Covalent attachment of fluorescence probes on the PEEK–OH film surface

Henneuse-Boxus, Catherine; Ro, Astrid De; Bertrand, Patrick; Marchand‐Brynaert, Jacqueline

doi:10.1016/s0032-3861(99)00407-3

Cited by 18 publications

(15 citation statements)

References 33 publications

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“…3,[16][17][18] Few researchers have investigated to functionalize the PEEK for several applications. To the best of author's knowledge, the nitration, 19 amination, 9,10,19 sulfonation, 9,10 hydroxylation, 9,10,19,20 and pendant sulfonic acid phenyl groups 21 have been done to improve the performance of PEEK to date.…”

Section: Introductionmentioning

confidence: 99%

“…This is a confirmation of ACOOH group in functionalized PEEK, as stated in other reports. 20,26,27 Then in the reaction Scheme of 1(d, Fig. 1), the product (HOOC-PEEK-COCl) shows another small peak at 1789 cm…”

mentioning

confidence: 98%

“…26 The final product (HOOC-PEEK-NH 2 ) shows two extra peaks at 1645 and 3392 cm À1 , these are for NAH bond of amine (ANH 2 ) group along with >C¼ ¼O bond of carboxylic acid group at 1714 cm À1 and OAH stretching vibration at 3072 cm À1 as reported in other studies. 19,20,24,26 Since substitution of all the ACOOH groups from the polymer (PEEK-COOH) is very difficult, few parts of ACOOH groups are replaced by ANH 2 group. This result also supports that the backbone of functionalized PEEK materials is not broken at all even in the final product (HOOC-PEEK-NH 2 ).…”

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confidence: 99%

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Functionalized poly(ether ether ketone): Improved mechanical property and acellular bioactivity

Pramanik

Kar

2011

J of Applied Polymer Sci

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Poly(ether ether ketone), PEEK, was functionalized by addition of pendant functional groups, that is, acetyl, carboxylic, acyl chloride, amide, and amine groups in the benzene ring of polymer backbone without substituting the parent (ether or ketonic) functional groups of polymer to improve the mechanical and surface adhesivity with acellular inorganic biomaterials. The functional groups of virgin PEEK and functionalized PEEK were identified by Fourier transform infrared spectroscopy and 13 C nuclear magnetic resonance. The crystallinity was studied by X-ray diffraction and further supported by differential scanning calorimetry (DSC) analysis. Similarly, the change in glass transition temperature was confirmed by the DSC and dynamic mechanical analysis (DMA). The improved mechanical property was also evaluated by DMA. The excellent surface adhesivity and bioactivity were revealed by acellular in vitro test using simulated body fluid.

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Section: Introductionmentioning

confidence: 99%

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confidence: 98%

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confidence: 99%

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Functionalized poly(ether ether ketone): Improved mechanical property and acellular bioactivity

Pramanik

Kar

2011

J of Applied Polymer Sci

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“…TOF‐SIMS is a technique based on mass spectrometry and is therefore said not to be a quantitative technique. However, in spite of TOF‐SIMS not being a quantitative technique in principle, many workers have made extensive efforts to find ways to use TOF‐SIMS quantitatively 12–62. Whether or not TOF‐SIMS can be said to be quantitative is still debated.…”

Section: Introductionmentioning

confidence: 99%

Quantification of grafted poly(ethylene glycol)‐silanes on silicon by time‐of‐flight secondary ion mass spectrometry

et al. 2002

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Silicon grafted monodisperse poly(ethylene glycol) (PEG) silanes with various PEG chain lengths and mixtures of these were systematically analyzed with static time-of-flight secondary ion mass spectrometry (TOF-SIMS). The mass spectra show differences in the various relative signal intensities, an observation that was used to elucidate important aspects of the grafting process. The relationship between PEG-silane fragment ion abundances and Si(+) ion abundances were used to (i) qualitatively describe layer thicknesses of grafted mixtures of PEG-silanes on silicon, (ii) construct a calibration curve from which PEG chain length (or molecular mass) can be determined and (iii) quantitatively determine surface mixture compositions of grafted monodisperse PEG-silanes of different chain lengths (3, 7 and 11 PEG units). The results suggest that discrimination does take place in the adsorption process. The PEG-silane with the shorter PEG chain is discriminated for mixtures containing PEG3-silane, whereas the PEG-silane with the longer PEG chain is discriminated in PEG7/PEG11-silane mixtures. The origin of this difference in adsorption behavior is not well understood. Aspects of the grafting process and the TOF-SIMS analyses are discussed.

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“…4 Despite the obvious potential of fluorometry, there have been only a few examples reported for the characterization of surface functionalities on (bio)analytically relevant supports. [4][5][6][7][8][9][10] Fluorometric characterization of surface functions is complicated by different factors, 8,11 including nonspecific adsorption, 8 an inhomogeneous dye distribution or penetration of dye molecules into polymers, [12][13][14] dye-dye and dye-matrix interactions, and the sensitivity of the fluorophore's spectroscopic properties to the microenvironment. 25 Because the potential of fluorometry is still under debate, this report discusses the possibilities of and general requirements on the fluorometric characterization of dye-labeled surface functionalities, exemplary for plasma-functionalized polypropylene (PP) films.…”

Section: Introductionmentioning

confidence: 99%

Fluorescence Measurements on Functionalized Polymer Surfaces—Problems and Troubleshooting

Hoffmann

Mix

Resch‐Genger

et al. 2008

Annals of the New York Academy of Sciences

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Plasma-chemically tailor-made polymer surfaces are of ever-increasing importance to control surface properties in material science, as well as for (bio)analytical and biomedical applications. For the characterization of such systems, sensitive fluorescence techniques are attractive tools. To underline the potential and drawbacks of these strategies, this article addresses different problems that complicate fluorometric analysis. To overcome some of these limitations, such as nonspecific adsorption of unreacted fluorescent probes, we discuss potential troubleshooting, including the use of a chromogenic and fluorogenic pyrylium dye for the detection of amino functionalities at polypropylene surfaces.

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Covalent attachment of fluorescence probes on the PEEK–OH film surface

Cited by 18 publications

References 33 publications

Functionalized poly(ether ether ketone): Improved mechanical property and acellular bioactivity

Functionalized poly(ether ether ketone): Improved mechanical property and acellular bioactivity

Quantification of grafted poly(ethylene glycol)‐silanes on silicon by time‐of‐flight secondary ion mass spectrometry

Fluorescence Measurements on Functionalized Polymer Surfaces—Problems and Troubleshooting

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