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pH-Controlled Liposomes for Enhanced Cell Penetration in Tumor Environment

Publication year: 2018
Authors: Barattin M. 1, Mattarei A. 2, Balasso A. 1, Paradisi C. 2, Cantù L. 3, Del Favero E. 3, Viitala T. 4, Mastrotto F. 1, Caliceti P. 1, Salmaso S. 1
Published in: ACS Applied Materials & Interfaces, 2018, Vol. 10 (21), p. 17646–17661
An innovative pH-switchable colloidal system that can be exploited for site-selective anticancer drug delivery has been generated by liposome decoration with a new novel synthetic non-peptidic [...]

Biophysical Characterization of Supported Lipid Bilayers Using Parallel Dual-Wavelength Surface Plasmon Resonance and Quartz Crystal Microbalance Measurements

Publication year: 2018
Authors: Parkkila P. 1, Elderfi M. 2, Bunker A. 1, Viitala T. 1
Published in: Langmuir, 2018, Vol. 34 (27), p. 8081-8091
Supported lipid bilayers (SLBs) have been used extensively as an effective model of biological membranes, in the context of in vitro biophysics research, and the membranes of liposomes, [...]

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 [...]

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). [...]

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 [...]

Advancing Peptide-Based Biorecognition Elements for Biosensors Using In-Silico Evolution

Publication year: 2018
Authors: Xiao X. 1, Kuang Z. 2, Slocik J.M. 2, Tadepalli S. 4, Brothers M. 3, Kim S. 3, Mirau P.A. 2, Butkus C. 2, Farmer B.L. 2, Singamaneni S. 4, Hall C.K. 1, Naik R.R. 3
Published in: ACS Sensors, 2018, Vol. 3, Issue 5, p. 1024–1031
Sensors for human health and performance monitoring require biological recognition elements (BREs) at device interfaces for the detection of key molecular biomarkers that are measurable biological state indicators. [...]

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 [...]

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 [...]

Target-triggering multiple-cycle signal amplification strategy for ultrasensitive detection of DNA based on QCM and SPR

Publication year: 2018
Authors: Song W. 1, Guo X. 1, Sun W. 2, Yin W. 1, He P. 1, Yang X. 1, Zhang X. 3
Published in: Analytical Biochemisry, 2018, p. 57-61
Detection of ultralow concentrations of nucleic acid sequences is a central challenge in the early diagnosis of genetic diseases. Herein, we developed a target-triggering cascade multiple cycle amplification for ultrasensitive DNA detection using [...]

High-generation amphiphilic Janus-dendrimers as stabilizing agents for drug suspensions

Publication year: 2018
Authors: Selin M. 1, Nummelin S. 2, Deleu J. 1,3, Ropponen J. 4, Viitala T. 5, Lahtinen M. 6, Koivisto J. 7, Hirvonen J. 1, Peltonen L. 1, Kostinainen M.A. 2,8, Bimbo L.M. 1,9
Published in: Biomacromolecules, 2018, Vol. 19 (10), p. 3983–3993
Pharmaceutical nanosuspensions are formed when drug crystals are suspended in aqueous media in the presence of stabilizers. This technology offers a convenient way to enhance [...]

Spin coated chitin films for biosensors and its analysis are dependent on chitin-surface interactions

Publication year: 2018
Authors: Casteleijn M. G. a, Richardson D. a, Parkkila P. a, Granqvist N. b, Urtti A. a, c, Viitala T. a
Published in: Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018, Vol. 539, p. 261-272
Chitin, abundant in nature, is a renewable resource with many possible applications in bioengineering. Biosensors, capable of label-free and in-line evaluation, play an important role in the investigation of [...]

