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ORP2 interacts with phosphoinositides and controls the subcellular distribution of cholesterol

Publication year: 2019
Authors: Koponen A. a, Arora A. a, Takahashi K. b, Kentala H. a, Kivelä A.M. a, Jääskeläinen E. a, Peränen J. b, Somerharju P. c, Ikonen E. b, Viitala T. d, Olkkonen V.M. a,b
Published in: Biochimie, 2019, Vol. 158, p. 90-101
ORP2 is a sterol-binding protein with documented functions in lipid and glucose metabolism, Akt signaling, steroidogenesis, cell adhesion, migration and proliferation. [...]

Continuous assembly of supramolecular polyamine–phosphate networks on surfaces: preparation and permeability properties of nanofilms

Publication year: 2019
Authors: Agazzi M.L. a, Herrera S.E. a, Cortez M.L. a, Marmisollé W.A. a, von Bilderling C. a,b, Pietrasanta L.I. b,c, Azzaroni O. *a
Published in: Soft Matter, 2019, 15, p. 1640-1650
Supramolecular self-assembly of molecular building blocks represents a powerful “nanoarchitectonic” tool to create new functional materials with molecular-level feature control. Here, we propose [...]

Design and evaluation of a multiplexed angular-scanning surface plasmon resonance system employing line-laser optics and CCD detection in combination with multi-ligand sensor chips

Publication year: 2019
Authors: Lakayan D. a, Tuppurainen J. c, Suutari T.E. a,d, van Iperen D.J. e, Somsen G.W. a, Kool J. a
Published in: Sensors and Actuators B: Chemical, 2019, Vol. 282, p. 243-250
An angle-scanning Kretschmann configuration SPR instrument allowing multiplexed analysis is presented. Laser light was guided through optics that converted the collimated light into a line-shaped beam, which was [...]

The sensitive detection of ODAM by using sandwich-type biosensors with a cognate pair of aptamers for the early diagnosis of periodontal disease

Publication year: 2019
Authors: Lee B.H. 1, Kim S.H. 1, Ko Y. 2, Park J.C. 3, Ji S. 4, Gu M.B. 5
Published in: Biosensors and Bioelectronics, 2019, Vol. 126, p. 122-128
This research aims to develop biosensors which could diagnose periodontal diseases in early phases and predict the illness stage of patients, in order to give them adequate treatment timely. [...]

Lectins at Interfaces—An Atomic Force Microscopy and Multi-Parameter-Surface Plasmon Resonance Study

Publication year: 2018
Authors: Niegelhell K. 1, Ganner T. 2, Plank H. 3, Jantscher-Krenn E. 4, Spirk S. 5
Published in: Materials 2018, Vol. 11(12), p. 2348
Lectins are a diverse class of carbohydrate binding proteins with pivotal roles in cell communication and signaling in many (patho)physiologic processes in the human body, making them promising [...]

Hydrazone crosslinked hyaluronan-based hydrogels for therapeutic delivery of adipose stem cells to treat corneal defects

Publication year: 2018
Authors: Koivusalo L. a, Karvinen J. e, Sorsa E. b, Jönkkäri I. c, Väliaho J. b, Kallio P. b, Ilmarinen T. a, Miettinen S. a, Skottman H. a, Kellomäki M. a, b
Published in: Materials Science and Engineering: C, Vol. 85, 2018, p. 68–78
Corneal blindness is a worldwide problem, plagued by insufficient amount of high-quality donor tissue. Cell therapy using human adipose stem cells (hASCs) has risen as an alternative [...]

Improved glucose label-free biosensor with layer-by-layer architecture and conducting polymer poly(3,4-ethylenedioxythiophene)

Publication year: 2018
Authors: David M. a, b, Barsan M. M. a, Brett M.A.C. a, Florescu M. b
Published in: Sensors and Actuators B, 2018, Vol. 22, Issue 3, p. 3227-3234
Layer-by-layer (LbL) self-assembly has been used for the development of a new glucose label-free biosensor. Glucose oxidase (GOx) was incorporated in a multilayer film on a gold electrode, previously modified [...]

Cyclopropylamine plasma polymer surfaces for label-free SPR and QCM immunosensing of Salmonella

Publication year: 2018
Authors: Makhneva E. a, b, Farka Z. c, Skladal P. c, d, Zajickova L. a,b
Published in: Sensors and Actuators B: Chemical, 2018
We report on the first successful application of nitrogen-containing functional surfaces prepared by plasma polymerization in surface plasmon resonance (SPR) immunosensing. The plasma polymers (PPs) [...]

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 [...]

Interaction of lecithin-cholesterol acyltransferase with lipid surfaces and apolipoprotein A-I derived peptides

Publication year: 2018
Authors: Casteleijn M. G., Parkkila P., Viitala T., Koivuniemi A.
Published in: Journal of Lipid Research, 2018
Lecithin-cholesterol acyltransferase (LCAT) is an enzyme responsible for the formation of cholesteryl esters from unesterified cholesterol (UE) and phospholipid (PL) molecules in high-density lipoprotein (HDL) particles. [...]

