Publications: Material science

to

Dynamic Dispersal of Surface Layer Biofilm Induced by Nanosized TiO2 Based on Surface Plasmon Resonance and Waveguide

Publication year: 2018
Authors: Zhang P. 1,2, Guo J.S. 3, Yan P. 2, Chen Y.P. 2,4, Wang W. 5, Dai Y.Z. 1, Fang F. 2, Wang G.X. 6, Shen Y. 7
Published in: Applied and Environmental Microbiology, 2018, Vol. 84(9)
Pollutant degradation is present mainly in the surface layer of biofilms, and the surface layer is the most vulnerable to impairment by toxic pollutants. In this work, the effects of nanosized TiO2 (n-TiO2) [...]

Salt-Induced Control of the Grafting Density in Poly(ethylene glycol) Brush Layers by a Grafting-to Approach

Publication year: 2018
Authors: Ortiz R. 1, Olsen S. 2, Thormann E. 1
Published in: Langmuir, 2018
In this work, a method to obtain control of the grafting density during the formation of polymer brush layers by the grafting-to method of thiolated poly(ethylene glycol) onto gold is presented. [...]

Dynamic dispersal of surface layer biofilm induced by n-TiO2 based on surface plasmon resonance and waveguide

Publication year: 2018
Authors: Zhang P. 1,2, Guo J.S. 3, Yan P. 2, Chen Y.P. 4,2, Wang W. 5, Dai Y.Z. 1, Fang F. 2, Wang G.X. 6, Shen Y. 7
Published in: Applied and Environmental Microbiology, 2018
Pollutant degradation is mainly presented in the surface layer of biofilm, while the surface layer is the most vulnerable to the impairment of toxic pollutants. In this work, the effect of nanosized TiO2 [...]

Cyclodextrin-Functionalized Fiber Yarns Spun from Deep Eutectic Cellulose Solutions for Nonspecific Hormone Capture in Aqueous Matrices

Publication year: 2018
Authors: Orelma H. 1, Virtanen T. 1, Spoljaric S. 2, Lehmonen J. 1, Seppälä J. 2, Rojas O.J. 3, Harlin A. 1
Published in: Biomacromolecules, 2018, Vol. 19 (2), p. 652–661
A wood based yarn platform for capturing pharmaceutical molecules from water was developed. Cellulose fiber yarns were modified with cyclodextrins, and the capture of 17α-ethinyl estradiol (EE2), a synthetic [...]

Bovine Serum Albumin Adsorption at a Silica Surface Explored by Simulation and Experiment

Publication year: 2017
Authors: Kubiak-Ossovska K. 1, Tokarczyk K. 2, Jachimska B. 2, Mulheran A.P. 1
Published in: Journal of Physical Chemistry B, 2017, Vol. 121 (16), p. 3975–3986
Molecular details of BSA adsorption on a silica surface are revealed by fully atomistic molecular dynamics (MD) simulations (with a 0.5 μs trajectory), supported by dynamic light scattering (DLS), zeta potential, [...]

Layer-by-layer assemblies of highly connected polyelectrolyte capped-Pt nanoparticles for electrocatalysis of hydrogen evolution reaction

Publication year: 2017
Authors: Fenoy G.E. a, b, Maza E. a, c, Zelaya E. d, Marmisollé W.A. a, Azzaroni O. a
Published in: Applied Surface Science, 2017, Vol. 416, p. 24–32
Herein we present a simple one-step method to produce polyelectrolyte-capped Pt nanoparticles able to be assembled into layer-by-layer arrays [...]

Effect of Lipoxygenase Oxidation on Surface Deposition of Unsaturated Fatty Acids

Publication year: 2017
Authors: Tayeb A.H.1, Hubbe M.A.1, Zhang Y. 2 , Rojas O.J. 1,3
Published in: Langmuir, 2017, Vol. 33 (18), p. 4559–4566
We studied the interactions of lipid molecules (linoleic acid, glycerol trilinoleate and a complex mixture of wood extractives) with hydrophilic and hydrophobic surfaces (cellulose nanofibrils (CNFs) [...]

Quantitative interpretation of PAMAM dendrimers adsorption on silica surface

Publication year: 2017
Authors: Tokarczyk K., Jachimska B
Published in: Journal of Colloid and Interface Science, 2017 Vol. 503, p. 86-94
Understanding the dendrimer-solid support interaction is of great importance for dendrimer-based drug delivery system design. The maximum surface coverage on a hydrophilic silica surface was determined using [...]

Lignin Films from Spruce, Eucalyptus, and Wheat Straw Studied with Electroacoustic and Optical Sensors: Effect of Composition and Electrostatic Screening on Enzyme Binding

Publication year: 2017
Authors: Pereira A. 1,2, Hoeger I.C. 2, Ferrer A. 2 , Rencoret J. 1, del Rio J.C. 1, Kruus K. 3§, Rahikainen J. 3, Kellock M. 3, Gutiérrez A. 1, Rojas O.J. 2,4
Published in: Biomacromolecules, 2017, Vol. 18 (4), p. 1322–1332
Lignins were isolated from spruce, wheat straw, and eucalyptus by using the milled wood lignin (MWL) method. Functional groups and compositional analyses were assessed [...]

New Approach for Thickness Determination of Solution-Deposited Graphene Thin Films

Publication year: 2017
Authors: Jussila H. 1,2, Albrow-Owen T. 1, Yang H. 2, Hu G. 1, Aksimsek S. 2,3, Granqvist N. 4, Lipsanen H. 2, Howe R.C.T. 1, Sun Z. 2, Hasan T. 1
Published in: ACS Omega, 2017, Vol. 2 (6), p. 2630–2638
Solution processing-based fabrication techniques such as liquid phase exfoliation may enable economically feasible utilization of graphene and related nanomaterials in real-world devices in the near future. [...]

