Preparation of panchromatic carbon dots by drug function preservation strategy and its intracellular application for cancer diagnosis and therapeutics

The effect of lignin molecular weight on the formation and properties of carbon quantum dots

“…L-CQDs have good water solubility and are present in hydrothermal liquid products based on above results and previous research. 35,42 In order to verify the formation mechanism of L-CQDs, the hydrothermal liquids of F1, F3, and F5 at different time intervals (2,4,6,8,10, and 12 h) were examined by GC-MS.…”

“…Due to the abundant active sites on their surface, their physicochemical and photoluminescence properties are easy to be adjusted; CQDs have been widely used in fields such as photovoltaic energy devices, 1,2 information encryption, anticounterfeiting, 3,4 and sensor detection, 5 and especially have great potential for application in the bio-imaging and medical fields. 6–8 Generally, the formation pathway of CQDs from small organic molecules, such as citric acid, o -phenylenediamine and m -phenylenediamine, mainly involves dehydration, polymerization, aromatization, and condensation. 9 These small organic molecules are structurally simple and can easily undergo the above reactions.…”

Carbonized Polymer Dots with Aggregation-Induced Effect for Type I Photodynamic Therapy

“…In the field of CPDs, citric acid (CA) and urea have been widely acknowledged as classical preparation systems , while urea derivatives as precursors are rarely reported. The urea derivatives currently used are semicarbazide, hydroxyurea, and benzoylurea, , which provide a great possibility for the biological functionalization of CPDs. However, the study of disubstituted urea as a precursor has not been reported.…”