Effects of cyclonic plasma deposited organosilicon nano‐coating on 316 stainless steel and its surface characterization

Wu, Liushun; Kuo, Yu‐Lin; Chang, Kai-Hsiang; Chen, Ting‐Hao; Cheng, Chou‐Yuan; Liu, Yu-Shuan; Huang, Chun

doi:10.1002/sia.6684

Cited by 7 publications

(4 citation statements)

References 30 publications

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“…From this perspective, plasma discharge glow characteristics could be a good indicator for understanding the creation of tunable nanometer scale surface state on a substrate material from various chemical reactions of plasma polymerization. 24,25 The glow color becomes highly dissimilar when nitrogen gas enters the Ar-only cyclonic APP, as shown in Figure 1B. A noticeable color alteration (purple pink) was observed when nitrogen (N 2 ) gas was added to the Ar plasma system.…”

Section: Methodsmentioning

confidence: 99%

“…Plasma discharges emit a luminous glow reflecting the electron energy level and chemical reaction. From this perspective, plasma discharge glow characteristics could be a good indicator for understanding the creation of tunable nanometer scale surface state on a substrate material from various chemical reactions of plasma polymerization 24,25 . The glow color becomes highly dissimilar when nitrogen gas enters the Ar‐only cyclonic APP, as shown in Figure 1B.…”

Section: Methodsmentioning

confidence: 99%

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Comparative investigation on organosilicon film growth by cyclonic plasma using hexamethyldisilazane and hexamethyldisilazane/nitrogen gas mixture

Wu,

Wang,

et al. 2023

Surface & Interface Analysis

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This study aimed to discover the surface characteristics of cyclonic plasma‐deposited films and the effect of nitrogen gas addition. The influence of nitrogen gas addition on the surface characteristics of organosilicon films in hexamethyldisilazane (HMDSN) and HMDSN/nitrogen (HMDSN/N2) cyclonic plasmas at atmospheric pressure was evaluated. It was found that the addition of nitrogen gas is a crucial factor affecting organosilicon film growth in the plasma cyclone in one atmosphere. SEM, AFM, and ATR‐FTIR results indicated that on adding nitrogen gas, the surface morphology became rougher, the peak corresponding to the Si–O–Si group was detected at approximately 1050 cm−1, the degree of porosity was relatively low, and the proportion of the SiCHx group decreased. In general, the surface energies of the films deposited in the HMDSN discharge and the HMDSN/N2 gas mixture discharge exhibited similar features. SEM and AFM evaluations showed high roughness values of 44.5 nm for the film formation in the HMDSN/N2 gas mixture discharge, while the films grown in the HMDSN discharge exhibited a relatively flat surface with a roughness of 24.5 nm. Based on ATR‐FTIR detection, cyclonic plasma‐deposited films deposited in the HMDSN discharge obtained organic moieties, while the films generated in the HMDSN/N2 gas mixture discharge exhibited strong Si–O–Si absorption signals. A possible nano‐organosilicon film growth that prevails in atmospheric pressure plasma deposition is proposed based on atmospheric‐pressure plasma chemistry, nitrogen gas addition, and experimental observations.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Comparative investigation on organosilicon film growth by cyclonic plasma using hexamethyldisilazane and hexamethyldisilazane/nitrogen gas mixture

Wu,

Wang,

et al. 2023

Surface & Interface Analysis

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“…Where K ads is used for equilibrium adsorption constant, the linear correlation coefficient (0.9992) is almost equal to 1, 8 nm and 999 nm, respectively. The increase in surface roughness after immersion in corrosive media in absence of iron oxide NPs indicated the level of corrosion as the abraded SS-316 L samples surface loses smoothness as a result of corrosion [36]. SS-316 L samples immersed in Ringer's solution containing 100 ppm of iron oxide NPs possessed comparatively lower 523 nm surface roughness as a result of corrosion inhibition by NPs.…”

Section: Adsorption Isotherm Studymentioning

confidence: 99%

Swertia chirata extract mediated synthesis of iron oxide nanoparticles and its use as corrosion inhibitor for stainless steel 316 L in Ringer’s solution

Sharma

Bhardwaj

Kumar

2021

Adv. Nat. Sci: Nanosci. Nanotechnol.

