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Depalo N, Comparelli R, Striccoli M, et al. Alpha-cyclodextrin functionalized CdS nanocrystals for fabrication of 2/3 D assemblies. J Phys Chem B. 2006;110(35):17388-99doi: 10.1021/jp062764s.
Depalo, N., Comparelli, R., Striccoli, M., Curri, M. L., Fini, P., Giotta, L., & Agostiano, A. (2006). Alpha-cyclodextrin functionalized CdS nanocrystals for fabrication of 2/3 D assemblies. The journal of physical chemistry. B, 110(35), 17388-99. https://doi.org/10.1021/jp062764s
Depalo, Nicoletta, et al. "Alpha-cyclodextrin functionalized CdS nanocrystals for fabrication of 2/3 D assemblies." The journal of physical chemistry. B vol. 110,35 (2006): 17388-99. doi: https://doi.org/10.1021/jp062764s
Depalo N, Comparelli R, Striccoli M, Curri ML, Fini P, Giotta L, Agostiano A. Alpha-cyclodextrin functionalized CdS nanocrystals for fabrication of 2/3 D assemblies. J Phys Chem B. 2006 Sep 07;110(35):17388-99. doi: 10.1021/jp062764s. PMID: 16942075.
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J Phys Chem B. 2006 Sep 07;110(35):17388-99. doi: 10.1021/jp062764s.

Alpha-cyclodextrin functionalized CdS nanocrystals for fabrication of 2/3 D assemblies.

The journal of physical chemistry. B

Nicoletta Depalo, Roberto Comparelli, Marinella Striccoli, M Lucia Curri, Paola Fini, Livia Giotta, Angela Agostiano

Affiliations

  1. Dipartimento di Chimica, Università di Bari, via Orabona 4, I-70126 Bari, Italy.

PMID: 16942075 DOI: 10.1021/jp062764s

Abstract

Different types of cyclodextrins (CDs) have been tested as mediators for the water phase transfer of organic-capped CdS nanocrystals (NCs), and alphaCD has been demonstrated to be the most effective system. The formation of a complex based on alphaCDs and colloidal NCs has been considered to be responsible for the phase transfer process and extensively investigated by optical, structural, and calorimetric measurements, as a function of the experimental parameters (pH and NC and CD concentration). A mechanism for the complexation phenomena has been suggested. The fabrication of 2/3 D supramolecular architectures has been proposed according to two different strategies. First, a layer-by-layer procedure has been used to obtain multilayered structures where polyelectrolyte layers have been intercalated with negatively charged alphaCD-CdS NC complexes by exploiting electrostatic interaction between polyelectrolyte and cyclodextrin OH groups. Second, a monolayer of CdS NCs has been deposited onto a self-assembled monolayer of sulfated CDs, thus combining the use of an electrostatic-force-based approach and host-guest chemistry. The important role played by host-guest interactions has then been revealed.

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