期刊
BIOCONJUGATE CHEMISTRY
卷 22, 期 12, 页码 2558-2567出版社
AMER CHEMICAL SOC
DOI: 10.1021/bc200397j
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资金
- Converging Research Center throught the National Research Foundation of (NRF) [2011K000820]
- Ministry of Education, Science and Technology
- Fundamental R&D Program for Core Technology of Materials [K00060-283]
- Ministry of Knowledge Economy, Republic of Korea
- National Research Foundation of Korea [2010-50200] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Graphene oxide (GO) has attracted an increasing amount of interest because of its potential applications in biomedical fields such as biological imaging, molecular imaging, drug/gene delivery, and cancer therapy. Moreover, GO could be fabricated by modifying its functional groups to impart specific functional or structural attributes. This study demonstrated the development of a GO-based efficient gene delivery carrier through installation of polyethylenimine, a cationic polymer, which has been widely used as a nonviral gene delivery vector. It was revealed that a hybrid gene carrier fabricated by conjugation of low-molecular weight branched polyethylenimine (BPEI) to GO increased the effective molecular weight of BPEI and consequently improved DNA binding and condensation and transfection efficiency. Furthermore, this hybrid material facilitated sensing and bioimaging because of its tunable and intrinsic electrical and optical properties. Considering the extremely high transfection efficiency comparable to that of high-molecular weight BPEI, high cell viability, and its application as a bioimaging agent, the BPEI-GO hybrid material could be extended to siRNA delivery and photothermal therapy.
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