Formation of multilayers on silica surfaces of a cationic polyelectrolyte and dissolved and colloidal substances originating from mechanical wood pulp-Adsorption and influence on adhesion

Rundlöf, Mats; Wågberg, Lars

doi:10.1016/j.colsurfa.2004.01.029

Cited by 12 publications

(6 citation statements)

References 40 publications

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“…Exponentially growing films are likely more hydrated, hence softer, than linearly growing ones (Richert et al, 2004b). PEM have received great attention due to their widespread potential applications ranging from filtration (Liu and Bruening, 2004) to paper making (Rundlof and Wagberg, 2004), and in particular to the field of biomaterials (Schultz et al, 2005). Exponentially growing films play a dominant role in this context.…”

Section: Introductionmentioning

confidence: 99%

Effect of crosslinking on the elasticity of polyelectrolyte multilayer films measured by colloidal probe AFM

Francius¹,

Hemmerlé²,

Ohayon³

et al. 2006

Microscopy Res & Technique

124

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A homemade colloidal probe atomic force microscope was used to perform nanoindentation with a spherical probe of 5 microm in diameter, at different approach velocities in order to extract the Young's modulus, E0, of poly(L-lysine)/hyaluronan (PLL/HA) films. This parameter is of prime importance to control cellular adhesion. The films were either kept in their native form or cross-linked with a mixture of 1-ethyl-3-(3-dimethyl aminopropyl)carbodiimide (EDC) and N-hydrosulfosuccinimide (sulfo-NHS), where the EDC concentration was varied from 1 up to 100 mg mL(-1) (approximately from 5 to 500 mM). A model based on Hertz mechanics was used to account for the interactions between film and probe. It is shown that the Young's modulus varies with the approach velocity for the native (PLL/HA) films, whereas for cross-linked ones, E0 is independent from the velocity over the whole range investigated. It is found that for native films, E0 takes a value of 3 kPa at low approach velocities, a velocity domain that should be relevant in cellular adhesion processes. The Young's modulus increases with the EDC concentration used to cross-link the films and levels off at a value of about 400 kPa for EDC concentrations exceeding 40 mg mL(-1). Thus, it is possible by crosslinking PLL/HA films to control their elastic properties with the aim to alter their behavior as to the cellular adhesion.

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Section: Introductionmentioning

confidence: 99%

Effect of crosslinking on the elasticity of polyelectrolyte multilayer films measured by colloidal probe AFM

Francius¹,

Hemmerlé²,

Ohayon³

et al. 2006

Microscopy Res & Technique

124

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“…[18][19][20] As a result of acidic hydrolysis, the surface of CNC is negatively charged and hence CNC can be combined with a series of positively charged polymers to fabricate thin lms by LbL assembly. [21][22][23][24][25][26] Carboxymethyl cellulose (CMC) is a negatively charged derivative of cellulose and it has been paired with various cationic polyelectrolytes, such as poly(diallyldimethylammonium) (PDDA), 27,28 PAH, 29,30 PEI and chitosan. 31,32 A cationic cellulose derivative, quaternized hydroxyethylcellulose ethoxylate (HECE), was reported to be LbL-assembled with CMC to prepare a thin lm.…”

Section: Introductionmentioning

confidence: 99%

Interfacial complexation behavior of anionic and cationic cellulose derivatives

et al. 2014

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“…In many instances, polymers of different molecular weight, charge characteristics, and/or chemical composition were added to colloidal dispersions either simultaneously or sequentially [5][6][7][8][9][10][11][12][13]. However, in this type of experiment the resulting layer characteristics are strongly dependent on the relative concentrations of polymer and colloid, which may vary strongly during the mixing period and thus lead to a strong polydispersity of the surface coating over long periods [14].…”

Section: Introductionmentioning

confidence: 98%

Relaxation phenomena of polyethyleneimine molecules within saturated homogeneous and heterogeneous layers adsorbed at a silica/water interface

Oulanti

Pefferkorn

Champ³

et al. 2006

Journal of Colloid and Interface Science

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Formation of multilayers on silica surfaces of a cationic polyelectrolyte and dissolved and colloidal substances originating from mechanical wood pulp-Adsorption and influence on adhesion

Cited by 12 publications

References 40 publications

Effect of crosslinking on the elasticity of polyelectrolyte multilayer films measured by colloidal probe AFM

Effect of crosslinking on the elasticity of polyelectrolyte multilayer films measured by colloidal probe AFM

Interfacial complexation behavior of anionic and cationic cellulose derivatives

Relaxation phenomena of polyethyleneimine molecules within saturated homogeneous and heterogeneous layers adsorbed at a silica/water interface

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