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A Highly Error-Prone Orthogonal Replication System For Targeted Continuous Evolution In Vivo

Inventors at UC Irvine have engineered an orthogonal DNA replication system capable of rapid, accelerated continuous evolution. This system enables the directed evolution of specific biomolecules towards user-defined functions and is applicable to problems of protein, enzyme, and metabolic pathway engineering.

Hydrogel Scaffold for 3D Tissue Culture

Prof. Jin Nam and his colleagues at the University of California, Riverside have developed a hybrid scaffold which combines a thermosensitive hydrogel, poly(ethylene glycol)-poly(N-isopropylacrylamide) (PEG-PNIPAAm), with a biodegradable polymer, poly(ε-caprolactone) (PCL), into a composite, electrospun microfibrous structure. The electrospun structure enables a structurally self-supporting hybrid scaffold which requires a simple inoculation of cell-containing media to encapsulate cells in a 3D hydrogel within a network of PEG-PNIPAAm/PCL microfibers. This novel hybrid scaffold enhanced chondrogenic differentiation of human mesenchymal stem cells (hMSCs), resulting in superior mechanical properties of the cell/scaffold constructs as compared to those of the pure forms of its constitutive components. The hybrid scaffold enables a  single-step uniform cell seeding process to inoculate cells within a 3D hydrogel with the potential for various tissue engineering applications. Figure 1. Schematic of electrospun hybrid scaffolds for moldless 3D cell encapsulation in hydrogel. Thermosensitive PEG-PNIPAAm composited with PCL was electrospun to produce thick (~ 2.5 mm) hybrid scaffolds composed of micro-sized fibers. Large pores allow uniform cell infiltration upon seeding throughout the thickness of the scaffolds at room temperature. Subsequent increase in temperature to 37 °C induces the PEG-PNIPAAm to gelate to encapsulate the uniformly seeded cells in 3D.  

Compositions Of Polyion Complex Polypeptide Hydrogels

UCLA researchers in the Department of Bioengineering have developed a new class of cell-compatible copolypeptide hydrogels that possess chain conformation directed polyion complex (PIC) supramolecular architectures.

Respiratory Monitor For Asthma And Other Pulmonary Conditions

A patch sensor that is able to continuously monitor breathing rate and volume to diagnose pulmonary function and possibly predict and possibly prevent fatal asthma attacks.

Immunotherapy Against Aß-Mediated Inhibition of ADAM10 Activity

UCLA researchers in the Department of Neurology have developed a novel immunotherapy targeting a previously unexplored pathway of Aβ toxicity in Alzheimer’s disease.

Plasmon Resonance Enhanced Optical Means for Surface Disinfection

UCLA researchers in the Department of Materials Science and Engineering have developed a novel surface disinfection material for use in hospital coatings.

Breast Milk as a Source, Incubation/Storage Medium, and Delivery System for Infant Mucosal Immunity Bacteriophage

Researchers at the University of California, Davis have developed a method to harvest and enrich symbiotic bacteriophage to promote bacterial immunity.

Injectable Novel Therapeutic for Post-Myocardial Infarction Repair

Cardiovascular disease manifested as a myocardial infarction (MI) usually results in the irreversible death of heart muscle cells. While medical treatments can mitigate some symptoms, they often fail to prevent heart failure after a MI. The current standard of care for MI relies on surgical intervention via a coronary artery bypass. An alternative therapeutic approach has been taken in the last few years with the introduction of biomaterials designed to promote neovascularization after an MI and help prevent negative left ventricle remodeling by increasing infarct wall thickness and decreasing volume, fibrosis, and infarct size. 

Hydrocarbon Production, H2 Evolution And CO2 Conversion By Whole Cells Or Engineered Azotobacter Vinelandii Strains

Using metal catalysts in industrial synthesis of hydrocarbons for fuels can be costly, inefficient, and harmful to the environment. This simple approach uses genetically-modified soil bacterium to synthesize valuable hydrocarbons using recycled components. This novel process is environmentally-friendly and is more cost- and energy-efficient than current industrial synthesis.

Anti-Microbial Contact Lens With Ocular Drug Delivery

Anti-microbial, anti-fungal drug eluting contact lens for the controlled release of ophthalmic therapeutics.

Novel Anti-Bacterial, Anti-Fungal Nanopillared Surface

Medical devices are susceptible to contamination by harmful microbes, such as bacteria and fungi, which form biofilms on device surfaces. These biofilms are often resistant to antibiotics and other current treatments, resulting in over 2 million people per year suffering from diseases related to these contaminating microbes. Death rates for many of these diseases are high, often exceeding 50%. Researchers at UCI have developed a novel anti-bacterial and anti-fungal biocomposite that incorporates a nanopillared surface structure that can be applied as a coating to medical devices.

