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Label-free evaluation of carbon nanoparticles in Layer-by-Layer self-assembled enzyme-based biosensors

Publication year: 2017
Authors: David M. a, Florescu M. b, Barsan M. M. c, Brett M.A.C. c
Published in: Procedia Technology, Vo. 27, 2017, p. 304-305
The immobilization of biomolecules and the enhancement of the electron transfer are important factors regarding the performances of the enzyme-based biosensors. Layer-by-layer (LbL) strategies can be effectively used [...]

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 [...]

A Surface Plasmon Resonance Histamine Sensor Based on an Electropolymerized Molecularly Imprinted Polymer (E-MIP)

Publication year: 2017
Authors: Hubilla F.A.D., Mabilangan A.I., Advincula R.C., del Mundo F.R.
Published in: MATEC Web of Conferences, Vol. 95, 2017
In this paper, histamine sensing by surface plasmon resonance (SPR) spectroscopy using an electropolymerized molecularly imprinted polymer (E-MIP) of functionalized polyterthiophene and histamine is reported. [...]

Taste masking effect of chlorogenic acid (CGA) on bitter drugs evaluated by taste sensor and surface plasmon resonance on the basis of CGA-Drug interactions

Publication year: 2017
Authors: Shiraishi S.1, Haraguchi T., Nakamura S., Li D., Kojima H., Yoshida M., Uchida T.
Published in: Chemical and Pharmaceutical Bulletin, Vol. 65 (2017), No. 2, p. 127-13
The purpose of this study was to evaluate the taste-masking effects of chlorogenic acid (CGA) on bitter drugs using taste sensor measurements and surface plasmon resonance (SPR) analysis of CGA-drug interactions. [...]

Rapid and Highly Sensitive Detection of Dopamine Using Conjugated Oxaborole-Based Polymer and Glycopolymer Systems

Publication year: 2017
Authors: Jiang K., Wang Y., Thaku G., Kotsuchibashi Y., Naicker S., Narain R., Thundat T.
Published in: ACS Applied Materials & Interfaces, 2017, Vol. 9 (18), p. 15225–15231
A conjugated polymer interface consisting of an oxaborole containing polymer and a glycopolymer was used for achieving very high selectivity in dopamine (DA) detection. [...]

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 [...]

Endothelial cells' biophysical, biochemical, and chromosomal aberrancies in high ‐ glucose condition within the diabetic range

Publication year: 2017
Authors: Rezabakhsh A. 1,2, Nabat E. 2,3, Yousefi M. 4, Montazersaheb S. 2,5, Cheraghi O. 6, Mehdizadeh A. 7, Fathi F.8, Movassaghpour A.A. 9, Maleki-DIzaji N. 10, Rahbarghazi R. 2,11, Garjani A. 1,2,10
Published in: Cell Biochemistry & Function, 2017, p. 1-15
To date, many studies have been conducted to find out the underlying mechanisms of hyperglycemia-induced complications in diabetes mellitus, attributed to the cellular pathologies of different cells[...]

Filaments with Affinity Binding and Wet Strength Can Be Achieved by Spinning Bifunctional Cellulose Nanofibrils

Publication year: 2017
Authors: Vuoriluoto M. 1, Orelma H. 1, Lundahl M. 1, Borghe M. 1, Rojas O.J.1,2,3
Published in: Biomacromolecules, 2017, Vol.18 (6), p. 1803–1813
We demonstrate benzophenone (BP) conjugation via amine-reactive esters onto oxidized cellulosic fibers that were used as precursors, after microfluidization, of photoactive cellulose nanofibrils (CNF). [...]

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, [...]

Kinetic and thermodynamic study of bovine serum albumin interaction with rifampicin using surface plasmon resonance and molecular docking methods

Publication year: 2017
Authors: Sharifi M. 1, Dolatabadi J.E. 2, Fathi F. 3, Rashidi M. 2, Jafari B. 4, Tajalli H. 1, Rashidi M.R. 2
Published in: Journal of Biomedical Optics, 2017, Vol. 22(3), p.
The interaction of bovine serum albumin (BSA) with various drugs, such as antibiotics, due to the importance of BSA in drug delivery has attracted increasing research attention at present. [...]

Surface plasmon resonance biosensor for enzymatic detection of small analytes

Publication year: 2017
Authors: Miyazaki C.M., Shimizu F.M., Mejía-Salazar J.R., Oliveira O.N., Ferreira M.
Published in: Nanotechnology, 2017, Vol. 28(14), p. 145501
Surface plasmon resonance (SPR) biosensing is based on the detection of small changes in the refractive index on a gold surface modified with molecular recognition materials, thus being mostly limited to detecting large molecules. [...]

