We demonstrate nonadiabatic Thouless pumping of electrons in trans-polyacetylene in the framework of Floquet engineering using first-principles theory. We identify the regimes in which the quantized pump is operative with respect to the driving electric field for a time-dependent Hamiltonian.
In this Perspective, we describe the development of several nonlinear optical techniques designed to elucidate the relaxation processes induced by light absorption in layered perovskite systems
The DNA-guided assembly of biohybrid sequence-defined poly(phosphodiester)s was investigated. These polymers contain long non-natural segments covalently connected to single-stranded DNA sequences. These biohybrid structures were synthesized by automated phosphoramidite chemistry using both nucleoside and abiological phosphoramidite monomers.
Herein, we report the application of redox-active chemical probes (E◦′ = −0.48 to −1.9 V vs Fc+/0) coupled with spectroscopic tools (nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS), and UV–vis–NIR) to gain insight into the molecular-level nature and reactivity of defects at PbS QD surfaces.
This review details the progress toward the electroanalytical detection and evaluation of single enzyme kinetics largely focused on the nanoimpact method, a chronoamperometric detection strategy that monitors the change in the current-time profile associated with stochastic collisions of freely diffusing entities (e.g., enzymes) onto a microelectrode or nanoelectrode surface.
This study highlights the utility of plant defensin γ-core motif synthetic analogs for characterization of novel defensin activity.
One exciting subset of single-entity electrochemistry, and the topic of this review, is the study of reactions in nanoreactors of subfemtoliter (10−15 L) volumes with a particular focus on nanoparticle synthesis.
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.
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.
Herein, we demonstrate the β-functionalization of saturated aza-heterocycles enabled by a two-step organic photoredox catalysis approach.
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.