An innovative reactor design that converts sunlight into hydrogen fuel efficiently and cost-effectively.

      Quantum sensing is rapidly reshaping our ability to discern chemical processes with high sensitivity and spatial resolution. Many quantum sensors are based on nitrogen-vacancy (NV) centers in diamond, with nanodiamonds (NDs) providing a promising approach to chemical quantum sensing compared to single crystals for benefits in cost, deployability, and facile integration with the analyte. However, high-precision chemical quantum sensing suffers from large statistical errors from particle heterogeneity, fluorescence fluctuations related to particle orientation, and other unresolved challenges.      To overcome these obstacles, UC Berkeley researchers have developed a novel microfluidic chemical quantum sensing device capable of high-precision, background-free quantum sensing at high-throughput. The microfluidic device solves problems with heterogeneity while simultaneously ensuring close interaction with the analyte. The device further yields exceptional measurement stability, which has been demonstrated over >103s measurement and across ~105 droplets.  Greatly surpassing the stability seen in conventional quantum sensing experiments, these properties are also resistant to experimental variations and temperature shifts. Finally, the required ND sensor volumes are minuscule, costing only about $0.63 for an hour of analysis. 

Photosynthetic organisms use “soft” macromolecular assemblies for light absorption and concentration of electronic excitation energy. These generally work via an optically inactive protein-based backbone that acts as a host matrix for an array of light-harvesting pigment molecules. The pigments are organized in space such that excited states can migrate between molecules, ultimately delivering the energy to the reaction center. 

Prof. Charles Cai and colleagues from the University of California, Riverside have developed a method for high yield co-conversion of lignocellulosic biomass to produce high octane fuel additives dimethyl furan (DMF) and methyl furans (MF). This technology works by using Cu-Ni/TiO2, a unique catalytic material that enables high yield (~90%) conversion of 5-(hydroxymethyl)furfural (HMF) and furfural (FF) sourced from lignocellulosic biomass into methylated furans (MF) in either single or co-processing schemes. This invention is advantageous compared to existing technologies due to its high yield and efficiency, low cost, and stable conversion process.   Fig 1: UCR’s furfural conversion and product yields as function of reaction time over Cu-Ni/TiO2.  

Researchers at the University of California, Davis have developed synthetic biochemical compounds that capture carbon dioxide from the atmosphere or sources such as power plants. These new derivatives mimic how some plants capture carbon dioxide from the air and use it for photosynthesis.

The inventors have developed two new CasX gene-editing platforms (DpbCasXv2 and PlmCasXv2) through rationale structural engineering of the CasX protein and gRNA, which yield improved in vitro and in vivo behaviors. These platforms dramatically increase DNA cleavage activity and can be used as the basis for further improving CasX tools.The RNA-guided CRISPR-associated (Cas) protein CasX has been reported as a fundamentally distinct, RNA-guided platform compared to Cas9 and Cpf1. Structural studies revealed structural differences within the nucleotide-binding loops of CasX, with a compact protein size less than 1,000 amino acids, and guide RNA (gRNA) scaffold stem. These structural differences affect the active ternary complex assembly, leading to different in vivo and in vitro behaviors of these two enzymes.

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Fabricating materials from naturally occurring proteins that are inherently biocompatible enables the resulting material to be easily integrated with many downstream applications, ranging from batteries to transistors. In addition, protein-based materials are also advantageous because they can be physically tuned and specifically functionalized. Inventors have developed protein-based material from structural proteins such as reflectins found in cephalopods, a molluscan class that includes cuttlefish, squid, and octopus. In a space dominated by artificial, man-made proton-conducting materials, this material is derived from naturally occurring proteins.

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.

The Liao group at UCLA has constructed a Non-Oxidative Glycolysis pathway for the synthesis of biofuel precursors with a 100% carbon conversion rate.

UCLA researchers in the Department of Electrical Engineering have developed a new portable device to rapidly measure yeast cell viability and concentration using a lab-on-chip design.

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

Researchers at the University of California, Davis have developed an efficient synthesis of 2,5- dimethylfuran (DMF) from 5- (chloromethyl)furfural (CMF).

Researchers at the University of California, Davis have developed a novel group of enzymes with the potential to facilitate production of energy dense alcohols for use in biofuel and chemical production.

A novel peptide ligation process and compound for preparing native peptide bonds under mild, aqueous, reagent-free conditions, with water and carbon dioxide as the only byproducts.

A method of production of sugar oligosaccharides and sugar oligosaccharide adonic acids directly from inexpensive cellulosic biomass. Researchers have engineered a fungus that can directly produce sugar oligosaccharides and/or sugar oligosaccharide adonic acids from cellulose without any addition of exogenous cellulase. Sugar oligosccahride adonic acids are valuable chemicals numerous applications in the pharmaceutical, cosmetic, food and chemical industries. Sugar oligosaccharides can be used as feedstock for further fuels and chemicals production.

Researchers from the UCLA have designed a cell-free system capable of producing fatty acids at a rate that is an order of magnitude higher than normal cell culture systems.

To employ energy-efficient processes for wastewater treatment while simultaneously recovering the energy contained as organic matter in wastewater would be incredibly beneficial to the environment. It has been demonstrated that utilizing microbial fuel cell (MFC) technology can generate energy, such as electricity. A MFC, or biological fuel cell, is a bioelectrochemical system that drives a current by mimicking bacterial interactions found in nature. These devices use electrogenic bacteria to oxidize  organic matter and then transfer the electrons to an electrode to generate electrical energy. UCSC researchers have been pursuing methods to enhance, harness, and utilize the energy produced directly from the degradation of organic matter in a microbial fuel cell.    

Photoelectrochemical (PEC) water splitting for solar hydrogen production has attracted extensive interest in the past few decades. In PEC water splitting, hydrogen is produced from water using sunlight and specialized semiconductors called photoelectrochemical materials. Moreover, Titanium dioxide (TiO2) has been extensively investigated as a photoanode for PEC water splitting. TiO2 photoanodes provide favorable band-edge positions, strong optical absorption, superior chemical stability and photocorrosion resistance, and are low cost. However, reported photocurrent densities and photoconversion efficiencies of TiO2 photoanodes are substantially lower than projected. UC Santa Cruz researchers have developed a strategy which demonstrates that hydrogen treatment can significantly enhance the photoconversion efficiency of TiO2 materials by improving their donor density and electrical conductivity.

The fuel cell has been considered a clean alternative to fossil-fuel-based power generation. Conventional fuel cells, however, are large solid-state devices that employ costly mechanical and chemical components and have thus witnessed very limited commercial adoption since their introduction several decades ago. Further, such devices use inorganic fuels, many of which produce substantial carbon footprints when processed and refined. Biofuel cells (BFCs) derive power from organic/biological compounds; e.g., glucose (in blood), lactate (in perspiration), and urea (in urine, wastewater, sewage) - and represent a new, compelling class of energy conversion devices. BFCs have the ability to operate under mild conditions and are envisioned to be applicable as implantable power sources.

Researchers at the University of California, Davis have developed strains of Escherichia coli capable of producing the valuable chemical feedstock, isobutyraldehyde. This strain is specifically optimized for the production of isobutyraldehyde.

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It is currently unknown how plants sense the level of CO2 in the atmosphere. Previously, no CO2 sensors have been identified in plants. Knowledge of how atmospheric CO2 is perceived could be used to manipulate plant CO2 responses so that the carbon and water use efficiency during plant growth could be optimized. The water use efficiency defines how well a plant can balance the loss of water through stomata with the net CO2 uptake for photosynthesis, and hence biomass accumulation.