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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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Advanced Materials for Environmental Remediation: Design and Applications

edited by Meijuan Chen and Yuru Wang

submission deadline 28 Feb 2026 | 3 articles | Viewed by 5681 | Submission Open

Keywords: advanced materials; environmental remediation; nanomaterials; biomaterials; porous materials; composites; water purification; air purification; soil remediation

(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 28 Feb 2026 | 7 articles | Viewed by 5592 | Submission Open

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

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

Bioactive Compounds in Foods and Their By-Products

edited by

Irene Dini

submission deadline 28 Feb 2026 | 3 articles | Viewed by 5587 | Submission Open

Keywords: circular economy; food analytical method; food analytical method validation; bioactives bioavailability; suitable agronomic technique; food toxicology

(This special issue belongs to the Section Food Chemistry)

Functional Porous Frameworks: Synthesis, Properties, and Applications

edited by

Raed Abu-Reziq

submission deadline 28 Feb 2026 | 4 articles | Viewed by 5471 | Submission Open

Keywords: metal– organic frameworks; covalent organic frameworks; mesoporous silica; periodic mesoporous organosilicas; catalysis; biomedical applications; energy storage; environmental remediation

(This special issue belongs to the Section Materials Chemistry)

Metallic Nanoclusters and Their Interaction with Light

edited by

Ludmila Otilia Cinteza

and

Vlad Neacșu

submission deadline 28 Feb 2026 | 3 articles | Viewed by 5461 | Submission Open

Keywords: nanoclusters; photophysics; photocatalysis; imaging; phototherapy

(This special issue belongs to the Section Applied Chemistry)

Chemical Biology of Antimicrobial Resistance, 2nd Edition

edited by

Qilin Yu

submission deadline 28 Feb 2026 | 2 articles | Viewed by 4969 | Submission Open

Keywords: antimicrobial resistance; resistance mechanism; antibiotics; diagnostics; new mode of action; antibiotic target; structure– activity relationship; molecular probe

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

Design, Synthesis and Biological Evaluation of Novel Small Molecules Inhibitors, 2nd Edition

edited by

Letizia Giampietro

submission deadline 28 Feb 2026 | 3 articles | Viewed by 4946 | Submission Open

Keywords: small molecules; inhibitors; natural products; drug design; synthetic strategies; structure– activity relationship; docking studies; drug delivery; in vivo; in vitro; and ex vivo evaluation; biological activity; molecular mechanisms

(This special issue belongs to the Section Medicinal Chemistry)

Polymeric Liquid Crystals and Applications, 2nd Edition

edited by

Pedro Marques de Almeida

Anupam Sengupta

and

Mateusz Mrukiewicz

submission deadline 28 Feb 2026 | 3 articles | Viewed by 4635 | Submission Open

Keywords: phases; structures and ordering; self-assembly; colloids; instabilities; pattern formation and chaos; fibers; biological and bio-inspired liquid crystals; polymer-liquid crystal blends; conductive liquid crystals; switchable polymers; nanostructured systems; supramolecules; polymers; elastomers and gels; photosensitive liquid crystals; confined liquid crystals; molecular design; synthesis and new materials; sensors; actuators; O-LED and polymer LCD devices; conducting polymer liquid crystals; biopolymer liquid crystals; drug delivery; mathematical modelling; novel applications of liquid crystalline systems

(This special issue belongs to the Section Applied Chemistry)

Nutritional Components of Non-Animal Origin Foods: Structure, Synthesis, Functions and Mechanisms

edited by

Jie Zhang

, Zhengyi Wei and Tiehua Zhang

submission deadline 28 Feb 2026 | 3 articles | Viewed by 4303 | Submission Open

Keywords: non-animal origin foods; nutritional components; bioactive compounds; human diseases; health benefits; epidemiological and clinical studies; action mechanism

(This special issue belongs to the Section Food Chemistry)

Sustainable Chemical Approaches for Wastewater Treatment and Resource Utilization

edited by Jingtao Bi and

Panpan Zhang

submission deadline 28 Feb 2026 | 5 articles | Viewed by 3916 | Submission Open

Keywords: wastewater treatment; functional materials; green chemical processes; redox; adsorption; catalysis; membrane separation

(This special issue belongs to the Section Applied Chemistry)

Metal-Based Drugs: Past, Present and Future, 3rd Edition

edited by

Roxana Liana Lucaciu

and

Adriana Corina Hangan

submission deadline 28 Feb 2026 | 5 articles | Viewed by 3892 | Submission Open

Keywords: metal-based drugs; synthesis; characterization; docking; biological activity; diagnosis; therapeutic tool

(This special issue belongs to the Section Chemical Biology)

