Interfacial gas nanobubbles or oil nanodroplets?

doi:10.1039/c6cp05137e

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Interfacial gas nanobubbles or oil nanodroplets?
	Wang, XY; Zhao, BY; Hu, J; Wang, S; Tai, RZ; Gao, XY; Zhang, LJ
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2017
卷号	19 期号:2 页码:1108-1114
ISSN号	1463-9076
DOI	10.1039/c6cp05137e
文献子类	期刊论文
英文摘要	The existence of nanobubbles at a solid-liquid interface with high stability has been confirmed by myriad experimental studies, and their gaseous nature has also been extensively verified. However, nanodroplets of polydimethylsiloxane (PDMS) recently observed in the atomic force microscopy (AFM) measurement of nanobubbles plague the nanobubble community. It may easily lead to wrong interpretations of the AFM results and thus hinders further application of the already widely used AFM in nanobubble studies. Therefore, finding a direct experimental solution to distinguish nanobubbles from nanodroplets in AFM measurements is a matter of great urgency. Herein, we first developed an effective and reproducible method to produce PDMS nanodroplets at the highly ordered pyrolytic graphite (HOPG)/water interface. From their size, contact angle, and stiffness, the formed PDMS nanodroplets are not distinguishable from nanobubbles. However, the force curves on these two objects are strikingly different from each other, i.e., a peculiar plateau in both the approach and retraction curves was found on nanobubbles whereas they changed linearly between the jump-in and jump-off point on PDMS nanodroplets. Thus, the present study not only provided a simple and effective procedure to generate PDMS nanodroplets but also paved a simple practical and in situ way to discriminate nanobubbles from the PDMS nanodroplets by direct AFM force measurements.
语种	英语
WOS记录号	WOS:000392399400018
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/27357]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Wang, XY,Zhao, BY,Hu, J,et al. Interfacial gas nanobubbles or oil nanodroplets?[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2017,19(2):1108-1114.
APA	Wang, XY.,Zhao, BY.,Hu, J.,Wang, S.,Tai, RZ.,...&Zhang, LJ.(2017).Interfacial gas nanobubbles or oil nanodroplets?.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,19(2),1108-1114.
MLA	Wang, XY,et al."Interfacial gas nanobubbles or oil nanodroplets?".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 19.2(2017):1108-1114.