Tuning the properties of ZnO, hematite, and Ag nanoparticles by adjusting the surface charge.
A poly (acryl acid) (PAA) post-treatment method is performed to modify the surface charge of ZnO nanospheres, hematite nanocubes, and Ag nanoprisms from highly positive to very negative by adjusting the PAA concentration, to and greatly modify their photoluminescence, cytotoxicity, magnetism, and surface plasmon resonance. This method provides a general way to tune the nanoparticle properties for broad physicochemical and biological applications.
National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing, China. zhangjh@nju.edu.cn
Jianhui
J
Zhang
Guanjun
G
Dong
Aaron
A
Thurber
Yayi
Y
Hou
Min
M
Gu
Dmitri A
DA
Tenne
C B
CB
Hanna
Alex
A
Punnoose
D000180:Acrylic Resins / Q000737:chemistry*; D002460:Cell Line; D003603:Cytotoxins / Q000737:chemistry / Q000633:toxicity; D005290:Ferric Compounds / Q000737:chemistry* / Q000633:toxicity; D006801:Humans; D049449:Luminescence; D053758:Nanoparticles / Q000737:chemistry* / Q000633:toxicity / Q000648:ultrastructure; D012834:Silver / Q000737:chemistry* / Q000633:toxicity; D055672:Static Electricity; D020349:Surface Plasmon Resonance; D013499:Surface Properties; D015034:Zinc Oxide / Q000737:chemistry* / Q000633:toxicity
D000180:Acrylic Resins; D003603:Cytotoxins; D005290:Ferric Compounds; C000499:ferric oxide; D012834:Silver; C006903:carbopol 940; D015034:Zinc Oxide