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Due to the high oxidation potential of gold, the development of dual gold/photoredox-catalysed processes has been limited by the need for an easily reduced radical source. Now, discovery of an energy transfer photoexcitation process overcomes this limitation, enabling the oxidative addition of iodoalkynes onto organogold intermediates.
Precipitation processes enable the fast preparation of a variety of inorganic materials, although typically with little control over their morphology. Now, their one-, two- or three-dimensional growth has been promoted simply by tuning the electrolytic dissociation of the reactants and the supersaturation of the solution.
Aqueous batteries hold promise for large-scale energy storage, but are often maligned because of their low energy densities. Now, a demonstration of halogen conversion–intercalation chemistry inside graphite has blazed a trail for high-energy aqueous batteries.
The chemical functionality necessary for the origin of life may have emerged from simple reactions assembled into complex networks. Now, it has been shown that prebiotically relevant heterogeneous reaction networks can generate robust oscillations within complex mixtures comprised of precursors that do not oscillate on their own.
Scientific progress often relies on applying published methodological advances to different problems. With the aim of improving both the uptake and reproducibility of chemical transformations, a new assessment tool has now been developed that provides a clear and easy-to-interpret overview of common factors that affect a synthetic method.
The Women in Chemistry conference held on International Women’s Day was an opportunity to celebrate the varied careers of female chemists and showcase every step along the way. Suze Kundu emphasizes that successes, failures — and everything in between — are all intrinsically valuable.
Light is often used to trigger reactions, energetically exciting the reactant(s) to kick them over the intrinsic reaction barrier. Now, however, the reaction between an excited atom and a charged molecule at very low temperatures has been shown not to adhere to this paradigm, instead undergoing a reaction blockading effect.
Nature harnesses fractal geometry to create structures with unusual surface-to-volume ratios. Now, a new design approach enables the reversible assembly of functional enzymes into arboreal patterns with fractal geometry.
The contributions of women to the development of the periodic table have long been overlooked. Claire Murray relates how the recent ‘Setting their table’ conference set out to highlight their prominent role in element discovery and use.
The longstanding ‘polyelectrolyte theory of the gene’ proposes that a multiply charged backbone is the universal signature of all genetic polymer systems that support life. Now, the first tenable challenge to this theory has been mounted, through the successful engineering of enzymes which can synthesize and reverse-transcribe from an artificial, uncharged nucleic acid analogue.
In biological systems, order typically emerges from out-of-equilibrium molecular processes that control both static patterns and dynamic changes. Now, the self-regulating assembly and disassembly of a synthetic system has been achieved on the micrometre scale, by coupling the growth of a DNA nanotube to a biochemical oscillator.
Methods for generating molecular diversity provide a route to screen a wider section of chemical space, to discover compounds with useful biological properties. Now, a complexity-to-diversity strategy has enabled the discovery of a multi-cyclic structure from a complex natural product that induces ferroptotic cell death in cancer cells.
Two recent back-to-back meetings conveyed a common set of ongoing challenges for the fields of organocatalysis, photoredox catalysis and photochemistry.
Bacterial communication is a potential strategy to control bacterial behaviours and thus, attenuate pathogen infectivity; however, identifying the signalling molecules that regulate communication pathways is challenging. Now, a robust strategy to rapidly identify previously unknown signalling peptides has been developed. This approach provides a means to map out and decipher bacterial signalling mechanisms.
The direct formation of C–N bonds onto arenes provides a simple route to synthesize a variety of important products. Now, formation of a highly polarized, aminium radical cation enables direct C–H amination, allowing the coupling of an exceptionally broad range of alkyl amines and arenes.
Biochemical and cellular assays are often plagued by false positive readouts elicited by nuisance compounds. A significant proportion of those compounds are aggregators. This Review discusses the basis for colloidal aggregation, experimental methods for detecting aggregates and analyses recent progress in computer-based systems for detecting colloidal aggregation with particular emphasis on machine learning [In the online version of this Review originally published, the graphical abstract image was incorrectly credited to ‘Reven T.C. Wurman / Alamy Stock Photo’ this has now been corrected].
Natural products often provide lead scaffolds for the development of therapeutics, but complexity of their synthesis can limit the discovery of improved analogues. Pharmacophore-directed retrosynthesis aims to accelerate the building of a structure–activity relationship profile of a natural product, aiming to identifying a simplified lead.
The structure of self-assembled aggregates depends critically on the manner in which the building blocks organize themselves. Now, such a self-assembly process has been monitored in situ using liquid-phase transmission electron microscopy, unveiling a new pathway of vesicle formation.
Maleimide–thiol adducts are popular in both bioconjugation and materials chemistry, however, they are unstable under physiological conditions. Now, a mechanochemical approach uses pulling forces to stabilize maleimide–thiol adducts and improve the stability of polymer–protein conjugates.
Spins in molecules provide a simple platform with which to encode a quantum bit (qubit), the elementary unit of future quantum computers. This Perspective discusses how chemistry can contribute to designing robust spin systems based, in particular, on mononuclear lanthanoid complexes.