CAS OpenIR
Excellent Trace Detection of Proteins on TiO2 Nanotube Substrates through Novel Topography Optimization
Dong, Yihui1,2; Wu, Na1; Ji, Xiaoyan3; Laaksonen, Aatto1,3,4,5; Lu, Xiaohua1; Zhang, Suojiang2
2020-12-17
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume124Issue:50Pages:27790-27800
AbstractFor improving the surface-enhanced Raman scattering (SERS) performance of nanomaterials to achieve trace detection of proteins and complex biological systems, structural and topographical control is one of the important strategies. In this work, a facial and effective method to optimize the topography of TiO2 nanotube arrays (TNAs) is demonstrated, together with a significant enhancement of the SERS performance of cytochrome C (Cyt C) on TNAs. An enhancement factor (EF) up to 10(4), which is obtained with the newly developed method on the basis of the quantification of atomic force microscopy (AFM)-measured interaction force, is achieved, corresponding to a superior detection limit of Cyt C down to 10(-7) M. The main reason is that adjusting the fluoride contents in an electrolyte (from 0.4 to 0.1 wt %) can reduce the content and sizes of cracks, as well as the tube ruptures of TNAs, where the fluoride content at 0.2 wt % can successfully provide the excellent and optimized topography of TNAs. The TNAs with the optimized topography, especially those with larger tube diameters, demonstrated the importance of structural integrity on a remarkably excellent SERS performance in the trace detection of proteins. The proposed method will stimulate the development and optimization of the active substrate on the SERS applications in biology, bioanalysis, and nanoscience.
DOI10.1021/acs.jpcc.0c08793
Language英语
WOS KeywordENHANCED RAMAN-SCATTERING ; SERS ; ARRAYS ; NANOPARTICLES ; SPECTROSCOPY ; AMPLIFICATION ; NANOMATERIALS ; SENSITIVITY ; DEPENDENCE ; MOLECULES
Funding ProjectNational Natural Science Foundation of China[21838004] ; Swedish Science Council ; Ministry of Research and Innovation of Romania (CNCS.UEFISCDI within PNCDI III)[PN-III-P4-ID-PCCF-2016-0050]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Swedish Science Council ; Ministry of Research and Innovation of Romania (CNCS.UEFISCDI within PNCDI III)
WOS IDWOS:000608876900054
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43292
Collection中国科学院过程工程研究所
Corresponding AuthorLu, Xiaohua; Zhang, Suojiang
Affiliation1.Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,State Key Lab Multi, Beijing 100190, Peoples R China
3.Lulea Univ Technol, Energy Engn, Div Energy Sci, S-97187 Lulea, Sweden
4.Stockholm Univ, Dept Mat & Environm Chem, Arrhenius Lab, SE-10691 Stockholm, Sweden
5.Petru Poni Inst Macromol Chem, Ctr Adv Res Bionanoconjugates & Biopolymers, Iasi 700487, Romania
Recommended Citation
GB/T 7714
Dong, Yihui,Wu, Na,Ji, Xiaoyan,et al. Excellent Trace Detection of Proteins on TiO2 Nanotube Substrates through Novel Topography Optimization[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2020,124(50):27790-27800.
APA Dong, Yihui,Wu, Na,Ji, Xiaoyan,Laaksonen, Aatto,Lu, Xiaohua,&Zhang, Suojiang.(2020).Excellent Trace Detection of Proteins on TiO2 Nanotube Substrates through Novel Topography Optimization.JOURNAL OF PHYSICAL CHEMISTRY C,124(50),27790-27800.
MLA Dong, Yihui,et al."Excellent Trace Detection of Proteins on TiO2 Nanotube Substrates through Novel Topography Optimization".JOURNAL OF PHYSICAL CHEMISTRY C 124.50(2020):27790-27800.
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