报告题目：Nanomaterials Improving the Diagnostics and Food Safety

报 告 人：Prof. Mian Hasnain Nawaz

邀 请 人：韩冬雪 教授

主 持 人：韩冬雪 教授

报告时间：2024年12月2日 3:30

报告地点：广州大学大学城校区理科北楼202-2会议室

报告人简介：

Dr. Hasnain earned his PhD in Materials Science and Engineering from East China University of Science and Technology, Shanghai (2013). During his doctoral dissertation he mainly focused on polymer chemistry and porphyrin-fullerene nanocomposites to explore their self-assembly behavior. Later, he did his postdocs from University de Perpignan, France and CIAC, Chinese Academy of Sciences, China working in the field of materials synthesis for Dengue Fever detection and DNA damage studies. Main themes of his current research are Synthesis and characterization of metal nanoparticles, carbon nanomaterials, conducting polymers and their composites for their applications as probe materials. He has completed several research projects in his research domain funded by COMSATS and Higher Education Commission, Pakistan. He has published several high impact research articles in internationally recognized journals including, Biosensors and Bioelectronics, Sensors and Actuators B, ACS Applied Nanomaterials, Carbon, Analytical Chemistry, Chemical Communications, Chemosphere, Analytical Chimica Acta, Microchimica Acta, Coordination Chemistry Reviews etc.

报告简介：

Smart packaging of food is an emerging and challenging field of research that monitor the food quality and conditions in real-time and enable consumers to recognize freshness of food. This will lead to lessen health, food loss and environmental concerns. A number of smart packaging materials based upon different detection systems are available. Out of these, fluorescent and Colorimetric based indicators have gained center of attention owing to on-time detection based on color change. Here, smart packaging material as colorimetric and fluorescent indicators for chicken meat spoilage are fabricated and their response was analyzed. Novel nanomaterials corroborated fluorescence probing of spoilage indicators via monitoring their Fluorescence emission spectra. Moreover, the composite material based on biopolymer and metal oxide nanocomposite spin coated on a glass slide acted as colorimetric indicator. The colorimetric response of the nanocomposite towards chicken meat spoilage was monitored by visual color change and RGB color model. The colorimetric composite formed was selective for volatile amines specifically released by spoiling chicken meat. The optimization of affecting parameters further facilitated the selectivity and analytic performance of the protocol and proved that the fabricated material can be used on commercial scale to indicate the freshness of the packed meat.