Antimicrobial ZnO Nanoparticle–Doped Polyvinyl Alcohol/Pluronic Blends as Active Food Packaging Films

摘要

Abstract >Today, plastic waste has been highlighted as one of the greatest threats to the environment. These environmental concerns and the increased necessity for safe food packaging have inspired scientists to focus on the development of active biodegradable materials. Herein, a novel poly(vinyl alcohol)/pluronic/ZnO nanocomposite film (PVA/PLUR/ZnO) is introduced as an active packaging material with enhanced antimicrobial activity. Gamma irradiation is used as a “green” route to prepare ZnO nanoparticles via a polymer pyrolysis method. The as‐prepared ecofriendly ZnO nanoparticles are characterized and incorporated into the PVA/PLUR matrix in different concentrations. Transmission electron microscopy and dynamic light scattering measurements prove that ZnO nanoparticles have a mean particle size of 30 nm with a spherical‐like morphology. Morphological and structural characterization confirm the successful incorporation of ZnO into the PVA/PLUR matrix, which in turn enhances the thermal and barrier properties of PVA/PLUR/ZnO nanocomposite films. On the other hand, the opacity of blends is increased. The PVA/PLUR/ZnO composites exhibit broad‐spectrum antimicrobial activity against Gram‐positive, Gram‐negative bacterial pathogens, and fungi, and the activity increases with increasing concentrations of ZnO nanoparticles. These results introduce PVA/PLUR/ZnO films as effective antimicrobial materials for active food‐packaging applications. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> 今天，塑料废物被强调为对环境的最大威胁之一。这些环境问题和安全食品包装的必要性都有灵感的科学家，专注于积极的可生物降解材料的发展。在此，将新的聚（乙烯醇）/ pluronic / ZnO纳米复合膜（PVA / PLUR / ZnO）作为具有增强的抗微生物活性的活性包装材料引入。 γ辐射用作“绿色”途径，通过聚合物热解法制制备ZnO纳米颗粒。制备的Ecofriendly ZnO纳米颗粒的特征和掺入不同浓度的PVA / PLUR基质中。透射电子显微镜和动态光散射测量证明ZnO纳米颗粒具有30nm的平均粒径，具有球形形态。形态学和结构表征证实，将ZnO的成功掺入PVA / PLUR基质，这反过来增强了PVA / PLUR / ZnO纳米复合膜的热阻性和屏障性质。另一方面，混合的不透明度增加。 PVA / plur / ZnO复合材料表现出抗革兰氏阳性，革兰氏阴性细菌病原体和真菌的广谱抗菌活性，并且随着ZnO纳米颗粒的浓度增加而增加。这些结果将PVA / plur / ZnO膜作为有效的抗微生物材料，用于有源食品包装应用。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-28901/'>《Particle & Particle Systems Characterization: Measurement and Description of Particle Properties and Behavior in Powders and Other Disperse Systems》</a> <b style="margin: 0 2px;">|</b><span>2020年第4期</span><b style="margin: 0 2px;">|</b><span>共11页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/6960.html" title="特种结构材料">特种结构材料;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=antimicrobial activity&option=203" rel="nofollow">antimicrobial activity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=food packaging&option=203" rel="nofollow">food packaging;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gamma irradiation&option=203" rel="nofollow">gamma irradiation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=pyrolysis&option=203" rel="nofollow">pyrolysis;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ZnO nanoparticles&option=203" rel="nofollow">ZnO nanoparticles;</a> </p> <div class="translation"> 机译：抗菌活性;食品包装;γ辐照;热解;ZnO纳米粒子; 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</span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020311602556.html">Mn掺杂ZnO纳米纤维/小尺寸ZnO纳米粒子的制备及其对丙酮气敏特性的研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=毛玉珍&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 毛玉珍</a> <span> . 2015</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120107043943.html">一种抗微生物塑料食品包装薄膜</a> <b>[P]</b> . <span> 中国专利： CN104448525A </span> <span> . 2015-03-25</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120106916504.html">通过ZnO纳米粒子掺杂并用于液晶显示器的液晶器件</a> <b>[P]</b> . <span> 中国专利： CN102732267A </span> <span> . 2012-10-17</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130439093171.html">Production of water-soluble polyvinyl alcohol-based shaped articles, e.g. films for packaging, by thermoplastically processing blend of (co)polyvinyl alcohol and carboxylated polymer, preferably by extrusion</a> <b>[P]</b> . <span> 外国专利：  DE10331767A1 </span> <span> . 2005-02-10</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：生产水溶性聚乙烯醇基成型制品，例如用于包装的薄膜，通过热塑性加工（共）聚乙烯醇和羧化聚合物的共混物，优选通过挤出 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130403180181.html">/ / polyvinyl alcohol/polymethyl methacrylate blend films prepared by the heterogeneous surface saponification of polyvinyl acetate/polymethyl methacrylate blend films and a preparing method thereof</a> <b>[P]</b> . <span> 外国专利：  KR101965599B1 </span> <span> . 2019-04-05</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：//通过聚乙酸乙烯酯/聚甲基丙烯酸甲酯共混膜的异质表面皂化制备的聚乙烯醇/聚甲基丙烯酸甲酯共混膜及其制备方法 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130406015746.html">/ / polyvinyl alcohol/polymethyl methacrylate blend films prepared by the heterogeneous surface saponification of polyvinyl acetate/polymethyl methacrylate blend films and a preparing method thereof</a> <b>[P]</b> . <span> 外国专利：  KR20180059643A </span> <span> . 2018-06-05</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：//通过聚乙酸乙烯酯/聚甲基丙烯酸甲酯共混膜的异质表面皂化制备的聚乙烯醇/聚甲基丙烯酸甲酯共混膜及其制备方法 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 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