Plasma initiated graft polymerization of 2-methacryloyloxyethyl phosphorylcholine on silicone elastomer surfaces to enhance bio(hemo)compatibility

Lin, Shih‐Yin; Parasuraman, Vijaya Rohini; Mekuria, Shewaye Lakew; Peng, Sydney; Tsai, Hsieh‐Chih; Hsiue, Ging‐Ho

doi:10.1016/j.surfcoat.2017.02.039

Cited by 24 publications

(7 citation statements)

References 37 publications

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“…e size of the area is used to determine the effect of collision with the ground, as shown in Figure 5. By adding different types of bounding boxes to the model, different degrees of collision detection can be achieved [33]. When implementing the scene roaming function, the firstperson view object adds the SphereCollider bounding box, which can realize the collision effect with the ground, thereby avoiding "passing through the ground" [34].…”

Section: Analysis Of Virtual Reality Roaming Functionmentioning

confidence: 99%

Immersive 5G Virtual Reality Visualization Display System Based on Big-Data Digital City Technology

Tian

2021

Mathematical Problems in Engineering

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The virtual reality visual display system creates a realistic virtual product display system, allowing users to swim in a three-dimensional virtual environment and perform interactive operations, fully simulating the process of shopping selection and payment in reality, so that users have an immersive feeling. The purpose of this article is to realize the design of an immersive 5G virtual reality visual display system through big-data digital city technology. This paper uses big-data digital city technology to design and implement an immersive virtual reality visualization system from the three-dimensional display mode of vision, hearing, and touch, creating a real and interactive three-dimensional visualization environment for users to have a more intuitive visual experience. The experimental results of this paper show that the smoothness of the virtual reality visualization system test can reach 60FPS, the excellent rate reaches nearly 33%, and the model scene-realistic feedback excellent rate is about 62.5%.

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Section: Analysis Of Virtual Reality Roaming Functionmentioning

confidence: 99%

Immersive 5G Virtual Reality Visualization Display System Based on Big-Data Digital City Technology

Tian

2021

Mathematical Problems in Engineering

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“…It seemed that the MPC-tethered PEGDMA with a higher P/C ratio (0.071) was more effective for the prevention of bacterial attachment compared to the MPCgrafted PUA with a lower P/C ratio (0.05) (Tables S1 and S2). 32 This result indicates that the antifouling performance could be amplified by integrating the PEGDMA and MPC into the hybrid configuration. Figure 3a-iii shows fluorescence images of E. coli cultured on the PUA and PEGDMA NN array.…”

mentioning

confidence: 95%

Lipid-Hydrogel-Nanostructure Hybrids as Robust Biofilm-Resistant Polymeric Materials

et al. 2018

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Despite extensive efforts toward developing antibiofilm materials, efficient prevention of biofilm formation remains challenging. Approaches based on a single strategy using either bactericidal material, antifouling coatings, or nanopatterning have shown limited performance in the prevention of biofilm formation. This study presents a hybrid strategy based on a lipid-hydrogel-nanotopography hybrid for the development of a highly efficient and durable biofilm-resistant material. The hybrid material consists of nanostructured antifouling, biocompatible polyethylene glycol-based polymer grafted with an antifouling zwitterionic polymer of 2-methacryloyloxyethyl phosphorylcholine. Based on the unique composite nanostructures, the lipid-hydrogel-nanostructure hybrid exhibits superior dual functionalities of antifouling and bactericidal activities against Gram-negative and Gram-positive bacteria, compared with those of surfaces with simple nanostructures or antifouling coatings. Additionally, it preserves the robust antibiofilm activity even when the material is damaged under external mechanical stimuli thanks to the polymeric composite nanostructure.

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“…Bovine serum albumin (BSA) was used to evaluate protein adsorption of each samples. The method described in literature [ 17 ] is as follows: first, PMMA samples were soaked in a phosphate buffer saline (PBS) solution containing 0.2 mg/mL BSA at room temperature for 24 hours. Then each sample was rinsed in pure PBS solution using an orbital table shaker at 150 rpm for 50 minute to remove adsorbed proteins from sample surface.…”

Section: Methodsmentioning

confidence: 99%

Plasma treatment of polymethyl methacrylate to improve surface hydrophilicity and antifouling performance

Sui

Shen

et al. 2020

Polymer Engineering & Sci

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Surface modification of polymethyl methacrylate (PMMA) by O2/CF4 plasma is investigated to improve hydrophilicity and antifouling performance of PMMA. The PMMA surface before and after treatment is characterized by atomic force microscopy, contact angle measurement, and X‐ray photoelectron spectroscopy. Antifouling properties are evaluated by protein adsorption and bacterial adhesion experiments using Staphylococcus aureus in vitro. Higher O2 content in the mixture gas promotes hydrophilicity of the plasma‐treated PMMA, while a hydrophobic surface forms at higher CF4 content. Modifying PMMA improves antifouling performance regardless of the O2/CF4 volume ratio, and this improvement increases with rising CF4 content in O2/CF4 plasma working gas. Functional groups CO and CF are detected in O2/CF4 plasma‐treated PMMA surface and the ratio of CO to CF can be controlled by the O2/CF4 volume ratio in the plasma working gas.

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Plasma initiated graft polymerization of 2-methacryloyloxyethyl phosphorylcholine on silicone elastomer surfaces to enhance bio(hemo)compatibility

Cited by 24 publications

References 37 publications

Immersive 5G Virtual Reality Visualization Display System Based on Big-Data Digital City Technology

Immersive 5G Virtual Reality Visualization Display System Based on Big-Data Digital City Technology

Lipid-Hydrogel-Nanostructure Hybrids as Robust Biofilm-Resistant Polymeric Materials

Plasma treatment of polymethyl methacrylate to improve surface hydrophilicity and antifouling performance

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