3 edition of Dwell time and surface parameter effects on removal of silicone oil from D6ac steel using TCA found in the catalog.
Dwell time and surface parameter effects on removal of silicone oil from D6ac steel using TCA
|Series||NASA/TM -- 2003-212345., NASA technical memorandum -- 212345.|
|Contributions||George C. Marshall Space Flight Center.|
|The Physical Object|
Silicone oil removal: Results, risks and complications Christoph Scholda, Stefan Egger, Adalbert Lakits and Raja Haddad Eye Clinic, Department A, University of Vienna, Vienna, Austria ABSTRACT. Purpose: We studied the results and complications of silicone oil removal apply- ing basic criteria for the selection of eyes. management of glaucoma after intravitreal silicone oil injection for complicated retinal detachments. Ophthalmology ; 6. Gurelik G, Safak N, Koksal M, et al. Acute corneal decompensation after silicone oil removal. Int Ophthalmol. ; 7. Hutton WL, Azen SP, Blumenkrans MS, et al. The effects of silicone oil removal.
There is no definitive agreement on the appropriate time period and indication of silicone oil removal. However, the rate of retinal re-detachment after silicone oil removal varies widely and appears to correlate with the underlying disease process and its severity. The literature on strategies of silicone oil removal, the rate of. Silicone oil is commonly used as a lubricant to facilitate plunger movement in glass syringes. It is well known that silicone oil can lead to the presence of subvisible particles in a drug product, and in the case of a protein-based drug product, might induce aggregates that diminish performance, or .
Silicone oils are important tools in vitreoretinal surgery because they have the ability to displace aqueous humor from the retinal surface, maintaining the adhesion between retina and retinal pigment epithelium. To understand this capability, it is important to know the silicone oil characteristics. Herein, we report first on the main chemical-physical proprieties and then we review the. Once the dust particle has entered an oil film it forms a direct link between the two surfaces, nullifying the effect of the oil film (see Figure 1). The first and immediate effect is a "scratching" of the surface as the particle is dragged and rolled across the surfaces.
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DWELL TIME AND SURFACE PARAMETER EFFECTS ON REMOVAL OF SILICONE OIL FROM D6AC STEEL USING TCA 1. INTRODUCTION Although silicone oil is considered to be one of the most difficult contaminants to remove from a surface, not much is known regarding factors that influence the ability to perform a successful cleaning : R.
Boothe. Download Citation | Dwell Time and Surface Parameter Effects on Removal of Silicone Oil From D6ac Steel Using TCA | This study was conducted to evaluate the impact of dwell time, surface. This study was conducted to evaluate the impact of dwell time, surface roughness, and the surface activation state on 1,1,1-trichloroethane's (TCA's) effectiveness for removing silicone oil from D6ac steel.
Silicone-contaminated test articles were washed with TCA solvent, and then the surfaces were analyzed for residue, using Fourier transform infrared : R. Boothe. Get this from a library. Dwell time and surface parameter effects on removal of silicone oil from D6ac steel using TCA.
[R E Boothe; George C. Marshall Space Flight Center.]. This study was conducted to evaluate the impact of dwell time, surface roughness, and the surface activation state on 1,1,1-trichloroethane's (TCA's) effectiveness for removing silicone oil from D6ac steel.
Silicone-contaminated test articles were washed with TCA solvent, and then the surfaces were analyzed for residue, using Fourier transform infrared spectroscopy. Dwell Time and Surface Parameter Effects on Removal of Silicone Oil From D6ac Steel Using TCA.
R.E. Boothe. Materials, Processes, and Manufacturing Department, Engineering Directorate. This study was conducted to evaluate the impact of dwell time, surface roughness, and the surface activation state on 1,1,1-trichloroethane’s (TCA’s.
A year-old man with proliferative diabetic retinopathy who had had silicone oil tamponade and removal, silicone intraocular lens (IOL) implantation, and neodymium:YAG capsulotomy presented with blurred vision.
Slitlamp examination revealed a silicone oil droplet on the posterior surface of the silicone. Materials. Silicone oil-free 1-mL polymer-based syringes (PLAJEX™) with long staked needle (27G), henceforth referred to as “polymer-SOF,” were provided by Terumo Company (Tokyo, Japan).
