23 Oct 2025

New Journal of Microscopy special issue: Ptychography

The Journal of Microscopy is pleased to announce the publication of a special issue featuring papers which focus on Ptychography.

The issue was guest edited by Andrew Maiden (University of Sheffield), Laura Clark (University of York), and Peter O'Toole (University of York).

In the introduction to the special issue, the guest editors said: “Ptychography is a tremendously versatile imaging technique, having been implemented at radiation wavelengths from the picometre to the micron, and the rest of this Special Issue highlights its versatility with articles from both extremes of the spectrum.

“The introductory article – by one of the forefathers of this diffractive imaging technique, Prof. John Rodenburg FRS – provides both an excellent historical context and a primer to the field.

“We hope the articles in this Special Issue provide a sense of the progress being made across the spectrum and of the still-to-explore potential of ptychography over all wavelengths.”

The issue features the following papers:

Introduction to the Special Issue on ptychography

Andrew Maiden, Laura Clark, Peter O'Toole

Ptychography: A brief introduction

John Rodenburg

Detecting charge transfer at defects in 2D materials with electron ptychography

Christoph Hofer, Jacob Madsen, Toma Susi, Timothy J. Pennycook

Defocus correction and noise reduction using a hybrid ptychography and Centre-of-Mass algorithm

Zhiyuan Ding, Chen Huang, Adrián Pedrazo-Tardajos, Angus I Kirkland, Peter D Nellist

Accelerating iterative ptychography with an integrated neural network

Arthur R. C. McCray, Stephanie M. Ribet, Georgios Varnavides, Colin Ophus

Depth of field of multi-slice electron ptychography: Investigating energy and convergence angle

Frederick Allars, Andrew Maiden, Darren J. Batey, Christopher S. Allen

Quantifying phase magnitudes of open-source focused-probe 4D-STEM ptychography reconstructions

Toma Susi

Stability of electron ptychography at low electron dose

M. Dearg, N. Michaelides, J. Gilbert, Z. Ding, Z. Aslam, D. G. Hopkinson, C. S. Allen, L. Clark

Ptychographic analysis of human bone marrow-derived mesenchymal stem cell morphology: The impact of cell senescence

Lorenzo Anconelli, Giovanna Farruggia, Isabella Zafferri, Francesca Borsetti, Stefano Iotti, Francesca Rossi, Jeanette A. Maier

Quantitative analysis of human umbilical vein endothelial cell morphology and tubulogenesis

Viviane Mignone, Maria Augusta Arruda, Laura Kilpatrick, Benjamin Moore, Jeanette Woolard, Stephen Hill, Joëlle Goulding

CellPhePy: A python implementation of the CellPhe toolkit for automated cell phenotyping from microscopy time-lapse videos

Laura Wiggins, Stuart Lacy, Graeme Park, Joanne Marrison, Ben Powell, Beth Cimini, Peter O'Toole, Julie Wilson, William J. Brackenbury

Fourier ptychography microscopy for digital pathology

Fraser Eadie, Laura Copeland, Giuseppe Di Caprio, Gail McConnell, Akhil Kallepalli