Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Single‐Atomic Site Catalyst with Heme Enzymes‐Like Active Sites for Electrochemical Sensing of Hydrogen Peroxide

Journal Article · · Small
 [1];  [1];  [2];  [3];  [1];  [4];  [1];  [1];  [1];  [1]
  1. School of Mechanical and Materials Engineering Washington State University Pullman WA 99164 USA
  2. Department of Chemistry and Biochemistry Northern Illinois University DeKalb IL 60115 USA
  3. Department of Chemistry and Biochemistry Northern Illinois University DeKalb IL 60115 USA, X‐ray Science Division Argonne National Laboratory Lemont IL 60439 USA
  4. DL ADV‐Tech Pullman WA 99163 USA
Abstract

Heme enzymes, with the pentacoordinate heme iron active sites, possess high catalytic activity and selectivity in biosensing applications. However, they are still subject to limited catalytic stability in the complex environment and high cost for broad applications in electrochemical sensing. It is meaningful to develop a novel substitute that has a similar structure to some heme enzymes and mimics their enzyme activities. One emerging strategy is to design the Fe‐N‐C based single‐atomic site catalysts (SASCs). The obtained atomically dispersed Fe‐N x active sites can mimic the active sites of heme enzymes effectively. In this work, a SASC (Fe‐SASC/NW) is synthesized by doping single iron atoms in polypyrrole (PPy) derived carbon nanowire via a zinc‐atom‐assisted method. The proposed Fe‐SASC/NW shows high heme enzyme‐like catalytic performance for hydrogen peroxide (H 2 O 2 ) with a specific activity of 42.8 U mg −1 . An electrochemical sensor based on Fe‐SASC/NW is developed for the detection of H 2 O 2 . This sensor exhibits a wide detection concentration range from 5.0  × 10 −10 m to 0.5 m and an excellent limit of detection (LOD) of 46.35  × 10 −9 m . Such excellent catalytic activity and electrochemical sensing sensitivity are attributed to the isolated Fe‐N x active sites and their structural similarity with natural metalloproteases.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1784442
Journal Information:
Small, Journal Name: Small Journal Issue: 25 Vol. 17; ISSN 1613-6810
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (49)

