Oxygen Plasma for Prevention of Biofilm Formation on Silicone Catheter Surfaces: Influence of Plasma Exposure Time

Dave, Purvi; Balasubramanian, C.; Hans, Sukriti; Patil, Chirayu; Nema, Sudhir Kumar

doi:10.1007/s11090-022-10254-2

Plasma Chem Plasma Process

2022

DOI: 10.1007/s11090-022-10254-2

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Oxygen Plasma for Prevention of Biofilm Formation on Silicone Catheter Surfaces: Influence of Plasma Exposure Time

Purvi Dave

C. Balasubramanian

Sukriti Hans

et al.

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2024

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Cited by 5 publications

References 47 publications

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Influence of RF Power on Wettability, Morphology and Bacterial Adhesion Properties of Oxygen Plasma Treated Silicone Catheter Surfaces

Dave,

Balasubramanian,

Hans

et al. 2023

Plasma Chem Plasma Process

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Catheterized patients often develop a secondary infection in their body due to bacterial adhesion and growth taking place on catheter surfaces. Nanoscale surface modi cation can alter the bacterial adhesion pattern on the catheter surface. In the present work, we have studied the interaction of oxygen plasma with silicone catheter surfaces from the perspective of variance in RF Power to induce physicochemical surface modi cation to reduce bacterial adhesion. Silicone catheter surfaces have been treated in low-pressure CCP-RF (Capacitively Coupled Radio Frequency) oxygen plasma at different RF powers in the range of 25 -150 W. Obtained results convey that with an increase in RF power, the population of atomic oxygen species becomes dominant among other species. Morphological features are found to grow more signi cantly in amplitude as a function of RF power. Substantial oxidation of the silicone surface is observed in the form of a polar component of surface energy. Oxygen plasma-treated catheter surfaces have exhibited a gradual reduction in E-coli bacterial cell adhesion as a function of RF power with a minimum adhesion of £1%. The shelf life of plasma-induced hydrophilicity on the catheter surface has been evaluated under different storage environments like ambient air, water, arti cial urine solution, and modi ed atmosphere packaging. This study concludes that variance in RF power is a major controlling factor for bacterial adhesion on silicone catheter surface due to the evolution of amplitude morphological parameters keeping space morphological parameters nearly unaffected in contrast to earlier reported studies of variance in plasma exposure time [1].

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Influence of RF Power on Wettability, Morphology and Bacterial Adhesion Properties of Oxygen Plasma Treated Silicone Catheter Surfaces

Dave,

Balasubramanian,

Hans

et al. 2023

Plasma Chem Plasma Process

Self Cite

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A manual operated and eco-friendly plasma-assisted polymerization method for enhancing surface weather resistance of insulation

Zhu,

Dai,

Guan

et al. 2024

Applied Surface Science

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Development and characterization of atmospheric pressure gliding Arc plasma jet

Chalise,

Dhungana,

Sharma

et al. 2024

Phys. Scr.

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In this work, we present the development and comprehensive characterization of an atmospheric pressure gliding arc plasma jet (GAPJ) operating in ambient air to generate non-thermal plasma. Through systematic investigation, the relationship between jet length and airflow rate indicates a positive correlation. Electrical and optical techniques are utilized to characterize the discharge, revealing an impact of applied voltage and gas flow rate on discharge parameters. Calculations are made for parameters such as electron density ((0.62−3.44)×1019) m −3, average power dissipation (9.85−40.50) W, and root mean square values of current and voltage. The impacts of applied voltages and gas flow rate on these parameters are also examined. Electron excitation temperature is determined using the Boltzmann plot method, yielding values within the range of (1.36−1.44) eV. Rotational and vibrational temperatures of discharge are analyzed, revealing values of (1373−2065) K and (2700−2405) K, respectively, under different operational conditions. The generated non-thermal plasma is confined to form a plasma plume although it consists of two diverging electrodes and offers promising applications for specified areas of sterilization and decontamination in the medical, pharmaceutical, and food processing industries.

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Oxygen Plasma for Prevention of Biofilm Formation on Silicone Catheter Surfaces: Influence of Plasma Exposure Time

Cited by 5 publications

References 47 publications

Influence of RF Power on Wettability, Morphology and Bacterial Adhesion Properties of Oxygen Plasma Treated Silicone Catheter Surfaces

Influence of RF Power on Wettability, Morphology and Bacterial Adhesion Properties of Oxygen Plasma Treated Silicone Catheter Surfaces

A manual operated and eco-friendly plasma-assisted polymerization method for enhancing surface weather resistance of insulation

Development and characterization of atmospheric pressure gliding Arc plasma jet

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