Hong, Dang Diem
Anh, Hoang Thi Lan
Tam, Luu Thi
Show, Pau Loke
Leong, Hui Yi
Funding for this research was provided by:
Vietnam Academy of Science and Technology (VAST. TĐ. NANO.04/15-18, HĐ 22/AD-VCNMT)
Article History
Received: 7 January 2019
Accepted: 31 May 2019
First Online: 27 June 2019
Competing interests
: The co-author Pau Loke Show declared himself as a member of the editorial board of this journal. Other authors declared that they have no competing interests.