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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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Recent Developments in the Valorization of Agro-Food By-Products and Waste
edited by
submission deadline 31 Dec 2026 | 1 articles | Viewed by 531 | Submission Open
Keywords: agro-food waste; sustainable extraction; bioactive compound; circular economy; biotechnological conversion; sustainable food systems
(This special issue belongs to the Section Green Chemistry)
Chromatographic Methods for Monitoring Food Safety and Quality—Second Edition submission deadline 31 Dec 2026 | Viewed by 529 | Submission Open
Keywords: antibiotics; bioactive compounds; chromatography; contaminants; food chemistry; food authentication; food quality; food safety; method validation; microplastics; pesticides; veterinary drugs
(This special issue belongs to the Section Analytical Chemistry)
New Insights into Porous Carbon Materials for a Sustainable Future
edited by
submission deadline 31 Dec 2026 | Viewed by 522 | Submission Open
Keywords: porous carbon materials; biomass-derived carbon; waste-to-carbon; energy storage; carbon capture; supercapacitors; green synthesis; functionalized carbon; environmental applications
Featured Reviews in Nanochemistry 2026
edited by and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 509 | Submission Open
Keywords: review paper; nanomaterials; nanosynthesis; functional materials; characterization; applications; in situ techniques; operando characterization; modeling and simulation; artificial intelligence; optimization; chemistry
(This special issue belongs to the Section Nanochemistry)
Advanced Materials for Efficient Sulfur Removal in Industrial and Environmental Applications
edited by and Tendai O. Dembaremba
submission deadline 31 Dec 2026 | Viewed by 508 | Submission Open
Keywords: industrial desulfurization; catalytic sulfur removal; nanostructured catalysts; hydrodesulfurization (HDS); environmental catalysis; SOx emission control; clean fuel production; process scalability
Advances in Anticancer Activity of Natural Compounds: New Findings and Potential Applications
edited by , and Melissa García-Carrasco
submission deadline 31 Dec 2026 | Viewed by 502 | Submission Open
Keywords: cancer; natural compound; drug discovery; bioactive compounds; encapsulation technology; molecular mechanisms; translational oncology; therapeutic applications
(This special issue belongs to the Section Natural Products Chemistry)
Bioactive Compounds for the Prevention and Treatment of Diabetes and Metabolic Syndrome
edited by , and Kamila Kasprzak-Drozd
submission deadline 31 Dec 2026 | 1 articles | Viewed by 485 | Submission Open
Keywords: antioxidants; inflammation; polyphenols; CVD; insulin resistance; obesity; oxidative stress
(This special issue belongs to the Section Medicinal Chemistry)
Design, Surface Engineering, and Applications of Functional Monolayers and Coatings in Chemistry
edited by
submission deadline 31 Dec 2026 | 1 articles | Viewed by 485 | Submission Open
Keywords: nanomaterials; thin layers; self-assembled monolayers; surface modification of nanomaterials; characterization of thin layers; nanometrology; nanomechanics; antimicrobial activity and wetting of surfaces
(This special issue belongs to the Section Materials Chemistry)
Exploring Bioactive Polyphenolic Compounds in Food and Natural Real-World Samples, 3rd Edition
edited by and Katia Arena
submission deadline 31 Dec 2026 | Viewed by 484 | Submission Open
Keywords: polyphenols; foods; natural products; comprehensive two-dimensional liquid chromatography
(This special issue belongs to the Section Natural Products Chemistry)
Exploring the Modification of Nanocellulose: Strategies for Enhancing Properties and Expanding Applications submission deadline 31 Dec 2026 | Viewed by 473 | Submission Open
Keywords: nanocellulose; cellulose-polymer composites; cellulose nanofibers (CNFs); cellulose nanocrystals (CNCs); cellulose processing; nanocellulose functionalization; TEMPO cellulose; surface modification; grafting; nanocellulose biosensors
(This special issue belongs to the Section Macromolecular Chemistry)
