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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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Analyses and Applications of Phenolic Compounds in Food—3rd Edition submission deadline 31 May 2026 | Viewed by 150 | Submission Open
Keywords: phenolics; extraction; identification; applications in food matrix
(This special issue belongs to the Section Food Chemistry)
Bioactive Compounds in Food: Extraction and Characterization submission deadline 31 May 2026 | Viewed by 148 | Submission Open
Keywords: bioactive compounds; food matrices; extraction techniques; green technologies; analytical characterization; structural elucidation; stability and bioavailability; functional food applications
(This special issue belongs to the Section Food Chemistry)
Electrochemical Catalytic Conversion of Small Molecules submission deadline 31 May 2026 | Viewed by 147 | Submission Open
Keywords: electrocatalysis; small molecule conversion; single-atom catalysis; mechanism study; sustainable energy
(This special issue belongs to the Section Electrochemistry)
Covalent Organic Frameworks for Energy Storage
edited by Madagonda M Vadiyar
submission deadline 31 May 2026 | Viewed by 140 | Submission Open
Keywords: covalent organic frameworks; synthesis and characterization; energy storage; supercapacitors; aqueous batteries; zinc-ion batteries; charge storage mechanisms; ex situ/in situ characterizations
(This special issue belongs to the Section Materials Chemistry)
Recent Advances in Structural Characterization by Raman Spectroscopy
edited by
submission deadline 31 May 2026 | Viewed by 133 | Submission Open
Keywords: Raman; pharmaceuticals; materials research; life sciences; molecular vibrations
(This special issue belongs to the Section Analytical Chemistry)
Review Papers in Physical Chemistry
edited by
submission deadline 31 May 2026 | Viewed by 130 | Submission Open
Keywords: physical chemistry; spectroscopy; quantum chemistry; surface chemistry; molecular dynamics simulations  
(This special issue belongs to the Section Physical Chemistry)
Current Research in Wine Chemistry and Analysis submission deadline 31 May 2026 | Viewed by 129 | Submission Open
Keywords: wine chemistry; analytical methods; sensory properties; phenolic compounds; fermentation chemistry
(This special issue belongs to the Section Food Chemistry)
Bioactive Food Compounds and Their Health Benefits submission deadline 31 May 2026 | Viewed by 129 | Submission Open
Keywords: polyphenolic compounds; bioactive compound; natural products; food safety; phytochemicals; carotenoids; LC-MS/MS techniques; HPLC-DAD-MS; fruits; vegetables; and mushrooms; antioxidant compounds; functional food; prebiotics; health benefits
(This special issue belongs to the Section Food Chemistry)
Advances in Efficient Conversion of Biomass Resources
edited by and
submission deadline 31 May 2026 | Viewed by 122 | Submission Open
Keywords: lignocellulose biomass; food waste; algal biomass; urban solid waste; platform compound; chemobiological valorization of biomass; biotransformation and biocatalysis; biomass pretreatment; biorefining; life cycles of biomass valorization
(This special issue belongs to the Section Green Chemistry)
Molecular Crystals: Exploring Structure, Properties, and Applications
edited by
submission deadline 31 May 2026 | Viewed by 119 | Submission Open
Keywords: molecular crystals; polymorphism; crystal growth; solid-state structure– property relationships; shape-memory and self-healing crystals; elastic– plastic crystals; materials for electronics and photonics; pharmaceutical crystalline materials
(This special issue belongs to the Section Materials Chemistry)
Advanced Materials for Gaseous Pollutant Removal
edited by , and Yueshuang Mao
submission deadline 31 May 2026 | Viewed by 111 | Submission Open
Keywords: gaseous pollutant removal; catalysis; adsorption; sustainable remediation; environmentally friendly materials
(This special issue belongs to the Section Materials Chemistry)
Zeolites and Related Nanoporous Materials: Green Supports for Molecules
edited by
submission deadline 31 May 2026 | Viewed by 102 | Submission Open
Keywords: porous materials; zeolites; selective catalysts; zeolite-like materials; molecule selectivity
(This special issue belongs to the Section Materials Chemistry)
Bioactive Compounds in Food: Advanced Extraction and Characterization Methods submission deadline 31 May 2026 | Viewed by 101 | Submission Open
Keywords: bioactive compounds; food matrices; extraction methods; process optimization; green and sustainable solvents; characterization techniques; stability assessment; bioavailability; delivery systems; functional foods; nutraceuticals; composition– functionality relationships
