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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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Essential Oils in Human Health—2nd Edition submission deadline 31 Jul 2026 | Viewed by 133 | Submission Open
Keywords: essential oils; extraction; characterization; composition; biological properties
(This special issue belongs to the Section Natural Products Chemistry)
Recent Advances in Chemical Treatments of Wastewater
edited by and
submission deadline 31 Jul 2026 | Viewed by 130 | Submission Open
Keywords: wastewater treatment processes; purification mechanism; environmental remediation materials; water reuse
(This special issue belongs to the Section Green Chemistry)
Synthesis, Characterization and Applications of Vitrimers submission deadline 31 Jul 2026 | Viewed by 125 | Submission Open
Keywords: vitrimers; covalent adaptive networks; dynamic exchangeable linkages; recyclability; reshapeability; self-healing
(This special issue belongs to the Section Materials Chemistry)
Computational Approaches in Pharmaceutical Chemistry: Challenges and Opportunities
edited by
submission deadline 31 Jul 2026 | Viewed by 124 | Submission Open
Keywords: molecular docking; protein– ligand interactions; structure-based and ligand-based virtual screening; molecular dynamics; pharmacophore modeling; enhanced sampling methods; drug discovery; lead optimization
(This special issue belongs to the Section Medicinal Chemistry)
The Chemistry of Food Quality Changes During Processing and Storage
edited by
submission deadline 31 Jul 2026 | Viewed by 118 | Submission Open
Keywords: innovative processing; microbiological quality; mitigation strategies; processing optimization; shelf life extension; physicochemical changes; nutritional value; antioxidant capacity
(This special issue belongs to the Section Food Chemistry)
Photocatalytic Nanocomposites: Design, Mechanisms and Applications
edited by Ramona-Crina Suciu
submission deadline 31 Jul 2026 | Viewed by 110 | Submission Open
Keywords: photocatalytic; nanocomposites; matrix; reinforcement; nanomaterials
(This special issue belongs to the Section Nanochemistry)
Recent Advances in Amino Acid-Based Ionic Liquids
edited by
submission deadline 31 Jul 2026 | Viewed by 104 | Submission Open
Keywords: synthesis; physicochemical properties; theoretical studies; functional materials; drug formulation; (bio)separation; (bio)catalysis; toxicity
(This special issue belongs to the Section Molecular Liquids)
Food Sustainability: Promising By-Products for Valorization—3rd Edition
edited by , Mihai Babotă and
submission deadline 31 Jul 2026 | Viewed by 99 | Submission Open
Keywords: agri-food by-products; extraction and separation methods; functional bio-based ingredients; analytical chemistry; plant toxins; secondary metabolites; side-stream processing; biorefinery approaches
(This special issue belongs to the Section Food Chemistry)
Applications of Agro-Industrial By-Products in Health and Beauty: Innovative Strategies and Applications submission deadline 31 Jul 2026 | Viewed by 96 | Submission Open
Keywords: valorization of by-products; bioactive compounds; extraction technologies; delivery systems (micro/nano-carriers); health and skin applications
(This special issue belongs to the Section Food Chemistry)
Carotenoids and Their Derivatives: Extraction, Characterization, and Applications submission deadline 31 Jul 2026 | Viewed by 87 | Submission Open
Keywords: carotenoids; carotenoid derivatives; green extraction technologies; analytical characterization; bioaccessibility; bioavailability; encapsulation and delivery systems; functional foods
(This special issue belongs to the Section Natural Products Chemistry)
Biomass and Waste Conversion and Valorization to Chemicals, Energy and Fuels, 2nd Edition
edited by José A.P. Coelho and Roumiana P. Stateva
submission deadline 31 Jul 2026 | Viewed by 84 | Submission Open
Keywords: plants and microalgal biomass; sustainable waste valorization; biofuels; biorefinery; neoteric solvents
(This special issue belongs to the Section Green Chemistry)
Natural Ingredient-Based Cosmeceutical: Advances and Applications in Cosmetics Chemistry submission deadline 31 Jul 2026 | Viewed by 84 | Submission Open
Keywords: natural ingredients; cosmeceuticals; cosmetic chemistry; bioactive compounds; plant extracts; skin health; anti-aging; antioxidants; cosmetic formulation; innovative technologies in cosmetology; safety and toxicology; photoprotection; marine-derived actives; biopolymers; sustainable cosmetics; nano-delivery systems; dermal applications; functional skincare
(This special issue belongs to the Section Medicinal Chemistry)
Bioactive Compounds as Modulators of Antioxidant Activity and Inflammatory Processes in Related Diseases
edited by
submission deadline 31 Jul 2026 | Viewed by 82 | Submission Open
