Research Stories

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perovskite solar cells
While the power conversion efficiency of perovskite solar cells (PVSCs) – a future of solar cells – has already greatly improved in the past decade, the problems of instability and potential environmental impact are yet to be overcome. Recently, scientists from City University of Hong Kong (CityU) have developed a novel method which can simultaneously tackle the leakage of lead from PVSCs and the stability issue without compromising efficiency, paving the way for real-life application of perovskite photovoltaic technology.
white graphene
Because of their unique physical, chemical, electrical and optical properties, two-dimensional (2D) materials have attracted tremendous attention in the past decades. After revealing the realistic strength and stretchability of graphene, nicknamed “black gold”, researchers from City University of Hong Kong (CityU) have carried forward the success by unveiling the high defect tolerance and elasticity of hexagonal boron nitride (h-BN), another 2D material known as “white graphene”.
graphene mask
Face masks have become an important tool in fighting against the COVID-19 pandemic. However, improper use or disposal of masks may lead to “secondary transmission”. A research team from City University of Hong Kong (CityU) has successfully produced graphene masks with an anti-bacterial efficiency of 80%, which can be enhanced to almost 100% with exposure to sunlight for around 10 minutes.
RGC research fellow schemes
Four outstanding scholars from City University of Hong Kong (CityU) have been selected as awardees of the inaugural Senior Research Fellow Scheme (SRFS) and Research Fellow Scheme (RFS) under the Research Grants Council (RGC), being granted a sum of more than HK$23 million as research funding. The acknowledgement of their research achievements is testimony to CityU’s research strengths and recognition of the University’s efforts in fostering interdisciplinary research.
spider-capture silk
Recently, a research team from City University of Hong Kong (CityU) has fabricated a fibre mimicking the structural properties of the natural spider-capture-silk. The fabricated all silk-protein fibre is very light, with a diameter even much smaller than a human hair. More importantly, its extraordinary directional water collection capability offers potential for its application in outdoor water collection or even as biomedical materials.
mhealth technology
The COVID-19 pandemic has put enormous pressure on the healthcare system globally. An International Task Force including the cerebro-cardiovascular health engineering expert from City University of Hong Kong (CityU) was led by the team of Harvard Medical School at Spaulding Rehabilitation Hospital, Boston, USA and published jointly a study on the roles of mobile health (mHealth) technologies amid the COVID-19 pandemic. It is concluded that wearable-based mHealth technologies could be used to monitor COVID-19 patients and predict symptom escalation for earlier intervention.
A new non-invasive liquid biopsy technique for early detection of brain tumours
A team of cross-disciplinary scientists from City University of Hong Kong (CityU) has discovered new biomarkers in blood serum, which can be quantitatively detected by the label-free biosensors developed by the team, for the early detection of glioma progression - a common type of brain tumour. The findings enable a non-invasive liquid biopsy of glioma to be conducted, making it a promising diagnostic tool in the future.
phononlike
Recently, with the state-of-the-art neutron scattering instrumentation and molecular dynamic simulations, an international research team, led by physicists from City University of Hong Kong (CityU), has demonstrated the existence of high-frequency transverse phonons in metallic glass for the first time. Their findings also suggest that the atomic structure correlates with its atomic dynamics, providing new insight for understanding the atomic structure-dynamics relationship in disordered materials.
multi-element co-segregation
A research team led by scientists of City University of Hong Kong (CityU) has recently discovered the disordered nanoscale layers at grain boundaries in the ordered intermetallic alloys. The nanolayers can not only resolve the irreconcilable conflict between strength and ductility effectively, but also maintain the alloy’s strength with excellent thermal stability at high temperatures.
CARPID
While scientists still don’t fully understand the diverse nature of RNA molecules, it is believed that the proteins binding to them, called RNA-binding proteins, are associated with many disease formation. A research led by biomedical scientists from City University of Hong Kong (CityU) has developed a novel detection method, called CARPID, to identify binding proteins of specific RNAs in the living cells. It is expected the innovation can be applied in various cell research, from identifying biomarkers of cancer diagnosis to detecting potential drug targets for treating viral diseases.
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