Abstract: The invention provides luminescent lanthanide nanoparticles having simultaneously an improved brightness and an increased lifetime of the excited-state. These nanoparticles comprise terbium ions and ions of a second lanthanide, preferentially europium, and are coated with molecules of chromophore ligand bonded to the surface of the nanoparticle. The ligand is an organic molecule comprising at least one chromophore radical of formula I or of formula II: wherein R is selected from H, CN group or COOH group. The phosphorescence excited-state lifetime is improved by energy transfer from surface terbium ions to core ions of the second lanthanide. The nanoparticle may further comprise a carrier molecule of analytical interest covalently attached to at least one ligand molecule.
Type:
Application
Filed:
November 20, 2024
Publication date:
March 6, 2025
Applicants:
Université De Strasbourg, Centre National De La Recherche Scientifique, Université Paris Saclay, Hong Kong Baptist University
Inventors:
Ka-Leung WONG, Joan GOETZ, Loïc CHARBONNIERE, Niko HILDEBRANDT, Aline NONAT, Cyrille CHARPENTIER, Marcelina CARDOSO DOS SANTOS, Vjona CIFLIKU
Abstract: The invention provides luminescent lanthanide nanoparticles having simultaneously an improved brightness and an increased lifetime of the excited-state. These nanoparticles comprise terbium ions and ions of a second lanthanide, preferentially europium, and are coated with molecules of chromophore ligand bonded to the surface of the nanoparticle. The ligand is an organic molecule comprising at least one chromophore radical of formula (I) or of formula (II): wherein R is selected from H, CN group or COOH group. The phosphorescence excited-state lifetime is improved by energy transfer from surface terbium ions to core ions of the second lanthanide. The nanoparticle may further comprise a carrier molecule of analytical interest covalently attached to at least one ligand molecule.
Type:
Grant
Filed:
July 4, 2019
Date of Patent:
December 10, 2024
Assignees:
UNIVERSITE DE STRASBOURG, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PARIS SACLAY, HONG KONG BAPTIST UNIVERSITY
Inventors:
Ka-Leung Wong, Joan Goetz, Loïc Charbonniere, Niko Hildebrandt, Aline Nonat, Cyrille Charpentier, Marcelina Cardoso Dos Santos, Vjona Cifliku
Abstract: Method of inhibiting a protein-protein interaction between Von Hippel-Lindau tumor-suppressor protein and hypoxia-inducible factor 1-alpha useful in the treatment of angiogenesis-related diseases and promoting wound healing.
Type:
Grant
Filed:
June 7, 2022
Date of Patent:
April 16, 2024
Assignees:
University of Macau, Hong Kong Baptist University
Inventors:
Chung Hang Leung, Dik Lung Ma, Ligen Lin, Guodong Li, Chung Nga Ko, Dan Li, Chao Yang
Abstract: Provided herein are compounds useful in the treatment of inflammatory diseases, pharmaceutical compositions comprising the same, and methods of use and preparation thereof. The compounds exhibit inhibitory effects on the expression and secretion of pro-inflammatory cytokines, such as IL-1?, IL-6 and TNF-?.
Type:
Grant
Filed:
November 16, 2022
Date of Patent:
April 9, 2024
Assignee:
Hong Kong Baptist University
Inventors:
Jun Wang, Zihao Wang, Qingjing Yang, Zhaoxiang Bian
Abstract: Provided herein is a method for authenticating animal hide gelatins using peptide markers found animal hide gelatin hydrolysates. The method can be used to authenticate animal hide gelatins derived from donkey hide, horse hide, pig hide, and cattle hide.
Abstract: Three-dimensional (3D) hierarchical morphologies widely exist in natural and biomimetic materials, which impart preferential functions including liquid and mass transport, energy conversion, and signal transmission for various applications. While notable progress has been made in the design and manufacturing of various hierarchical materials, the state-of-the-art approaches suffer from limited materials selection, high costs, as well as low processing throughput. Herein, by harnessing the configurable elastic crack engineering-controlled formation and configuration of cracks in elastic materials, an effect normally avoided in various industrial processes, the present invention provides a facile and powerful technique to enable the faithful transfer of arbitrary hierarchical structures with broad material compatibility and structural and functional integrity.
