Carbon dot/inorganic nanomaterial composites

Abstract

Carbon dots (CDs), a carbon-based 0-Dimensionalfluorescent material with simple preparation method, wide range of raw materials, and excellent physical and chemical properties have attracted the attention of many researchers in...

Red emissive carbon dots as a fluorescent sensor for fast specific monitoring and imaging of polarity in living cells

“…[34][35][36][37] Among attractive carbon nanomaterials, uorescent carbon dots (CDs) of sizes less than 10 nm are widely used as promising uorescent sensors in biological imaging and as photodynamic therapy tools in consideration of their unique optical, chemical, and biological performances mentioned above as carbon-based nanoparticles. [38][39][40][41][42] However, despite these attractive properties, most reported CDs generally emit blue or green uorescence with low uorescence quantum yield and stability, which not only suffer from strong auto-uorescence and background interference in biological systems, but also cause radiation damage to tissues and cells. 40,43 As a consequence, the design and development of red/near-infrared (NIR) emissive CDs are interesting and attractive, and have also drawn tremendous attention because of certain advantages, including low levels of light scattering/absorption, long-wavelength emission, deep tissue penetration and negligible auto-uorescence interference from the biological background.…”

ZnO@Carbon Dot Nanoparticles Stimulating the Antibacterial Activity of Polyvinylidene Fluoride–Hexafluoropropylene with a Higher Electroactive Phase for Multifunctional Devices

“…This shell of CDs can form hydrogen bonds with PVDF-HFP and provide a large number of inducing sites for β-phase formation in PVDF-HFP. Meanwhile, it has been reported in the literature that CDs themselves are also antimicrobial through reactive oxygen species generation and surface charges, exhibiting good stability and biocompatibility. , In this study, ZnO nanoparticles will first be decorated by sensitizing CDs through the surface carboxyl functional group of CDs to obtain ZnO@CDs nanoparticles. , Then, the prepared ZnO@CDs will be incorporated into the PVDF-HFP matrix in order to achieve better antibacterial activity and piezoelectric performance than pure ZnO. The incompatibility between polymers and inorganic nanoparticles can be well resolved by CDs as an intermediate bridge.…”

“…24,25 In this study, ZnO nanoparticles will first be decorated by sensitizing CDs through the surface carboxyl functional group of CDs to obtain ZnO@CDs nanoparticles. 26,27 Then, the prepared ZnO@CDs will be incorporated into the PVDF-HFP matrix in order to achieve better antibacterial activity and piezoelectric performance than pure ZnO. The incompatibility between polymers and inorganic nanoparticles can be well resolved by CDs as an intermediate bridge.…”

Acid-regulated boron–nitrogen codoped multicolor carbonized polymer dots and applications for pH sensing and trace water detection

“…11,12 Surface luminescence refers to the fact that the fluorescence characteristics of CPDs are related to their surface functional groups and defects. 13,14 The surfaces of CPDs contain abundant functional groups, such as hydroxyl, carboxyl, amino, and aldehyde groups. 15,16 These functional groups can introduce many levels of band gaps on the surfaces and cause adjustable fluorescence emission peaks.…”