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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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Extraction and Adsorption of Chemicals from Wastewater

edited by Peng Liu,

Mohammed Baalousha

and

Yongchang Sun

submission deadline 31 Mar 2026 | Viewed by 75 | Submission Open

Keywords: environmental depollution; adsorption processes; catalytic decontamination; porous and layered materials; characterization methods; adsorption removal

(This special issue belongs to the Section Green Chemistry)

Covalent and Noncovalent Interactions in Crystal Chemistry, 3rd Edition

edited by

Xin Huang

and

Ting Wang

submission deadline 31 Mar 2026 | Viewed by 69 | Submission Open

Keywords: covalent and noncovalent interactions; crystal chemistry; molecular recognition and assembly; crystal structure; crystal engineering

(This special issue belongs to the Section Molecular Structure)

Advanced Materials and Technologies for Wastewater Treatment—2nd Edition

edited by

Yesica Vicente-Martińez

submission deadline 31 Mar 2026 | Viewed by 65 | Submission Open

Keywords: photocatalysis; membrane filtration; ion exchange; biological degradation; nanomaterials; carbon materials; metal oxides; titanium dioxide; water purification; waste water treatment; photodegradation; reaction mechanism

(This special issue belongs to the Section Green Chemistry)

Interaction Between Biomacromolecules and Dietary Antioxidants—Characterisation and Physiological Significance

edited by

Miloš Šunderić

Nikola Gligorijević

and

Olgica Nedic

submission deadline 31 Mar 2026 | Viewed by 64 | Submission Open

Keywords: protein– ligand interaction; food matrix; dietary antioxidants; spectroscopic methods; molecular docking; cell culture

(This special issue belongs to the Section Chemical Biology)

Advances in Extraction, Characterization and Application of High-Value Compounds

edited by

Sueli Rodrigues

and

Rhonyele Maciel da Silva

submission deadline 31 Mar 2026 | Viewed by 61 | Submission Open

Keywords: bioactive compounds; green extraction techniques; optimization parameters; by-product valorization; health-promoting properties

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

Advances in Analytical Strategies to Study Cultural Heritage Samples, 3rd Edition

edited by

Maria Luisa Astolfi

and

Ilaria Serafini

submission deadline 31 Mar 2026 | Viewed by 57 | Submission Open

Keywords: sample preparation; trace elements; multielement analysis; spectrometric techniques; organic compounds; authenticity; chemical characterization; biological remains; pigments

(This special issue belongs to the Section Analytical Chemistry)

Advances in European Electrochemistry

edited by

Agnieszka Nosal-Wiercińska

submission deadline 31 Mar 2026 | Viewed by 55 | Submission Open

Keywords: electrode processes; “ cap-pair” effect; electrodes; electrode materials modifications; (bio)electroanalytical applications; double layer interface; adsorption; electrocatalysis; supercapacitor; batteries; fuel cell; voltammetry; electrochemical impedance spectroscopy

(This special issue belongs to the Section Electrochemistry)

Cyclodextrin Polymers for Environmental Applications

edited by

Dina Maria Bairrada Murtinho

and

Gianluca Utzeri

submission deadline 31 Mar 2026 | Viewed by 55 | Submission Open

Keywords: cyclodextrins; cyclodextrin derivatives; hydrogels; membranes; nanosponges; environmental remediation; agriculture; sustainability

(This special issue belongs to the Section Materials Chemistry)

Stimuli-Responsive Molecular Crystals: From Structure to Function

edited by

Željko Skoko

submission deadline 31 Mar 2026 | Viewed by 55 | Submission Open

Keywords: stimuli-responsive molecular crystals; thermosalient and photosalient effects; supramolecular chemistry and crystal engineering; molecular design and polymorphism; anisotropic thermal expansion and molecular packing effects; solid-state phase transitions; crystallography under external stimuli; structure– property relationships in molecular solids; computational chemistry of molecular crystals

(This special issue belongs to the Section Materials Chemistry)

Biodegradable Polymers in Asia

edited by

Jinlin He

submission deadline 31 Mar 2026 | Viewed by 55 | Submission Open

Keywords: biodegradable polymers; performance optimization; applications

(This special issue belongs to the Section Macromolecular Chemistry)