Lignocellulosic Materials, 2nd Edition

edited by

Bruno Medronho

and

Hugo Duarte

submission deadline 28 Feb 2026 | 2 articles | Viewed by 3652 | Submission Open

Keywords: biomass valorization; biopolymers; lignocellulose; green chemistry; bio-based materials; environmental remediation

(This special issue belongs to the Section Materials Chemistry)

Synthesis and Crystal Structure Studies of Metal Complexes

edited by Anna Świtlicka

submission deadline 28 Feb 2026 | 3 articles | Viewed by 3435 | Submission Open

Keywords: synthesis; crystal structure; physical properties; X-ray diffraction; coordination complexes; d- and f-block metal atoms; functional materials; applications

(This special issue belongs to the Section Inorganic Chemistry)

Molecular Insights into Bioluminescence and Chemiluminescence

edited by

Stefan Schramm

submission deadline 28 Feb 2026 | 3 articles | Viewed by 3301 | Submission Open

Keywords: bioluminescence; chemiluminescence; chemical mechanism; luminescence; photophysics; photochemical processes; bioluminescent enzymes; luminescent sensing and imaging

(This special issue belongs to the Section Photochemistry)

Antioxidant, Anti-Inflammatory Activities and Skin Protective Potential of Extractions from Natural Plants

edited by Gerardo Magela Vieira-Júnior and

Paulo Michel Pinheiro Ferreira

submission deadline 28 Feb 2026 | 3 articles | Viewed by 3288 | Submission Open

Keywords: antioxidants; anti-inflammatory; skin protection; phenolic compounds; extracts derived from plants; natural products

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

Advances in Metal/Oxide Interfacial Catalysts: Design, Properties, and Applications

edited by Mausumi Mahapatra

submission deadline 28 Feb 2026 | 3 articles | Viewed by 3109 | Submission Open

Keywords: oxides; metal– oxide interface; catalysts; active sites; heterogeneous catalysis

(This special issue belongs to the Section Physical Chemistry)

Applied Innovative Insights in Selective Organic Hetero-Synthesis

edited by

Mircea Darabantu

and

Ionel Mangalagiu

submission deadline 28 Feb 2026 | 2 articles | Viewed by 2847 | Submission Open

Keywords: hetarenes; hetero-alycycles; regioisomerism; diastereomerism; enantiomerism; biomimetics and new chemical entities (NCEs); “ intelligent” molecules

(This special issue belongs to the Section Organic Chemistry)

Advanced Electrode Materials for Electrochemical Energy Storage and Conversion, 3rd Edition

edited by

Jin Niu

Nannan Guo

Yaxin Chen

and Juzhe Liu

submission deadline 28 Feb 2026 | 1 articles | Viewed by 2361 | Submission Open

Keywords: clean energy; advanced electrode material; morphology and structural regulation; electrocatalysis; battery; supercapacitor; electrochemical energy storage; electrochemical energy conversion

(This special issue belongs to the Section Electrochemistry)

Advanced Nanomaterials for Fluorescence Imaging and Phototherapy

edited by Zhourui Xu and

Jiandong Huang

submission deadline 28 Feb 2026 | 1 articles | Viewed by 2265 | Submission Open

Keywords: phototheranostics; fluorescence imaging; photothermal therapy; photodynamic therapy; NIR-II region; nanoformulation

(This special issue belongs to the Section Photochemistry)

Analytical Technologies and Intelligent Applications in Future Food

edited by

Chang-Wei Hsieh

, Chunhuan Liu, Shipeng Yin and Xiuhang Chai

submission deadline 28 Feb 2026 | 2 articles | Viewed by 2138 | Submission Open

Keywords: artificial intelligence (AI) in food chemistry; machine learning for food analysis; intelligent sensing systems for food; food quality; safety; and authenticity; non-targeted screening in food; detection of food adulteration and contaminants; big data analytics in food science; smart food processing and quality control

(This special issue belongs to the Section Food Chemistry)

Nutritional Properties, Sensory Profile and Bioactive Components of Food, 3rd Edition

edited by

Aldona Sobota

and

Grażyna Cacak-Pietrzak

submission deadline 28 Feb 2026 | 3 articles | Viewed by 2049 | Submission Open

Keywords: food analysis; bioactive compounds; sensory characteristics; food composition; functional food ingredients

(This special issue belongs to the Section Food Chemistry)

Advances in Metallocene Chemistry

edited by

Karlheinz Sünkel

submission deadline 28 Feb 2026 | 2 articles | Viewed by 2040 | Submission Open

Keywords: metallocene; macromolecular chemistry; bio-organometallic chemistry; catalysis

(This special issue belongs to the Section Organometallic Chemistry)

