Abbreviation: XRD, X-ray diffraction. 4882 submit your manuscript | www.dovepress.com Dovepress International Journal of Nanomedicine 2014:9 Powered by TCPDF (www.tcpdf.org) Dovepress Er O Pt Pt Yb P Dy YbPO4:Er,Dy microspheres designed for tumor theranostics Spectrum 1 Er C Pt Yb Yb ...