Document Detail

Self-assembly modulation in ionic PAMAM derivatives.
MedLine Citation:
PMID:  24652332     Owner:  NLM     Status:  In-Data-Review    
The self-assembly behaviour both in the bulk and water of a series of amphiphilic dendrimers constituted by second generation PAMAM ionically functionalized with different amounts of myristic acid is shown here. The number of acids in the dendrimer determines the liquid-crystal properties and the structural parameters of their supramolecular organization. Most of them present mesomorphism, organizing in a smectic A mesophase, with a layer spacing decreasing when increasing the number of acids. All these dendrimers form well-defined nanoobjects in water. Micelles and broken lamellae have been found for compounds with low acid contents. In contrast, dendrimers with higher fatty acid contents self-assemble forming nanospheres with a lamellar nanostructure. All compounds are able to trap the hydrophobic molecule 9,10-diphenylanthracene independent of the acid contents. Interestingly, the trapped hydrophobic molecule dominates the self-assembly trend of the dendrimers with low acid contents and thus different nanoobjects are found after the encapsulation.
Silvia Hernández-Ainsa; Elisabetta Fedeli; Joaquín Barberá; Mercedes Marcos; Teresa Sierra; José Luis Serrano
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Soft matter     Volume:  10     ISSN:  1744-6848     ISO Abbreviation:  Soft Matter     Publication Date:  2013 Dec 
Date Detail:
Created Date:  2014-03-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101295070     Medline TA:  Soft Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  281-9     Citation Subset:  IM    
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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