Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.



Construction of stereocomplex granular dams in luminescent biopolymer systems

Author affiliations

Abstract

The accelerated but controlled environmental degradation of luminescent stereocomplex (sc) biopolymers is particularly desirable in reliable biological applications. Nevertheless, it still remains a huge challenge to date. In this work, inspired by natural and artificial granular dams, we report for the first time the controllable in situ construction of dam structures of crystalline sc granules in enantiomeric polylactides (PLAs) with the assistance of fluorescent carbon quantum dots (CQDs) at high pressure. The embedding of guest CQD assemblies into the host matrices of PLAs endows the pressure processed PLA/CQD biosystems with intriguing color tunable fluorescence emission. Also, the CQD assembled nanoparticles effectively regulate the size, distribution, stacking and hierarchical architecture of the granular stereocomplexes in the granulated sc dams. Consequently, different structures of stereocomplex granular dams are constructed spontaneously in the matrices of the PLA/CQD materials by varying high pressure crystallization conditions. This allows for the flexible and efficient control of the rate of diffusion of water in the biosystems, and further leads to the fabrication of a multicolor emissive biocomposite with an increasable but controllable hydrolytic degradation rate. The present study may offer a new perspective for the structural design of novel stereocomplex biomedical materials with well-defined textures.

Graphical abstract: Construction of stereocomplex granular dams in luminescent biopolymer systems

Back to tab navigation

Supplementary files

Article information


Submitted
07 Aug 2020
Accepted
25 Sep 2020
First published
25 Sep 2020

CrystEngComm, 2020, Advance Article
Article type
Paper

Construction of stereocomplex granular dams in luminescent biopolymer systems

Z. Yin, C. Wang, Z. Peng, X. Huang, W. Li, D. Shao, C. Zhang and J. Lu, CrystEngComm, 2020, Advance Article , DOI: 10.1039/D0CE01156H

Social activity

Search articles by author

Spotlight

Advertisements