Patents Assigned to University of Hong Kong
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Publication number: 20230358782Abstract: A nano scale robotic system for single cell DNA sequencing of a strand of DNA positioned on a slide utilizes an atomic force microscope (AFM) having an end effector in the form of a cantilever with a tip. The AFM causes its cantilever tip to scan over the base pairs of the DNA strand. A pair of spaced-apart electrodes at the tip makes contact with opposite sides of the DNA strand and the current between bases of the DNA strand is measured by a current measurement system connected to the electrodes. An artificial intelligence-based data analytic system determines the DNA sequence based on the current from the current measuring system. The AFM tip is guided over the DNA strand by comparing compressed desired intensity local scan images and compressed actual intensity local scan images and using the difference to control the location of the tip.Type: ApplicationFiled: October 27, 2022Publication date: November 9, 2023Applicants: VERSITECH LIMITED, City University of Hong KongInventors: Ning Xi, Song Wang, Pengtao Liu, Zhiyong Sun, Lixin Dong, Chaojian Hou, Donglei Chen, Wenqi Zhang
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Patent number: 11807854Abstract: The present invention provides an aptamer that specifically hinds CD44, composition comprising the aptamer, as well as methods for detecting CD44 and for targeted delivery to CD44-expressing cells.Type: GrantFiled: March 14, 2022Date of Patent: November 7, 2023Assignee: The Chinese University of Hong KongInventors: Nathalie Wong, Wing Sze Lo, James Y.W. Lau
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Patent number: 11807670Abstract: It provides novel fusion proteins that are capable of self-crystallization and exhibit improved physical properties such as enhanced tolerance to organic solvents and increased thermostability. Polynucleotides encoding the fusion proteins as well as methods of making and using such fusion proteins are also described.Type: GrantFiled: July 10, 2017Date of Patent: November 7, 2023Assignee: The Chinese University of Hong KongInventors: Michael Chan, Marianne Lee, Bradley Heater
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Publication number: 20230353104Abstract: A blocking signal cancellation low noise amplifier system includes a first low noise amplifier, a second low noise amplifier, a blocking signal extraction and bias generation circuit, a bias switching circuit, and a bias switching signal generating circuit. The first low noise amplifier is used for dynamic input matching, and the first low noise amplifier receives an input signal and outputs it after amplifying. The blocking signal extraction and bias generation circuit is used to extract a blocking signal from the output signal of the first low noise amplifier, and output a DC voltage signal. The bias switching circuit is used to switch the first low noise amplifier between a blocking mode and a small signal mode. The bias switching signal generating circuit is used to compare the DC bias voltage signal VB2 with a preset reference voltage signal Vref.Type: ApplicationFiled: July 20, 2021Publication date: November 2, 2023Applicant: THE CHINESE UNIVERSITY OF HONG KONG, SHENZHENInventors: Liang WU, Yifu LI, Xiaoping WU, Shiyuan ZHENG
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Publication number: 20230340650Abstract: An ultra-strong, ductile and cheap medium manganese steel comprises in percentage by mass: 8-12 wt. % Mn, 0.2-0.4 wt. % C, 1-3 wt. % Al, 0.05-0.39 wt. % V, and the balance of Fe. The manufacturing method of the ultra-strong and ductile medium manganese steel includes the steps of: (a) hot rolling an ingot at 900-1200° C. into a steel sheet (or plate, or bar); (b) air cooling or water quenching the steel sheet to room temperature or warm rolling temperature, (c) warm rolling the steel sheet at 350-750° C. with 30-60% thickness reduction; (d) air cooling or water quenched the steel sheet to room temperature; (e) annealing the steel sheet at 600-650° C. for 0-300 minutes and (f) air cooling or water quenched the sheet to room temperature.Type: ApplicationFiled: May 6, 2021Publication date: October 26, 2023Applicant: THE UNIVERSITY OF HONG KONGInventors: Mingxin HUANG, Chengpeng HUANG
