Exploració per tema "X-ray crystallography"

Ara es mostren els items 1-6 de 6

    • Cristal·lografia de raigs X de les seqüències de DNA del tipus CCGCGG i de la seqüència CGCTCTAGAGCG 

      Porredon Guarch, Joan (Universitat Politècnica de Catalunya, 2007-05)
      Projecte/Treball Final de Carrera
      Accés obert
      El DNA té un rol fonamental en els éssers vius ja que són molècules claus en la transmissió, expressió i conservació de la informació genètica. Està constituït per una cadena de nucleòtids que consten de tres parts: una ...

    • Crystalline structure and thermotropic behavior of alkyltrimethylphosphonium amphiphiles 

      Gamarra Montes, Ana; Urpí Garriga, Lourdes; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2017-02-14)
      Article
      Accés obert
      Quaternary organophosphonium salts bearing long alkyl chains are cationic surfactants of interest owing to their physical and biological properties. In the present work, the crystal structure and thermotropic behavior of ...

    • Polymorphism in halogen-ethane derivatives: CCl3-CCl3 and ClF2C-CF2Cl 

      Negrier, Philippe; Tamarit Mur, José Luis; Barrio Casado, María del; Mondieig, Denise (2013-02-06)
      Article
      Accés restringit per política de l'editorial
      The polymorphism of hexachloroethane, Cl3C−CCl3, has been reinvestigated by means of X-ray and neutron scattering. The long time unknown structure of the intermediate phase II of Cl3C−CCl3 has been determined as monoclinic ...

    • Polymorphism in halogen-ethane derivatives: CCl3-CF2Cl and CF3-CF2Cl 

      Negrier, Philippe; Barrio Casado, María del; Tamarit Mur, José Luis; Pardo Soto, Luis Carlos; Mondieig, Denise (2012-01-03)
      Article
      Accés restringit per política de l'editorial
      Molecular crystals of halogen–ethane derivatives C2X6–nYn (X = Cl, Y = F) are known to display order–disorder phase transitions involving changes of the translational, orientational, and conformational order. The appearance ...

    • Two high-mobility group box domains act together to underwind and kink DNA. 

      Sánchez Giraldo, Raquel; Acosta Reyes, Francisco Javier; Malarkey, Christopher S.; Saperas Plana, Núria; Churchill, Mair E. A.; Campos López, Josefina de Lourdes (2015-07-02)
      Article
      Accés obert
      High-mobility group protein 1 (HMGB1) is an essential and ubiquitous DNA architectural factor that influences a myriad of cellular processes. HMGB1 contains two DNA-binding domains, box A and box B, which have little ...

    • Uniaxial negative thermal expansion in crystals of tienoxolol 

      Nicolaï, Beatrice; Rietveld, Ivo B.; Barrio Casado, María del; Mahé, Nathalie; Tamarit Mur, José Luis; Céolin, René; Guéchot, Christophe; Teulon, Jean-Marie (2012-06-17)
      Article
      Accés restringit per política de l'editorial
      The thermal expansion of tienoxolol has been investigated by X-ray powder diffraction up to its melting temperature. The data indicate that the expansion is anisotropic and even negative in one direction of the unit cell. ...