Björn Agnarsson

Research Specialist at Nano and Biophysics

As a member of Biological Physics, I am involved in the development of new analytical methods and tools for detecting and tracking nanoparticles on surfaces and in bulk (extracellular vesicles, viruses, liposomes and metallic particles). My main research interests include, but are not limited to, micro and nanofabrication, optical sensors, plasmonics and general interdisciplinary work.

Source: chalmers.se

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Publications (34)
Projects (0)

Showing 34 publications

2024

Sub-Nanomolar Detection of Oligonucleotides Using Molecular Beacons Immobilized on Lightguiding Nanowires

Therese B. Johansson, Rubina Davtyan, Julia Valderas-Gutiérrez et al

Nanomaterials. Vol. 14 (5)

Journal article

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2023

Label-free quantification of protein binding to lipid vesicles using transparent waveguide evanescent-field scattering microscopy with liquid control

Mokhtar Mapar, Mattias Sjöberg, Vladimir Zhdanov et al

Biomedical Optics Express. Vol. 14 (8), p. 4003-4016

Journal article

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2023

Pore formation by melittin in porous silica-supported lipid membranes

Nicola Garlet, Björn Agnarsson, Simon Niederkofler et al

European Biophysics Journal. Vol. 52 (Suppl 1), p. S131-S131

Other text in scientific journal

2022

Probing the Separation Distance between Biological Nanoparticles and Cell Membrane Mimics Using Neutron Reflectometry with Sub-Nanometer Accuracy

Antonius Armanious, Yuri Gerelli, Samantha Micciulla et al

Journal of the American Chemical Society. Vol. 144 (45), p. 20726-20738

Journal article

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2021

Fluorescence Signal Enhancement in Antibody Microarrays Using Lightguiding Nanowires

Damiano Verardo, Leena Liljedahl, Corinna Richter et al

Nanomaterials. Vol. 11 (1), p. 1-11

Journal article

2021

Time-Resolved and Label-Free Evanescent Light-Scattering Microscopy for Mass Quantification of Protein Binding to Single Lipid Vesicles

Mattias Sjöberg, Mokhtar Mapar, Antonius Armanious et al

Nano Letters. Vol. 21 (11), p. 4622-4628

Journal article

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2021

Determination of Nanosized Adsorbate Mass in Solution Using Mechanical Resonators: Elimination of the so Far Inseparable Liquid Contribution

Antonius Armanious, Björn Agnarsson, A. Lundgren et al

Journal of Physical Chemistry C. Vol. 125 (41), p. 22733-22746

Journal article

2020

Single-vesicle imaging reveals lipid-selective and stepwise membrane disruption by monomeric α-synuclein

Jonas Hannestad, Sandra Rocha, Björn Agnarsson et al

Proceedings of the National Academy of Sciences of the United States of America. Vol. 117 (25), p. 14178-14186

Journal article

2020

Independent Size and Fluorescence Emission Determination of Individual Biological Nanoparticles Reveals that Lipophilic Dye Incorporation Does Not Scale with Particle Size

Silver Jõemetsa, Paul Joyce, Quentin Lubart et al

Langmuir. Vol. 36 (33), p. 9693-9700

Journal article

2019

Characterization of binding of magnetic nanoparticles to rolling circle amplification products by turn-on magnetic assay

Sobhan Sepehri, Björn Agnarsson, Teresa Zardán Gómez De La Torre et al

Biosensors. Vol. 9 (3)

Journal article

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2019

Quantitative Detection of Biological Nanoparticles in Solution via Their Mediation of Colocalization of Fluorescent Liposomes

Olov Wahlsten, Frida Ulander, Daniel Midtvedt et al

Physical Review Applied. Vol. 12 (6)

Journal article

2019

Single-Molecule Detection with Lightguiding Nanowires: Determination of Protein Concentration and Diffusivity in Supported Lipid Bilayers

Damiano Verardo, Björn Agnarsson, Vladimir Zhdanov et al

Nano Letters. Vol. 19 (9), p. 6182-6191

Journal article

2018

Effective Refractive Index and Lipid Content of Extracellular Vesicles Revealed Using Optical Waveguide Scattering and Fluorescence Microscopy

Deborah Rupert, Mokhtar Mapar, Ganesh V Shelke et al

Langmuir. Vol. 34 (29), p. 8522-8531

Journal article

2018

Affinity Purification and Single-Molecule Analysis of Integral Membrane Proteins from Crude Cell-Membrane Preparations

Anders Lundgren, Björn Johansson Fast, Stephan Block et al

Nano Letters. Vol. 18 (1), p. 381-385

Journal article

2018

Structure and Composition of Native Membrane Derived Polymer-Supported Lipid Bilayers