Plant Natural Products: From Classical to (Bio)Technological and AI Research submission deadline 31 Dec 2026 | Viewed by 471 | Submission Open
Keywords: extraction and bioassay-guided isolation; bioactivities (communicable diseases like infections and non-communicable diseases like cancer, hyperglycemia, hypertension, diabetes, and hyperpigmentation); plant biosynthetic enzymes; green extraction technology; plant metabolomics and proteomics; molecular simulation (molecular docking and molecular dynamics); chemoinformatics (SAR and QSAR); AI (machine learning and deep learning)
(This special issue belongs to the Section Natural Products Chemistry)
Molecular Spectroscopy and Molecular Structure
edited by , and Yukihiro Ozaki
submission deadline 31 Dec 2026 | Viewed by 470 | Submission Open
Keywords: molecular spectroscopy; molecular structure; applications in biological sciences; applications in materials science; molecular interaction; hydrogen bonds; methodological development; quantum chemical calculation
(This special issue belongs to the Section Photochemistry)
Catalysis for Drug Discovery
edited by
submission deadline 31 Dec 2026 | Viewed by 470 | Submission Open
Keywords: organic synthesis; metal catalysis; organocatalysis; asymmetric catalysis; photocatalysis; electrocatalysis; drug discovery
(This special issue belongs to the Section Organic Chemistry)
New Dereplication Approaches for Targeting Bioactive Metabolites from Natural Products submission deadline 31 Dec 2026 | Viewed by 469 | Submission Open
Keywords: natural products; natural sources; bioactive metabolites; dereplication; LC‑MS/MS; chromatographic techniques; NMR spectroscopy; metabolomics; molecular networking; spectral libraries; in silico tools; bioactivity‑guided isolation; antioxidant activity; anti‑inflammatory activity; antimicrobial activity; anticancer activity
(This special issue belongs to the Section Natural Products Chemistry)
Computational Chemistry in Homogeneous and Heterogeneous Catalysis and Surface Chemistry
edited by Haya Kornweitz and
submission deadline 31 Dec 2026 | Viewed by 430 | Submission Open
Keywords: density functional theory (DFT); heterogeneous catalysis; homogeneous catalysis; surface reactions; reaction mechanism; metallic Surfaces; nanoparticles; adsorption; desorption; ab initio calculations; material science; surface modelling; reaction kinetics; thermochemistry and reactivity; transition State theory; potential energy surfaces (PES); hydrogenation; hydrogen evolution reaction (HER); oxygen evolution reaction (OER); CO2 reduction; electrocatalysis; machine learning
Bioactive and Nutritional Molecules: From Natural Sources to Therapeutic and Health Applications, 2nd Edition
edited by
submission deadline 31 Dec 2026 | Viewed by 426 | Submission Open
Keywords: bioactive and nutritional molecules; natural therapeutic agents; bioactive compounds
(This special issue belongs to the Section Cross-Field Chemistry)
Advanced Oxidation Processes for Organic Wastewater Treatment: Recent Advances and Future Prospects submission deadline 31 Dec 2026 | 1 articles | Viewed by 423 | Submission Open
Keywords: advanced oxidation processes; chemical oxidation; reactive oxygen species; organic pollutant degradation; oxidation mechanisms; water chemistry
(This special issue belongs to the Section Green Chemistry)
Benefits, Properties and Innovative Uses of Flavonoids submission deadline 31 Dec 2026 | Viewed by 416 | Submission Open
Keywords: flavonoids; polyphenols; cocrystals; bioactive compounds; antioxidant activity; health benefits; functional foods; nutraceuticals; solubility; bioavailability
(This special issue belongs to the Section Natural Products Chemistry)
Plant-Derived Natural Products: Isolation, Structural Characterization, and Bioactivities
edited by Felipe Moura Araújo da Silva, and
submission deadline 31 Dec 2026 | Viewed by 403 | Submission Open
Keywords: phytochemistry; medicinal plants; nuclear magnetic resonance (NMR); LC-MS; GC-MS; plant metabolomics; untargeted metabolomics; bioactivity-guided fractionation; pharmacological evaluation; pharmacognosy
(This special issue belongs to the Section Natural Products Chemistry)
