Carbon‐Dot‐Decorated Nanodiamonds

Shenderova, Olga; Hens, Suzanne; Власов, И. И.; Turner, Stuart; Lu, Ying-Gang; Tendeloo, Gustaaf Van; Schrand, Amanda M.; Burikov, Sergey; Dolenko, Tatiana A.

doi:10.1002/ppsc.201300251

Cited by 41 publications

(29 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[20] The 80 nm FND had been treated with acid, however, and acid treatment of FND at temperatures exceeding 100 °C has been reported to generate carbon dots, which have broad near IR PL emission, on the surface of the nanodiamonds. [21] We suspect that the surfaces of the 80 nm FNDs were decorated with carbon dots resulting from high temperature acid treatment and that emission from these carbon dots was quenched by the PDA shell, resulting in the reduction of PL intensity proportional to PDA shell thickness.…”

Section: Resultsmentioning

confidence: 99%

Polydopamine Encapsulation of Fluorescent Nanodiamonds for Biomedical Applications

Jung¹,

Cho

Seol³

et al. 2018

Adv Funct Materials

View full text Add to dashboard Cite

Fluorescent nanodiamonds (FNDs) are promising bio-imaging probes compared with other fluorescent nanomaterials such as quantum dots, dye-doped nanoparticles, and metallic nanoclusters, due to their remarkable optical properties and excellent biocompatibility. Nevertheless, they are prone to aggregation in physiological salt solutions, and modifying their surface to conjugate biologically active agents remains challenging. Here, inspired by the adhesive protein of marine mussels, we demonstrate encapsulation of FNDs within a polydopamine (PDA) shell. These PDA surfaces are readily modified via Michael addition or Schiff base reactions with molecules presenting thiol or nitrogen derivatives. We describe modification of PDA shells by thiol terminated poly(ethylene glycol) (PEG-SH) molecules to enhance colloidal stability and biocompatibility of FNDs. We demonstrate their use as fluorescent probes for cell imaging; we find that PEGylated FNDs are taken up by HeLa cells and mouse bone marrow-derived dendritic cells and exhibit reduced nonspecific membrane adhesion. Furthermore, we demonstrate functionalization with biotin-PEG-SH and perform long-term high-resolution single-molecule fluorescence based tracking measurements of FNDs tethered via streptavidin to individual biotinylated DNA molecules. Our robust polydopamine encapsulation and functionalization strategy presents a facile route to develop FNDs as multifunctional labels, drug delivery vehicles, and targeting agents for biomedical applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Polydopamine Encapsulation of Fluorescent Nanodiamonds for Biomedical Applications

Jung¹,

Cho

Seol³

et al. 2018

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Usually, nanodiamonds of different origin are characterized by the presence of broadband luminescence in the range of 500–650 nm. It is associated with oxidized nano‐graphite (‐graphene) (ONG) clusters, which can be produced by acid treatment of sp2 carbon structures, usually accompanying a production of any nanodiamonds . It is assumed that the broad band is associated with an inhomogeneous broadening of the luminescence from individual luminophores having a diverse structure .…”

Section: Resultsmentioning

confidence: 99%

Structure and Luminescence Properties of Nanonodiamonds Produced from Adamantane

Kudryavtsev

Екимов

Romshin

et al. 2018

Physica Status Solidi (a)

View full text Add to dashboard Cite

Nano‐ and micro‐diamonds synthesized from organic compounds at high pressure are a new class of diamond materials, whose physical and chemical properties are not yet studied. In this paper, the structural and luminescence features of such diamonds on an example of a sample synthesized from adamantane at a pressure of 8–9 GPa and a temperature of 1700 K is investigated. In Raman spectra of the sample, lines corresponding to vibrational energies of CHx bonds are found, that reveals a termination of carbon bonds on a diamond surface by hydrogen atoms and explains hydrophobic properties of this material. It is shown, that the hydrophobic properties of nanodiamonds can be replaced by hydrophilic ones by heating them in air up to 700 °C. In photoluminescence spectra of the as‐grown sample, a number of narrow lines are detected in the range of 490–650 nm. Their intensity is insignificant in comparison with the Raman line of diamond and fluctuates in time independently for each of the lines. It is assumed that these lines are associated with a small amount of oxidized graphene clusters on a surface of the diamond nanoparticles.

show abstract

“…Hybrids combining CDs and NDs were even recently synthetized. Using a specific acid treatment, sp 2 carbon dots from 1 to a few nanometers can be generated at the surface of detonation NDs [167]. The detonation soot was oxidized using a sulfuric/nitric acid mixture.…”

Section: Carbon Dotsmentioning

confidence: 99%

Nanodiamonds: From Synthesis and Purification to Deposition Techniques, Hybrids Fabrication and Applications

Arnault

2016

Carbon Nanoparticles and Nanostructures

View full text Add to dashboard Cite

The present chapter summarizes the recent advances in the production and the purification methods of nanodiamonds. The different strategies for seeding and patterning of surfaces are detailed. First reports of hybrids based on nanodiamonds are included like core shell particles or decoration with carbon dots or metallic atoms. Finally, an overview of applications for composites and nanomedicine is provided.

show abstract

Carbon‐Dot‐Decorated Nanodiamonds

Cited by 41 publications

References 47 publications

Polydopamine Encapsulation of Fluorescent Nanodiamonds for Biomedical Applications

Polydopamine Encapsulation of Fluorescent Nanodiamonds for Biomedical Applications

Structure and Luminescence Properties of Nanonodiamonds Produced from Adamantane

Nanodiamonds: From Synthesis and Purification to Deposition Techniques, Hybrids Fabrication and Applications

Contact Info

Product

Resources

About