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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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Analysis and Biological Evaluation of Bioactive Compounds from Natural Sources, 2nd Edition

edited by Luana Pulvirenti and Rosanna Avola

submission deadline 31 Dec 2025 | 5 articles | Viewed by 4007 | Submission Open

Keywords: natural products; natural product chemistry; polyphenols; vegetable extract profiling; herbal medicine; phytochemicals; biological applications of natural products; mechanism of action

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

Design, Modifications, and Medical Application of Polymer-Based Materials

edited by

Fusun Ozer

submission deadline 31 Dec 2025 | 2 articles | Viewed by 3950 | Submission Open

Keywords: polymer-based materials; synthetic polymers; drug delivery systems; biocompatibility; biomaterials; tissue engineering; wound healing; medical devices

(This special issue belongs to the Section Materials Chemistry)

Role of Natural Products in Inflammation

edited by

Katarína Bauerová

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3892 | Submission Open

Keywords: inflammation; natural compounds; terrestrial plants; marine plants; NF-kB; hemoxygenase and cyclooxygenase pathways

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

Synthesis of Bioactive Compounds, 3rd Edition

edited by

Brindusa Tiperciuc

submission deadline 31 Dec 2025 | 6 articles | Viewed by 3809 | Submission Open

Keywords: biological activity; nature-derived molecules; heterocyclic moieties; aromatic species; structural diversity; alkaloids; organic synthesis

(This special issue belongs to the Section Organic Chemistry)

Biomass Materials in Materials Chemistry: Preparation and Characterization, 2nd Edition

edited by

Caiqin Qin

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3758 | Submission Open

Keywords: biomass material (including chitosan; chitin; starch; and biomass waste); catalyst; food packing; coating and film; adsorption

(This special issue belongs to the Section Materials Chemistry)

Synthesis, Modification and Application of Heterocyclic Compounds

edited by

Xinwei He

and Yongjia Shang

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3692 | Submission Open

Keywords: heterocyclic compounds; synthesis; modification; asymmetric catalysis; cyclization; natural products

(This special issue belongs to the Section Organic Chemistry)

Innovative Technologies for Functional Foods Development

edited by

Maria Ciudad-Mulero

Patricia Morales

and

Virginia Fernández-Ruiz

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3680 | Submission Open

Keywords: nutraceuticals; functional foods; plant ingredients; phytochemicals; health claims; in vitro and in vivo studies

(This special issue belongs to the Section Food Chemistry)

Advances in Photocatalytic Degradation of Organic Pollutants

edited by Qianqian Liu, Quan Zhang and

Jing Ding

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3655 | Submission Open

Keywords: photocatalysis; photocatalytic degradation of organic pollutants; functional materials; semiconductor photocatalysts; DFT

(This special issue belongs to the Section Green Chemistry)

Synthesized and Functionalized Nanoparticles in Natural Compounds

edited by

Federica Valentini

submission deadline 31 Dec 2025 | 1 articles | Viewed by 3453 | Submission Open

Keywords: nanoparticles; green synthesis; two step-based mechanism growth for nanostructures; template synthetic approach; essential oil (EO); functionalized nanoparticles; shape factor (SF); antibacterial features; cytotoxicity properties; cultural heritage reparation; drug delivery and discovery; nano-carrier in biotechnologies

(This special issue belongs to the Section Materials Chemistry)

Exclusive Feature Papers in Inorganic Chemistry, 3rd Edition

edited by

Andrea Bencini

Vito Lippolis

and

Matteo Savastano

submission deadline 31 Dec 2025 | 5 articles | Viewed by 3452 | Submission Open

Keywords: coordination chemistry; metal complexes; metal-based assemblies; inorganic anions; inorganic materials; coordination polymers; functional materials; chemosensors

(This special issue belongs to the Section Inorganic Chemistry)