Effect of Ionic Strength and Surface Charge Density on the Kinetics of Cellulose Nanocrystal Thin Film Swelling

Publication year: 2017
Authors: Reid M.S. 1, Kedzior S.A. 1, Villalobos M. 2, Cranston E.D. 1
Published in: Langmuir, 2017, Vol. 33 (30), p. 7403–7411
This work explores cellulose nanocrystal (CNC) thin films (<50 nm) and particle–particle interactions by investigating film swelling in aqueous solutions with varying ionic strength [...]

Effect of Molecular Architecture on Cell Interactions and Stealth Properties of PEG

Publication year: 2017
Authors: Ozer I. a,b, Tomak A. c, Zareie H.M. c,d, Baran Y. e,f Bulmus V. a,b
Published in: Biomacromolecules, 2017
PEGylation, covalent attachment of PEG to therapeutic biomolecules, in which suboptimal pharmacokinetic profiles limiting their therapeutic utility are of concern, is a widely applied technology. However, this technology [...]

Interaction of industrially relevant cationic starches with cellulose

Publication year: 2017
Authors: Niegelhell K. a, b, Chemelli A. c, Hobisch J. d, Griesser T. e, Reiter H. b, f, Hirn U. a, f, Spirk S. a, b
Published in: Carbohydrate Polymers, Vol. 179, 2018, p. 290-296
Industrially relevant, commercially available cationic starches have been investigated towards their interaction capacity with cellulose thin films derived from trimethylsilyl cellulose (TMSC). The starches used in this study [...]

Surface plasmon resonance methodology for monitoring polymerization kinetics and morphology changes of brushes-evaluated with poly(N-isopropylacrylamide)

Publication year: 2017
Authors: G. Emilsson a, R.L. Schoch b, P. Oertle b, K. Xiong a, R.Y. H. Lim b, A.B. Dahlin a
Published in: Applied Surface Science, Vol. 396, p. 384-392
Polymerization from surfaces and the resulting “brushes” have many uses in the development of novel materials and functional interfaces. However, it is difficult to accurately monitor the polymerization rate, [...]

How Bound and Free Fatty Acids in Cellulose Films Impact Nonspecific Protein Adsorption

Publication year: 2017
Authors: Niegelhell K. a, Suessenbacher M. b, Sattelkow J. c, Plank H. c, Wang Y. d, Zhang K. d, Spirk S. a
Published in: Biomacromolecules, 2017
The effect of fatty acids and fatty acid esters to impair nonspecific protein adsorption on cellulose thin films is investigated. Thin films are prepared by blending trimethylsilyl cellulose solutions with either cellulose stearoyl ester [...]

Layer-by-layer self-assembly for carbon dots/chitosan-based multilayer: Morphology, thickness and molecular interactions

Publication year: 2017
Authors: T. da S.Pinto a, L.A. Alves a, G. de Azevedo Cardozo a, V.H.O. Munhoz a, R.M. Verly a, F.V. Pereira b, J.P. de Mesquita a
Published in: Materials Chemistry and Physics, Vol. 186 (2017), p. 81–89
Oxidized Carbon dots, prepared from the acid dehydration of cellulose, were used in the preparation of self-assembled films with the biopolymer chitosan. [...]

The effect of chemical additives on the strength, stiffness and elongation potential of paper

Publication year: 2017
Authors: Strand A. c, Khakalo A. a, Kouko J. b, Oksanen A. b, Ketola A. b, Salminen K. b, Rojas O. a, Retulainen E. b, Sundberg A. c
Published in: Nordic Pulp & Paper Research Journal, 2017, Vol. 32 No. 3, p. 324-335
The effects of wet-end additions of cationic starches and/or carboxymethyl cellulose (CMC) on paper properties was determined by papermaking trials. The aim of this study was to mitigate the distinctive decrease in strength [...]

Interaction of Tissue Engineering Substrates with Serum Proteins and Its Influence on Human Primary Endothelial Cells

Publication year: 2017
Authors: Mohan T. 1, Niegelhell K. 2, Nagaraj C. 3,4, Reishofer D. 2,5, Spirk S. 2,5, Olschewski A. 3,4, Stana Kleinschek K. 5, Kargl R. 2,5
Published in: Biomacromolecules, 2017, Vol. 18 (2), p. 413–421
Polymer-based biomaterials particularly polycaprolactone (PCL) are one of the most promising substrates for tissue engineering.The surface chemistry of these materials plays a major role [...]

Improving the mechanical properties of CNF films by NMMO partial dissolution with hot calender activation

Publication year: 2017
Authors: Orelma H., Korpela A., Kunnari V., Harlin A., Suurnäkki A.
Published in: Cellulose 2017
Reinforcing of cellulose nanofibril (CNF) films by partial dissolution with N-methylmorpholine-N-oxide (NMMO) was investigated. The method investigated is composed of impregnation of CNF film [...]

Homogeneous cellulose thin films by regeneration of cellulose xanthate: properties and characterization

Publication year: 2017
Authors: Weißl M. 1, 2, Niegelhell K. 2, Reishofer D. 2, Zankel A. 3, Innerlohinger J. 4, Spirk S. 2
Published in: Cellulose, 2017, Vol. 25, Issue 1, p. 711-721
The preparation and characterization of cellulose thin films derived from cellulose xanthate is reported. The films are prepared by depositing alkaline aqueous solutions cellulose xanthate onto silicon wafers, followed by [...]