Cascading reaction of arginase and urease on a graphene-based FET for ultrasensitive, real-time detection of arginine

Publication year: 2018
Authors: Berninger T. a, Bliem C. a, Piccinini E. b, Azzaroni O. b, Knoll W. a
Published in: Biosensors and Bioelectronics, 2018, Vol. 115, p. 104-110
Herein, a biosensor based on a reduced graphene oxide field effect transistor (rGO-FET) functionalized with the cascading enzymes arginase and urease was developed for the detection of L-arginine. Arginase [...]

Phase-segregated Membrane Model assessed by a combined SPR-AFM Approach

Publication year: 2018
Authors: Millone D.A.M. 1, Vázquez R.F. 1, Maté S.M. 2, Vela M.E. 3
Published in: Colloids and Surfaces B: Biointerfaces, 2018, Vol. 172, p. 423-429
Model biomembranes can provide valuable insights into the properties of complex biological membranes. Among several techniques, Surface Plasmon Resonance (SPR) provides [...]

Label-free biosensors in the field of stem cell biology

Publication year: 2018
Authors: Fathi F. a, Rahbarghazi R. b, c, Rashidi M.-R. a, d
Published in: Biosensors and Bioelectronics, 2018, Vol. 101, p. 188-198
A great body of evidence unveiled the existence of different stem cell types in various tissues with efficient capability for self-renewal and differentiation. Characterization and enumeration [...]

Characterization of membrane–foulant interactions with novel combination of Raman spectroscopy, surface plasmon resonance and molecular dynamics simulation

Publication year: 2018
Authors: Virtanen T. a, Parkkila P. b, Koivuniemi A. b, Lahti J. a, Viitala T. b, Kallioinen M. a, Mänttäri M. a, Bunker A. b
Published in: Separation and Purification Technology, 2018, Vol. 5, p. 263-272
Adsorptive fouling, by phenolic compounds, is a serious issue regarding the development and use of membrane based filtration technologies for water [...]

Molecular Details of Retinal Guanylyl Cyclase 1/GCAP-2 Interaction

Publication year: 2018
Authors: Rehkamp A. 1, Tänzler D. 1, Iacobucci C. 1, Golbik R.P. 2, Ihling C.H. 1, Sinz A. 1
Published in: Frontiers in Molecular Neuroscience, 2018, Vol. 11
The rod outer segment guanylyl cyclase 1 (ROS-GC1) is an essential component of photo-transduction in the retina. In the light-induced signal cascade, membrane-bound ROS-GC1 restores cGMP levels [...]

Kinetic and thermodynamic studies of bovine serum albumin interaction with ascorbyl palmitate and ascorbyl stearate food additives using surface plasmon resonance

Publication year: 2018
Authors: Fathi F. a, Mohammadzadeh-Aghdash H. b, c, Sohrabi Y. b, c, Dehghan P. b, Ezzati J. N. D. a
Published in: Food Chemistry, 2018, Vol. 246, p.228-232
Ascorbyl palmitate (AP) and ascorbyl stearate (AS) are examples of food additives, which have extensive use in food industry. In this study, we evaluated the interaction of bovine serum albumin (BSA) with [...]

Affinity maturation and characterization of the ofatumumab monoclonal antibody

Publication year: 2018
Authors: Payandeh Z. 1, Rajabibazl M. 2,3, Mortazavi Y. 1,4, Rahimpour A. 3, Taromchi A.H. 1,4, Dastmalchi S. 5,6
Published in: Journal of Cellular Biochemistry, 2018
CD20 molecule, a phosphoprotein with 297 amino acids and four transmembrane domains, is a member of MS4A protein family. Anti-CD20 antibodies such as ofatumumab, which have been developed [...]

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) [...]

Characterization of G4 PAMAM dendrimer complexes with 5-fluorouracil and their interactions with bovine serum albumin

Publication year: 2018
Authors: Tokarczyk K., Jachimska B.
Published in: Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018, Vol. 561, p. 357-363
The success of novel therapeutic strategies relies strongly on the development of a reliable active agent delivery mechanism. In this work, we address he question of how G4 PAMAM dendrimers [...]