Article

Fiber-Integrated Metal–Organic Framework Nanosheets for Light Emission and Microendoscopy

Pavel V. AlekseevskiyITMO UniversityAnastasia EfimovaCenter for Nano Science and Technology, Fondazione Istituto Italiano di Tecnologia, Via Rubattino 81, Milano 20134, ItalySviatoslav PovarovITMO UniversityNikolaj A. ZhestkijITMO UniversityPavel A. DemakovLaboratory of Metal−Organic Coordination Polymers, Nikolaev Institute of Inorganic ChemistryNikita BurzakAlmazov Federal Medical Research CentreVyacheslav A. DyachukA.V. Zhirmunsky National Scientific Center of Marine BiologyV. P. FedinDalian University of TechnologyАndrei S. PotapovDalian University of TechnologyXiaolin YuDalian University of TechnologyValentin A. MilichkoDalian University of Technology

ACS Applied Nano Materialsjournal2026en

ABI

Abstract

We report two-dimensional (2D) metal–organic framework nanosheets (MONs) integrated with optical fiber (OF) that enable tunable light emission and biocompatible microendoscopy. Luminescent 2D frameworks based on Eu3+, Tb3+, and Y3+ ions are employed to produce freestanding MONs via freeze–thaw exfoliation, followed by integration onto the OF through solution dripping. The resulting MONs exhibit large aspect ratios of up to 2300:1 and display red, green, and blue photoluminescence (PL), respectively. Their integration with OFs enables PL color mixing, yielding tunable emission ranging from yellow to quasi-white. The MON-integrated OFs are subsequently used for light emission and in vivo microendoscopy of Casper fish, paving the way for efficient and sustainable 2D materials in optical and biomedical technologies.

Topics

Metal-Organic Frameworks: Synthesis and Applications Luminescence and Fluorescent Materials Nanoplatforms for cancer theranostics

Identifiers

DOI: 10.1021/acsanm.5c04932

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