Abstract
Congo red (CR) dye molecules self-associate in water solutions creating ribbon-like supramolecular structures that can bind various aromatic compounds by intercalation, forming mixed supramolecular systems. Mixed supramolecular systems, such as CR-doxorubicin and CR-Evans blue, interact with the surface of carbon nanotubes, leading to their stiffening and ultimately to their breaking and shortening. This work presents a simple method of obtaining short and straight carbon nanotubes with significantly better dispersion in aqueous solutions and consequently improved usability in biological systems.
Acknowledgments
The authors thank LabSoft company for providing AFM analysis and Dr. Magdalena Jarosz (Laboratory of Scanning Electron Microscopy of Biological and Geological Sciences, Faculty of Biology and Earth Sciences, Jagiellonian University) for providing SEM analysis.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: The authors acknowledge the financial support from the project Interdisciplinary PhD Studies “Molecular Sciences for Medicine” (cofinanced by the European Social Fund within the Human Capital Operational Programme) and the Ministry of Science and Higher Education (grant no. K/DSC/001370).
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
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