Keywords: natural bioactive compounds; antioxidant activities; anti-inflammatory activities; efficacy; safety; concentration-dependent effects; antioxidant/pro-oxidant balance
(This special issue belongs to the Section Natural Products Chemistry)
DNA Nanostructures and Biomedicine submission deadline 31 Jul 2026 | Viewed by 74 | Submission Open
Keywords: DNA nanostructures; biomedicine; drug delivery; biosensing; nucleic acid drugs
(This special issue belongs to the Section Medicinal Chemistry)
Integration of Chemical, Biotechnological, and Process Engineering Tools for Sustainable and Circular Food Manufacturing submission deadline 31 Jul 2026 | Viewed by 74 | Submission Open
Keywords: sustainability; circular economy; food manufacturing; green chemistry; bioprocess engineering; biotechnology; process intensification; waste valorization; enzyme technology
(This special issue belongs to the Section Food Chemistry)
New Horizons in Drug Repurposing submission deadline 31 Jul 2026 | Viewed by 70 | Submission Open
Keywords: drug discovery; drug repositioning; drug repurposing; genetic diseases; rare diseases; cancer; orphan drugs
(This special issue belongs to the Section Medicinal Chemistry)
Natural Pigments and Colorants in Food: Sources, Stability and Applications
edited by , Jarosław Wyrwisz, Małgorzata Moczkowska-Wyrwisz and Sabina Karp-Paździerska
submission deadline 31 Jul 2026 | Viewed by 67 | Submission Open
Keywords: natural colorants; anthocyanins; carotenoids; betalains; chlorophylls; encapsulation; stability; food applications; biopolymer interactions
(This special issue belongs to the Section Food Chemistry)
Functional Nanomaterials and Composites: From Design Towards Energy & Environmental Applications submission deadline 31 Jul 2026 | Viewed by 66 | Submission Open
Keywords: nanomaterials; composites; energy applications; environmental remediation; sustainable technologies
(This special issue belongs to the Section Nanochemistry)
Chemical Research on Advanced Nanomaterials for Promoting Sustainability
edited by
submission deadline 31 Jul 2026 | Viewed by 66 | Submission Open
Keywords: nanomaterials; photocatalysis; adsorption; biodegradability; sustainability
(This special issue belongs to the Section Green Chemistry)
Chemical, Biological and Preclinical Aspects of Cannabis and Cannabinoids
edited by
submission deadline 31 Jul 2026 | Viewed by 65 | Submission Open
Keywords: cannabis; cannabinoids; endocannabinoids; cannabinoid receptors; endocannabinoid system; phytocannabinoids; cannabidiol; tetrahydrocannabinol; endocannabinoidome
(This special issue belongs to the Section Natural Products Chemistry)
Advances in Chemical Biology of Blood Vessels: From Molecular Interactions to Prospective Targets
edited by
submission deadline 31 Jul 2026 | Viewed by 61 | Submission Open
Keywords: chemoproteomics and activity-based profiling; endothelial signaling and heterogeneity; angiogenesis and vascular remodeling; chemical biology spatial proteomics; real-time chemical probes and dynamic signaling; precision targeting in cardiovascular disease and cancer
(This special issue belongs to the Section Chemical Biology)
Green and Sustainable Biomass Processing: Ionic Liquids or Solvent-Free Approaches for Advanced Materials
edited by
submission deadline 31 Jul 2026 | Viewed by 60 | Submission Open
Keywords: ionic liquids; solvent-free; biomass processing; green chemistry; cellulose processing; mechanochemistry; deep eutectic solvents; sustainable materials
(This special issue belongs to the Section Green Chemistry)
Removal of Micro- and Nanoplastics from Water
edited by
submission deadline 31 Jul 2026 | Viewed by 58 | 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)
Natural and Sustainable Emulsions: Design, Stabilization, and Functional Applications submission deadline 31 Jul 2026 | Viewed by 55 | Submission Open
Keywords: natural emulsifiers; pickering emulsions; biopolymer stabilization; microencapsulation; sustainable formulations; bio-based materials
(This special issue belongs to the Section Materials Chemistry)
Environmental Analysis and Removal of Emerging Pollutants
edited by , and
submission deadline 31 Jul 2026 | Viewed by 54 | Submission Open
Keywords: pharmaceutical pollutants; industrial additives pollutants; analytical approaches; adsorption and photocatalytic removal processes; redox-driven degradation; bioremediation mechanisms
(This special issue belongs to the Section Green Chemistry)
Electrochemical Reduction of CO2
edited by and Toshiaki Taniike
submission deadline 31 Jul 2026 | Viewed by 53 | Submission Open
Keywords: material science; electrocatalysis; catalyst design; CO2 reduction; C– C coupling; reaction mechanism; carbon recycling; value-added chemicals
(This special issue belongs to the Section Electrochemistry)
