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Supramolecular Reassembly of Self‐Exfoliated Ionic Covalent Organic Nanosheets for Label‐Free Detection of Double‐Stranded DNA
Abstract
Ionic covalent organic nanosheets (iCONs), a member of the two‐dimensional (2D) nanomaterials family, offer a unique functional platform for a wide range of applications. Herein, we explore the potential of an ethidium bromide (EB)‐based covalent organic framework (EB‐TFP) that self‐exfoliates in water resulting in 2D ionic covalent organic nanosheets (EB‐TFP‐iCONs) for the selective detection of double‐stranded DNA (dsDNA). In an aqueous medium, the self‐exfoliated EB‐TFP‐iCONs reassemble in the presence of dsDNA resulting in hybrid EB‐TFP‐iCONs‐DNA crystalline nanosheets with enhanced fluorescence at 600 nm. Detailed steady‐state and time‐resolved emission studies revealed that the reassembly phenomenon was highly selective for dsDNA when compared to single‐stranded DNA (ssDNA), which allowed us to use the EB‐TFP‐iCONs as a 2D fluorescent platform for the label‐free detection of complementary DNA strands.
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Citations
Cited by
Opportunities of Covalent Organic Frameworks for Advanced Applications
Song, Y., Sun, Q., Aguila, B., & Ma, S. (2019) · Advanced Science · doi:10.1002/advs.201801410 · Cited by 586
Porous organic polymers as a platform for sensing applications
Wang, S., Li, H., Huang, H., Cao, X., Chen, X., & Cao, D. (2022) · Chemical Society Reviews · doi:10.1039/d2cs00059h · Cited by 363
Landscaping Covalent Organic Framework Nanomorphologies
Sasmal, H. S., Kumar Mahato, A., Majumder, P., & Banerjee, R. (2022) · Journal of the American Chemical Society · doi:10.1021/jacs.2c02301 · Cited by 299
Self-citationHao, M., Chen, Z., Yang, H., Waterhouse, G. I. N., Ma, S., & Wang, X. (2022) · Science Bulletin · doi:10.1016/j.scib.2022.02.012 · Cited by 161
Metadata
- Authors
- Mal, A., Mishra, R. K., Praveen, V. K., Khayum, M. A., Banerjee, R., & Ajayaghosh, A.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2018-06-07
- Volume
- 57
- Issue
- 28
- Pages
- 8443-8447
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2800232292
- Cited by
- 169
- References
- 0
- FWCI
- 6.78
- Type
- journal article
- Language
- en
- Open access
- closed
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- Mal, A., Mishra, R. K., Praveen, V. K., Khayum, M. A., Banerjee, R., & Ajayaghosh, A. (2018). Supramolecular Reassembly of Self‐Exfoliated Ionic Covalent Organic Nanosheets for Label‐Free Detection of Double‐Stranded DNA. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201801352
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