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Photosynthesis-inspired H2 generation using a chlorophyll-loaded liposomal nanoplatform to detect and scavenge excess ROS.

Abstract：

:A disturbance of reactive oxygen species (ROS) homeostasis may cause the pathogenesis of many diseases. Inspired by natural photosynthesis, this work proposes a photo-driven H2-evolving liposomal nanoplatform (Lip NP) that comprises an upconversion nanoparticle (UCNP) that is conjugated with gold nanoparticles (AuNPs) via a ROS-responsive linker, which is encapsulated inside the liposomal system in which the lipid bilayer embeds chlorophyll a (Chla). The UCNP functions as a transducer, converting NIR light into upconversion luminescence for simultaneous imaging and therapy in situ. Functioning as light-harvesting antennas, AuNPs are used to detect the local concentration of ROS for FRET biosensing, while the Chla activates the photosynthesis of H2 gas to scavenge local excess ROS. The results thus obtained indicate the potential of using the Lip NPs in the analysis of biological tissues, restoring their ROS homeostasis, possibly preventing the initiation and progression of diseases.

journal_name

Nat Commun

journal_title

Nature communications

authors

Wan WL,Tian B,Lin YJ,Korupalli C,Lu MY,Cui Q,Wan D,Chang Y,Sung HW

doi

10.1038/s41467-020-14413-x

subject

Has Abstract

pub_date

2020-01-27 00:00:00

pages

534

issue

1

issn

2041-1723

pii

10.1038/s41467-020-14413-x

journal_volume

11

pub_type

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