title: Aptamer/graphene oxide nanocomplex for in situ molecular probing in living cells.
abstract: Graphene has shown fascinating applications in bionanotechnology, including DNA sensing, protein assays, and drug delivery. However, exploration of graphene with intracellular monitoring and in situ molecular probing is still at an early stage. In this regard, we have designed an aptamer-carboxyfluorescein (FAM)/graphene oxide nanosheet (GO-nS) nanocomplex to investigate its ability for molecular probing in living cells. Results demonstrate that uptake of aptamer-FAM/GO-nS nanocomplex and cellular target monitoring were realized successfully. The dramatic delivery, protection, and sensing capabilities of GO-nS in living cells indicate that graphene oxide could be a robust candidate for many biological fields, such as DNA and protein analysis, gene and drug delivering, and intracellular tracking.
authors.affiliation: Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Li
authors.forename: Dehong
authors.initials: D
authors.lastname: Hu
authors.forename: Chiann-Tso
authors.initials: CT
authors.lastname: Lin
authors.forename: Jinghong
authors.initials: J
authors.lastname: Li
authors.forename: Yuehe
authors.initials: Y
authors.lastname: Lin
mesh_terms: D000255:Adenosine Triphosphate; D052157:Aptamers, Nucleotide; D002460:Cell Line; D005452:Fluoresceins; D005453:Fluorescence; D006108:Graphite; D006801:Humans; D015336:Molecular Probe Techniques; D015335:Molecular Probes / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry; D009841:Oligonucleotides; D010087:Oxides
chemical_list: D052157:Aptamers, Nucleotide; D005452:Fluoresceins; D015335:Molecular Probes; D009841:Oligonucleotides; D010087:Oxides; C024098:6-carboxyfluorescein; D006108:Graphite; D000255:Adenosine Triphosphate