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DC Field | Value | Language |
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dc.contributor.author | Havlik, Jan | - |
dc.contributor.author | Raabova, Helena | - |
dc.contributor.author | GULKA, Michal | - |
dc.contributor.author | Petrakova, Vladimira | - |
dc.contributor.author | Krecmarova, Marie | - |
dc.contributor.author | Masek, Vlastimil | - |
dc.contributor.author | Lousa, Petr | - |
dc.contributor.author | Stursa, Jan | - |
dc.contributor.author | BOYEN, Hans-Gerd | - |
dc.contributor.author | NESLADEK, Milos | - |
dc.contributor.author | Cigler, Petr | - |
dc.date.accessioned | 2016-09-15T07:58:36Z | - |
dc.date.available | 2016-09-15T07:58:36Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | ADVANCED FUNCTIONAL MATERIALS, 26(23), p. 4134-4142 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | http://hdl.handle.net/1942/22021 | - |
dc.description.abstract | Fluorination of diamonds modulates their optical and electromagnetic proper- ties and creates surfaces with increased hydrophobicity. In addition, fluorina- tion of diamonds and nanodiamonds has been recently shown to stabilize fluorescent nitrogen-vacancy centers, which can serve as extremely sensitive single atomic defects in a vast range of sensing applications from quantum physics to high-resolution biological imaging. Traditionally, fluorination of carbon nanomaterials has been achieved using harsh and complex experi- mental conditions, creating hydrophobic interfaces with difficult dispersibility in aqueous environments. Here, a mild benchtop approach to nanodiamond fluorination is described using selective Ag+-catalyzed radical substitution of surface carboxyls for fluorine. In contrast to other approaches, this high- yielding procedure does not etch diamond carbons and produces a highly hydrophilic interface with mixed C−F and C−OH termination. This dual func- tionalization of nanodiamonds suppresses detrimental hydrophobic interac- tions that would lead to colloidal destabilization of nanodiamonds. It is also demonstrated that even a relatively low surface density of fluorine contributes to stabilization of negatively charged nitrogen-vacancy centers and boosts their fluorescence. The simultaneous control of the surface hydrophilicity and the fluorescence of nitrogen-vacancy centers is an important issue enabling direct application of fluorescent nanodiamonds as nanosensors for quantum optical and magnetometry measurements operated in biological environment. | - |
dc.description.sponsorship | The authors are grateful to Dr. Vladimir Pribyl for the development of software for spectra processing. The work was supported by the Grant Agency of the Czech Republic Project No. 16-16336S and the Ministry of Health of the Czech Republic, Grant No. 15-33094A (all rights reserved). Irradiations of NDs were carried out at the CANAM infrastructure of the NPI ASCR Rez supported through MSMT Project No. LM2011019. H.R. acknowledges financial support from specific university research (MSMT No. 20/2015). M.N. would like to thank EU-FP7 Research Grant DIADEMS, Grant Agreement No. 611143, for the financial support. V.M. acknowledges to MSM project LO1304. | - |
dc.language.iso | en | - |
dc.rights | © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | - |
dc.title | Benchtop Fluorination of Fluorescent Nanodiamonds on a Preparative Scale: Toward Unusually Hydrophilic Bright Particles | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 4142 | - |
dc.identifier.issue | 23 | - |
dc.identifier.spage | 4134 | - |
dc.identifier.volume | 26 | - |
local.bibliographicCitation.jcat | A1 | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1002/adfm.201504857 | - |
dc.identifier.isi | 000379731500010 | - |
item.fulltext | With Fulltext | - |
item.fullcitation | Havlik, Jan; Raabova, Helena; GULKA, Michal; Petrakova, Vladimira; Krecmarova, Marie; Masek, Vlastimil; Lousa, Petr; Stursa, Jan; BOYEN, Hans-Gerd; NESLADEK, Milos & Cigler, Petr (2016) Benchtop Fluorination of Fluorescent Nanodiamonds on a Preparative Scale: Toward Unusually Hydrophilic Bright Particles. In: ADVANCED FUNCTIONAL MATERIALS, 26(23), p. 4134-4142. | - |
item.accessRights | Restricted Access | - |
item.contributor | Havlik, Jan | - |
item.contributor | Raabova, Helena | - |
item.contributor | GULKA, Michal | - |
item.contributor | Petrakova, Vladimira | - |
item.contributor | Krecmarova, Marie | - |
item.contributor | Masek, Vlastimil | - |
item.contributor | Lousa, Petr | - |
item.contributor | Stursa, Jan | - |
item.contributor | BOYEN, Hans-Gerd | - |
item.contributor | NESLADEK, Milos | - |
item.contributor | Cigler, Petr | - |
item.validation | ecoom 2017 | - |
crisitem.journal.issn | 1616-301X | - |
crisitem.journal.eissn | 1616-3028 | - |
Appears in Collections: | Research publications |
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Havlik_et_al-2016-Advanced_Functional_Materials.pdf Restricted Access | Published version | 875.99 kB | Adobe PDF | View/Open Request a copy |
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