Bioactive Compounds in Plant-Derived Extracellular Vesicles and Their Biomedical Applications
edited by
submission deadline 31 Dec 2026 | Viewed by 381 | Submission Open
Keywords: plant-derived extracellular vesicles; nanomedicine; nanomaterials; biological characteristics; bioactive compounds; biomedical applications; drug delivery
(This special issue belongs to the Section Natural Products Chemistry)
Chemical Characterization and Anti-Inflammatory/Antinociceptive Activities of Extracts from Medicinal Plants submission deadline 31 Dec 2026 | Viewed by 369 | Submission Open
Keywords: medicinal plants; phytochemistry; plant extracts; chemical characterization; bioactive compounds; anti-inflammatory activity; antinociceptive activity; natural products
(This special issue belongs to the Section Natural Products Chemistry)
Chemometrics and Machine Learning in Forensic Chemistry
edited by Eugenio Alladio
submission deadline 31 Dec 2026 | Viewed by 369 | Submission Open
Keywords: chemometrics; machine learning; forensic chemistry; forensic toxicology; multivariate analysis; spectroscopy; imaging; evidence evaluation; classification
(This special issue belongs to the Section Analytical Chemistry)
Bioactive Phytochemicals as Antioxidant Agents submission deadline 31 Dec 2026 | Viewed by 367 | Submission Open
Keywords: natural-based bioactive compounds; phytochemicals; antioxidants; biological activity; additives; adjuvants, nutraceuticals; food products; pharmaceutical products
(This special issue belongs to the Section Natural Products Chemistry)
From Discovery to Delivery: Novel Anticancer Molecules and Advanced Targeting Strategies
edited by
submission deadline 31 Dec 2026 | Viewed by 363 | Submission Open
Keywords: anticancer drug discovery; targeted drug delivery; nanocarriers; tumor-targeting ligands; controlled release
(This special issue belongs to the Section Medicinal Chemistry)
Advanced Analytical Strategies and Innovative Processing Technologies for Food Quality and Safety submission deadline 31 Dec 2026 | Viewed by 360 | Submission Open
Keywords: food quality and safety assurance; innovative food processing (HPP, PEF, Cold Plasma, etc.); pesticide residue analysis and mitigation; food contaminants; non-targeted analysis (NTA); food contact materials and NIAS analysis; food fingerprinting and authenticity; personalized nutrition and bioactive stability; AI and chemometric modeling in food science; advanced mass spectrometry (UPLC-MS/MS, GC-HRMS)
(This special issue belongs to the Section Food Chemistry)
Isolation and Functions of Bioactive Peptides in Food
edited by Noé Ontiveros and Oscar Gerardo Figueroa Salcido
submission deadline 31 Dec 2026 | Viewed by 354 | Submission Open
Keywords: bioactive peptides; protein hydrolysates; functional foods; nutraceuticals; disease prevention; therapy; delivery; in silico
(This special issue belongs to the Section Food Chemistry)
Advances in Functional Materials for Heterogeneous Electrocatalysis
edited by
submission deadline 31 Dec 2026 | Viewed by 349 | Submission Open
Keywords: interfacial interactions; environmental sustainability; energy conversion; water remediation; in situ characterization; first-principles calculations; machine learning
(This special issue belongs to the Section Electrochemistry)
Coordination Compounds: Synthesis, Structural Characterization and Versatile Biological Applications
edited by
submission deadline 31 Dec 2026 | Viewed by 347 | Submission Open
Keywords: coordination compounds; essential/non-essential metal ions; biological activity; antitumor; antimicrobial; in vitro assays; carrier; inorganic/organic matrix
(This special issue belongs to the Section Inorganic Chemistry)
Advances in Biomass Conversion, Biofuel Production and Biorefinery Processes submission deadline 31 Dec 2026 | Viewed by 346 | Submission Open
Keywords: biomass conversion; biofuels; catalysis; biorefinery integration; CO2 utilization; hydrogen production; energy storage; life-cycle and techno-economic analysis
(This special issue belongs to the Section Green Chemistry)
