For the first time, an ultrathin iron-porphyrin based polymer nanocapsule with multiple peroxidase-like catalytic centers was constructed by covalently assembling iron-porphyrin monomers; this nanocapsule with a single molecule thickness shell acted as a highly efficient artificial enzyme for mimicking peroxidase. On the basis of the peroxidase-like activity of Fe-TPyP based nanocapsules (Fe-TPyP NCs), a highly sensitive colorimetric sensor for glucose determination was fabricated, the limit of detection was found to be as low as 0.098 μM. This study provided a novel strategy for developing artificial enzymes based on covalently assembled nanostructures. Furthermore, the colorimetric sensor for glucose determination showed potential applications in biomedicine and biology.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c8nr07288d | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cross-Linked Surface Engineering to Improve Iron Porphyrin Catalytic Activity.
Small
April 2020
Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry School of Science, Tianjin University, Tianjin, 300072, P. R. China.
Quasi-two-dimensional (QTD) structural heterogeneous catalysts have attracted a broad interest in multidisciplinary research due to their unique structure, preeminent surface properties and outstanding catalytic performance. Herein, a HZIF@TCPP-Fe/Fe heterogeneous catalyst based on cross-linked surface engineering is constructed by supporting QTD TCPP-Fe/Fe ultra-thin metallized film (≈2 nm) on hollow skeleton of zeolite imidazolate frameworks. The designed QTD structure exhibits high efficiency for the catalytic oxidative dehydrogenation of aromatic hydrazides reactions which is the key technology in various industrial processes.
View Article and Find Full Text PDFIce/Salt-Assisted Synthesis of Ultrathin Two-Dimensional Micro/Mesoporous Iron and Nitrogen Co-Doped Carbon as an Efficient Electrocatalyst for Oxygen Reduction.
Chemistry
April 2019
State Key Laboratory of Chemical Resource Engineering, Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China.
An ice/salt-assisted strategy has been developed to achieve the green and efficient synthesis of ultrathin two-dimensional (2D) micro/mesoporous carbon nanosheets (CNS) with the dominant active moieties of Fe-N (Fe-N-CNS) as high-performance electrocatalysts for the oxygen reduction reaction (ORR). The strategy involves freeze-drying a mixture of iron porphyrin and KCl salt using ice as template followed by a confined pyrolysis with KCl as an independent sealed nanoreactor to facilitate the formation of 2D carbon nanosheets, N incorporation, and porosity creation. The well-defined assembly of ultrathin 2D carbon nanosheets ensures high utilization of D1 and D3 Fe-N active sites, and effectively promotes the mass transport of ORR reactants by virtue of the pronounced mesoporous structure.
View Article and Find Full Text PDFAn ultrathin iron-porphyrin based nanocapsule with high peroxidase-like activity for highly sensitive glucose detection.
Nanoscale
December 2018
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Road, Changchun 130012, China.
For the first time, an ultrathin iron-porphyrin based polymer nanocapsule with multiple peroxidase-like catalytic centers was constructed by covalently assembling iron-porphyrin monomers; this nanocapsule with a single molecule thickness shell acted as a highly efficient artificial enzyme for mimicking peroxidase. On the basis of the peroxidase-like activity of Fe-TPyP based nanocapsules (Fe-TPyP NCs), a highly sensitive colorimetric sensor for glucose determination was fabricated, the limit of detection was found to be as low as 0.098 μM.
View Article and Find Full Text PDFPolycationic Polymer-Regulated Assembling of 2D MOF Nanosheets for High-Performance Nanofiltration.
ACS Appl Mater Interfaces
August 2017
Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore.
Herein, a two-dimensional metal-organic framework (2D MOF) made of iron porphyrin complex (TCP(Fe)) interconnected with divalent metal ion (M = Zn, Co, and Cu) is used to construct a selective layer, which is explored as an ultrafast and energy-saving nanofiltration (NF) membrane for removing organic dyes from water. Among the layered 2D M-TCP(Fe) membranes, Zn-TCP(Fe) membranes display the highest water permeance, which is 3 times higher than graphene-based membranes with similar rejection. To further improve the separation performances, we utilize polycations to anchor the periphery carboxylic groups of nanosheets, regulating the assembly of 2D Zn-TCP(Fe) nanosheets to produce a new class of crack-free selective layer possessing ultrathin and highly ordered nanochannels for efficient NF.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!