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. [...]

Early-stage detection of VE-cadherin during endothelial differentiation of human mesenchymal stem cells using SPR biosensor

Publication year: 2017
Authors: Fathi F. 1, Rezabakhsh A. 2, Rahbarghazi R. 3, Rashidi M.R. 4
Published in: Biosensors and Bioelectronics, 2017, Vol. 96, p. 358-366
Surface plasmon resonance (SPR) biosensors are most commonly applied for real-time dynamic analysis and measurement of interactions in bio-molecular studies and cell-surface analysis without the need for labeling processes. [...]

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 [...]

Controlled Immobilization Strategies to Probe Short Hyaluronan-Protein Interactions

Publication year: 2016
Authors: Burcu Baykal Minsky 1,2, Christiane H. Antoni 1,2, Heike Boehm 1,2,3
Published in: Nature Scientific Reports, 2016, Vol. 6, article n. 21608
Well-controlled grafting of small hyaluronan oligosaccharides (sHA) enables novel approaches to investigate biological processes such as angiogenesis, immune reactions and cancer metastasis. [...]

Adsorption Studies of Organophosphonic Acids on Differently Activated Gold Surfaces

Publication year: 2016
Authors: Katrin Niegelhell †, Simon Leimgruber †‡, Thomas Grießer §, Christian Brandl ∥, Boril Chernev ∥, Robert Schennach ⊥, Gregor Trimmel †, and Stefan Spirk †
Published in: Langmuir, 2016, Vol. 32 (6), p. 1550–1559
In this study, the formation of self-assembled monolayers consisting of three organophosphonic acids (vinyl-, octyl-, and tetradecylphosphonic acid) from isopropanol solutions onto differently activated gold surfaces is studied in situ and in real time using multiparameter surface plasmon resonance (MP-SPR). [...]

Influence of the sulfation degree of glycosaminoglycans on their multilayer assembly with poly-l-lysine

Publication year: 2016
Authors: Teixeira R. 1,2, Reis R.L. 1,2, Pashkuleva I. 1,2
Published in: Colloids and Surfaces B: Biointerfaces, 2016, Vol. 145, p. 567-575
We report on the build-up and the intrinsic properties of polyelectrolyte multilayer films from poly-l-lysine and glycosaminoglycans (GAGs) with different sulfation degree, i.e. different charge [...]

Toxin-induced pore formation is hindered by intermolecular hydrogen bonding in sphingomyelin bilayers

Publication year: 2016
Authors: Sara García-Linares a, b, Juan Palacios-Ortega a,b, Tomokazu Yasuda b,c, Mia Åstrand b, José G. Gavilanes a, Álvaro Martínez-del-Pozo a, J. Peter Slotte b
Published in: Biochimica et Biophysica Acta (BBA) - Biomembranes, Vol. 1858, Issue 6, p. 1189–1195
Sticholysin I and II (StnI and StnII) are pore-forming toxins that use sphingomyelin (SM) for membrane binding. We examined how hydrogen bonding among membrane SMs affected the StnI- and StnII-induced pore formation process, resulting in bilayer permeabilization. [...]

Dopamine-assisted deposition and zwitteration of hyaluronic acid for the nanoscale fabrication of low-fouling surfaces

Publication year: 2016
Authors: Huijun Ye b, Yinqiang Xia b, Zhiqiang Liu b, Renliang Huang *a, Rongxin Su *b,c,d, Wei Qi b,c,d, Libing Wang *e, Zhimin He b
Published in: Journal of Materials Chemistry B, 2016, Vol. 4, p. 4084-4091
In this study, we proposed a bioinspired approach for the deposition and zwitteration of hyaluronic acid (HA) with a reduced glutathione (GSH) to form a composite layer that functions as a low fouling coating. [...]

Regulation of Sticholysin II-Induced Pore Formation by Lipid Bilayer Composition, Phase State, and Interfacial Properties

Publication year: 2016
Authors: Palacios-Ortega J. 1,2, García-Linares S. 1,2, Åstrand M. 2, Al Sazzad M.A. 2, Gavilanes J.G. 1, Martínez-Del-Pozo Á. 1, Slotte J.P. 2
Published in: Langmuir, 2016, 32(14), p. 3476-84
Sticholysin II (StnII) is a pore-forming toxin that uses sphingomyelin (SM) as the recognition molecule in targeting membranes. After StnII monomers bind to SM, several toxin monomers act in concert to oligomerize into a functional pore. [...]