Publications

Below are relevant publications sorted after the date they were published. If you prefer them sorted by the application area they are describing, they are also available in each of the application areas.

Cholesterol affects the interaction between an ionic liquid and phospholipid vesicles. A study by differential scanning calorimetry and nanoplasmonic sensing

10 Sep 2017

The present work aims at studying the interactions between cholesterol-rich phosphatidylcholine-based lipid vesicles and trioctylmethylphosphonium acetate ([P8881][OAc]), a biomass dissolving ionic liquid (IL). The effect of cholesterol was assayed…

Gold nanoparticle-based localized surface plasmon immunosensor for staphylococcal enterotoxin A (SEA) detection

16 Aug 2017

We describe the engineering of stable gold nanoparticle (AuNP) bioconjugates for the detection of staphylococcal enterotoxin A (SEA) using localized surface plasmon resonance (LSPR). Two types of AuNP bioconjugates were…

Probing the Interaction of Dielectric Nanoparticles with Supported Lipid Membrane Coatings on Nanoplasmonic Arrays

23 Jun 2017

The integration of supported lipid membranes with surface-based nanoplasmonic arrays provides a powerful sensing approach to investigate biointerfacial phenomena at membrane interfaces. While a growing number of lipid vesicles, protein,…

Fabrication and Characterization of Plasmonic Nanopores with Cavities in the Solid Support

20 Jun 2017

Plasmonic nanostructures are widely used for various sensing applications by monitoring changes in refractive index through optical spectroscopy or as substrates for surface enhanced Raman spectroscopy. However, in most practical…

Nanoplasmonic Sensing at the Carbon-Bio Interface: Study of Protein Adsorption at Graphitic and Hydrogenated Carbon Surfaces

11 Apr 2017

Various forms of carbon are known to perform well as biomaterials in a variety of applications and an improved understanding of their interactions with biomolecules, cells, and tissues is…

Nanoplasmonic sensors for biointerfacial science

06 Apr 2017

In recent years, nanoplasmonic sensors have become widely used for the label-free detection of biomolecules across medical, biotechnology, and environmental science applications. To date, many nanoplasmonic sensing strategies have been…

Real-time in situ analysis of biocorona formation and evolution on silica nanoparticles in defined and complex biological environments

23 Feb 2017

Biomolecules such as proteins immediately adsorb on the surface of nanoparticles upon their exposure to a biological environment. The formed adlayer is commonly referred to as biomolecule corona (biocorona) and…

A fullerene alloy based photovoltaic blend with a glass transition temperature above 200 °C

06 Feb 2017

Organic solar cells with a high degree of thermal stability require bulk-heterojunction blends that feature a high glass transition, which must occur considerably above the temperatures encountered during device fabrication…

Generation of anti-inflammatory macrophages for implants and regenerative medicine using self-standing release systems with a phenotype-fixing cytokine cocktail formulation

01 Feb 2017

The immediate tissue microenvironment of implanted biomedical devices and engineered tissues is highly influential on their long term fate and efficacy. The creation of a long-term anti-inflammatory microenvironment around implants…

Plasmonic Nanospectroscopy for Thermal Analysis of Organic Semiconductor Thin Films

23 Jan 2017

Organic semiconductors are key materials for the next generation of thin film electronic devices like field-effect transistors, light-emitting diodes and solar cells. Accurate thermal analysis is essential for the fundamental…

Unraveling interactions between ionic liquids and phospholipid vesicles using nanoplasmonic sensing

09 Jan 2017

Owing to their unique properties and unlimited structural combinations, the ubiquitous use of ionic liquids (ILs) is steadily increasing. The objective of the present work is to shed light into…

Quantitative Profiling of Nanoscale Liposome Deformation by a Localized Surface Plasmon Resonance Sensor

16 Dec 2016

Characterizing the shape of sub-100 nm, biological soft-matter particulates (e.g., liposomes and exosomes) adsorbed at a solid-liquid interface remains a challenging task. Here, we introduce a localized surface plasmon resonance…

Investigating How Vesicle Size Influences Vesicle Adsorption on Titanium Oxide: A Competition between Steric Packing and Shape Deformation

08 Dec 2016

Understanding the adsorption behavior of lipid vesicles at solid-liquid interfaces is important for obtaining fundamental insights into soft matter adsorbates as well as for practical applications such as supported lipid…

Integration of Quartz Crystal Microbalance-Dissipation and Reflection-Mode Localized Surface Plasmon Resonance Sensors for Biomacromolecular Interaction Analysis

