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Critical assessment of the evidence for striped nanoparticles (2014)
Journal Article
Shankar, S. S., Stirling, J., Lekkas, I., Sweetman, A., Djuranovic, P., Guo, Q., …Moriarty, P. (2014). Critical assessment of the evidence for striped nanoparticles. PLoS ONE, 9(11), Article e108482. https://doi.org/10.1371/journal.pone.0108482

There is now a significant body of literature which reports that stripes form in the ligand shell of suitably functionalised Au nanoparticles. This stripe morphology has been proposed to strongly affect the physicochemical and biochemical properties... Read More about Critical assessment of the evidence for striped nanoparticles.

Intramolecular bonds resolved on a semiconductor surface (2014)
Journal Article
Sweetman, A., Jarvis, S. P., Rahe, P., Champness, N. R., Kantorovich, L., & Moriarty, P. (2014). Intramolecular bonds resolved on a semiconductor surface. Physical review B: Condensed matter and materials physics, 90(16), https://doi.org/10.1103/PhysRevB.90.165425

Noncontact atomic force microscopy (NC-AFM) is now routinely capable of obtaining submolecular resolution, readily resolving the carbon backbone structure of planar organic molecules adsorbed on metal substrates. Here we show that the same resolution... Read More about Intramolecular bonds resolved on a semiconductor surface.

Mapping the force field of a hydrogen-bonded assembly (2014)
Journal Article
Sweetman, A., Jarvis, S. P., Sang, H., Lekkas, I., Rahe, P., Wang, Y., …Moriarty, P. (2020). Mapping the force field of a hydrogen-bonded assembly. Nature Communications, 5, Article 3931. https://doi.org/10.1038/ncomms4931

Hydrogen bonding underpins the properties of a vast array of systems spanning a wide variety of scientific fields. From the elegance of base pair interactions in DNA to the symmetry of extended supramolecular assemblies, hydrogen bonds play an essent... Read More about Mapping the force field of a hydrogen-bonded assembly.

Unique determination of “subatomic” contrast by imaging covalent backbonding (2014)
Journal Article
Sweetman, A., Rahe, P., & Moriarty, P. (2014). Unique determination of “subatomic” contrast by imaging covalent backbonding. Nano Letters, 14(5), https://doi.org/10.1021/nl4041803

The origin of so-called “subatomic” resolution in dynamic force microscopy has remained controversial since its first observation in 2000. A number of detailed experimental and theoretical studies have identified different possible physicochemical me... Read More about Unique determination of “subatomic” contrast by imaging covalent backbonding.