Hollow spheres self-assembled by MoO2 nanocones as highly sensitive substrate for Surface-Enhanced Raman Spectroscopy
Source abstract
Abstract
Surface-Enhanced Raman Spectroscopy attracts great interests for its ability to detect a variety of molecules at trace level. However, the commonly used noble metal substrates suffer from high cost, poor biocompatibility and inferior stability. Some oxides have the potential to substitute for noble metal and much effort has been made to improve their performance. In this paper, MoO2 nanocones were prepared and self-assembled into hollow spheres. The structure exhibits an enhancement factor (EF) of 3 × 107 and a limit of detection (LOD) of 10−9 M for Rhodamine 6G (R6G). This performance is among the best of all the oxides and is comparable to that of Au and Ag. The morphology control of hollow MoO2 sphere was also discussed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Advanced biosensing and bioanalysis techniques · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (61)
Show source-provided references
1. Raman spectra of pyridine adsorbed at a silver electrode10.1016/0009-2614(74)85388-1 ↗
2. Surface-enhanced Raman spectroscopy: concepts and chemical applications10.1002/anie.201205748 ↗
3. Probing single molecules and single nanoparticles by surface-enhanced Raman scattering10.1126/science.275.5303.1102 ↗
4. Surface-enhanced Raman scattering10.1039/a827241z ↗
5. Photodeposited metal-semiconductor nanocomposites and their applications10.1016/j.jmat.2018.01.004 ↗
6. Hierarchically structured 2D silver sheets with fractal network10.1016/j.jmat.2018.05.001 ↗
7. Electromagnetic theories of surface-enhanced Raman spectroscopy10.1039/C7CS00238F ↗
8. Expanding applications of SERS through versatile nanomaterials engineering10.1039/C7CS00207F ↗
9. Dual Z-scheme charge transfer in TiO2–Ag–Cu2O composite for enhanced photocatalytic hydrogen generation10.1016/j.jmat.2015.02.002 ↗
10. Investigating nanoscale electrochemistry with surface- and tip-enhanced Raman spectroscopy10.1021/acs.accounts.6b00327 ↗
11. The effect of dielectric constants on noble metal/semiconductor SERS enhancement: FDTD simulation and experiment validation of Ag/Ge and Ag/Si substrates
12. Copper nanostructures for chemical analysis using surface-enhanced Raman spectroscopy10.1016/j.trac.2018.09.004 ↗
13. Design of a silver nanoparticle for sensitive surface enhanced Raman spectroscopy detection of carmine dye10.1016/j.foodchem.2017.06.057 ↗
14. Fabrication of flower-like silver nanostructures for rapid detection of caffeine using surface enhanced Raman spectroscopy10.1016/j.snb.2016.03.045 ↗
15. Label-free surface-enhanced Raman spectroscopy for sensitive DNA detection by DNA-mediated silver nanoparticle growth10.1021/ac4032109 ↗
16. Hierarchical porous plasmonic metamaterials for reproducible ultrasensitive surface-enhanced Raman spectroscopy10.1002/adma.201404107 ↗
17. Surface enhanced Raman spectroscopy of individual rhodamine 6G molecules on large Ag nanocrystals10.1021/ja992128q ↗
18. Multifunctional gold nanorods with ultrahigh stability and tunability for in vivo fluorescence imaging, SERS detection, and photodynamic therapy10.1002/anie.201207909 ↗
19. Hierarchical porous plasmonic metamaterials for reproducible ultrasensitive surface-enhanced Raman spectroscopy10.1002/adma.201404107 ↗
20. SERS detection of small inorganic molecules and ions10.1002/anie.201204438 ↗
21. Large format surface-enhanced Raman spectroscopy substrate optimized for enhancement and uniformity10.1021/acsnano.6b02564 ↗
22. Ultrasensitive SERS detection by defect engineering on single Cu2O superstructure particle10.1002/adma.201604797 ↗
23. Freestanding palladium nanosheets with plasmonic and catalytic properties10.1038/nnano.2010.235 ↗
24. Materials science. Low-loss plasmonic metamaterials10.1126/science.1198258 ↗
25. Plasmonic colloidosomes as three-dimensional SERS platforms with enhanced surface area for multiphase sub-microliter toxin sensing10.1002/anie.201504027 ↗
26. Enhanced Raman scattering with dielectrics10.1021/acs.chemrev.6b00365 ↗
27. Surface-enhanced Raman scattering of 4-mercaptopyridine on sub-monolayers of α-Fe2O3nanocrystals (sphere, spindle, cube)10.1002/jrs.2281 ↗
28. Chiral carbonaceous nanotubes modified with titania nanocrystals: plasmon-free and recyclable SERS sensitivity10.1002/anie.201505319 ↗
