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| Open AccessPhoto-accelerated fast charging of lithium-ion batteries
Here the authors show that illumination of a lithium manganese oxide cathode can induce efficient charge-separation and electron transfer processes, thus giving rise to a new type of fast lithium-ion battery charging.
- Anna Lee
- , Márton Vörös
- & Christopher S. Johnson
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Article
| Open AccessAtomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reaction
Atomically precise control over elemental distributions presents a challenge in the preparation of catalytic nanomaterials. Here the authors report Pt-Ru bimetallic dimer structures through atomic layer deposition process and identify the roles of Pt and Ru in hydrogen evolution reaction.
- Lei Zhang
- , Rutong Si
- & Xueliang Sun
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Article
| Open AccessConductive 2D metal-organic framework for high-performance cathodes in aqueous rechargeable zinc batteries
Aqueous zinc batteries are promising candidates for large scale energy storage systems but development of the cathode material remains a challenge. Here, the authors show a conductive 2D metal-organic framework involving intercalation pseudocapacitance mechanism for enhanced rate capability.
- Kwan Woo Nam
- , Sarah S. Park
- & J. Fraser Stoddart
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Article
| Open AccessRetrofitting metal-organic frameworks
Retrofitting is recognized as a powerful tool to control the structure and the corresponding functionality in MOFs. Here, the authors develop a low-cost computational framework to guide experimentalists for retrofitting experiments in MOFs and test it on the prototypical Cu3BTC2 MOF.
- Christian Schneider
- , David Bodesheim
- & Gregor Kieslich
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Article
| Open AccessCollective excitation of plasmon-coupled Au-nanochain boosts photocatalytic hydrogen evolution of semiconductor
Plasmonic effect offers a valuable opportunity to improve the efficiency of semiconductor, photocatalysts. Here, the authors show that the collective excitation of plasmonic metal, nanoparticles is more favorable for enhancing the utilization of plasmonic energy by, semiconductors.
- Guiyang Yu
- , Jun Qian
- & Gang Liu
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Article
| Open AccessAutomatic structure-based NMR methyl resonance assignment in large proteins
The structures and dynamics of large proteins can be studied with methyl-based NMR but peak assignment is still challenging. Here the authors present MethylFLYA that allows automated assignment of methyl groups and apply it to five proteins with molecular weights in the range from 28 to 358 kDa.
- Iva Pritišanac
- , Julia M. Würz
- & Peter Güntert
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Article
| Open AccessThe rapid electrochemical activation of MoTe2 for the hydrogen evolution reaction
The performance of electrocatalysts for the renewable production of hydrogen is currently limited due to the difficulty of materials design. We show that tailoring the electronic structure under applied reductive bias is key to optimal electrocatalytic performance of a 2D chalcogenide material.
- Jessica C. McGlynn
- , Torben Dankwort
- & Alexey Y. Ganin
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Article
| Open AccessModification of boron nitride nanocages by titanium doping results unexpectedly in exohedral complexes
Although isolated experimentally, the molecular structures of metal-containing boron nitride cages are still unknown. Here the authors show via DFT calculations that externally bound complexes of boron nitride fullerenes doped with a single titanium atom are strikingly more stable than the endohedral ones.
- Ruyi Li
- & Yang Wang
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Article
| Open AccessA domino reaction for generating β-aryl aldehydes from alkynes by substrate recognition catalysis
Supramolecular interactions may be responsible for higher degree of efficiency and selectivity in homogeneous catalysis. Here, the authors exploit the concept of supramolecular catalysis to develop a domino rhodium-catalyzed hydroformylation of α-alkynoic acids followed by Michael addition of nucleophiles.
- Weiwei Fang
- , Felix Bauer
- & Bernhard Breit
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Article
| Open AccessLate-stage trifluoromethylthiolation of benzylic C-H bonds
Fluoroalkylation of C-H bonds is a class of reaction highly sought after in medicinal chemistry. Here, the authors report a regioselective organophotoredox-catalyzed, trifluoromethylthiolation of benzylic C-H bonds for a wide variety of alkyl (hetero)arenes, and demonstrate its utility in continuous flow.