Essential Oils in Food Safety and Human Health: Bioactive Phytochemistry, Mechanisms of Action, and Applications submission deadline 31 Dec 2026 | Viewed by 343 | Submission Open
Keywords: essential oil bioactivity; structure–activity relationships; food safety and preservation; antimicrobial resistance; nanoemulsions; encapsulation; functional foods; nutraceuticals; mechanisms of action; bioavailability and bioaccessibility; active food packaging; in silico molecular docking
(This special issue belongs to the Section Natural Products Chemistry)
Current Advances in Biodegradable Polymers
edited by Aurelio Ramírez-Hernández and Alejandro Aparicio-Saguilán
submission deadline 31 Dec 2026 | Viewed by 337 | Submission Open
Keywords: natural and synthetic polymers; biodegradation; synthesis; characterization; composites; nanomaterials; processing; environmental impact; molecular modeling
(This special issue belongs to the Section Materials Chemistry)
Novel Micro- and Nanocomposites as Ionizing Radiation Shielding Materials: From the Concept to Real-Life Protection
edited by
submission deadline 31 Dec 2026 | Viewed by 332 | Submission Open
Keywords: nanocomposites; microcomposites; shielding; radiation; ionizing radiation
(This special issue belongs to the Section Materials Chemistry)
Fluorescent Organic Molecules: Design, Properties, and Applications
edited by Minghao Hu
submission deadline 31 Dec 2026 | Viewed by 324 | Submission Open
Keywords: fluorescent organic molecules; molecular design; photophysical properties; bioimaging; chemical sensing; biomedical applications
(This special issue belongs to the Section Photochemistry)
Structure and Bonding of Compounds: Experimental and Theoretical Studies submission deadline 31 Dec 2026 | Viewed by 322 | Submission Open
Keywords: chemical bonding; bonding analysis; molecular structure; calculations; interactions; MO analysis; VB analysis; quantum theory of atoms in molecules (QTAIM); machine learning; molecular dynamics
(This special issue belongs to the Section Computational and Theoretical Chemistry)
Stimuli-Responsive Molecular Crystals: From Structure to Function
edited by
submission deadline 31 Dec 2026 | Viewed by 318 | Submission Open
Keywords: stimuli-responsive molecular crystals; thermosalient and photosalient effects; supramolecular chemistry and crystal engineering; molecular design and polymorphism; anisotropic thermal expansion and molecular packing effects; solid-state phase transitions; crystallography under external stimuli; structure–property relationships in molecular solids; computational chemistry of molecular crystals
(This special issue belongs to the Section Materials Chemistry)
Synthesis of Innovative and Smart Materials for Batteries
edited by and Kangyu Zou
submission deadline 31 Dec 2026 | Viewed by 314 | Submission Open
Keywords: batteries; energy storage; electrodes; materials design; smart functional components
(This special issue belongs to the Section Materials Chemistry)
Electrochemical Approaches in Bioanalysis: Translational Applications in Medicine and Environmental Monitoring
edited by Mihaela Tertis
submission deadline 31 Dec 2026 | Viewed by 309 | Submission Open
Keywords: electrochemical bioanalysis; sensors and biosensors; nanomaterials and biomimetic-based platforms; point-of-care diagnostics; environmental monitoring
(This special issue belongs to the Section Electrochemistry)
Application of Polyacrylonitrile in Catalytic Conversion and Environmental Remediation
edited by
submission deadline 31 Dec 2026 | Viewed by 297 | Submission Open
Keywords: polyacrylonitrile (PAN); environmental remediation; catalytic conversion; functionalized composites
(This special issue belongs to the Section Macromolecular Chemistry)
Chemistry of Environmentally Friendly Corrosion Inhibitors Using Emerging Technologies submission deadline 31 Dec 2026 | Viewed by 296 | Submission Open
Keywords: green corrosion inhibitors; computational chemistry; sustainable synthesis; machine learning; adsorption mechanism
Chiral Catalyst Design and Asymmetric Synthesis
edited by Stefano Dughera
submission deadline 31 Dec 2026 | Viewed by 289 | Submission Open
Keywords: chiral catalyst design; asymmetric catalysis; enantioselective synthesis; organocatalysis; green chemistry
