A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Enhancing Nonenzymatic Glucose Detection Through Cobalt‐Substituted Hafnia
https://orcid.org/0000-0003-1747-4539
AbstractEngineered defect chemistry in ultrathin (≈5 nm) hafnia through substitutional cobalt (HCO) is investigated for selective glucose sensing. Thin films of HCO, grown using chemical solution deposition (CSD)—traditionally used to grow thick films—on silicon, show significant glucose sensing activity and undergo monoclinic to orthorhombic phase transformation. The presence of multivalent cobalt in hafnia, with oxygen vacancies in proximity, selectively oxidizes glucose with minimal interference from ascorbic acid, dopamine, and uric acid. Theoretical investigations reveal that these oxygen vacancies create a shallow donor level that significantly enhances electrocatalytic activity by promoting charge transfer to the conduction band. This results in considerable selectivity, repeatability, and reproducibility in sensing characteristics. These findings highlight the technological importance of using CSD for thin films, paving the way for ultrathin CSD‐processed HCOs as potential candidates for selective glucose sensing applications.
Enhancing Nonenzymatic Glucose Detection Through Cobalt‐Substituted Hafnia
https://orcid.org/0000-0003-1747-4539
AbstractEngineered defect chemistry in ultrathin (≈5 nm) hafnia through substitutional cobalt (HCO) is investigated for selective glucose sensing. Thin films of HCO, grown using chemical solution deposition (CSD)—traditionally used to grow thick films—on silicon, show significant glucose sensing activity and undergo monoclinic to orthorhombic phase transformation. The presence of multivalent cobalt in hafnia, with oxygen vacancies in proximity, selectively oxidizes glucose with minimal interference from ascorbic acid, dopamine, and uric acid. Theoretical investigations reveal that these oxygen vacancies create a shallow donor level that significantly enhances electrocatalytic activity by promoting charge transfer to the conduction band. This results in considerable selectivity, repeatability, and reproducibility in sensing characteristics. These findings highlight the technological importance of using CSD for thin films, paving the way for ultrathin CSD‐processed HCOs as potential candidates for selective glucose sensing applications.
Enhancing Nonenzymatic Glucose Detection Through Cobalt‐Substituted Hafnia
https://orcid.org/0000-0003-1747-4539
AbstractEngineered defect chemistry in ultrathin (≈5 nm) hafnia through substitutional cobalt (HCO) is investigated for selective glucose sensing. Thin films of HCO, grown using chemical solution deposition (CSD)—traditionally used to grow thick films—on silicon, show significant glucose sensing activity and undergo monoclinic to orthorhombic phase transformation. The presence of multivalent cobalt in hafnia, with oxygen vacancies in proximity, selectively oxidizes glucose with minimal interference from ascorbic acid, dopamine, and uric acid. Theoretical investigations reveal that these oxygen vacancies create a shallow donor level that significantly enhances electrocatalytic activity by promoting charge transfer to the conduction band. This results in considerable selectivity, repeatability, and reproducibility in sensing characteristics. These findings highlight the technological importance of using CSD for thin films, paving the way for ultrathin CSD‐processed HCOs as potential candidates for selective glucose sensing applications.
Enhancing Nonenzymatic Glucose Detection Through Cobalt‐Substituted Hafnia
Advanced Science
Oh, Jeonghyeon (author) / Wee, Avis Sin Hui (author) / Park, Eun‐Byeol (author) / Hwang, Jaejin (author) / Kim, Seon Je (author) / Jeong, Hu Young (author) / Khine, Myat Thet (author) / Pujar, Pavan (author) / Lee, Jaekwang (author) / Kim, Young‐Min (author)
2025-02-24
Article (Journal)
Electronic Resource
English
Solvothermal synthesis of cobalt tungstate microrings for enhanced nonenzymatic glucose sensor
| British Library Online Contents | 2018
Solvothermal synthesis of cobalt tungstate microrings for enhanced nonenzymatic glucose sensor
| British Library Online Contents | 2018
Hafnia and hafnia-toughened ceramics
| British Library Online Contents | 1992
Microwave Synthesized CuO Nanoleaves as Nonenzymatic Glucose Sensor
| British Library Online Contents | 2013
A review of recent advances in nonenzymatic glucose sensors
| British Library Online Contents | 2014