@article {43415,
	title = {Chemically delaminated free-standing ultrathin covalent organic nanosheets},
	journal = {Angewandte Chemie-International Edition},
	volume = {55},
	year = {2016},
	month = {DEC},
	pages = {15604-15608},
	abstract = {Covalent organic nanosheets (CONs) are a new class of porous thin two-dimensional (2D) nanostructures that can be easily designed and functionalized and could be useful for separation applications. Poor dispersion, layer restacking, and difficult postsynthetic modifications are the major hurdles that need to be overcome to fabricate scalable CON thin films. Herein, we present a unique approach for the chemical exfoliation of an anthracene-based covalent organic framework (COF) to N-hexylmaleimide-functionalized CONs, to yield centimeter-sized free-standing thin films through layer-by-layer CON assembly at the air-water interface. The thinlayer fabrication technique presented here is simple, scalable, and does not require any surfactants or stabilizing agents.},
	doi = {10.1002/anie.201607812},
	author = {Khayum, M. Abdul and Kandambeth, Sharath and Mitra, Shouvik and Nair, Sanoop B. and Das, Anuja and Nagane, Samadhan S. and Mukherjee, Rabibrata and Banerjee, Rahul}
}
@article {44604,
	title = {Supramolecular reassembly of self-exfoliated ionic covalent organic nanosheets for label-free detection of double-stranded DNA},
	journal = {Angewandte Chemie-International Edition},
	volume = {57},
	year = {2018},
	month = {JUL },
	pages = {8443-8447},
	abstract = {<p>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.</p>},
	keywords = {Covalent organic framework, DNA, ionic assembly, ionic covalent organic nanosheets, label-free detection},
	issn = {1433-7851},
	doi = {10.1002/anie.201801352},
	author = {Mal, Arindam and Mishra, Rakesh K. and Praveen, Vakayil K. and Khayum, M. Abdul and Banerjee, Rahul and Ajayaghosh, Ayyappanpillai}
}