25 Nov 2016

The combination of label-free, surface-sensitive measurement techniques based on different physical principles enables detailed characterization of biomacromolecular interactions at solid-liquid interfaces. To date, most combined measurement systems have involved experimental…

Peptide Functionalized Gold Nanoparticles with Optimized Particle Size and Concentration for Colorimetric Assay Development: Detection of Cardiac Troponin I

10 Nov 2016

Peptide-functionalized gold nanoparticles (AuNPs) are extensively utilized in colorimetric assays for rapid and sensitive detection of various biomedical and environmental targets. Although extensively used as colorimetric reporting systems, the…

Role of ZnO and CeOx in Cu-Based Model Catalysts in Activation of H2O and CO2 Dynamics Studied by in Situ Ultraviolet–Visible and X-ray Photoelectron Spectroscopy

17 Oct 2016

Flat model and powder Cu, ZnO/Cu, and CeOx/Cu catalysts were studied by focusing on the role of the oxide phase as a promoter in the water gas shift (WGS)…

Kinetic discrimination of DNA single-base mutations by localized surface plasmon resonance

14 Oct 2016

Clinical application of DNA microarrays used for screening of single nucleotide polymorphisms (SNPs) are very important for diagnosis of diseases and appropriate treatment of patients. In this paper localized surface…

Influence of Divalent Cations on Deformation and Rupture of Adsorbed Lipid Vesicles

16 May 2016

The fate of adsorbed lipid vesicles on solid supports depends on numerous experimental parameters and typically results in the formation of a supported lipid bilayer (SLB) or an adsorbed vesicle…

Core–Shell Nanoplasmonic Sensing for Characterization of Biocorona Formation and Nanoparticle Surface Interactions

16 May 2016

Surface properties of nanoparticles imposed by particle size, shape, and surface chemistry are key features that largely determine their environmental fate and effects on biological systems. Consequently, development of…

Plasmonic Nanospectroscopy of Platinum Catalyst Nanoparticle Sintering in a Mesoporous Alumina Support

09 May 2016

In situ plasmonic nanospectroscopy has proven useful to bridge the pressure gap in heterogeneous catalysis. The method has, however, so far been used only for idealized two-dimensional systems without the…

Cu Model Catalyst Dynamics and CO Oxidation Kinetics Studied by Simultaneous in Situ UV–Vis and Mass Spectroscopy

14 Mar 2016

The oxidation state of Cu nanoparticles during CO oxidation…

Graphene Oxide and Lipid Membranes: Size-Dependent Interactions

07 Mar 2016

We have investigated the interaction of graphene oxide (GO) sheets with supported lipid membranes with focus on how the interaction depends on GO sheet size (three samples in the range…

Surface-Anchored Metal-Organic Frameworks – SURMOFs: A New Material Platform for Sensors

09 Dec 2015

The application of surface-anchored metal-organic frameworks (SURMOFs) as highly porous host materials for molecules in the field of nanoplasmonic sensing (NPS) is reported. SURMOFs are grown by a layer-bylayer procedure…

Plasmonic Nanohole Sensor for Capturing Single Virus-Like Particles toward Virucidal Drug Evaluation.

09 Oct 2015

A plasmonic nanohole sensor for virus-like particle capture and virucidal drug evaluation is reported. Using a materials-selective surface functionalization scheme, passive immobilization of virus-like particles only within the nanoholes is…

Nanoplasmonic ruler to measure lipid vesicle deformation

01 Oct 2015

A nanoplasmonic ruler method is presented in order to measure the deformation of adsorbed, nm-scale lipid vesicles on solid supports. It is…

UV-vis and Plasmonic Nano-Spectroscopy of the CO2 Adsorption Energetics in Microporous Polymers

28 Sep 2015

In the context of Carbon Capture and Storage (CCS), micro- and mesoporous polymers have received significant attention due…

Reduction of Cu-Promoted Fe Model Catalysts Studied by In Situ Indirect Nanoplasmonic Sensing and X-ray Photoelectron Spectroscopy

23 Jan 2015

The reduction of Cu-promoted Fe model catalysts was investigated…

Contribution of Temperature to Deformation of Adsorbed Vesicles Studied by Nanoplasmonic Biosensing

20 Jan 2015

With increasing temperature, biological macromolecules and nanometer-sized aggregates typically…

Unravelling the Dependence of Hydrogen Oxidation Kinetics on the Size of Pt Nanoparticles by in Operando Nanoplasmonic Temperature Sensing

