Abstract: The present invention relates to a culture media system that is useful for the isolation and epigenetically stable propagation of normal stem cells in culture, wherein the stem cells are derived from stratified epithelial tissues and cancer stem cells from epithelial cancers. In certain embodiments, the culture system is a feeder-free system.
Type:
Application
Filed:
October 9, 2020
Publication date:
May 16, 2024
Applicant:
University of Houston System
Inventors:
Frank McKEON, Wa XIAN, Matthew P. VINCENT, Jingzhong XIE, Wei RAO
Abstract: Described herein are polymerization catalysts having a structure according to formula (1): wherein is a diimine ligand, A? is a counter anion, and R2 is a fluorinated alkane, alkene or alkyne, a fluorinated aromatic, a fluorinated cycloalkane or cylcoalkene, a fluorinated heteroaromatic, or a fluorinated heterocyclic. Also described herein are polymers having a terminus having a structure according to Formula (3): wherein R2 is a fluorinated alkane, alkene or alkyne, a fluorinated aromatic, a fluorinated cycloalkane or cylcoalkene, a fluorinated heteroaromatic, or a fluorinated heterocyclic.
Abstract: A method for growing bulk boron arsenide (BA) crystals, the method comprising utilizing a seeded chemical vapor transport (CVT) growth mechanism to produce single BAs crystals which are used for further CVT growth, wherein a sparsity of nucleation centers is controlled during the further CVT growth. Also disclosed are bulk BAs crystals produced via the method.
Type:
Grant
Filed:
June 20, 2019
Date of Patent:
May 7, 2024
Assignee:
UNIVERSITY OF HOUSTON SYSTEM
Inventors:
Zhifeng Ren, Fei Tian, Gang Chen, Bai Song, Ke Chen, Li Shi, Xi Chen, Sean Sullivan, David Broido, Navaneetha Krishnan Ravichandran
Abstract: A system configured to capture CO2 and able to be washed of the captured CO2 includes a material including an ionic liquid configured to capture CO2 in response to exposure to a gas comprising CO2 and to a thermal energy source and an aerogel holding the ionic liquid therein. The system may also include a washing solution configured to wash the captured CO2 from the material.
Type:
Grant
Filed:
October 6, 2022
Date of Patent:
April 23, 2024
Assignee:
University of Houston System
Inventors:
Hadi Ghasemi, Varun Kashyap, T. Randall Lee, Riddhiman Medhi
Abstract: Provided herein are phosphors of the general molecular formula: (A2-2xEux)(Mg1-yCay)PO4F wherein the variables are as defined herein. Methods of producing the phosphors are also provided. In some aspects, the present disclosure provides light-emitting devices comprising these phosphors.
Abstract: A portable inspecting device includes PZT transducers and performs active sensing to measure the characteristics of bolted connections. The PZT transducers are mounted on opposing ends of spring-loaded rods and can be moved apart to accommodate a structure for testing. The springs cause the PZT transducers to push against opposing parts of the structure in a stable but temporary fashion. The device can be physically moved to inspect the status and health of multiple different bolted connections.
Type:
Grant
Filed:
October 18, 2019
Date of Patent:
March 26, 2024
Assignee:
UNIVERSITY OF HOUSTON SYSTEM
Inventors:
Gangbing Song, Jinwei Jiang, Siu Chun Michael Ho, Zheng Chen
Abstract: Embodiments of the present disclosure pertain to methods of synthesizing a peptide by associating at least one isolated ribosomal RNA (rRNA) fragment with a plurality of transfer RNA fragments linked to amino acids (tRNA fragments). The at least one rRNA fragment includes at least one domain that associates with the tRNA fragments. The at least one rRNA fragment catalyzes the synthesis of the peptide through peptidyl transfer of the amino acids from the tRNA fragments independently of messenger RNA (mRNA) templates. Additionally, the peptidyl transfer occurs independently of proteins. Further embodiments of the present disclosure pertain to systems for synthesizing a peptide. Such systems include the rRNA fragments of the present disclosure and optionally a plurality of tRNA fragments.
Abstract: An MOCVD system fabricates high quality superconductor tapes with variable thicknesses. The MOCVD system can include a gas flow chamber between two parallel channels in a housing. A substrate tape is heated and then passed through the MOCVD housing such that the gas flow is perpendicular to the tape's surface. Precursors are injected into the gas flow for deposition on the substrate tape. In this way, superconductor tapes can be fabricated with variable thicknesses, uniform precursor deposition, and high critical current densities.
