Amine functionalized carbon quantum dots from paper precursors for selective binding and fluorescent labelling applications
- Title
- Amine functionalized carbon quantum dots from paper precursors for selective binding and fluorescent labelling applications
- Creator
- Lisa John V.; Joy F.; Jose Kollannoor A.; Joseph K.; Nair Y.; Vinod T.P.
- Description
- We report a novel synthesis route for preparing carbon quantum dots (CQDs) of customized surface functionality from readily available precursors. The synthetic strategy is based on the chemical modification of paper precursors prior to preparing CQDs from them. The pre-synthesis modification of paper precursors with (3-Aminopropyl) triethoxy silane (APTES) enabled us to synthesize CQDs with amine functional groups on the surface. The silane coupling via condensation between the ethoxy group of APTES and the cellulose hydroxyl group on the paper resulted in the tethering of amine groups on the paper substrates, which are retained as surface-bound species during the synthesis of CQDs from the modified paper. Amine functionalization on the surface of CQDs helped us use them in applications such as DNA binding. We analyzed the interaction of CQDs with calf thymus DNA (CT-DNA), and the results imply their propensity as an efficient biological probe. The synthetic strategy presented here can also be extended to other functional groups. 2022 Elsevier Inc.
- Source
- Journal of Colloid and Interface Science, Vol-617, pp. 730-744.
- Date
- 2022-01-01
- Publisher
- Academic Press Inc.
- Subject
- amine-modified CQDs; Carbon quantum dots; DNA binding; DNA cleavage; Modified carbon quantum dots; Photoluminescence
- Coverage
- Lisa John V., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Karnataka, Bangalore, 560029, India; Joy F., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Karnataka, Bangalore, 560029, India; Jose Kollannoor A., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Karnataka, Bangalore, 560029, India; Joseph K., Indian Institute of Space Science and Technology, Kerala, Thiruvananthapuram, 695547, India; Nair Y., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Karnataka, Bangalore, 560029, India; Vinod T.P., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Karnataka, Bangalore, 560029, India
- Rights
- Restricted Access
- Relation
- ISSN: 219797; PubMed ID: 35316786; CODEN: JCISA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Lisa John V.; Joy F.; Jose Kollannoor A.; Joseph K.; Nair Y.; Vinod T.P., “Amine functionalized carbon quantum dots from paper precursors for selective binding and fluorescent labelling applications,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/15054.