Tailored modification of quartz surfaces by covalent immobilization of small molecules ( γ -aminopropyltriethoxysilane), monodisperse macromolecules (dendrimers), and poly(styrene/acrolein/divinylbenzene) microspheres with narrow diameter distribution

Miksa, Beata; Słomkowski, Stanisław; Chehimi, M. M.; Delamar, Michel; Majoral, Jean Pierre; Caminade, Anne‐Marie

doi:10.1007/s003960050367

Cited by 44 publications

(28 citation statements)

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“…For example, the surface of 1 g of polystyrene particles (density of polystyrene = 1.05 g/cm 3 ) with D n = 0.5 µm (number average diameter) equals 11.4 m 2 . There are various ways of using microspheres for medical diagnostics.…”

Section: Introductionmentioning

confidence: 99%

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Poly(styrene/acrolein) and poly(styrene/α-tert-butoxy-ω- vinylbenzyl-polyglycidol) microspheres. Similarities and differences

Basiǹska

2002

E-Polymers

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Properties of two types of polystyrene microspheres with polyacrolein and polyglycidol components in their surface layers are compared. Microspheres were prepared in batch radical emulsifier-free emulsion copolymerizations of styrene with acrolein and/or α-tert-butoxy-ω-vinylbenzyl-polyglycidol macromonomer (M n = 2700). Polymerizations were initiated with potassium peroxodisulfate, and the ratio of initial concentrations of styrene and initiator was constant. Number average diameters of poly(styrene/acrolein) (P(S/A)) and of poly(styrene/polyglycidol) (P(S/PGL)) particles were in the range of 200 -650 nm and decreased with increasing concentration of acrolein and/or polyglycidol in the polymerizing mixtures. The diameter polydispersity of synthesized particles (D /D w n ) was usually lower than 1.02. X-ray photoelectron spectroscopy for P(S/A) and P(S/PGL) microspheres showed that surface layers of particles were significantly enriched in polyacrolein or polyglycidol segments, surface fractions of which increased with increasing concentration of the more hydrophilic comonomer in the polymerizing mixture. In the case of P(S/A) particles, the maximal fraction of polyacrolein approached 80 mol-%, whereas for P(S/PGL) particles the maximal surface fraction of PGL was 42 mol-%. Human serum albumin was used as a model protein for studies of attachment onto P(S/A) and P(S/PGL) microspheres. It has been found that for both kinds of particles, the maximal surface concentration of attached (adsorbed and/or covalently immobilized) protein decreased with increasing fraction of hydrophilic component in the particle surface layer (polyacrolein or polyglycidol units). In the case of P(S/A) particles, adsorption always accompanied covalent immobilization of proteins. To the contrary, covalent immobilization of proteins onto the P(S/PGL) microspheres proceeded without adsorption of proteins.

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Section: Introductionmentioning

confidence: 99%

“…Microspheres could be used simply in suspensions or as elements of more complex systems (biosensors). For the latter applications, microspheres were used for the controlled surface modification by formation of particle monolayer assemblies at interfaces [2,3].…”

Section: Introductionmentioning

confidence: 99%

Poly(styrene/acrolein) and poly(styrene/α-tert-butoxy-ω- vinylbenzyl-polyglycidol) microspheres. Similarities and differences

Basiǹska

2002

E-Polymers

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“…have described the synthesis and the reactivity at the surface and in the internal layers of phosphorus-containing dendrim ers. 7±9 As dendrim ers have interesting properties relevant for adhesion science 2 and surface m odi® cation, 10,11 we became interested in characterizing their surface properties by X-ray photoelectron spectroscopy (XPS). XPS is a very well-established technique for the characterization of organic m aterials ranging from simple m olecules 12±16 to polym er 17,18 and colloidal 19 ±22 surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…25 Recently, we have characterized supramolecular assemblies containing a dendrimer bearing a P5 S functional group. 10,11 Sulfur and phosphorus were used as unique elemental markers for the dendrimer.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Dendrimers by X-Ray Photoelectron Spectroscopy

et al. 1999

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“…In this regard, our group has developed a strong expertise on the covalent immobilization of PPH dendrimers onto glass slides. 20 This technique, which was made possible by preliminary experiments on quartz surfaces modified with APTES, 21 has led to the development of sensors, namely dendrichips TM . Nevertheless, we have never explored in-depth structural and spectroscopic investigations on the nature of the hybrid interface related to the use of bulk support (glass, mica, quartz plates).…”

Section: Introductionmentioning

confidence: 99%

PPH dendrimers grafted on silica nanoparticles: surface chemistry, characterization, silver colloids hosting and antibacterial activity

et al. 2013

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 10069To link to this article : dendrimers grafted on silica nanoparticles: surface chemistry, characterization, silver colloids hosting and antibacterial activity. (2013) RSC Advances, vol. 3 (n° 41).Any correspondance concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr PPH dendrimers grafted on silica nanoparticles: surface chemistry, characterization, silver colloids hosting and antibacterial activity3

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Tailored modification of quartz surfaces by covalent immobilization of small molecules ( γ -aminopropyltriethoxysilane), monodisperse macromolecules (dendrimers), and poly(styrene/acrolein/divinylbenzene) microspheres with narrow diameter distribution

Cited by 44 publications

References 1 publication

Poly(styrene/acrolein) and poly(styrene/α-tert-butoxy-ω- vinylbenzyl-polyglycidol) microspheres. Similarities and differences

Poly(styrene/acrolein) and poly(styrene/α-tert-butoxy-ω- vinylbenzyl-polyglycidol) microspheres. Similarities and differences

Characterization of Dendrimers by X-Ray Photoelectron Spectroscopy

PPH dendrimers grafted on silica nanoparticles: surface chemistry, characterization, silver colloids hosting and antibacterial activity

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