Versatile Surface Functionalization of Metal–Organic Frameworks through Direct Metal Coordination with a Phenolic Lipid Enables Diverse Applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

17 Scopus Citations
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Author(s)

  • Wei Zhu
  • Guolei Xiang
  • Jimin Guo
  • Benyamin Motevalli
  • Paul Durfee
  • Jacob Ongudi Agola
  • Eric N. Coker
  • C. Jeffrey Brinker

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number1705274
Journal / PublicationAdvanced Functional Materials
Volume28
Issue number16
Online published22 Feb 2018
Publication statusPublished - 18 Apr 2018

Abstract

A novel strategy for the versatile functionalization of the external surface of metal-organic frameworks (MOFs) has been developed based on the direct coordination of a phenolic-inspired lipid molecule DPGG (1,2-dipalmitoyl-sn-glycero-3-galloyl) with metal nodes/sites surrounding MOF surface. X-ray diffraction and Argon sorption analysis prove that the modified MOF particles retain their structural integrity and porosity after surface modification. Density functional theory calculations reveal that strong chelation strength between the metal sites and the galloyl head group of DPGG is the basic prerequisite for successful coating. Due to the pH-responsive nature of metal-phenol complexation, the modification process is reversible by simple washing in weak acidic water, showing an excellent regeneration ability for water-stable MOFs. Moreover, the colloidal stability of the modified MOFs in the nonpolar solvent allows them to be further organized into 2 dimensional MOF or MOF/polymer monolayers by evaporation-induced interfacial assembly conducted on an air/water interface. Finally, the easy fusion of a second functional layer onto DPGG-modified MOF cores, enabled a series of MOF-based functional nanoarchitectures, such as MOFs encapsulated within hybrid supported lipid bilayers (so-called protocells), polyhedral core-shell structures, hybrid lipid-modified-plasmonic vesicles and multicomponent supraparticles with target functionalities, to be generated. for a wide range of applications.

Research Area(s)

  • bioapplication, interfacial assembly, metal–organic frameworks, metal–phenolic coordination, surface functionalization

Citation Format(s)

Versatile Surface Functionalization of Metal–Organic Frameworks through Direct Metal Coordination with a Phenolic Lipid Enables Diverse Applications. / Zhu, Wei; Xiang, Guolei; Shang, Jin; Guo, Jimin; Motevalli, Benyamin; Durfee, Paul; Agola, Jacob Ongudi; Coker, Eric N.; Brinker, C. Jeffrey.

In: Advanced Functional Materials, Vol. 28, No. 16, 1705274, 18.04.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal