A liquid crystalline phase in spermidine-condensed DNA

Observation of a rectangular DNA superlattice in the liquid-crystalline phase of cationic lipid/DNA complexes.

Phase of Cationic Lipid/DNA Complexes Giulio Caracciolo,† Daniela Pozzi,† Ruggero Caminiti,*,† Giovanna Mancini,‡ Paola Luciani,‡ and Heinz Amenitsch§ Department of Chemistry, UniVersity of Rome “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, IMC-CNR c/o Department of Chemistry, UniVersity of Rome “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, and Institute of Biophysics and Nanosystems Re...

Liquid Crystalline Gelation of DNA

Liquid Crystalline Phases of DNA

The DNA molecule is the support of the genetic information. It is a right-handed double helix, 22 angstrom in diameter, and 50 nm in the persistence length. The two strands of the helix are complementary in their nucleotide sequence with about 10 nucleotide pairs per helical turn. DNA is a long and strongly charged heteropolymer. It bears on average one elementary negative charge per each 0.17 ...

Photoinduced phase transitions in liquid crystalline systems

In recent years, a field of research that is growing steadily is the photoinduced phenomenon in which the incident light itself brings about molecular ordering/ disordering of the liquid crystalline system. This particular aspect of photonics, in which light can be controlled by light as a stimulus, is being proposed as the future technology for high-speed information processing and photochromi...

Phase Inversion in a Batch Liquid – Liquid Stirred System

"> Phase inversion phenomenon occurs in many industrial processes including liquidliquid dispersions. Some parameters such as energy input or the presence of mineral compounds in the system affect this phen...