Projects per year
Abstract
The generation of highly reactive oxygen species (ROS) at room temperature for application in organic synthesis and wastewater treatment represents a great challenge of the current chemical industry. In fact, the development of biodegradable scaffolds to support ROS-generating active sites is an important prerequisite for the production of environmentally benign catalysts. Herein, the electrostatic cocrystallization of a cationic phthalocyanine (Pc) and negatively charged tobacco mosaic virus (TMV) is described, together with the capacity of the resulting crystals to photogenerate ROS. To this end, a novel peripherally crowded zinc Pc (1) is synthesized. With 16 positive charges, this photosensitizer shows no aqueous aggregation, and is able to act as a molecular glue in the unidimensional assembly of TMV. A step-wise decrease of ionic strength in mixtures of both components results in exceptionally long fibers, constituted by hexagonally bundled viruses thoroughly characterized by electron and confocal microscopy. The fibers are able to produce ROS in a proof-of-concept microfluidic device, where they are immobilized and irradiated in several cycles, showing a resilient performance. The bottom-up approach also enables the light-triggered disassembly of fibers after use. This work represents an important example of a biohybrid material with projected application in light-mediated heterogeneous catalysis.
Original language | English |
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Article number | 1902582 |
Journal | Advanced Materials |
DOIs | |
Publication status | Published - 1 Jan 2019 |
MoE publication type | A1 Journal article-refereed |
Keywords
- heterogeneous catalysis
- phthalocyanines
- reactive oxygen species
- self-assembly
- viral capsids
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Dive into the research topics of 'Phthalocyanine–Virus Nanofibers as Heterogeneous Catalysts for Continuous-Flow Photo-Oxidation Processes'. Together they form a unique fingerprint.Projects
- 4 Finished
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BiHyOMat: BioHybrid Optoelectronic Materials
Kostiainen, M. & Anaya Plaza, E.
01/06/2018 → 20/06/2020
Project: EU: Other research funding
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SYNVIRO: Synthetic Virology Toolbox for the Encapsulation of Therapeutic Polyelectrolytes (SYNVIRO)
Kostiainen, M., Liu, Q., Ahmed, A., Anaya Plaza, E., Korpi, A., Julin, S. & Välimäki, S.
01/09/2017 → 31/08/2021
Project: Academy of Finland: Other research funding
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HYBER: The Academy of Finland's Centre of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials research (2014-2019)
Cherian, T., Ikkala, O., Bertula, K., Morits, M., Hynninen, V., Myllymäki, T., Toivonen, M., Haataja, J., Poutanen, M., Nonappa, N., Sanchez Sanchez, A., Rissanen, S. & Sohrabi, F.
01/01/2017 → 31/12/2019
Project: Academy of Finland: Other research funding