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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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Ionic Liquids and Deep Eutectic Solvents for Pharmaceutical Analysis

edited by

Snežana M. Papović

and Branislava Teofilović

submission deadline 31 Jan 2027 | Viewed by 196 | Submission Open

Keywords: ionic liquids; deep eutectic solvents; physicochemical analysis; green extraction and separation; phytochemicals; pharmaceutical analysis; chromatographic analysis; active pharmaceutical ingredients

(This special issue belongs to the Section Analytical Chemistry)

Biologically-Derived Nanomaterials: Synthesis, Functionalization and Applications in Environmental and Circular Technologies

edited by

Giorgio Lesci

Antonio Zuorro

and

Ioannis Katsoyiannis

submission deadline 31 Jan 2027 | Viewed by 184 | Submission Open

Keywords: green synthesis; nanomaterials; biomass-derived materials; water treatment; environmental remediation; circular economy; photocatalysis; waste valorisation

(This special issue belongs to the Section Nanochemistry)

Emerging Natural Antioxidants for Food Storage and Functional Food Innovation

edited by

Oana Mărgărita Ghimpețeanu

and

Andreea Iren Serban

submission deadline 31 Jan 2027 | Viewed by 182 | Submission Open

Keywords: natural antioxidants; food storage; functional food; food safety; shelf life

(This special issue belongs to the Section Food Chemistry)

Aromatic Heterocyclic Compounds: From Synthesis to Biological Activities Research

edited by

Camilla Djenne Buarque

and

Luana Da Silva Magalhães Forezi

submission deadline 31 Jan 2027 | Viewed by 179 | Submission Open

Keywords: aromatic heterocycles; organic synthesis; medicinal chemistry; bioactive scaffolds; SAR; synthetic methodologies

(This special issue belongs to the Section Organic Chemistry)

Advanced Metal-Based Drug Formulations in Cancer Treatment

edited by Sanja A. Mijatović and

Zoran Markovic

submission deadline 31 Jan 2027 | Viewed by 177 | Submission Open

Keywords: metal-based drugs; chemotherapy; cancer; tumor microenvironment; hybrid molecules; drug design; anticancer activity; drug delivery; tumor resistance

(This special issue belongs to the Section Medicinal Chemistry)

Biomaterials and Bioactive Systems: From Synthesis to Biomedical Applications

edited by Pedro M.G. Nicolau,

Ana Cristina Faria Ribeiro

and

Sónia I.G. Fangaia

submission deadline 31 Jan 2027 | Viewed by 166 | Submission Open

Keywords: biomaterials; bioactive systems; tissue engineering; drug delivery; biomedical applications

(This special issue belongs to the Section Cross-Field Chemistry)

New Insights into Maillard Reaction

edited by Junjian Miao and

Maomao Zeng

submission deadline 31 Jan 2027 | Viewed by 157 | Submission Open

Keywords: Maillard reaction; advanced glycation end-products (AGEs); food chemistry; flavor formation; non-enzymatic browning; acrylamide mitigation; reaction kinetics; nutritional impact; bioactive compounds; food processing

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

Advances in Terpenes and Terpene Derivatives

edited by Xin Hua,

Zheyong Xue

and

Zhiyong Yin

submission deadline 31 Jan 2027 | Viewed by 148 | Submission Open

Keywords: terpenes; terpenoids; natural products; biosynthesis; synthetic biology; enzyme characterization; metabolic engineering; structural elucidation; bioactivity; chemical synthesis

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

Research Advances in Rotational Spectroscopy: From Structures to Large Amplitude Motions of Molecules

edited by

Ha Vinh Lam Nguyen

submission deadline 31 Jan 2027 | Viewed by 147 | Submission Open

Keywords: rotational spectroscopy; microwave spectroscopy; large amplitude motion; structure determination; non-covalent interaction; nuclear quadrupole coupling

(This special issue belongs to the Section Molecular Structure)