Nanostructured Materials: Synthesis, Functionalization and Applications in Biomedicine—2nd Edition

edited by

Ying-Jie Zhu

Heng Li

and Hanping Yu

submission deadline 31 Dec 2025 | 4 articles | Viewed by 3428 | Submission Open

Keywords: nanostructured materials; biomaterials; dental materials; biomedicine; biomedical applications; drug delivery; bone defect repair; orthopedic surgery; skin wound healing; anti-tumor; biosensing; bioimaging; diagnosis; therapy

(This special issue belongs to the Section Nanochemistry)

Analytical Chemistry in Asia, 2nd Edition

edited by

Makoto Tsunoda

submission deadline 31 Dec 2025 | 4 articles | Viewed by 3215 | Submission Open

Keywords: analytical chemistry; Asia; HPLC; sample preparation; bioanalysis; mass spectrometry

(This special issue belongs to the Section Analytical Chemistry)

Porous Polymers Design, Synthesis and Applications in the Field of Catalysis, Separation and Energy

edited by

Xianguang Meng

and

Qiang Shi

submission deadline 31 Dec 2025 | 2 articles | Viewed by 3160 | Submission Open

Keywords: polymers design and synthesis; pore structure; morphology; surface modification; physical characteristics; mechanical properties; catalysis; thermal stability; transport; separation; advanced techniques

(This special issue belongs to the Section Materials Chemistry)

Cross-Coupling and Related Reactions: Past and New Reactions for the Future

edited by

Viktor Iaroshenko

and Satenik Mkrtchyan

submission deadline 31 Dec 2025 | 1 articles | Viewed by 3101 | Submission Open

Keywords: C-C- cross coupling reactions; C-C bond formation by transition metal catalysis; C-C bond formation by organocatalysis; C-C bond formation by photoredox catalysis; C-C bond formation by enzymatic catalysis; sustainability; green chemistry; new trends in C-C bond formation

(This special issue belongs to the Section Organic Chemistry)

(Mass Spectrometric) Non Target Screening–Techniques and Strategies: Volume II

edited by

Thomas Letzel

submission deadline 31 Dec 2025 | 2 articles | Viewed by 3010 | Submission Open

Keywords: mass spectrometric non-target screening; NTS workflows; NTS strategies; NTS techniques (separation; ionization; detection); HPLC; SFC; GC; CE; HRMS; MS/MS; NTS software solutions; NTS open access software; NTS data evaluation; NTS and quality management

(This special issue belongs to the Section Analytical Chemistry)

Women’s Special Issue Series: Molecules

edited by

Laura Zaccaro

Simona Golič Grdadolnik

Li Du

and

Mariana Ghica

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2921 | Submission Open

Keywords: organic chemistry; medicinal chemistry; natural products chemistry; inorganic chemistry; physical chemistry; material chemistry; chemical biology; analytical chemistry; supramolecular chemistry; theoretical chemistry; green chemistry; photochemistry

Advanced Oxidation/Reduction Processes in Water Treatment

edited by Fuxiang Tian and Yuqiong Gao

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2883 | Submission Open

Keywords: advanced oxidation processes; advanced reduction processes; disinfection byproducts; hybrid treatment processes; micropollutant removal; emerging contaminant removal

(This special issue belongs to the Section Green Chemistry)

Synthesis and Applications of Nanoparticles and Multifunctional Nanocomposites

edited by

Alexandru Mihai Grumezescu

Florian V. Dumitrache

and Iulia Ioana Lungu

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2844 | Submission Open

Keywords: nanoparticles; nanocomposites; synthesis; multifunctional platforms

(This special issue belongs to the Section Nanochemistry)

Feature Papers in Photochemistry and Photocatalysis—2nd Edition

edited by

Barbara Bonelli

submission deadline 31 Dec 2025 | 5 articles | Viewed by 2784 | Submission Open

Keywords: photocatalytic processes; quantum yield; solar light; upconversion; heterojunctions

(This special issue belongs to the Section Photochemistry)

