En route to single-step, two-phase purification of carbon nanotubes facilitated by high-throughput spectroscopy
Year: 2021
Type: article
Abstract: Chirality purification of single-walled carbon nanotubes (SWCNTs) is desirable for applications in many fields, but general utility is currently hampered by low throughput. We discovered a method to obtain single-chirality SWCNT enrichment by the aqueous two-phase extraction (ATPE) method in a single step. To achieve appropriate resolution, a biphasic system of non-ionic tri-block copolymer surfactant is varied with an ionic surfactant. A nearly-monochiral fraction of SWCNTs can then be harvested from the top phase. We also found, via high-throughput, near-infrared excitation-emission photoluminescence spectroscopy, that the parameter space of ATPE can be mapped to probe the mechanics of the separation process. Finally, we found that optimized conditions can be used for sorting of SWCNTs wrapped with ssDNA as well. Elimination of the need for surfactant exchange and simplicity of the separation process make the approach promising for high-yield generation of purified single-chirality SWCNT preparations.
Source: Scientific Reports
Authors: Blazej Podlesny, Barbara Olszewska, Zvi Yaari, Prakrit V. Jena, Gregory Ghahramani, Ron Feiner, Daniel A. Heller, Dawid Janas
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,990
Funders: National Science Foundation, American Cancer Society, Ovarian Cancer Research Fund, Commonwealth Foundation, Honorable Tina Brozman Foundation, Memorial Sloan-Kettering Cancer Center, Pershing Square Sohn Cancer Research Alliance, Cycle for Survival, Polsko-Amerykanska Komisja Fulbrighta, US-UK Fulbright Commission, Narodowe Centrum Nauki, Narodowym Centrum Nauki, Silesian University of Technology, National Institutes of Health, Clinical and Translational Science Collaborative of Cleveland, School of Medicine, Case Western Reserve University, National Cancer Institute, National Institute of Diabetes and Digestive and Kidney Diseases, National Center for Advancing Translational Sciences
Awards: G119911605, G2215812592, G372934033, G3860034078, CAREER: A Quantitative Nanosensor to Measure Redox Potential in Living Systems, P-selectin-Mediated Targeting of PI3K Nanomedicines to the Tumor Microenvironment, G6671297155, G6812410181, G7255224073, G7343297910, Renal tubule-specific nanotherapeutics for acute kidney injury, Cancer Center Support Grant, Clinical and Translational Science Center
OpenAlex ID: W3160188997