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Skyrmions and antiskyrmions are nanometric spin whirls with opposite topological charges. In the Heusler magnet Mn1.4Pt0.9Pd0.1Sn, modulations of the orientation and strength of an in-plane magnetic field induces the transformation from antiskyrmions to non-topological bubbles and skyrmions.
Tip-enhanced Raman spectroscopy can provide chemical sensitivity at a single-molecule level. Measurements on individual molecules adsorbed on a thin salt layer unveil that components of the electric field perpendicular to the tip provide sensitivity to the symmetry of the vibrational modes of the molecule.
Tautomerization, the interconversion between two constitutional isomers of a molecule, plays a major role in chemistry. The combination of hyper-resolved fluorescence microscopy with time-correlated measurements and spectral selection enables the identification and in-depth characterization of a tautomerization reaction within a single molecular switch.
Non-intrusive integration of metasurfaces with vertical cavity surface-emitting lasers enables fully arbitrary wavefront control for directional laser emission.
Adoptive transfer of macrophages, transfected with vitamin C lipid nanoparticles that deliver an antimicrobial peptide and cathepsin B mRNA, can be applied for the treatment of multidrug-resistant bacteria-induced sepsis in mice.