Institution: | a Department of Chemistry and Applied Chemistry, Hanyang University, Ansan Sa 1-Dong 1271, Kyunggi-Do 426-791, Republic of Korea b Department of Advanced Material Chemistry, Korea University, Jochiwon, Choongnam 339-700, Republic of Korea c Radiopharmaceuticals Laboratory, Korea Institute of Radiological and Medical Sciences, Nowon-Gu, Gongneung-Dong 215-4, Seoul 139-706, Republic of Korea |