2 PLAJEX™ syringe is a recently developed prefillable syringe made from COP with a novel butyl rubber plunger stopper coated using proprietary coating technique.
Silicone oil immersed low-force electrical contacts were made using a modified nano-indentation apparatus. A schematic of the contact zone is shown in Fig. The apparatus was able to measure electrical contact resistance and adhesion of Au-coated spheres contacting silicone oil-contaminated Au-metallized silicon wafers.
in this effort identified an FT-IR spectroscopic detection limit for surface silicone utilizing the area under the cm-1 (Si-CH 3) absorbance peak as a function of concentration (g/cm 2). The next step was to pre-contaminate surfaces with known concentrations of silicone oil and assess the effects on surface wetting and adhesion.
The mean duration of intraocular silicone oil tamponade was months, with a mean postoperative follow up of years. RESULTS—Anatomic success after silicone oil removal, defined as a complete retinal attachment, was achieved in 95 of eyes (%).
Redetachment occurred in 20 eyes (%), mostly within the first 6 months after silicone oil removal. The median time of silicone oil extraction was days after its placement.
The mean intraocular pressure was + − before and + − after silicone oil removal. Phacoemulsification with IOL implantation was combined with silicone oil removal. Investigation of Factors Affecting Protein-Silicone Oil Interactions Nitin Dixit, Ph.D. University of Connecticut, Abstract Silicone oil, a lubricant in pharmaceutical containers, has been implicated as a risk factor for protein formulations because of its tendency to cause protein aggregation and/or particulate generation.
This study was conducted to evaluate the impact of dwell time, surface roughness, and the surface activation state on 1,1,1-trichloroethane's (TCA's) effectiveness for removing silicone oil from. Reviewed by Derek Kunimoto, MD, JD. Paradise Valley, AZ—Use of silicone oil for retinal tamponade can result in a range of ately, most of these events can be avoided with careful attention to surgical technique or successfully treated if they occur, while those without any known preventive strategies are very rare, said Derek Kunimoto, MD, JD.
silicone removal. 2 INTRODUCTION Silicone products used for spacecrafts range from oils and greases to cured products as used for sealing materials, adhesives, paints, or conformal coatings. They offer excellent properties, e.g.
low vapour pressure and low surface tension (oil lubricants), high thermal. Silicone Oil. Another method is lubrication using silicone oil–based lubricants. This is a familiar method to engineers and is intuitive because using silicone fluid to join silicone ensures the materials’ compatibility.
However, there are some major drawbacks to silicone oil. First, applying it can be messy. Silicone oil was introduced by Cibis in the s as an intraocular tamponade prior to the introduction of pars plana vitrectomy.
1 It has become the preferred tamponade agent in cases at high risk for recurrent retinal detachment, such as in eyes with retinal detachment associated with severe proliferative vitreoretinopathy (PVR) or with detachment resulting from viral retinitis.
silicone oil can prevent the development or pro-gression ofthese complications." Sofar there have been few reports detailing the complications ofthe procedureofsilicone oil removal.'"' Thepurposeofthisstudyis toreporttheperopera-tive and postoperative complications of removal of silicone oil in alarge numberofpatients.
Theeffects. the web. One very common traditional method is the application of a silicone resin using a set of rollers onto the substrate followed by the curing of the silicone using an energy source oven (Figure 1). The coating can be cured using thermal or ultraviolet energy, as the curing oven can be equipped with a heat source or bank of ultraviolet lamps.
Silicone oil sc Hazard Alert Code Key: EXTREME HIGH MODERATE LOW Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME Silicone oil STATEMENT OF HAZARDOUS NATURE CONSIDERED A HAZARDOUS SUBSTANCE ACCORDING TO OSHA 29 CFR NFPA SUPPLIER Company: Santa Cruz Biotechnology, Inc.
Delaware Ave .Compared with the eyes that did not undergo silicone oil removal (oil-retained eyes) evaluated at a comparable time after oil injection, oil-removed eyes at the examination prior to oil removal were more likely to be attached (85% vs 40%; P.Silicone oil consists of alternating atoms of silicone and oxygen -O-Si-O-Si.).
This odorless oil is nonflammable and nontoxic. Due to its lubricating properties and magnificent thermal stability, this oil is used in several industries, such as medical industry, automotive industry, and aerospace industry.