Large-scale synthesis of soluble graphitic hollow carbon nanorods with tunable photoluminescence for the selective fluorescent detection of DNA

Kumud Malika Tripathi, Amit Kumar Sonker, Anshu Bhati, Jagannath Bhuyan, Sabyasachi Sarkar (Corresponding Author), Sumit Kumar Sonkar (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

50 Citations (Scopus)

Abstract

Photoluminescent water-soluble hollow carbon nanorods were synthesized by the pyrolysis of castor oil seeds (Ricinus communis) without the use of a catalyst. Oxidation of the pyrolysed soot produced a water-soluble form of graphitic hollow carbon nanorods. These showed excitation-dependent multicoloured photoluminescent emission from the green to red region of the visible spectrum and extending to the near-infrared region. This photoluminescent behaviour was used to produce a fluorescent turn-off/turn-on sensor for the specific, sensitive and rapid determination of DNA with a detection limit of ∼1.14 nM.
Original languageEnglish
Pages (from-to)1571-1579
JournalNew Journal of Chemistry
Volume40
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

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