Density Functional Theory: From Fundamentals to Applications

edited by

Yingang Gui

submission deadline 28 Feb 2026 | 2 articles | Viewed by 1998 | Submission Open

Keywords: DFT; theoretical and computational chemistry; new functional materials; surface modification; structural optimization; electronic proprieties; chemical bond; structure; and reactivity; gas sensing; adsorption and desorption; nanomaterials and nanotechnology

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

Chemistry and Applications of Compounds Containing Quinoline or Isoquinoline Structure

edited by

Stanislav Kafka

and

José Carlos Menéndez

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1767 | Submission Open

Keywords: quinoline; isoquinoline; synthesis; molecular structure; alkaloids; fluorescence; green chemistry; crystal structure; structure– activity relationship; antitumor agents

(This special issue belongs to the Section Organic Chemistry)

Nanomaterials and Nanocomposites: Synthesis, Characterization and Applications in Environmental and Biomedical Sciences

edited by

Rita Patakfalvi

and

Ravichandran Manisekaran

submission deadline 28 Feb 2026 | 2 articles | Viewed by 1728 | Submission Open

Keywords: nanomaterials; diagnostics; therapy; anticancer; antimicrobial; adsorption; photocatalysis; sensor

(This special issue belongs to the Section Nanochemistry)

Research on Changes in Nutritional Components and Structure During Food Processing

edited by

Jinhu Tian

, Wei Qin and Natthawuddhi Donlao

submission deadline 28 Feb 2026 | 2 articles | Viewed by 1712 | Submission Open

Keywords: food structure; nutritional components; bioactive compounds; food processing; phytochemicals; health benefits

(This special issue belongs to the Section Food Chemistry)

Molecular Magnetic Response and Aromaticity

edited by Mesías Orozco-Ic

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1710 | Submission Open

Keywords: aromaticity; magnetic response calculations; magnetic shielding; magnetically induced current densities.

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

Natural Bioactive Compounds: Therapeutic Potential in the Management of Chronic Diseases

edited by

H. P. Vasantha Rupasinghe

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1649 | Submission Open

Keywords: natural bioactives; phytochemicals; polyphenols; isoprenoids; alkaloids; bioactive lipids and peptides; prebiotics; postbiotics; chronic diseases; non-communicable diseases

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

Advanced Removal of Emerging Pollutants and Its Mechanism

edited by

Daniela Roxana Popovici

Cătălina Călin

and Dorin Bombos

submission deadline 28 Feb 2026 | 2 articles | Viewed by 1620 | Submission Open

Keywords: emerging contaminants; adsorption interactions; microbial biodegradation; pollutant removal efficiency; innovative technologies

(This special issue belongs to the Section Green Chemistry)

Natural Product-Inspired Drug Discovery: From Molecular Design to Safety and Translational Pharmacology

edited by

Khalid A. El Sayed

and Hassan Y. Ebrahim

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1409 | Submission Open

Keywords: metabolism; molecular design; molecular mechanistic pathways; natural products; PKs/PDs; RNA/DNA Sequencing; toxicity/safety

(This special issue belongs to the Section Medicinal Chemistry)

Novel Organic-Inorganic Hybrid Porous Photochromic Materials

edited by Junbiao Wu

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1400 | Submission Open

Keywords: photochromism; porous materials; open-frameworks; inorganic– organic hybrid; electron transfer; light sensors; inkless printing; anticounterfeiting

(This special issue belongs to the Section Inorganic Chemistry)

Innovative Chemical Technologies for Rare Earth Element Processing

edited by Yuefei Zhang and Fang Zhou

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1397 | Submission Open

Keywords: rare-earth; weathered crust elution-deposited rare-earth ores; leaching; compound leaching agents; intermolecular interaction

Advanced Photocatalysts for Environmental Remediation and Contaminant Removal

edited by

Jingfei Luan

submission deadline 28 Feb 2026 | 2 articles | Viewed by 1354 | Submission Open

Keywords: nonbiodegradable organic contaminants; antibiotic contaminants; dye contaminants; pesticide pollutants; photocatalytic degradation; advanced photocatalysts; oxidic radicals; degradation pathways; degradation mechanism; photophysical property; photochemical property

(This special issue belongs to the Section Applied Chemistry)

Application of Natural Products in the Treatment of Neurodegenerative Diseases

edited by

Guiyi Gong

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1351 | Submission Open

Keywords: natural products; neurovascular and neurodegenerative diseases; neuroprotection; bioactive compounds; drug discovery; molecular mechanisms; multi-target therapy; neuroinflammation

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

Synthesis and Spectroscopic Characterization of Organometallic Compounds

edited by

Jacek Nycz

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1298 | Submission Open

Keywords: catalytic activity; synthesis and reactivity; spectroscopy; reaction mechanism; structural and spectroscopic characterization; turnover number (abbreviated TON); electrochemistry