An Organelle‐Specific Nanozyme for Diabetes Care in Genetically or Diet‐Induced Models journal October 2020
Sub-50 nm Iron-Nitrogen-Doped Hollow Carbon Sphere-Encapsulated Iron Carbide Nanoparticles as Efficient Oxygen Reduction Catalysts journal May 2018
Magnetite Fe 3 O 4 Has no Intrinsic Peroxidase Activity, and Is Probably not Involved in Alzheimer's Oxidative Stress journal October 2018
A Single‐Atom Nanozyme for Wound Disinfection Applications journal March 2019
When Nanozymes Meet Single‐Atom Catalysis journal October 2019
Single-Atom Electrocatalysts journal October 2017
Defect‐Rich Graphene Nanomesh Produced by Thermal Exfoliation of Metal–Organic Frameworks for the Oxygen Reduction Reaction journal September 2019
Boosting Bifunctional Oxygen Electrolysis for N-Doped Carbon via Bimetal Addition journal February 2017
Single‐Atom Nanozyme Based on Nanoengineered Fe–N–C Catalyst with Superior Peroxidase‐Like Activity for Ultrasensitive Bioassays journal May 2019
An Ion‐Imprinting Derived Strategy to Synthesize Single‐Atom Iron Electrocatalysts for Oxygen Reduction journal December 2020
Single‐Atom Materials: Small Structures Determine Macroproperties journal October 2020
Highly Selective Two‐Electron Electrocatalytic CO 2 Reduction on Single‐Atom Cu Catalysts journal October 2020
Insights into KMnO4 etched N-rich carbon nanotubes as advanced electrocatalysts for Zn-air batteries journal May 2020
Recent advances on developing 3rd generation enzyme electrode for biosensor applications journal May 2016
Unprecedented peroxidase-mimicking activity of single-atom nanozyme with atomically dispersed Fe–Nx moieties hosted by MOF derived porous carbon journal October 2019
A bifunctionalized NiCo2O4-Au composite: Intrinsic peroxidase and oxidase catalytic activities for killing bacteria and disinfecting wound journal January 2021
Boron-doped Fe-N-C single-atom nanozymes specifically boost peroxidase-like activity journal December 2020
Amperometric Biosensor for Glutamate Using Prussian Blue-Based “Artificial Peroxidase” as a Transducer for Hydrogen Peroxide journal April 2000
Platinum Nanozyme-Enabled Colorimetric Determination of Total Antioxidant Level in Saliva journal June 2020
Cu 2+ -Modified Boron Nitride Nanosheets-Supported Subnanometer Gold Nanoparticles: An Oxidase-Mimicking Nanoenzyme with Unexpected Oxidation Properties journal November 2019
Nanozymes: Classification, Catalytic Mechanisms, Activity Regulation, and Applications journal January 2019
Chemical Synthesis of Single Atomic Site Catalysts journal April 2020
Atomically Isolated Iron Atom Anchored on Carbon Nanotubes for Oxygen Reduction Reaction journal September 2019
Densely Isolated FeN 4 Sites for Peroxidase Mimicking journal May 2020
Nano-Apples and Orange-Zymes journal December 2020
Nitrogen and Phosphorus Dual-Doped Graphene/Carbon Nanosheets as Bifunctional Electrocatalysts for Oxygen Reduction and Evolution journal June 2015
Secondary-Atom-Assisted Synthesis of Single Iron Atoms Anchored on N-Doped Carbon Nanowires for Oxygen Reduction Reaction journal May 2019
Can Nanozymes Have an Impact on Sensing? journal September 2019
Noble-Metal-Free Fe–N/C Catalyst for Highly Efficient Oxygen Reduction Reaction under Both Alkaline and Acidic Conditions journal July 2014
Phenylenediamine-Based FeN x /C Catalyst with High Activity for Oxygen Reduction in Acid Medium and Its Active-Site Probing journal July 2014
Discriminating Catalytically Active FeN x Species of Atomically Dispersed Fe–N–C Catalyst for Selective Oxidation of the C–H Bond journal July 2017
Optically Switchable Photocatalysis in Ultrathin Black Phosphorus Nanosheets journal February 2018
On the Origin of Electrocatalytic Oxygen Reduction Reaction on Electrospun Nitrogen–Carbon Species journal May 2013
A New Fuel Cell Cathode Catalyst journal March 1964
Enhanced luminescence procedure for sensitive determination of peroxidase-labelled conjugates in immunoassay journal September 1983
Single-atom catalysis of CO oxidation using Pt1/FeOx journal July 2011
Standardized assays for determining the catalytic activity and kinetics of peroxidase-like nanozymes journal July 2018
Edge-rich and dopant-free graphene as a highly efficient metal-free electrocatalyst for the oxygen reduction reaction journal January 2016
The chemical identity, state and structure of catalytically active centers during the electrochemical CO 2 reduction on porous Fe–nitrogen–carbon (Fe–N–C) materials journal January 2018
Unraveling the enzyme-like activity of heterogeneous single atom catalyst journal January 2019
Metal–organic framework based nanozymes: promising materials for biochemical analysis journal January 2020
Single-atom catalysts boost signal amplification for biosensing journal January 2021
Atomic engineering of single-atom nanozymes for enzyme-like catalysis journal January 2020
Impact of transition metal on nitrogen retention and activity of iron–nitrogen–carbon oxygen reduction catalysts journal January 2014
Nanomaterials with enzyme-like characteristics (nanozymes): next-generation artificial enzymes journal January 2013
Single-atom nanozymes journal May 2019
Active Nonmetallic Au and Pt Species on Ceria-Based Water-Gas Shift Catalysts journal August 2003
Iron-Based Catalysts with Improved Oxygen Reduction Activity in Polymer Electrolyte Fuel Cells journal April 2009
Single-Atom Nanozymes Linked Immunosorbent Assay for Sensitive Detection of A β 1-40: A Biomarker of Alzheimer’s Disease journal October 2020

Similar Records

Single-Atomic Site Catalyst Enhanced Lateral Flow Immunoassay for Point-of-Care Detection of Herbicide
Journal Article · Mon Aug 22 20:00:00 EDT 2022 · Research · OSTI ID:1882999

Related Subjects