dc.contributor.author |
Yang, Qiufeng |
|
dc.contributor.author |
Dai, Zhao |
|
dc.contributor.author |
Guo, Wenjuan |
|
dc.contributor.author |
Chu, Yuanyuan |
|
dc.contributor.author |
Chen, Guangping |
|
dc.date.accessioned |
2023-01-20T05:49:35Z |
|
dc.date.available |
2023-01-20T05:49:35Z |
|
dc.date.issued |
2014-09-03 |
|
dc.identifier.citation |
Yang, Q., Dai, Z., Guo, W., Chu, Y., & Chen, G. (2014). Preparation and catalytic performance of temperature-responsive cell-like particles. Pakistan Journal of Pharmaceutical Sciences, 27(5). |
en_US |
dc.identifier.issn |
1011-601X |
|
dc.identifier.uri |
http://142.54.178.187:9060/xmlui/handle/123456789/16210 |
|
dc.description.abstract |
A novel kind of cell-like particles as temperature-responsive catalysts was presented in this paper. First,
uniform α-Fe2O3 shuttle-like nanoparticles were prepared by homogeneous hydrolysis. Then, these α-Fe2O3 particles were coated by Au nanoparticles (AuNPs), SiO2 and poly (N-isopropylacrylamide) (PNIPAM), respectively. After the removal of SiO2 layer by etching with HF solution, the cell-like particles were prepared when the α-Fe2O3, AuNPs, and PNIPAM were as cell nucleus, catalysts, and cell membranes, respectively. These cell-like particles showed a novel temperature-responsively catalytic performance because the PNIPAM shell could change its hydrophilicity and swelling capacity under different temperature. When the temperature was 25°C, the yield of 4-aminophenol (4-AP) from 4- nitrophenol (4-NP) by reduction of NaBH4 was about 100% in 15 min, while the yield of 4-AP was about 90.5% in 40 min. when the temperature was 40°C. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Karachi: Faculty of Pharmacy & Pharmaceutical Sciences University of Karachi |
en_US |
dc.subject |
α-Fe2O3, N-isopropylacrylamide |
en_US |
dc.subject |
Cell-Like Particles |
en_US |
dc.subject |
Catalyst |
en_US |
dc.subject |
Temperature-Responsive |
en_US |
dc.title |
Preparation and catalytic performance of temperature-responsive cell-like particles |
en_US |
dc.type |
Article |
en_US |