News

RiFood co-organises workshops to promote food upcycling and reduce food waste

The Research Institute for Future Food (RiFood) recently co-organised workshops with the aim of promoting food upcycling and reducing both food waste and carbon footprints. The workshop titled “From Waste to Worth: What Is Upcycled Food and Why Should We Try It?”, held in collaboration with the School of Hotel and Tourism Management (SHTM) and the Campus Facilities and Sustainability Office (CFSO) on 10 February 2025, discussed the significance of food upcycling in minimising food waste and lowering carbon emissions. Participants also had the opportunity to try upcycled snacks. Additionally, in the “Brew-tiful Workshop” co-organised with the Food and Wine Academy of SHTM on 11 February 2025, participants explored the art of crafting beers, upcycling coffee grounds, bread and fruit into beers with unique flavours, distinct from traditional wheat-brewed varieties.

PolyU and CSD sign MOU to promote upcycling of food waste and development of eco-friendly products

The Hong Kong Polytechnic University (PolyU) and the Correctional Services Department (CSD) signed a Memorandum of Understanding (MoU) today to jointly promote the upcycling of food waste and the development of environmentally friendly products, injecting new impetus into the sustainable development of the correctional industry. The MoU sets out a framework for collaboration between PolyU and CSD to jointly promote innovative development initiatives over the next five years, including the application of PolyU’s scientific research results on food waste upcycling to industrial production in correctional institutions; and the provision of vocational training to persons in custody (PICs) in the design and production of environmentally friendly products by PolyU to enhance their employability. The collaboration not only promotes environmental protection but also assists in the rehabilitation of PICs. Witnessed by Prof. Christopher CHAO, Vice President (Research and Innovation) of PolyU, and Mr NG Chiu-kok, Deputy Commissioner of Correctional Services (Rehabilitation and Management), the MoU was signed by Prof. WONG Ka-hing, Director of the Research Institute for Future Food and Professor of the Department of Food Science and Nutrition of PolyU, and Mr TONG Soen, Assistant Commissioner of Correctional Services (Rehabilitation). Prof. Chao said at the ceremony that PolyU has been tackling social challenges and promoting sustainable development through innovative research and translating research outcomes over the years. The “food waste-derived 3D printing material” patented technology covered in the collaboration project was developed by PolyU’s Research Institute for Future Food, which opens up a new way to tackle the problems of municipal food waste and greenhouse gas emissions in Hong Kong. Both parties will work together to create a mutual aid ecosystem, where new economic, ecological, and cultural value can be generated, contributing to the realisation of a cohesive society and sustainable development. Addressing the ceremony, Mr Ng said that the CSD has been committed to introducing green measures in correctional work to build an integrated and sustainable correctional system. The signing of the MoU marks an important milestone in the sustainable development of correctional work. The first phase of the collaboration involves the application of PolyU’s patented technology for making 3D printing material with spent coffee grounds to the industrial production work performed by PICs. PolyU will also provide vocational training in product design for PICs to develop more environmentally friendly spent coffee grounds products. The environmentally friendly spent coffee grounds products will be available for sale on the CSD Sports Association's online charity gift sales platform, Made In Prison, to promote messages of supporting rehabilitation and environmental protection to the public. All proceeds from the sale, after deducting necessary costs, will be donated to various local registered charities, providing PICs with opportunities to contribute to the community.

Ir Prof. POON Chi-sun featured in short documentary film “Carbon Revolution in China”

Ir Prof. POON Chi-sun, Director of Research Centre for Resources Engineering towards Carbon Neutrality (RCRE), Head of Department of Civil and Environmental Engineering, Michael Anson Professor in Civil Engineering and Chair Professor of Sustainable Construction Materials, was featured in the short documentary film “Carbon Revolution in China”, to introduce the Eco-blocks developed by his team. It is a type of green construction material produced from construction and other waste materials, and can absorb carbon dioxide and store it permanently, thereby reducing greenhouse gas emissions. The short documentary film produced by the Hong Kong Coalition features efforts in mainland China and Hong Kong aimed at carbon reduction and energy saving, telling good stories of the Nation’s advances towards its “dual carbon” goals. Online coverage: Ta Kung Pao - https://polyu.me/4hMF1vN (3:01 - 4:50) HK01 - https://polyu.me/4hIeY99 (3:01 - 4:50) Bastille Post - https://polyu.me/42G9IP6 (3:01 - 4:50) Bauhinia - https://polyu.me/40Q6uWR (3:01 - 4:50)