Determination, Adsorption and Degradation Mechanisms of Environmental Pollutants

edited by Alina Catrinel Ion

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2732 | Submission Open

Keywords: environmental pollutants; adsorption mechanisms; degradation pathways; analytical techniques; nanomaterials; heavy metals; organic contaminants

(This special issue belongs to the Section Green Chemistry)

Design, Synthesis, and Catalytic Applications of Metal Complexes

edited by

Mei Wang

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2655 | Submission Open

Keywords: metal complex; metal-based material; catalysis: electrocatalysis; photocatalysis; thermocatalysis

(This special issue belongs to the Section Applied Chemistry)

Essential Oils—Third Edition

edited by

Laura De Martino

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2549 | Submission Open

Keywords: essential oils; volatile organic compounds (VOCs); chemical fingerprinting; isoprenoids; gas chromatography-mass spectrometry (GC-MS); nuclear magnetic resonance (NMR) spectroscopy; physiological functions of essential oils in plants; molecular mechanisms of essential oils; in vitro and in vivo bioactivities; antimicrobial agents; anti-infective properties; antioxidant potential; allelopathic interactions; biosynthetic pathways; extraction techniques

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

Renewable Energy, Fuels and Chemicals from Biomass, 2nd Edition

edited by

Zhuozhi Wang

and

Boxiong Shen

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2514 | Submission Open

Keywords: biomass conversion technologies; renewable energy; biofuel synthesis; catalytic biomass transformation; bioethanol; biodiesel; green/sustainable chemistry; biotechnological applications

(This special issue belongs to the Section Applied Chemistry)

Food Bioactive Components in Functional Foods and Nutraceuticals

edited by

Maria Aspri

Dimitrios Tsaltas

and

Vlasios Goulas

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2504 | Submission Open

Keywords: functional foods; nutraceuticals; bioactive compounds; health benefits; disease prevention; bioavailability

(This special issue belongs to the Section Food Chemistry)

Bioactive Molecules in Foods: From Sources to Functional Applications

edited by

Anna Jakubczyk

Kamila Rybczyńska-Tkaczyk

and

Katarzyna Lisiecka

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2458 | Submission Open

Keywords: food compounds; biological activity; nutrition; health; food products; diet supplementary

(This special issue belongs to the Section Food Chemistry)

Insight into Electrochemical and Photocatalysis/Photoelectrochemical Hydrogen Evolution

edited by

Yanxin Chen

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2317 | Submission Open

Keywords: hydrogen evolution reactions (HER); hydrogen production; electrocatalysts (electrocatalysis); photocatalysts (photocatalysis); photoelectrochemical (PEC); energy conversion; (nano)materials

(This special issue belongs to the Section Materials Chemistry)

Exclusive Contributions by the Editorial Board Members (EBMs) of the Inorganic Chemistry Section of Molecules 2025

edited by

Athanassios C. Tsipis

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2311 | Submission Open

Keywords: inorganic chemistry; coordination chemistry; main-group chemistry; bioinorganic chemistry; solid-state chemistry; organometallic compounds; inorganic cluster chemistry; metal-based assemblies; inorganic anions; inorganic materials; theoretical inorganic chemistry

(This special issue belongs to the Section Inorganic Chemistry)

Innovations in Metal–Organic Frameworks: Their Synthesis, Properties and Multifaceted Applications

edited by

Francis Verpoort

and

Cheng-Xing Cui

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2289 | Submission Open

Keywords: MOFs; heterogeneous catalysis; storage; adsorption; photocatalysis; fluorescent sensors; electronic devices

(This special issue belongs to the Section Materials Chemistry)

Discovery of Microbial Natural Products

edited by

Yun Kwon

and

Sang-Jip Nam

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2273 | Submission Open

Keywords: microbial natural products; determination of structure; microorganism; drug candidate; bioactive secondary metabolites; microbial biotechnology

