Journal article
Assembly of highly efficient aqueous light-harvesting system from sequence-defined peptoids for cytosolic microRNA detection
Nano research, Vol.17(2), pp.788-796
02/01/2024
Abstract
Precisely controlled spatial distributions of artificial light-harvesting systems in aqueous media are of significant importance for mimicking natural light-harvesting systems; however, they are often restrained by the solubility and the aggregation-caused quenching effect of the hydrophobic chromophores. Herein, we report one highly efficient artificial light-harvesting system based on peptoid nanotubes that mimic the hierarchical cylindrical structure of natural systems. The high crystallinity of these nanotubes enabled the organization of arrays of donor chromophores with precisely controlled spatial distributions, favoring an efficient Forster resonance energy transfer (FRET) process in aqueous media. This FRET system exhibits an extremely high efficiency of 98.6% with a fluorescence quantum yield of 40% and an antenna effect of 29.9. We further demonstrated the use of this artificial light-harvesting system for quantifying miR-210 within cancer cells. The fluorescence intensity ratio of donor to acceptor is linearly related to the concentration of intercellular miR-210 in the range of 3.3-156 copies/cell. Such high sensitivity in intracellular detection of miR-210 using this artificial light-harvesting system offers a great opportunity and pathways for biological imaging and detection, and for the further creation of microRNA (miRNA) toolbox for quantitative epigenetics and personalized medicine.
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Details
- Title
- Assembly of highly efficient aqueous light-harvesting system from sequence-defined peptoids for cytosolic microRNA detection
- Creators
- Yang Song - Washington State UniversityXiaoli Cai - Washington State UniversityMingming Wang - Pacific Northwest National LaboratoryDan Du - Washington State UniversityYuehe Lin - Washington State UniversityChun-Long Chen - Pacific Northwest Natl Lab, Div Phys Sci, Richland, WA 99352 USA
- Publication Details
- Nano research, Vol.17(2), pp.788-796
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Tsinghua Univ Press
- Number of pages
- 9
- Grant note
- Materials Synthesis and Simulation Across Scales (MS3) Initiative through the Laboratory Directed Research and Development (LDRD) program at PNNL Cougar Cage Fund DE-AC02-05CH11231 / Office of Science; United States Department of Energy (DOE) DE-AC05-76RL01830 / Department of Energy by Battelle; United States Department of Energy (DOE) FWP 65357 / U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering at Pacific Northwest National Laboratory (PNNL); United States Department of Energy (DOE)
- Identifiers
- 99901227847801842
- Language
- English
- Resource Type
- Journal article