All Matter articles – Page 118
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OpinionWhat is a molecule?
Despite being a standard scientific concept, it’s virtually impossible to agree a satisfactory definition, says Philip Ball
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ResearchElectron work functions look tough
Surface property calculations provide a link between the electron work function and toughness of transition metals
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ResearchSteam powers artificial muscle
Carbon nanotube and silicone composite used to make clever actuator
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ResearchChemical reaction flipped back and forth under scanning probe microscope
Work demonstrated on Bergman cyclisation offers route to valuable new reactions
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ResearchGraphene oxide electronics are hot off the press
Printed electronic transfers created using water-based printing process
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OpinionWeighty decisions
Juris Meija explains why a small change to the atomic weight of an element can make a huge difference to science
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ResearchMicroscopic cannon battery to blast disease
Cannon-like tubes shoot tiny bullets when triggered by ultrasound and could deliver drugs
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ResearchMolecular threads woven into flexible fabric
New covalent organic framework contains interlacing polymer chains that can slide past one another
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ResearchDrug labelling problems ironed out by new catalyst
Cost-effective method to tritiate compounds offers way to track drug metabolism while minimising radioactive waste
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ResearchHow to tell your left from your right amino acids
Colorimetric method lends a hand to chiral amino acid recognition
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FeatureRaiders of the lost steel
The skills behind the legendary sharpness of wootz steel were once forgotten, but Andy Extance talks to the researchers unsheathing its secrets
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ResearchEasy addition of ‘unnatural’ strained rings boon for drug chemists
Technique can slow metabolism of medicines, giving them more time to work
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ResearchBoron nitride nanotube composites outperform their carbon cousins
Binding strengths of polymer–boron nitride nanotubes are higher than those reported for carbon nanotubes
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ResearchFirst nitrido–imido–amido complex made
Intriguing compound has single, double and triple Cr–N bonds from the same chromium atom
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ResearchEthanol to butanol conversion shows sustainable potential
Borrowed hydrogen chemistry drives reaction to obtain useful fuel from biomass
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ResearchExpanding polymer takes the heat out of lithium batteries
Polymer electrode coating may help prevent battery fires
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ResearchCeramics made stronger with 3D printing
New method uses 3D printed polymers to make flaw-free ceramic microlattices
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ResearchNew shape memory polymer with a permanent twist
Material can flip between shapes but its resting shape can be remodelled without wiping the memory of other shapes
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ResearchDisciplines unite to strengthen MOFs
Mechanical engineering sheds light on rigidity of porous frameworks