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Publication number: 20230340678Abstract: A bilayer passive film structure of a substrate, comprising an inner layer comprising an oxide of a first element, and an outer layer comprising an oxide of a second element, wherein the passivation potential of the first element is lower than the passivation potential of the second element, and the passivation potential of the second element is lower than the transpassivation potential of the first element. Also a method of forming the above bilayer passive film structure of a substrate, comprising: treating a surface of the substrate containing Cr and Mn. Further a stainless steel comprises, in percentage by weight, 15%<Cr<22%, 13%<Mn<23%, 12%<Ni<23%, and 0.5%<Si<4%, wherein Si can be replaced with an equal amount of Al, Ti or V.Type: ApplicationFiled: April 21, 2023Publication date: October 26, 2023Applicant: THE UNIVERSITY OF HONG KONGInventors: Mingxin Huang, Kaiping Yu
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Publication number: 20230342885Abstract: Denoising of magnetic resonance (MR) images can be achieved using a deep neural network and an image acquisition process that uses multi-NEX (Number of Excitations) or multi-NSA (Number of Signal Averages or Acquisitions) to produce two or more complex-valued images of a region of interest. The set of images resulting from the image acquisition process can be input to a deep neural network that has been trained to produce a denoised MR image from a set of multi-NEX or multi-NSA images. The deep neural network can be implemented using a two-dimensional or three-dimensional convolutional neural network to match the dimensionality of the input images. Training of the denoising neural network can use real MR images.Type: ApplicationFiled: March 29, 2023Publication date: October 26, 2023Applicant: The Chinese University of Hong KongInventors: Shutian ZHAO, Weitian CHEN
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Patent number: 11796693Abstract: The invention relates to energy-resolved X-ray imaging apparatus and method. The present disclosure provides an apparatus for electromagnetic irradiation imaging. The apparatus includes one or more pixels, each pixel including a plurality of detector cells arranged in a row extending in a row direction. The row is configured to receive photons at an incident surface at one end of the row, and the received photons penetrate the plurality of detector cells in the row direction. The plurality of detector cells of the same row are configured to generate respective signals that collectively indicate an energy-resolved spectral profile of the photons based on the penetration of the photons into the row of detector cells.Type: GrantFiled: January 22, 2020Date of Patent: October 24, 2023Assignee: THE UNIVERSITY OF HONG KONGInventors: Xiaodong Cui, Chunlei Yang
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Patent number: 11786592Abstract: Compositions and methods for enhancing antigen-specific immunity in a subject are provided. Pharmaceutical compositions including an effective amount of an immuno-stimulatory cardiolipin as an adjuvant in combination with an antigen and methods of use thereof for stimulating protective immunity to the antigen in a subject are provided. Administration of the combination of the antigen and cardiolipin adjuvant is effective to enhance antigen-specific immunity in a subject to a greater degree than administering to the subject the same amount of the antigen alone. The active agents can be administered together or separately. In preferred forms the cardiolipin is cardiolipin species (C18:2)4. In preferred forms the antigen is formulated as a vaccine, such as an influenza vaccine. A preferred amount by weight of each reagent is about 10-40% cardiolipin to about 90-60% antigen(s), inclusive.Type: GrantFiled: May 19, 2021Date of Patent: October 17, 2023Assignee: THE UNIVERSITY OF HONG KONGInventors: Liwei Lu, Xiaohui Wang
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Patent number: 11788562Abstract: The subject invention pertains to a pneumatic, hydraulic, or otherwise inflatable or pressurized artificial muscle. Also provided are methods for making, controlling, and using such a muscle useful for prostheses, movement aids, or wearable robots to assist the movement of impaired subjects or to improve the function of healthy subjects. Muscles can be made by densely winding tension wires around pressurized expandable tubes having one or more specific geometric shapes removed from the tube cross section. The curve of output characteristics such as output force vs. contraction ratio can be adjustable by changing parameters of the sectional view of the tube. The appropriate shape of tube and related output characteristics can be selected according to application area or body part to be assisted to achieve the most flexible and optimal design for one or more muscle groups.Type: GrantFiled: May 19, 2022Date of Patent: October 17, 2023Assignee: The Chinese University of Hong KongInventors: Kai Yu Tong, Disheng Xie, Jing Shu, Junming Wang