- Wentao Xu
- , Wenliang Wang
- & Chengjian Zhu
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Article
| Open AccessAnomalous hydrogen evolution behavior in high-pH environment induced by locally generated hydronium ions
Most of the current understanding on electrocatalysis is obtained on bulk catalysts but has not been fully verified on nanostructured materials. An alternative alkaline hydrogen evolution reaction mechanism is proposed here for nanostructured catalysts.
- Xuesi Wang
- , Chaochen Xu
- & Shi-Zhang Qiao
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Article
| Open AccessPhotoinduced hydrogen release from hydrogen boride sheets
The development of lightweight and safe hydrogen carrier materials is desirable for hydrogen energy storage and release. Here, authors prepare hydrogen boride nanosheets and observe hydrogen gas production induced by light irradiation.
- Reiya Kawamura
- , Nguyen Thanh Cuong
- & Masahiro Miyauchi
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Article
| Open AccessThree-dimensional open nano-netcage electrocatalysts for efficient pH-universal overall water splitting
Water electrolysis is considered a key reaction for future sustainable fuel generation. Here, authors report a three-dimensional RuIrOx nano-netcage catalyst that shows high activities and efficiencies for pH-universal overall water splitting.
- Zewen Zhuang
- , Yu Wang
- & Yadong Li
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Article
| Open AccessA merged copper(I/II) cluster isolated from Glaser coupling
Copper-oxygen species in organometallic complexes and enzymes are involved in many oxidation reactions. Here, the authors synthesize a macrocycle-protected mixed valence Cu(I/II) cluster with an unusually strong oxidation capacity and apply it to hydrogen atom transfer reactions with inert hydrocarbons.
- Siqi Zhang
- & Liang Zhao
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Article
| Open AccessDynamic oxygen adsorption on single-atomic Ruthenium catalyst with high performance for acidic oxygen evolution reaction
Monitoring catalyst structural changes under working conditions is crucial for understanding how catalysts operate. Here, authors examine single-atom Ru electrocatalyst by operando synchrotron spectroscopies to identify the catalytic mechanism during the acidic oxygen evolution reaction.
- Linlin Cao
- , Qiquan Luo
- & Tao Yao
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Article
| Open AccessA general synthesis approach for amorphous noble metal nanosheets
While noble metal usage in catalysis is ubiquitous, the metals’ scarcity necessitates new materials designs for efficient utilization. Here, authors report a general strategy to prepare amorphous noble metal nanosheets and find the nanomaterials to act as efficient water-splitting electrocatalysts.
- Geng Wu
- , Xusheng Zheng
- & Yadong Li
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Article
| Open AccessDeciphering nanoconfinement effects on molecular orientation and reaction intermediate by single molecule imaging
Nanoconfinement effects on changing molecular transport and reaction kinetics in heterogeneous catalysis have been widely recognized. Here, the authors design a core-shell nanocatalyst with aligned linear nanopores to uncover nanoconfinement effects on catalytic activity and adsorption strength by single molecule imaging.
- Bin Dong
- , Yuchen Pei
- & Ning Fang
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Article
| Open AccessSelf-assembling peptides imaged by correlated liquid cell transmission electron microscopy and MALDI-imaging mass spectrometry
Peptide self-assembly into fibres is prevalent in nature in normal tissue and in degenerative diseases. Here, the authors report on the coupling of liquid cell TEM with MALDI-imaging mass spectrometry to study processes of peptide fibre formation, in solution, in real time with nanoscale resolution.
- Mollie A. Touve
- , Andrea S. Carlini
- & Nathan C. Gianneschi
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Article
| Open AccessInterfacial oxygen vacancies yielding long-lived holes in hematite mesocrystal-based photoanodes
The performance of hematite (α-Fe2O3) photoanodes is limited by fast charge recombination. Here, authors develop hematite mesocrystal-based photoanodes with abundant interfacial oxygen vacancies for highly efficient solar water splitting under back illumination.
- Zhujun Zhang
- , Izuru Karimata
- & Takashi Tachikawa
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Article
| Open AccessConcerted dynamics of metallo-base pairs in an A/B-form helical transition
Metal-mediated base pairs expand the repertoire of nucleic acid structures and dynamics. Here, the authors prepared a metallo-DNA duplex including two C-Hg(II)-T base pairs separated by six normal Watson-Crick base pairs and investigated its solution structure and dynamics using NMR spectroscopy.
