title: Dynamic behaviors of approximately ellipsoidal microbubbles photothermally generated by a graphene oxide-microheater.
abstract: Thermal microbubbles generally grow directly from the heater and are spherical to minimize surface tension. We demonstrate a novel type of microbubble indirectly generated from a graphene oxide-microheater. Graphene oxide's photothermal properties allowed for efficient generation of a thermal gradient field on the microscale. A series of approximately ellipsoidal microbubbles were generated on the smooth microwire based on heterogeneous nucleation. Other dynamic behaviors induced by the microheater such as constant growth, directional transport and coalescence were also investigated experimentally and theoretically. The results are not only helpful for understanding the bubble dynamics but also useful for developing novel photothermal bubble-based devices.
authors.affiliation: 1] Education Ministry's Key Laboratory of Laser Life Science &Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong. 510631, China [2].
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Xing
authors.affiliation: 1] Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, 510006 Guangzhou, China [2].
authors.forename: Jiapeng
authors.initials: J
authors.lastname: Zheng
authors.affiliation: Education Ministry's Key Laboratory of Laser Life Science &Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong. 510631, China.
authors.forename: Fengjia
authors.initials: F
authors.lastname: Li
authors.affiliation: Education Ministry's Key Laboratory of Laser Life Science &Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong. 510631, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Sun
authors.affiliation: Department of Light chemical engineering, Guangdong Polytechnic, Foshan. 528041, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Cai
authors.affiliation: Education Ministry's Key Laboratory of Laser Life Science &Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong. 510631, China.
authors.forename: Debin
authors.initials: D
authors.lastname: Zhu
authors.affiliation: School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Lei
authors.affiliation: Department of Light chemical engineering, Guangdong Polytechnic, Foshan. 528041, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Wu
authors.affiliation: Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, 510006 Guangzhou, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhou
authors.affiliation: Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, 510006 Guangzhou, China.
authors.forename: Julian
authors.initials: J
authors.lastname: Evans
authors.affiliation: Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, 510006 Guangzhou, China.
authors.forename: Ziyi
authors.initials: Z
authors.lastname: Chen