Enhancing the Delamination Efficiency of Polyimide-Copper Bilayers with UV/Heat-Activated Foamable Adhesive: Insights and Applications.

This study explores the adhesive properties of copolymers comprising glycidyl methacrylate (GMA) and 3-(trimethoxysilyl)propyl methacrylate (MPTMS), focusing on their suitability for adhesive applications. Peel resistance measurements revealed a substantial impact of the GMA/MPTMS ratio on adhesion capabilities, identifying an optimal ratio of 30/70 for copolymerization with -butyl acrylate (BA) to improve foaming performance. BA, a foaming monomer activated by a photoacid generator and heat, enhances the copolymerized adhesive's adhesion strength and foamability for postuse delamination.

Development of calcium releasing activity induced by inositol trisphosphate and cyclic ADP-ribose during in vitro maturation of sea urchin oocytes.

During fertilization of sea urchin eggs, the cytoplasmic Ca(2+) concentration ([Ca(2+)](i)) transiently increases (Ca(2+) transient). Increased [Ca(2+)](i) results from a rapid release from intracellular stores, mediated by one or both of two signaling pathways; inositol 1,4,5-trisphosphate (IP(3)) and IP(3) receptor (IP(3)R) or cyclic GMP (cGMP), cyclic ADP-ribose (cADPR) and ryanodine receptor (RyR). During fertilization, cGMP and cADPR increase preceding the Ca(2+) transient, suggesting their contribution to this.