Prof. MA Wei receives Smart Traffic Fund to develop AI-enabled parking garage vacancy prediction service

Prof. MA Wei, Member of Otto Poon Charitable Foundation Smart Cities Research Institute (SCRI), Research Institute for Sustainable Urban Development (RISUD) and Research Centre for Digital Transformation of Tourism (RCDTT), Assistant Professor of Department of Civil and Environmental Engineering of PolyU, has been awarded a funding of about HK$2.9 million from the Smart Traffic Fund for a period of 18 months, for his project titled “Parking Garage Vacancy Prediction Services in Hong Kong: AI-enabled Solutions for Enhanced Reliability and Extensibility”. This project aims to develop a deep learning-based parking garage vacancy prediction service for off street carparks in Hong Kong. By leveraging artificial intelligence (AI) technology and combining big data with real time data, the service will predict parking vacancy and estimate queuing times for fully occupied garages, helping to reduce motorists’ cruising time and enhance road efficiency. Read more: https://www.polyu.edu.hk/rio/news/2025/20250127---smart-traffic-fund/

Ir Prof. ZHENG Pai receives Smart Traffic Fund to develop smart driving assistant

Congratulations to Ir Prof. ZHENG Pai, Member of the Research Institute for Advanced Manufacturing (RIAM), Wong Tit Shing Young Scholar in Smart Robotics and Associate Professor in the Department of Industrial and Systems Engineering, and his team, on receiving over HK$5 million in funding from the Smart Traffic Fund under the Transport Department of the HKSAR Government for the two-year project titled “Develop a Vision-Language Model-based Smart Driving Assistant for Enhancing Safety and Convenience of Motorists”. The project aims to develop a smart driving assistant for vehicle cockpits leveraging vision-language models, which can analyse the environment in real time and drivers’ needs to offer appropriate interactive strategy for improving driver safety and convenience. This innovative approach promises to unlock new possibilities for enhancing driver-assistance technologies, reinforcing advancements in road safety and intelligent transport solutions.

Prof. Nathanael JIN receives AAEES “40 Under 40 Recognition Program” Award 2025

Prof. Nathanael JIN Ling, Member of the Research Institute for Future Food (RiFood) and the Research Institute for Sustainable Urban Development (RISUD), and Assistant Professor in the Department of Civil and Environmental Engineering and the Department of Health Technology and Informatics, has been recognised by the American Academy of Environmental Engineers and Scientists (AAEES) as one of the recipients of the “40 Under 40 Recognition Program” Award for 2025. Prof. Jin’s interdisciplinary research focuses on the intersection of environmental chemistry, toxicology and microbiology. His works addresses critical planetary health challenges, including air pollution’s impact on human health and marine pollution’s effects on wildlife. Prof. Jin’s research has been recognised by multiple Best Paper and Most Popular Paper Awards. He was invited by Nature to contribute commentaries to discuss global issues such as microbial hazards in plastic waste and health disparities from air pollution. Full list of the award recipients: https://www.aaees.org/40under40

Prof. Nathanael JIN writes commentary on microbial risks of plastic pollution for Nature

Prof. Nathanael JIN Ling, Member of the Research Institute for Future Food (RiFood) and the Research Institute for Sustainable Urban Development (RISUD), and Assistant Professor in the Department of Civil and Environmental Engineering and the Department of Health Technology and Informatics, was invited by Nature to contribute a commentary titled “What harmful microbes are lurking in the world’s 7 billion tonnes of plastic waste?”. In the paper, Prof. Jin and his team highlighted the microbial risks associated with plastic pollution and proposed a global strategy to address these challenges. Plastic debris creates a new ecological niche for microorganisms, forming a new ecosystem known as the “plastisphere”. The paper outlines the potential risks of plastisphere microbiomes pose to ecosystem functioning and the health of humans and other organisms. To develop a comprehensive global strategy, the paper suggests six priorities: quantifying effects, redefining plastic pollution, sustaining funding, establishing expert panels, adjusting management strategies and protecting people. Read the full paper: https://doi.org/10.1038/d41586-024-03150-6  