- Olivia P. Schmidt
- , Simon Jurt
- & Nathan W. Luedtke
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| Open AccessSingle- and multi-component chiral supraparticles as modular enantioselective catalysts
Nanoscale biological assemblies play crucial roles in all living systems and display a variety of chemical functionalities. Here the authors show that it is possible to replicate some of the biochemical functions in similarly-sized assemblies made from inorganic nanoparticles.
- Si Li
- , Juan Liu
- & Nicholas A. Kotov
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Article
| Open AccessVastly extended drug release from poly(pro-17β-estradiol) materials facilitates in vitro neurotrophism and neuroprotection
Currently there are no therapeutics for long lasting central nervous system injuries, that can address the complex injury cascade that develops over years. Here the authors report biomaterial scaffolds that release 17β-estradiol (E2) at nanomolar concentrations over the course of 1–10 years via slow hydrolysis in vitro.
- Anthony R. D’Amato
- , Devan L. Puhl
- & Edmund F. Palermo
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Article
| Open AccessMechanical adaptability of artificial muscles from nanoscale molecular action
The cooperative motion of artificial molecular machines has led to materials that respond to light with changing shape but also with softening. Here the authors describe a phase-heterogeneous liquid crystal material in which the action of molecular switches leads to morphing and stiffening, by enhancement of interfacial tension.
- Federico Lancia
- , Alexander Ryabchun
- & Nathalie Katsonis
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Article
| Open AccessDopant-tuned stabilization of intermediates promotes electrosynthesis of valuable C3 products
The electro-oxidative synthesis of valued chemicals offers to enhance the overall efficiency and economic viability of renewable electrosynthesis systems. Here, the authors use dopant-tuned catalysts to promote the electrosynthesis of dimethyl carbonate from CO and methanol via oxidative carbonylation.
- Tao-Tao Zhuang
- , Dae-Hyun Nam
- & Edward H. Sargent
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Article
| Open AccessGiant anisotropic thermal expansion actuated by thermodynamically assisted reorientation of imidazoliums in a single crystal
Designing materials with large thermal expansion is highly desirable to fabricate microscale devices. The authors report unusually large anisotropic negative and positive thermal expansion in a simple crystalline material, through temperature-driven orientation of imidazole cations acting as molecular wheels.
- Zi-Shuo Yao
- , Hanxi Guan
- & Jun Tao
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Article
| Open AccessNickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries
Room temperature rechargeable sodium sulfur batteries are promising for next-generation energy storage systems, but their development is limited by polysulfide dissolution and slow kinetics. Here the authors report a cathode that serves as a multifunctional sulfur host and imparts enhanced performance.
- Zichao Yan
- , Jin Xiao
- & Shi-Xue Dou
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Article
| Open AccessStiffness-switchable DNA-based constitutional dynamic network hydrogels for self-healing and matrix-guided controlled chemical processes
Dynamic hydrogels with controllable properties are of interest for a range of applications. Here, the authors report on a DNA hydrogel system which can be tailored to have reversible mechanical changes, reversible shape changes, is self-healing and can be used for controlled release applications.
- Liang Yue
- , Shan Wang
- & Itamar Willner
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Article
| Open AccessEnantiomeric glycosylated cationic block co-beta-peptides eradicate Staphylococcus aureus biofilms and antibiotic-tolerant persisters
The authors report the synthesis of an enantiomeric block co-beta-peptide that kills methicillin-resistant Staphylococcus aureus, including biofilm and persister bacterial cells, and disperses biofilms. The copolymer displays antibacterial activity in human ex vivo and mouse in vivo infection models without toxicity.
- Kaixi Zhang
- , Yu Du
- & Mary B. Chan-Park
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Article
| Open AccessSite-selective remote C(sp3)–H heteroarylation of amides via organic photoredox catalysis
Nitrogen-centered radicals are valuable intermediates for the controllable and selective functionalization of remote inert C(sp3)–H bonds. Here, the authors report an amidyl radical-triggered, metal-free and site-selective C(sp3)–H heteroarylation of amides under photoredox conditions.
- Hui Chen
- , Wenjing Fan
- & Shouyun Yu
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Article
| Open AccessHydrogen bonding structure of confined water templated by a metal-organic framework with open metal sites
The properties of water under confinement are significantly altered with respect to the bulk phase. Here the authors use infrared spectroscopy and many-body molecular dynamics simulations to show the structure and dynamics of confined water as a function of relative humidity within a metal-organic framework.