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

Innovative Chemical Pathways for CO₂ Conversion

edited by

Guillermo Díaz-Sainz

and Juqin Zeng

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2216 | Submission Open

Keywords: CO2 conversion; chemical reactions; CO2 utilization; CO2 reduction; green chemistry; sustainable chemistry; CO2 recycling; carbon neutrality; renewable energy; carbon footprint reduction; environmental impact; carbon-based fuels; sustainable processes; climate change mitigation; CO2 emissions; energy transition

(This special issue belongs to the Section Green Chemistry)

Anticancer Computational Drug Discovery: New Approaches, New Targets, and New Treatments

edited by

H. Andy Zhong

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2183 | Submission Open

Keywords: anticancer; structure-based drug design; de novo drug design; artificial intelligence (AI); big data machine learning and virtual screening

(This special issue belongs to the Section Medicinal Chemistry)

Ionic Liquids and Deep Eutectic Solvents in Catalysis: Current Status and Future Outlook

edited by

Ignacio López-Coca

and Peter A. Goodrich

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2032 | Submission Open

Keywords: ionic liquids; deep eutectic solvents; green chemistry; catalysis; sustainable synthesis; homogeneous catalysis; heterogeneous catalysis; enzymatic catalysis; microwave irradiation; ultrasonic activation

(This special issue belongs to the Section Green Chemistry)

Low-Dimensional Nanomaterials: Chemical Functionalization and Advanced Applications

edited by

Lin Wang

and

Jing Li

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2016 | Submission Open

Keywords: low-dimensional materials; nanomaterials; surface characterization; chemical functionalization; surface spectroscopy; interface engineering; two-dimensional materials; surface modification; nanotechnology; surface reactivity

(This special issue belongs to the Section Materials Chemistry)

Exploring the Therapeutic Potential of Natural Antioxidants

edited by

Dong Wook Shin

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1941 | Submission Open

Keywords: oxidant stress; antioxidants; age; age-related disease; natural plants; polyphenol; fermentation

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

Phytochemical Investigation of Bioactive Constituents from Medicinal Plants

edited by

Agnieszka Szewczyk

and

Inga Kwiecien

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1748 | Submission Open

Keywords: primary metabolites; secondary metabolites; biological activity; phytochemistry; natural products; HPLC-analysis; spectral analysis; medicinal plants

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

Chemistry and Health: Nitrogen Heterocycle Chemistry and Medicinal Chemistry, 2nd Edition

edited by

Costel Moldoveanu

submission deadline 31 Dec 2025 | 3 articles | Viewed by 1713 | Submission Open

Keywords: heterocycles; azines; azoles; anticancer; anti-tuberculosis; antimicrobial; growth factors

(This special issue belongs to the Section Medicinal Chemistry)

Solar Energy Conversion and Information Interpretation Based on Novel Nanotechnologies

edited by

Ming-Yu Li

and

Sisi Liu

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1685 | Submission Open

Keywords: catalytic materials and applications; solar cells; photodetection; materials synthesis and characterizations; materials theory and principles; nanostructures and nanomaterials; optoelectronic materials; photovoltaics photocatalysis materials; plasmonics and applications; sensors and applications

(This special issue belongs to the Section Materials Chemistry)

Development and Application of Environmentally Friendly Surfactants

edited by Christina Vakh

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1653 | Submission Open

Keywords: surfactants; green analysis; synthesis of sustainable surfactants; application of sustainable surfactants

(This special issue belongs to the Section Green Chemistry)

Vibrational Spectroscopy and Imaging for Chemical Application

edited by

Barry K. Lavine

and

Karl Booksh

submission deadline 31 Dec 2025 | 3 articles | Viewed by 1645 | Submission Open

Keywords: Raman spectroscopy; infrared spectroscopy; Raman image analysis; infrared image analysis; chemometrics; multiway analysis; multivariate curve resolution; alternating least squares; multivariate image analysis; classification; machine learning

(This special issue belongs to the Section Analytical Chemistry)

G-quadruplexes in Chemical Biology and Drug Discovery

edited by

Stefano D’Errico

, Gennaro Piccialli and Maria Marzano

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1643 | Submission Open

Keywords: DNA; G-quadruplex; telomeres; supramolecular chemistry; oligonucleotides; drug discovery; chemical biology