Advances on Plant Extracts: Antioxidant and Anticancer Properties

edited by

Ewa Chodurek

submission deadline 31 Jan 2027 | Viewed by 146 | Submission Open

Keywords: plant extracts; antioxidants; free radicals; oxidative stress; melanin biopolymers; cancer; UV-Vis spectrophotometry; EPR spectroscopy

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

Advances in Conductive Composite Materials

edited by

Antonio Formisano

Gennaro Rollo

and Ilaria Improta

submission deadline 31 Jan 2027 | Viewed by 122 | Submission Open

Keywords: conductive composite materials; polymer nanocomposites; conductive fillers; carbon nanotubes (CNTs); graphene; MXenes; hybrid nanocomposites; smart textiles; interfacial engineering; structure–property relationships

(This special issue belongs to the Section Materials Chemistry)

Natural Products: Extraction, Analysis and Biological Activities: 2nd Edition

edited by

Dorota Wianowska

submission deadline 31 Jan 2027 | Viewed by 119 | Submission Open

Keywords: plant products; secondary metabolites; extraction; analysis; quality of natural products; biological activity; health-promoting properties; agricultural waste

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

Innovations in Catalysts for Hydrogen Evolution Reactions

edited by Socorro Oros-Ruiz

submission deadline 31 Jan 2027 | Viewed by 118 | Submission Open

Keywords: hydrogen evolution reaction; electrocatalysis; green hydrogen; metal nanoparticles; carbon-supported catalysis; metal organic frameworks (MOFs); nanomaterials; heterostructures; water splitting; photoreforming; artificial photosynthesis; catalysts design

(This special issue belongs to the Section Materials Chemistry)

Natural Products in Anticancer Activity: 3rd Edition

edited by Luciana Scotti

submission deadline 31 Jan 2027 | Viewed by 107 | Submission Open

Keywords: natural products; anticancer; drug; nature; molecule

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

Application of Advanced Materials in Green Catalysis

edited by Francesca Coccia

submission deadline 31 Jan 2027 | Viewed by 103 | Submission Open

Keywords: green catalysis; advanced materials; catalytic materials; environmental remediation; renewable resources; sustainable synthesis; biomass valorization

(This special issue belongs to the Section Materials Chemistry)

Molecular Structure and Dynamics: Spectroscopy, Calorimetry, and Applications

edited by

Aleksandra Owczarzy

Małgorzata Maciążek-Jurczyk

and

Wojciech Rogóż

submission deadline 31 Jan 2027 | Viewed by 87 | Submission Open

Keywords: molecular structure; molecular dynamics; spectroscopy; calorimetry; intermolecular interactions; ligand-protein interactions; antioxidant protein

(This special issue belongs to the Section Physical Chemistry)

Recent Advances in Mass Spectrometry-Based Analysis and Bioanalysis

edited by

C. Michael Greenlief

submission deadline 31 Jan 2027 | Viewed by 80 | Submission Open

Keywords: mass spectrometry; chromatography; bioanalysis; metabolomics; proteomics

(This special issue belongs to the Section Analytical Chemistry)

Functional Heterocycles: Sustainable Synthesis and Biological Applications

edited by

Magdalena Mizerska-Kowalska

and

Elżbieta Łastawiecka

submission deadline 31 Jan 2027 | Viewed by 80 | Submission Open

Keywords: heterocyclic compounds; sustainable synthesis; catalytic transformations; asymmetric synthesis; medicinal chemistry; biologically active compounds; functional organic materials; fluorescent probes; green chemistry

(This special issue belongs to the Section Organic Chemistry)

The Mpemba Effect: Experiment & Theory

edited by Alexei Finkelstein and Bogdan S. Melnik

submission deadline 31 Jan 2027 | Viewed by 60 | Submission Open

Keywords: Mpemba effect; first-order phase transitions; water freezing; ice nucleation; supercooling; colloids; quantum Mpemba effects

(This special issue belongs to the Section Physical Chemistry)

Photothermal Materials for Drug Delivery

edited by

Zhongming Huang

submission deadline 4 Feb 2027 | Viewed by 126 | Submission Open

Keywords: photothermal materials; drug delivery; disease therapy

(This special issue belongs to the Section Materials Chemistry)

