Bi, Liya Wang, Yufei Wang, Zhe Do, Alexandria Fuqua, Alexander Balto, Krista P Zhang, Yanning Figueroa, Joshua S Pascal, Tod A Tao, Andrea R
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The structural and chemical properties of metal nanoparticles are often dictated by their interactions with molecular ligand shells. These interactions are highly material-specific and can vary significantly even among elements within the same group or materials with similar crystal structure. In this study, we surveyed the heterogeneous interactio...
Armstrong, Fraser A Herold, Ryan Schofield, Christopher
The catalytic action of enzymes of a cascade trapped within a mesoporous electrode material is simultaneously energized, controlled and observed through the efficient, reversible electrochemical NAD(P)(H) recycling catalyzed by one of the enzymes. In their nanoconfined state, nicotinamide cofactors are tightly channeled current carriers, mediating ...
Kumar, Pawan Abutaha, Anas Wu, Gang Gordon, Madeleine P Recatala-Gomez, Jose Urban, Jeffrey J Hippalgaonkar, Kedar
Thermoelectric properties of conducting polymers typically suffer from molecular chain disordering, as charge transport is predominantly controlled by morphology. This is especially more problematic when counterions are introduced to tune the carrier concentration for optimal thermoelectric performance, which disturbs the morphology further. In thi...
Brunicardi, Jackson EH Small, Jeramiah J Padilla, Maria Sophia Teresa Lee Carrera Plancarte, Jovanna I Nowick, James S
This paper reports highly active analogues of clovibactin in which the rare, noncanonical amino acid d-hydroxyasparagine is replaced with the commercially available amino acid d-threonine. Sequential mutation of leucines 2, 7, and 8 to the more hydrophobic homologue cyclohexylalanine dramatically increases the antibiotic activity of d-Thr5-clovibac...
Liu, Tianying Wang, Pan Li, Wei Wang, David Z Lekamge, Damith D Chen, Boqiang Houle, Frances A Waegele, Matthias M Wang, Dunwei
As a vital process for solar fuel synthesis, water oxidation remains a challenging reaction to perform using durable and cost-effective systems. Despite decades of intense research, our understanding of the detailed processes involved is still limited, particularly under photochemical conditions. Recent research has shown that the overall kinetics ...
Pimentel, Ashley E Pham, Lan D Carta, Veronica Su, Timothy A
We report the first conductance measurements of [n]staffane (bicyclopentane) oligomers in single-molecule junctions. Our studies reveal two quantum transport characteristics unique to staffanes that emerge from their strained bicyclic structure. First, though staffanes are composed of weakly conjugated C-C σ-bonds, staffanes carry a shallower condu...
Gao, Linfeng Nowakowska, Maria Barbara Selby, Katja Przykopanski, Adina Chen, Baohua Krüger, Maren Douillard, François Paul Lam, Kwok-ho Chen, Peng Huang, Ting
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Botulinum neurotoxins (BoNTs) rank among the most potent toxins and many of them are produced by bacteria carrying the orfX gene cluster that also encodes four nontoxic proteins (OrfX1, OrfX2, OrfX3 and P47). The orfX gene cluster is also found in the genomes of many non-BoNT-producing bacteria, often alongside genes encoding oral insecticidal toxi...
Liang, Tiantian Lyu, Zhen Wang, Ye Zhao, Wenyan Sang, Ruocheng Cheng, Gui-Juan Ye, Fei
Nitroarenes are readily accessible bulk chemicals and can serve as versatile starting materials for a series of synthetic reactions. However, due to the inertness of the CAr-NO2 bond, the direct denitrative substitution reaction with unactivated nitroarenes remains challenging. Chemists rely on sequential reduction and diazotization followed by the...
Szalkowski, Marcin Kotulska, Agata Dudek, Magdalena Korczak, Zuzanna Majak, Martyna Marciniak, Lukasz Misiak, Malgorzata Prorok, Katarzyna Skripka, Artiom Schuck, P James
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Photon avalanche (PA)-where the absorption of a single photon initiates a 'chain reaction' of additional absorption and energy transfer events within a material-is a highly nonlinear optical process that results in upconverted light emission with an exceptionally steep dependence on the illumination intensity. Over 40 years following the first demo...
Athanasopoulou, Angeliki A Abbasi, Parisa Alexandropoulos, Dimitris I Hayward, John J Beavers, Christine M Teat, Simon J Wernsdorfer, Wolfgang Mayans, Júlia Escuer, Albert Pilkington, Melanie
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A high-nuclearity {Ni18} complex (1) with a unique 'flying saucer' motif has been prepared from the organic chelate, α-methyl-2-pyridine-methanol (mpmH), in conjunction with bridging azido (N3 -) and peroxido (O2 2-) ligands. Magnetic susceptibility measurements revealed the presence of both ferro- and antiferromagnetic exchange interactions betwee...