Amphiphiles with a dendritic structure are attractive materials as they combine the features of dendrimers with the self-assembling properties and interfacial behavior of water-air affinities. We have synthesized three generations of polyester dendrimers and studied their interfacial properties on the Langmuir films. The behavior obtained was, as a rule, the lowest generation dendrimers behaving like traditional amphiphiles and the larger molecules presenting complicated isotherms. The Langmuir films of these compounds have been characterized by their surface pressure versus molecular area (π/A) and Brewster angle microscopy (BAM) observations.
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http://dx.doi.org/10.5402/2012/906839 | DOI Listing |
Pharmaceutics
November 2024
Department of Pharmaceutical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-097 Warsaw, Poland.
J Am Soc Mass Spectrom
December 2024
Department of Chemistry, University of Akron, Akron, Ohio 44325, United States.
The growing use of branched polymers in various industrial and technological applications has prompted significant interest in understanding their properties, for which accurate structure determination is vital. This work is the first instance where the macromolecular structures of dendrimers, linear polymers, and hyperbranched polymers with analogous 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) backbone groups were synthesized and analyzed via tandem mass spectrometry (MS/MS). When comparing the fragmentation pathways of these polymers, some unique and interesting patterns emerge that provide insight into the primary structures and architectures of each of these materials.
View Article and Find Full Text PDFInt J Biol Macromol
November 2024
College of Light Industry Science and Engineering, Beijing Technology and Business University, Beijing 100048, China; China Key Laboratory of Polymer Foam Materials Processing and Application for light Industry, China. Electronic address:
Soft Matter
October 2024
Division of Coating Technology, Fiber and Polymer Technology, KTH, Teknikringen 48, Stockholm, SE-10044, Sweden.
ACS Macro Lett
September 2024
School of Material Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
Bacteria in tumor microenvironments promote carcinogenesis and trigger complications, suggesting the significance of intervening in bacterial growth in cancer treatment. Here, dendrimer-derived mimics (DMs) of host defense peptides (HDPs) were designed for antibacterial and anticancer therapy, which feature a dendronized polylysine core and polycaprolactone arms. DMs displayed not only remarkable activities against and human lung cancer cells, but also exceptional selectivity.
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