Artículo

La versión final de este artículo es de uso interno. El editor solo permite incluir en el repositorio el artículo en su versión post-print. Por favor, si usted la posee enviela a
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Using molecular dynamics experiments, we analyze the association of "Janus" 6-amino-6-deoxy-2O-carboxymethyl-β-cyclodextrins (JCD) in aqueous solutions. In JCD dimers, the free energy associated with the primary-rim-secondary-rim docking shows a stable minimum of ∼-45 kcal mol-1. Trimers in solution are also remarkably stable, exhibiting minimal distortions in their spatial and orientational distributions. The resulting geometrical docking shows the incipient characteristics of flexible nanotubes in solution, with eventual water interchange between the central channel and the bulk at the junctions between monomers. Structural and dynamical properties of the trapped water filling the nanotube are dictated to a large exent by the charge density at the rims. © 2009 American Chemical Society.

Registro:

Documento: Artículo
Título:Building up nanotubes: Docking of "Janus" cyclodextrins in solution
Autor:Rodriguez, J.; Semino, R.; Laria, D.
Filiación:Departamento de Física de la Materia Condensada, Comisión National de Energía Atómica, Av. Gral. Paz 1499, (1650) San Martín, Prov. de Buenos Aires, Argentina
Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica Analitica y Química e INQUIMAE, Pabellón II, Ciudad Universitaria, (1428) Capital Federal, Argentina
Palabras clave:Amines; Cyclodextrins; Docking; Molecular dynamics; Nanotubes; Oligomers; Aqueous solutions; Carboxymethyl; Central channels; Dynamical properties; Minimal distortions; Orientational distributions; Water fillings; Dynamics
Año:2009
Volumen:113
Número:5
Página de inicio:1241
Página de fin:1244
DOI: http://dx.doi.org/10.1021/jp8106815
Título revista:Journal of Physical Chemistry B
Título revista abreviado:J Phys Chem B
ISSN:15206106
CODEN:JPCBF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15206106_v113_n5_p1241_Rodriguez

Referencias:

  • For comprehensive information about cyclodextrins, see the special issue corresponding to Chem. Rev. 1998, 98; Hamelin, B., Jullien, L., Guillo, F., Lehn, J.-M., Jardy, A., De Robertis, L., Driguez, H., (1995) J. Phys. Chum, 99, p. 17877
  • Shiwinté, P., Holohan, A., Darcy, R., O'Keefe, F., (1999) J. Inclusion Phenom. Macrocyclic Chem, 35, p. 657
  • Sallas, F., Darcy, R., (2008) Eur. J. Org. Chem, 957
  • Parrot-Lopez, H., Ling, C.-C., Zhang, P., Baszkin, A., Albrecht, G., de Rango, C., Coleman, A.W., (1992) J. Am. Chem. Soc, 114, p. 5479
  • Bart, J.R., Darcy, R., Mazzaglia, A., Nolan, D., Gaffney, K., (2001) Chem. Commun, 827
  • Dehez, F., Tarek, M., Chipot, C., (2007) J. Phys. Chem. B, 111, p. 10633
  • Phillips, J.C., Braun, R., Wang, W., Gumbart, J., Takkhorshid, E., Villa, E., Chipot, C., Shulten, K., (2005) J. Comput. Chem, 26, p. 1781
  • Mackerell, J.A.D., Bashford, D., Bellott, M., Dunbrack, J.R.L., Evanseck, J.D., Field, M.J., Fischer, S., Karplus, M., (1998) J. Phys. Chem. B, 102, p. 3586
  • Jorgensen, W.L., Chandrasekhar, J., Madura, J.D., (1983) J. Chem. Phys, 79, p. 926
  • Darden, T.A., York, D.M., Pedersen, L.G., (1993) J. Chem. Phys, 98, p. 10089
  • Essmann, U., Perera, L., Berkowitz, M.L., Darden, T.A., Lee, H., Pedersen, L.G., (1995) J. Chem. Phys, 103, p. 8577
  • Available at: Hetero-compound Information Centre-Uppsala, http://xray.bmc.uu.se/hicup/ACX/index.html; Hwang, H., Schatz, G.C., Ratner, M.A., (2006) J. Phys. Chem. B, 110, p. 26448
  • Yu, Y., Chipot, C., Cai, W., Shao, X., (2006) J. Phys. Chem. B, 110, p. 6372
  • Yu, Y., Chipot, C., Sun, T., Shao, X., (2008) J. Phys. Chem. B, 112, p. 5268
  • Darve, E., Pohorille, A., (2001) J. Chem. Phys, 115, p. 9169
  • Hénin, J., Chipot, C., (2004) J. Chem. Phys, 121, p. 2904
  • Rodriguez-Gomez, D., Darve, E., Pohorille, A., (2004) J. Chem. Phys, 120, p. 3563
  • Bonnet, P., Jaime, C., Morin-Alloy, L., (2002) J. Org. Chem, 67, p. 8602
  • Berkowitz, M., Karim, O.A., Mccammon, A.J., Rossky, P.J., (1984) Chem. Phys. Lett, 105, p. 577
  • Ciccotti, G., Ferrario, M., Hynes, J.T., Kapral, R., (1990) J. Chem. Phys, 93, p. 7137
  • Raffaini, G., Ganazzoli, F., (2007) Chem. Phys, 333, p. 128
  • Rodriguez, J., Rico, D.H., Domenianni, L., Laria, D., (2008) J. Phys. Chem. B, 112, p. 7522
  • Pekka, M., Nilsson, L., (2001) J. Phys. Chem. A, 105, p. 9954

Citas:

---------- APA ----------
Rodriguez, J., Semino, R. & Laria, D. (2009) . Building up nanotubes: Docking of "Janus" cyclodextrins in solution. Journal of Physical Chemistry B, 113(5), 1241-1244.
http://dx.doi.org/10.1021/jp8106815
---------- CHICAGO ----------
Rodriguez, J., Semino, R., Laria, D. "Building up nanotubes: Docking of "Janus" cyclodextrins in solution" . Journal of Physical Chemistry B 113, no. 5 (2009) : 1241-1244.
http://dx.doi.org/10.1021/jp8106815
---------- MLA ----------
Rodriguez, J., Semino, R., Laria, D. "Building up nanotubes: Docking of "Janus" cyclodextrins in solution" . Journal of Physical Chemistry B, vol. 113, no. 5, 2009, pp. 1241-1244.
http://dx.doi.org/10.1021/jp8106815
---------- VANCOUVER ----------
Rodriguez, J., Semino, R., Laria, D. Building up nanotubes: Docking of "Janus" cyclodextrins in solution. J Phys Chem B. 2009;113(5):1241-1244.
http://dx.doi.org/10.1021/jp8106815