Facial recognition and public Wi-Fi are becoming more widespread in our daily lives. But have you ever considered that hackers are waiting around every corner to steal your credentials for profit? Fortunately, there are dedicated teams working tirelessly to combat these illegal activities. Two research teams from CUHK are hitting back at hack attacks as they examine vulnerabilities in facial recognition software and the configuration of virtual private networks and Wi-Fi networks.
Biofilms, which can occur in various places in the human body, can cause a range of infections. Made of microbes encased in a matrix that makes them resistant to external threats, they are notoriously hard to shift, especially when they accumulate on the surface of medical implants. New devices called “magnetic hydrogel micromachines”, developed by a CUHK team, are formidable weapons to resist and overcome the biofilm menace. It can be controlled by magnets, to precisely target the biofilm for removal.
Maybe you are one of the victims of a debilitating gastrointestinal disease, like gastric acid reflux or pathogen H pylori. When you are suffering from those diseases, you might wonder how bacteria which causes peptic ulcers can survive the acidic environment in your stomach? Besides risky invasive surgeries treating gastric acid reflux, is there an easier way getting rid of heartburn? You may be inspired by two recent CUHK breakthroughs.
Venom may be one of Spider-Man’s greatest nemeses, but the alien symbiote who can stretch and deform itself has inspired scientists to create soft robots that could transform numerous aspects of medical care, from targeted drug delivery to minimally invasive surgery. Professor Zhang Li from CUHK decided to channel Venom’s superpowers into building soft robots based on ferrofluids and a new silicone elastomer, which can be deformed in ever more complex ways, making them capable of a growing range of functions within the human body.
In a flower garden, we have army of honeybees that swarm to defend enemies; in a tortuous human lumen, we have army of microrobots that swarm to carry drugs that attack maladies. CUHK engineering professors have devised an avant-garde AI system that lets these microrobots navigate like bees and change shape inside complex environments like human bodies.
Life in an extremely cold region without electricity for heating and lighting can be a miserable experience, especially as existing battery technologies cannot retain a reliable power supply in such cold weather. When winter storms sweep across cities, the power crisis they cause can leave millions of people without electricity. CUHK researchers are trying to fix that with a new technology that promises to bring stability to electrical storage, even at very low temperatures.
Is this Spiderman’s foe Venom in real life? Video of a slimy, mucus-like extraterrestrial creature has gone viral online. It could neither invade nor kill a human. It is in fact a soft miniature robot invented by CUHK Faculty of Engineering that performs medical tasks inside human body. This viscous robot behaves like an octopus to enclose and grasp small objects and moves through the narrows of the human digestive system under magnetic control. Now further tests are needed to ensure that the body will be absolutely protected, leading to human tests in five years.
Applications of quantum sensing technology can be found in a wide range of settings, including medical imaging, prediction of weather patterns and even analysis of seismic activity. Professor Renbao Liu from Physics of CUHK has received the 2022 Willis E. Lamb Award for Laser Science and Quantum Optics for his contribution to spin decoherence and quantum sensing research. He and Professor Chester Shu from Electronic Engineering have also been elected Fellows of a prestigious society, highly commending their research achievements.
Gold is anti-inflammatory and has applications in the fields of jewelry, aviation, chemistry, and electronic circuit boards. Now researchers from CUHK Engineering have struck gold for psoriasis sufferers by developing a self-therapeutic gold nanoparticle that does not contain steroids and vitamin D analogs but has a similar effect, as proven in mice models. It was demonstrated that the gold nanoparticle could enter skin epidermal cells without causing hair loss and skin wrinkling.
loT is the key to building a smart city, in which sensors act as eyes and ears of the system to collect and convert physical variables into electronic signals for analysis. A self-powered wireless sensing e-sticker, thin as two human hairs, developed by CUHK, converts the power of a finger touch into electromagnetic wave signals to advance the smart sensing technology. Another discovery is a TENG with high power output to better harvest mechanical and biomechanical motion.
