Reference

Colored cyanoacrylate adhesive composition

Colored cyanoacrylate adhesive composition. Nakata, Chiaki; Kawazoe, Noriyuki; Tanenaka, Toshio (Sumitomo Chemical Co., Ltd. ; Taoka Chemical Co., Ltd., Japan). Eur. Pat. Appl. EP 105062 A1 11 Apr 1984, 16 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C09J003-14; C08F222-00. APPLICATION: EP 82-305207 30 Sep 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) To impart a fluorescent color suitable for visual distinction, cyanoacrylate adhesives are mixed with small amts. of C.I. Solvent Green 5 (I) [79869-59-3], C.I. Acid Red 50 [5873-16-5], or C.I. Acid Red 52 [3520-42-1]. The coloring agent does not affect the storage stability or bonding performance of the adhesives. Thus, Et a-cyanoacrylate contg. I 1000, SO2 15, and hydroquinone 550 ppm had a greenish fluorescence and a bright yellow color.

Fiber-optic probe for in vivo measurement of oxygen partial pressure

Fiber-optic probe for in vivo measurement of oxygen partial pressure. Peterson, John I.; Fitzgerald, Raphael V.; Buckhold, Delwin K. (Div. Res. Serv., Natl. Inst. Health, Bethesda, MD 20205, USA). Anal. Chem., 56(1), 62-7 (English) 1984. CODEN: ANCHAM. ISSN: 0003-2700. DOCUMENT TYPE: Journal CA Section: 9 (Biochemical Methods) Section cross-reference(s): 73, 79 A fiber optic probe for measuring pO2 is described that is based on fluorescence quenching and consists of two 250-mm strands of plastic optical fiber ending in a section of porous polymer tubing ~3 mm long and 0.6 mm in diam. The tubing is packed with dye on an adsorptive support. The general construction is similar to a pH probe which has previously been reported (Peterson, J. I. et al., 1980; Goldstein, S. R. et al., 1980). The development required the soln. of 3 major problems not encountered before in application of this principle: (1) a dye was needed with the combined properties of suitable O quench sensitivity, excitation by visible light, and resistance to fading; perylene dibutyrate (solvent green 5, CI 59075) was selected; (2) a hydrophobic, high-O-permeability polypropylene envelope was necessary; and (3) an adsorptive support (Amberlite XAD 4) was required which activated the dye without sensitivity to humidity.Except for chemicals metioned above, 9003-07-0 and 79869-59-3 are also used. This design provides a small-size, low-cost probe suitable for tissue and blood vessel implantation. .