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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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Multidisciplinary Approaches to Bioactive Natural Products: From Source to Application

edited by

Zhenxing Zou

and

Haibo Tan

submission deadline 30 Apr 2026 | Viewed by 91 | Submission Open

Keywords: natural products; secondary metabolites; isolation and identification of natural products; structure– activity relationship; biological

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

Synthesis, Characterization, and Catalytic Applications of Transition Metal Complexes

edited by Daniel Mendoza Espinosa

submission deadline 30 Apr 2026 | Viewed by 89 | Submission Open

Keywords: transition metal complexes; homogeneous catalysis; heterogeneous catalysis; catalytic cycles; organic synthesis; selectivity; efficiency; sustainability

(This special issue belongs to the Section Organometallic Chemistry)

Chemical Composition, Pharmacological and Therapeutic Activity of Plant Extracts

edited by

Jasmina Sretenovic

Jovana Bradic

and

Jovana Joksimovic Jovic

submission deadline 30 Apr 2026 | Viewed by 87 | Submission Open

Keywords: plant extracts; natural product chemistry; in silico; in vitro; and in vivo studies; acute and chronic inflammation; cardiometabolic disorders; endocrine disorders; neurodegenerative disorders

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

New Insights Into Porous Materials in Adsorption and Catalysis, 2nd Edition

edited by Marcia G. Ventura,

Ines Matos

and

Maria Bernardo

submission deadline 30 Apr 2026 | Viewed by 87 | Submission Open

Keywords: catalysis; adsorption; environmental remediation; water and air purification; soil remediation; gas storage/upgrade; carbon dioxide capture; biomass to biofuel conversion

(This special issue belongs to the Section Applied Chemistry)

Analytical Techniques for Environmental Contamination

edited by Shiming Song

submission deadline 30 Apr 2026 | Viewed by 87 | Submission Open

Keywords: environmental analytical chemistry; environmental monitoring; pollution control; pollution monitoring; green methodologies

(This special issue belongs to the Section Analytical Chemistry)

New Trends in Graphene Nanomaterials

edited by

Łukasz Kołodziejczyk

submission deadline 30 Apr 2026 | Viewed by 86 | Submission Open

Keywords: graphene; graphene-based nanomaterials; 2D; functionalization; synthesis methods; hybrid nanostructures; energy storage; catalysis

(This special issue belongs to the Section Materials Chemistry)

Functional Polysaccharide Systems: From Molecular Interactions to Innovative Applications

edited by Sławomir Pietrzyk and Karolina Królikowska

submission deadline 30 Apr 2026 | Viewed by 84 | Submission Open

Keywords: functional polysaccharide systems; molecular interactions; structure– function relationships; interactions with other components; polymer modification; innovative applications in food and biotechnology

(This special issue belongs to the Section Food Chemistry)

Sustainable Recycling of Industrial By-Products and Spent Batteries

edited by Jingxiu Wang and

Herman Potgieter

submission deadline 30 Apr 2026 | Viewed by 83 | Submission Open

Keywords: sustainable recycling; industrial by-products; spent batteries; critical metal recovery; hydrometallurgical processes; deep eutectic solvents (DESs); green extraction technologies; circular chemistry

(This special issue belongs to the Section Green Chemistry)

Preparation and Catalytic Properties of Transition Metal Complexes

edited by

Jana Pisk

submission deadline 30 Apr 2026 | Viewed by 79 | Submission Open

Keywords: transition metal complexes; ligand design; coordination compounds; ligand design; catalysis; synthesis

(This special issue belongs to the Section Organometallic Chemistry)

Adventures in Bioinorganic Chemistry

edited by

Gianantonio Battistuzzi

Erika Ferrari

and

Alessandro Paradisi

submission deadline 30 Apr 2026 | Viewed by 79 | Submission Open

Keywords: metalloenzymes; enzymatic catalysis; metal-binding proteins; metal-based drugs; radiopharmaceuticals; bioavailability of metal ions; metal trafficking; metallomics; metal signalling

(This special issue belongs to the Section Inorganic Chemistry)

Emerging Strategies in Thermocatalysis and Electrocatalysis for Carbon Dioxide Valorization

edited by

Georgios Kyriakou

and

Alexandros Katsaounis

submission deadline 30 Apr 2026 | Viewed by 78 | Submission Open

Keywords: carbon dioxide valorization; CO₂ conversion; CO₂ activation; catalyst design; renewable energy integration; sustainable fuels and chemicals