Surgical robots are commonly used in minimally invasive surgery and their accuracy holds the key to a successful operation. CUHK researchers have developed a world-first AI system with a novel deep learning method to optimise the gesture recognition of robots. The intelligent cognitive assistance not only allows robots to operate with greater precision for a safer surgery, but also wins patients’ trust in robotic surgery.
The ocean is the largest energy treasure house on earth, covering approximately 70% of its surface. Harvesting this is called “blue energy” and it’s a solution to energy crisis. However, given its complex technology and high cost, electricity generation from blue energy isn’t easy. A CUHK research team has recently developed a high-efficacy generator for harnessing ocean wave energy, which turns a new page.
Distinguished as safe, powerful and flexible but plagued by a short life, sulphur-based redox flow batteries have been given a boost to their duration by CUHK engineers, ending a long unsolved challenge. They have designed a novel membrane, keeping the battery’s two electrodes apart and reducing the loss of active materials, so ramping up its lifetime, stability, and its usefulness in grid-scale energy storage devices.
Constant academic pursuit by scholars is essential to driving improvements in life and social progress. Scholars and research studies from CUHK have received international and national awards in various disciplines over the past few months, with research excellence widely recognised.
Apart from achieving research excellence, the education sector has the prime responsibility to lookout for the interests of the community in these challenging times. CUHK rolled out thorough infection control measures and vigorous vaccination promotion efforts in fighting against COVID-19 , to get everyone back to their normal lives as soon as possible.
Global higher education is facing new challenges in the midst of the pandemic attack and a receding economy. CUHK scholars work to triumph over adversity and improve the condition of mankind through exceptional research achievement. Acknowledgement has been given to CUHK scholars through regional and international funding and fellowship support so that their research projects may further flourish.
Distinguished scholars are not only devoted to contributing their rich research experience to communities, they constantly pursue excellence in their areas of expertise and seek breakthroughs in their work, which attracts worldwide recognition.
Architects always have an abundance of design ideas, yet in the real world, there are limitations such as workers’ techniques, time and building costs. A professor from CUHK shows how cable-driven robots transform non-standard and artistic designs into precise executions and eventually help realise the endless possibilities for design concepts.
Smart wearable technology is evolving into a new form. Powering a smartwatch through solar power could be one the ways but how could it be sustainable under a lengthy cloudy sunless day? Researchers in CUHK recently found that you can be in control of your watch’s energy and sustain its battery endurance through walking and the swinging of your arms.
Science has the potential to change the world and the future of mankind. Through science, we can live a better life, or develop new vaccines, medicines, and technologies to prevent plagues, cure diseases, or explore the unknown possibilities. CUHK scholars reveal their research results on advancing human betterment. Their contributions to society have gained tremendous acclaim across global.
T-rays radiation does but, far from annoying, it’s a new, safe and easy boon to diagnosing skin disease. With your arm on the imaging window of T-ray equipment, T-rays get under the skin to measure thickness and hydration. A novel method of analysis from CUHK and Warwick University, T-rays improve treatment of eczema, psoriasis and skin cancer.
A remarkable medley of research projects led by CUHK professors include free speech training for underprivileged children with language disorders from a one-stop service platform for language development "Speak Along", helping radiologists better identify pulmonary lesions from X-rays images, and mining public data for improved decisions by China market investors, all winning Hong Kong ICT Awards this year.
We all know what LEGO is—it is a timeless, fun and educational toy for a kid, one he or she played with as a child, and now probably steps on when walking around the house as a parent. But the charm of LEGO knows no bounds. In fact, more and more adults nowadays show an increased interest in tinkering with these brightly hued bricks.
High energy batteries, in cell phones and laptops, can blow up in your face. Research around that problem surfaced with a solution from a surprisingly different field. It is a soluble polymer used in skin cream that can also stabilise battery output. Soon, putting a phone on your cheek will be as gentle on your skin as moisturizer.