Example of characterization by X-ray photoemission spectroscopy (XPS) of a polymer sample. Changes in the line shape of the C1s and O1s core levels, induced by functionalization by plasma treatment, are evident. Analysis of these measurements makes it possible to chemically characterize the functionalized surfaces, evaluate the effectiveness of the treatment, and study aging processes.

CONTACT:
Valentina De Renzi     (valentina.derenzi@unimore.it)

Areas of Interest: SURFACE TREATMENTS; BIOMEDICAL AREA

TECHNOLOGICAL ACTIVITY OFFERED
The SESAMO 2 laboratory has equipment that allows the study of the surface chemical properties of different types of materials of technological interest; its researchers are expert in using the XPS technique to quantitatively characterize different types of surface treatments.
– As an example, it is possible to characterize the effectiveness of plasma treatments or chemical functionalizations of polymeric membranes (nonwovens), with interesting applications in the biomedical field (blood filters, etc.).

DESCRIPTION OF RELATED RESEARCH
Study of the effectiveness of surface functionalizations, aimed at modulating surface wettability, anti-fouling properties, etc. Study of aging processes of treatments.
Spectroscopic characterization can be combined with wettability (contact angle) measurements, which can also be extended to the microscale, using the ESEM microscope.

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