通信作者简介

孙大文 院士

孙大文（Da-Wen Sun）教授，华南理工大学现代食品工程研究中心主任，欧洲科学院（欧洲人文和自然科学院）（Academia Europaea）院士，爱尔兰皇家科学院（Royal Irish Academy）院士，波兰科学院（Polska Akademia Nauk）外籍院士，国际食品科学院（IAFoST）院士，国际农业与生物系统工程科学院（iAABE）院士，国际制冷科学院院士。主要研究方向食品质量安全快速检测、食品冷冻冷链和食品新型物理加工。2015年至2019年连续五年荣获科睿唯安（原汤森路透）“高被引科学家”称号（SCI H指数 = 102，SCOPUS H指数 = 106，Google Scholar H指数 = 120）。获2014年广东省科学技术奖一等奖，2016年教育部科技进步奖二等奖，2018年中国轻工业联合会科学技术进步奖一等奖，2018年广东省科技进步奖一等奖。

Multifunctional cellulose based substrates for SERS smart sensing: Principles, applications and emerging trends for food safety detection

Bingxue Hu, Hongbin Pu, Da-Wen Sun

Background

Food safety issues leading to severe healthy, economic and even social problems and detection of food contaminants has been attracting remarkable attention in recent decades. Surface-enhanced Raman scattering (SERS) is one of the most promising techniques to enable detecting contaminants at trace levels. Besides, with the emergence of global resource shortages and environmental problems, there is a growing demand for environmentally friendly and renewable resources. As a sustainable and biodegradable raw material, cellulose has aroused great interest and stimulated researchers to develop cellulose-based SERS substrates with novel functions.

Scope and approach

The review focuses on the utilizing of cellulosic materials for the design and preparation of various SERS substrates, including cellulose-papers, cellulose fabrics (CFs) and membranes, cellulose nanofibrils (CNFs), bacterial cellulose (BC), nanocrystalline cellulose (NCC), and surface-modified cellulose. The applications, challenges and potential solutions of these cellulose-based substrates in food safety detection are also presented, proposed and evaluated.

Key findings and conclusions

For the complexity and diversity of multitudinous food systems, multiple approaches have been successfully employed to manufacture cellulose-based SERS substrates. Various types of cellulose with diverse morphology and mechanical properties make them customizable and integratable with multiple technologies in certain realistic applications. The explorations of SERS detections displaying excellent performances especially for the complex system/surface analysis with the capability of extraction, swabbing, transferring and concentrating target molecules from complexing food systems. The widespread application and prominent performance demonstrating the huge potential for cellulose-based materials to realize commercially viable, sustainable, flexible and green substrates in the near future.

该文章《Multifunctional cellulose based substrates for SERS smart sensing: Principles, applications and emerging trends for food safety detection》于《Trends in Food Science & Technology》2021年2月11日在线出版。点击下方阅读原文即可查看摘要原文。

编辑：袁艺；责编：张睿梅