BIOSENSORS & BIOELECTRONICS
·
2017
·
IF 7.78
Jiali Zhu,Shan Sun,Kai Jiang,Yuhui Wang,Wenqing Liu,Hengwei Lin
Herein, a highly sensitive and selective fluorimetric nanoprobe for peroxynitrite (ONOO − ) detection based on photoinduced electron transfer (PET) from ferrocene (Fc) to carbon dots (CDs) is reported. The nanoprobe (named CDs-Fc) can be facilely constructed through covalently conjugating CDs and ferrocenecarboxylic acid . Further studies reveal that the energy level of highest occupied molecular orbital (HOMO) of the CDs is lowered with the addition of ONOO − due to its oxidation and nitration capabilities. Thus, an efficient electron transfer from Fc to the excited states of CDs could occur, leading to obvious fluorescence quenching . The fluorescence quenching of the nanoprobe was determined to be peroxynitrite concentrations dependence with a linear range between 4 nM to 0.12 μM. Thanks to the excellent optical properties of the CDs and efficient electron transfer efficiency from Fc to the excited CDs, the nanoprobe exhibits very high sensitivity to ONOO − with a limit of detection (LOD) of 2.9 nM. To the best of our knowledge, this LOD is the highest reported value till today for the detection of peroxynitrite. Besides, the nanoprobe also shows excellent selectivity to ONOO − among a broad range of substances, even including other reactive oxygen/nitrogen species (ROS/RNS). Finally, the nanoprobe was verified to be very low cytotoxicity, and was successfully applied for intracellular ONOO − detection. This work would provide a promising tool for the research of ONOO − in cytobiology and disease diagnosis.
研究领域:
分析化学
·
生物医学
✓ 已验证
DOI
高影响因子
ACS Omega
·
2021
·
IF 3.512
Chenggang Song,Fan Yang,Ruixuan Ji,Yin Lv,Zhong Wei
We report an amphiphilic block copolymer via poly(ethylene glycol) methyl ether-Dlabile-poly(caprolactone)-ferrocene (mPEG-Dlabile-PCL-Fc) to deliver anticancer drug doxorubicin (DOX). Lipase Novozyme-435 was used as a catalyst for ring-opening polymerization with ε-caprolactone, and an acid-sensitive Schiff base was used to connect the hydrophilic and hydrophobic parts; the ferrocene provided ferrous ions and was introduced at the end of the amphiphilic copolymer. The resulting copolymers were characterized by 1H NMR/13C NMR and could be self-assembled in an aqueous solution to form nanomicelles with PCL-Fc as a hydrophobic core and mPEG as a hydrophilic shell. Transmission electron microscopy showed that the micelles were spherical and nanosized before and after DOX loading. The blank micelles also showed good biocompatibility. The drug-loaded polymeric nanomicelles exhibited a positive anticancer effect relative to the copolymers without ferrocene; the therapeutic effect of drug-loaded micelles containing ferrocene was more obvious. In vitro drug release results also showed that the polymer had a good pH response. Confocal microscopy also showed that polymeric micelles can effectively deliver and release the drug; the polymer containing ferrocene also leads to significantly improved ROS levels in tumor cells. Ferrocene can effectively and synergistically inhibit tumor cells with DOX.