THERMOSTABLE RNA-GUIDED ENDONUCLEASES AND METHODS OF USE THEREOF (GeoCas9)

96 Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Calibri",sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} The CRISPR-Cas system is now understood to confer bacteria and archaea with acquired immunity against phage and viruses. CRISPR-Cas systems consist of Cas proteins, which are involved in acquisition, targeting and cleavage of foreign DNA or RNA, and a CRISPR array, which includes direct repeats flanking short spacer sequences that guide Cas proteins to their targets. The programmable nature of these systems has facilitated their use as a versatile technology that is revolutionizing the field of genome manipulation. There is a need in the art for additional CRISPR-Cas systems with improved cleavage and manipulation under a variety of conditions and ones that are particularly thermostable under those conditions.     UC researchers discovered a new type of RNA-guided endonuclease (GeoCas9) and variants of GeoCas9.  GeoCas9 was found to be stable and enzymatically active in a temperature range of from 15°C to 75°C and has extended lifetime in human plasma.  With evidence that GeoCas9 maintains cleavage activity at mesophilic temperatures, the ability of GeoCas9 to edit mammalian genomes was then assessed.  The researchers found that when comparing the editing efficiency for both GeoCas9 and SpyCas9, similar editing efficiencies by both proteins were observed, demonstrating that GeoCas9 is an effective alternative to SpyCas9 for genome editing in mammalian cells.  Similar to CRISPR-Cas9, GeoCas9 enzymes are expected to have a wide variety of applications in genome editing and nucleic acid manipulation.   

Biomass-Derived Polymers And Copolymers Incorporating Monolignols And Their Derivatives

UCLA researchers in the Departments of Bioengineering, Chemistry and Biochemistry have developed a novel synthetic strategy for the fabrication of biomass-derived polymers incorporating underutilized lignin derivatives.

Microfluidics Device For Digestion Of Tissues Into Cellular Suspension

A microfluidic device that separates single cells from whole tissue in a rapid and gentle manner using hydrodynamic fluid flow. The separated single cell suspensions can then be used in tissue engineering applications, regenerative medicine and the study of cancer.

Aptamer functionalized shrink-induced high surface area electrochemical sensors

A low-cost method of manufacturing a, rough high surface area electrodes with a dissolvable polymer coating to improve surface wettability and electrochemical sensing.

Update To Degradable Trehalose Glycopolymers

UCLA researchers in the Department of Chemistry & Biochemistry have designed an improved version of trehalose-based glycopolymer as a degradable alternative to PEG for the purpose of stabilizing a protein during storage and transport.

Alpha1–2-Fucosyltransferase for Enzymatic Synthesis of Alpha1–2-linked Fucosylated Glycans

Researchers at the University of California, Davis have discovered an alpha1–2-fucosyltransferase that efficiently catalyzes the synthesis of alpha1–2-linked fucosylated glycans that can contain different internal glycans.

Renewable Energy Synthesis System

Researchers at the University of California, Davis have developed a novel system for acetoin and 2,3-butanediol synthesis from carbon dioxide.

Metal-free affinity media/agents for the selective capture of histidine-rich peptide sequences

The present invention utilizes metal-free synthetic polymer-based materials for the purification of peptides and proteins containing or being fused with histidine-rich sequences, which does not damage the function of the target protein and is less costly.

A vaccination strategy against Chlamydia and other sexually transmitted diseases

No vaccines exist against the common sexually-transmitted disease, Chlamydia. The current invention is a novel vaccination formulation wherein fragments from two different microbial proteins, one each from a Chlamydia species and a Neisseria species are fused together. This novel fusion protein is proposed as a robust vaccine to provide protection against Chlamydia.

Use of mutant Kv7.2 channels for anti-epileptic and pain therapies

During seizures or pain-induced inflammation, excess chemical mediators suppress potassium channels mediating neuronal activity and thereby inactivate new generation anti-epileptic drugs and painkillers acting on those channels. The invention describes a gene therapy using a genetically-engineered potassium channel that reduces adverse effects by silencing neuronal hyperactivity while maintaining normal neuronal activity in the presence of chemical mediators to treat epilepsy and pain.

Methods for purifying and treating wounds with a proprietary biological agent, and to coat biomaterials designed to be synthetic substrates, aimed at promoting healing.

This invention describes methods for using a proprietary biological agent to improve the quality and speed of wound healing, and for coating a biomaterial to serve as an artificial epithelium for severe wounds. Also described are methods to produce high yields of the biological agent and of its purification.

A Synthetic Peptide for Use in Diagnosis and Treatment of Myasthenia Gravis

Researchers at the University of California, Davis have developed a peptide that could be used in the diagnosis and treatment of Myasthenia Gravis.

Thrombospondins as a target to treat neuropathic pain

Neuropathic pain is a common problem, though, there are few existing pain medications have specific targets to treat this type of pain, and often lack efficacy and tolerance. The invention identifies specific proteins and related genes as targets for treating neuropathic pain in an animal model.

Ligands for Improved Angiogenesis and Endothelialization of Blood Contacting Devices

Researchers at the University of California, Davis have discovered novel targeting ligands that can specifically bind and capture endothelial cells and endothelial progenitors for improved endothelialization and angiogenesis of medical devices and scaffolds.

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