Biosynthesis, Structural Elucidation, and Pharmaceutical Applications of Alkaloids

edited by

Stefano Dall'Acqua

submission deadline 31 Mar 2026 | Viewed by 50 | Submission Open

Keywords: alkaloids; nitrogen-containing compounds; therapeutic agents; natural products; structure– activity relationships; biosynthesis; chemical synthesis; isolation

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

Novel Functional Nanomaterials for Energy, Environmental and Sensing Applications

edited by

Jing Hu

, Ming Li and Miao Cheng

submission deadline 31 Mar 2026 | Viewed by 49 | Submission Open

Keywords: gas sensor and device; fluorescence probe; environmental catalysis; environmental monitoring; hydrogen production and safety; energy storage materials

(This special issue belongs to the Section Materials Chemistry)

Advanced Flexible Sensing Materials: Design, Mechanisms, and Applications

edited by Tianxue Zhu and Lifang Liu

submission deadline 31 Mar 2026 | Viewed by 48 | Submission Open

Keywords: flexible sensing materials; polymer- and hydrogel-based sensing materials; nanocomposites for flexible sensors; stretchable and self-healing materials; scalable fabrication of flexible sensing materials; wearable and implantable devices; durability and environmental stability of sensing materials

(This special issue belongs to the Section Materials Chemistry)

Understanding the Structure and Properties of Adaptable Solvents via Computational Methods and Their Application

edited by Richard P. Matthews

submission deadline 31 Mar 2026 | Viewed by 43 | Submission Open

Keywords: solvent design; ionic liquids; deep eutectic solvents; density functional theory (DFT); non-covalent interactions; structure– property relationships

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

Synergistic Effect in Nanomaterials for Electrocatalytic Hydrogen and Oxygen Conversion

edited by

Ce Han

submission deadline 31 Mar 2026 | Viewed by 42 | Submission Open

Keywords: electrocatalysis; fuel cell catalysts; electrochemical carbon dioxide reduction; hydrogen evolution reaction; oxygen evolution reaction; water splitting

(This special issue belongs to the Section Electrochemistry)

Green Extraction, Characterization, and Biological Potential of Natural Phytochemicals

edited by Gustavo Castillo-Herrera

submission deadline 31 Mar 2026 | Viewed by 36 | Submission Open

Keywords: green extraction; chemical characterization; phytochemicals; bioactivity

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

Advancements in Electrochemistry and Corrosion Protection

edited by Houyi Ma

submission deadline 31 Mar 2026 | Viewed by 32 | Submission Open

Keywords: corrosion electrochemistry; materials degradation; corrosion protection; chemical conversion layers; coatings; inhibitors; electrode corrosion

(This special issue belongs to the Section Electrochemistry)

Study of Quadruplex Nucleic Acids and Beyond

edited by

Yan Xu

submission deadline 1 Apr 2026 | Viewed by 244 | Submission Open

Keywords: G-quadruplexes (G4s); i-Motifs; Z-DNA/RNA; triplex DNA; cruciforms; hairpins; chemical probes; nanomaterials; biosensors

Expanding Natural Product Collections: From Diverse Biological and Food Sources to Innovative Structures

edited by

Francesca Ghirga

and

Silvia Cammarone

submission deadline 1 Apr 2026 | Viewed by 179 | Submission Open

Keywords: natural product collections; targeted and untargeted metabolomics; synthetic and semi-synthetic derivatives; bioassay-guided isolation; structure elucidation; cheminformatics in natural product research; natural product-inspired drug and nutraceutical discovery; food and medicinal plant chemistry

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

Liquid Crystals, 3rd Edition

edited by

Viorel Circu

Doina Manaila-Maximean

and

Valery A. Loiko

submission deadline 1 Apr 2026 | 1 articles | Viewed by 151 | Submission Open

Keywords: liquid crystals; ionic liquid crystals; metallomesogens; nanoparticles; liquid crystal composites; polymer liquid crystals; lyotropic liquid crystals

(This special issue belongs to the Section Materials Chemistry)

Chemical Compounds or Agents Against Parasites, Bacteria, and Neglected Tropical Diseases

edited by

Annette Kaiser

submission deadline 1 Apr 2026 | Viewed by 128 | Submission Open

Keywords: chemical compounds; resistance; NTDs; targets

(This special issue belongs to the Section Medicinal Chemistry)

