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Scheeff S, Wang Y, Lyu MY, Nasiri Ahmadabadi B, Hau SCK, Hui TKC, Zhang Y, Zuo Z, Chan RWY, Ng BWL. Design and Synthesis of Bicyclo[4.3.0]nonene Nucleoside Analogues. Org Lett 2023; 25:9002-9007. [PMID: 38051027 PMCID: PMC10749478 DOI: 10.1021/acs.orglett.3c03590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/17/2023] [Accepted: 11/29/2023] [Indexed: 12/07/2023]
Abstract
Nucleoside analogues are effective antiviral agents, and the continuous emergence of pathogenic viruses demands the development of novel and structurally diverse analogues. Here, we present the design and synthesis of novel nucleoside analogues with a carbobicyclic core, which mimics the conformation of natural ribonucleosides. Employing a divergent synthetic route featuring an intermolecular Diels-Alder reaction, we successfully synthesized carbobicyclic nucleoside analogues with high antiviral efficacy against respiratory syncytial virus.
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Affiliation(s)
- Stephan Scheeff
- School of
Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin , Hong Kong
| | - Yan Wang
- Department
of Paediatrics, Faculty of Medicine, The
Chinese University of Hong Kong, Shatin , Hong Kong
- Hong Kong
Hub of Paediatric Excellence, The Chinese
University of Hong Kong, Kowloon
Bay, Hong Kong
| | - Mao-Yun Lyu
- School of
Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin , Hong Kong
| | - Behzad Nasiri Ahmadabadi
- Department
of Paediatrics, Faculty of Medicine, The
Chinese University of Hong Kong, Shatin , Hong Kong
- Hong Kong
Hub of Paediatric Excellence, The Chinese
University of Hong Kong, Kowloon
Bay, Hong Kong
| | - Sam Chun Kit Hau
- Department
of Chemistry, The Chinese University of
Hong Kong, Shatin , Hong Kong
| | | | - Yufeng Zhang
- School of
Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin , Hong Kong
| | - Zhong Zuo
- School of
Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin , Hong Kong
| | - Renee Wan Yi Chan
- Department
of Paediatrics, Faculty of Medicine, The
Chinese University of Hong Kong, Shatin , Hong Kong
- Li Ka Shing
Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin , Hong Kong
- Hong Kong
Hub of Paediatric Excellence, The Chinese
University of Hong Kong, Kowloon
Bay, Hong Kong
- S.H. Ho Research
Centre for Infectious Diseases, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Billy Wai-Lung Ng
- School of
Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin , Hong Kong
- Li Ka Shing
Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin , Hong Kong
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Zhang T, Wang L, Wang J, Wang Z, Gupta M, Guo X, Zhu Y, Yiu YC, Hui TKC, Zhou Y, Li C, Lei D, Li KH, Wang X, Wang Q, Shao L, Chu Z. Multimodal dynamic and unclonable anti-counterfeiting using robust diamond microparticles on heterogeneous substrate. Nat Commun 2023; 14:2507. [PMID: 37130871 PMCID: PMC10154296 DOI: 10.1038/s41467-023-38178-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 04/14/2023] [Indexed: 05/04/2023] Open
Abstract
The growing prevalence of counterfeit products worldwide poses serious threats to economic security and human health. Developing advanced anti-counterfeiting materials with physical unclonable functions offers an attractive defense strategy. Here, we report multimodal, dynamic and unclonable anti-counterfeiting labels based on diamond microparticles containing silicon-vacancy centers. These chaotic microparticles are heterogeneously grown on silicon substrate by chemical vapor deposition, facilitating low-cost scalable fabrication. The intrinsically unclonable functions are introduced by the randomized features of each particle. The highly stable signals of photoluminescence from silicon-vacancy centers and light scattering from diamond microparticles can enable high-capacity optical encoding. Moreover, time-dependent encoding is achieved by modulating photoluminescence signals of silicon-vacancy centers via air oxidation. Exploiting the robustness of diamond, the developed labels exhibit ultrahigh stability in extreme application scenarios, including harsh chemical environments, high temperature, mechanical abrasion, and ultraviolet irradiation. Hence, our proposed system can be practically applied immediately as anti-counterfeiting labels in diverse fields.
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Affiliation(s)
- Tongtong Zhang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Lingzhi Wang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jing Wang
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China
| | - Zhongqiang Wang
- Dongguan Institute of Opto-Electronics, Peking University, Dongguan, China
| | - Madhav Gupta
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xuyun Guo
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Ye Zhu
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Yau Chuen Yiu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Primemax Biotech Limited, Hong Kong, China
| | | | - Yan Zhou
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, China
| | - Can Li
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Dangyuan Lei
- Department of Material Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Kwai Hei Li
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, China
| | - Xinqiang Wang
- Dongguan Institute of Opto-Electronics, Peking University, Dongguan, China
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, China
| | - Qi Wang
- Dongguan Institute of Opto-Electronics, Peking University, Dongguan, China.
| | - Lei Shao
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China.
| | - Zhiqin Chu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China.
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Zhang T, Kalimuthu S, Rajasekar V, Xu F, Yiu YC, Hui TKC, Neelakantan P, Chu Z. Biofilm inhibition in oral pathogens by nanodiamonds. Biomater Sci 2021; 9:5127-5135. [PMID: 33997876 DOI: 10.1039/d1bm00608h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Complex microbial communities, e.g., biofilms residing in our oral cavity, have recognized clinical significance, as they are typically the main cause for infections. Particularly, they show high resistance to conventional antibiotics, and alternatives including nanotechnology are being intensively explored nowadays to provide more efficient therapeutics. Diamond nanoparticles, namely, nanodiamonds (NDs) with many promising physico-chemical properties, have been demonstrated to work as an effective antibacterial agent against planktonic cells (free-floating state). However, little is known about the behaviors of NDs against biofilms (sessile state). In this study, we uncovered their role in inhibiting biofilm formation and their disrupting effect on preformed biofilms in several selected orally and systemically important organisms. The current findings will advance the mechanistic understanding of NDs on oral pathogens and might accelerate corresponding clinical translation.
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Affiliation(s)
- Tongtong Zhang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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