TY  - JOUR
A1  - Mei, Shilin
A1  - Kochovski, Zdravko
A1  - Roa, Rafael
A1  - Gu, Sasa
A1  - Xu, Xiaohui
A1  - Yu, Hongtao
A1  - Dzubiella, Joachim
A1  - Ballauff, Matthias
A1  - Lu, Yan
T1  - Enhanced Catalytic Activity of Gold@Polydopamine Nanoreactors with Multi-compartment Structure Under NIR Irradiation
JF  - Nano-Micro Letters
N2  - Photothermal conversion (PTC) nanostructures have great potential for applications in many fields, and therefore, they have attracted tremendous attention. However, the construction of a PTC nanoreactor with multi-compartment structure to achieve the combination of unique chemical properties and structural feature is still challenging due to the synthetic difficulties. Herein, we designed and synthesized a catalytically active, PTC gold (Au)@polydopamine (PDA) nanoreactor driven by infrared irradiation using assembled PS-b-P2VP nanosphere as soft template. The particles exhibit multi-compartment structure which is revealed by 3D electron tomography characterization technique. They feature permeable shells with tunable shell thickness. Full kinetics for the reduction reaction of 4-nitrophenol has been investigated using these particles as nanoreactors and compared with other reported systems. Notably, a remarkable acceleration of the catalytic reaction upon near-infrared irradiation is demonstrated, which reveals for the first time the importance of the synergistic effect of photothermal conversion and complex inner structure to the kinetics of the catalytic reduction. The ease of synthesis and fresh insights into catalysis will promote a new platform for novel nanoreactor studies.
KW  - Gold@polydopamine
KW  - 3D tomography
KW  - Nanoreactor
KW  - Catalysis
KW  - Photothermal conversion
Y1  - 2019
U6  - https://doi.org/10.1007/s40820-019-0314-9
SN  - 2311-6706
SN  - 2150-5551
VL  - 11
IS  - 1
PB  - Shanghai JIAO TONG univ press
CY  - Shanghai
ER  - 
TY  - JOUR
A1  - Mei, Shilin
A1  - Xu, Xiaohui
A1  - Priestley, Rodney D.
A1  - Lu, Yan
T1  - Polydopamine-based nanoreactors: synthesis and applications in bioscience and energy materials
JF  - Chemical science
N2  - Polydopamine (PDA)-based nanoreactors have shown exceptional promise as multifunctional materials due to their nanoscale dimensions and sub-microliter volumes for reactions of different systems. Biocompatibility, abundance of active sites, and excellent photothermal conversion have facilitated their extensive use in bioscience and energy storage/conversion. This minireview summarizes recent advances in PDA-based nanoreactors, as applied to the abovementioned fields. We first highlight the design and synthesis of functional PDA-based nanoreactors with structural and compositional diversity. Special emphasis in bioscience has been given to drug/protein delivery, photothermal therapy, and antibacterial properties, while for energy-related applications, the focus is on electrochemical energy storage, catalysis, and solar energy harvesting. In addition, perspectives on pressing challenges and future research opportunities regarding PDA-based nanoreactors are discussed.
Y1  - 2020
U6  - https://doi.org/10.1039/d0sc04486e
SN  - 2041-6520
SN  - 2041-6539
VL  - 11
IS  - 45
SP  - 12269
EP  - 12281
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  -