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  Multivalency at interfaces : supramolecular carbohydrate-functionalized graphene derivatives for bacterial capture, release, and disinfection

Qi, Z., Bharate, P., Lai, C.-H., Ziem, B., Böttcher, C., Schulz, A., et al. (2015). Multivalency at interfaces: supramolecular carbohydrate-functionalized graphene derivatives for bacterial capture, release, and disinfection. Nano Letters, 15(9), 6051-6057. doi:10.1021/acs.nanolett.5b02256.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-2C8D-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-6141-3
Genre: Journal Article

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 Creators:
Qi, Zhenhui, Author
Bharate, Priya1, Author              
Lai, Chian-Hui2, Author              
Ziem, Benjamin, Author
Böttcher, Christoph, Author
Schulz, Andrea, Author
Beckert, Fabian, Author
Hatting, Benjamin, Author
Mülhaupt, Rolf, Author
Seeberger, Peter H.2, Author              
Haag, Rainer, Author
Affiliations:
1Peter H. Seeberger - Nanoparticles and Colloidal Polymers, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863307              
2Peter H. Seeberger - Automated Systems, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863306              

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 Abstract: A supramolecular carbohydrate-functionalized two-dimensional (2D) surface was designed and synthesized by decorating thermally reduced graphene sheets with multivalent sugar ligands. The formation of host?guest inclusions on the carbon surface provides a versatile strategy, not only to increase the intrinsic water solubility of graphene-based materials, but more importantly to let the desired biofunctional binding groups bind to the surface. Combining the vital recognition role of carbohydrates and the unique 2D large flexible surface area of the graphene sheets, the addition of multivalent sugar ligands makes the resulting carbon material an excellent platform for selectively wrapping and agglutinating Escherichia coli (E. coli). By taking advantage of the responsive property of supramolecular interactions, the captured bacteria can then be partially released by adding a competitive guest. Compared to previously reported scaffolds, the unique thermal IR-absorption properties of graphene derivatives provide a facile method to kill the captured bacteria by IR-laser irradiation of the captured graphene-sugar-E. coli complex.

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 Dates: 2015-08-032015
 Publication Status: Published in print
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 Identifiers: DOI: 10.1021/acs.nanolett.5b02256
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Title: Nano Letters
  Abbreviation : Nano Lett.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 15 (9) Sequence Number: - Start / End Page: 6051 - 6057 Identifier: ISSN: 1530-6984