An experimental study about the mutual influence of gas-focusing and electric field on the characteristics of micro-jets was recently published in the Frontiers in Molecular Biosciences, IF=6.113. In the study, the assistance of an electric field was proposed to be used to deliver protein microcrystals into x-ray beams created by synchrotrons or free electron lasers. The paper is an outcome of a collaboration between Laboratory for Fluid Dynamics and Thermodynamics (LFDT), the Center for Free-Electron Laser Science (CFEL) at Deutsches Elektronen-Synchrotron (DESY), Hamburg and the University of Sevilla. During scientific visit at DESY first author on this paper, our Master student, performed the measurements and extensive analysis using instrumentation developed by Gisel Peña Murillo from CFEL. The paper describes new interesting jet shapes, which demand further experimental, theoretical and numerical studies. The contribution continues a series of successful results of the long-term scientific cooperation of our researchers with the group of Dr. Saša Bajt at CFEL, DESY.

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Figure 1: Observed forms of jets at different process parameters

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