Core-Shell Gold Nanorod@Zirconium-Based Metal-Organic Framework Composites as in Situ Size-Selective Raman Probes

Johannes W.M. Osterrieth, Demelza Wright, Hyunho Noh, Chung-Wei Kung, Diana Vulpe, Aurelia Li, Ji Eun Park, Richard P. Van Duyne, Peyman Z. Moghadam, Jeremy J. Baumberg, Omar K. Farha, David Fairen-Jimenez

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Nanoparticle encapsulation inside zirconium-based metal-organic frameworks (NP@MOF) is hard to control, and the resulting materials often have nonuniform morphologies with NPs on the external surface of MOFs and NP aggregates inside the MOFs. In this work, we report the controlled encapsulation of gold nanorods (AuNRs) by a scu-topology Zr-MOF, via a room-temperature MOF assembly. This is achieved by functionalizing the AuNRs with poly(ethylene glycol) surface ligands, allowing them to retain colloidal stability in the precursor solution and to seed the MOF growth. Using this approach, we achieve core-shell yields exceeding 99%, tuning the MOF particle size via the solution concentration of AuNRs. The functionality of AuNR@MOFs is demonstrated by using the AuNRs as embedded probes for selective surface-enhanced Raman spectroscopy (SERS). The AuNR@MOFs are able to both take-up or block molecules from the pores, thereby facilitating highly selective sensing at the AuNR ends. This proof-of-principle study serves to present both the outstanding level of control in the synthesis and the high potential for AuNR@Zr-MOF composites for SERS.

Original languageEnglish
Pages (from-to)3893-3900
Number of pages8
JournalJournal of the American Chemical Society
Volume141
Issue number9
DOIs
Publication statusPublished - 2019 Mar 6

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Nanotubes
Raman Spectrum Analysis
Nanorods
Zirconium
Gold
Metals
Ethylene Glycol
Composite materials
Encapsulation
Particle Size
Nanoparticles
Raman spectroscopy
Seeds
Ligands
Temperature
Growth
Polyethylene glycols
Seed
Tuning
Particle size

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Osterrieth, Johannes W.M. ; Wright, Demelza ; Noh, Hyunho ; Kung, Chung-Wei ; Vulpe, Diana ; Li, Aurelia ; Park, Ji Eun ; Van Duyne, Richard P. ; Moghadam, Peyman Z. ; Baumberg, Jeremy J. ; Farha, Omar K. ; Fairen-Jimenez, David. / Core-Shell Gold Nanorod@Zirconium-Based Metal-Organic Framework Composites as in Situ Size-Selective Raman Probes. In: Journal of the American Chemical Society. 2019 ; Vol. 141, No. 9. pp. 3893-3900.
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abstract = "Nanoparticle encapsulation inside zirconium-based metal-organic frameworks (NP@MOF) is hard to control, and the resulting materials often have nonuniform morphologies with NPs on the external surface of MOFs and NP aggregates inside the MOFs. In this work, we report the controlled encapsulation of gold nanorods (AuNRs) by a scu-topology Zr-MOF, via a room-temperature MOF assembly. This is achieved by functionalizing the AuNRs with poly(ethylene glycol) surface ligands, allowing them to retain colloidal stability in the precursor solution and to seed the MOF growth. Using this approach, we achieve core-shell yields exceeding 99{\%}, tuning the MOF particle size via the solution concentration of AuNRs. The functionality of AuNR@MOFs is demonstrated by using the AuNRs as embedded probes for selective surface-enhanced Raman spectroscopy (SERS). The AuNR@MOFs are able to both take-up or block molecules from the pores, thereby facilitating highly selective sensing at the AuNR ends. This proof-of-principle study serves to present both the outstanding level of control in the synthesis and the high potential for AuNR@Zr-MOF composites for SERS.",
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Osterrieth, JWM, Wright, D, Noh, H, Kung, C-W, Vulpe, D, Li, A, Park, JE, Van Duyne, RP, Moghadam, PZ, Baumberg, JJ, Farha, OK & Fairen-Jimenez, D 2019, 'Core-Shell Gold Nanorod@Zirconium-Based Metal-Organic Framework Composites as in Situ Size-Selective Raman Probes', Journal of the American Chemical Society, vol. 141, no. 9, pp. 3893-3900. https://doi.org/10.1021/jacs.8b11300

Core-Shell Gold Nanorod@Zirconium-Based Metal-Organic Framework Composites as in Situ Size-Selective Raman Probes. / Osterrieth, Johannes W.M.; Wright, Demelza; Noh, Hyunho; Kung, Chung-Wei; Vulpe, Diana; Li, Aurelia; Park, Ji Eun; Van Duyne, Richard P.; Moghadam, Peyman Z.; Baumberg, Jeremy J.; Farha, Omar K.; Fairen-Jimenez, David.

In: Journal of the American Chemical Society, Vol. 141, No. 9, 06.03.2019, p. 3893-3900.

Research output: Contribution to journalArticle

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T1 - Core-Shell Gold Nanorod@Zirconium-Based Metal-Organic Framework Composites as in Situ Size-Selective Raman Probes

AU - Osterrieth, Johannes W.M.

AU - Wright, Demelza

AU - Noh, Hyunho

AU - Kung, Chung-Wei

AU - Vulpe, Diana

AU - Li, Aurelia

AU - Park, Ji Eun

AU - Van Duyne, Richard P.

AU - Moghadam, Peyman Z.

AU - Baumberg, Jeremy J.

AU - Farha, Omar K.

AU - Fairen-Jimenez, David

PY - 2019/3/6

Y1 - 2019/3/6

N2 - Nanoparticle encapsulation inside zirconium-based metal-organic frameworks (NP@MOF) is hard to control, and the resulting materials often have nonuniform morphologies with NPs on the external surface of MOFs and NP aggregates inside the MOFs. In this work, we report the controlled encapsulation of gold nanorods (AuNRs) by a scu-topology Zr-MOF, via a room-temperature MOF assembly. This is achieved by functionalizing the AuNRs with poly(ethylene glycol) surface ligands, allowing them to retain colloidal stability in the precursor solution and to seed the MOF growth. Using this approach, we achieve core-shell yields exceeding 99%, tuning the MOF particle size via the solution concentration of AuNRs. The functionality of AuNR@MOFs is demonstrated by using the AuNRs as embedded probes for selective surface-enhanced Raman spectroscopy (SERS). The AuNR@MOFs are able to both take-up or block molecules from the pores, thereby facilitating highly selective sensing at the AuNR ends. This proof-of-principle study serves to present both the outstanding level of control in the synthesis and the high potential for AuNR@Zr-MOF composites for SERS.

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