ICCAS OpenIR
The pH stimulated reversible loading and release of a cationic dye in a layer-by-layer assembled DNA/PAH film
Jiang, SG; Chen, XD; Liu, MH
2004-09-15
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume277Issue:2Pages:396-403
AbstractThrough the layer-by-layer (LbL) deposition method, DNA was assembled into an ultrathin film with a cationic poly(allylamine hydrochloride) (PAH). The loading and release of a typical cationic dye, 5, 10, 15, 20-tetrakis(4-N-methylpyridyl)porphine-tetra-(p-toluenesulfonate) (TMPyP), in the DNA/PAH films were investigated. It has been found that the LbL-assembled DNA/PAH film was very stable in both acidic and alkaline solutions. Stimulated by the pH change of the dye solution, the dye can be easily loaded into or released from the DNA/PAH film. In an alkaline solution, the dye could be rapidly loaded into the DNA/PAH film at room temperature, while in an acidic solution, the dye could be rapidly released. The mechanism of such pH-stimulated loading and release in the DNA/PAH film was discussed. It was further observed that the loading and release of the dye in the DNA/PAH film was reversible upon pH change and the process could be repeated many times. (C) 2004 Elsevier Inc. All rights reserved.
KeywordDna Film Dye Intercalation Layer By Layer Reversible Loading And Release
DOI10.1016/j.jcis.2004.04.008
Indexed BySCI
Language英语
WOS IDWOS:000223378900019
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81758
Collection中国科学院化学研究所
Corresponding AuthorLiu, MH
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, CAS Key Lab Colloid & Interface Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Jiang, SG,Chen, XD,Liu, MH. The pH stimulated reversible loading and release of a cationic dye in a layer-by-layer assembled DNA/PAH film[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2004,277(2):396-403.
APA Jiang, SG,Chen, XD,&Liu, MH.(2004).The pH stimulated reversible loading and release of a cationic dye in a layer-by-layer assembled DNA/PAH film.JOURNAL OF COLLOID AND INTERFACE SCIENCE,277(2),396-403.
MLA Jiang, SG,et al."The pH stimulated reversible loading and release of a cationic dye in a layer-by-layer assembled DNA/PAH film".JOURNAL OF COLLOID AND INTERFACE SCIENCE 277.2(2004):396-403.
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