Type:
Grant
Filed:
October 23, 2020
Date of Patent:
December 12, 2023
Assignees:
Hong Kong Baptist University, The Hong Kong University of Science and Technology, City University of Hong Kong
Abstract: The present invention relates to a solid-state blended polymer system that has the property of tunable lasing wavelength through adjusting the blending ratio. It can be used for health monitoring, environmental monitoring sensor and tissue imaging. Current materials do not have the broad tunable range; from blue to infra-red across the optical range. By using the same two polymers, it is possible to produce laser emitting blue to red colour. It simplifies the design, eases multi-wavelength laser sensor system integration and therefore, making the production cost-effective.
Abstract: A method for treating cancer by using an agent which is capable of inhibiting the functionality of the MCM complex, a heterohexameric ring formed from six subunits, in the process of DNA replication and a method of screening for such agents by detecting the locations and functions of the MCM subunits, such as hMcm2 and hMcm6, in cells treated with candidate compounds.
Type:
Application
Filed:
April 17, 2023
Publication date:
September 21, 2023
Applicants:
The Hong Kong University Of Science And Technology, Hong Kong Baptist University, Macau University Of Science And Technology
Inventors:
Chun LIANG, Zhihong JIANG, Ziyi Wang, Zhiling Yu, Jingrong Wang, Liping Bai
Abstract: A method for forming a substrate with a multi-layered, flexible, and anti-scratch metal oxides protective coating being deposited onto the substrate is provided in the present invention, wherein the top most layer of the coating comprises Al2O3 or a mixture thereof such that the top most layer acts as an anti-scratching layer. The multi-layered, flexible and anti-scratch metal oxides protective coating also retains the flexibility of the underlying substrate.
Type:
Grant
Filed:
April 24, 2019
Date of Patent:
August 1, 2023
Assignees:
Hong Kong Baptist University, Cathay Photonics Limited
Inventors:
Kok Wai Cheah, Wing Yui Lam, Yu Wai Chan, Shing Chi Tse, Suet Ying Ching, Hoi Lam Tam
Abstract: The present disclosure relates to, inter alia, a method of treating cancer in a human patient in need thereof, comprising administering a therapeutically effective amount of a substrate of AKR1B1, AKR1B10, or both to said patient, wherein said patient has, or is suspected to have, cancer cells with elevated levels of AKR1B1, AKR1B10, or both, wherein said substrate is not 2-deoxy-D-glucose.
Type:
Application
Filed:
December 6, 2022
Publication date:
June 22, 2023
Applicant:
Beijing Normal University Hong Kong Baptist University United International College
Abstract: A method for treating cancer by using an agent which is capable of inhibiting the functionality of the MCM complex, a heterohexameric ring formed from six subunits, in the process of DNA replication and a method of screening for such agents by detecting the locations and functions of the MCM subunits, such as hMcm2 and hMcm6, in cells treated with candidate compounds.
Type:
Grant
Filed:
May 9, 2013
Date of Patent:
May 16, 2023
Assignees:
The Hong Kong University Of Science And Technology, Hong Kong Baptist University, Macau University Of Science And Technology
Inventors:
Chun Liang, Zhihong Jiang, Ziyi Wang, Zhiling Yu, Jingrong Wang, Liping Bai
Abstract: The present disclosure relates to patentiflorin A analogs that are useful as antivirals, such as anti-HIV, anti-coronaviral, anti-Ebola viral, and anti-influenza viral agents and methods of use thereof.
Abstract: The present disclosure relates to, inter alia, a method of treating cancer in a human patient in need thereof, comprising administering a therapeutically effective amount of a substrate of AKR1B1, AKR1B10, or both to said patient, wherein said patient has, or is suspected to have, cancer cells with elevated levels of AKR1B1, AKR1B10, or both, wherein said substrate is not 2-deoxy-D-glucose.
