Engineered Lysozyme: An Eco-Friendly Bio-Mechanical Energy Harvester

IF 13 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Energy & Environmental Materials Pub Date : 2024-07-02 DOI:10.1002/eem2.12787

Krittish Roy, Zinnia Mallick, Charlie O'Mahony, Laura Coffey, Hema Dinesh Barnana, Sarah Markham, Utsa Sarkar, Tewfik Solumane, Ehtsham Ul Haque, Dipankar Mandal, Syed A. M. Tofail

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Abstract

Eco-friendly and antimicrobial globular protein lysozyme is widely produced for several commercial applications. Interestingly, it can also be able to convert mechanical and thermal energy into electricity due to its piezo- and pyroelectric nature. Here, we demonstrate engineering of lysozyme into piezoelectric devices that can exploit the potential of lysozyme as environmentally friendly, biocompatible material for mechanical energy harvesting and sensorics, especially in micropowered electronic applications. Noteworthy that this flexible, shape adaptive devices made of crystalline lysozyme obtained from hen egg white exhibited a longitudinal piezoelectric charge coefficient (d ~ 2.7 pC N⁻¹) and piezoelectric voltage coefficient (g ~ 76.24 mV m N⁻¹) which are comparable to those of quartz (~2.3 pC N⁻¹ and 50 mV m N⁻¹). Simple finger tapping on bio-organic energy harvester (BEH) made of lysozyme produced up to 350 mV peak-to-peak voltage, and a maximum instantaneous power output of 2.2 nW cm⁻². We also demonstrated that the BEH could be used for self-powered motion sensing for real-time monitoring of different body functions. These results pave the way toward self-powered, autonomous, environmental-friendly bio-organic devices for flexible energy harvesting, storage, and in wearable healthcare monitoring.

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工程溶菌酶：一种生态友好的生物机械能收集器

溶菌酶是一种环保型抗菌球状蛋白质，被广泛应用于多种商业领域。有趣的是，由于溶菌酶具有压电和热释电性质，它还能将机械能和热能转化为电能。在这里，我们展示了将溶菌酶加工成压电器件的工程技术，这种器件可以利用溶菌酶作为环保、生物兼容材料的潜力，用于机械能采集和传感器，特别是在微动力电子应用中。值得注意的是，这种由从母鸡蛋清中提取的结晶溶菌酶制成的柔性形状自适应器件显示出与石英（~2.3 pC N-1 和 50 mV m N-1）相当的纵向压电电荷系数（d ~ 2.7 pC N-1）和压电电压系数（g ~ 76.24 mV m N-1）。用手指简单敲击溶菌酶制成的生物有机能量收集器（BEH）可产生高达 350 mV 的峰-峰电压，最大瞬时功率输出为 2.2 nW cm-2。我们还证明，BEH 可用于自供电运动传感，以实时监测不同的身体功能。这些研究成果为实现自供电、自主、环保的生物有机设备铺平了道路，这些设备可用于灵活的能量采集、存储和可穿戴式医疗保健监测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy & Environmental Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

17.60

自引率

6.00%

发文量

期刊介绍： Energy & Environmental Materials (EEM) is an international journal published by Zhengzhou University in collaboration with John Wiley & Sons, Inc. The journal aims to publish high quality research related to materials for energy harvesting, conversion, storage, and transport, as well as for creating a cleaner environment. EEM welcomes research work of significant general interest that has a high impact on society-relevant technological advances. The scope of the journal is intentionally broad, recognizing the complexity of issues and challenges related to energy and environmental materials. Therefore, interdisciplinary work across basic science and engineering disciplines is particularly encouraged. The areas covered by the journal include, but are not limited to, materials and composites for photovoltaics and photoelectrochemistry, bioprocessing, batteries, fuel cells, supercapacitors, clean air, and devices with multifunctionality. The readership of the journal includes chemical, physical, biological, materials, and environmental scientists and engineers from academia, industry, and policy-making.