly increased than that in previous studies. This greatly increased the detection range and detection limit of targets. The electrochemical signal responses were generated in freely diffusing hexaammineruthenium(III) chloride (RuHex). RuHex could adhere to the DNA phosphate backbone by a powerful electrostatic attraction, causing increased current responses.
研究领域:
生物传感器
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电化学
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纳米技术
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分子生物学
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癌症诊断
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表观遗传学
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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）