Molecules

Molecules publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Secondary Metabolites from Natural Products: Extraction, Isolation and Biological Activities, 2nd Edition

edited by Radosław Kowalski and

Tomasz Baj

submission deadline 31 Dec 2026 | Viewed by 21 | Submission Open

Keywords: natural products; secondary metabolites; analytical techniques application; extraction and separation; chemical composition; phytochemistry; isolation and structure elucidation; secondary metabolites; antimicrobial activity; antioxidant activity; anticancer activity

(This special issue belongs to the Section Natural Products Chemistry)

Membrane Materials for Wastewater Treatment

edited by Chrysoula Athanasekou

submission deadline 31 Dec 2026 | Viewed by 19 | Submission Open

Keywords: membrane technologies; ultrafiltration; nanofiltration; reverse osmosis; membrane distillation; emerging contaminants; environmental remediation; wastewater treatment

(This special issue belongs to the Section Applied Chemistry)

Naphthalene-Based Molecules: Design, Synthesis, and Functional Applications

edited by

Yuan-Zheng Cheng

submission deadline 31 Dec 2026 | Viewed by 15 | Submission Open

Keywords: naphthalene; design and synthesis; transformations; functional materials; drug discovery

(This special issue belongs to the Section Organic Chemistry)

Synthesis, Doping, and Thermoelectric Properties of Chalcogenide Materials

edited by

Il-Ho Kim

submission deadline 31 Dec 2026 | Viewed by 15 | Submission Open

Keywords: chalcogenide thermoelectrics; chemical synthesis and modification; doping and defect chemistry; non-stoichiometry and vacancies; structure-property relationships; electron-phonon interactions; low lattice thermal conductivity

(This special issue belongs to the Section Materials Chemistry)

Recent Advances in Fermentation in Food Chemistry

edited by

Marek Zdaniewicz

submission deadline 31 Dec 2026 | Viewed by 15 | Submission Open

Keywords: fermentation; functional foods; fermented beverages; lactic acid fermentation; ethanol fermentation; bioactive compounds; food microbiology

(This special issue belongs to the Section Food Chemistry)

Featured Reviews in Chemical Biology 2026

edited by

Seung Bum Park

and

Haidong Li

submission deadline 31 Dec 2026 | Viewed by 10 | Submission Open

Keywords: chemical biology; chemical probes; phenotypic screening; target identification/validation; bioactive metabolites; signaling molecules; drug discovery; enzymology; synthetic biology

(This special issue belongs to the Section Chemical Biology)

Optimization of Process Methodology for Specialty and Fine Chemicals

edited by

Sebastian Balicki

and Łukasz Lamch

submission deadline 31 Dec 2026 | Submission Open

Keywords: process optimization; specialty and fine chemicals; process intensification; numerical and statistical optimization; design of experiments; green and sustainable chemistry; chemical engineering; data driven and model-based process design

(This special issue belongs to the Section Green Chemistry)

Recent Trends in Pharmaceutical Analysis for Drug Development, Therapeutic Monitoring and Biomarker Discovery

edited by