(This special issue belongs to the Section Food Chemistry)
Advances in Biomass Conversion, Biofuel Production and Biorefinery Processes submission deadline 31 May 2026 | Viewed by 100 | 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)
Innovative Catalysts and Multimodal Strategies for Water Remediation
edited by Lucyna Bilińska, and
submission deadline 31 May 2026 | Viewed by 97 | Submission Open
Keywords: nanostructured catalysts; thin-film catalysts; transition metal and carbon-based catalysts; advanced oxidation processes (AOPs); electrochemical advanced oxidation processes (EAOPs); photocatalysis; catalytic ozonation; novel catalysts for water remediation; wastewater treatment; functional material
(This special issue belongs to the Section Green Chemistry)
Carbon-Based Materials for Sustainable Chemistry: 3rd Edition
edited by
submission deadline 31 May 2026 | Viewed by 97 | Submission Open
Keywords: carbon-based materials; carbon nanostructures; adsorption; sustainability
(This special issue belongs to the Section Materials Chemistry)
Small Molecules in Molecular Imaging, Chemical Biology and Drug Discovery
edited by
submission deadline 31 May 2026 | Viewed by 92 | Submission Open
Keywords: small molecules; molecular design and synthesis; molecular imaging; chemical biology; drug discovery; biomarker visualization; therapeutic targeting; translational medicine; disease mechanisms; personalized diagnostics; biomedical innovation
(This special issue belongs to the Section Medicinal Chemistry)
Bioactive Peptides: Isolation, Identification and Application submission deadline 31 May 2026 | Viewed by 89 | Submission Open
Keywords: peptides; proteins; hydrolysis; bioavailability; application; biological activity; food technology
(This special issue belongs to the Section Food Chemistry)
Algal Biomolecules for Food and Pharmaceutical Innovations: Extraction, Characterization and Applications
edited by Renu Geetha Bai
submission deadline 31 May 2026 | Viewed by 88 | Submission Open
Keywords: algal biotechnology; biomass valorization; bioavailability evaluations; advanced extraction and purification techniques; functional and nutraceutical properties
(This special issue belongs to the Section Natural Products Chemistry)
Agricultural and Food Residues: Treatment and Valorization of By-Products and Wastes
edited by and Zacharias Ioannou
submission deadline 31 May 2026 | Viewed by 87 | Submission Open
Keywords: agri-food waste management; valorization processes; waste treatment technologies; bioconversion and fermentation; extraction and purification methods; bio-based materials and products; nutrient and resource recovery; process optimization; sustainable food systems
(This special issue belongs to the Section Green Chemistry)
Recent Advances in Circularly Polarized Luminescence Materials
edited by and Biao Zhao
submission deadline 31 May 2026 | Viewed by 86 | Submission Open
Keywords: circularly polarized luminescence; chirality; small molecules; polymers; chiral liquid crystals; self-assembled materials; optoelectronics; information security
(This special issue belongs to the Section Materials Chemistry)
Therapeutic Potential of Bioactive Dietary Small Molecules and Natural Products: From Discovery to Mechanistic Understanding submission deadline 31 May 2026 | Viewed by 86 | Submission Open
Keywords: bioactive compounds; natural products; dietary small molecules; therapeutic agents; mechanism of action; nutraceuticals; functional foods; molecular targets; pharmacological activity; chronic diseases; anti-inflammatory; antioxidant; metabolic disorders; hormone-related diseases
(This special issue belongs to the Section Food Chemistry)
Environmental Analysis of Organic Pollutants, 3rd Edition
edited by
submission deadline 31 May 2026 | Viewed by 83 | Submission Open
Keywords: organic pollutants; persistent organic pollutants; emerging contaminants; new pollutants; air; water; soil and sediment; emission; environmental fate; transformation; target analysis and non-target analysis
(This special issue belongs to the Section Green Chemistry)
Wide-Bandgap (WBG) Semiconductors: Advancements in Synthesis, Surface Engineering and Applications
edited by
submission deadline 31 May 2026 | Viewed by 83 | Submission Open
Keywords: wide-bandgap semiconductors; gallium oxide; Ga2O3; diamond; aluminum nitride; AlN; surface engineering; semiconductor devices
(This special issue belongs to the Section Applied Chemistry)