(This special issue belongs to the Section Organic Chemistry)

Emerging Drug Targets: New Challenges for the Medicinal Chemist

edited by

Giovanni Ribaudo

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1269 | Submission Open

Keywords: drug repurposing; drug repositioning; drug design; target validation; molecular modeling; interaction studies; organic synthesis; artificial intelligence

(This special issue belongs to the Section Medicinal Chemistry)

Advances in Functional Foods, 2nd Edition

edited by

Jolanta Sereikaitė

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1140 | Submission Open

Keywords: functional food ingredients; delivery of bioactives; bioavailability of bioactives; technological aspects; health benefits; personalized nutrition; health claims

(This special issue belongs to the Section Food Chemistry)

Recent Advances in DNA/Protein Biosensors

edited by

Mosarof Hossain

and

Mariana Ghica

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1122 | Submission Open

Keywords: biosensors; DNA; RNA; proteins; biomarkers

(This special issue belongs to the Section Analytical Chemistry)

Functional Materials: Synthesis Strategies and Environmental Applications

edited by

Kunlei Wang

and

Zhishun Wei

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1109 | Submission Open

Keywords: environmental remediation; pollutant removal; materials chemistry; catalytic materials; environmental chemistry

(This special issue belongs to the Section Materials Chemistry)

Biocatalytic Platforms Towards Synthesis and Degradation Processes

edited by

Ewa Zymańczyk-Duda

Małgorzata Brzezińska-Rodak

and

Magdalena Klimek-Ochab

submission deadline 28 Feb 2026 | 1 articles | Viewed by 914 | Submission Open

Keywords: biotechnology; bioconversions; biodegradations; green chemistry

(This special issue belongs to the Section Bioorganic Chemistry)

Porous Materials for Environmental Pollutant Adsorption and Degradation

edited by

Alexandru Popa

and Orsina Verdeş

submission deadline 28 Feb 2026 | Viewed by 842 | Submission Open

Keywords: microporous and mesoporous materials; adsorbents; environmental applications; physical and chemical characterizations of materials; carbon capture and utilization (CCU); CO2 adsorption mechanisms; adsorbent regeneration; heterogeneous catalytic reactions

(This special issue belongs to the Section Materials Chemistry)

Oxidative Stress and Antioxidants in Degenerative Conditions

edited by Eleni A. Rekka and

Panagiotis Theodosis-Nobelos

submission deadline 28 Feb 2026 | 1 articles | Viewed by 824 | Submission Open

Keywords: antioxidants; oxidative stress; chronic-degenerative diseases; hormonal imbalance; anti-inflammatory activity; multi-targeting compounds

(This special issue belongs to the Section Medicinal Chemistry)

Chiral Nanomaterials: Synthesis, Properties, and Applications

edited by

Changlong Hao

submission deadline 28 Feb 2026 | 1 articles | Viewed by 805 | Submission Open

Keywords: chiral nanomaterial; property; synthesis; application

(This special issue belongs to the Section Applied Chemistry)

Porous Carbon Materials: Preparation and Application, 2nd Edition

edited by

Jianxiao Yang

submission deadline 28 Feb 2026 | 1 articles | Viewed by 570 | Submission Open

Keywords: porous carbon materials; energy storage; environmental science; sensors; adsorption; catalysis

(This special issue belongs to the Section Applied Chemistry)

Advances in Chemical Analysis Procedures (Part III): Future Trends in Reducing the Environmental Impact

edited by

and Fotouh Rashed

submission deadline 28 Feb 2026 | 1 articles | Viewed by 472 | Submission Open

Keywords: green approaches; analytical chemistry; instrumental analysis; sample preparation; quantitative analysis; AI; tools; metrics

(This special issue belongs to the Section Analytical Chemistry)

Natural Dyes for the Textile and Leather Industries—for the Future’s Sustainability

edited by

Ricardo Calhelha

Sandrina A. Heleno

and

Isabel P. Fernandes

submission deadline 28 Feb 2026 | Viewed by 420 | Submission Open

Keywords: natural dyes; textile and leather industries; extraction methodologies; pigment characterization; new dye to fiber binding agents and strategies; bioactive properties; industrial applications

(This special issue belongs to the Section Colorants)

Chemical Modifications and Interactions of Food Macromolecules: Mechanisms and Impacts on Quality

edited by Ling Liu and Yixiao Shen

submission deadline 28 Feb 2026 | 1 articles | Viewed by 387 | Submission Open

Keywords: lipid; protein; molecular interactions; food safety; food stability

(This special issue belongs to the Section Food Chemistry)

Plant Bioactive Compounds in Pharmaceuticals, 2nd Edition

edited by