Construction of Function‐Oriented Core–Shell Nanostructures in Hydrogen‐Bonded Organic Frameworks for Near‐Infrared‐Responsive Bacterial Inhibition

Exploration of effective ways to integrate various functional species into hydrogen‐bonded organic frameworks (HOFs) is critically important for their applications but highly challenging. In this study, according to the “bottle‐around‐ship” strategy, core–shell heterostructure of upconversion nanopa...

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Bibliographic Details
Published in:Angewandte Chemie International Edition Vol. 60; no. 49; pp. 25701 - 25707
Main Authors: Liu, Bai‐Tong, Pan, Xiao‐Hong, Zhang, Ding‐Yang, Wang, Rui, Chen, Jun‐Yu, Fang, Han‐Ru, Liu, Tian‐Fu
Format: Journal Article
Language:English
Published: Germany Wiley Subscription Services, Inc 01.12.2021
Edition:International ed. in English
Subjects:
Anti-Bacterial Agents - chemical synthesis
Anti-Bacterial Agents - chemistry
Anti-Bacterial Agents - pharmacology
antimicrobials
Composite materials
Core-shell structure
core–shell composite
E coli
Energy transfer
Escherichia coli - drug effects
Heterostructures
Hydrogen Bonding
I.R. radiation
Imides - chemical synthesis
Imides - chemistry
Imides - pharmacology
Infrared Rays
Irradiation
Microbial Sensitivity Tests
Nanocomposites
Nanoparticles
Nanostructures - chemistry
Near infrared radiation
Particle Size
Perylene - analogs & derivatives
Perylene - chemical synthesis
Perylene - chemistry
Perylene - pharmacology
photodynamic
Photoresponse
Photosensitizing Agents - chemical synthesis
Photosensitizing Agents - chemistry
Photosensitizing Agents - pharmacology
photothermal
Porosity
resonance energy transfer
Surface Properties
photothermal
resonance energy transfer
antimicrobials
photodynamic
core-shell composite
ISSN:1433-7851, 1521-3773, 1521-3773
Online Access:Get full text
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Summary:Exploration of effective ways to integrate various functional species into hydrogen‐bonded organic frameworks (HOFs) is critically important for their applications but highly challenging. In this study, according to the “bottle‐around‐ship” strategy, core–shell heterostructure of upconversion nanoparticles (UCNPs) and HOFs was fabricated for the first time via a ligand‐grafting stepwise method. The UCNPs “core” can effectively upconvert near‐infrared (NIR) irradiation (980 nm) into visible light (540 nm and 653 nm), which further excites the perylenediimide‐based HOF “shell” through resonance energy transfer. In this way, the nanocomposite inherits the high porosity, excellent photothermal and photodynamic efficiency, NIR photoresponse from two parent materials, achieving intriguing NIR‐responsive bacterial inhibition toward Escherichia coli. This study may shed light on the design of functional HOF‐based composite materials, not only enriching the HOF library but also broadening the horizon of their potential applications. In this study, core–shell heterostructures of upconversion nanoparticles (UCNPs) and hydrogen‐bonded organic frameworks (HOFs) were fabricated via a stepwise ligand‐grafting method. The UCNP “core” can effectively upconvert near‐infrared (NIR) irradiation into visible ranges, which can further excite the HOF “shell” to achieve near‐infrared‐responsive photothermal and photodynamic bacterial inhibition.
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ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.202110028