One-step solvent-free synthesis of carbon dot-based layered composites exhibiting color-tunable photoluminescence

Abstract

A practical and green approach to the development of color-tunable luminescent composites through in situ solvent-free synthesis of carbon dots on layered inorganic compounds is reported.

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.…”

Carbon dots on LAPONITE® hybrid nanocomposites: solid-state emission and inter-aggregate energy transfer

“…They can establish strong interactions, such as hydrogen bonding, complexation, and electrostatic interactions, between the organic surface groups of CDs and the inorganic matrix, [16][17][18][19] keeping the nanoparticles dispersed in solid-state. 16 Examples of inorganic hosts include salts like BaSO 4 , 20 oxides such as ZnO, 21 mesoporous materials like zeolites 22 and layered materials such as saponite 23 and montmorillonite. 19 The latter example is particularly interesting because its structure is based on interlayer spacing with a nanometric scale, providing a confined space that acts as nanoplatforms for CDs synthesis and offers the steric hindrance required.…”

Interactions of cellulose cryogels and aerogels with water and oil: Structure-function relationships

“…Hydroxypropyl methylcellulose cryogels have been proven to be effective in protecting the loaded molecules (e.g., curcumin) from the harsh stomach pH, promoting their controlled release, and increasing their intestinal bioaccessibility (Chuesiang et al, 2022). Similar effects in the modulation of the digestion of the loaded bioactive molecules (e.g., polyunsaturated fatty acids, phytosterols) have been also demonstrated for protein and starch aerogels (Selmer et al, 2019;Ubeyitogullari & Ciftci, 2019;Uchida et al, 2022).…”