Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer Microfluidics

Pectin is a plant-derived heteropolysaccharide that has been implicated in drug development, tissue engineering, and visceral organ repair. Pectin demonstrates remarkable biostability in a variety of physiologic environments but is biodegradable in water. To understand the dynamics of pectin biodegr...

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Main Authors: Matthew W. Liao, Betty S. Liu, Joseph Sutlive, Willi L. Wagner, Hassan A. Khalil, Zi Chen, Maximilian Ackermann, Steven J. Mentzer
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/18/3911
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author Matthew W. Liao
Betty S. Liu
Joseph Sutlive
Willi L. Wagner
Hassan A. Khalil
Zi Chen
Maximilian Ackermann
Steven J. Mentzer
author_facet Matthew W. Liao
Betty S. Liu
Joseph Sutlive
Willi L. Wagner
Hassan A. Khalil
Zi Chen
Maximilian Ackermann
Steven J. Mentzer
author_sort Matthew W. Liao
collection DOAJ
description Pectin is a plant-derived heteropolysaccharide that has been implicated in drug development, tissue engineering, and visceral organ repair. Pectin demonstrates remarkable biostability in a variety of physiologic environments but is biodegradable in water. To understand the dynamics of pectin biodegradation in basic environments, we developed a microfluidics system that facilitated the quantitative comparison of pectin films exposed to facial erosion. Pectin biodegradation was assessed using fluorescein tracer embedded in pectin, trypan blue quenching of released fluorescence, and highly sensitive microfluorimetry. The microfluidic perfusate, delivered through 6 um-pore synthetic membrane interface, demonstrated nonlinear erosion of the pectin film; 75% of tracer was released in 28 h. The microfluidics system was used to identify potential modifiers of pectin erosion. The polyphenolic compound tannic acid, loaded into citrus pectin films, demonstrated a dose-dependent decrease in pectin erosion. Tannic acid had no detectable impact on the physical properties of citrus pectin including adhesivity and cohesion. In contrast, tannic acid weakened the burst strength and cohesion of pectins derived from soy bean and potato sources. We conclude that facial erosion may explain the biostability of citrus pectin on visceral organ surfaces as well as provide a useful method for identifying modifiers of citrus pectin biodegradation.
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spelling doaj.art-c569ba82540e43f1b7e56b28075d20ce2023-11-23T18:32:00ZengMDPI AGPolymers2073-43602022-09-011418391110.3390/polym14183911Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer MicrofluidicsMatthew W. Liao0Betty S. Liu1Joseph Sutlive2Willi L. Wagner3Hassan A. Khalil4Zi Chen5Maximilian Ackermann6Steven J. Mentzer7Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115, USALaboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115, USALaboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115, USALaboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115, USALaboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115, USALaboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115, USAInstitute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University Mainz, 55131 Mainz, GermanyLaboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115, USAPectin is a plant-derived heteropolysaccharide that has been implicated in drug development, tissue engineering, and visceral organ repair. Pectin demonstrates remarkable biostability in a variety of physiologic environments but is biodegradable in water. To understand the dynamics of pectin biodegradation in basic environments, we developed a microfluidics system that facilitated the quantitative comparison of pectin films exposed to facial erosion. Pectin biodegradation was assessed using fluorescein tracer embedded in pectin, trypan blue quenching of released fluorescence, and highly sensitive microfluorimetry. The microfluidic perfusate, delivered through 6 um-pore synthetic membrane interface, demonstrated nonlinear erosion of the pectin film; 75% of tracer was released in 28 h. The microfluidics system was used to identify potential modifiers of pectin erosion. The polyphenolic compound tannic acid, loaded into citrus pectin films, demonstrated a dose-dependent decrease in pectin erosion. Tannic acid had no detectable impact on the physical properties of citrus pectin including adhesivity and cohesion. In contrast, tannic acid weakened the burst strength and cohesion of pectins derived from soy bean and potato sources. We conclude that facial erosion may explain the biostability of citrus pectin on visceral organ surfaces as well as provide a useful method for identifying modifiers of citrus pectin biodegradation.https://www.mdpi.com/2073-4360/14/18/3911pectintannic acidkineticsbiostabilitybiodegradationerosion
spellingShingle Matthew W. Liao
Betty S. Liu
Joseph Sutlive
Willi L. Wagner
Hassan A. Khalil
Zi Chen
Maximilian Ackermann
Steven J. Mentzer
Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer Microfluidics
Polymers
pectin
tannic acid
kinetics
biostability
biodegradation
erosion
title Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer Microfluidics
title_full Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer Microfluidics
title_fullStr Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer Microfluidics
title_full_unstemmed Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer Microfluidics
title_short Kinetics of Pectin Biopolymer Facial Erosion Characterized by Fluorescent Tracer Microfluidics
title_sort kinetics of pectin biopolymer facial erosion characterized by fluorescent tracer microfluidics
topic pectin
tannic acid
kinetics
biostability
biodegradation
erosion
url https://www.mdpi.com/2073-4360/14/18/3911
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