Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks

Hui Zhao, Soumyo Sen, T. Udayabhaskararao, Michal Sawczyk, Kristina Kucanda, Debasish Manna, Pintu K. Kundu, Ji Woong Lee, Petr Král, Rafal Klajn

Research output: Contribution to journalArticle

115 Citations (Scopus)

Abstract

The chemical behaviour of molecules can be significantly modified by confinement to volumes comparable to the dimensions of the molecules. Although such confined spaces can be found in various nanostructured materials, such as zeolites, nanoporous organic frameworks and colloidal nanocrystal assemblies, the slow diffusion of molecules in and out of these materials has greatly hampered studying the effect of confinement on their physicochemical properties. Here, we show that this diffusion limitation can be overcome by reversibly creating and destroying confined environments by means of ultraviolet and visible light irradiation. We use colloidal nanocrystals functionalized with light-responsive ligands that readily self-assemble and trap various molecules from the surrounding bulk solution. Once trapped, these molecules can undergo chemical reactions with increased rates and with stereoselectivities significantly different from those in bulk solution. Illumination with visible light disassembles these nanoflasks, releasing the product in solution and thereby establishes a catalytic cycle. These dynamic nanoflasks can be useful for studying chemical reactivities in confined environments and for synthesizing molecules that are otherwise hard to achieve in bulk solution.

Original languageEnglish
Pages (from-to)82-88
Number of pages7
JournalNature Nanotechnology
Volume11
Issue number1
DOIs
Publication statusPublished - Jan 1 2016

Fingerprint

assembling
trapping
Molecules
molecules
Nanocrystals
nanocrystals
Zeolites
Stereoselectivity
Chemical reactivity
releasing
Nanostructured materials
zeolites
ultraviolet radiation
assemblies
Chemical reactions
chemical reactions
reactivity
Lighting
illumination
Ligands

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering
  • Materials Science(all)
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks. / Zhao, Hui; Sen, Soumyo; Udayabhaskararao, T.; Sawczyk, Michal; Kucanda, Kristina; Manna, Debasish; Kundu, Pintu K.; Lee, Ji Woong; Král, Petr; Klajn, Rafal.

In: Nature Nanotechnology, Vol. 11, No. 1, 01.01.2016, p. 82-88.

Research output: Contribution to journalArticle

Zhao, H, Sen, S, Udayabhaskararao, T, Sawczyk, M, Kucanda, K, Manna, D, Kundu, PK, Lee, JW, Král, P & Klajn, R 2016, 'Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks', Nature Nanotechnology, vol. 11, no. 1, pp. 82-88. https://doi.org/10.1038/nnano.2015.256
Zhao H, Sen S, Udayabhaskararao T, Sawczyk M, Kucanda K, Manna D et al. Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks. Nature Nanotechnology. 2016 Jan 1;11(1):82-88. https://doi.org/10.1038/nnano.2015.256
Zhao, Hui ; Sen, Soumyo ; Udayabhaskararao, T. ; Sawczyk, Michal ; Kucanda, Kristina ; Manna, Debasish ; Kundu, Pintu K. ; Lee, Ji Woong ; Král, Petr ; Klajn, Rafal. / Reversible trapping and reaction acceleration within dynamically self-assembling nanoflasks. In: Nature Nanotechnology. 2016 ; Vol. 11, No. 1. pp. 82-88.
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