Carbohydrate–protein interactions at interfaces: comparison of the binding of Ricinus communis lectin to two series of synthetic glycolipids using surface plasmon resonance studies
Smectic Bimetallomesogens: Synthesis and Mesomorphic Properties in Oxygen-Bridged Dicopper and Divanadyl Complexes
摘要:
AbstractThe synthesis and mesomorphic properties of a homologous series of N‐(3‐hydroxypropyl)‐4‐alkoxylsalicylaldimine, N‐(3‐hydroxypropyl)‐4‐(4′‐alkoxybenzoxy)salicylaldimine, and their dicopper(II) and di‐oxovanadium(VI) complexes are reported. Copper complexes exhibited monotropic smectic A phases; however, vanadyl complexes showed no mesomorphism. A systematic comparison revealed that the meso‐genie behaviors of these bimetallic complexes are induced by the weak intermolecular force and determined mainly by the central metal. The effects on the structural variations near the metal central cores and side chain density are also discussed.
Two series of phenylbenzylether and benzanilide based rod-like imidazolium bromides and their nonionic precursors, the 1-phenyl-1H-imidazoles have been synthesized and the influence of the number and length of the alkyl chain(s) and the structure of the linking group in the aromatic core (–CH2O–, –COO–, –CONH–) on their mesophase self-assembly in ionic liquid crystalline phases were studied by POM, DSC and XRD. Upon decreasing the length of the N-terminal chain or by enlarging the number and length of the C-terminal chains, the sequence smectic (SmA)–hexagonal columnar (Colhex)–micellar cubic (CubI/Pm3n) was found for the ether based imidazolium salts; while only SmA and Colhex phases were observed for the related amides. The influence of the polarity of the central linkages, namely –CH2O– and –CONH–, on the mesophase structure and stability is discussed and compared with related –COO– connected ILC.
Rational Design of Supramolecular Dynamic Protein Assemblies by Using a Micelle-Assisted Activity-Based Protein-Labeling Technology
作者:Britto S. Sandanaraj、Mullapudi Mohan Reddy、Pavankumar Janardhan Bhandari、Sugam Kumar、Vinod K. Aswal
DOI:10.1002/chem.201802824
日期:2018.10.26
self‐assembly of proteins into higher‐order superstructures is ubiquitous in biological systems. Genetic methods comprising both computational and rational design strategies are emerging as powerful methods for the design of synthetic protein complexes with high accuracy and fidelity. Although useful, most of the reported protein complexes lack a dynamic behavior, which may limit their potential applications
Farbphotographisches Aufzeichnungsmaterial mit nicht diffundierenden Elektronendonor-Vorläuferverbindungen
申请人:Agfa-Gevaert AG
公开号:EP0034749A2
公开(公告)日:1981-09-02
5-oder6-gliedrigeα-Lactone von Phenolen,die in2-ode 4-Stellung zur lactonisierten phenolischen Hydroxylgruppe eine Hydroxyl- oder Aminogruppe und im Lactonring einen elektronenanziehenden Substituenten tragen, so daß der Lactonring bei pH-Werten zwischen 10 und 13 leicht aufgespalten wird unter Bildung einer ED-Verbindung (ElektronendonorVerbindung) mit einem Retoxpotential von weniger als 0,255 V gemessen bei pH 0 gegen eine Normal-Kalomelektrode, sind wertvolle ED-Vorläuferverbindungen für nicht diffundierende reduzierbare farbgebende Verbindungen.