Cellulose-based shape change smart material responding to moisture and light

IF 5.4 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-10-03 DOI:10.1016/j.colsurfa.2025.138542

Sanan Rezaei, Saeid Azizian

{"title":"Cellulose-based shape change smart material responding to moisture and light","authors":"Sanan Rezaei, Saeid Azizian","doi":"10.1016/j.colsurfa.2025.138542","DOIUrl":null,"url":null,"abstract":"<div><div>Over the past few years, researchers have focused on smart materials that respond to multiple stimuli. Using these materials, they can create soft robots that can replace more complex robots. Multi-response properties, very easy manufacturing with the cheapest materials, controllable smart deformation, and applicability in various industries are all very important for the development of intelligent soft robots. Since light and humidity are two available stimuli, here we report a type of cellulose-based smart sensor responsive to humidity and light, which can be used in the construction of cheap and soft robots. This sensor is easily made by heating thermal paper. As humidity increases, this sensor absorbs water molecules and changes shape. When light is illuminated on it, it desorbs the water molecules and returns to its original state. When the sensor is exposed to 100 % humidity, it can rotate about 552° with the speed of 6 °/s and return to its original position at a speed of 3 °/s when illuminated with infrared light. Due to its high response rate to both humidity and infrared light, various applications for the fabricated sensor are presented.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"728 ","pages":"Article 138542"},"PeriodicalIF":5.4000,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S092777572502446X","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Over the past few years, researchers have focused on smart materials that respond to multiple stimuli. Using these materials, they can create soft robots that can replace more complex robots. Multi-response properties, very easy manufacturing with the cheapest materials, controllable smart deformation, and applicability in various industries are all very important for the development of intelligent soft robots. Since light and humidity are two available stimuli, here we report a type of cellulose-based smart sensor responsive to humidity and light, which can be used in the construction of cheap and soft robots. This sensor is easily made by heating thermal paper. As humidity increases, this sensor absorbs water molecules and changes shape. When light is illuminated on it, it desorbs the water molecules and returns to its original state. When the sensor is exposed to 100 % humidity, it can rotate about 552° with the speed of 6 °/s and return to its original position at a speed of 3 °/s when illuminated with infrared light. Due to its high response rate to both humidity and infrared light, various applications for the fabricated sensor are presented.

查看原文本刊更多论文

基于纤维素的形状改变智能材料对水分和光线的反应

在过去的几年里，研究人员一直专注于对多种刺激做出反应的智能材料。利用这些材料，他们可以制造出软体机器人，取代更复杂的机器人。多响应特性、极容易用最便宜的材料制造、智能变形可控以及在各行业的适用性都是智能软机器人发展的重要条件。由于光和湿度是两种可用的刺激，在这里，我们报告了一种基于纤维素的智能传感器，它对湿度和光线有响应，可用于制造廉价的软机器人。这种传感器很容易通过加热热敏纸制成。当湿度增加时，这种传感器会吸收水分子并改变形状。当光照射在它上面时，它会吸收水分子，恢复到原来的状态。当传感器暴露在100 %的湿度时，在红外光照射下，它可以以6°/s的速度旋转约552°，并以3°/s的速度返回到原始位置。由于其对湿度和红外光的高响应速率，因此提出了各种制造传感器的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.