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Surface enhanced Raman scattering properties of dynamically tunable nanogaps between Au nanoparticles self-assembled on hydrogel microspheres controlled by pH
Li, Huilin1,2; Men, Dandan1; Sun, Yiqiang1,2; Liu, Dilong1; Li, Xinyang1; Li, Liangbin2; Li, Cuncheng3; Cai, Weiping1; Li, Yue1
2017-11-01
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume505Pages:467-475
AbstractWe developed an interesting route for preparing a poly (acrylamide-co-acrylic acid) (P(AAm-co-AA)) hydrogel microsphere with a coating of Au nanospheres (hydrogel microsphere @ Au nanospheres) through self-assembly based on electrostatic interaction. The fabricated composites could be used as highly sensitive enhanced Raman scattering substrates. The nanogaps between adjacent Au nanospheres were dynamically tuned by volume changes in the hydrogel microspheres in the semiwet state under different pH conditions. At pH 6, the hydrogel microsphere @ Au nanospheres demonstrated highly sensitive SERS with an enhancement factor of 10(9). The product could detect very low concentrations of analytes up to 10(-12) M 4-aminothiophenol (4-ATP) molecules. This paper proposes a new method for detecting trace amounts of environmental organic pollutants by dynamically tuning the SERS enhancement in the semi wet testing state. (C) 2017 Elsevier Inc. All rights reserved.
SubtypeArticle
KeywordSers Hotspots Au Nanoparticles Stimuli-responsive Hydrogel Microfluidic
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNatural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; State Key Program of National Natural Science Foundation of China(51531006) ; State Key Program of National Natural Science Foundation of China(51531006) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; CAS-SAFEA International Partnership Program for Creative Research Teams ; CAS-SAFEA International Partnership Program for Creative Research Teams ; 51571189) ; 51571189) ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; State Key Program of National Natural Science Foundation of China(51531006) ; State Key Program of National Natural Science Foundation of China(51531006) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; CAS-SAFEA International Partnership Program for Creative Research Teams ; CAS-SAFEA International Partnership Program for Creative Research Teams ; 51571189) ; 51571189)
DOI10.1016/j.jcis.2017.06.034
WOS KeywordAG HETEROGENEOUS NANORODS ; SERS HOT-SPOTS ; GOLD NANOPARTICLES ; ARRAYS ; ROUTE ; LEVEL ; STATE ; FILM ; GAPS
Indexed BySCI
Language英语
Funding OrganizationNatural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; State Key Program of National Natural Science Foundation of China(51531006) ; State Key Program of National Natural Science Foundation of China(51531006) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; CAS-SAFEA International Partnership Program for Creative Research Teams ; CAS-SAFEA International Partnership Program for Creative Research Teams ; 51571189) ; 51571189) ; Natural Science Foundation of China(51371165 ; Natural Science Foundation of China(51371165 ; State Key Program of National Natural Science Foundation of China(51531006) ; State Key Program of National Natural Science Foundation of China(51531006) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Anhui Provincial Natural Science Foundation(1508085JGD07) ; Cross-disciplinary Collaborative Teams Program in CAS ; Cross-disciplinary Collaborative Teams Program in CAS ; CAS-SAFEA International Partnership Program for Creative Research Teams ; CAS-SAFEA International Partnership Program for Creative Research Teams ; 51571189) ; 51571189)
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000410464100051
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33676
Collection中科院固体物理研究所
Affiliation1.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Li, Huilin,Men, Dandan,Sun, Yiqiang,et al. Surface enhanced Raman scattering properties of dynamically tunable nanogaps between Au nanoparticles self-assembled on hydrogel microspheres controlled by pH[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,505:467-475.
APA Li, Huilin.,Men, Dandan.,Sun, Yiqiang.,Liu, Dilong.,Li, Xinyang.,...&Li, Yue.(2017).Surface enhanced Raman scattering properties of dynamically tunable nanogaps between Au nanoparticles self-assembled on hydrogel microspheres controlled by pH.JOURNAL OF COLLOID AND INTERFACE SCIENCE,505,467-475.
MLA Li, Huilin,et al."Surface enhanced Raman scattering properties of dynamically tunable nanogaps between Au nanoparticles self-assembled on hydrogel microspheres controlled by pH".JOURNAL OF COLLOID AND INTERFACE SCIENCE 505(2017):467-475.
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