CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
In situ AFM observation of BSA adsorption on HOPG with nanobubble
Wu, ZH; Zhang, XH; Zhang, XD; Sun, JL; Dong, YM; Hu, J(胡钧); Wu, ZH (reprint author), Nanchang Univ, Jiangxi OAI Joint Res Inst, Nanchang 330047, Peoples R China
2007
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume52Issue:14Pages:1913
AbstractNanobubbles have been proven existent at the liquid/solid interface, and become a focus of research on varied interfacial processes. In the present work, by observing in situ with atomic force microscope (AFM), we found that nanobubbles could influence the adsorption process of bovine serum albumin (BSA) on hydrophobic surface of highly ordered pyrolytic graphite (HOPG). BSA could adsorb evenly, and coexist with nanobubbles at water/HOPG interface. After removing nanobubbles by injecting ethanol, some hollows were found in the BSA layers at the same positions of nanobubbles existing previously. These hollows were about 8 nm in depth and dozens of nanometers in diameter. The correlation coefficient between the areas of nanobubbles and that of the corresponding hollows reached 0.88-0.94, which strongly supported the assumption that the hollows were indeed caused by the nanobubbles. Moreover, the BSA molecules formed rings around the nanobubbles, suggesting the preference of BSA adsorption onto the contact line at water/HOPG interface.
KeywordNanobubble Adsorption Bovine Serum Albumin (Bsa) Highly Ordered Pyrolytic Graphite (Hopg) Atomic Force Microscope (Afm)
Subject AreaPhysics
Indexed Bysci
Language英语
Funding Project应物所项目组
WOS IDWOS:000249187100006
Citation statistics
Cited Times:39[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8076
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorWu, ZH (reprint author), Nanchang Univ, Jiangxi OAI Joint Res Inst, Nanchang 330047, Peoples R China
Recommended Citation
GB/T 7714
Wu, ZH,Zhang, XH,Zhang, XD,et al. In situ AFM observation of BSA adsorption on HOPG with nanobubble[J]. CHINESE SCIENCE BULLETIN,2007,52(14):1913.
APA Wu, ZH.,Zhang, XH.,Zhang, XD.,Sun, JL.,Dong, YM.,...&Wu, ZH .(2007).In situ AFM observation of BSA adsorption on HOPG with nanobubble.CHINESE SCIENCE BULLETIN,52(14),1913.
MLA Wu, ZH,et al."In situ AFM observation of BSA adsorption on HOPG with nanobubble".CHINESE SCIENCE BULLETIN 52.14(2007):1913.
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