Synthesis and preliminary investigations into norbornane-based amphiphiles and their self-assembly
作者:Jennifer S. Squire、Alessandra Sutti、Grégory Durand、Xavier A. Conlan、Luke C. Henderson
DOI:10.1039/c3nj00145h
日期:——
A range of norbornane based amphiphiles, which possess a rigid ‘kink’ in the centre of amphiphiles, were accessed via a concise four step synthesis. The self-assembly properties of these novel compounds were then investigated and the critical aggregation concentration (CAC), hydrodynamic diameter (DH) by dynamic light scattering (DLS) and their morphology by cryogenic transmission electron microscopy (cryoTEM) and negatively stained transmission electron microscopy (TEM) were determined. These compounds while possessing similar CAC values (50–70 μM) exhibited a wide variety of particle size (60–140 nm) and morphologies, including vesicles, cigar-shaped aggregates and rod-like micelles. Considering the similarities in molecular structure we have proposed that the unique nature of the molecular ‘kink’ is affecting molecular assembly in which subtle changes in molecular structure have large ramifications on aggregate size and morphology.
作者:Victorio Saez Talens、Pablo Englebienne、Thuat T. Trinh、Willem E. M. Noteborn、Ilja K. Voets、Roxanne E. Kieltyka
DOI:10.1002/anie.201503905
日期:2015.9.1
of strong hydrogen bonding and aromaticgain of the monomer units. The aromatic contribution to the interaction energy was further supported computationally by nucleus‐independent chemical shift (NICS) and harmonic oscillator model of aromaticity (HOMA) indices, demonstrating greater aromatic character upon polymerization: at least 30 % in a pentamer. The aromatic gain–hydrogen bonding synergy results
Modifying the Catalytic Activity of Lipopeptide Assemblies with Nucleobases
作者:Sonia Vela‐Gallego、Bartosz Lewandowski、Jasper Möhler、Alonso Puente、David Gil‐Cantero、Helma Wennemers、Andrés de la Escosura
DOI:10.1002/chem.202303395
日期:2024.1.2
Biomolecular conjugates consisting of a catalytic tripeptide, a fatty acid and nucleobase moieties form defined fibrillar assemblies in aqueousmedia and catalyze the reaction of butanal with nitrostyrene. The interaction between complementary nucleobases enhanced the order in the supramolecular assemblies and influenced the catalytic properties of the peptide-nucleolipids, indicating that nucleobases