(This special issue belongs to the Section Medicinal Chemistry)

Recent Advances in Catalysts for Biomass Conversion

edited by

Minghao Li

and Chunlin Chen

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1625 | Submission Open

Keywords: biomass utilization; biomass platform chemicals; lignocellulose model compounds; catalysis; bio-based materials

Recent Advances in Organochalcogen Chemistry

edited by

Francesca Mangiavacchi

Damiano Tanini

and

Claudio Santi

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1595 | Submission Open

Keywords: sulfur; selenium; tellurium; chalcogen bond; materials science; synthetic methodologies; catalysis; heterocycles; biomimetics

(This special issue belongs to the Section Organic Chemistry)

BODIPYs: State of the Art and Future Perspectives

edited by

Jorge Bañuelos Prieto

and

Edurne Avellanal-Zaballa

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1560 | Submission Open

Keywords: BODIPYs; spectroscopy; synthesis; quantum mechanics; tunable laser; bioimaging; photodynamic therapy; optoelectronics

(This special issue belongs to the Section Colorants)

Zeolites and Related Materials

edited by Svetlana Mintova and Eddy Dib

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1551 | Submission Open

Keywords: zeolites; crystal growth; structures; molecular interactions; diffusion; in situ

(This special issue belongs to the Section Materials Chemistry)

Bioactive Compounds and Antioxidant Activity of Extracts from Natural Plants, 2nd Edition

edited by

Aleksandra Sentkowska

submission deadline 31 Dec 2025 | 3 articles | Viewed by 1514 | Submission Open

Keywords: bioactive compounds; natural plant products; antioxidant activity; extraction methods; polyphenols; flavonoids

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

NUCLEO-OMICS24

edited by

Giovanni N. Roviello

and

Valentina Mittova

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1455 | Submission Open

Keywords: dynamics of biomacromolecule-ligand interactions; photoactivatable polymeric nanoconstructs for unconventional therapies; NMR-based metabolomics for bioactive natural products; supramolecular architectures and multivalent tools in biomedical applications

(This special issue belongs to the Section Chemical Biology)

Intermolecular Interaction Predictions for Large Molecular Systems

edited by

Shuhua Li

and Wei Li

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1438 | Submission Open

Keywords: intermolecular interactions; low scaling quantum chemistry; machine learning; experimental techniques; computational predictions

(This special issue belongs to the Section Physical Chemistry)

Advances in Electrochemical Nanocomposites

edited by

Bishweshwar Pant

and

Gunendra Prasad Ojha

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1371 | Submission Open

Keywords: nanomaterials; nanocomposites; electrocatalysis; electrochemical properties

(This special issue belongs to the Section Applied Chemistry)

Organometallic Chemistry in Europe

edited by

Gianpiero Cera

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1357 | Submission Open

Keywords: organometallic chemistry; complexes; metals; metal–carbon bonding; main group metals; transition metals; lanthanides; catalysis; ligands; metal chemistry; phosphines; N-heterocyclic carbenes; bipyridines; homogeneous catalysis; cross coupling; bond activation; ancillary ligands; photoredox catalysis; asymmetric catalysis; crystallography; spectroscopy; supramolecular chemistry; self-assembly; metal–organic assemblies; molecular architectures; supramolecular materials; chemosensors

(This special issue belongs to the Section Organometallic Chemistry)

Inorganic Chemistry in Europe 2025

edited by

Wolfgang Weigand

and

Sotiris K Hadjikakou

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1357 | Submission Open

Keywords: inorganic chemistry (main group and transition metal chemistry); coordination and organometallic chemistry; bioinorganic chemistry; sustainable catalysis and green chemistry; nanotechnology and smart materials; energy storage and conversion; metallodrugs and imaging agents; computational chemistry and AI in material science

(This special issue belongs to the Section Inorganic Chemistry)

Displaying special issue 501-550 on page 11 of 20.

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