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Patent number: 11791476Abstract: The present invention provides a method of fabricating a catalytic reaction material. A solution of a carbon precursor compound and a noble metal precursor compound is prepared; the carbon precursor compound includes a salt component. The solution is recrystallized the solution to form recrystallized complexes including both the carbon precursor compound and the noble metal precursor compound. The recrystallized complexes are calcined to create a salt template for generation of two-dimensional carbon nanosheets embedding isolated noble metal atoms. Further calcining and washing decomposes the salt template to produce two two-dimensional carbon nanosheets embedding isolated noble metal atoms, each nanosheet having a thickness of approximately 1 to approximately 10 nanometers.Type: GrantFiled: October 13, 2021Date of Patent: October 17, 2023Assignee: City University of Hong KongInventors: Jian Lu, Yangyang Li, Feixiang Ma
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Publication number: 20230322986Abstract: The present disclosure provides a humidity-stiffening polymer material, and a preparation method therefor and a use thereof. The humidity-stiffening polymer material includes the following raw materials: a monomer, an ionic liquid, a salt, a cross-linking agent and an initiator, wherein the monomer includes benzyl methacrylate, the ionic liquid includes an imidazole-based ionic liquid, and the salt includes a hygroscopic salt. The method for preparing the humidity-stiffening polymer material includes: mixing the raw materials to obtain a precursor liquid, performing reaction on the mixture after degassing, and drying the mixture to obtain the humidity-stiffening polymer material. The humidity-stiffening polymer material is applied to actuators, soft robots and wearable biomedical devices based on bionic design. The present disclosure provides a humidity-stiffening polymer material, and a preparation method therefor and a use thereof.Type: ApplicationFiled: November 2, 2022Publication date: October 12, 2023Applicant: THE CHINESE UNIVERSITY OF HONG KONG, SHENZHENInventors: Shiping ZHU, Xiaoqing MING, Le YAO, Qi ZHANG
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Patent number: 11784587Abstract: An electronic sensing apparatus and a method of producing the electronic sensing apparatus includes a triboelectric generator encapsulated between a bottom substrate and a top encapsulation layer, wherein the triboelectric generator is arranged to generate a triboelectric sensing signal in response to a deformation of the bottom substrate and/or the top encapsulation layer.Type: GrantFiled: December 20, 2021Date of Patent: October 10, 2023Assignee: City University of Hong KongInventors: Xinge Yu, Jiahui He
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Patent number: 11784341Abstract: The invention provides novel high-energy density and low-cost flow electrochemical devices incorporating solid-flow electrodes, and further provides methods of using such electrochemical devices. Included are anode and cathode current collector foils that can be made to move during discharge or recharge of the device. Solid-flow devices according to the invention provide improved charging capability due to direct replacement of the conventional electrode stack, higher volumetric and gravimetric energy density, and reduced battery cost due to reduced dimensions of the ion-permeable layer.Type: GrantFiled: December 7, 2016Date of Patent: October 10, 2023Assignee: The Chinese University of Hong KongInventors: Yi-Chun Lu, Zengyue Wang, Long Yin Simon Tam, Qingli Zou, Guangtao Cong
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Patent number: 11782212Abstract: A guided-wave-driven metasurface antenna includes an input for receiving a guided wave; an output for outputting a free-space wave; and a spatial frequency mixer connected between the input and the output for converting the guided wave to the free-space wave. The spatial frequency mixer is implemented by a metasurface of the antenna. The superheterodyne metasurface can be fabricated with high accuracy using lithography step similar to conventional waveguides made by the well-established semiconductor processing technology, making their integration with PICs straightforward.Type: GrantFiled: May 13, 2022Date of Patent: October 10, 2023Assignee: City University of Hong KongInventors: Gengbo Wu, Shuyan Zhu, Stella W. Pang, Chi Hou Chan
