Research Archive
![](https://chem.unc.edu/wp-content/uploads/2023/03/Divergent-Functionalization-of-Alkynes-Enabled-by-Organic-Photoredox-Catalysis.png)
Herein, we communicate a strategy for the divergent functionalization of alkynes with photoexcited acridinium organic dyes, presumably via the formation of vinyl cation radicals as key intermediates.
![](https://chem.unc.edu/wp-content/uploads/2023/03/Injectable-Polysaccharide-Hydrogels-as-Localized-Nitric-Oxide-Delivery-Formulations.png)
A series of injectable polysaccharide hydrogels are prepared with oxidized dextran and diethylenetriamine-modified carboxymethylcellulose (CMC) or hyaluronic acid (HA).
![](https://chem.unc.edu/wp-content/uploads/2023/03/Investigating-Electrosprayed-Droplets-Using-Particle-into-Liquid-Sampling-for-Nanoliter-Electrochemical-Reactions.png)
The current work introduces a new method utilizing PILSNER for the examination of the particles generated during ESI using simple analysis techniques with a commercially available potentiostat.
![](https://chem.unc.edu/wp-content/uploads/2023/03/Analysis-of-Liquid-Particles-in-Aerosols-via-Charge-Induction-Amperometry-ALPACA-for-Rapid-Electrospray-Droplet-Charge-Analysis.png)
To this end we introduce analysis of liquid particles in aerosols via charge-induction amperometry (ALPACA), an extremely simple potentiostat-based technique capable of on-line, rapid measurement of the aggregate charge of aerosol particles.
![](https://chem.unc.edu/wp-content/uploads/2023/03/A-Catalytic-Method-for-the-Enantioselective-Synthesis-of-α-Quaternary-Ketones-α-Ketoesters-and-Aldehydes.png)
A practical method for the efficient and enantioselective preparation of versatile ketones and aldehydes that contain an α-quaternary stereocenter is described.
![](https://chem.unc.edu/wp-content/uploads/2023/03/A-Permissive-Amide-N-Methyltransferase-for-Dithiolopyrrolones.png)
Here, we identified and characterized the amide N-methyltransferase DtpM that is encoded >400 kb outside of the thiolutin gene cluster.
![](https://chem.unc.edu/wp-content/uploads/2023/03/Circular-Upcycling-of-Bottlebrush-Thermosets.png)
The crosslink density was tuned by loading the functionalized networks with a controlled fraction of dormant crosslinkers and crosslinker scavengers, such as furan-capped bis-maleimide and anthracene, respectively.
![](https://chem.unc.edu/wp-content/uploads/2023/03/Detection-and-differentiation-of-per-and-polyfluoroalkyl-substances-PFAS-in-water-using-a-fluorescent-imprint-and-report-sensor-array.png)
Here we show that dynamic combinatorial libraries (DCLs) with simple building blocks can be templated with a fluorophore and subsequently used as sensors to form an array that differentially detects each PFAS species and various mixtures thereof.
![](https://chem.unc.edu/wp-content/uploads/2023/03/Double-stranded-RNA-drives-SARS-CoV-2-nucleocapsid-protein-to-undergo-phase-separation-at-specific-temperatures.png)
We identify two separate and distinct double-stranded, RNA motifs (dsRNA stickers) that promote N-protein condensation.
![](https://chem.unc.edu/wp-content/uploads/2023/03/A-quantitative-model-of-charge-injection-by-ruthenium-chromophores-connecting-femtosecond-to-continuous-irradiance-conditions.png)
A kinetic framework for the ultrafast photophysics of tris(2,2-bipyridine)ruthenium(II) phosphonated and methyl-phosphonated derivatives is used as a basis for modeling charge injection by ruthenium dyes into a semiconductor substrate.
![](https://chem.unc.edu/wp-content/uploads/2023/03/Surface-Immobilization-of-a-ReI-Tricarbonyl-Phenanthroline-Complex-to-Si111-through-Sonochemical-Hydrosilylation.png)
A sonochemical-based hydrosilylation method was employed to covalently attach a rhenium tricarbonyl phenanthroline complex to silicon(111).
![](https://chem.unc.edu/wp-content/uploads/2023/03/Quantum-Confinement-and-Decoherence-Effect-on-Excited-Electron-Transfer-at-the-Semiconductor–Molecule-Interface.png)
First-principles dynamics simulation is used to study how excited electron dynamics in a type-II semiconductor–molecule interface is affected when the surface of a bulk semiconductor is replaced with that of a quantum dot.