Thermodynamic Characterization of Mixed Monolayers of a Novel Oxazolidine Derivative and Phospholipids View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2018-12

AUTHORS

Felipe de Sá Rocha, Rafael Ramos da Silva, Gustavo Henrique Ribeiro Codeceira, Maria do Carmo Alves de Lima, Ivan da Rocha Pitta, Maria Danielly Lima de Oliveira, César Augusto Souza de Andrade

ABSTRACT

Oxazolidine derivatives (OxD) are five ring-membered compounds that contain at least one oxygen and nitrogen in their molecular structure. OxD are known due to several therapeutic activities such as anticancer and antibiotic properties. In this paper, we performed a thermodynamic analysis of the mixed films composed by dipalmitoylphosphatidylglycerol (DPPG), dipalmitoylphosphoethanolamine (DPPE), dipalmitoyl phosphatidylcholine (DPPC) or L-α phosphatidylcholine (PC) with a novel oxazolidine derivate (OxD). Relevant thermodynamic parameters such as excess areas (ΔAE), excess free energies (ΔG), and Gibbs free energy of mixing (AGmix) were derived from the surface pressure data. The topographical analysis was performed using atomic force microscopy. Based on the calculated values of the thermodynamic parameters, we observed that the miscibility of the mixed films was directly dependent on their composition. DPPG/OxD and DPPE/OxD systems present the best-mixed character at low pressures at OxD molar fraction equivalent to 0.25. More... »

PAGES

1-11

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00232-018-0049-4

DOI

http://dx.doi.org/10.1007/s00232-018-0049-4

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1107372107

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30283978


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