In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor
A regular nanostructure has been widely confirmed to result ina marked improvement in material performance in biosensing applications. In the present study, a regular nanostructured Prussian blue (PB) film with two heterogeneous crystal layers was synthesized in-situ using a secondary growth method....
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Ltd
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/69826 |
| _version_ | 1848762144648069120 |
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| author | Liu, Yu Peng, J. Jiang, D. Chu, Z. Jin, W. |
| author_facet | Liu, Yu Peng, J. Jiang, D. Chu, Z. Jin, W. |
| author_sort | Liu, Yu |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A regular nanostructure has been widely confirmed to result ina marked improvement in material performance in biosensing applications. In the present study, a regular nanostructured Prussian blue (PB) film with two heterogeneous crystal layers was synthesized in-situ using a secondary growth method. A PB seed layer was first controlled to form uniform cube-like crystal nuclei through an ultrasonic reaction with a single reactant. Then, well-defined 100 nm PB nanocubes were further crystallized on this seed layer using a self-assembly approach. In order to accelerate the electron transfer rate during the enzyme reaction for glucose detection, the graphene was used as the main cross-linker to immobilize glucose oxidase on the PB film. The as-prepared biosensor exhibited high electrocatalysis and electron conductivity for the detection of trace glucose with a sensitivity of 141.5 µA mM-1 cm-2, as well as excellent anti-interference ability in the presence of ascorbic acid and uric acid under a low operation potential of -0.05 V. |
| first_indexed | 2025-11-14T10:42:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-69826 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:42:54Z |
| publishDate | 2017 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-698262018-11-14T07:31:58Z In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor Liu, Yu Peng, J. Jiang, D. Chu, Z. Jin, W. A regular nanostructure has been widely confirmed to result ina marked improvement in material performance in biosensing applications. In the present study, a regular nanostructured Prussian blue (PB) film with two heterogeneous crystal layers was synthesized in-situ using a secondary growth method. A PB seed layer was first controlled to form uniform cube-like crystal nuclei through an ultrasonic reaction with a single reactant. Then, well-defined 100 nm PB nanocubes were further crystallized on this seed layer using a self-assembly approach. In order to accelerate the electron transfer rate during the enzyme reaction for glucose detection, the graphene was used as the main cross-linker to immobilize glucose oxidase on the PB film. The as-prepared biosensor exhibited high electrocatalysis and electron conductivity for the detection of trace glucose with a sensitivity of 141.5 µA mM-1 cm-2, as well as excellent anti-interference ability in the presence of ascorbic acid and uric acid under a low operation potential of -0.05 V. 2017 Journal Article http://hdl.handle.net/20.500.11937/69826 10.1016/j.pnsc.2017.04.005 http://creativecommons.org/licenses/by-nc-nd/4.0/ Elsevier Ltd fulltext |
| spellingShingle | Liu, Yu Peng, J. Jiang, D. Chu, Z. Jin, W. In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor |
| title | In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor |
| title_full | In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor |
| title_fullStr | In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor |
| title_full_unstemmed | In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor |
| title_short | In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor |
| title_sort | in-situ secondary growth of nanocube-based prussian-blue film as an ultrasensitive biosensor |
| url | http://hdl.handle.net/20.500.11937/69826 |