A colorimetric agarose gel for formaldehyde measurement based on nanotechnology involving Tollens reaction.
Gold nanoparticles (Au NPs) coupled with Tollens reagent were used for measuring formaldehyde. Au@Ag core-shell NPs were formed along with distinct color changes from pink to deep yellow. This colorimetric system was further immobilized into an agarose gel, which was used for monitoring of gaseous formaldehyde.
State Key Laboratory of Heavy Oil Processing and College of Science, China University of Petroleum (East China), Qingdao, 266555, China. xmuzjb@163.com zfyancat@upc.edu.cn.
Jing-bin
JB
Zeng
Shi-guang
SG
Fan
Cui-ying
CY
Zhao
Qian-ru
QR
Wang
Ting-yao
TY
Zhou
Xi
X
Chen
Zi-feng
ZF
Yan
Yan-peng
YP
Li
Wei
W
Xing
Xu-dong
XD
Wang
D003124:Colorimetry / Q000379:methods*; D005557:Formaldehyde / Q000032:analysis*; D005782:Gels; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D036103:Nanotechnology / Q000379:methods*; D012685:Sepharose / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*
D005782:Gels; D005557:Formaldehyde; D012834:Silver; D006046:Gold; D012685:Sepharose