Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte Solution
A single silver (Ag) nanoparticle (NP) collision was observed and analyzed in an alkaline solution using the electrocatalytic amplification (EA) method. Previously, the observation of a single Ag NP collision was only possible through limited methods based on a self-oxidation of Ag NPs or a blocking...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-07-01
|
| Series: | International Journal of Molecular Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1422-0067/23/13/7472 |
| _version_ | 1797479545114198016 |
|---|---|
| author | Ki Jun Kim Seong Jung Kwon |
| author_facet | Ki Jun Kim Seong Jung Kwon |
| author_sort | Ki Jun Kim |
| collection | DOAJ |
| description | A single silver (Ag) nanoparticle (NP) collision was observed and analyzed in an alkaline solution using the electrocatalytic amplification (EA) method. Previously, the observation of a single Ag NP collision was only possible through limited methods based on a self-oxidation of Ag NPs or a blocking strategy. However, it is difficult to characterize the electrocatalytic activity of Ag NPs at a single NP level using a method based on the self-oxidation of Ag NPs. When using a blocking strategy, size analysis is difficult owing to the edge effect in the current signal. The fast oxidative dissolution of Ag NPs has been a problem for observing the staircase response of a single Ag NP collision signal using the EA method. In alkaline electrolyte conditions, Ag oxides are stable, and the oxidative dissolution of Ag NPs is sluggish. Therefore, in this study, the enhanced magnitude and frequency of the current response for single Ag NP collisions were obtained using the EA method in an alkaline electrolyte solution. The peak height and frequency of single Ag NP collisions were analyzed and compared with the theoretical estimation. |
| first_indexed | 2024-03-09T21:46:52Z |
| format | Article |
| id | doaj.art-d609ae7782004da697d7a58eddbbf3b1 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T21:46:52Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-d609ae7782004da697d7a58eddbbf3b12023-11-23T20:14:26ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-07-012313747210.3390/ijms23137472Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte SolutionKi Jun Kim0Seong Jung Kwon1Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, KoreaDepartment of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, KoreaA single silver (Ag) nanoparticle (NP) collision was observed and analyzed in an alkaline solution using the electrocatalytic amplification (EA) method. Previously, the observation of a single Ag NP collision was only possible through limited methods based on a self-oxidation of Ag NPs or a blocking strategy. However, it is difficult to characterize the electrocatalytic activity of Ag NPs at a single NP level using a method based on the self-oxidation of Ag NPs. When using a blocking strategy, size analysis is difficult owing to the edge effect in the current signal. The fast oxidative dissolution of Ag NPs has been a problem for observing the staircase response of a single Ag NP collision signal using the EA method. In alkaline electrolyte conditions, Ag oxides are stable, and the oxidative dissolution of Ag NPs is sluggish. Therefore, in this study, the enhanced magnitude and frequency of the current response for single Ag NP collisions were obtained using the EA method in an alkaline electrolyte solution. The peak height and frequency of single Ag NP collisions were analyzed and compared with the theoretical estimation.https://www.mdpi.com/1422-0067/23/13/7472silver (Ag)single nanoparticleelectrocatalytic amplificationelectrochemistrysingle-molecule studiesalkaline solution |
| spellingShingle | Ki Jun Kim Seong Jung Kwon Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte Solution International Journal of Molecular Sciences silver (Ag) single nanoparticle electrocatalytic amplification electrochemistry single-molecule studies alkaline solution |
| title | Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte Solution |
| title_full | Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte Solution |
| title_fullStr | Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte Solution |
| title_full_unstemmed | Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte Solution |
| title_short | Electrochemical Detection and Analysis of Various Current Responses of a Single Ag Nanoparticle Collision in an Alkaline Electrolyte Solution |
| title_sort | electrochemical detection and analysis of various current responses of a single ag nanoparticle collision in an alkaline electrolyte solution |
| topic | silver (Ag) single nanoparticle electrocatalytic amplification electrochemistry single-molecule studies alkaline solution |
| url | https://www.mdpi.com/1422-0067/23/13/7472 |
| work_keys_str_mv | AT kijunkim electrochemicaldetectionandanalysisofvariouscurrentresponsesofasingleagnanoparticlecollisioninanalkalineelectrolytesolution AT seongjungkwon electrochemicaldetectionandanalysisofvariouscurrentresponsesofasingleagnanoparticlecollisioninanalkalineelectrolytesolution |