Carbon “quantum” dots for optical bioimaging

Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source

“…The multicolor property of C-dots has made them promising "nano-lights" that can emit tuneable photoluminescence for various applications. Particularly, considerable research effort has been focused on their potential applications in biological field [12,[15][16][17].…”

Ultra-small fluorescent inorganic nanoparticles for bioimaging

“…149 The recent advances in the synthesis 25 and characterization of fluorescent carbon dots have been reviewed. 17,148,149 The first study of fluorescent carbon dots in bioimaging was reported by the Sun group in 2007. 150 The authors used poly-(propionylethylenimine-co-ethylenimine) (PPEI-EI, with EI 30 fraction ~20%) to modify the carbon dots, and then applied them to label human breast cancer MCF-7 cells.…”

“…Fluorescent QDs include semiconducting nanoparticles from Groups IV (Si and Ge dots), [17][18][19][20] II-VI (CdE and ZnE, E = S, Se, and Te), III-V (InP), and I-III-VI (CuInS 2 , CuInSe 2 ), [21][22][23] in which the II-VI QDs (especially CdSe and CdTe based QDs) have been 10 extensively investigated as prototypes of semiconductor QDs due to their strong quantum confinement effects and high fluorescence QYs. II-VI colloidal fluorescent QDs can be prepared in organic solvents or aqueous solutions.…”

Mesoporous carbon biomaterials

“…Carbon dots and graphene quantum dots (QDs) have been extensively explored for cell labeling [76][77][78][79][80][81][82]. Using rational structural/compositional design, MCBs can be endowed with fluorescent properties for bio-imaging.…”