A long-lived photoluminescent silver nanocluster-infused silver terephthalate metal organic framework with antibacterial and biofilm inhibition activity: a high functional resource

Functional materials with long-lived luminescence are extremely valuable due to their vast assortment of applications in optical devices, especially in bioimaging, sensors, security systems and other applications. A long-lived photoluminescent silver nanocluster-infused silver terephthalate metal or...

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2023-06, Vol.11 (23), p.7772-7781
Main Authors: George, Liz Hannah, Prathapan, Sreedharan, Manoj, Narayanapillai, Rathinam, Prasanth, Aadithya, Salbi, Sailaja, G. S
Format: Article
Language:English
Subjects:
Aqueous solutions
Biofilms
Functional materials
Hydrogels
Medical imaging
Metal-organic frameworks
Nanoclusters
Nanocomposites
Percolation
Photoluminescence
Polycaprolactone
Polymethyl methacrylate
Polyvinyl alcohol
Room temperature
Security systems
Silver
Terephthalate
Terephthalic acid
Thin film coatings
Thin films
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Summary:Functional materials with long-lived luminescence are extremely valuable due to their vast assortment of applications in optical devices, especially in bioimaging, sensors, security systems and other applications. A long-lived photoluminescent silver nanocluster-infused silver terephthalate metal organic framework (MOF) exhibiting green emission with a longer luminescent lifetime of 3.91 ms (ATP) was developed by a very facile and environmentally friendly method (room temperature, aqueous medium). The long-range array of silver nanoclusters deciphered from HRTEM and STEM images, both as embedded and as percolating out of the silver terephthalate MOF structure together with terephthalic acid ligand, primarily contributes to the longer lifetime of ATP. More interestingly, ATP is very photostable (for several months), which brings forward the scope of several customizable luminescent nanocomposite materials: films, hydrogels, thin film coatings, etc. Model systems were formulated to validate the luminescent property and customizability using base matrices poly(methyl methacrylate) (PMMA), polyvinyl alcohol and polycaprolactone. The intrinsic antibacterial and biofilm inhibition property of ATP befits it for antibacterial applications. Long lived (3.91 ms) photoluminescent green emitting silver terephthalate MOF infused with silver nanoclusters and functional materials derived from it (photoluminescent films and hydrogel) are presented.
ISSN:2050-7526
2050-7534
DOI:10.1039/d3tc01033c