Hudson Pace, Jonas Hannestad, Antonius Armanious et al

Analytical Chemistry. Vol. 90 (21), p. 13065-13072

Journal article

2018

Toward multiplexed quantification of biomolecules on surfaces using time-of-flight secondary ion mass spectrometry

Louise Wogelred, Fredrik Höök, Björn Agnarsson et al

Biointerphases. Vol. 13 (3)

Journal article

2018

Low-temperature fabrication and characterization of a symmetric hybrid organic–inorganic slab waveguide for evanescent light microscopy

Björn Agnarsson, Mokhtar Mapar, Mattias Sjöberg et al

Nano Futures. Vol. 2 (2)

Journal article

2018

Waveguide structure

Björn Agnarsson, Anders Lundgren, Fredrik Höök et al

Patent

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2018

Spatiotemporal Kinetics of Supported Lipid Bilayer Formation on Glass via Vesicle Adsorption and Rupture

Mokhtar Mapar, Silver Jõemetsa, Hudson Pace et al

Journal of Physical Chemistry Letters. Vol. 9 (17), p. 5143-5149

Journal article

2016

Kinetics of enzyme-mediated hydrolysis of lipid vesicles

Vladimir Zhdanov, Björn Agnarsson, Fredrik Höök

Chemical Physics Letters. Vol. 663, p. 51-56

Journal article

2016

Monitoring of single and double lipid membrane formation with high spatiotemporal resolution using evanescent light scattering microscopy

Björn Agnarsson, H.K. Wayment-Steele, Fredrik Höök et al

Nanoscale. Vol. 8 (46), p. 19219-19223

Journal article

2016

Nonspecific Colloidal-Type Interaction Explains Size-Dependent Specific Binding of Membrane-Targeted Nanoparticles

Anders Lundgren, Björn Agnarsson, R. Zirbs et al

ACS Nano. Vol. 10 (11), p. 9974-9982

Journal article

2016

Effects of Al3+ on Phosphocholine and Phosphoglycerol Containing Solid Supported Lipid Bilayers

H. K. Wayment-Steele, Yujia Jing, M. J. Swann et al

Langmuir. Vol. 32 (7), p. 1771-1781

Journal article

2015

Evanescent Light-Scattering Microscopy for Label-Free Interfacial Imaging: From Single Sub-100 nm Vesicles to Live Cells

Björn Agnarsson, Anders Lundgren, Anders Gunnarsson et al

ACS Nano. Vol. 9 (12), p. 11849-11862

Journal article

2014

Optical waveguide-based single-molecule studies for medical diagnostics and drug screening applications

Björn Agnarsson, Fredrik Höök

Latin America Optics and Photonics Conference, LAOP 2014, Cancun, Mexico, 16-21 November 2014

Paper in proceeding

2014

Site-dependent charge transfer at the Pt(111)-ZnPc interface and the effect of iodine

S. Ahmadi, Björn Agnarsson, I. Bidermane et al

Journal of Chemical Physics. Vol. 140 (17)

Journal article

2014

Liposome binding for multiplexed biomolecule detection and imaging using ToF-SIMS

Peter Sjövall, Björn Agnarsson, Louise M Carlred et al

Surface and Interface Analysis. Vol. 46 (10-11), p. 707-711

Journal article

2013

Photoemission and low energy electron microscopy study on the formation and nitridation of indium droplets on Si (111)7 x 7 surfaces

B. Qi, S. Olafsson, M. Gothelid et al

Thin Solid Films. Vol. 531, p. 61-69

Journal article

2013

Rutile TiO2 thin films grown by reactive high power impulse magnetron sputtering

Björn Agnarsson, Fridrik Magnus, T. K. Tryggvason et al

Thin Solid Films. Vol. 545, p. 445-450

Journal article

2013

Ultra-thin gold films on transparent polymers

K. Leosson, A. S. Ingason, Björn Agnarsson et al

Nanophotonics. Vol. 2 (1), p. 3-11

Journal article

2013

Study of spatial homogeneity and nitridation of an Al nanopattern template with spectroscopic photoemission and low energy electron microscopy

B. Qi, S. Olafsson, A. A. Zakharov et al

Applied Surface Science. Vol. 264, p. 349-357

Journal article

2012

Integrated Biophotonics with CYTOP

K. Leosson, Björn Agnarsson

Micromachines. Vol. 3 (1), p. 114-125

Journal article

2012

A micro-spectroscopy study on the influence of chemical residues from nanofabrication on the nitridation chemistry of Al nanopatterns

B. Qi, S. Olafsson, A. A. Zakharov et al

Applied Surface Science. Vol. 258 (10), p. 4497-4506

Journal article

2012

Comparing resonant photon tunneling via cavity modes and Tamm plasmon polariton modes in metal-coated Bragg mirrors

K. Leosson, S. Shayestehaminzadeh, T. K. Tryggvason et al

Optics Letters. Vol. 37 (19), p. 4026-4028

Journal article

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