Structural Disorganization and Chain Aggregation of High-Amylose Starch in Different Chloride Salt Solutions

Liu, Ying; Liu, Peng; Ma, Cong; Zhang, Na; Shang, Xiaosen; Wang, Liming; Xie, Fengwei

doi:10.1021/acssuschemeng.9b07726

Cited by 36 publications

(20 citation statements)

References 59 publications

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“…4(c). Native RMS had X c = 21.9 ± 0.3% and HAMS had X c =12.9 ± 0.5%, similar to the data reported elsewhere (Chen et al, 2017a;Liu et al, 2019;Li et al, 2020). The modified RMS and HAMS samples followed similar trends of variation in X c .…”

Section: Morphology Of Modified Rms and Hamssupporting

confidence: 86%

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Comparison of the structure and properties of hydroxypropylated acid-hydrolysed maize starches with different amylose/amylopectin contents

et al. 2021

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Section: Morphology Of Modified Rms and Hamssupporting

confidence: 86%

“…) is an important parameter reflecting the molecular size or mass of a polymer in a given solvent at a certain temperature. Thus, it can be used to evaluate the influence of hydrolysis time on starch (Trinh & Dang, 2019;Li et al, 2020). Fig.…”

Section: Intrinsic Viscosity ([η]mentioning

confidence: 99%

Comparison of the structure and properties of hydroxypropylated acid-hydrolysed maize starches with different amylose/amylopectin contents

et al. 2021

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“…The high concentration of the CaCl 2 solution is essential for the preparation of such a starch material. The lowest salt concentration to disorganize G80 starch granules is 31% . If the concentration is lower than that, a transparent mixture cannot be formed and even a film cannot be formed.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Recently, we and other researchers have found that some salt ions (e.g., Zn 2+ and Ca 2+ ) can not only disorganize and amorphize starch granules effectively but also reinforce the starch chain network by forming amylose–metal cation inclusion complexes. − Because these salt ions are hygroscopic and can combine with water to form hydrates easily, polymer materials containing them could have improved water-holding capacity . Moreover, these salt ions can impart the materials with electrical conductivity.…”

Section: Results and Discussionmentioning

confidence: 99%

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Facile Preparation of Eco-Friendly, Flexible Starch-Based Materials with Ionic Conductivity and Strain-Responsiveness

Liu

et al. 2020

ACS Sustainable Chem. Eng.

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This work demonstrates a facile and "green" method to prepare eco-friendly, flexible, transparent, and ionically conductive starch-based materials, which have great potential for personal health-monitoring applications such as disposable electrodes. This method relies on the use of the CaCl 2 solution and enables both the efficient disorganization and amorphization of high-amylose starch granules with low energy consumption and the reinforcement of the starch chain network by starch−metal cation complexation. Specifically, the method involves a simple mixing of a high-amylose starch with the CaCl 2 solution followed by heating the mixture at 80 °C for 5 min. The whole process is completely environmentally benign, without any waste liquid or bioproducts generated. These resulting materials displayed tunable mechanical strength (500−1300 kPa), elongation at break (15−32%), Young's modulus (4−9 MPa), toughness (0.05−0.26 MJ/m 3 ), and suitable electrical resistivity (3.7−9.2 Ω•m). Moreover, the developed materials were responsive to external stimuli such as strain and liquids, satisfying the requirements for wearable sensor applications. Besides, composed of only starch, CaCl 2 , and water, the materials are much cheaper and eco-friendly (can be consumed by fish) compared with other polymer-based conductive hydrogels.

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An Ultrahighly Stretchable and Recyclable Starch‐Based Gel with Multiple Functions

Yang

Cui

et al. 2023

Advanced Materials

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With the development of various gel‐based flexible sensors, novel gels with multiple integrated and efficient properties, particularly recyclability, have been developed. Herein, a starch‐based ADM (Amylopectin (AP)‐poly 3‐[Dimethyl‐[2‐(2‐methylprop‐2‐ enoyloxy)ethyl]azaniumyl]propane‐1‐sulfonate (PDMAPS)‐MXene) gel is prepared by a facile “cooking” strategy accompanying the gelatinization of AP and polymerization reaction of zwitterionic monomers. Reversible crosslinking in the gel occurs through hydrogen bonding and electrostatic interactions. The ADM gel exhibits high stretchability (∼2700%, after one month), swift self‐healing performance, self‐adhesive properties, favorable freezing resistance, and satisfactory moisturizing properties (≥30 d). Interestingly, ADM gel can be recycled and reused by a “kneading” method and “dissolution‐dialysis” process, respectively. Furthermore, the ADM gel can be assembled as a strain sensor with a broad working strain range (∼800%) and quick response time (response time 211 ms and recovery time 253 ms, under 10% strain) to detect various macro‐ and micro‐human motions, even under harsh conditions such as pronunciation and handwriting. The ADM gel can also be used as a humidity sensor to investigate humidity and human respiratory status, suggesting its practical application in personal health management. This study provides a novel strategy for the preparation of high‐performance recycled gels and flexible sensors.This article is protected by copyright. All rights reserved

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Structural Disorganization and Chain Aggregation of High-Amylose Starch in Different Chloride Salt Solutions

Abstract: Please refer to published version for the most recent bibliographic citation information. If a published version is known of, the repository item page linked to above, will contain details on accessing it.

Cited by 36 publications

References 59 publications

Comparison of the structure and properties of hydroxypropylated acid-hydrolysed maize starches with different amylose/amylopectin contents

Comparison of the structure and properties of hydroxypropylated acid-hydrolysed maize starches with different amylose/amylopectin contents

Facile Preparation of Eco-Friendly, Flexible Starch-Based Materials with Ionic Conductivity and Strain-Responsiveness

An Ultrahighly Stretchable and Recyclable Starch‐Based Gel with Multiple Functions

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