Non-Thermal Processing Technologies in Food Science: From Stabilization to Bioactive Analysis

edited by

Chenguang Zhou

Zhen Yang

and

Siyao Liu

submission deadline 1 Apr 2026 | Viewed by 78 | Submission Open

Keywords: non-thermal processing; food stabilization; bioactive compounds; high-pressure processing; pulsed electric fields; cold plasma

(This special issue belongs to the Section Food Chemistry)

Chemical Composition and Bioactivities of Essential Oils, 3rd Edition

edited by

Manuela Labbozzetta

submission deadline 10 Apr 2026 | 6 articles | Viewed by 6793 | Submission Open

Keywords: bioactive natural compounds; essential oils; chemical characterization; the essential oil mechanism of action; biological activities in vitro and in vivo; antitumor; antimicrobials; antioxidant; EO delivery strategies

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

Challenges in Green Analytical Chemistry

edited by

Slobodan Gadzuric

and Tatjana Trtić-Petrović

submission deadline 10 Apr 2026 | Viewed by 258 | Submission Open

Keywords: green analytical chemistry; sustainable analytical methods; eco-friendly sample preparation; miniaturized techniques; solvent reduction; greenness assessment tools; waste minimization; renewable analytical materials; energy-efficient analysis; green metrics in chemistry

Design, Synthesis, and Biological Evaluation of Novel Anti-Tuberculosis Drugs

edited by

Hendra Gunosewoyo

submission deadline 15 Apr 2026 | Viewed by 65 | Submission Open

Keywords: anti-tubercular agents; drug design; drug repurposing; medicinal chemistry; structure– activity relationship (SAR); Mycobacterium tuberculosis; synthesis; minimum inhibitory concentration (MIC); cytotoxicity

(This special issue belongs to the Section Medicinal Chemistry)

Novel Graphene Materials: Synthesis, Characterization and Applications

edited by Stefano Veronesi and

Ylea Vlamidis

submission deadline 15 Apr 2026 | Viewed by 51 | Submission Open

Keywords: graphene; epitaxial graphene; 2D materials; energy storage; catalysis; hydrogen storage

(This special issue belongs to the Section Materials Chemistry)

Catalysis in Organic Chemistry: A Themed Issue Dedicated to Professor Johannes G. de Vries

edited by Sergey Tin

submission deadline 16 Apr 2026 | Viewed by 113 | Submission Open

Keywords: homogeneous catalysis; enantioselective catalysis; transformation of renewable resources; industrial catalysis

(This special issue belongs to the Section Organic Chemistry)

Bio-Based Polymers for Sustainable Future

edited by

Marija Gorjanc

submission deadline 30 Apr 2026 | 9 articles | Viewed by 13014 | Submission Open

Keywords: bio-based polymers; bio-based composites; bio-based textiles; bio-based polymers for 3D printing; bio-based packaging; functional bio-based polymers; recyclability and biodegradation of bio-based polymers; LCA of bio-based polymers; application of bio-based polymers

(This special issue belongs to the Section Materials Chemistry)

Bioactive Compounds from Roots, Stems, Leaves, Flowers, Fruits, and Seeds: 2nd Edition

edited by

Sang-Jip Nam

and

Eun Kyoung Seo

submission deadline 30 Apr 2026 | 8 articles | Viewed by 11602 | Submission Open

Keywords: bioactive compounds; roots; stems; leaves; flowers; fruits; and seeds; natural products; natural medicine; medicinal plants

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

Advances in Coordination Chemistry, 3rd Edition

edited by Juan Niclós-Gutiérrez and

Miquel Barceló-Oliver

submission deadline 30 Apr 2026 | 7 articles | Viewed by 11138 | Submission Open

Keywords: synthesis strategies for novel coordination compounds; coordination compounds with tailor-made ligands for specific applications; coordination compounds with multitopic ligands; single-crystal XRD structures and dimensionality of metal complexes; metal– organic frameworks and their applications; molecular recognition in mixed ligand– metal complexes at the molecular and/or supra-molecular levels; model metal complexes from the bioinorganic frontier of biological chemistry; DFT and other theoretical approaches for inter-ligand interactions in metal complexes

(This special issue belongs to the Section Inorganic Chemistry)

