Engineering Microorganisms to Incorporate Rare-Earth Elements into Optically Active Inorganic Nanoparticles
Abstract
REE doped materials are well known optical active materials widely used in display, LED, laser, phosphors applications. However, to the best of our knowledge, there has been no previous successful synthesis of sodium rare-earth fluoride NPs using biological route under mild aqueous conditions, as well as no report on successful aqueous synthesis of REE doped bio-lead halide perovskite materials. In this project, we have developed a novel bio-based two-step synthesis approach for high quality of bio- NaREEF4 nanoparticles. The synthesis involved aqueous synthesis of M13-phage templated bio-REE hydroxides as the precursors, and further fluoridation of bio-REE hydroxides in organic solvents to turn them to NaREEF4 nanoparticles. In a similar approach, the aqueous solution synthesized REE-doped bio-cesium lead hydroxide-REE (bio-CsPb-OH:REE) NPs as the precursors to synthesize halide perovskite (bio-CsPbX3:REE) NPs in organic solvents. Through this approach, we have demonstrated the ability to control the composition of the bio-REE NPs (e.g. Doped the one REE, two or more REEs with designed ratio), the particle size, uniformity and shape, PL efficiency, and material stoichiometry among the multiple elements in the NPs. The synthesis approaches developed in the project could provide alternate methods to produce very small, uniform high-emission, high-quantum yield biotemplated REE NPs (size less than 15 nm, QE greater than 30 ), and 1D and 2D nanomaterials under mild, aqueous conditions, which could be useful in many important applications such as biomedical near-infrared (NIR) imaging probes, photovoltaic devices, and phosphors for LEDs.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 2024
- Accession Number
- AD1231190
Entities
People
- Angela Belcher
- Jay Sacane
- Jifa Qi
- Ngozi Eze
- Nimrod Heldman
Organizations
- Massachusetts Institute of Technology