Natural Antioxidants: Applications in Foods, Medicine and Cosmetics

edited by

Marta Klimek-Szczykutowicz

submission deadline 10 Feb 2027 | 2 articles | Viewed by 857 | Submission Open

Keywords: natural antioxidants; bioactive compounds; plant extracts; polyphenols; phytochemicals; antioxidant potential

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

Natural Compounds for Disease and Health, 4th Edition

edited by

George P.H. Leung

and

Jingjing Li

submission deadline 15 Feb 2027 | 3 articles | Viewed by 1887 | Submission Open

Keywords: natural products; phytochemistry; structure–activity relationship; mechanisms of action; anti-aging; cancer; cardiovascular diseases; digestive diseases; endocrine disorders; immune diseases; infections; inflammation; liver diseases; metabolic diseases; musculoskeletal diseases; neurodegenerative diseases; pain; psychiatric diseases; renal diseases; respiratory diseases

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

Valorization of Agri-Food By-Products for Disease Prevention: Extraction, Characterization and Translational Potential

edited by

Raluca Maria Pop

and

Veronica Sanda Chedea

submission deadline 15 Feb 2027 | 1 articles | Viewed by 1780 | Submission Open

Keywords: agri-food by-products; bioactive compounds; health promotion; green extraction; circular bioeconomy

(This special issue belongs to the Section Food Chemistry)

Bioactive Natural Product Compounds in Cancer Prevention and Therapy

edited by

Harinantenaina Liva Rakotondraibe

submission deadline 15 Feb 2027 | 1 articles | Viewed by 1193 | Submission Open

Keywords: natural product; cytotoxic; bioactivity mechanism; cancer; drug discovery; drug delivery; chemoprevention

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

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

edited by

Irene Panderi

and

Victoria Samanidou

submission deadline 15 Feb 2027 | Viewed by 552 | Submission Open

Keywords: pharmaceutical analysis; bioanalysis; drug development; therapeutic monitoring; biomarker discovery; omics; toxicological analysis

(This special issue belongs to the Section Medicinal Chemistry)

Enzyme Inhibitors: Structural Characterization and Applications

edited by

Nikitas Georgiou

and

Demeter Tzeli

submission deadline 15 Feb 2027 | Viewed by 175 | Submission Open

Keywords: enzyme inhibitors; DFT; molecular docking; molecular dynamics; structure–activity relationship

(This special issue belongs to the Section Medicinal Chemistry)

Natural Bioactives and Functional Ingredients in Foods

edited by

Cristina Caleja

submission deadline 16 Feb 2027 | 8 articles | Viewed by 7176 | Submission Open

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

(This special issue belongs to the Section Food Chemistry)

Photoelectrochemical Properties of Nanostructured Thin Films

edited by

Sadaf Bashir Khan

, Zheng Xie and Xiaofeng Zhao

submission deadline 27 Feb 2027 | 3 articles | Viewed by 4285 | Submission Open

Keywords: photoelectrochemical water splitting; CO2 reduction; photocatalysis; surface engineering; co-catalyst integration; sustainable energy conversion; thin-film heterojunctions; advanced functional nanomaterials

(This special issue belongs to the Section Photochemistry)

Advances in Natural Products and Their Biological Activities—2nd Edition

edited by

Irwin Rose Alencar Menezes

Henrique Douglas Melo Coutinho

, Roseli Barbosa and Francisco Assis Bezerra Da Cunha

submission deadline 28 Feb 2027 | 14 articles | Viewed by 19233 | Submission Open

Keywords: phytochemical; natural product; phytotherapy; medicinal plants; biological activity; pharmaceutical formulations; biological activity; pharmacological or toxicology effects