Computational Photochemistry: Challenges and Possibilities
edited by
submission deadline 31 Jul 2026 | Viewed by 53 | Submission Open
Keywords: computational photochemistry; quantum mechanical methods; excited state; environmental photocatalysis; photodynamic therapy; photocatalytic water splitting; CO2 photoreduction; photochemical transformation of small molecules; mechanisms of luminescent materials
(This special issue belongs to the Section Photochemistry)
Innovations in Mass Spectrometry for Analytical Chemistry
edited by Claudia S. Maier and Stanislau Stanisheuski
submission deadline 31 Jul 2026 | Viewed by 52 | Submission Open
Keywords: novel ionization techniques and ion sources; advances in mass analyzers and detectors; integration with chromatographic/electrophoretic separations; ion-mobility and other types of gas-phase separations; novel targeted and untargeted data acquisition strategies; single-cell and spatial MS; functional omics; innovations in data analysis; algorithm development; statistics; and bioinformatics
(This special issue belongs to the Section Analytical Chemistry)
Marine Plant Metabolites as a Source of Novel Bioactive Agents: Isolation and Applications submission deadline 31 Jul 2026 | Viewed by 52 | Submission Open
Keywords: marine algae; aquatic plants; bioactive metabolites; extraction and isolation techniques; natural product characterization; bioproducts and biofuels; cell metabolism; pharmacological targets
(This special issue belongs to the Section Natural Products Chemistry)
Designed Multiple Ligands in Drug Design and Development-Second Edition
edited by
submission deadline 31 Jul 2026 | Viewed by 51 | Submission Open
Keywords: multitarget ligands; drug design; lead generation; lead optimization; hybrid compounds; chemical synthesis; biological screenings; structure– activity relationships; drug discovery
(This special issue belongs to the Section Medicinal Chemistry)
Advances in Glycoconjugates: Chemistry and Chemical Biology—2nd Edition
edited by
submission deadline 31 Jul 2026 | Viewed by 49 | Submission Open
Keywords: extraction; characterization; analysis; glycolipids; glycopeptides; glycoproteins; oligosaccharides; chemo-enzymatic modification/synthesis/green synthesis; glycosylation; glycodendrimers; glycomimetics; glycosyltransferases; amphiphiles; bio-control; food applications; cosmetic applications; biological applications; biomedical applications; biomaterials; drug-targeting systems; remediation
(This special issue belongs to the Section Chemical Biology)
Advances in Intercalation Chemistry submission deadline 31 Jul 2026 | Viewed by 49 | Submission Open
Keywords: intercalation; layered compound application; synthesis; clay-based materials; layered phosphates; layered double hydroxides; graphite; ion exchange
(This special issue belongs to the Section Materials Chemistry)
Anticancer, Antioxidant, and Anti-Inflammatory Activities of Natural Products, Second Edition
edited by
submission deadline 31 Jul 2026 | Viewed by 47 | Submission Open
Keywords: natural products; anticancer; antioxidant; anti-inflammatory; plant extracts; derived compounds; oxidative stress
(This special issue belongs to the Section Natural Products Chemistry)
Applied Surface Chemistry and Functionality
edited by Chaolang Chen
submission deadline 31 Jul 2026 | Viewed by 42 | Submission Open
Keywords: applied surface chemistry and functionality; surface functionalization and treatment techniques; industrial and biomedical applications; hydrophobicity/hydrophilicity; heat transfer enhancement; and biocompatibility; medical devices; flexible sensing; and multifunctional surface engineering
(This special issue belongs to the Section Applied Chemistry)
Beauty Science for a Sustainable Future: Green Technologies in Cosmetics
edited by Claudinéia Aparecida Sales De Oliveira Pinto
submission deadline 31 Jul 2026 | Viewed by 38 | Submission Open
Keywords: green technologies; eco-friendly extraction; natural products; renewable raw materials; biodegradable formulations
(This special issue belongs to the Section Green Chemistry)
Nanoscale Modulation of Cellular Signaling for Diagnostics and Targeted Therapy
edited by Jung Hyun Lee
submission deadline 31 Jul 2026 | Viewed by 37 | Submission Open
Keywords: nanoscale signaling modulation; nano-induced mechanisms; nanostructure– cell interaction; protein nanostructures; mechanism-based diagnostics and therapy
(This special issue belongs to the Section Nanochemistry)
Low-Dimensional Materials: From Synthesis to Application
edited by Fatih Ersan
submission deadline 31 Jul 2026 | Viewed by 36 | Submission Open
Keywords: two-dimensional materials; nanoparticles; thin films; graphene; synthesis; characterization; optoelectronics; energy storage; catalysis
(This special issue belongs to the Section Materials Chemistry)
Metal–Organic Framework-Based Materials: Preparation and Application in Electrochemistry
