DataVXACS Applied Materials & InterfacesPaper
journal article·2022-06-15Open access

Phosphonium-Based Ionic Liquid Significantly Enhances SERS of Cytochrome c on TiO2 Nanotube Arrays

Yihui Dong, Mian Gong, Faiz Ullah Shah, Aatto Laaksonen, Rong An, Xiaoyan Ji

ACS Applied Materials & Interfaces· Volume 14· Issue 23
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Source abstract

Abstract

Surface-enhanced Raman scattering (SERS) is an attractive technique for studying trace detection. It is of utmost importance to further improve the performance and understand the underlying mechanisms. An ionic liquid (IL), the anion of which is derived from biomass, [P6,6,6,14][FuA] was synthesized and used as a trace additive to improve the SERS performance of cytochrome c (Cyt c) on TiO2 nanotube arrays (TNAs). An increased and better enhancement factor (EF) by four to five times as compared to the system without an IL was obtained, which is better than that from using the choline-based amino acid IL previously reported by us. Dissociation of the ILs improved the ionic conductivity of the system, and the long hydrophobic tails of the [P6,6,6,14]+ cation contributed to a strong electrostatic interaction between Cyt c and the TNA surface, thereby enhancing the SERS performance. Atomic force microscopy did verify strong electrostatic interactions between the Cyt c molecules and TNAs after the addition of the IL. This work demonstrates the importance of introducing the phosphonium-based IL to enhance the SERS performance, which will stimulate further development of more effective ILs on SERS detection and other relevant applications in biology.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

Nanomaterials

OpenAlex topics: Electrochemical Analysis and Applications · Quantum Dots Synthesis And Properties · Electrochemical sensors and biosensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel

Herbert Gleiter Institute of Nanoscience, Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China

Chemistry of Interfaces, Luleå University of Technology, Luleå SE-971 87, Sweden

Energy Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden

Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm SE-10691, Sweden

Center of Advanced Research in Bionanoconjugates and Biopolymers, ‘‘Petru Poni” Institute of Macromolecular Chemistry, Iasi 700469, Romania

State Key Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 211816, China

Funding

Vetenskapsr?det · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Ministerul Cercetarii si Inovarii

References (50)

Show source-provided references
1. 10.1038/nmat348810.1038/nmat3488 ↗
2. 10.1038/nmat244210.1038/nmat2442 ↗
3. 10.1039/c1cs15274b10.1039/c1cs15274b ↗
4. 10.1039/c6nr08693d10.1039/c6nr08693d ↗
5. 10.1002/anie.20200048910.1002/anie.202000489 ↗
6. 10.1021/acsnano.9b0422410.1021/acsnano.9b04224 ↗
7. Chen L. · 1
8. 10.1021/ac303432210.1021/ac3034322 ↗
9. 10.1364/oe.20.02316210.1364/oe.20.023162 ↗
10. 10.3390/s12121733010.3390/s121217330 ↗
11. 10.1073/pnas.170720711510.1073/pnas.1707207115 ↗
12. 10.1021/ja808277u10.1021/ja808277u ↗
13. 10.1021/jp202590e10.1021/jp202590e ↗
14. 10.1021/acs.chemrev.7b0066810.1021/acs.chemrev.7b00668 ↗
15. 10.1038/s41467-020-15484-610.1038/s41467-020-15484-6 ↗
16. 10.1016/j.jhazmat.2020.12400910.1016/j.jhazmat.2020.124009 ↗
17. 10.1021/acs.jpcc.0c0879310.1021/acs.jpcc.0c08793 ↗
18. 10.1021/acs.langmuir.1c0172610.1021/acs.langmuir.1c01726 ↗
19. 10.1016/j.jcis.2018.11.03510.1016/j.jcis.2018.11.035 ↗
20. 10.1039/c1fd00050k10.1039/c1fd00050k ↗
21. 10.1021/acs.chemrev.6b0056210.1021/acs.chemrev.6b00562 ↗
22. 10.1021/acs.chemrev.6b0055010.1021/acs.chemrev.6b00550 ↗
23. 10.1016/j.jcis.2018.07.03810.1016/j.jcis.2018.07.038 ↗
24. 10.1002/chem.20070027510.1002/chem.200700275 ↗
25. 10.1039/b922014c10.1039/b922014c ↗
26. 10.1039/b918763b10.1039/b918763b ↗
27. 10.1039/c9cs00016j10.1039/c9cs00016j ↗
28. 10.1039/c2gc16128a10.1039/c2gc16128a ↗
29. 10.1021/acs.langmuir.1c0052510.1021/acs.langmuir.1c00525 ↗
30. 10.1039/b209734f10.1039/b209734f ↗
31. 10.1021/acs.jpcb.0c0842110.1021/acs.jpcb.0c08421 ↗
32. 10.1021/acssuschemeng.0c0256810.1021/acssuschemeng.0c02568 ↗
33. 10.1071/ch0855810.1071/ch08558 ↗
34. 10.1039/b600771f10.1039/b600771f ↗
35. 10.1039/c7cp02722b10.1039/c7cp02722b ↗
36. 10.1002/adfm.20100079210.1002/adfm.201000792 ↗
37. 10.1016/j.apsusc.2016.01.25710.1016/j.apsusc.2016.01.257 ↗
38. 10.1021/cr500061m10.1021/cr500061m ↗
39. 10.1002/jrs.231410.1002/jrs.2314 ↗
40. 10.1021/la700707310.1021/la7007073 ↗
41. 10.1021/acs.langmuir.7b0202410.1021/acs.langmuir.7b02024 ↗
42. 10.1021/la049849+10.1021/la049849+ ↗
43. 10.1039/c9cp05900h10.1039/c9cp05900h ↗
44. 10.1063/1.274573310.1063/1.2745733 ↗
45. 10.1016/j.biomaterials.2018.11.01310.1016/j.biomaterials.2018.11.013 ↗
46. Johnson, K. L.; Johnson, K. L. Contact Mechanics; Cambridge University Press, 1987; p 452.
47. 10.1063/1.496050610.1063/1.4960506 ↗
48. 10.1021/jp503029d10.1021/jp503029d ↗
49. 10.1021/acs.langmuir.0c0194210.1021/acs.langmuir.0c01942 ↗
50. 10.1016/j.molliq.2022.11850610.1016/j.molliq.2022.118506 ↗