Ecological seawalls are coastal structures designed with ecoengineering principles to reduce wave impact while providing habitats for marine life. Featuring biomimetic surfaces and textured cavities, these polygonal units encourage the growth of algae, molluscs, and fish, restoring ecological balance and aesthetic harmony along urban shorelines.

The Artificial Mussel is a biomimetic passive sampler that concentrates trace heavy metals and radionuclides from diverse waters, and, through recent collaboration with CityUHK’s State Key Laboratory of Marine Environmental Health and smart-sponge technology, now extends to organic pollutants. Low-cost, zero-energy, and easy to deploy, it enables long-term, basin-scale aquatic risk assessment.

Microalgae are microscopic photosynthetic organisms that efficiently absorb carbon dioxide and release oxygen. Capable of processing up to 400 times more CO₂ than trees, they offer sustainable solutions for carbon reduction, biofuel production, and nutrient supply. Their rapid growth and versatility make them essential for future environmental and green technology innovations.

i2Film is an energy-free, eco-friendly cooling material based on passive radiative cooling technology. It reflects sunlight and emits heat efficiently, achieving temperatures below ambient levels without the need for electricity or refrigerants. This innovative film helps to reduce energy consumption and carbon emissions, supporting sustainable and net-zero building development.

Hopcopter combines the agility of quadcopters with the efficiency of pogo-stick jumping. Developed by CityUHK’s RISLAB team, it integrates a telescopic leg with a multi-rotor system for seamless flight and hopping transitions. This biomimetic robot excels in terrain traversal and endurance, offering groundbreaking applications in rescue, exploration, and entertainment.

Animal imaging uses advanced diagnostic imaging technologies such as X-ray, CT, MRI, and ultrasound to examine internal structures non-invasively. It supports clinical diagnosis, wildlife research, and conservation, enabling precise interpretation of animal health, anatomy, and pathology, while bridging veterinary science with environmental and biomedical applications.

Crafted using Awesome Lab’s custom concentric nozzle design, these bowls are formed by the simultaneous deposition of stained and natural porcelain. During printing, the motorcontrolled inner nozzle moves freely within the static outer shell, compositing a dance by revealing, concealing, and constantly weaving. The blue and white, blended from within, capture the dynamic motion in the form of a tangible ceramic ware.

Perovskite and organic solar cells represent a class of revolutionary thinfilm photovoltaic technology offering high efficiency, low production costs, and excellent flexibility. Manufactured through low-temperature solution processes using printable inks, they enable scalable mass production. Their durability and versatility make them ideal for applications in smart cities, IoT devices, and building-integrated solar systems.

Advanced optical-film integrated building-integrated photovoltaics enhances building aesthetics while providing thermal insulation and renewable energy. This makes it ideal for dense, high-rise cities like Hong Kong, seamlessly merging functionality with architectural beauty.

The smart food label by ZenxTag accurately detects food freshness through chemical sensing of biogenic amines. Its colour-changing design provides real-time results without the need to touch the food, empowering consumers and industries to ensure food safety, minimise waste, and enhance sustainability across the global food supply chain.

Arriving is an artistic reenactment of cultural transmission, inspired by a third-century BCE pottery tripod from Hubei. In collaboration with Hubei Provincial Museum, five modern replicas were created, smashed, and restored to explore themes of imitation, authenticity, and the continuous arrival of prototypes crossing time and civilisations.

Pyrocks is an AI-driven portable ultrasound device aiming to enable early screening and risk assessment of cardiovascular diseases in community and home settings, through automated carotid artery scanning, intima-media thickness measurement, and plaque detection, enhancing accessibility, reducing operational barriers, and promoting early intervention.