Extracellular vesicle isolation yields increased by low-temperature gaseous plasma treatment of polypropylene tubes

Resnik, Matic (author), Kovač, Janez (author), Štukelj, Roman (author), Kralj-Iglič, Veronika (author), Humpolíček, Petr (author), Junkar, Ita (author)

Novel Extracellular Vesicles (EVs) based diagnostic techniques are promising non-invasive procedures for early stage disease detection which are gaining importance in the medical field. EVs are cell derived particles found in body liquids, especially blood, from which they are isolated for further analysis. However, techniques for their isolation are not fully standardized and require further improvement. Herein modification of polypropylene (PP) tubes by cold Atmospheric Pressure Plasma Jet (APPJ) is suggested to minimize the EVs to surface binding and thus increase EVs isolation yields. The influence of gaseous plasma treatment on surface morphology was studied by Atomic Force Microscopy (AFM), changes in surface wettability by measuring the Water Contact Angle (WCA), while surface chemical changes were analyzed by X-Ray Photoelectron Spectroscopy (XPS). Moreover, PP tubes from different manufacturers were compared. The final isolation yields of EVs were evaluated by flow cytometry. The results of this study suggest that gaseous plasma treatment is an intriguing technique to uniformly alter surface properties of PP tubes and improve EVs isolation yields up to 42%.

• Language: English
• Keywords: atmospheric pressure plasma jets (APPJs), extracellular vesicles (EVs), nanostructures, polypropylene (PP)
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: ZF - Faculty of Health Sciences
• Publication status: Published
• Publication version: Version of Record
• Year: 2020
• Number of pages: 13 str.
• Numbering: Vol. 12, iss. 10, art. 2363
• PID: 20.500.12556/RUL-134736
• UDC: 533
• ISSN on article: 2073-4360
• DOI: 10.3390/polym12102363
• COBISS.SI-ID: 46629379
• Publication date in RUL: 28.01.2022

Record is a part of a journal

• Title: Polymers
• Shortened title: Polymers
• Publisher: MDPI
• ISSN: 2073-4360
• COBISS.SI-ID: 517951257

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 15.10.2020

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: PR-06154