ZnS nanocrystals decorated single-walled carbon nanotube based chemiresistive label-free DNA sensor
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
ZnS nanocrystals decorated single-walled carbon nanotube based chemiresistive label-free DNA sensor
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| Creator |
-, Rajesh
Das, Basanta K. Srinives, Sira Mulchandani, Ashok |
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| Subject |
Physics
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| Description |
We fabricated ZnS nanocrystals decorated single-walled carbon nanotube (SWNT) based chemiresistive sensor for DNA. Since the charge transfer in the hybrid nanostructures is considered to be responsible for many of their unique properties, the role of ZnS nanocrystals toward its performance in DNA sensor was delineated. It was found that the free carboxyl groups surrounding the ZnS nanocrystals allowed large loading of single strand DNA (ssDNA) probe that provided an ease of hybridization with target complementary c-ssDNA resulting in large electron transfer to SWNT. Thus it provided a significant improvement in sensitivity toward c-ssDNA as compared to bare SWNT based DNA sensor.
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| Publisher |
American Institute of Physics
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| Date |
2011-01-03
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/580/1/353.pdf
-, Rajesh and Das, Basanta K. and Srinives, Sira and Mulchandani, Ashok (2011) ZnS nanocrystals decorated single-walled carbon nanotube based chemiresistive label-free DNA sensor. Appllied Physics Letters, 98 (1). 013701-1-013701-3. ISSN 0003-6951 |
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| Relation |
http://apl.aip.org/resource/1/applab/v98/i1/p013701_s1
http://npl.csircentral.net/580/ |
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