Synthesis and Characterization of a Photoluminescent Nanoparticle Based on Fullerene–Silica Hybridization

Abstract

Bright lights: Fullerene-silica hybrid nanoparticles have bright photoluminescence, high photostability, and low cytotoxicity, which are assets for bioimaging agents. The origin of the photoluminescence of the nanoparticle is the C-O-Si bond (see picture).

Near‐Ultraviolet Fluorescent “ON‐OFF‐ON” Switching Sensors Based on Nitrogen‐Enriched Dual‐Color Single‐Functional Polymer Carbon Nanosheets

“…[49] Figure 4A shows the fluorescencei ntensities of GLNPCNs at different pH values. It is seen that the FL of the GLNPCNs is stronga nd stable over aw ide range of pH values (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14);h owever,t he emission spectra are redshifted at pH values of 13 and 14 ( Figure S3,t he Supporting Information), whereas at pH valuesl ower than 3, the FL intensities decrease gradually.T he effect of pH can be understood in terms of the change in surface chargeo wing to the intramoleculara nd intermolecular protonation/deprotonation, which can be attributed to the presence of CN units and N-containing groups on the edge and surface. The FL intensity at 420 nm (excitation at 350 nm) of the GLNPCNs was also investigated with different solution pH values, as shown in Figure S4 (the Supporting Information).…”

The effects of a series of carbon dots on fibrillation and cytotoxicity of human islet amyloid polypeptide

“…As newly-emerging and attractive materials, the carbon based nanomaterials have been found to be potential in the pharmaceutical applications in recent years. These materials primarily include carbon dots, 30,31 nanodiamonds, 32 carbon nanotubes, 33 fullerene, 34 and grapheme. 35 To date, numerous studies have been devoted to evaluating both the biological toxicity of carbon nanomaterials and their use in developing therapy for amyloidosis, but the results are sometimes contradictory with each other possibly due to different chemical modifications and non-uniform structures, such as length, diameter and surface charge property.…”

Carbon nanodots, Ru nanodots and hybrid nanodots: preparation and catalytic properties

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Among these nanomaterials, carbon nanodots have emerged as a very promising and a new class of carbogenic nanomaterials due to their fascinating intrinsic properties. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] Among these nanomaterials, carbon nanodots have emerged as a very promising and a new class of carbogenic nanomaterials due to their fascinating intrinsic properties.…”