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

Antimicrobial Compounds and Biocontrol Strategies in Food Microbiology and Safety

edited by

María José Benito

and

Rocío Casquete Palencia

submission deadline 28 Feb 2027 | 5 articles | Viewed by 10736 | Submission Open

Keywords: antimicrobial compound; natural; synthetic; microbial; application; biocontrol; food; crop; agricultural; pathogenic; spoilage; bacteria; mold; in vitro; in vivo; mechanisms of action; membrane disruption; enzyme inhibition; interference with microbial communication; resistance management

(This special issue belongs to the Section Food Chemistry)

Recent Advances in Cannabis and Hemp Research—2nd Edition

edited by

Arjun H. Banskota

submission deadline 28 Feb 2027 | 11 articles | Viewed by 10280 | Submission Open

Keywords: Cannabis sativa; hemp; cannabinoids; terpenes; phenolics; secondary metabolites; by-products; biological activity; protein; polysaccharide

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

Advances in Heterocyclic Synthesis, 2nd Edition

edited by

Francesca Marini

submission deadline 28 Feb 2027 | 8 articles | Viewed by 9584 | Submission Open

Keywords: heterocycles; stereoselective synthesis; sustainable synthesis; one-pot reactions; multicomponent reactions; catalysis

(This special issue belongs to the Section Organic Chemistry)

Biotechnology and Biomass Valorization

edited by

Chia-Hung Kuo

Yung-Chuan Liu

and Parushi Nargotra

submission deadline 28 Feb 2027 | 7 articles | Viewed by 9454 | Submission Open

Keywords: biomass; conversion; utilization; enzyme; biological; microorganism; fermentation; high value-added product; biofuel; biogas; bioplastic; biochemical material; functional ingredient; bio-based material; metabolic engineering; synthetic biology; biorefining; bioresource; food waste; agricultural by-product; marine biological resource; extraction; purification; life cycle assessment (LCA)

(This special issue belongs to the Section Green Chemistry)

Molecular Insights into Functional Lipids in Food Chemistry

edited by

Jun Jin

and Siyu Zhang

submission deadline 28 Feb 2027 | 6 articles | Viewed by 8675 | Submission Open

Keywords: structured lipid; synthesis; crystallization; fatty acid; glyceride

(This special issue belongs to the Section Food Chemistry)

Bioactive Compounds as Modulators of Antioxidant Activity and Inflammatory Processes in Related Diseases

edited by

Raluca Maria Pop

submission deadline 28 Feb 2027 | 6 articles | Viewed by 6277 | 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)

Opportunities and Challenges in Organic Optoelectronic Materials

edited by

Chien-Jung Huang

and

Mu-Chun Wang

submission deadline 28 Feb 2027 | 3 articles | Viewed by 6178 | Submission Open

Keywords: organic semiconductors; organic photonics; inorganic/organic hybrid materials; excitons; electroluminescence; photovoltaics; vacuum/solution process; energy transfer

(This special issue belongs to the Section Materials Chemistry)

Bioactivity of Natural Compounds: From Plants to Humans, 2nd Edition

edited by

Guglielmina Froldi

submission deadline 28 Feb 2027 | 5 articles | Viewed by 5482 | Submission Open

Keywords: natural compounds; blood vessel; endothelium dysfunction; advanced glycation end products (AGEs); reactive oxygen species (ROS); cytokines; ADMET properties; pharmacokinetics; gender difference

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

Synthesis, Identification and Biological Evaluation of Novel Natural and Derivative Products

edited by

Elson S. Alvarenga

submission deadline 28 Feb 2027 | 2 articles | Viewed by 5395 | Submission Open

Keywords: organic synthesis; natural products; theoretical calculation; DFT; structure identification; biological evaluation

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

Heavy Metal Pollutants in Water, Wastewater and Sediments: From Occurrence and Determination to Removal and Recovery

edited by

Maciej Thomas

Krzysztof Barbusiński

and

Tomáš Bakalár

submission deadline 28 Feb 2027 | 5 articles | Viewed by 5173 | Submission Open

Keywords: heavy metals; analytical methods; wastewater; sludge; recycling; green chemistry; circular economy; sustainable development

(This special issue belongs to the Section Green Chemistry)

