Local generation of hydrogen for enhanced photothermal therapy. Issue 1 (December 2018)

• Record Type: Journal Article
• Authors: Zhao, Penghe; Jin, Zhaokui; Chen, Qian; Yang, Tian; Chen, Danyang; Meng, Jin; Lu, Xifeng; Gu, Zhen; He, Qianjun
• Is Part Of: Nature communications. Volume 9:Issue 1(2018)
• Page Start: 1
• Page End: 12
• Publication Date: 2018-12
• Subjects: Biology -- Periodicals; Physical sciences -- Periodicals; 505
• DOI: 10.1038/s41467-018-06630-2
• Languages: English
• ISSNs: 2041-1723

Abstract

Abstract By delivering the concept of clean hydrogen energy and green catalysis to the biomedical field, engineering of hydrogen-generating nanomaterials for treatment of major diseases holds great promise. Leveraging virtue of versatile abilities of Pd hydride nanomaterials in high/stable hydrogen storage, self-catalytic hydrogenation, near-infrared (NIR) light absorption and photothermal conversion, here we utilize the cubic PdH0.2 nanocrystals for tumour-targeted and photoacoustic imaging (PAI)-guided hydrogenothermal therapy of cancer. The synthesized PdH0.2 nanocrystals have exhibited high intratumoural accumulation capability, clear NIR-controlled hydrogen release behaviours, NIR-enhanced self-catalysis bio-reductivity, high NIR-photothermal effect and PAI performance. With these unique properties of PdH0.2 nanocrystals, synergetic hydrogenothermal therapy with limited systematic toxicity has been achieved by tumour-targeted delivery and PAI-guided NIR-controlled release of bio-reductive hydrogen as well as generation of heat. This hydrogenothermal approach has presented a cancer-selective strategy for synergistic cancer treatment. The tracking and targeted release of multi-agents to cooperatively treat cancer is a developing and evolving field. Here, the authors demonstrate the anticancer effects of cubic Pd hydride nanocrystals with photoacoustic imaging properties that can release hydrogen under an NIR trigger and have photothermal effects.