(This special issue belongs to the Section Green Chemistry)

Green Valorization of Food By‑Products: Bioactive Molecules and Food‑Grade Delivery Systems

edited by

Hugo Miguel Lisboa Oliveira

submission deadline 30 Apr 2026 | Viewed by 76 | Submission Open

Keywords: valorization; food; agro‑industrial by‑product; fruit; vegetable; botanical; delivery; encapsulation; extraction; characterization; cold pressing; pressurized liquids; ultrasound; microwave; supercritical; subcritical; phenolic; terpene; lipid; peptide; polysaccharide; purification; structure– activity relationship; bioefficacy; antioxidant; antimicrobial; anti‑inflammatory; spray‑dried microcapsule; complex coacervate; nanoemulsion; cyclodextrin inclusion complex; ionotropic gelation system; controlled release; nutraceutical; active packaging; circular‑bioeconomy metrics; shelf‑life; in silico

(This special issue belongs to the Section Food Chemistry)

Photocatalysts: Design, Synthesis, and Applications

edited by

Jianhao Qiu

submission deadline 30 Apr 2026 | Viewed by 75 | Submission Open

Keywords: photocatalysis; photocatalytic degradation; H2 production; CO2 reduction; H2O2 production

(This special issue belongs to the Section Photochemistry)

Advanced Visual Sensing Strategies for Environmental Pollutant Detection

edited by

Minjia Meng

and

Bo Hu

submission deadline 30 Apr 2026 | Viewed by 66 | Submission Open

Keywords: visual sensing; colorimetric detection; ratiometric analysis; sensor arrays; environmental pollutants; portable and smart devices

(This special issue belongs to the Section Applied Chemistry)

Current Advances in the Discovery and Development of New Therapies against Cancer, 2nd Edition

edited by

Benjamin Pineda

submission deadline 30 Apr 2026 | Viewed by 65 | Submission Open

Keywords: cancer; solid tumor; leukemia; central nervous system; tumor; drug discovery; therapy; nanotherapy

(This special issue belongs to the Section Medicinal Chemistry)

Materials in the Application of Adsorption, Degradation, Catalysis and Water Treatment, 2nd Edition

edited by

Adina Negrea

and

Nicoleta Sorina Nemeş

submission deadline 30 Apr 2026 | Viewed by 65 | Submission Open

Keywords: biomaterial; antimicrobial; adsorbent; catalyst; natural polymers/biopolymers; food packaging; conventional technologies for water treatment; advanced technologies for water treatment

(This special issue belongs to the Section Materials Chemistry)

Advances in Organic Synthesis in Pharmaceuticals, Agrochemicals and Materials—2nd Edition

edited by Zhao-Yang Wang and Le Li

submission deadline 30 Apr 2026 | Viewed by 60 | Submission Open

Keywords: organic synthetic methods; synthesize pharmaceuticals; agrochemicals; and materials; organic photosynthesis; organic electrochemical synthesis; biocatalysis; AI-based organic synthesis

(This special issue belongs to the Section Organic Chemistry)

Energy Materials: Preparation and Application in Electrochemical Energy Storage

edited by Lina Chen

submission deadline 30 Apr 2026 | Viewed by 55 | Submission Open

Keywords: battery; energy materials; energy conversion; electrochemical energy storage; material preparation; renewable energy; novel electrode materials; sustainable materials

(This special issue belongs to the Section Applied Chemistry)

Inclusion Complex: Formation, Structure and Properties

edited by

Juliana Fedoce Lopes

, Wagner De Almeida and

Andreea Alexandra Olteanu

submission deadline 30 Apr 2026 | Viewed by 48 | Submission Open

Keywords: inclusion complex; host– guest interaction; computational chemistry; intermolecular interactions; structural characterization; supramolecular interactions

(This special issue belongs to the Section Molecular Structure)

Computational and Theoretical Insights on Molecular Structure, Solvation, Interactions and New Materials Design, 2nd Edition

edited by

Piotr Cysewski

submission deadline 30 Apr 2026 | Viewed by 47 | Submission Open

Keywords: solvation effects; solvation dynamics; designed solvents; intermolecular interactions; molecular modeling; machine learning; materials science; saturated solutions; chemical reactivity; computational techniques

