Micro-patterned surfaces based on plasma modification of PEO-like coating for biological applications

Bretagnol, F.; Kylián, Ondřej; Hasiwa, Marina; Ceriotti, Laura; Rauscher, Hubert; Ceccone, Giacomo; Gilliland, Douglas; Colpo, Pascal; Rossi, François

doi:10.1016/j.snb.2006.08.040

Cited by 54 publications

(67 citation statements)

References 31 publications

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“…It is clear that significantly less protein absorption was observed on the 10 W film than on the higher power films. In another study reported by Bretagnol et al [29], BSA adsorption on a diglyme plasma-polymerized surface deposited under pulsed plasma discharge conditions yielded a value (0.5%) that was similar to that reported for the 10 W film in this study (0.6%). This was compared with BSA adsorption measured on a silicon wafer control, which yielded 12 per cent N content after incubation in BSA (100 mg ml 21 for 1 h).…”

Section: Characterization Of the Films Using Atomic Force Microscopysupporting

confidence: 90%

“…This was compared with BSA adsorption measured on a silicon wafer control, which yielded 12 per cent N content after incubation in BSA (100 mg ml 21 for 1 h). A comparison of the C -O (ether related) component, as measured by XPS, showed that the diglyme surface in Bretagnol's study was higher, at 73 per cent, than the 10 W film reported in this study, which was 62 per cent [29]. However, Salim et al [30].…”

Section: Characterization Of the Films Using Atomic Force Microscopycontrasting

confidence: 51%

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An X-ray and neutron reflectometry study of ‘PEG-like’ plasma polymer films

Menzies

Nelson

Shen

et al. 2011

J. R. Soc. Interface.

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Plasma-enhanced chemical vapour-deposited films of di(ethylene glycol) dimethyl ether were analysed by a combination of X-ray photoelectron spectroscopy, atomic force microscopy, quartz crystal microbalance with dissipation monitoring (QCM-D), X-ray and neutron reflectometry (NR). The combination of these techniques enabled a systematic study of the impact of plasma deposition conditions upon resulting film chemistry (empirical formula), mass densities, structure and water solvation, which has been correlated with the films' efficacy against protein fouling. All films were shown to contain substantially less hydrogen than the original monomer and absorb a vast amount of water, which correlated with their mass density profiles. A proportion of the plasma polymer hydrogen atoms were shown to be exchangeable, while QCM-D measurements were inaccurate in detecting associated water in lower power films that contained loosely bound material. The higher protein resistance of the films deposited at a low load power was attributed to its greater chemical and structural similarity to that of poly(ethylene glycol) graft surfaces. These studies demonstrate the utility of using X-ray and NR analysis techniques in furthering the understanding of the chemistry of these films and their interaction with water and proteins.

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Section: Characterization Of the Films Using Atomic Force Microscopysupporting

confidence: 90%

Section: Characterization Of the Films Using Atomic Force Microscopycontrasting

confidence: 51%

An X-ray and neutron reflectometry study of ‘PEG-like’ plasma polymer films

Menzies

Nelson

Shen

et al. 2011

J. R. Soc. Interface.

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“…The nanostructures produced by colloidal and electron-beam lithography have been extensively studied with different biological tests and protein adsorption experiments [17,67,68,69,70,73]. We present below two significant examples indicating the particular behaviour of nanostructures as compared to non-patterned surfaces.…”

Section: Protein Adsorption On Nanopatternsmentioning

confidence: 99%

Applications and challenges of plasma processes in nanobiotechnology

Rossi¹,

Colpo²

2011

J. Phys. D: Appl. Phys.

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Abstract:We present an overview of the possibilities offered by plasma technologies, in particular the combination plasma polymers deposition, colloidal lithography, ebeam lithography and microcontact printing, to produce micro and nanostructured surfaces with chemical and topographical contrast for applications in NanoBiotechnology. It is shown that chemical and topographical patterns can be obtained on different substrates, with dimensions down to few tenths of 10 nm. The applications of these nanostructured surfaces in biology, biochemistry and biodetection are presented and the advantages and limitation of the plasma techniques in this context underlined.

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“…Although most cell-based assays are still being performed in 96-well plates, many studies are moving toward higher density plate formats and system miniaturization to improve the performance or functionality of these assays [3]. Cell microarrays that can hold thousands of spots on one slide provide an attractive solution [4], and significant efforts have focused on the fabrication of cell microarrays using a variety of patterning techniques such as photolithography or soft lithography over last decades [5][6][7][8][9][10][11][12][13][14]. In most of these applications, cells are immobilized on a two-dimensional flat substrate, although most cells exist in a fibrous extracellular matrix in native tissue [15].…”

Section: Introductionmentioning

confidence: 99%