Colloidal Polydopamine Beads: A Photothermally Active Support for Noble Metal Nanocatalysts.
Zixin WangWei WangMax WamsleyDongmao ZhangHui WangPublished in: ACS applied materials & interfaces (2022)
Polydopamine (PDA) is a unique bioinspired synthetic polymer that integrates broadband light absorption, efficient photothermal transduction, and versatile surface-adhesion functions in a single material entity. Here, we utilize colloidal PDA beads in the submicron particle size regime as an easily processable and photothermally active support for sub-10 nm Pd nanocatalysts to construct a multifunctional material system that allows us to kinetically boost thermal catalytic reactions through visible and near-infrared light illuminations. Choosing the Pd-catalyzed nitrophenol reduction by ammonium formate as a model transfer hydrogenation reaction exhibiting temperature-dependent reaction rates, we demonstrate that interfacial molecule-transforming processes on metal nanocatalyst surfaces can be kinetically modulated by harnessing the thermal energy produced through photothermal transduction in the PDA supports.
Keyphrases
- photodynamic therapy
- cancer therapy
- drug delivery
- electron transfer
- ionic liquid
- drug release
- biofilm formation
- perovskite solar cells
- magnetic nanoparticles
- room temperature
- big data
- molecular dynamics simulations
- high speed
- escherichia coli
- candida albicans
- artificial intelligence
- deep learning
- pseudomonas aeruginosa
- cell adhesion
- crystal structure