Analytical Methods for Food and Environmental Pollutants: Current and Future Perspectives, 2nd Edition submission deadline 31 May 2026 | Viewed by 80 | Submission Open
Keywords: emerging pollutants; food samples; environmental samples; sampling; sample preparation; analytical instrumentation; chemometric tools
(This special issue belongs to the Section Analytical Chemistry)
Porous and Nanoporous Materials in Heterogeneous Catalysis, 2nd Edition
edited by Angela Martins
submission deadline 31 May 2026 | Viewed by 78 | Submission Open
Keywords: porous and nanoporous materials; heterogeneous catalysts; hierarchical materials; bifunctional catalysts; catalyst supports; zeolites; zeotypes; carbon materials; MOFs; mesoporous silicas
(This special issue belongs to the Section Materials Chemistry)
Metal–Organic Cages: Synthesis and Applications
edited by Simona Nica
submission deadline 31 May 2026 | Viewed by 75 | Submission Open
Keywords: synthetic strategies; self-assembly processes; crystal engineering; computational studies; post-synthetic functionalization
(This special issue belongs to the Section Organic Chemistry)
Advanced Fluorescent Probes for Bioimaging and Environmental Sensing
edited by
submission deadline 31 May 2026 | Viewed by 69 | Submission Open
Keywords: metal ions; anions; phosphates; fluorescence; aldehydes; phosphorescence; sensitive detection; analytical methods
(This special issue belongs to the Section Analytical Chemistry)
Recent Advances in Supramolecular Chemistry, 2nd Edition
edited by Wen-Chao Geng and
submission deadline 31 May 2026 | Viewed by 67 | Submission Open
Keywords: supramolecular chemistry; molecular recognition; self-assembly; supramolecular materials; macrocycles
Advanced Membrane Materials for Water Treatment
edited by
submission deadline 31 May 2026 | Viewed by 67 | Submission Open
Keywords: advanced membranes; water treatment; membrane materials; nanocomposites; desalination; wastewater reuse; antifouling; mixed-matrix membranes (MMMs); emerging contaminants; membrane fabrication
(This special issue belongs to the Section Green Chemistry)
New Synthetic Drugs of Abuse submission deadline 31 May 2026 | Viewed by 66 | Submission Open
Keywords: new psychoactive substances (NPS); structure– activity relationships; pharmacokinetics and pharmacodynamics; toxicological mechanisms; advanced analytical methodologies; biomarkers of exposure
(This special issue belongs to the Section Medicinal Chemistry)
Acknowledged and Emerging Contaminants in Food and Natural Supplements submission deadline 31 May 2026 | Viewed by 66 | Submission Open
Keywords: food authentication; contaminants; toxicity; risk assessment; molecular fingerprint; metabolomics; AI-based omics; consumer safety
(This special issue belongs to the Section Analytical Chemistry)
Chitosan-Based Materials for Pharmaceutical and Medical Applications submission deadline 31 May 2026 | Viewed by 62 | Submission Open
Keywords: chitin; chitosan; chitosan modification; chitosan-based drug delivery systems; chitosan nanoparticles; chitosan for biomedical use; chitosan biomaterials  
(This special issue belongs to the Section Materials Chemistry)
Photoactive Compounds: From Dye Design to Advanced Probes and Photosensitizers
edited by Janina Kabatc-Borcz
submission deadline 31 May 2026 | Viewed by 59 | Submission Open
Keywords: photosensitizer; initiator; photosensitive materials; probes; dye
(This special issue belongs to the Section Photochemistry)
Electrochemical Reduction of CO2: From Fundamentals to Practical Catalysis
edited by Younes Abghoui
submission deadline 31 May 2026 | Viewed by 58 | Submission Open
Keywords: electrochemical CO2 reduction; eco-friendly energy resources; reaction mechanism; net-zero emissions; computational catalysis; experimental catalysis; decarbonization technology
(This special issue belongs to the Section Electrochemistry)
Application of Polyacrylonitrile in Catalytic Conversion and Environmental Remediation
edited by
submission deadline 31 May 2026 | Viewed by 57 | Submission Open
Keywords: polyacrylonitrile (PAN); environmental remediation; catalytic conversion; functionalized composites
(This special issue belongs to the Section Macromolecular Chemistry)
Functional Compounds and Advanced Delivery Systems in Cosmetic Science submission deadline 31 May 2026 | Viewed by 55 | Submission Open
Keywords: cosmetic chemistry; bioactive ingredients; natural extracts; anti-aging compounds; skin barrier function; antioxidants; peptides in cosmetics; nanotechnology in skincare; sustainable formulation; dermal delivery systems
(This special issue belongs to the Section Medicinal Chemistry)
