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Selective separation of dyes and tetracycline hydrochloride in polymer-nucleotide coacervate droplets

Journal of Applied Polymer Science, ISSN: 1097-4628, Vol: 142, Issue: 5
2025
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Research Conducted at Northeast Electric Power University Has Updated Our Knowledge about Chemicals and Chemistry (Selective Separation of Dyes and Tetracycline Hydrochloride In Polymer-nucleotide Coacervate Droplets)

2024 DEC 02 (NewsRx) -- By a News Reporter-Staff News Editor at Chemicals & Chemistry Daily Daily -- A new study on Chemicals and Chemistry

Article Description

This paper reports the formation of coacervates by the electrostatic interaction of poly (diallyldimethylammonium chloride) (PDDA) and adenosine triphosphate (ATP) in aqueous solution, examining its formation conditions, stability, and efficiency in separation. The ideal concentration for creating coacervate droplets in pure water, HEPES buffer, and NaCl solution was determined to be 20 mM of PDDA and ATP. Enhancing the stability of coacervates was achieved by incorporating phospholipid vesicles on their surface, presenting a novel strategy for building cell models. Ostwald Ripening was employed to comprehend the growth mechanism of the coacervates, while the Hofmeister Ion Series and Schulze-Hardy's rule were utilized to elucidate the stability differences in solutions containing NaCl, NaSO, and MgCl. These coacervates were stable at concentrations below 90 mM NaCl, 200 mM NaSO, and 30 mM MgCl, respectively. We also explored the specific separation of dyes and tetracycline hydrochloride (TC) in the coacervates. Separation efficiencies of 92.98% for methylene blue (MB), 94.19% for methyl orange (MO), and 85.94% for TC, were achieved by the coacervates, which can be attributed to the synergistic effects of hydrophobicity, electrostatic forces, and π-π interactions. The proposed coacervates have great potential in cell mimicry and water treatment.

Bibliographic Details

Chuntao Zhu; Meng Yu; Zijian Liang; Lanhe Zhang; Jian Zhang

Wiley

Chemistry; Materials Science

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