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Artificial biomedical devices are used to replace, repair or improve the functioning of damaged body organs or tissue. Corrosion of the metallic component placed in the human body leads to their failure or improper functioning. This study focuses on the synthesis of iron oxide nanoparticles (NPs) by Swertia chirata extract and its use as a corrosion inhibitor for stainless steel (SS) 316 L in Ringer’s solution. Ringer’s solution mimics isotonic natural body fluids that may lead to corrosion of biomedical implants. UV–vis spectroscopy, SEM, TEM, and XRD were used for the NPs characterisation. The NPs were spherical in shape and 10–20 nm in size. The corrosion inhibition efficiency was measured using gravimetric and electrochemical methods. SEM and AFM analysis confirmed the corrosion preventive effect of iron oxide NPs on the SS-316L surface. Further, a concentration-dependent increase in the inhibition efficiency was observed with maximum 78.37% corrosion inhibition at 100 ppm NPs concentration. Thus, iron oxide NPs can be utilised as a potent anti-corrosive agent which can protect the metal surface from further deterioration in harsh body environments.

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“…In the last decade, the deposition of nanotechnological coatings by cathodic arc physical vapor deposition (PVD) [ 22 ], cyclonic atmospheric pressure plasma [ 23 ], metal injection molding [ 24 ], sol-gel process, dip-coating technique [ 25 ], and plasma-enhanced chemical vapor deposition (PECVD) [ 26 ] gained great importance due to their ability to control metal ions release and enhance hydrophobicity and cleanability. At the same time, the need for new sanitizing treatments able to reduce/inhibit bacterial retention, prevent stainless steel equipment degradation and, in turn, reduce/eliminate food contamination and chemical elements release is also of great relevance [ 3 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Effect of Stainless Steel Surfaces Treated with a Nanotechnological Coating Approved for Food Contact

et al. 2021

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Stainless steel, widely present in the food industry, is frequently exposed to bacterial colonization with possible consequences on consumers’ health. 288 stainless steel disks with different roughness (0.25, 0.5 and 1 μm) were challenged with four Gram-negative (Escherichia coli ATCC 25922, Salmonella typhimurium ATCC 1402, Yersinia enterocolitica ATCC 9610 and Pseudomonas aeruginosa ATCC 27588) and four Gram-positive bacteria (Staphylococcus aureus ATCC 6538, Enterococcus faecalis ATCC 29212, Bacillus cereus ATCC 14579 and Listeria monocytogenes NCTT 10888) and underwent three different sanitizing treatments (UVC, alcohol 70% v/v and Gold lotion). Moreover, the same procedure was carried out onto the same surfaces after a nanotechnological surface coating (nanoXHAM® D). A significant bactericidal effect was exerted by all of the sanitizing treatments against all bacterial strains regardless of roughness and surface coating. The nanoXHAM® D coating itself induced an overall bactericidal effect as well as in synergy with all sanitizing treatments regardless of roughness. Stainless steel surface roughness is poorly correlated with bacterial adhesion and only sanitizing treatments can exert significant bactericidal effects. Most of sanitizing treatments are toxic and corrosive causing the onset of crevices that are able to facilitate bacterial nesting and growth. This nanotechnological coating can reduce surface adhesion with consequent reduction of bacterial adhesion, nesting, and growth.

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Effects of cyclonic plasma deposited organosilicon nano‐coating on 316 stainless steel and its surface characterization

Cited by 7 publications

References 30 publications

Comparative investigation on organosilicon film growth by cyclonic plasma using hexamethyldisilazane and hexamethyldisilazane/nitrogen gas mixture

Comparative investigation on organosilicon film growth by cyclonic plasma using hexamethyldisilazane and hexamethyldisilazane/nitrogen gas mixture

Swertia chirata extract mediated synthesis of iron oxide nanoparticles and its use as corrosion inhibitor for stainless steel 316 L in Ringer’s solution

Antibacterial Effect of Stainless Steel Surfaces Treated with a Nanotechnological Coating Approved for Food Contact

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