Tuning the Stiffness of Surfaces by Assembling Genetically Engineered Polypeptides with Tailored Amino Acid Sequence

Publication year: 2018
Authors: Costa R.R. 1,2, González-Pérez M. 3,4, Herrero-Gutiérrez M. 3,4, Pires R.A. 1,2,5, Alonso M. 3,4, Rodriguez-Cabello J.C. 3,4, Reis R.L. 1,2,5, Pashkuleva I. 1,2
Published in: Biomacromolecules, 2018, Vol. 19(8), p. 3401-3411
We introduce elastin-like recombinamers (ELRs) as polypeptides with precise amino acid positioning to generate polypeptide coatings with tunable rigidity. Two ELRs [...]

Membrane bound COMT isoform is an interfacial enzyme: general mechanism and new drug design paradigm

Publication year: 2018
Authors: Magarkar A. a,b, Parkkila P. a, Viitala T. a, Lajunen T. a, Mobarak E. c,d, Licari G. e, Cramariuc O. c, Vauthey E. e , Rógc T. d, Bunker A.* a
Published in: Chemical Communications, 2018, Vol. 54, Issue 28, p. 3440-3443
The enzyme catechol-O-methyltransferase (COMT) has water soluble (S-COMT) and membrane associated (MB-COMT), bitopic, isoforms. Of these MB-COMT is a drug target [...]

Phage display selection of fully human antibody fragments to inhibit growth-promoting effects of glycine-extended gastrin 17 on human colorectal cancer cells

Publication year: 2018
Authors: Khajeh S .1,2, Tohidkia M.R. 2, Aghanejad A. 2, Mehdipour T. 2, Fathi F. 2, Omidi Y. 2
Published in: Artificial Cells, Nanomedicine and Biotechnology, 2018, Vol. 46
Glycine-extended gastrin 17 (G17-Gly), a dominant processing intermediate of gastrin gene, has been implicated in the development or maintenance of colorectal cancers (CRCs). [...]

Topovectorial mechanisms control the juxtamembrane proteolytic processing of Nrf1 to remove its N-terminal polypeptides during maturation of the CNC-bZIP factor

Publication year: 2018
Authors: Xiang Y. 1, Halin J. 2, Fan Z. 1, Hu S. 1, Wang M. 1, Qiu L. 1, Zhang Z. 3, Mattjus P. 2, Zhang Y. 1
Published in: bioRxiv, 2018
The topobiological behaviour of Nrf1 dictates its post-translational modification and its ability to transactivate target genes. Here, we have elucidated that topovectorial mechanisms control [...]

Angular scanning and variable wavelength surface plasmon resonance allowing free sensor surface selection for optimum material- and bio-sensing

Publication year: 2018
Authors: Lakayan D. a, b, Tuppurainen J. c, d, Albers M. c, d, van Lint M. J. e, van Iperen D. J. f, Weda J. J. A. g, Kuncova-Kallio J. c, d, Somsen G. W. a, Kool J. a
Published in: Sensors and Actuators B: Chemical, Vol. 259, 15, 2018, p. 972–979
A variable-wavelength Kretschmann configuration surface plasmon resonance (SPR) apparatus with angle scanning is presented. The setup provides the possibility of [...]

Volume expansion of erythrocytes is not the only mechanism responsible for the protection by arginine-based surfactants against hypotonic hemolysis

Publication year: 2018
Authors: Fait M.E. 1, Hermet M. 1, Vazquez R. 2, Mate S. 2, Daza Millone M.A. 3, Vela M.E. 4, Morcelle S.R. 5, Bakas L. 6
Published in: Colloids and Surfaces B: Biointerfaces, 2018, Vol. 171, p. 134-141
A novel arginine-based cationic surfactant Nα-benzoyl-arginine dodecylamide (Bz-Arg-NHC12) was synthesized in our laboratory. In this paper we study the interaction of [...]

A facile molecularly imprinted polymer-based fluorometric assay for detection of histamine

Publication year: 2018
Authors: Feng X., Ashley J., Zhou T., Halder A., Sun Y.
Published in: RSC Advances, 2018, Vol. 8, Issue 5, p. 2365
Histamine is a biogenic amine naturally present in many body cells. It is also a contaminant that is mostly found in spoiled food. The consumption of foods containing high levels [...]

Dispersive solid-phase imprinting of proteins for the production of plastic antibodies

Publication year: 2018
Authors: Ashley J., Feng X., Halder A., Zhou T., Sun Y.*
Published in: Chemical Communications, 2018, Vol. 54 (27), p. 3355-3358
We describe a novel dispersive solid-phase imprinting technique for the production of nano-sized molecularly imprinted polymers (nanoMIPs) as plastic antibodies. The template [...]

Urea and creatinine detection on nano-laminated gold thin film using Kretschmann-based surface plasmon resonance biosensor

Publication year: 2018
Authors: Menon P.S., Said F.A., Mei G.S., Berhanuddin D.D., Umar A.A., Shaari S., Majlis B.Y.
Published in: PLoS One, 2018, Vol. 13 (7)
This work investigates the surface plasmon resonance (SPR) response of 50-nm thick nano-laminated gold film using Kretschmann-based biosensing for detection of urea [...]

On the Importance of Controlling Film Architecture in Detecting Prostate Specific Antigen

Publication year: 2018
Authors: Graça J. S. a, Miyazaki C. M. a, Shimizu F. M. b, Volpati D. c, Mejía-Salazar J. R. b, Oliveira O.N. Jr. b, Ferreira M. a
Published in: Applied Surface Science, 2018, Vol. 434, p. 1175-1182
Immunosensors made with nanostructured films are promising for detecting cancer biomarkers, even at early stages of the disease, but this requires control of film architecture to preserve [...]