Abstract: An ultra-thin film superconducting tape and method for fabricating same is disclosed. Embodiments are directed to a superconducting tape being fabricated by processes which include removing a portion of the superconducting tape's substrate subsequent the substrate's initial formation, whereby a thickness of the superconducting tape is reduced to 15-80 ?m.
Abstract: An improved rechargeable battery may utilize materials that are entirely solid-state. The battery may utilize at least one organic active material for an electrode. The battery may utilize a cathode that comprises quinone(s). An electrolyte of the battery may be an ion-conducting inorganic compound. An anode of the battery may comprise an alkali metal. Further, a carbonyl group of the quinone(s) of the cathode may be reduced into a phenolate and coordinated to an alkali metal ion during discharge and vice versa during charging.
Abstract: A round superconductor wire and method for fabricating same are disclosed. Embodiments are directed to a round superconductor wire including at least two superconductor tapes wound on a wire former. Each superconductor tape includes: bottom stabilizer and silver layers; substrate disposed above the bottom silver layer; buffer film stack disposed above the substrate; superconductor film disposed above the buffer film stack; top silver layer disposed above the superconductor film; and top stabilizer layer disposed above the top silver layer. At least one of the bottom stabilizer layer, bottom silver layer, substrate, buffer film stack, superconductor film, top silver layer, or top stabilizer layer is of a different width, thickness, or material composition in one of the superconductor tapes than in another of the superconductor tapes. These and other embodiments achieve a round superconductor wire having improved current density in high magnetic field applications when made in small diameters.
Type:
Grant
Filed:
October 28, 2019
Date of Patent:
February 13, 2024
Assignees:
University of Houston System, AMPEERS LLC
Inventors:
Goran Majkic, Anis Ben Yahia, Wenbo Luo, Venkat Selvamanickam, Soumen Kar
Abstract: A stable water based nanofluid of graphene-based amphiphilic Janus nanosheets, where the nanofluid has a high salt-content while retaining the interfacial activities of the nanosheets. Such a nanofluid of amphiphilic Janus nanosheets may be used for enhanced oil recovery.
Abstract: The systems and methods described herein are for monitoring the tightness of bolts. The systems and methods may be used with a mechanism to apply a percussive tap and with a recording or monitoring device for detecting and recording the acoustic signals that are generated by the percussive tap. The acoustic signals generated by percussive taps applied to bolts in various looseness states are analyzed and a machine learning model is developed that allows for determining bolt looseness based on the acoustic signals.
Type:
Grant
Filed:
April 24, 2019
Date of Patent:
January 30, 2024
Assignee:
UNIVERSITY OF HOUSTON SYSTEM
Inventors:
Gangbing Song, Qingzhao Kong, Siu Chun Michael Ho, Furui Wang
Abstract: A soleus contraction measurement system includes a sensor configured to measure rotational movement when positioned on a user's foot with an X-axis oriented laterally across the user's foot, a Y-axis oriented parallel to the user's foot, a Z-axis orthogonal to the X-axis and the Y-axis, and a positive X-axis rotational movement corresponding to an increasing ankle angle, and a memory storing computer-executable instructions for controlling a processor to: measure an X-axis rotational movement, identify a positive X-axis rotational movement as a plantarflexion and a negative X-axis rotational movement as an ankle dorsiflexion, deem the plantarflexion a performed soleus contraction when the plantarflexion is immediately followed by the ankle dorsiflexion for two consecutive cycles of plantarflexion and ankle dorsiflexion, and cause performance information regarding the performed soleus contractions to be communicated.
Abstract: The present method predicts and separates dispersive surface waves from seismic data using dispersion estimation and is completely data-driven and computer automated and no human intervention is needed. The method is capable of predicting and suppressing surface waves from recorded seismic data without damaging the reflections. Nonlinear signal comparison (NLSC) is used to obtain a high resolution and accurate dispersion. Based on the dispersion, surface waves are predicted from the field recorded seismic data. The predicted surface waves are then subtracted from the original data.
Abstract: Durable antibacterial coatings are prepared by inter-diffusing zwitterionic polyurethane in acrylic polyurethane. Bacterial attachment is substantially eliminated from the surface of the coatings due to the hydrophilicity of the zwitterionic polyurethane. Long-term antibacterial properties were observed for both Gram-negative and Gram-positive bacteria even when the coatings were constantly challenged by mechanical abrasion.