Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles
Prussian blue is an iron-cyanide-based pigment steadily becoming a widely used electrochemical sensor in detecting hydrogen peroxide at low concentration levels. Prussian blue nanoparticles (PBNPs) have been extensively studied using traditional ensemble methods, which only provide averaged informat...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-09-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2021.718666/full |
| _version_ | 1819034039291478016 |
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| author | Adaly Garcia Kinsley Wang Fatima Bedier Miriam Benavides Zijian Wan Zijian Wan Shaopeng Wang Shaopeng Wang Yixian Wang |
| author_facet | Adaly Garcia Kinsley Wang Fatima Bedier Miriam Benavides Zijian Wan Zijian Wan Shaopeng Wang Shaopeng Wang Yixian Wang |
| author_sort | Adaly Garcia |
| collection | DOAJ |
| description | Prussian blue is an iron-cyanide-based pigment steadily becoming a widely used electrochemical sensor in detecting hydrogen peroxide at low concentration levels. Prussian blue nanoparticles (PBNPs) have been extensively studied using traditional ensemble methods, which only provide averaged information. Investigating PBNPs at a single entity level is paramount for correlating the electrochemical activities to particle structures and will shed light on the major factors governing the catalyst activity of these nanoparticles. Here we report on using plasmonic electrochemical microscopy (PEM) to study the electrochemistry of PBNPs at the individual nanoparticle level. First, two types of PBNPs were synthesized; type I synthesized with double precursors method and type II synthesized with polyvinylpyrrolidone (PVP) assisted single precursor method. Second, both PBNPs types were compared on their electrochemical reduction to form Prussian white, and the effect from the different particle structures was investigated. Type I PBNPs provided better PEM sensitivity and were used to study the catalytic reduction of hydrogen peroxide. Progressively decreasing plasmonic signals with respect to increasing hydrogen peroxide concentration were observed, demonstrating the capability of sensing hydrogen peroxide at a single nanoparticle level utilizing this optical imaging technique. |
| first_indexed | 2024-12-21T07:27:23Z |
| format | Article |
| id | doaj.art-71d7d76c44464e9a9d44056193a45c0a |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-21T07:27:23Z |
| publishDate | 2021-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-71d7d76c44464e9a9d44056193a45c0a2022-12-21T19:11:39ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462021-09-01910.3389/fchem.2021.718666718666Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue NanoparticlesAdaly Garcia0Kinsley Wang1Fatima Bedier2Miriam Benavides3Zijian Wan4Zijian Wan5Shaopeng Wang6Shaopeng Wang7Yixian Wang8Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United StatesDepartment of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United StatesDepartment of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United StatesDepartment of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United StatesBiodesign Center for Biosensors and Bioelectronics, Arizona State University, Tempe, AZ, United StatesSchool of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ, United StatesBiodesign Center for Biosensors and Bioelectronics, Arizona State University, Tempe, AZ, United StatesSchool of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, United StatesDepartment of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United StatesPrussian blue is an iron-cyanide-based pigment steadily becoming a widely used electrochemical sensor in detecting hydrogen peroxide at low concentration levels. Prussian blue nanoparticles (PBNPs) have been extensively studied using traditional ensemble methods, which only provide averaged information. Investigating PBNPs at a single entity level is paramount for correlating the electrochemical activities to particle structures and will shed light on the major factors governing the catalyst activity of these nanoparticles. Here we report on using plasmonic electrochemical microscopy (PEM) to study the electrochemistry of PBNPs at the individual nanoparticle level. First, two types of PBNPs were synthesized; type I synthesized with double precursors method and type II synthesized with polyvinylpyrrolidone (PVP) assisted single precursor method. Second, both PBNPs types were compared on their electrochemical reduction to form Prussian white, and the effect from the different particle structures was investigated. Type I PBNPs provided better PEM sensitivity and were used to study the catalytic reduction of hydrogen peroxide. Progressively decreasing plasmonic signals with respect to increasing hydrogen peroxide concentration were observed, demonstrating the capability of sensing hydrogen peroxide at a single nanoparticle level utilizing this optical imaging technique.https://www.frontiersin.org/articles/10.3389/fchem.2021.718666/fullprussian blue nanoparticleshydrogen peroxidesingle entity electrochemistryplasmonic electrochemical microscopysurface plasmon resonance |
| spellingShingle | Adaly Garcia Kinsley Wang Fatima Bedier Miriam Benavides Zijian Wan Zijian Wan Shaopeng Wang Shaopeng Wang Yixian Wang Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles Frontiers in Chemistry prussian blue nanoparticles hydrogen peroxide single entity electrochemistry plasmonic electrochemical microscopy surface plasmon resonance |
| title | Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles |
| title_full | Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles |
| title_fullStr | Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles |
| title_full_unstemmed | Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles |
| title_short | Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles |
| title_sort | plasmonic imaging of electrochemical reactions at individual prussian blue nanoparticles |
| topic | prussian blue nanoparticles hydrogen peroxide single entity electrochemistry plasmonic electrochemical microscopy surface plasmon resonance |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2021.718666/full |
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