(This special issue belongs to the Section Computational and Theoretical Chemistry)

Organic Fluorescent Dyes and Materials: From Synthesis to Applications in Detection and Bio-Imaging

edited by

Anna Barattucci

submission deadline 30 Apr 2026 | Viewed by 46 | Submission Open

Keywords: fluorescent organic materials; organic synthesis; sensors; bio-imaging; theranostics

(This special issue belongs to the Section Materials Chemistry)

Bioactive Molecules from Natural Sources and Their Functions

edited by Sonia Del Prete and

Mario Pagano

submission deadline 1 May 2026 | 3 articles | Viewed by 3553 | Submission Open

Keywords: secondary metabolites; primary metabolism; living organisms; function; structure; enzymes; biosynthetic pathways

(This special issue belongs to the Section Medicinal Chemistry)

Recent Developments in Chromatographic Applications in Medicine

edited by Anna Tsantili-Kakoulidou and Fotios Tsopelas

submission deadline 1 May 2026 | 1 articles | Viewed by 2256 | Submission Open

Keywords: chromatography; drug development; quality control; quantitative structure– retention relationships (QSRRs); quantitative retention– property relationships (QRPRs); chemometrics; adsorption– distribution– metabolism– excretion– toxicity (ADMET properties)

(This special issue belongs to the Section Analytical Chemistry)

QSAR and QSPR: Recent Developments and Applications, 5th Edition

edited by

Bono Lučić

submission deadline 1 May 2026 | Viewed by 97 | Submission Open

Keywords: QSAR/QSPR modelling; development of molecular descriptors; molecular structure representation; data mining; machine learning; regression QSAR/QSPR modelling; classification QSAR/QSPR modelling; model optimization protocols; model validation algorithms; model quality metrics; random accuracy; ensemble QSAR/QSPR modelling; applicability domain; QSAR/QSPR model interpretation; comparative modelling; drug design; drug discovery; environmentally-relevant activity; biological activity; physicochemical property

(This special issue belongs to the Section Computational and Theoretical Chemistry)

Natural Products as Antimicrobial and Anti-Infective Agents

edited by

Trinidad de Miguel

submission deadline 15 May 2026 | 1 articles | Viewed by 845 | Submission Open

Keywords: antimicrobial activity; natural extracts; natural products; polyphenols; resistant bacteria

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

Metal Recycling: From Waste to Valuable Resources

edited by María Isabel Martín Hernández

submission deadline 15 May 2026 | Viewed by 349 | Submission Open

Keywords: metal recycling; waste recycling; batteries; mining waste; minerals; post-consumer products; pyrometallurgical and hydrometallurgical techniques; recycling technologies; critical raw materials; li-ion batteries

(This special issue belongs to the Section Green Chemistry)

Natural Compounds: A Lead for Drug Discovery and Development, Second Edition

edited by

Agnieszka Kicel

and

Ewa Skała

submission deadline 15 May 2026 | Viewed by 85 | Submission Open

Keywords: natural compound; drug lead; drug discovery and development; medicinal chemistry; lead optimization; biological evaluation; natural product chemistry; pharmaceutical analysis

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

Novel Functional Crystalline Materials: Structure, Properties, and Application

edited by

Adam Szukalski

submission deadline 15 May 2026 | Viewed by 55 | Submission Open

Keywords: functional crystalline materials; structure-property relationships; metal– organic frameworks (MOFs); covalent organic frameworks (COFs); hybrid perovskites; photonics and optoelectronics; energy storage and conversion; biomaterials applications

(This special issue belongs to the Section Materials Chemistry)

Natural Bioactives and Functional Ingredients in Foods

edited by

Cristina Caleja

submission deadline 16 May 2026 | 1 articles | Viewed by 686 | Submission Open

Keywords: natural bioactive compounds; functional food ingredients; health-promoting foods; nutraceuticals; food innovation

(This special issue belongs to the Section Food Chemistry)

The State-of-the-Art in Improving the Antitumor Efficacy of Platinum Drugs

edited by

Mauro Ravera

and

Elisabetta Gabano

submission deadline 20 May 2026 | 1 articles | Viewed by 3655 | Submission Open

Keywords: bioinorganic chemistry; metal-based drugs; pt coordination compounds; pharmacodynamics; pharmacokinetics