Synthesis, Characterization and Application of Polymer-Based Materials, 2nd Edition

edited by

Nadya Vasileva Dencheva

and

Zlatan Denchev

submission deadline 30 Apr 2026 | 9 articles | Viewed by 10690 | Submission Open

Keywords: synthetic; natural; and sustainable polymer-based materials; polymer composites; polymer hybrids; multifunctional and smart polymer materials; structure– properties relationship in polymer systems; advanced characterization of polymer multiphase systems; polymer synthesis and reactive processing; polymer-based supports for bioactive molecules; applications of polymer-based materials; hydrophilic polymer systems

(This special issue belongs to the Section Materials Chemistry)

Recent Advances in Chromatography for Pharmaceutical Analysis

edited by

Yannis Dotsikas

submission deadline 30 Apr 2026 | 8 articles | Viewed by 10241 | Submission Open

Keywords: drug analysis of chemical and biological drugs; bioanalysis; natural products analysis; green chemistry; experimental design; artificial intelligence; metabolomics; stationary phase

(This special issue belongs to the Section Analytical Chemistry)

Advances in Phenolic Based Complexes

edited by

Kiril B. Gavazov

submission deadline 30 Apr 2026 | 6 articles | Viewed by 8585 | Submission Open

Keywords: phenolic compounds; complexes; structure; properties; applications; analysis

Exploring Analytical Techniques in Pharmaceutical and Biomedical Analysis

edited by

Fengqing Yang

and

Yuelin Song

submission deadline 30 Apr 2026 | 6 articles | Viewed by 7825 | Submission Open

Keywords: pharmaceutical analysis; biomedical analysis; chromatographic analysis; spectroscopic analysis; mass spectrometry analysis; capillary electrophoresis; electrochemical analysis

(This special issue belongs to the Section Medicinal Chemistry)

Natural Products: Extraction, Analysis and Biological Activities

edited by

Dorota Wianowska

and Łukasz Paprotny

submission deadline 30 Apr 2026 | 5 articles | Viewed by 7240 | 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)

Therapeutic Agents for Neurodegenerative Disorders—2nd Edition

edited by

Andrea Kwakowsky

submission deadline 30 Apr 2026 | 4 articles | Viewed by 7180 | Submission Open

Keywords: beta amyloid; tau; alpha-synuclein; huntingtin; autophagy; neuromodulators; neurotrophins; natural compounds; neuroinflammation; vascular dysfunction; neuronal death; drug development; therapeutic biomarkers; blood– brain barrier; small-molecule therapeutics; theranostics

(This special issue belongs to the Section Medicinal Chemistry)

Materials for Emerging Electrochemical Devices—2nd Edition

edited by

Maria Manuela Silva

submission deadline 30 Apr 2026 | 4 articles | Viewed by 6688 | Submission Open

Keywords: solid-state devices; batteries; electrochromic devices; smart windows; electrochemical devices

(This special issue belongs to the Section Materials Chemistry)

Volatile Natural Products: Extraction, Characterization and Application

edited by

Hsin-Chun Chen

submission deadline 30 Apr 2026 | 4 articles | Viewed by 5150 | Submission Open

Keywords: volatile components; aroma; essential oil; extraction methods; gas chromatography; gas chromatography– mass spectrometry; natural products

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

Green and Environmentally Friendly Visible-Light- and Transition Metal-Catalyzed Synthesis

edited by

Bogdan Štefane

submission deadline 30 Apr 2026 | 2 articles | Viewed by 4732 | Submission Open

Keywords: green synthesis; sustainable chemistry; transition metal catalysis; light induced transformations; photoredox catalysis; organic synthesis

(This special issue belongs to the Section Organic Chemistry)

The Anticancer Drugs: A New Perspective

edited by

Tânia S. Morais

and

Nuno Xavier

submission deadline 30 Apr 2026 | 3 articles | Viewed by 4591 | Submission Open

Keywords: anticancer therapy; targeted therapy; drug design; drug discovery; drug synthesis; nanotechnology

(This special issue belongs to the Section Medicinal Chemistry)

Synthesis and Biological Evaluation of Coordination Compounds

edited by

Adenilson Oliveira dos Santos

, Francisco Ferreira De Sousa and

Fernando Mendes

submission deadline 30 Apr 2026 | 4 articles | Viewed by 4520 | Submission Open

Keywords: synthetic chemistry; coordination chemistry; biological activity; complexes; drug design; molecular targeting; metal– ligand interactions