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Patent number: 11779398Abstract: A neurosurgical robotic system for bilateral stereotaxy that integrates intraoperative MRI guidance is provided. The robotic system can be implemented in regular diagnostic MRI facilities. Navigation for bilateral brain targets can be performed independently and simultaneously. The robotic system includes a plurality of manipulators, a needle guide (31), a needle (12) disposed within the needle guide (31); and a mounting base (39) with a plurality of screw holes for bone mounting.Type: GrantFiled: January 24, 2019Date of Patent: October 10, 2023Assignee: The University of Hong KongInventors: Ziyan Guo, Ka Wai Kwok, Ziyang Dong, Kit Hang Brian Lee, Hing Choi Fu, Chim Lee Cheung
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Patent number: 11772761Abstract: An underwater vehicle for performing a variety of linear motions and turning motions with better stability and agility is disclosed. The underwater vehicle includes a main body, a front-drive mechanism, a rear-drive mechanism, and a steering assembly. The main body has a front end and a rear end, which defines a longitudinal axis extending from the front end to the rear end of the main body. The front-drive mechanism is connected to the main body to provide a forward propelling force in a direction parallel to the longitudinal axis. The steering assembly is fixed to the rear end and coupled to the rear-drive mechanism. The steering assembly is configured to rotate the rear-drive mechanism with respect to the longitudinal axis by a body angle for providing a lateral force on the main body.Type: GrantFiled: September 23, 2021Date of Patent: October 3, 2023Assignee: City University of Hong KongInventors: Yajing Shen, Jiahai Shi, Panbing Wang, Xiong Yang
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Patent number: 11774183Abstract: The present invention provides a heat transferring device and a method for making thereof. The heat transferring device has a thermal conducting substrate and a porous layer. The thermal conducting substrate has a plurality of protrusions and concave bottom surfaces. The concave bottom surfaces are located between the protrusions. The porous layer is embedded between the protrusions. The present invention also provides a high temperature material transferring system comprising a cylindrical container and the heat transferring device disposed on the surface of the cylindrical container.Type: GrantFiled: September 1, 2021Date of Patent: October 3, 2023Assignee: City University of Hong KongInventors: Zuankai Wang, Mengnan Jiang, Yang Wang
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Patent number: 11774367Abstract: A Raman detection system has a Raman spectrometer and a fixing light shielding stand. One end of the fixing light shielding stand is fixedly connected to the Raman spectrometer, and the other end is disposed with an entrance groove for a needle-like SERS probe to enter. A slot for fixing the needle-like SERS probe is formed at an end of the entrance groove, and the slot and the needle-like SERS probe match in shape and size. The Raman detection system has a fixing light shielding device with a dark color groove and a focal length. The groove can be used for limiting the rolling of the curved surface structure of the needle-like SERS probe. A laser can be focused on the curved surface more accurately by adjusting the distance from the instrument detector to the SERS probe.Type: GrantFiled: September 29, 2022Date of Patent: October 3, 2023Assignee: City University of Hong Kong Shenzhen Futian Research InstituteInventors: Jian Lu, Binbin Zhou, Junda Shen, Zebiao Li, Yangyang Li
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Publication number: 20230301584Abstract: The present disclosure relates to a nanosensor for real-time monitoring of wound healing, a manufacturing method thereof, and a real-time monitoring system for wound healing using the same. A nanosensor according to example embodiments includes a biomarker for detecting mRNA and a reference gene on gold nanoparticles, thereby providing an objective indicator through monitoring of wound healing, enabling monitoring of wound healing through direct monitoring using real-time fluorescence by including a fluorescent marker in a nanoflare, and enabling evaluation of a whole wound healing process in normal and patient groups (diabetes) through real-time monitoring. In addition, the nanosensor according to the example embodiments has advantages of shortening synthesis time and improving efficiency by 30% through integration of a novel synthesis method (freezing method) rather than an existing synthesis method (salt aging).Type: ApplicationFiled: November 21, 2022Publication date: September 28, 2023Applicants: Korea University Research and Business Foundation, City University of Hong KongInventors: Woo young JANG, Jangsun HWANG, Chenjie XU