研究领域:
药剂学
·
肿瘤学
·
生物材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2023
·
IF 9.2
Qingyue Han,Suqing Wang,Wenhao Ren,Fangdan Zhang,Zhanbo Tang,Ju Wang,Haihui Wang
Poly (ethylene oxide) (PEO)-based electrolytes are under intense research because of their high safety, low cost and easy to scale fabrication. But several barriers, such as the poor ionic conductivity , slow reaction kinetics and uneven lithium deposition, still prevent their practical implementation. Herein, ferrocene (Fc) is utilized as a novel redox mediator filler for PEO based-electrolyte to optimize the performance of all-solid-state Li-metal battery . In addition to enhancing the ionic conductivity of electrolyte via Fe–O coordination interaction and Li-cyclopentadienyl ligands cation-π interaction, Fc can also regulate uniform lithium ionic flux over Li metal and inhibit lithium dendrite growth. Moreover, Fc can accelerate the electron transfer and reaction kinetic of LiFePO 4 cathode because of its properties of electron-transfer mediator. As a result, the all-solid-state LiFePO 4 /PEO electrolyte/Li battery with the addition of Fc shows notable cycling stability. It delivers an initial capacity of 158.2 mAh g −1 at 0.5 C and maintains 146.1 mAh g −1 after 300 cycles with a high capacity retention of 92.5%. This work offers a convenient method for durable all-solid-state lithium-metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Zixuan Wang,Han Wang,Ziwei Wang,Danlian Huang,Hong Qin,Yangzhuo He,Ming Chen,Guangming Zeng,Piao Xu
In this study, the oxidative degradation of tetracycline (TC) by ferrocene-modified graphite phase carbon nitride (Fe/g-C 3 N 4 ) activated persulfate (PS) under light-assisted conditions is examined. The materials are characterized by a series of methods such as SEM, TEM , XRD , FTIR, XPS , etc. This article explores the influence of the amount of sulfate, the initial concentration of pollutants, the amount of catalyst, and the pH value on the reaction system. When the amount of PS added reaches 2.5 mM and the catalyst dosage is 1 g L −1 , the Fe/g-C 3 N 4 /PS/Vis exhibit the best performance for tetracycline removal. In 60 min, the removal of tetracycline reaches 93% under its natural pH. In the reaction system acidic neutral conditions are more conducive to degrade TC. The results show that the doping of ferrocene inhibits the recombination of electron-hole pairs in the g-C 3 N 4 , expands the light response range to speed up the removal rate of tetracycline. At the same time, iron cycle generated by ferrocene modification helps to activate persulfate to produce sulfate radicals with strong oxidizing properties. Sulfate radicals, hydroxyl radicals , superoxide radicals and holes are the main active species proved by ESR test and the quenching experiments. The synergy between photocatalysis and PS activation promotes the production of active species and the tetracycline removal. The results show that the Fe/g-C 3 N 4 composite material activated persulfate under visible light is an effective method to remove tetracycline from water.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS RESEARCH
·
2015
·Vol. 30
·期 21
·3201-3210
·
IF 1.647
Wenping Guo,Zhongli Lei
Herein, we present a method for introducing β-cyclodextrin (β-CD) and Ferrocene (Fc) into the main chain of poly(acrylic acid) (PAA) to fabricate a novel supramolecular polymer, which was investigated by Fourier transform infrared spectroscopy and 1H Nuclear Magnetic Resonance (1H NMR). This polymer can self-assemble into interesting nanoparticles in aqueous solution. The redox-responsive Fc–CD host–guest interactions endow these nanoparticles with unique self-degradable and self-healable features under redox potential control. This redox behavior of the supramolecular polymer would open up an approach for redox-controlled biological materials with great application potential.
