SOME NEW METHODS FOR AFFIXING SECTIONS TO GLASS SLIDES .1. AQUEOUS ADHESIVES

As a new aqueous adhesive to affix sections to glass slides, hydrolyzed vinyltriethoxysilane.sbd.either pure, in combination with polyvinyl alcohol or with speciallly prepared aqueous polyacrylate solutions.sbd.was applied. The silane proved to be very effective in enhancing bonding to the glass surface. As a general aqueous adhesive, a solution of 2% polyvinyl alcohol (m.w. 108,000; 99.7% hydrolyzed) with 0.2% hydrolyzed vinyltriethoxysilane is recommended. This stock solution is diluted 1:10 to 1:50 and used directly to float sections onto slides on a warming plate.