Emergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separation

Abstract Living cells maintain their lives through self-organization in an environment crowded with a rich variety of biological species. Recently, it was found that micro-droplets containing biomacromolecules, which vary widely in size, are generated accompanied by water/water phase-separation by s...

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Main Authors: Mayu Shono, Ritsuki Ito, Fumika Fujita, Hiroki Sakuta, Kenichi Yoshikawa
Format: Article
Language:English
Published: Nature Portfolio 2021-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-02990-w
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author Mayu Shono
Ritsuki Ito
Fumika Fujita
Hiroki Sakuta
Kenichi Yoshikawa
author_facet Mayu Shono
Ritsuki Ito
Fumika Fujita
Hiroki Sakuta
Kenichi Yoshikawa
author_sort Mayu Shono
collection DOAJ
description Abstract Living cells maintain their lives through self-organization in an environment crowded with a rich variety of biological species. Recently, it was found that micro-droplets containing biomacromolecules, which vary widely in size, are generated accompanied by water/water phase-separation by simple mechanical mixing of an aqueous solution with binary polymers. Here, we report that cell-sized droplets of nearly the same size are generated as a linear array within a glass capillary upon the introduction of a binary polymer solution of polyethylene glycol (PEG) and dextran (DEX). Interestingly, when DNA molecules are added to the polymer solution, stable droplets entrapping DNA molecules are obtained. Similarly, living cells are entrapped spontaneously for the linearly-arranged cell-sized droplets. This simple method for generating micro-droplets entrapping DNA and also living cells is expected to stimulate further study on the self-construction of protocells and micro organoids.
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spelling doaj.art-54832692201a47d9806fa942c5b3c8522022-12-21T23:17:08ZengNature PortfolioScientific Reports2045-23222021-12-011111910.1038/s41598-021-02990-wEmergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separationMayu Shono0Ritsuki Ito1Fumika Fujita2Hiroki Sakuta3Kenichi Yoshikawa4Department of Chemical Engineering and Materials Science, Doshisha UniversityFaculty of Life and Medical Sciences, Doshisha UniversityFaculty of Life and Medical Sciences, Doshisha UniversityFaculty of Life and Medical Sciences, Doshisha UniversityFaculty of Life and Medical Sciences, Doshisha UniversityAbstract Living cells maintain their lives through self-organization in an environment crowded with a rich variety of biological species. Recently, it was found that micro-droplets containing biomacromolecules, which vary widely in size, are generated accompanied by water/water phase-separation by simple mechanical mixing of an aqueous solution with binary polymers. Here, we report that cell-sized droplets of nearly the same size are generated as a linear array within a glass capillary upon the introduction of a binary polymer solution of polyethylene glycol (PEG) and dextran (DEX). Interestingly, when DNA molecules are added to the polymer solution, stable droplets entrapping DNA molecules are obtained. Similarly, living cells are entrapped spontaneously for the linearly-arranged cell-sized droplets. This simple method for generating micro-droplets entrapping DNA and also living cells is expected to stimulate further study on the self-construction of protocells and micro organoids.https://doi.org/10.1038/s41598-021-02990-w
spellingShingle Mayu Shono
Ritsuki Ito
Fumika Fujita
Hiroki Sakuta
Kenichi Yoshikawa
Emergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separation
Scientific Reports
title Emergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separation
title_full Emergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separation
title_fullStr Emergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separation
title_full_unstemmed Emergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separation
title_short Emergence of uniform linearly-arranged micro-droplets entrapping DNA and living cells through water/water phase-separation
title_sort emergence of uniform linearly arranged micro droplets entrapping dna and living cells through water water phase separation
url https://doi.org/10.1038/s41598-021-02990-w
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