研究领域:
材料科学
·
生物医学工程
·
化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2015
·
IF 5.056
Wenbin Shi,Linjun Zhang,Jie Deng,Dongsheng Wang,Shudong Sun,Weifeng Zhao,Changsheng Zhao
Redox-responsive materials have attracted much attention, and redox-responsive membrane is strongly desired since enormous numbers of redox reactions carry out in living systems. Herein, a novel polymeric membrane with redox-resposive hydraulic permeability is fabricated by introducing a reversible redox-responsive system based on the host–guest complex between ferrocene (Fc) and β-cyclodextrin (β-CD) into polyethersulfone (PES) membrane. As the result of reversible redox-responsive formation or deformation of the complex, the water flux for the membrane with 18.3 wt% redox-responsive materials was 270 mL/m 2 mmHg h in original state, while increased to 1022 mL/m 2 mmHg h in oxidation state and decreased to 538 mL/m 2 mmHg h in reduction state. In addition, the results of water contact angle, surface zeta potential and the gas flow/liquid displacement confirmed that the origin of the redox-responsive hydraulic permeability were the change of the pore size and porosity for the modified membranes. The redox-responsive membranes have great potential to be utilized in the fields of chemical detection, drug delivery, biological treatments and so on.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2020
·
IF 4.231
Zhenguo Gao,Jiaoqiang Zhang,Shijie Zhang,Di Lan,Zehao Zhao,Kaichang Kou
Given the remarkable performances of metal frame works (MOFs) and ferrocene containing polymers (FCPs) in electronic devices, the research on integration of structure and function for collaborative optimization of electromagnetic wave (EMW) absorption are still missing. Herein, surface grafting and main chain polymerization methods have been employed on the FCPs modifying zeolitic imidazolate framework-67 (ZIF-67) respectively. Polydopamine-coated ZIF-67 was precursor for grafting type products (ZIF-67@PDA-Fc), while poly (vinyl ferrocene) was for main-chain type products (ZIF-67@PVF). Furthermore, the calcined products, polyhedron capsules structured Co 3 O 4 @C@α-Fe 2 O 3 and Co 3 O 4 /α-Fe 2 O 3 @C microwave absorbers were obtained from ZIF-67@PDA-Fc and ZIF-67@PVF for higher performance EMW absorption. The crystal, morphological and chemical structure was detected via XRD , SEM, TEM, FTIR, Raman, XPS techniques. The EMW absorbability was calculated according to transmission line theory. In particular, the minimum reflection loss (RL min ) of Co 3 O 4 @C@α-Fe 2 O 3 reached −52.2 dB at the thickness of 3.7 mm with effective absorption band ( f E ) 4.4 GHz. It is worth emphasized that the broadest f E was 6.6 GHz obtained at 2.5 mm with RL min reaching −38.4 dB. Additionally, the EMW absorption mechanism was also studied based on the dielectric and magnetic properties . This investigation will push forward further research and practical application of metal organic compounds-based composites.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Yue Hu,Zhou Fang,Xinyi Wan,Xu Ma,Yuqi Wang,Mengyang Dong,Zhizhen Ye,Xinsheng Peng
Developing efficient water adsorbents for solar-driven atmospheric water harvesting (AWH) still remains a challenge due to the poor photothermal heating ability and slow sorption kinetics of most adsorbents. Postsynthetic ligand exchange (LE) provides an alternative strategy to prepare metal–organic framework (MOF) materials with varied structures and functions. In this work, multifunctional hollow MIL-101(Cr) with ferrocene dicarboxylic acid (Fc(COOH)2) ligand exchanged (HMF) nanospheres are prepared and utilized for efficient AWH. The resulted HMF nanospheres present great visible light absorption (>80%) and photothermal conversion ability (61.6%) due to the introduced Fc(COOH)2 ligand. The water adsorption and desorption rates of the HMF nanosorbent are 2.3 times and 4.5 times that of MIL-101(Cr). The fast water capture and solar-driven release kinetics of HMF nanosorbents indicate its great potential for actual water harvesting. The outdoor water collection experiment demonstrates that the areal water harvesting capacity of the HMF nanosorbent is 1720 g m–2 per cycle with packed thickness of 8 mm. HMF nanosorbents also demonstrate good antibacterial activity (91.4%), which is beneficial to the collection of healthy and safe water. This work provides a facile and practical method to design multifunctional MOFs from the molecular level by LE and to achieve solar-driven AWH and other fields.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Jingyu Zhang,Yan Wang,Mei Hong,Bin Peng,Chunyang Bao,Xiaoling Xu,Die Li,Jing Chen,Bingyu Wang,Qiang Zhang
As a classical advanced oxidation technology, the Fenton reaction is often criticized for having a narrow pH window, difficult recovery of catalysts, and generating iron-containing sludge. Furthermore, traditional Fenton reaction was also limited in treating high salinity wastewater. In this work, a ferrocene-containing resin is prepared and used as the heterogeneous catalyst for a Fenton-like reaction to treat different organic pollutants wastewaters in high salinity conditions under a wide pH range. Using ascorbic acid as a reducing agent, the Fenton-like reaction can degrade different organic pollutants such as methylene blue, bisphenol A, bisphenol S, tetracyclines, and 4-nitrophenol within 10 min in high salinity conditions (500 mmol/L) at a wide range of pH values from acidic to basic. In mechanism investigation, singlet oxygen and superoxide radicals were identified as the primary reactive oxygen species. It was straightforward to recover the resin from water, and the degradation ratio exceeded 99% in five consecutive experiments. Such a Fenton-like reaction could also efficiently regenerate the resins to restore their adsorption capacity without using acid, base, or organic solvents.
