Abstract Cracks are formed along the photolithographically pre-determined lines with extremely high yield and repeatability, when Cu clusters introduced between planarized Au thin films sequentially deposited on a PET substrate. These act as nanometer-sized spacers preventing formation of contiguous metallic bond adjacent layers which will render prepatterned-cracking impossible. While effectiv...

The realization of flat surfaces on the angstrom scale is required in advanced devices to avoid loss due to carrier (electron and/or photon) scattering. In this work, we have developed a new surface flattening method that involves near-field etching, where optical near-fields (ONFs) act to dissociate the molecules. ONFs selectively generated at the apex of protrusions on the surface selectively...

Nucleic acids and analogues are suitable building blocks for reliable self-assembly of nanometer-sized two- or three-dimensional materials. In order to mimic or approach nature with respect to size and function, Angstrom-scale chemical engineering is emerging as pivotal for future developments. Efforts within nucleic acid nanotechnology will be focussed on generating rigid and stable low nanome...

Angstrom-scale fluidic channels are ubiquitous in nature and play an important role regulating cellular traffic, signaling, responding to stimuli. Synthetic angstrom now a reality with the emergence of several cutting-edge bottom-up top-down fabrication methods. In particular, use atomically thin 2D materials nanotubes as components build conduits has pushed limits scale. Here, we provide overv...

The optimum imaging of an object structure at the sub-angstrom length scale requires precise adjustment of the lens aberrations of a high-resolution instrument up to the fifth order. A least-squares optimization of defocus aberration C1, third-order spherical aberration C3, and fifth-order spherical aberration C5 yields two sets of aberration coefficients for strong phase contrast up to the inf...

First-principles calculations using density functional theory and two methods in comparison, Quantum ESPRESSO Siesta, are done on large supercells which describe different placements of identical adsorbed alkali metal atoms (of either Na, or K species) the monolayer boron carbide BC3. The energy single-atom adsorption over center C6 ring, C4B2 hexagon a atom have been preliminarily estimated, e...

A critical evaluation of the performance of X-ray refinement protocols using various energy functions is presented using the bovine pancreatic trypsin inhibitor (BPTI) protein. The four potential energy functions we explored include: (1) fully quantum mechanical calculations; (2) one based on an incomplete molecular mechanics (MM) energy function employed in the Crystallography and NMR System (...

Abstract We demonstrate the fabrication of surface nanoscale axial photonics bottle microresonators with angstrom precision using a flame. observe strongly unscalable behavior whispering gallery mode cutoff wavelengths different radial quantum numbers along fibre length.