05 Dec 2014

We use a noninvasive nanoscale optical-temperature measurement method based on localized surface plasmon resonance to investigate the particle size-dependence of the hydrogen oxidation reaction kinetics on model supported Pt nanocatalysts…

In situ Plasmonic Sensing of Platinum Model Catalyst Sintering on Different Oxide Supports and in O2 and NO2 Atmospheres with Different Concentrations

01 Dec 2014

Improved understanding of thermal deactivation processes of supported nanoparticles via sintering is needed in order to increase the lifetime of catalysts. To monitor sintering processes under industrially relevant application conditions,…

Controlling Lipid Membrane Architecture for Tunable Nanoplasmonic Biosensing

30 Jul 2014

Tunable nanoplasmonic biosensing for lipid and protein applications is reported based on controlling lipid membrane architecture on surfaces. The interaction of a peptide with lipid membranes is highly sensitive to…

Nanoplasmonic Biosensing for Soft Matter Adsorption: Kinetics of Lipid Vesicle Attachment and Shape Deformation

04 Jul 2014

An indirect nanoplasmonic sensing platform is reported for investigating the kinetics of attachment and shape deformation associated with lipid vesicle adsorption onto a titanium oxide-coated substrate. The localized surface plasmon…

Thermodynamics of hydride formation and decomposition in supported sub-10 nm Pd nanoparticles of different sizes

30 May 2014

Hydrogen storage properties of supported Pd nanoparticles with average sizes in the range 2.7–7.6 nm were studied using indirect nanoplasmonic sensing. For each particle size, a series of isotherms was…

Real Time Adsorption and Desorption Kinetics of Dye Z907 on a Flat Mimic of Dye-Sensitized Solar Cell TiO2 Photoelectrodes

12 May 2014

A dye molecule monolayer formed on a TiO2 surface is a key component in Dye Sensitized Solar Cells. It is usually formed by adsorbing dye molecules from a solution. The…

Diffusion and Adsorption of Dye Molecules in Mesoporous TiO2 Photoelectrodes Studied by Indirect Nanoplasmonic Sensing

19 Aug 2013

In this study, we used Hidden Interface-Indirect Nanoplasmonic Sensing (HI-INPS) for real time monitoring of dye impregnation (adsorption–diffusion process) of mesoporous TiO2 electrodes of the kind used in dye-sensitized solar…

Nanoplasmonic Sensing for Monitoring the Initial Stages of Atmospheric Corrosion of Cu Nanodisks and Thin Films

16 Aug 2013

Nanoplasmonic sensing as a powerful experimental technique for corrosion kinetics monitoring is demonstrated. Its versatility is illustrated by studies of initial corrosion carried out on model systems consisting of copper…

Localized Surface Plasmon Resonance Investigations of Photoswitching in Azobenzene-Functionalized Self-Assembled Monolayers on Au

02 Aug 2013

Localized plasmon resonance (LSPR) spectroscopy, employing gold nanodisk substrates, is applied for studies of photoswitching in self-assembled monolayers of azobenzene-containing thiols. By choosing customized samples in which the sharp LSPR…

Combined in Situ Quartz Crystal Microbalance with Dissipation Monitoring, Indirect Nanoplasmonic Sensing, and Vibrational Sum Frequency Spectroscopic Monitoring of Alkanethiol-Protected Copper Corrosion

28 May 2013

In this study, we have applied three techniques to…

Nanoplasmonic Sensing for Nanomaterials Science

06 Dec 2012

Nanoplasmonic sensing has over the last two decades emerged as and diversified into a very promising experimental platform technology for studies of biomolecular interactions and for biomolecule detection (biosensors). Inspired…

Nanoplasmonic in situ Spectroscopy for Catalysis Applications

17 Aug 2012

Nanoplasmonic sensing in general and indirect nanoplasmonic sensing (INPS) in particular constitute a versatile and promising experimental strategy for real time in situ spectroscopy of catalyst materials at the ensemble…

Time-Resolved Indirect Nanoplasmonic Sensing Spectroscopy of Dye Molecule Interactions with Dense and Mesoporous TiO2 Films

09 Apr 2012

Indirect nanoplasmonic sensing (INPS) is an experimental platform exploiting localized surface plasmon resonance (LSPR) detection of processes in nanomaterials, molecular assemblies, and films at the nanoscale. Here we have for…

