Research Archive
![](https://chem.unc.edu/wp-content/uploads/2021/05/Coating-small-diameter-ePTFE-vascular-grafts-with-tunable-polydiol-co-citrate-co-ascorbate-elastomers-to-reduce-neointimal-hyperplasia.png)
This work is focused on the development of poly(diol-co-citrate-co-ascorbate) (POCA) elastomers with tunable properties for coating ePTFE vascular grafts.
![](https://chem.unc.edu/wp-content/uploads/2021/04/Catalytic-Dehydrogenation-of-Alkanes-by-PCP-Pincer-Iridium-Complexes-Using-Proton-and-Electron-Acceptors.png)
Here, we report the use of pincer-ligated iridium complexes to achieve alkane dehydrogenation by proton-coupled electron transfer, using pairs of oxidants and bases as proton and electron acceptors.
![](https://chem.unc.edu/wp-content/uploads/2021/04/Toxicological-Responses-of-α-Pinene-Derived-Secondary-Organic-Aerosol-and-Its-Molecular-Tracers-in-Human-Lung-Cell-Lines.png)
In this study, we quantified an increasing concentration response of three well-established α-pinene SOA tracers (pinic, pinonic, and 3-methyl-1,2,3-butanetricarboxylic acids) and a full mixture of α-pinene SOA in A549 (alveolar epithelial carcinoma) and BEAS-2B (bronchial epithelial normal) lung cell lines.
![](https://chem.unc.edu/wp-content/uploads/2021/04/Scaling-of-Polymer-Solutions-as-a-Quantitative-Tool.png)
Here, we demonstrate how to obtain these parameters from the concentration dependence of solution viscosity. The centerpiece of this approach is the scaling relationship between solution correlation length (blob size) ξ = lgν/B and the number of monomers per correlation blob g for polymers with monomer projection length l.
![](https://chem.unc.edu/wp-content/uploads/2021/04/Protein-complex-stability-in-cells-and-in-vitro-under-crowded-conditions.png)
We review quantitative, wet-experiment based efforts aimed at understanding how and why high concentrations of small molecules, synthetic polymers, biologically relevant cosolutes and the interior of living cells affect the energetics of protein-protein interactions.
![](https://chem.unc.edu/wp-content/uploads/2021/04/Revealing-Dynamic-Rotation-of-Single-Graphene-Nanoplatelets-on-Electrified-Microinterfaces.png)
Here, we combine optical microscopy, single-entity electrochemistry, and numerical simulations to elucidate the dynamic motion of graphene nanoplatelets at a gold ultramicroelectrode (radius ∼5 μm).
![](https://chem.unc.edu/wp-content/uploads/2021/04/Dynamical-transition-orbitals-A-particle-hole-description-in-real-time-TDDFT-dynamics.png)
We expand the concept of natural transition orbitals in the context of real-time time-dependent density functional theory (RT-TDDFT) and show its application in practical calculations.