Guest Editor: Activities and Responsibilities: 1) Made search for and inquire to over 100 potential authors to submit research/review articles in the area of separation technologies applied to clinical analysis, 25 authors accepted the invitation to submit. 2) answer inquiries from potential authors 3) Responsibility of 20 articles for each of two quest editors as given below: a) finding 2-3 reviewers for submitted articles, b) sending back reviewer comments to author to modify article if needed or reject article, c) reviewing modified article and send back to reviewers if needed and make decision to accept/reject Target date for publication of special edition issue is May 15, 2026