edited by and
submission deadline 31 Jul 2026 | Viewed by 35 | Submission Open
Keywords: metal– organic frameworks; energy storage/conversion; electrocatalysis; electrochemical sensors; flexible devices
(This special issue belongs to the Section Materials Chemistry)
Sustainable Solvents and Green Extraction Techniques for Natural Products
edited by Elena Gómez and
submission deadline 31 Jul 2026 | Viewed by 32 | Submission Open
Keywords: sustainable solvents; bioactive compounds; green extraction; natural products; solvent innovation; microwave-assisted extraction; ultrasound-assisted extraction; natural deep eutectic solvents
(This special issue belongs to the Section Green Chemistry)
Circular Bioeconomy Approaches to Natural Products: From Green Extraction to Bioactivity and Biomass Valorization
edited by
submission deadline 31 Jul 2026 | Viewed by 30 | Submission Open
Keywords: natural products; green extraction; bioactivity; by-products; biomass; biomass valorization
(This special issue belongs to the Section Green Chemistry)
Advances in Chemical Metallurgy for Sustainable Metal Recovery
edited by Beata Pośpiech
submission deadline 31 Jul 2026 | Viewed by 29 | Submission Open
Keywords: metallurgy; hydrometallurgy; metal recovery; separation methods; leaching; solvent extraction; ion exchange; membrane separation
(This special issue belongs to the Section Green Chemistry)
Characterization of Olive Products from Greece—2nd Edition submission deadline 31 Jul 2026 | Viewed by 25 | Submission Open
Keywords: olive cultivars; climate change; authenticity and quality; bioactive compounds; Greek olive products and by-products; molecular and metabolomics techniques; olive oil; table olives; food contaminants
(This special issue belongs to the Section Food Chemistry)
The Future of Anti-Cancer Agents Driven by High-Throughput Technologies, Computational Chemistry and Artificial Intelligence submission deadline 31 Jul 2026 | Viewed by 25 | Submission Open
Keywords: anti-cancer agents; medicinal chemistry; synthesis and SAR optimization; mechanism of action; oncogenic signaling pathways; chemoresistance; in silico modeling; targeted drug delivery
(This special issue belongs to the Section Medicinal Chemistry)
Extraction and Analysis of Natural Products in Food—4th Edition submission deadline 31 Jul 2026 | Viewed by 24 | Submission Open
Keywords: natural products; extraction methodologies: green impacts and sustainability; separation and purification techniques; agri-food byproducts; natural bioactive compounds; food ingredients; industrial application
(This special issue belongs to the Section Natural Products Chemistry)
Emerging Organic Contaminants: Advances in Detection and Removal Strategies
edited by Guodong Cao and
submission deadline 31 Jul 2026 | Viewed by 24 | Submission Open
Keywords: emerging organic contaminants; instrumental analysis; occurrence and fate; removal technologies; remediation
(This special issue belongs to the Section Applied Chemistry)
Antioxidant and Anti-Inflammatory Activities of Plant Extracts
edited by
submission deadline 31 Jul 2026 | Viewed by 23 | Submission Open
Keywords: plant extracts; antioxidant activity; anti-inflammatory activity; secondary metabolites; metabolomics; Nrf2– Keap1 pathway; NF-κ B signaling; oxidative stress (ROS/RNS); structure– activity relationship (SAR); multi-omics profiling
(This special issue belongs to the Section Natural Products Chemistry)
Advances in Microplastics and Nanoplastics Analysis, 2nd Edition submission deadline 31 Jul 2026 | Viewed by 23 | Submission Open
Keywords: microplastics; nanoplastics; monitoring; analytical methods; ecotoxicological assays
(This special issue belongs to the Section Analytical Chemistry)
Advances in Natural Antimicrobial Compounds
edited by Xiaochen Chen
submission deadline 31 Jul 2026 | Viewed by 22 | Submission Open
Keywords: natural antimicrobials; foodborn pathogens; antibacterial mechanisms; food preservation; essential oils; extraction and characterization; synergistic effects; food safety; shelf-life extension
(This special issue belongs to the Section Natural Products Chemistry)
Photocatalysts for Hydrogen Production and CO2 Reduction
edited by and
submission deadline 31 Jul 2026 | Viewed by 22 | Submission Open
Keywords: photocatalysis; hydrogen production; CO2 reduction; advanced characterization; theoretical calculations; mechanism exploration
(This special issue belongs to the Section Green Chemistry)
Development of Functional Hydrogels in Biomedicine
edited by
submission deadline 31 Jul 2026 | Viewed by 21 | Submission Open
Keywords: hydrogels; wound healing; biomaterials; nanotechnology; regenerative medicine; tissue regeneration
(This special issue belongs to the Section Medicinal Chemistry)
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