Three PAIR academics honoured as Fellows of Hong Kong Academy of Engineering

Congratulations to Prof. TAO Xiaoming, Management Committee Member of PolyU Academy for Interdisciplinary Research (PAIR) and Director of Research Institute for Intelligent Wearable Systems (RI-IWEAR), Ir Prof. YIN Jian Hua, Management Committee Member of Research Institute for Land and Space (RILS), and Ir Prof ZHAO Xiao Lin, Associate Director of RILS, on their elections as Fellows of the Hong Kong Academy of Engineering (HKAE). An induction ceremony was held on 20 January 2025 at Hotel ICON. The HKAE is a prestigious organisation dedicated to promoting and advancing the engineering field in Hong Kong. The Academy aims to foster collaboration, innovation, and excellence in engineering, contributing to the advancement of society and the development of Hong Kong and the Nation. It comprises a distinguished group of Fellows from various disciplines, recognised as leaders in their profession, with remarkable achievements in engineering sciences and applications.  Full list of the new Fellows: https://hkae.hk/en/hong-kong-academy-engineering-welcomes-eleven-new-fellows

Prof. Vivien LU integrates green radiative cooling coating with photovoltaics for energy saving in buildings

The PolyU Carbon Neutrality Funding Scheme aims to support the application of university research outcomes and to take the campus as a testbed to apply research solutions, with a goal of achieving carbon neutrality on campus and supporting Hong Kong’s goal of reaching carbon neutrality by 2050. With support from the Scheme, Prof. Vivien LU Lin, Member of the Otto Poon Charitable Foundation Research Institute for Smart Energy (RISE), Research Institute for Sustainable Urban Development (RISUD) and Research Centre for Resources Engineering towards Carbon Neutrality (RCRE), and Professor of the Department of Building Environment and Energy Engineering, and her research team, has integrated the solar-driven adaptive radiative cooling (SARC) coating they developed, with bifacial solar photovoltaics (PV) to achieve synergistic enhancement in thermal management and power generation, transforming buildings from energy consumers into energy harvesters. The team is planning to install bifacial PV panels on the rooftops of the under-construction PolyU Kowloon Tong Student Hostel, with new coating applied on the corresponding area under the panels, to enhance power generation while radiatively cooling the buildings. The carbon dots (CDs)-driven photoluminescent radiative cooling nanocoating can be applied to building rooftops and exterior walls. This novel coating can automatically adjust its absorption and emission of solar and thermal radiation in response to changes in environmental temperature or light conditions, helping to mitigate the heat island effect caused by building materials. It uses photoluminescence technology to convert ultraviolet light into visible light, thereby improving the absorption and utilisation of light by PV and increasing its conversion efficiency. Compared to traditional coatings, this novel coating can effectively improve effective daytime solar reflectance from 92.5% to 95%, increase the cooling effect by 10% to 20%, and reduce the temperature by up to 25°C when applied to concrete rooftops. This nanocoating is environmentally friendly, water-soluble, volatile organic compounds (VOCs)-free, and can be produced in various colours, thus demonstrating significant application potential. Press Release: https://www.polyu.edu.hk/media/media-releases/2024/0924_polyu-researchers-unveil-novel-carbon-dots-driven-green-radiative-cooling-coating/ Online coverage: Sing Tao Headline - https://polyu.me/4hofXLG (Chinese only)

RISA co-organises The 5th Biomedical Engineering Innovation Competition “Love．Innovate for Happy Ageing”

The 5th Biomedical Engineering Innovation Competition, titled “Love．Innovate for Happy Ageing”, was successfully held on 18 January 2025 on the PolyU campus. This year’s competition, organised by the Department of Biomedical Engineering of PolyU and co-organised by the Research Institute for Smart Ageing and the Hong Kong Sheng Kung Hui Welfare Council, was divided into two categories, including the “Challenge Competition”, an intergenerational robotic car competition and the “Design Competition”, a creative gerontechnology product design competition. This year’s design competition was joined by nearly 650 college, secondary and primary students as well as elders, and they were divided into 62 participating teams. Participants were required to design gerontechnology products for maintaining seniors’ physical and mental health through using STEM knowledge and skills. Online coverage: am730 - https://polyu.me/3Q225es Yahoo HK - https://polyu.me/3EiK9JL Line Today - https://polyu.me/42G52c8