Real Time Indirect Nanoplasmonic in situ Spectroscopy of Catalyst Nanoparticle Sintering

03 Jan 2012

Catalyst deactivation by sintering significantly reduces productivity and energy efficiency of the chemical industry, and the effectiveness of environmental cleanup processes. It also hampers the introduction of novel energy conversion…

Hydride Formation in Single Palladium and Magnesium Nanoparticles Studied By Nanoplasmonic Dark-Field Scattering Spectroscopy

05 Sep 2011

Scrutinizing functional nanosystems and relating details in their size, chemistry, and geometry to functionality remains a significant experimental challenge. Following the concept of indirect nanoplasmonic sensing (INPS), the exploitation of…

Gold, Platinum, and Aluminum Nanodisk Plasmons: Material Independence, Subradiance, and Damping Mechanisms

25 Mar 2011

Localized surface plasmon resonances (LSPR) are collective electronic excitations in metallic nanoparticles. The LSPR spectral peak position, as a function of nanoparticle size and material, is known to depend primarily…

Nanoplasmonic sensing and QCM-D as ultrasensitive complementary techniques for kinetic corrosion studies of aluminum nanoparticles

15 Jan 2011

Corrosion (oxidation) kinetics of Al nanodisks, 262 nm in diameter and 20 nm in height, was measured in degassed Milli-Q water at 23 °C and neutral pH by quartz crystal…

Localized Surface Plasmons Shed Light on Nanoscale Metal Hydrides

23 Aug 2010

Nanometer-sized hydrides are attractive for hydrogen storage. Nanofabricated model systems can be studied by a novel localized surface plasmon resonance (LSPR) based direct sensing approach and by quartz crystal microbalance.

Indirect Nanoplasmonic Sensing: Ultrasensitive Experimental Platform for Nanomaterials Science and Optical Nanocalorimetry

18 Aug 2010

Indirect nanoplasmonic sensing is a novel experimental platform for measurements of thermodynamics and kinetics in/on nanomaterials and thin films. It features simple experimental setup, high sensitivity, small sample amounts, high…

Size-Dependent Kinetics of Hydriding and Dehydriding of Pd Nanoparticles

31 Mar 2010

Using a new indirect nanoplasmonic sensing method with subsecond resolution, we have studied hydriding and dehydriding kinetics of Pd nanoparticles in the size range 1.8–5.4 nm. Strong particle-size effects are…

Size-dependent hysteresis in the formation and decomposition of hydride in metal nanoparticles

04 Feb 2010

Using a novel indirect nanoplasmonic sensing platform, we have measured hydrogen absorption/desorption isotherms in Pd nanoparticles with an average diameter from 1.8 to 8 nm at 30 °C. The isotherms…

A combined nanoplasmonic and electrodeless quartz crystal microbalance setup

07 Dec 2009

We have developed an instrument combining localized surface plasmon resonance (LSPR) sensing with electrodeless quartz crystal microbalance with dissipation monitoring (QCM-D). The two techniques can be run simultaneously, on the…

Nanoplasmonic Probes of Catalytic Reactions

22 Oct 2009

Optical probes of heterogeneous catalytic reactions can be valuable tools for optimization and process control because they can operate under realistic conditions, but often probes lack sensitivity. We have developed…

Hole-Mask Colloidal Lithography

29 Nov 2007

Hole-mask colloidal lithography (HCL) represents a truly versatile and simple bottom-up nanofabrication method based on colloidal self-assembly lithographic patterning. The HCL technique provides an effective means of patterning vast surface…

Hydrogen Storage in Pd Nanodisks Characterized with a Novel Nanoplasmonic Sensing Scheme

13 Sep 2007

A novel nanoplasmonic sensing scheme is introduced based on remote real-time detection of induced electronic and shape/structural changes in a metal nanoparticle during the metal−hydride formation process. The localized surface…

Absorption and scattering of light by Pt, Pd, Ag, and Au nanodisks: Absolute cross sections and branching ratios

15 May 2007

Localized surface plasmons (LSPs) of metallic nanoparticles decay either radiatively or via an electron-hole pair cascade. In this work, the authors have experimentally and theoretically explored the branching ratio of…

Sensing Characteristics of NIR Localized Surface Plasmon Resonances in Gold Nanorings for Application as Ultrasensitive Biosensors

13 Apr 2007

The optical responses of 75−150 nm diameter gold nanorings to changes in local refractive index have been quantified by near-infrared extinction spectroscopy and compared to DDA calculations and an analytical…