Photon Upconversion Lithography: Patterning of Biomaterials Using Near-Infrared Light

Photon upconversion lithography is demonstrated for the patterning of proteins using near‐infrared light. Proteins and an upconverting‐nanoparticle‐decorated substrate are linked via blue‐light‐cleavable Ru complexes. The substrate is irradiated using near‐infrared light with a photomask. In the exp...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2015-04, Vol.27 (13), p.2203-2206
Main Authors: Chen, Zhijun, He, Shuqing, Butt, Hans-Jürgen, Wu, Si
Format: Article
Language:English
Subjects:
Biocompatible Materials - chemistry
Biomedical materials
Cleavage
Infrared Rays
Lithography
Models, Molecular
Nanoparticles
Organometallic Compounds - chemistry
Patterning
photocages
Photochemical Processes
Photons
photopatterning
Printing
protein adsorption
Protein Conformation
Proteins
Proteins - chemistry
Ruthenium - chemistry
Upconversion
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Summary:Photon upconversion lithography is demonstrated for the patterning of proteins using near‐infrared light. Proteins and an upconverting‐nanoparticle‐decorated substrate are linked via blue‐light‐cleavable Ru complexes. The substrate is irradiated using near‐infrared light with a photomask. In the exposed areas, upconverting nanoparticles convert the near‐infrared light into blue light, which induces cleavage of the Ru complexes and release of the proteins.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201405933