journal article·2019-06-28

Poly-Adenine-Engineered Gold Nanogaps for SERS Nanostructures

Jianlei Shen, Xiankai Jiang, Lifeng Xu, Zhilei Ge, Qian Li, Bo Song, Lihua Wang, Shiping Song

ACS Applied Nano Materials· Volume 2· Issue 6
Publisher page

Abstract

Surface-enhanced Raman scattering (SERS) effect, usually is associated with the highly confined electromagnetic field in plasmonic nanostructures, and has been widely investigated for molecular sensing and imaging applications. However, SERS substrates have confronted with poor reproducibility and inefficient nanometer-level structural control. By employing oligonucleotides, highly reproducible SERS substrates with uniform 1 nm nanogap could be constructed. In this work, we investigated the effect of oligonucleotides, especially the unmodified oligonucleotides, on the morphology of nanogaps. We found that the morphology of nanogap is dependent on the sequence, length, and surface-coating density of the unmodified oligonucleotide and speculate that the formation of nanogaps is dominated by stable self-assembled monolayers (SAMs) of unmodified oligonucleotides, which is supported by molecular dynamic simulation (MD) results. We further studied the morphologies of nanogaps, with oligonucleotide SAMs of different states and nanoseeds of different sizes and shapes. This work elucidated the relationships between the SAMs of unmodified oligonucleotides and the morphology of nanogaps, which will facilitate the design of reliable SERS nanostructures.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Advanced biosensing and bioanalysis techniques · Plasmonic and Surface Plasmon Research

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

Affiliations

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 201240, China

Division of Physical Biology & CAS Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

School of Mathematical Sciences and Chemical Engineering, Changzhou Institute of Technology, Changzhou 213032, China

Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China

Technology Innovation Research Institute, Shanghai Key Lab of Modern Optical System, Terahertz Science Cooperative Innovation Center, School of Optical-Electrical Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Chinese Academy of Sciences · K.C. Wong Education Foundation

References (51)

Show source-provided references
1. 10.1038/nchem.103210.1038/nchem.1032 ↗
2. 10.1002/adma.20070191810.1002/adma.200701918 ↗
3. 10.1126/science.119825810.1126/science.1198258 ↗
4. 10.1038/nmat216210.1038/nmat2162 ↗
5. 10.1021/ar700280410.1021/ar7002804 ↗
6. 10.1007/s11426-015-5488-510.1007/s11426-015-5488-5 ↗
7. 10.1007/s12274-009-9062-310.1007/s12274-009-9062-3 ↗
8. 10.1039/c4ra04046e10.1039/c4ra04046e ↗
9. 10.1038/srep0086710.1038/srep00867 ↗
10. 10.1002/anie.20100439810.1002/anie.201004398 ↗
11. 10.1002/adma.20120233110.1002/adma.201202331 ↗
12. 10.1002/smll.20070129510.1002/smll.200701295 ↗
13. 10.1021/nl103234210.1021/nl1032342 ↗
14. 10.1039/b905200n10.1039/b905200n ↗
15. 10.1039/C3NR05303B10.1039/C3NR05303B ↗
16. 10.1103/PhysRevB.83.08141210.1103/PhysRevB.83.081412 ↗
17. 10.1038/nnano.2011.7910.1038/nnano.2011.79 ↗
18. 10.1038/nmat259610.1038/nmat2596 ↗
19. 10.1007/s12274-014-0556-210.1007/s12274-014-0556-2 ↗
20. 10.1038/nature0890710.1038/nature08907 ↗
21. 10.1002/adma.20120341510.1002/adma.201203415 ↗
22. 10.1021/acs.nanolett.5b0293110.1021/acs.nanolett.5b02931 ↗
23. 10.1021/ja808664210.1021/ja8086642 ↗
24. 10.1103/PhysRevLett.78.166710.1103/PhysRevLett.78.1667 ↗
25. 10.1146/annurev.physchem.58.032806.10460710.1146/annurev.physchem.58.032806.104607 ↗
26. 10.1039/a827241z10.1039/a827241z ↗
27. 10.1021/nl504444w10.1021/nl504444w ↗
28. 10.1039/C4SC01792G10.1039/C4SC01792G ↗
29. 10.1038/nchem.102510.1038/nchem.1025 ↗
30. 10.1021/jp909492w10.1021/jp909492w ↗
31. 10.1021/cg060880e10.1021/cg060880e ↗
32. 10.1038/nnano.2007.46010.1038/nnano.2007.460 ↗
33. 10.1039/C2CS35347D10.1039/C2CS35347D ↗
34. 10.1021/ja035756n10.1021/ja035756n ↗
35. 10.1021/ja026535510.1021/ja0265355 ↗
36. 10.1021/ja506150s10.1021/ja506150s ↗
37. 10.1002/anie.20120371610.1002/anie.201203716 ↗
38. 10.1021/ja504270d10.1021/ja504270d ↗
39. 10.1021/nl502541u10.1021/nl502541u ↗
40. 10.1002/anie.20110518710.1002/anie.201105187 ↗
41. 10.1021/ja304118z10.1021/ja304118z ↗
42. 10.1002/anie.20140293710.1002/anie.201402937 ↗
43. 10.1073/pnas.98.3.82010.1073/pnas.98.3.820 ↗
44. 10.1021/la020242810.1021/la0202428 ↗
45. 10.1002/anie.20090188710.1002/anie.200901887 ↗
46. 10.1021/nn800726e10.1021/nn800726e ↗
47. 10.1002/adma.20120169010.1002/adma.201201690 ↗
48. 10.1063/1.488265710.1063/1.4882657 ↗
49. 10.1103/PhysRevB.52.1232910.1103/PhysRevB.52.12329 ↗
50. 10.1021/j100308a03810.1021/j100308a038 ↗
51. 10.1016/j.softx.2015.06.00110.1016/j.softx.2015.06.001 ↗