Preparation, characterization and cell labelling of strong pH-controlled bicolor fluorescence carbonized polymer dots

Abstract

Multicolor fluorescence N-doped CPDs from dextrin water solution in strong acidic and alkaline environments were synthesized and characterized, which revealed that pH value plays a vital role in the process of CPD growth.

Revealing the synergetic interaction between amino and carbonyl functional groups and their effect on the electronic and optical properties of carbon dots

“…[1][2][3] In particular, CDs have the advantages of high biocompatibility, low toxicity, water-solubility, intense photoluminescence, photostability and cost-effective synthesis. 4,5 CDs typically have a small size (o10 nm) consisting of carbon, oxygen, and nitrogen atoms and can be prepared by top-down and bottom-up methods. 6 The bottom-up synthesis of CDs proceeds through carbonization and polymerization of small molecules, which are then assembled into CDs by chemical reactions, and is a common and preferable method due to the facile and green processes.…”

Synthetic strategies, properties and sensing application of multicolor carbon dots: recent advances and future challenges

“…(A) Reproduced with permission. 106 Copyright 2022, Royal Society of Chemistry. (B) Reproduced with permission.…”

“…pH-Induced structure transformation is an effective strategy for achieving multicolor conversion and performance improvement of CDs. 105 Liu et al 106 reported CDs with two-color emission (blue and yellow) using a hydrothermal method to modulate the pH (strong acidic or alkaline) of dextrin water solution (Fig. 3A).…”