Termination of diamond surfaces with hydrogen, oxygen and fluorine using a small, simple plasma gun

Salvadori, M. C.; Araujo, W. W. R.; Teixeira, F. S.; Cattani, M.; Pasquarelli, A.; Окс, Е. М.; Brown, I.G.

doi:10.1016/j.diamond.2010.01.002

Cited by 35 publications

(35 citation statements)

References 32 publications

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“…4) allowed for identification of the regions with different terminations. 23 Note that in Figure 4, the contrast is not related to the morphology, it is due to different electrical properties of the O-and H-terminated surfaces. The contact angle for diamond surfaces with oxygen terminations was 75°, and for H-terminated surfaces was 83°.…”

Section: Resultsmentioning

confidence: 99%

“…3) presenting a potential difference of about 80 mV. 23 Secondary electron imaging (Fig. 4) allowed for identification of the regions with different terminations.…”

Section: Resultsmentioning

confidence: 99%

“…The wettability of the different surfaces was quantified using contact angle measurements, 23 using a KSV Modular CAM 200 System. Samples with a diamond surface containing just one kind of termination were used for contact angle measurements.…”

mentioning

confidence: 99%

“…23 Initially, samples of diamond film with hydrogen termination were coated with polymethylmethacrylate polymer (PMMA) used as a resist for electron beam lithography. Next, a selected area of the PMMA was electron beam scanned in the SEM ( JSM-6460 LV), creating a pattern by using an e-beam nanolithography system (Nanometer Pattern Generation System).…”

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confidence: 99%

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Tooth Tissue Engineering: The Influence of Hydrophilic Surface on Nanocrystalline Diamond Films for Human Dental Stem Cells

Duailibi

Ferreira

et al. 2013

Tissue Engineering Part A

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Section: Resultsmentioning

confidence: 99%

“…3) presenting a potential difference of about 80 mV. 23 Secondary electron imaging (Fig. 4) allowed for identification of the regions with different terminations.…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Tooth Tissue Engineering: The Influence of Hydrophilic Surface on Nanocrystalline Diamond Films for Human Dental Stem Cells

Duailibi

Ferreira

et al. 2013

Tissue Engineering Part A

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“…36,37 The DLC samples were treated with oxygen plasma and with sulfur hexafluoride (SF 6 ) plasma, in separate samples, generating surfaces with oxygen terminations and fluorine terminations, respectively. 38,39 The facility for plasma treatment has been described previously. 40 C. Contact angle and atomic force microscopy (AFM) imaging…”

Section: B Surface Modificationmentioning

confidence: 99%

Cell adhesion and growth on surfaces modified by plasma and ion implantation

Araujo

Teixeira

Silva

et al. 2014

Journal of Applied Physics

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In this study, we show and discuss the results of the interaction of living CHO (Chinese Hamster Ovary) cells, in terms of adhesion and growth on glass, SU-8 (epoxi photoresist), PDMS (polydimethylsiloxane), and DLC (hydrogen free diamond-like carbon) surfaces. Glass, SU-8, and DLC but not PDMS showed to be good surfaces for cell growth. DLC surfaces were treated by oxygen plasma (DLC-O) and sulfur hexafluoride plasma (DLC-F). After 24 h of cell culture, the number of cells on DLC-O was higher than on DLC-F surface. SU-8 with silver implanted, creating nanoparticles 12 nm below the surface, increased significantly the number of cells per unit area. V C 2014 AIP Publishing LLC. [http://dx

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Benchtop Fluorination of Fluorescent Nanodiamonds on a Preparative Scale: Toward Unusually Hydrophilic Bright Particles

Havlík

Raabová

Gulka

et al. 2016

Adv Funct Materials

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Fluorination of diamonds modulates their optical and electromagnetic properties and creates surfaces with increased hydrophobicity. In addition, fl uorination of diamonds and nanodiamonds has been recently shown to stabilize fl uorescent 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, fl uorination of carbon nanomaterials has been achieved using harsh and complex experimental conditions, creating hydrophobic interfaces with diffi cult dispersibility in aqueous environments. Here, a mild benchtop approach to nanodiamond fl uorination is described using selective Ag + -catalyzed radical substitution of surface carboxyls for fl uorine. In contrast to other approaches, this highyielding procedure does not etch diamond carbons and produces a highly hydrophilic interface with mixed C−F and C−OH termination. This dual functionalization of nanodiamonds suppresses detrimental hydrophobic interactions that would lead to colloidal destabilization of nanodiamonds. It is also demonstrated that even a relatively low surface density of fl uorine contributes to stabilization of negatively charged nitrogen-vacancy centers and boosts their fl uorescence. The simultaneous control of the surface hydrophilicity and the fl uorescence of nitrogen-vacancy centers is an important issue enabling direct application of fl uorescent nanodiamonds as nanosensors for quantum optical and magnetometry measurements operated in biological environment.

show abstract

Termination of diamond surfaces with hydrogen, oxygen and fluorine using a small, simple plasma gun

Cited by 35 publications

References 32 publications

Tooth Tissue Engineering: The Influence of Hydrophilic Surface on Nanocrystalline Diamond Films for Human Dental Stem Cells

Tooth Tissue Engineering: The Influence of Hydrophilic Surface on Nanocrystalline Diamond Films for Human Dental Stem Cells

Cell adhesion and growth on surfaces modified by plasma and ion implantation

Benchtop Fluorination of Fluorescent Nanodiamonds on a Preparative Scale: Toward Unusually Hydrophilic Bright Particles

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