Flexible Materials and Devices for Human Health
edited by Ding Zhang
submission deadline 31 May 2026 | Viewed by 55 | Submission Open
Keywords: flexible materials and devices; self-powered sensing; energy conversion; health monitoring; disease treatment
(This special issue belongs to the Section Applied Chemistry)
Bioactive and Nutritional Molecules: From Natural Sources to Therapeutic and Health Applications, 2nd Edition
edited by
submission deadline 31 May 2026 | Viewed by 53 | Submission Open
Keywords: bioactive and nutritional molecules; natural therapeutic agents; bioactive compounds
(This special issue belongs to the Section Cross-Field Chemistry)
Recent Progress in Quantum Dots: Synthesis and Emerging Applications
edited by
submission deadline 31 May 2026 | Viewed by 48 | Submission Open
Keywords: quantum dots; nanomaterials; colloidal synthesis; surface functionalization; optical properties; sensing; quantum dot applications
(This special issue belongs to the Section Nanochemistry)
Recent Advances in the Design of Electrochemical Sensors
edited by
submission deadline 31 May 2026 | Viewed by 39 | Submission Open
Keywords: electrochemical sensors; electoanalysis; electrocatalysis; electroactive materials; functional materials; nanomaterials; hybrid mateial; potentiometry; voltammetry; amperometry
(This special issue belongs to the Section Electrochemistry)
Novel Drugs for Anticancer Therapy
edited by
submission deadline 31 May 2026 | Viewed by 39 | Submission Open
Keywords: anticancer activity; natural small molecules; anticancer drugs; synthetic analogues
(This special issue belongs to the Section Medicinal Chemistry)
Advanced Functional Nanomaterials for High-Performance Supercapacitors, Electrochromic Systems, and Electrochemical Energy Storage
edited by Pritam J. Morankar
submission deadline 31 May 2026 | Viewed by 36 | Submission Open
Keywords: functional nanomaterials; electrochemistry; electrochemical energy storage
(This special issue belongs to the Section Electrochemistry)
Preparation, Performance and Application of Nano Functional Materials
edited by and
submission deadline 31 May 2026 | Viewed by 35 | Submission Open
Keywords: nano-functional materials; nanostructures; synthesis and fabrication; metal and metal oxide nanomaterials; composite nanomaterials; surface modification; catalysis and energy applications; sensing and bioengineering; sustainable nanomaterials
(This special issue belongs to the Section Materials Chemistry)
Carriers, Channels, Receptors, and Enzymes: Protein Targets of New Synthetic and Natural Compounds, 2nd Edition submission deadline 31 May 2026 | Viewed by 35 | Submission Open
Keywords: carrier; channel; receptor; enzyme; drug design; synthesis; biological evaluation; inhibitors; bioactive compounds; cell metabolism; mitochondria; human pathology
(This special issue belongs to the Section Chemical Biology)
Protein Kinase: Structure, Function and Inhibitors
edited by
submission deadline 31 May 2026 | Viewed by 23 | Submission Open
Keywords: protein kinase; protein phosphorylation; ATP-binding site; allosteric regulation; structure– function relationship; conformational change; cellular signaling pathways; drug discovery; ATP-competitive inhibitors; allosteric inhibitors
(This special issue belongs to the Section Chemical Biology)
Innovative Technologies for Food Processing and Preservation submission deadline 1 Jun 2026 | 1 articles | Viewed by 507 | Submission Open
Keywords: innovative food processing technologies; food preservation; food safety and quality; food sustainability; shelf-life extension; microbial inactivation; bioactive compounds
(This special issue belongs to the Section Food Chemistry)
Novel Functional Nanomaterials for Sensing and Biomedical Applications
edited by
submission deadline 1 Jun 2026 | Viewed by 102 | Submission Open
Keywords: functional nanomaterials; biosensing; chemical sensing; drug delivery; bioimaging; theranostics; nanobiotechnology; nanosensors; nanomedicine
Enantioselective Synthesis, Enantiomeric Separations and Chiral Recognition: 3rd Edition submission deadline 15 Jun 2026 | 3 articles | Viewed by 3975 | Submission Open
Keywords: enantioselective synthesis; enantioseparation; chiral analyses; chiral recognition; chiral sensors
NMR Spectroscopy in Medical Diagnosis and Precision Medicine: Current Trends and Future Directions submission deadline 15 Jun 2026 | Viewed by 328 | Submission Open
Keywords: NMR spectroscopy; metabolomics; lipidomics; biomarkers; medical diagnosis; precision medicine
(This special issue belongs to the Section Applied Chemistry)
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