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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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Advances in Antibacterial and Antifungal Peptide-Based Agents

edited by

Ewa Ciszkowicz

and

Aleksandra Bocian

submission deadline 15 Nov 2026 | Viewed by 401 | Submission Open

Keywords: antimicrobial compounds; antifungal compounds; natural products; synthetic compounds; novel antibiotics; antifungal and antimicrobial drugs; antimicrobial peptides (AMPs)

(This special issue belongs to the Section Medicinal Chemistry)

Multicomponent Reactions for the Synthesis of Bioactive Heterocyclic Hybrids

edited by

Carlos J. Cortes-García

and Luis Chacón

submission deadline 15 Nov 2026 | Viewed by 313 | Submission Open

Keywords: multicomponent reactions; one-pot reactions; molecular hybridization; bioactive heterocycles; drug discovery; medicinal chemistry

(This special issue belongs to the Section Organic Chemistry)

Active Food Packaging Materials: From Physical–Chemical Interactions to Preservation

edited by

Marcia Regina de Moura Aouada

and Ana María Chaux-Gutiérrez

submission deadline 15 Nov 2026 | Viewed by 235 | Submission Open

Keywords: bioactive compounds; shelf-life; essential oil; biopolymer; nanoemulsion; hydrogels; controlled release; antioxidant activity; antimicrobial activity; nanoparticles; nanocomposites

(This special issue belongs to the Section Materials Chemistry)

Advanced Chemical Strategies for Sustainable Environmental Remediation and Resource Recovery

edited by Martín Muñoz-Morales

submission deadline 16 Nov 2026 | 1 articles | Viewed by 834 | Submission Open

Keywords: environmental remediation; biowaste valorization; catalysts; thermal treatments; sustainability; biorefinery; heavy metals

(This special issue belongs to the Section Green Chemistry)

Synthesis, Structural Analysis and Applications of N,O-Donor Ligands and Their Coordination Compounds and Polymers, 2nd Edition

edited by

Barbara Morzyk-Ociepa

submission deadline 16 Nov 2026 | Viewed by 199 | Submission Open

Keywords: N,O-donor ligands; coordination chemistry; structural chemistry; coordination polymers; DFT calculations

(This special issue belongs to the Section Applied Chemistry)

Advances in Alkyne Chemistry

edited by Ruimao Hua

submission deadline 25 Nov 2026 | 9 articles | Viewed by 39008 | Submission Open

Keywords: alkyne annulation; carbocycle synthesis; heterocycle synthesis; atom-economic reaction; synthesis methodology

(This special issue belongs to the Section Organic Chemistry)

30th Anniversary of Molecules—Recent Advances in Materials Chemistry

edited by

Giuseppe Cirillo

Dimitrios Gournis

and Mu-Ping Nieh

submission deadline 30 Nov 2026 | 15 articles | Viewed by 30870 | Submission Open

Keywords: materials chemistry; synthetic procedures; characterization procedures; nanomaterials and nanocomposites; biologically oriented materials and biomaterials; materials of natural origin; hybrid composites; mechanical properties; long-term durability

(This special issue belongs to the Section Materials Chemistry)

30th Anniversary of Molecules—Recent Advances in Computational and Theoretical Chemistry

edited by

Maxim L. Kuznetsov

submission deadline 30 Nov 2026 | 15 articles | Viewed by 20725 | Submission Open

Keywords: computational chemistry; quantum chemistry; density functional theory; molecular design; reaction mechanism; chemical bonding; non-covalent interactions; molecular docking

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

Heterophase Polymerization and Functional Polymer Microspheres/Microcapsules

edited by Chengyou Kan and Wei Deng

submission deadline 30 Nov 2026 | 6 articles | Viewed by 19269 | Submission Open

Keywords: emulsion polymerization; mini emulsion polymerization; dispersion polymerization; suspension polymerization; encapsulation; functionalization; polymer microspheres; microcapsules; characterization; morphology control; structure–property relationship; polymer nanocomposite; application