(This special issue belongs to the Section Organic Chemistry)
Fluorescent and Colorimetric Chemosensors: Design and Practical Applications
edited by
submission deadline 31 Dec 2026 | Viewed by 288 | Submission Open
Keywords: fluorescent probes; colorimetric sensors; chemosensors; molecular recognition; bioimaging; environmental monitoring; supramolecular chemistry; trace analysis
(This special issue belongs to the Section Photochemistry)
Removal of Micro- and Nanoplastics from Water
edited by
submission deadline 31 Dec 2026 | Viewed by 285 | Submission Open
Keywords: microplastics; nanoplastics; water purification; adsorption; photocatalysis; membrane filtration; biodegradation; electrochemical removal; environmental remediation; sustainable materials
(This special issue belongs to the Section Green Chemistry)
Bioactive Compounds in Traditional Herbal Medicines submission deadline 31 Dec 2026 | Viewed by 285 | Submission Open
Keywords: natural products; medicinal plants; traditional medicine; bioactive molecules; crude drugs; pharmacological activity; molecular mechanisms; phytochemistry; secondary metabolites; ethnopharmacology
(This special issue belongs to the Section Natural Products Chemistry)
Chemistry of Grapes and Wine: Analysis Methods, Applications and Challenges
edited by Ignacio Ontañón and Ignacio Arias-Pérez
submission deadline 31 Dec 2026 | Viewed by 282 | Submission Open
Keywords: wine chemistry; grape composition; wine aroma; gas chromatography–mass spectrometry (GC-MS); liquid chromatography–mass spectrometry (LC-MS); spectroscopic techniques; phenolic compounds; metabolomics; chemometrics
(This special issue belongs to the Section Food Chemistry)
Recent Advances in Clean and Efficient Coal Separation submission deadline 31 Dec 2026 | Viewed by 280 | Submission Open
Keywords: coal; intelligentization; flotation; gravity separation; dry separation; coal-based materials; coal-based solid waste; interfacial interaction
(This special issue belongs to the Section Green Chemistry)
Glycomics-Driven Molecular Discovery: Diagnostics, Therapeutics and Vaccines for Global Health
edited by , Arun Everest-Dass and
submission deadline 31 Dec 2026 | Viewed by 277 | Submission Open
Keywords: carbohydrate-based drug discovery; glycoscience; antiviral drugs; anti-infective therapeutics; influenza research; glycotherapeutics; drug-resistant bacteria; biomolecular drug design; cancer; cancer biomarker discovery; anti-cancer drug discovery
(This special issue belongs to the Section Bioorganic Chemistry)
Heterogeneous Catalysis and Functional Oxide Materials: A Theme Issue in Honor of Professor Steven L. Suib
edited by
submission deadline 31 Dec 2026 | Viewed by 276 | Submission Open
Keywords: advanced catalytic materials and mechanisms; porous and mesoporous materials synthesis and applications; functional oxide materials; environmental photochemistry and photocatalysis; heterogeneous catalysis; novel characterization techniques for catalysts
(This special issue belongs to the Section Inorganic Chemistry)
Therapeutic Potential of Bioactive Compounds Against Neurodegenerative Diseases submission deadline 31 Dec 2026 | Viewed by 276 | Submission Open
Keywords: neurodegenerative diseases; bioactive compounds; drug discovery; medicinal chemistry; structure-activity relationship; mechanisms of action
(This special issue belongs to the Section Medicinal Chemistry)
Naphthalene-Based Molecules: Design, Synthesis, and Functional Applications
edited by
submission deadline 31 Dec 2026 | Viewed by 275 | Submission Open
Keywords: naphthalene; design and synthesis; transformations; functional materials; drug discovery
(This special issue belongs to the Section Organic Chemistry)
Organic Chemistry in Europe submission deadline 31 Dec 2026 | Viewed by 272 | Submission Open
Keywords: organic synthesis; catalysis; asymmetric synthesis; organometallic chemistry; computational organic chemistry; heterocyclic chemistry; radical chemistry; cross-coupling reactions; C-H activation
(This special issue belongs to the Section Organic Chemistry)
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