- Adam J. Rieth
- , Kelly M. Hunter
- & Francesco Paesani
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Article
| Open AccessDynamic multiphase semi-crystalline polymers based on thermally reversible pyrazole-urea bonds
Dynamic polymer materials with reversible covalent bonds can reorganize their macromolecular architectures, and thus produce a macroscopic response to the environment. Here, the authors show dynamic covalent polyureas formed by a polyaddition reaction between pyrazoles and diisocyanates at ambient temperature in the absence of a catalyst.
- Wen-Xing Liu
- , Zhusheng Yang
- & Jian Xu
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Article
| Open AccessGreen oxidation of indoles using halide catalysis
Indole oxidation represents a fundamental organic transformation delivering valuable nitrogen compounds. Here, the authors report a general halide catalysis protocol applied to three classes of oxidation reactions of indoles with oxone as a sustainable terminal oxidant.
- Jun Xu
- , Lixin Liang
- & Rongbiao Tong
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Article
| Open AccessOptical mapping of biological water in single live cells by stimulated Raman excited fluorescence microscopy
Recent studies have proposed that intracellular water is different from bulk water at the molecular level. Here the authors introduce a Raman microscopy-based method to image the distribution of water states in living cells, and report intracellular water heterogeneity between nucleus and cytoplasm.
- Lixue Shi
- , Fanghao Hu
- & Wei Min
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Article
| Open AccessTowards symmetry driven and nature inspired UV filter design
Sinapate esters are promising nature-inspired sunscreen and antioxidant agents but their photoisomerization may lead to ineffective or harmful species. Here the authors propose a symmetric ester with indistinguishable trans and cis isomers and prove its effectiveness by optical spectroscopies on a skin mimic.
- Michael D. Horbury
- , Emily L. Holt
- & Vasilios G. Stavros
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Article
| Open AccessRapid multiple-quantum three-dimensional fluorescence spectroscopy disentangles quantum pathways
Multidimensional spectroscopic tools are important to explore the details of molecular dynamics. Here the authors use shaped pulses to demonstrate a 3D fluorescence spectroscopy method to extract the fourth and higher-order nonlinear responses in light-molecule interaction.
- Stefan Mueller
- , Julian Lüttig
- & Tobias Brixner
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Article
| Open AccessQuadruple bonding between iron and boron in the BFe(CO)3− complex
While main group elements possess four valence orbitals that are accessible for bonding, quadruple bonding to main group elements is very rarely observed. Here the authors report that boron is able to form four bonding interactions with iron in the BFe(CO)3- anion complex.
- Chaoxian Chi
- , Jia-Qi Wang
- & Jun Li
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Article
| Open AccessMetallic porous nitride single crystals at two-centimeter scale delivering enhanced pseudocapacitance
Metallic porous nitride single crystals combine the advantages of large surface area, high conductivity and active sites at twisted surfaces. Here the authors grow metallic porous nitride single crystals at 2-cm scale, and demonstrate enhanced pseudocapacitance and cycling stability.
- Shaobo Xi
- , Guoming Lin
- & Kui Xie
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Article
| Open AccessDual self-assembly of supramolecular peptide nanotubes to provide stabilisation in water
Reversibility of peptide hydrogen bonded supramolecular assemblies makes them tunable but highly dynamic and prone to disassembly at the low concentration. Here the authors show a secondary hydrophobic interaction, near the peptide core that stabilises the peptide bonds, without losing the solubility of the systems in aqueous conditions.
- Julia Y. Rho
- , Henry Cox
- & Sébastien Perrier
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Article
| Open AccessFast room temperature lability of aluminosilicate zeolites
While aluminosilicate zeolites are of interest for many applications, the affect of water on zeolite stability in mild aqueous conditions has yet to be established. Here, using ab initio calculations and NMR spectroscopy, the authors show that covalent bonds in the zeolite chabazite are labile when in contact with neutral liquid water.
- Christopher J. Heard
- , Lukas Grajciar
- & Russell E. Morris
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Article
| Open AccessNanosecond photochemically promoted click chemistry for enhanced neuropeptide visualization and rapid protein labeling
Mass spectrometry-based quantitative proteomics aim to identify and quantify proteins from complex biological samples. Here, the authors developed a method for simultaneous high-throughput protein labelling and on-demand matrix removal within nanoseconds.