29. Metal nanoparticles influence on light absorbed power of thin-film solar cell with periodic structure10.1016/j.ijleo.2012.06.022 ↗
30. Surface-enhanced Raman scattering spectra of adsorbates on Cu2O nanospheres: charge-transfer and electromagnetic enhancement10.1039/c3nr33502j ↗
31. Simple combustion synthesis, structural, morphological, optical and catalytic properties of ZnO nanoparticles10.1166/jnn.2019.16141 ↗
32. Nanofilm of ZnO nanocrystals/carbon nanotubes as biocompatible layer for enzymatic biosensors in capacitive field-effect devices10.1007/s10853-017-1369-y ↗
33. Direct observation of surface-enhanced Raman scattering in ZnO nanocrystals10.1002/jrs.2241 ↗
34. One-step electrospun SnO2/MOx heterostructured nanomaterials for highly selective gas sensor array integration10.1016/j.snb.2018.12.097 ↗
35. Metal oxide semiconductor SERS-active substrates by defect engineering10.1039/C6AN01959E ↗
36. Solid-phase synthesis of atomically thin two-dimensional non-layered MoO2 nanosheets for surface enhanced Raman spectroscopy10.1039/C9TC01447K ↗
37. Ultrathin molybdenum dioxide nanosheets as uniform and reusable surface-enhanced Raman spectroscopy substrates with high sensitivity10.1002/smll.201802276 ↗
38. Phase-controlled synthesis of molybdenum oxide nanoparticles for surface enhanced Raman scattering and photothermal therapy10.1039/C8NR00413G ↗
39. Plasmonic MoO2 nanospheres as a highly sensitive and stable non-noble metal substrate for multi-component surface-enhanced Raman analysis10.1021/acs.analchem.7b03385 ↗
40. A metallic molybdenum dioxide with high stability for surface enhanced Raman spectroscopy
41. Surface-enhanced Raman spectroscopy: substrate-related issues10.1007/s00216-009-2761-5 ↗
42. Electrochemical synthesis of amorphous VO2 colloids and their rapid thermal transforming to VO2 (M) nanoparticles with good thermochromic performance10.1002/chem.201604101 ↗
43. One-pot hydrothermal synthesized MoO2 with high reversible capacity for anode application in lithium ion battery10.1016/j.electacta.2013.03.195 ↗
44. Modifications of the CZTSe/Mo back-contact interface by plasma treatments10.1039/C9RA02847A ↗
45. Quantification of anionic redox chemistry in a prototype Na-rich layered oxide10.1021/acsami.9b19204 ↗
46. Molecular precursor method for fabricating p-type Cu2O and metallic Cu thin films
47. Vertically aligned VS2 on graphene as a 3D heteroarchitectured anode material with capacitance-dominated lithium storage10.1039/C9TA13835H ↗
48. Crystallization and purification of 4, 4'-diaminodiphenyl ether10.1002/ceat.201900519 ↗
49. Effects of biochar size and type on gaseous emissions during pig manure/wheat straw aerobic composting: insights into multivariate-microscale characterization and microbial mechanism10.1016/j.biortech.2018.09.104 ↗
50. Scalable synthesis of Ti-doped MoO2 nanoparticle-hole-transporting-material with high moisture stability for CH3NH3PbI3 perovskite solar cells10.1016/j.cej.2017.07.160 ↗
51. Electrochemical performances of MoO2/C nanocomposite for sodium ion storage: an insight into rate dependent charge/discharge mechanism10.1016/j.electacta.2017.04.103 ↗
52. 3D hierarchical carbon microflowers decorated with MoO2 nanoparticles for lithium ion batteries10.1016/j.electacta.2017.08.066 ↗
53. Tunable plasmon resonance of molybdenum oxide nanoparticles synthesized in non-aqueous media10.1039/C7CC08090E ↗
54. Uniform MoO2@carbon hollow nanospheres with superior lithium-ion storage properties10.1039/C4TA04373A ↗
55. Anchoring hollow MoO2 spheres on graphene for superior lithium storage10.1016/j.cej.2017.10.009 ↗
56. Broadband light management using low-Q whispering gallery modes in spherical nanoshells10.1038/ncomms1664 ↗
57. Self-assembled hollow nanosphere arrays used as low Q whispering gallery mode resonators on thin film solar cells for light trapping10.1039/c3cp53162g ↗
58. Kneipp · 2006 · vol. 103
59. Noble metal-comparable SERS enhancement from semiconducting metal oxides by making oxygen vacancies10.1038/ncomms8800 ↗
60. Ultrasensitive SERS detection by defect engineering on single Cu2O superstructure particle10.1002/adma.201604797 ↗
61. Phase-controlled synthesis of molybdenum oxide nanoparticles for surface enhanced Raman scattering and photothermal therapy10.1039/C8NR00413G ↗