(This special issue belongs to the Section Medicinal Chemistry)

Application of Organic Synthesis to Bioactive Compounds, 3rd Edition

edited by

Mª Ángeles Castro

and

David Díez

submission deadline 20 May 2026 | Viewed by 93 | Submission Open

Keywords: natural products; organic synthesis; bioactive compounds; chemotherapy; artificial intelligence; chemo-enzymatic

(This special issue belongs to the Section Organic Chemistry)

Design, Modifications, and Medical Application of Polymer-Based Materials

edited by

Fusun Ozer

submission deadline 30 May 2026 | 4 articles | Viewed by 11825 | Submission Open

Keywords: polymer-based materials; synthetic polymers; drug delivery systems; biocompatibility; biomaterials; tissue engineering; wound healing; medical devices

(This special issue belongs to the Section Materials Chemistry)

Biomass Materials in Materials Chemistry: Preparation and Characterization, 2nd Edition

edited by

Caiqin Qin

submission deadline 30 May 2026 | 3 articles | Viewed by 6089 | Submission Open

Keywords: biomass material (including chitosan; chitin; starch; and biomass waste); catalyst; food packing; coating and film; adsorption

(This special issue belongs to the Section Materials Chemistry)

Green Analytical Chemistry: From Sample Preparation to Detection

edited by

Victoria Samanidou

and

Irene Panderi

submission deadline 30 May 2026 | 1 articles | Viewed by 5786 | Submission Open

Keywords: green chemistry; green analytical chemistry; green sample preparation; microextraction techniques; pharmaceutical analysis; bioanalysis; metric tools; miniaturization; automated techniques; sustainable analytical workflows

(This special issue belongs to the Section Analytical Chemistry)

Determination, Adsorption and Degradation Mechanisms of Environmental Pollutants

edited by Alina Catrinel Ion

submission deadline 30 May 2026 | 5 articles | Viewed by 5483 | Submission Open

Keywords: environmental pollutants; adsorption mechanisms; degradation pathways; analytical techniques; nanomaterials; heavy metals; organic contaminants

(This special issue belongs to the Section Green Chemistry)

Isolation, Characterization, and Application of Anticancer Agents from Natural Products

edited by

Ewa Skała

and

Agnieszka Kicel

submission deadline 30 May 2026 | 2 articles | Viewed by 3186 | Submission Open

Keywords: medicinal plants; bioactive phytochemicals; cytotoxic activity; oxidative stress; anticancer potential; mechanism of action; cancer cells

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

Inorganic Photoelectric Functional Materials: Design, Synthesis and Applications

edited by Luyi Zou

submission deadline 30 May 2026 | 2 articles | Viewed by 2008 | Submission Open

Keywords: photoelectric material; molecular structure; molecular composition; structural performance

(This special issue belongs to the Section Inorganic Chemistry)

30th Anniversary of Molecules—Recent Advances in Ultrasound Chemistry

edited by

and

submission deadline 30 May 2026 | Viewed by 550 | Submission Open

Keywords: ultrasound; hydrodynamic cavitation; sonochemistry; sonocrystallisation; sono processing; sono extraction; applications in chemical engineering

(This special issue belongs to the Section Ultrasound Chemistry)

Computational Chemistry Approach for Materials Design

edited by

Tianwei He

and Lei Zhang

submission deadline 30 May 2026 | Viewed by 435 | Submission Open

Keywords: computational materials; catalysts; DFT calculation; machine learning; energy conversion and storage materials

(This special issue belongs to the Section Computational and Theoretical Chemistry)

Studies in Polymer Degradation

edited by

Anna Raffaela de Matos Costa

, Edcleide Maria Araujo and Bastos Y. M. De Almeida

submission deadline 30 May 2026 | Viewed by 247 | Submission Open

Keywords: degradation mechanisms; photooxidation; thermal degradation; upcycling technologies and additivities

(This special issue belongs to the Section Macromolecular Chemistry)

Innovative Materials for Wastewater Treatment Applications

edited by

Anastasia D. Pournara

Manolis Manos

and

Dimosthenis Giokas

submission deadline 30 May 2026 | Viewed by 211 | Submission Open

Keywords: wastewater treatment; heavy metal removal; adsorption and ion exchange; metal– organic frameworks (MOFs); metal sulfide sorbents; nanomaterials; functionalized composites; emerging pollutants