(This special issue belongs to the Section Materials Chemistry)

Plant Volatile Organic Compounds: Extraction, Characterization and Biological Activities

edited by

Ana Lima

and

Elisabete Maria de Castro Lima

submission deadline 30 Nov 2026 | 7 articles | Viewed by 16212 | Submission Open

Keywords: plant volatile organic compounds; biosynthesis and emission; essential oils; biological activities; green extraction; omics technologies; circular bioeconomy

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

Bioactive Compounds for Brain Ischemia and Neurodegenerative Disease—3rd Edition

edited by

Ramunė Morkūnienė

and Dalia Marija Kopustinskiene

submission deadline 30 Nov 2026 | 8 articles | Viewed by 12122 | Submission Open

Keywords: brain; neuroprotection; neurodegenerative diseases; ischemia; mitochondria; oxidative stress; inflammation; bioactive compounds

(This special issue belongs to the Section Medicinal Chemistry)

Functional Heterocyclic Compounds with Outstanding Biological Activities

edited by

Oana Maria Dragostin

and

Maria Luisa Di Gioia

submission deadline 30 Nov 2026 | 5 articles | Viewed by 11593 | Submission Open

Keywords: pharmaceutical chemistry; bioactive heterocyclic compounds; antitumor extracts; plant extract–synthetic substances associations; biocompatibility; nontoxicity

(This special issue belongs to the Section Medicinal Chemistry)

Active Ingredients in Functional Foods and Their Impact on Health, 2nd Edition

edited by

Anna Puścion-Jakubik

submission deadline 30 Nov 2026 | 6 articles | Viewed by 11035 | Submission Open

Keywords: functional foods; active ingredients; bioactive compounds; health impact; nutraceuticals; dietary patterns; personalized nutrition

(This special issue belongs to the Section Food Chemistry)

Re-Valorization of Waste and Food Co-Products

edited by

Adriana Dabija

and

Ancuța Chetrariu

submission deadline 30 Nov 2026 | 9 articles | Viewed by 10358 | Submission Open

Keywords: by-products; valorization; reutilization; zero waste; application of functional ingredients; circular economy

(This special issue belongs to the Section Green Chemistry)

Phytochemistry, Antioxidants, and Anti-Diabetes

edited by

Valerija Vujčić Bok

, Gordana Rusak and

Ivana Sola

submission deadline 30 Nov 2026 | 3 articles | Viewed by 8923 | Submission Open

Keywords: bioactive compounds; natural antioxidants; plant extracts; functional foods; nutraceuticals; diabetes

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

Feature Papers in Applied Chemistry: 4th Edition

edited by

Shaojun Yuan

submission deadline 30 Nov 2026 | 4 articles | Viewed by 7427 | Submission Open

Keywords: applied chemistry; new molecules/materials; analytical methods and techniques; electrochemistry and catalysis; new materials and medicines

(This special issue belongs to the Section Applied Chemistry)

A Themed Issue in Honor of the 20th Anniversary of the Mexican Academy of Organic Chemistry (AMQO)

edited by Ivan Romero-Estudillo,

Mario Orodnez

, Alicia Boto and

David Chávez-Flores

submission deadline 30 Nov 2026 | 7 articles | Viewed by 7261 | Submission Open

Keywords: organic chemistry; chemistry process; chemistry; chemical science; science in Mexico

(This special issue belongs to the Section Organic Chemistry)

Exclusive Feature Papers on Molecular Structure, 2nd Edition

edited by

Chan Kyung Kim

submission deadline 30 Nov 2026 | 4 articles | Viewed by 7131 | Submission Open

Keywords: molecular structure; chemical bonding; molecular clusters; molecular similarity; protein structure prediction; quantum chemistry; spectroscopy; molecular dynamics simulations

(This special issue belongs to the Section Molecular Structure)

