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Dual Probe Sensors Using Atomically Precise Noble Metal Clusters
[Image: see text] This article adds a new direction to the functional capability of protein-protected atomically precise gold clusters as sensors. Counting on the extensively researched intense luminescence of these clusters and considering the electron donating nature of select amino acids, we intr...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6044776/ https://www.ncbi.nlm.nih.gov/pubmed/30023558 http://dx.doi.org/10.1021/acsomega.7b01219 |
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author | Subramanian, Vidhya Jena, Sanjoy Ghosh, Debasmita Jash, Madhuri Baksi, Ananya Ray, Debdutta Pradeep, Thalappil |
author_facet | Subramanian, Vidhya Jena, Sanjoy Ghosh, Debasmita Jash, Madhuri Baksi, Ananya Ray, Debdutta Pradeep, Thalappil |
author_sort | Subramanian, Vidhya |
collection | PubMed |
description | [Image: see text] This article adds a new direction to the functional capability of protein-protected atomically precise gold clusters as sensors. Counting on the extensively researched intense luminescence of these clusters and considering the electron donating nature of select amino acids, we introduce a dual probe sensor capable of sensing changes in luminescence and conductivity, utilizing bovine serum albumin-protected atomically precise gold clusters hosted on nanofibers. To this end, we have also developed a hybrid nanofiber with a conducting core with a porous dielectric shell. We show that clusters in combination with nanofibers offer a highly selective and sensitive platform for the detection of trace quantities of trinitrotoluene, both in solution and in the vapor phase. In the solution phase, trinitrotoluene (TNT) can be detected down to 1 ppt at room temperature, whereas in vapor phase, 4.8 × 10(9) molecules of TNT can be sensed using a 1 mm fiber. Although the development in electrospinning techniques for fabricating nanofibers as sensors is quite substantial, a hybrid fiber with the dual properties of conductivity and luminescence has not been reported yet. |
format | Online Article Text |
id | pubmed-6044776 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-60447762018-07-16 Dual Probe Sensors Using Atomically Precise Noble Metal Clusters Subramanian, Vidhya Jena, Sanjoy Ghosh, Debasmita Jash, Madhuri Baksi, Ananya Ray, Debdutta Pradeep, Thalappil ACS Omega [Image: see text] This article adds a new direction to the functional capability of protein-protected atomically precise gold clusters as sensors. Counting on the extensively researched intense luminescence of these clusters and considering the electron donating nature of select amino acids, we introduce a dual probe sensor capable of sensing changes in luminescence and conductivity, utilizing bovine serum albumin-protected atomically precise gold clusters hosted on nanofibers. To this end, we have also developed a hybrid nanofiber with a conducting core with a porous dielectric shell. We show that clusters in combination with nanofibers offer a highly selective and sensitive platform for the detection of trace quantities of trinitrotoluene, both in solution and in the vapor phase. In the solution phase, trinitrotoluene (TNT) can be detected down to 1 ppt at room temperature, whereas in vapor phase, 4.8 × 10(9) molecules of TNT can be sensed using a 1 mm fiber. Although the development in electrospinning techniques for fabricating nanofibers as sensors is quite substantial, a hybrid fiber with the dual properties of conductivity and luminescence has not been reported yet. American Chemical Society 2017-11-03 /pmc/articles/PMC6044776/ /pubmed/30023558 http://dx.doi.org/10.1021/acsomega.7b01219 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Subramanian, Vidhya Jena, Sanjoy Ghosh, Debasmita Jash, Madhuri Baksi, Ananya Ray, Debdutta Pradeep, Thalappil Dual Probe Sensors Using Atomically Precise Noble Metal Clusters |
title | Dual Probe Sensors Using Atomically Precise Noble
Metal Clusters |
title_full | Dual Probe Sensors Using Atomically Precise Noble
Metal Clusters |
title_fullStr | Dual Probe Sensors Using Atomically Precise Noble
Metal Clusters |
title_full_unstemmed | Dual Probe Sensors Using Atomically Precise Noble
Metal Clusters |
title_short | Dual Probe Sensors Using Atomically Precise Noble
Metal Clusters |
title_sort | dual probe sensors using atomically precise noble
metal clusters |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6044776/ https://www.ncbi.nlm.nih.gov/pubmed/30023558 http://dx.doi.org/10.1021/acsomega.7b01219 |
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