(This special issue belongs to the Section Materials Chemistry)

Emerging Contaminants and Their Transformation Products in the Environment: Advanced Analytical Methods for Assessing Ecological and Human Health Impacts

edited by

Maria Feo

submission deadline 30 May 2026 | Viewed by 130 | Submission Open

Keywords: emerging contaminants; transformation products; analytical methods; ecological impact; human health risk; contaminant fate; environmental monitoring

(This special issue belongs to the Section Analytical Chemistry)

Advancing Polyethylene Glycol as a Green Solvent in Chemical and Engineering Applications

edited by

Markus M. Hoffmann

submission deadline 30 May 2026 | Viewed by 95 | Submission Open

Keywords: polyethylene glycol; PEGylated chemicals; fundamental research on PEG; PEG as a chemical solvent; PEG in deep eutectic solvents; PEG in mixed solvents; PEG centered applications

(This special issue belongs to the Section Molecular Liquids)

Flavors and Fragrances in China

edited by

Shuang Chen

submission deadline 30 May 2026 | Viewed by 85 | Submission Open

Keywords: Chinese foods; flavor chemistry; flavor analysis; GC– MS/olfactometry; Chinese baijiu

(This special issue belongs to the Section Flavours and Fragrances)

Effect of Natural Products in the Cancer Therapy Mechanism—2nd Edition

edited by

Maciej Tarnowski

submission deadline 30 May 2026 | Viewed by 83 | Submission Open

Keywords: anticancer activities; therapeutic potential of plants; phytochemicals; natural products; apoptosis; metastasis; angiogenesis; molecular mechanisms; alkaloids; terpenoids; polyphenols

(This special issue belongs to the Section Chemical Biology)

Recent Advances in Protein Crystallography Methods and Instrumentation

edited by

Eugenia Pechkova

submission deadline 30 May 2026 | Viewed by 52 | Submission Open

Keywords: protein crystallography; advanced crystallization techniques; advanced X-ray sources; X-ray free-electron lasers (XFELs); fourth-generation high-brilliance synchrotrons; microcrystals and nanocrystals; radiation damage; time-resolved experiments; cryo-electron microscopy (cryo-EM); advanced crystallization techniques; lipid cubic phase (LCP); microseed matrix screening (MMS); langmuir– Blodgett nanotemplate (LBNT); ultrasound and microwave-assisted crystallization; electro-crystallization; controlled evaporative crystallization; nanocrystallization

(This special issue belongs to the Section Chemical Biology)

Computational Approaches in Antimicrobial and Antiviral Drug Discovery: Deciphering Drug Binding and Molecular Mechanisms

edited by

Mattia Falconi

Alice Romeo

and Simone La Frazia

submission deadline 31 May 2026 | 7 articles | Viewed by 14972 | Submission Open

Keywords: molecular docking; virtual screening; molecular dynamics simulations; artificial intelligence; antimicrobial or antiviral activity; computational drug discovery; molecular mechanisms; experimental assays

(This special issue belongs to the Section Computational and Theoretical Chemistry)

Current Research Status of Metal-Organic Frameworks and Covalent Organic Frameworks

edited by Teng Zhang and Wenju Wang

submission deadline 31 May 2026 | 6 articles | Viewed by 14747 | Submission Open

Keywords: gas separation; gas storage; catalyst; chemical sensing; biological application; energy storage

(This special issue belongs to the Section Materials Chemistry)

Biologically Active Molecules: Extraction Strategies, Therapeutic Potential and Biomedical Perspective

edited by

Grażyna Zgórka

submission deadline 31 May 2026 | 6 articles | Viewed by 9550 | Submission Open

Keywords: natural bioactive components; extraction techniques; therapeutic and biomedical profiling

(This special issue belongs to the Section Medicinal Chemistry)

Featured Review Papers in Food Chemistry—2nd Edition

edited by

Fei Tao

submission deadline 31 May 2026 | 4 articles | Viewed by 8596 | Submission Open

Keywords: food analysis; food additives; food supplements; functional foods; physicochemical properties; agro-food wastes recycling; bioaccessibility and bioavailability; food stability; food security

(This special issue belongs to the Section Food Chemistry)

Displaying special issue 601-650 on page 13 of 24.

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