Sigma-Aldrich
Niobium
铌
Nitrogen/Phosphorus co-doped graphene
O-[2-(Biotinyl-amino)ethyl]-O′-[3-(N-succinimidyloxy)-3-oxopropyl]polyethylene glycol
O-[2-(生物素基-氨基)乙基]-O′-[3-(N-琥珀酰亚胺氧基)-3-氧代丙基]聚乙二醇 3000