- Gongyu Li
- , Fengfei Ma
- & Lingjun Li
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Article
| Open AccessResonant catalysis of thermally activated chemical reactions with vibrational polaritons
Strong coupling of molecular vibrations to an optical cavity may catalyze thermally activated reactions, showcasing the potential of polariton chemistry. Here, the authors provide a theoretical framework explaining the chemical kinetics deriving from transit through polaritonic and dark states.
- Jorge A. Campos-Gonzalez-Angulo
- , Raphael F. Ribeiro
- & Joel Yuen-Zhou
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Article
| Open AccessStatistical learning goes beyond the d-band model providing the thermochemistry of adsorbates on transition metals
Assessing catalytic mechanisms using DFT calculations greatly aids catalyst design, but is impractical for large molecules. Here the authors develop a statistical learning-based thermochemical model for estimating adsorption of organics onto metals, retaining DFT accuracy while reducing the number of calculations by a factor of 20.
- Rodrigo García-Muelas
- & Núria López
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Article
| Open AccessHow to control single-molecule rotation
The orientation of a molecule on a surface affects many processes, so the ability to control single-molecule rotation could be powerful. Here, the authors use the electric field from a scanning tunneling microscope tip to precisely induce unidirectional rotation of a polar molecule, allowing visualization of the molecule’s internal dipole moment.
- Grant J. Simpson
- , Víctor García-López
- & Leonhard Grill
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Article
| Open AccessBreakdown of energy transfer gap laws revealed by full-dimensional quantum scattering between HF molecules
Practical calculations of molecular inelastic collisions are computationally very demanding. Here the authors use full-dimensional quantum scattering to calculate energy transfer probabilities in inelastic collision between hydrogen fluoride molecules successfully checked by available experimental vibrational quenching rate.Practical calculations of molecular inelastic collisions are computationally very demanding. Here the authors use full-dimensional quantum scattering to calculate energy transfer probabilities in inelastic collision between hydrogen fluoride molecules successfully checked by available experimental vibrational quenching rate.
- Dongzheng Yang
- , Jing Huang
- & Daiqian Xie
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Article
| Open AccessTopology, landscapes, and biomolecular energy transport
Understanding vibrational energy transfer in macromolecules has been challenging to both theory and experiment. Here the authors use non-equilibrium molecular dynamics to reveal the relationship between heat transport in a model peptide, emergent nonlinearity, and the underlying free energy landscape.
- Justin E. Elenewski
- , Kirill A. Velizhanin
- & Michael Zwolak
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Article
| Open AccessA chemically fueled non-enzymatic bistable network
Although bistability is common in biology, it is very difficult to design de novo into synthetic systems. Here, the authors present an experimental and theoretical analysis of a chemical network that displays bistable behavior under certain far-from-equilibrium conditions, and map the parameter space in which bistability operates.
- Indrajit Maity
- , Nathaniel Wagner
- & Gonen Ashkenasy
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Article
| Open AccessHigh-potency ligands for DREADD imaging and activation in rodents and monkeys
Designer Receptors Exclusively Activated by Designer Drugs (DREADDs) are a powerful tool for neuroscience, but the standard DREADD ligand, CNO, has significant drawbacks. Here the authors report two novel high-potency DREADD ligands and a novel DREADD radiotracer for imaging purposes.
- Jordi Bonaventura
- , Mark A. G. Eldridge
- & Michael Michaelides
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Article
| Open AccessUnderstanding resonant charge transport through weakly coupled single-molecule junctions
The mechanism of nonadiabatic electron transfer in molecular systems is an important research topic for understanding various chemical reactions. Thomas et al. quantify resonant charge transport through single-molecule junctions as a model system for examining quantum and Marcus theories.
- James O. Thomas
- , Bart Limburg
- & Jan A. Mol
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Article
| Open AccessReminiscent capillarity in subnanopores
Confined fluids in porous media exhibit different behaviors in large and small pores, the crossover between the two regimes being not well understood. Here the authors show, by experiments and simulations, that capillarity is reminiscent even for very small pore diameters, providing a unified picture.
- Irena Deroche
- , T. Jean Daou
- & Benoit Coasne
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