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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
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷号505页码:467-475
摘要We 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.
文章类型Article
关键词Sers Hotspots Au Nanoparticles Stimuli-responsive Hydrogel Microfluidic
WOS标题词Science & Technology ; Physical Sciences
资助者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) ; 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
关键词[WOS]AG HETEROGENEOUS NANORODS ; SERS HOT-SPOTS ; GOLD NANOPARTICLES ; ARRAYS ; ROUTE ; LEVEL ; STATE ; FILM ; GAPS
收录类别SCI
语种英语
资助者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) ; 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研究方向Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000410464100051
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33676
专题中科院固体物理研究所
作者单位1.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
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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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