Plasma Cleaner

REFLEXAnalytical introduces a radio-frequency glow discharge accessory (RGD). Its primary purpose serves as a spectroscopic tool for cleaning transmission cells, windows, microscope slides and internal reflection elements but has also been ideal for sterilizing surgical components and implants in the medical and dental professions. Other applications include sample preparation for electron microscopy, the treatment of polymer surfaces to improve adhesion, the removal of photoresist on semiconductor wafers, and surface preparation prior to vacuum film evaporation in the coating industry.

Typically, residue considered to be organic contaminants, can become trapped in small margins and retentive areas as a result of hydrophobic areas on sampling or prosthetic surfaces. In cases of medical and dental implants, lack of attention to the surface energy and cleanliness may compromise the initial phases of tissue healing after implantation. This accessory removes residue and strongly bound hydrocarbon layers thereby preventing cross contamination and improving wettability, bioadhesiveness and biologic compatibility.

The RGD is a compact electrodeless device that utilizes radio-frequency to excite an Argon, Nitrogen, Oxygen or air gas which creates a plasma. The plasma created is a partially ionized complex gas composed of electrons, ions, free radicals, photons of various energies and gas atoms. The glow discharge or plasma produces an energized gas flow that modifies the physicochemical characteristics of solid surfaces without affecting the underlying bulk properties of the material. A few seconds exposure is often adequate to clean the surface.

Two models are available. The standard 100 watt unit (part no. RGD-100) offers a 3" diameter by 7" long chamber, overall measures 8" (H) x 10" (W) x 8" (D) and weighs 12 lbs. An expanded CE compliant, 200 watt unit (part no. RGD-200) is assembled with a 6" diameter by 6" long chamber, measures 11" (H) x 18" (W) x 9" (D) and weighs 45 lbs. Each model includes a 1/8" NPT needle valve, Pyrex chamber and an adjustable radio-frequency power setting. Options include 110V or 220V operation, quartz chambers and 0.1 torr vacuum pump. Inquire for current pricing.

REFLEXAnalytical Corporation, PO Box 119, Ridgewood, NJ 07451. Tel: 201-444-8958; Fax: 201-670-6737.