DISSOLUTION CHEMISTRY AND BIOCOMPATIBILITY OF SINGLE-CRYSTALLINE SILICON NANOMEMBRANES AND ASSOCIATED MATERIALS FOR TRANSIENT ELECTRONICS

Suk-Won Hwang,†,( Gayoung Park,‡,( Chris Edwards,§ Elise A. Corbin, )Seung-Kyun Kang,† Huanyu Cheng,^ Jun-Kyul Song,† Jae-Hwan Kim,† Sooyoun Yu,# Joanne Ng,‡ Jung Eun Lee,‡ Jiyoung Kim,‡ Cassian Yee,z Basanta Bhaduri,§ Yewang Su,^,´ Fiorenzo G. Omennetto,Δ Yonggang Huang,^ Rashid Bashir, ) Lynford Goddard,§ Gabriel Popescu,§ Kyung-Mi Lee,‡,1, * and John A. Rogers†,§,9,1, *
ACS NANO (2014) 2014

Single crystalline silicon nanomembranes (Si NMs) represent a critically important class of material for high performance forms of electronics that are capable of complete, controlled dissolution when immersed in water and/or bio-fluids, sometimes referred to as a type of ‘transient’ electronics. The results reported here include the kinetics of hydrolysis of Si NMs in bio-fluids and various aqueous solutions through a range of relevant pH values and temperatures, as well as the effects of dopant type and concentration. In vitro and in vivo investigations of Si NMs and other transient electronic materials demonstrate biocompatibility and bio-resorption, thereby suggesting potential for envisioned applications in active, biodegradable electronic implants.