(This special issue belongs to the Section Inorganic Chemistry)

Recent Advances in Porous Materials, 2nd Edition

edited by

Xinhua Qi

submission deadline 30 Apr 2026 | 4 articles | Viewed by 4113 | Submission Open

Keywords: porous carbon; adsorption; catalysis; supercapacitor; biomass; energy storage; zeolite; fuel cell; molecular sieves; metal– organic frameworks; porous metal oxide; mesoporous silicon; macroporous resin; aerogel; separation; porous composites; covalent organic frameworks

(This special issue belongs to the Section Materials Chemistry)

Exploring Bioactive Compounds in Foods and Nutrients for Human Health

edited by

Denise Mafra

and

Livia Alvarenga

submission deadline 30 Apr 2026 | 3 articles | Viewed by 4073 | Submission Open

Keywords: chronic non-communicable diseases; bioactive compounds; nutrients; human health

Advances in Computational Spectroscopy, 2nd Edition

edited by

Magdalena Sałdyka

and Małgorzata Biczysko

submission deadline 30 Apr 2026 | 4 articles | Viewed by 3876 | Submission Open

Keywords: spectroscopy; computational spectroscopy in inorganic chemistry; computational spectroscopy in bioinorganic chemistry; computational spectroscopy in biological systems; molecular and supramolecular structure; crystal structure; molecular modelling; time-independent and time-dependent approaches; molecular dynamics; density functional theory (DFT); time-dependent DFT (TD-DFT); coupled cluster (CC) approaches and composite schemes; bottom-up and top-down semi-experimental approaches

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

Recent Advances in Transition Metal Catalysis, 2nd Edition

edited by Dingyi Wang

submission deadline 30 Apr 2026 | 3 articles | Viewed by 3795 | Submission Open

Keywords: transition metal catalysis; photocatalysis; electrosynthesis; organic synthesis; asymmetric synthesis; C-H functionalization; C-C functionalization; C-X functionalization

(This special issue belongs to the Section Organic Chemistry)

Catalytic Materials for Energy and Environment: Preparation, Properties and Applications

edited by

Ana Paula Da Costa Ribeiro

and Yanfei Xu

submission deadline 30 Apr 2026 | 1 articles | Viewed by 3253 | Submission Open

Keywords: biomass conversion; CO2 hydrogenation; plastic degradation; alkane dehydrogenation; syngas conversion; methane reforming; catalysts for energy and environment; catalytic mechanism

(This special issue belongs to the Section Materials Chemistry)

Chemical Analysis of Pollutant in the Environment

edited by

Ewa Szpyrka

and

Mohammad Russel

submission deadline 30 Apr 2026 | 4 articles | Viewed by 2982 | Submission Open

Keywords: inorganic and organic pollutants; persistent organic pollutants; heavy metals; nano- and microplastics; chemical methods; instrumental methods; validation

(This special issue belongs to the Section Green Chemistry)

Advance in Radiochemistry, 2nd Edition

edited by

Chang-Tong Yang

submission deadline 30 Apr 2026 | 3 articles | Viewed by 2900 | Submission Open

Keywords: radiochemistry; radionuclide (radioisotopes); radiolabeling; radiopharmaceutical (radiotracer); nuclear medicine; theranostics (diagnostics and therapeutics); molecular imaging

(This special issue belongs to the Section Medicinal Chemistry)

Innovative Approaches to Sustainable Wastewater Treatment—Recent Developments in Hazardous Pollutants Removal

edited by

Anna Wołowicz

and

Monika Wawrzkiewicz

submission deadline 30 Apr 2026 | 3 articles | Viewed by 2788 | Submission Open

Keywords: wastewater treatment; industrial wastewater; physical methods; chemical methods; biological methods; emerging micropollution; dyes; heavy metals; removal; (bio)sorbent; ion exchange resin

(This special issue belongs to the Section Green Chemistry)

Advanced Functional Membrane Materials: Fabrication and Applications

edited by

Heng Mao

submission deadline 30 Apr 2026 | 1 articles | Viewed by 2710 | Submission Open

Keywords: functional membrane material; nanochemistry; polymeric synthesis; molecular design; synthesis method; material processing; catalysis and separation

(This special issue belongs to the Section Applied Chemistry)

Displaying special issue 651-700 on page 14 of 22.

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