Applications of EPR Spectroscopy in Various Fields of Scientific Research

edited by

Yordanka Karakirova

submission deadline 30 Nov 2026 | 4 articles | Viewed by 6841 | Submission Open

Keywords: EPR spectroscopy; free radicals; paramagnetic species; dosimetry; food technology; archeology; environmental; catalysis

(This special issue belongs to the Section Analytical Chemistry)

Chemical Composition and Biological Evaluation of Essential Oils

edited by

Renata Nurzyńska-Wierdak

submission deadline 30 Nov 2026 | 5 articles | Viewed by 6707 | Submission Open

Keywords: essential oils; biological evaluation; chemical composition; therapies; natural products

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

Bioactive Food Compounds and Their Health Benefits

edited by

Sabina Lachowicz-Wiśniewska

submission deadline 30 Nov 2026 | 6 articles | Viewed by 6506 | 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)

Macromolecular Chemistry in Europe, 2nd Edition

edited by

Chris E. Finlayson

submission deadline 30 Nov 2026 | 2 articles | Viewed by 6023 | Submission Open

Keywords: macromolecules; synthesis and polymerization; polymer architectures; properties and structure; functional materials

(This special issue belongs to the Section Macromolecular Chemistry)

Treatment and Analysis of PFAS in Environmental Pollution

edited by

Shilai Hao

submission deadline 30 Nov 2026 | 2 articles | Viewed by 5663 | Submission Open

Keywords: PFAS; total fluorine; treatment; environmental samples

(This special issue belongs to the Section Green Chemistry)

Current Emerging Trends of Extraction and Encapsulation in Food, 2nd Edition

edited by

Seyed Mohammad Taghi Gharibzahedi

submission deadline 30 Nov 2026 | 5 articles | Viewed by 5489 | Submission Open

Keywords: extraction; encapsulation; drying; emulsion; targeted delivery; stability; bioactive compounds; nonthermal technologies; bioavailability; functional foods

(This special issue belongs to the Section Food 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 Nov 2026 | 4 articles | Viewed by 4931 | 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)

Review Papers in Physical Chemistry

edited by

Maofa Ge

submission deadline 30 Nov 2026 | 2 articles | Viewed by 4836 | Submission Open

Keywords: physical chemistry; spectroscopy; quantum chemistry; surface chemistry; molecular dynamics simulations

(This special issue belongs to the Section Physical Chemistry)

The 30th Anniversary of Molecules—Recent Advances in Nanochemistry

edited by

Ashok Kakkar

submission deadline 30 Nov 2026 | 5 articles | Viewed by 4820 | Submission Open

Keywords: nanochemistry; nanoscale materials; nanocrystals; nanostructures; nanotubes; nanofabrication; nanomedicine; metal nanoparticles

(This special issue belongs to the Section Nanochemistry)

Chemical Biology in Asia—Second Edition

edited by

Yujun Zhao

and

Li Wu

submission deadline 30 Nov 2026 | 2 articles | Viewed by 4726 | Submission Open

Keywords: chemical biology; drug discovery; bioorganic chemistry; enzymology; synthetic biology; analytical tools

(This special issue belongs to the Section Chemical Biology)

Heterocycles in Medicinal Chemistry, 4th Edition

edited by

Josef Jampilek

submission deadline 30 Nov 2026 | 6 articles | Viewed by 4713 | Submission Open

Keywords: drugs; heterocycles; pharmacophore; drug design; computer study; synthesis; analysis; natural compounds; carbohydrates; physicochemical properties; ADMET; biological screening; chemical biology; biological chemistry; biomaterials

(This special issue belongs to the Section Medicinal Chemistry)

Phenolic Compounds: Chemistry and Health Benefits

edited by

Mirela Kopjar

and

Josipa Krezić

submission deadline 30 Nov 2026 | 9 articles | Viewed by 4698 | Submission Open

Keywords: phenolic compounds; polyphenols; antioxidant activity; bioactivity; extraction techniques; chemical characterization; stability; bioavailability; functional foods

