h ydro ph ob ic ▁states ▁on ▁por ous ▁sil icon ▁can ▁be ▁fabric ated ▁and ▁used ▁in ▁lab - on - a - ch ip , ▁micro fl uid ic ▁devices ▁for ▁the ▁improved ▁surface - based ▁bio analysis . ▁ ▁Opt ical ▁properties ▁p Si ▁demonstr ates ▁optical ▁properties ▁based ▁on ▁por os ity ▁and ▁the ▁medium ▁inside ▁the ▁por es . ▁The ▁effective ▁ref ract ive ▁index ▁of ▁p Si ▁is ▁determined ▁by ▁the ▁por os ity ▁and ▁ref ract ive ▁index ▁of ▁the ▁medium ▁inside ▁the ▁por es . ▁If ▁the ▁ref ract ive ▁index ▁of ▁the ▁medium ▁inside ▁por es ▁is ▁high , ▁the ▁effective ▁ref ract ive ▁index ▁of ▁p Si ▁will ▁be ▁high ▁as ▁well . ▁This ▁phenomen on ▁causes ▁the ▁spectrum ▁to ▁shift ▁towards ▁longer ▁w avel ength . ▁ ▁See ▁also ▁Nan oc ry st all ine ▁sil icon ▁Sil icon ▁Por os ity ▁Quant um ▁wire ▁Et ch ing ▁( m icro fab ric ation ) ▁ ▁References ▁ ▁Further ▁reading ▁ ▁Category : Sil icon ▁forms ▁Sil icon , ▁Por ous ▁Category : B iom ed ical ▁engineering ▁Category : Ph arm ac od ynam ics <0x0A> </s> ▁Sad ie ▁Anne ▁Stanley ▁( born ▁November ▁ 1 5 , ▁ 2 0 0 1 ) ▁is ▁an ▁American ▁actress ▁who ▁began ▁her ▁career ▁as ▁a ▁child ▁actress ▁as ▁the ▁tit ular ▁role ▁in ▁the ▁ 2 0 1 9 ▁Disney ▁Channel ▁Original ▁Movie , ▁Kim ▁Possible . ▁She ▁will ▁star ▁in ▁up