研究领域:
环境科学
·
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Qin Dong,Tao Wang,Die Su,Ruiyi Gan,Minhua Shao,Cunpu Li,Qingfei Liu,Zidong Wei
The commercialization of Li–S batteries has been seriously hampered by the infamous “shuttle effect” of soluble lithium polysulfide intermediates (LiPSs, Li 2 S x , 4 ≤ x ≤ 8) and sluggish sulfur species conversion kinetics. In this work, vinyl ferrocene and styrene were copolymerized onto a polypropylene (PP) separator to prevent LiPS shuttling based on the electrostatic and orbital interactions between ferrocene and LiPSs, which increased the reactivity of LiPSs. Therefore, the “shuttle effect” can be successfully suppressed by a separator that combines thermodynamic anchoring and kinetic acceleration for LiPSs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2023
·
IF 6.4
Qi Peng,Hongwei Zhao,Qilin Yang,Guang Chen,Xinxiu Cao,Shaohui Xiong,Anguo Xiao,Gen Li,Bo Liu,Qingquan Liu
Herein, two types of Fc-based hypercrosslinked polymers (HHCP and DHCP) with high BET surface area (953.9 and 1062.7 m 2 g −1 ) were prepared by direct one-step phenolic polycondensation aiming at high uptake capacity towards H 2 . As expected, the hydrogen uptake values of HHCP and DHCP were notably higher than those of porous polymers with a higher surface area under the same conditions. The maximum H 2 uptake of HCPs at 77 K/1.0 bar are determined to be 2.51 wt % for HHCP and 2.74 wt % for DHCP, respectively. Despite the pore structure playing a determinant role in hydrogen adsorption, the adsorption sites in the polymer framework can be another essential factor to influence the hydrogen adsorption capacity. The interactions between the Fc building block and H 2 are revealed by DFT calculation to fully illustrate the role of Fc in H 2 adsorption. The results indicate that both iron atoms and benzene rings in Fc-based HCPs contribute to the adsorption of hydrogen. Moreover, it is interesting to find that the most stable adsorption site around the Fc building unit is the position directly above the Cp ring. The results in this work may more reasonably explain the phenomenon that the introduction of Fc units could enhance the adsorption of H 2 in many studies, which also provides possible insights into the application of metallocene compounds in H 2 adsorption.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2021
·Vol. 9
·期 17
·5749-5757
·
IF 7.393
Jiankui Zhou,Hanfang Feng,Yadong Wang,Qingqing Sun,Yingliang Liu,Xuying Liu,Li Zhang,Shaokui Cao
Random resistive access memory (RRAM) devices with a simple structure, low power consumption, and tunable switching behavior have emerged as promising candidates to simulate biological synapses. Here, we demonstrate solution-processable RRAM devices with FeC–rGO nanocomposites by intercalating nano-aggregating ferrocenes (FeCs) between the reduced graphene oxide (rGO) sheets, in which FeCs anchor on the surface of rGO through π–π stacking interactions. The Al/FeC–rGO/ITO devices fabricated by spin-coating exhibit a low SET/RESET voltage of −1.7 V/+2.1 V and a high ON/OFF ratio of 108, which results from the formation/rupture of conductive paths between rGO sheets gated by the redox of FeCs. Besides, the devices show high repeatability, excellent durability and favorable flexibility. In addition, the obtained device can be utilized to simulate the potentiation and depression of synapses by applying a pulse voltage below VSET, further contributing to image pattern recognition. Thus, this approach aims to fabricate information storage devices for future use in artificial intelligence.
研究领域:
材料科学
·
神经形态计算
·
电子工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）