Porous Silicon Coated with Calixarene Carboxylic Acid Derivatives:  Effects on Luminescence Quenching Selectivity ZhangLibing CofferJeffery L. WangJianshe GutscheC. David ChenJin-Jian ChyanOliver 1996 Porous Silicon Coated with Calixarene Carboxylic Acid Derivatives:  Effects on Luminescence Quenching Selectivity