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

Bo Tian, Chiranjeevi Korupalli, Dehui Wan, Hsing-Wen Sung, Ming-Yen Lu, Qinghua Cui, Wei-Lin Wan, Yen Chang, Yu-Jung Lin

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DOI: 10.1038/s41467-020-14413-x DOI is the universal ID for this study.

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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.

Publish Year 2020
Country China
Rank Positive
Journal Nature Communications
Primary Topic Whole Body
Secondary TopicROS-Scavenging
Model Cell Culture
Tertiary TopicNovel Therapy
Vehicle Gas (Sustained Release)
pH N/A
Application Implantation