Effect of functionalization on the optical properties of polymer-based nanostructure

IF 3.674 4区工程技术 Q1 Engineering Applied Nanoscience Pub Date : 2024-04-04 DOI:10.1007/s13204-024-03045-y

Aleena Ann Mathew, Neethu Joseph, Elcey C. Daniel, Manoj Balachandran

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Abstract

Polymer nanomaterials are an emanating area of research incited by the wide range of applications in solar cells, catalysis, sensors, drug delivery, electronics, bioimaging, etc., due to their outstanding mechanical, optical and electronic properties. Small dimensions in the nanometre range and a high surface-to-volume ratio of polymer nanomaterials possess distinctive features compared to bulk counterparts. In this work, doped polyvinyl alcohol (PVA) nanostructures were prepared by a one-step hydrothermal synthesis method and studied the morphological, structural and optical properties. The attained nanomaterials exhibit a spherical shape, and their average size was calculated as 3.98 nm by HR-TEM analysis. The obtained nanomaterials are dissolved in N,N-dimethyl formamide (DMF) solvent and can be employed for optoelectronic devices due to their amorphous structure and direct bandgap. Green luminescence was observed under UV light, and non-biocidal activity showed against Escherichia coli, Pseudomonas fluorescens, E. coli DH5α, Bacillus subtilis and Staphylococcus aureus.

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功能化对聚合物基纳米结构光学特性的影响

聚合物纳米材料因其出色的机械、光学和电子特性，在太阳能电池、催化、传感器、药物输送、电子、生物成像等领域有着广泛的应用，因而成为一个新兴的研究领域。与块状聚合物相比，纳米范围内的小尺寸和高表面体积比的聚合物纳米材料具有与众不同的特点。本研究采用一步水热合成法制备了掺杂聚乙烯醇（PVA）纳米结构，并对其形态、结构和光学特性进行了研究。所制备的纳米材料呈球形，通过 HR-TEM 分析计算出其平均尺寸为 3.98 nm。获得的纳米材料溶于 N,N-二甲基甲酰胺（DMF）溶剂中，由于其非晶结构和直接带隙，可用于光电器件。在紫外光下观察到绿色发光，对大肠杆菌、荧光假单胞菌、大肠杆菌 DH5α、枯草杆菌和金黄色葡萄球菌具有非杀菌活性。

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来源期刊

Applied Nanoscience Materials Science-Materials Science (miscellaneous)

CiteScore

7.10

自引率

0.00%

发文量

430

期刊介绍： Applied Nanoscience is a hybrid journal that publishes original articles about state of the art nanoscience and the application of emerging nanotechnologies to areas fundamental to building technologically advanced and sustainable civilization, including areas as diverse as water science, advanced materials, energy, electronics, environmental science and medicine. The journal accepts original and review articles as well as book reviews for publication. All the manuscripts are single-blind peer-reviewed for scientific quality and acceptance.