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

Design and Synthesis of Novel Adsorbents for Pollutant Removal, 2nd Edition

edited by

Inna V. Melnyk

submission deadline 30 Nov 2026 | 4 articles | Viewed by 4356 | Submission Open

Keywords: wastewater treatment; adsorbents; sustainable materials; adsorption mechanisms; surface chemistry; selective adsorption

(This special issue belongs to the Section Physical Chemistry)

Innovative Strategies for the Extraction, Processing, and Encapsulation of Food Bioactive Compounds

edited by

Adem Gharsallaoui

submission deadline 30 Nov 2026 | 2 articles | Viewed by 3617 | Submission Open

Keywords: bioactive compounds; extraction techniques; green and sustainable approaches; processing technologies; encapsulation systems; stability and bioavailability; food chemistry and nanotechnology; functional food applications

(This special issue belongs to the Section Food Chemistry)

Advances in Biomaterials: Preparation, Properties and Applications in Biomedicine and Tissue Engineering

edited by

Lei Nie

and

Chao Wang

submission deadline 30 Nov 2026 | 3 articles | Viewed by 3614 | Submission Open

Keywords: biomaterials; decellularized extracellular matrix; tissue engineering; biomedicine; dECM scaffold; bioink; hydrogels

(This special issue belongs to the Section Materials Chemistry)

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

edited by

Maciej Tarnowski

submission deadline 30 Nov 2026 | 4 articles | Viewed by 3551 | 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)

Advances in Electrochemical Reactions, Mechanisms and Sensing Applications

edited by

Angel A. J. Torriero

submission deadline 30 Nov 2026 | 2 articles | Viewed by 3453 | Submission Open

Keywords: electrochemical reactions; reaction mechanisms; electrocatalysis; electrochemical sensing; organic and organometallic compounds; analytical electrochemistry

(This special issue belongs to the Section Electrochemistry)

Chemical Composition and Functional Properties of Food By-Products

edited by

Renata Różyło

submission deadline 30 Nov 2026 | 2 articles | Viewed by 3453 | Submission Open

Keywords: food by-products; chemical composition; functional properties; antioxidant activity; sustainable food processing

(This special issue belongs to the Section Food Chemistry)

Natural Bioactive Compounds: Antioxidant Properties and Associated Biological Activities

edited by

Nguyen Van Quan

submission deadline 30 Nov 2026 | 5 articles | Viewed by 3384 | Submission Open

Keywords: natural compounds; bioactive compounds; antioxidant activity; biological activities; chemical analysis; structure-function relationships; advanced extraction methods

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

New Advances in Radiopharmaceutical Sciences, 2nd Edition

edited by

Elisabeth Eppard

submission deadline 30 Nov 2026 | 3 articles | Viewed by 3196 | Submission Open

Keywords: radiopharmacy/radiopharmaceuticals; radiochemistry; radionuclide therapy; theranostics; PET; SPECT; tadiolabeling techniques; radionuclide production; nuclear medicine

(This special issue belongs to the Section Medicinal Chemistry)

Recent Progress in Environmental Analytical Chemistry

edited by

Tony Venelinov

and

Stefan Tsakovski

submission deadline 30 Nov 2026 | 3 articles | Viewed by 3111 | Submission Open

Keywords: environmental monitoring; water, air and soil pollution; pollution analysis; environmental toxicity; analytical chemistry; chemometrics; method development for analysis of environmental compartments; method validation

(This special issue belongs to the Section Analytical Chemistry)

Analyses and Applications of Phenolic Compounds in Food—3rd Edition

edited by

Ana Teresa Sanches-Silva

and

Oscar Núñez

submission deadline 30 Nov 2026 | 3 articles | Viewed by 2942 | Submission Open

Keywords: phenolics; extraction; identification; applications in food matrix

(This special issue belongs to the Section Food Chemistry)

