Chiral Nanostructured Composite Films via Solvent-Tuned Self-Assembly and Their Enantioselective Performances

Abstract

Chiral nanostructures exhibited distinctive functions and attractive applications in complex biological systems, which demonstrated the subject of many outstanding research studies. In this work, various hierarchical composite film nanostructures were designed via supramolecular self-assembly using chiral amphiphilic glutamate derivatives and achiral porphyrin derivatives and their macroscopic enantioselective recognition properties were investigated. We have found that intermolecular hydrogenbonding interactions between water (donor and acceptor) and N,Ndimethylformamide (DMF) as well as chloroform (CHCl 3 ) (acceptor only) and DMF could subtly alter the molecular packing and significantly affected the supramolecular self-assembled nanostructures and triggered circular dichroism (CD) signal reversal. Present research work exemplified a feasible method to fabricate chiral flower-like and brick-like nanostructure films in different mixed solvents and large-scale chiral transfer from the molecular level to complex structures, which also provided a facile approach to identify certain L-/D-amino acids by means of contact angle detection using present obtained self-assembled composted films.

Preparation of Palladium Nanoparticles Decorated Polyethyleneimine/Polycaprolactone Composite Fibers Constructed by Electrospinning with Highly Efficient and Recyclable Catalytic Performances

“…Since the concentration of excess NaBH 4 in the catalytic reaction was much higher than that of 4-NP or 2-NA, the concentration of NaBH 4 in the mixed solution system could be regarded as a constant. Therefore, the concentration of 4-NP or 2-NA was a physical quantity that changed with time t, and the catalytic reduction reaction was a pseudo-first-order reaction [50][51][52][53][54][55][56][57]. The rate of the catalytic reaction (containing adsorption process) was evaluated according to Lambert-Beer's law and pseudo-first-order reaction kinetics (Equation (1)), where A 0 , A t and C 0 , C t were the absorbance and concentration of the mixed solution at the initial and time t, respectively.…”

A facile preparation method for new two-component supramolecular hydrogels and their performances in adsorption, catalysis, and stimuli-response

“…Thus, present obtained composite hydrogels demonstrated a new clue for the design of self-assembled nanomaterials and organized composites. [54][55][56][57][58][59][60][61][62][63][64][65]…”

Highly Efficient Catalytic Performances of Nitro Compounds and Morin via Self-Assembled MXene-Pd Nanocomposites Synthesized through Self-Reduction Strategy

“…In summary, the results indicate that the MXene@PdNPs catalyst has high catalytic activity, stability and recyclability. The new composite materials of MXene@PdNPs provide broad application prospects for new catalyst research fields such as dye catalytic degradation and sewage treatment [47,48,49,50,51,52,53,54,55], and expand ideas for the research of similar self-assembled nanocomposites [56,57,58,59,60,61,62,63,64,65].…”