Advances in Dyes and Photochromics

edited by

Jose Antonio Gonzalez Delgado

Agostina-Lina Capodilupo

and

Jesús F. Arteaga

submission deadline 28 Feb 2027 | 4 articles | Viewed by 5052 | Submission Open

Keywords: photochromic compounds; green chemistry; molecular engineering; smart materials; environmental monitoring; electronic textiles; light-responsive materials; functional dyes; optical data storage; biomedical applications

(This special issue belongs to the Section Photochemistry)

Redox-Active Molecules as Key Players for Inflammatory Diseases

edited by Ange Mouithys-Mickalad

submission deadline 28 Feb 2027 | 3 articles | Viewed by 4854 | Submission Open

Keywords: redox-active Molecules; oxidative stress; inflammatory diseases; QSAR; computer-aided drug design; redox active natural compounds

(This special issue belongs to the Section Medicinal Chemistry)

Chitosan, Chitosan Derivatives, Polysaccharides and Their Applications—3rd Edition

edited by

Agnieszka Ewa Wiącek

submission deadline 28 Feb 2027 | 6 articles | Viewed by 4681 | Submission Open

Keywords: chitin; chitosan; polysaccharide; polysaccharide-based systems

(This special issue belongs to the Section Macromolecular Chemistry)

Antimicrobial Peptide Assemblies

edited by

Wen Li

submission deadline 28 Feb 2027 | 2 articles | Viewed by 4528 | Submission Open

Keywords: peptides; peptide hybrids; peptide conjugates; self-assembly; stimuli-responsiveness; antimicrobial activity

(This special issue belongs to the Section Chemical Biology)

Natural Products and Microbiology in Human Health, 2nd Edition

edited by

Ian Edwin Cock

submission deadline 28 Feb 2027 | 5 articles | Viewed by 4113 | Submission Open

Keywords: traditional medicine; antibiotics; antibiotic natural products; probiotics; novel antimicrobial therapies; microbial toxins; phytochemicals; antibiotic-resistant bacteria; drug potentiation

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

Metal and Metal Oxide Nanocomposites: From Synthesis to Applications in Biomedical & Environmental Technologies

edited by

Marija B. Radoičić

and Darka Markovic

submission deadline 28 Feb 2027 | 4 articles | Viewed by 4054 | Submission Open

Keywords: metal nanocomposites; metal oxide nanocomposites; nanomaterials synthesis; biomedical applications; environmental remediation; photocatalysis; antimicrobial activity; sustainable nanotechnology

(This special issue belongs to the Section Materials Chemistry)

Discovery, Isolation, and Mechanisms of Bioactive Natural Products (2nd Edition)

edited by

Qiang Zhang

submission deadline 28 Feb 2027 | 2 articles | Viewed by 3697 | Submission Open

Keywords: natural products; bioactivities; structural elucidation; mechanisms

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

Advances in Synthesis and Biological Activity of Novel Derivatives Based on Five-Membered Heterocyclic Scaffolds and Their Intermediates, 3rd Edition

edited by

Theodora Venera Apostol

George Mihai Nitulescu

and

Laura Ileana Socea

submission deadline 28 Feb 2027 | 3 articles | Viewed by 3501 | Submission Open

Keywords: bioactive heterocycles; heterocyclic scaffolds; bioisosteric heterocyclic skeletons; azoles; pyrazole; oxazole; triazole; oxadiazole; drug design; in silico studies

(This special issue belongs to the Section Organic Chemistry)

Boron-Containing Compounds: Chemistry, Biological Functions, and Emerging Biomedical Applications

edited by

Ion Romulus Scorei

submission deadline 28 Feb 2027 | 2 articles | Viewed by 3051 | Submission Open

Keywords: boron-containing compounds; organoboron chemistry; boron–carbohydrate complexes; boronated lipids; BNCT; boron essentiality; microbiota-accessible boron; boron-based therapeutics; boron prebiotic chemistry; molecular nutrition; membrane biology; carboranes

The Role of Cannabinoids in Human Health

edited by