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Maryam Arabi, Abbas Ostovan, Yunqing Wang, Rongchao Mei, Longwen Fu, Jinhua Li, Xiaoyan Wang, Lingxin Chen
Chiral discrimination is critical in environmental and life sciences. However, an ideal chiral discrimination strategy has not yet been developed because of the inevitable nonspecific binding entity of wrong enantiomers or insufficient intrinsic optical activities of chiral molecules. Here, we propose an "inspector" recognition mechanism (IRM), which is implemented on a chiral imprinted polydopamine (PDA) layer coated on surface-enhanced Raman scattering (SERS) tag layer. The IRM works based on the permeability change of the imprinted PDA after the chiral recognition and scrutiny of the permeability by an inspector molecule. Good enantiomer can specifically recognize and fully fill the chiral imprinted cavities, whereas the wrong cannot. Then a linear shape aminothiol molecule, as an inspector of the recognition status is introduced, which can only percolate through the vacant and nonspecifically occupied cavities, inducing the SERS signal to decrease. Accordingly, chirality information exclusively stems from good enantiomer specific binding, while nonspecific recognition of wrong enantiomer is curbed. The IRM benefits from sensitivity and versatility, enabling absolute discrimination of a wide variety of chiral molecules regardless of size, functional groups, polarities, optical activities, Raman scattering, and the number of chiral centers.
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Arabi, M., Ostovan, A., Wang, Y., Mei, R., Fu, L., Li, J., Wang, X., & Chen, L. (2022). Chiral molecular imprinting-based SERS detection strategy for absolute enantiomeric discrimination. Nature Communications, 13(1), 5757. https://doi.org/10.1038/s41467-022-33448-w
Arabi, Maryam, et al. "Chiral molecular imprinting-based SERS detection strategy for absolute enantiomeric discrimination." Nature Communications, vol. 13, no. 1, 2022, pp. 5757, https://doi.org/10.1038/s41467-022-33448-w.
Arabi, Maryam, Abbas Ostovan, Yunqing Wang, Rongchao Mei, Longwen Fu, Jinhua Li, Xiaoyan Wang, and Lingxin Chen. "Chiral molecular imprinting-based SERS detection strategy for absolute enantiomeric discrimination." Nature Communications 13, no. 1 (2022): 5757. https://doi.org/10.1038/s41467-022-33448-w.
Arabi M., Ostovan A., Wang Y. [и др.] Chiral molecular imprinting-based SERS detection strategy for absolute enantiomeric discrimination // Nature Communications. — 2022. — Vol. 13, № 1. — P. 5757. — URL: https://doi.org/10.1038/s41467-022-33448-w
@article{arabi2022chiral,
title = {{Chiral molecular imprinting-based SERS detection strategy for absolute enantiomeric discrimination}},
author = {Maryam Arabi and Abbas Ostovan and Yunqing Wang and Rongchao Mei and Longwen Fu and Jinhua Li and Xiaoyan Wang and Lingxin Chen},
journal = {Nature Communications},
year = {2022},
volume = {13},
number = {1},
pages = {5757},
doi = {10.1038/s41467-022-33448-w},
url = {https://doi.org/10.1038/s41467-022-33448-w}
}TY - JOUR AU - Arabi, Maryam AU - Ostovan, Abbas AU - Wang, Yunqing AU - Mei, Rongchao AU - Fu, Longwen AU - Li, Jinhua AU - Wang, Xiaoyan AU - Chen, Lingxin TI - Chiral molecular imprinting-based SERS detection strategy for absolute enantiomeric discrimination JO - Nature Communications VL - 13 IS - 1 SP - 5757 PY - 2022 DA - 2022/09/30 DO - 10.1038/s41467-022-33448-w UR - https://doi.org/10.1038/s41467-022-33448-w ER -
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