Application of Analytical Methods in Food, Drug, and Natural Products Research: 3rd Edition

edited by

Alessandra Biancolillo

and

Angelo Antonio D'Archivio

submission deadline 30 Nov 2026 | 4 articles | Viewed by 2929 | Submission Open

Keywords: food characterization; food quality check; natural products’ characterization; natural products’ properties; novel analytical methods in food/natural products analysis; drugs characterization; drugs quality check

(This special issue belongs to the Section Analytical Chemistry)

Essential Oils and Their Derivatives: Characterization, Biological Activity and Application

edited by

Noura Ahmed

submission deadline 30 Nov 2026 | 2 articles | Viewed by 2888 | Submission Open

Keywords: essential oils; aromatic plants; natural products; bioactive compounds; biological activities; pharmacology of volatiles; structure elucidation; isolation techniques

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

Current Research in Wine Chemistry and Analysis

edited by

Elisavet Bouloumpasi

submission deadline 30 Nov 2026 | 2 articles | Viewed by 2813 | Submission Open

Keywords: wine chemistry; analytical methods; sensory properties; phenolic compounds; fermentation chemistry

(This special issue belongs to the Section Food Chemistry)

Advances in Amylases, 2nd Edition

edited by

Stefan Janecek

submission deadline 30 Nov 2026 | 4 articles | Viewed by 2727 | Submission Open

Keywords: enzyme; alpha-amylase enzyme; starch and glycogen; gut microbiome oriented study

(This special issue belongs to the Section Bioorganic Chemistry)

Algal Biomolecules for Food and Pharmaceutical Innovations: Extraction, Characterization and Applications

edited by Renu Geetha Bai

submission deadline 30 Nov 2026 | 1 articles | Viewed by 2632 | 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)

New Achievements and Challenges in Food Chemistry, 2nd Edition

edited by

Jie Chen

and Qiuming Chen

submission deadline 30 Nov 2026 | 3 articles | Viewed by 2555 | Submission Open

Keywords: food processing innovations; alternative proteins; bioactive compounds; food safety; food storage; flavor chemistry; food enzyme design; AI-assisted technologies; novel analytical methods

(This special issue belongs to the Section Food Chemistry)

Physical–Chemical Interactions and Composition–Structure–Property Modifications During Food Processing

edited by

Emilia Janiszewska-Turak

Anna Gramza-Michałowska

and

Karolina Szulc

submission deadline 30 Nov 2026 | 1 articles | Viewed by 2506 | Submission Open

Keywords: structure; food; thermal properties; chemical composition

(This special issue belongs to the Section Food Chemistry)

Plasmonic Metal Nanoparticles: From Synthesis to Major Applications

edited by

Vladimir V. Kitaev

submission deadline 30 Nov 2026 | 1 articles | Viewed by 2494 | Submission Open

Keywords: metal nanoparticles and nanoclusters; plasmonic metal nanoparticles; metal nanocomposites; shape-selected synthesis; size-selected synthesis; functional properties; high-resolution electron microscopy; surface plasmon resonance; interfacial properties; surface modification; catalysis; plasmonics; surface-enhanced Raman scattering; biomedical sensing; environmental sensing

(This special issue belongs to the Section Physical Chemistry)

Advances in Organic Materials for Energy, Optoelectronics, and Electronics

edited by

Tersilla Virgili

and

David Lidzey

submission deadline 30 Nov 2026 | 2 articles | Viewed by 2251 | Submission Open

Keywords: organic semiconductors; perovskites; solar cells; LEDs; lasers; microcavities; photodetectors; optoelectronics

(This special issue belongs to the Section Applied Chemistry)

Bioactive Phytochemicals from Plants: Pharmacological and Therapeutic Applications

edited by

Maria das Graças Almeida

and

Jefferson Romáryo Duarte da Luz

submission deadline 30 Nov 2026 | 3 articles | Viewed by 2140 | Submission Open

Keywords: bioactive phytochemicals; medicinal plants; natural products; pharmacological activity; therapeutic applications; antioxidant compounds

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

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