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Free-standing molecularly imprinted photonic hydrogels based on β-cyclodextrin for the visual detection of L-tryptophan
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yang, Zhaokun Shi, Dongjian Chen, Mingqing Liu, Shirong |
| Copyright Year | 2015 |
| Abstract | Inverse opals of molecularly imprinted photonic hydrogels (CD-MIPHs) based on β-cyclodextrin were first elaborated by using a colloidal crystal template method. The film can be exfoliated from the substrate in H2O to get a free-standing photonic crystal film. L-Tryptophan imprinted polyacrylamide photonic hydrogels (PAM-MIPHs) and CD-MIPHs were fabricated in this paper. The PAM-MIPHs exhibited a good sensing property to L-Trp and the redshift of the Bragg diffraction peak was 83 nm. Furthermore, improved recognition of L-Trp can be achieved by using CD-MIPHs. The Bragg diffraction peak of CD-MIPHs redshifted by 126 nm when the CD-MIPHs were immersed in a series of concentrations of L-Trp solution, and a visually perceptible color change was clear. Moreover, enantioselective recognition of Trp enantiomers was accomplished by CD-MIPHs instead of PAM-MIPHs. In short, the resultant CD-MIPHs showed a rapid response, high selectivity, high sensitivity and specificity towards imprinted molecules in an aqueous environment. |
| Starting Page | 8352 |
| Ending Page | 8359 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C5AY01839K |
| Volume Number | 7 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c5/ay/c5ay01839k/c5ay01839k1.pdf |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/getauthorversionpdf/C5AY01839K |
| Alternate Webpage(s) | https://doi.org/10.1039/C5AY01839K |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
