Data underlying the publication: Microgel-based etalon membranes: characterization and properties

DOI:10.4121/b0a3b4bd-1764-4b2b-9db1-edd2945edb41.v1
The DOI displayed above is for this specific version of this dataset, which is currently the latest. Newer versions may be published in the future. For a link that will always point to the latest version, please use
DOI: 10.4121/b0a3b4bd-1764-4b2b-9db1-edd2945edb41

Datacite citation style

Kontaxi, Georgia; Wensink, Gijs; Sberna, Paolo; Rücker, Maja; Garbin, Valeria et. al. (2025): Data underlying the publication: Microgel-based etalon membranes: characterization and properties. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/b0a3b4bd-1764-4b2b-9db1-edd2945edb41.v1
Other citation styles (APA, Harvard, MLA, Vancouver, Chicago, IEEE) available at Datacite

Dataset

We introduce Microgel-based Etalon Membranes (MEM), based on the combination of stimuli-responsive microgels

with an etalon, which is an optical device consisting of two reflecting plates and is used to filter specific wavelengths

of light. The microgels are sandwiched between two reflective layers and, in response to a stimulus (e.g., temperature,

pH, or biomarker concentration) swell or de-swell, thereby changing the distance between the two reflective layers, and

generating multiple peaks in the reflectance spectra. This property gives a MEM the unique capability of simultaneous

separation and tunable responses to the environmental changes and/or biomarker concentrations. We propose a design

based on gold layers on a silicon nitride wafer membrane. Our comprehensive characterization, employing perme-

ability experiments, in-situ optical reflectance spectroscopy, in-liquid AFM analysis, and captive bubble contact angle

measurements, elucidates the dynamic response of MEM to pH, temperature, and glucose stimuli and the correspond-

ing effect of microgel swelling/de-swelling on the membrane properties, e.g., permeability. The AFM results confirm

the dynamic changes of the microgel layer’s thickness on the membrane surface in response to the stimuli. Although

the microgel’s swelling/deswelling influences the effective pore radius, the decrease in the membrane’s permeance is

limited to less than 10%. In the swollen state of the microgels, the etalon membranes show a prominent hydrophilic

behavior, while they become less hydrophilic in the microgels’ de-swollen state

History

  • 2025-08-11 first online, published, posted

Publisher

4TU.ResearchData

Format

image/jpg, png, tiff ; files/xlsx, txt, opju, spm, ods, wks, cfg, bin

Organizations

TU Delft, Faculty of Applied Sciences, Department of Chemical Engineering

DATA

Files (287)