Type:
Grant
Filed:
November 3, 2016
Date of Patent:
December 13, 2022
Assignee:
Beijing Normal University Hong Kong Baptist University United International College
Abstract: Provided herein are porphyrinato-lanthanide complexes useful as theranostic agents and methods of preparation and use thereof. The porphyrinato-lanthanide complexes are useful in the treatment and imaging of cancer.
Type:
Grant
Filed:
April 2, 2019
Date of Patent:
November 8, 2022
Assignee:
Hong Kong Baptist University
Inventors:
Ka Leung Wong, Wai Kwok Wong, Ho Fai Chau
Abstract: Provided herein are compositions and methods useful for the analysis and authentication of polysaccharide-rich herbs, such as Dendrobium officinale, Radix Astragali, Radix Angelica Sinensis, and related herbal products.
Abstract: This invention provides a filter-free tunable spectrum PD with a layered structure of at least two electrodes and two functional layers. Both functional layers can be a layer, a stack of inorganic semiconductors, an organic semiconductor, an organic/polymer donor/acceptor blend, a hybrid semiconductor or their combinations that has a good charge transport property. The first functional layer absorbs the shorter-wavelength EM waves and is transparent to the longer-wavelength EM waves. The second functional layer absorbs the longer-wavelength EM waves. The detection spectrum window is determined by the difference in wavelengths between the transmission cut-off wavelength of the first functional layer and absorbing edge of the second functional layer, or between the absorption edge of the first functional layer and that of the second functional layer.
Abstract: Biocompatible silica inorganic sculptured extracellular nanomatrices (iSECnMs) of silica nanozigzags are deposited by glancing angle deposition (GLAD), to achieve induction of specific differentiation without growth factors. The nanostructure includes a plurality of nanozigzags. The nanozigzags include SiO2 and the nanozigzags having a pitch of 80 nm to 250 nm, and a contact depth of 90 nm to 260 nm. A method of cell therapy including substantia nigra organoids formed on silica iSECnMs is also provided.
Type:
Grant
Filed:
December 4, 2018
Date of Patent:
September 6, 2022
Assignee:
Hong Kong Baptist University
Inventors:
Kin Lam Yung, Zhifeng Huang, Shi Qing Zhang
Abstract: The present invention relates to a system for efficient large-scale data distribution in a distributed and parallel processing environment. In particular, the present invention relates to global Top-k sparsification for low bandwidth networks. The present invention verifies that gTop-k S-SGD has nearly consistent convergence performance with S-SGD and evaluates the training efficiency of gTop-k on a cluster with 32 GPU machines which are inter-connected with 1 Gbps Ethernet. The experimental results show that the present invention achieves up to 2.7-12× higher scaling efficiency than S-SGD with dense gradients, and 1.1-1.7× improvement than the existing Top-k S-SGD.
Abstract: The present invention relates to a bias-switchable spectral response high performance PD with multi-mode detection, e.g., dual-mode photoresponses in NIR and visible light ranges. The dual-mode PD has the absorber/spacer type components in its active layer, e.g., a tri-layer configuration of absorber-1 (absorber-1 absorbs the electromagnetic wave of the first wavelength comprising visible light)/optical spacer/absorber-2 (absorber-2 absorbs the electromagnetic wave of the second wavelength comprising IR light). In the presence of IR light, photocurrent generates in the IR light absorbing layer under a reverse bias. In the presence of visible light, photocurrent generates in the visible light absorbing layer under a forward bias. A bias-switchable spectral response PD offers an attractive option for applications in environmental pollution, bio, medical, agricultural, automotive, fishery, food, wellness and security monitoring, detection and imaging in two or different or multiple distinct bands.
Abstract: The present invention relates to methods for a blockchain search system, and particularly, the present invention relates to methods for assuring the data integrity on blockchain hybrid storage. Furthermore, the present invention provides a cost-efficient update scheme to maintain the on-chain index and authenticated data structure and is efficient and scalable under various operational parameters.