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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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Lignin: New Insights in Chemistry

edited by

Chiaki Ogino

submission deadline 31 Oct 2025 | 1 articles | Viewed by 825 | Submission Open

Keywords: lignin valorization; catalytic depolymerization; enzymatic lignin transformation; thermochemical processes; lignin-derived fine chemicals; synthetic biology in lignin research; circular bioeconomy

(This special issue belongs to the Section Green Chemistry)

Novel Heterocyclic Compounds: Synthesis and Applications

edited by

Mario Orodnez

and José Luis Viveros-Ceballos

submission deadline 31 Oct 2025 | 1 articles | Viewed by 824 | Submission Open

Keywords: heterocyclic compounds; synthetic methodologies; medicinal chemistry; bioactive molecules; pharmaceutical applications; catalysis in heterocycle synthesis; green chemistry approaches; structure– activity relationships (SARs); organic synthesis; agrochemical applications

(This special issue belongs to the Section Organic Chemistry)

Supramolecular Host/Guest Compounds and Their Prospects for Multifunctional Materials

edited by Angela Danil De Namor and Nawal Al Hakawati

submission deadline 31 Oct 2025 | 1 articles | Viewed by 818 | Submission Open

Keywords: supramolecular chemistry; host-guest chemistry; macrocycles and cages; self-assembly; supramolecular materials

(This special issue belongs to the Section Macromolecular Chemistry)

Advance in Radiochemistry, 2nd Edition

edited by

Chang-Tong Yang

submission deadline 31 Oct 2025 | 2 articles | Viewed by 788 | 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)

Enantioselective Synthesis, Enantiomeric Separations and Chiral Recognition: 3rd Edition

edited by

Carla Fernandes

Maria Elizabeth Tiritan

and

Madalena Pinto

submission deadline 31 Oct 2025 | 1 articles | Viewed by 758 | Submission Open

Keywords: enantioselective synthesis; enantioseparation; chiral analyses; chiral recognition; chiral sensors

Innovative Anticancer Compounds and Therapeutic Strategies

edited by

Mateusz Kciuk

and Beata Marciniak

submission deadline 31 Oct 2025 | 2 articles | Viewed by 757 | Submission Open

Keywords: chemical biology; cancer therapeutics; natural compounds; small molecule drug discovery; targeted therapy; high-throughput screening; structure-based drug design; translational research

(This special issue belongs to the Section Medicinal Chemistry)

Metal-Based Molecular Photosensitizers: From Design to Applications

edited by

Yao Sun

submission deadline 31 Oct 2025 | 1 articles | Viewed by 729 | Submission Open

Keywords: photosensitizers; molecular metal complexes; metal-organic complexes; metal-organic frameworks; photodynamic therapy

(This special issue belongs to the Section Organometallic Chemistry)

Back to Nature: Pharmacological Activities of Phytochemicals Isolated from Medicinal Plants

edited by

Arik Dahan

and Ludmila Yarmolinsky

submission deadline 31 Oct 2025 | 1 articles | Viewed by 692 | Submission Open

Keywords: medicinal plant; pharmacological activity; phytochemical; disease; drug; therapeutic; polyphenol; terpene; carotenoid; saponin; alkaloid; thiophene; sugar; fatty oil; resin; phytosterol; protein; peptide; anti-inflammatory; antidiabetic; neuroprotective; anticancer; antioxidative; antimicrobial; antiviral; antifungal

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

Phenolic and Polyphenolic Compounds: Chemistry, Bioactivity and Applications

edited by Krystian Marszalek and

Justyna Szczepańska-Stolarczyk

submission deadline 31 Oct 2025 | Viewed by 667 | Submission Open

Keywords: fruits and vegetables; functional food; polyphenols; antioxidants; food chemistry and food technology; chromatography; bioavailability and bioaccessibility; innovative and non-conventional techniques

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

Innovative Marine Molecules: Chemistry, Biology and Analysis (Volume II)

edited by

Sérgio Sousa

Ana Gomes

and

Ana P. Carvalho

submission deadline 31 Oct 2025 | Viewed by 652 | Submission Open

Keywords: food (product); marine molecules; chemical structure; isolation and purification; characterization; bioactivity; mechanism of action; analysis methods

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

Exploration and Characterization of Antioxidants from Marine Sources: Isolation, Analysis, and Applications

edited by

Joana Silva

submission deadline 31 Oct 2025 | Viewed by 641 | Submission Open

Keywords: isolation and chemical characterization; structure– activity relationship; marine-derived antioxidants; oxidative stress; in vitro and in vivo models; antioxidant activity; photoprotective activity; antitumural activity; neuroprotection activity; bioavailability and bioaccessibility

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

Biological Activity of Metal Complexes: Design and Characterization Strategies

edited by

Enrique González-Vergara

and

María Eugenia Castro

submission deadline 31 Oct 2025 | 1 articles | Viewed by 628 | Submission Open

Keywords: metal complexes; biological activity; metallodrugs; anticancer: antibacterial; antiviral; antiparasitic: delivery methods; biophysical characterization; DFT; docking

(This special issue belongs to the Section Inorganic Chemistry)

Design and Preparation of New Metal Catalysts for Functional Organic Compounds Synthesis

edited by

Giorgio Facchetti

submission deadline 31 Oct 2025 | 1 articles | Viewed by 591 | Submission Open

Keywords: transition metal complexes; hybrid catalysts; nanocatalysts; single-atom catalysts; sustainable organic synthesis; natural products

(This special issue belongs to the Section Organometallic Chemistry)

Recent Advances in Chromatography for Pharmaceutical Analysis

edited by

Yannis Dotsikas

submission deadline 31 Oct 2025 | 1 articles | Viewed by 547 | 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 Metallocene Chemistry

edited by

Karlheinz Sünkel

submission deadline 31 Oct 2025 | 1 articles | Viewed by 539 | Submission Open

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

(This special issue belongs to the Section Organometallic Chemistry)

Redox-Active Molecules as Key Players for Inflammatory Diseases

edited by Ange Mouithys-Mickalad

submission deadline 31 Oct 2025 | Viewed by 533 | 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)

Photocatalytic Generation of Heterocycles

edited by Zuxiao Zhang and

Gianfranco Favi

submission deadline 31 Oct 2025 | Viewed by 517 | Submission Open

Keywords: photocatalytic; cyclization; heterocycles

(This special issue belongs to the Section Organic Chemistry)

Physicochemical Properties of Innovative Food Products During Processing

edited by

Marta Igual Ramo

and

Irene Peñaranda

submission deadline 31 Oct 2025 | 1 articles | Viewed by 500 | Submission Open

Keywords: physicochemical properties; innovative foods; food processing; quality and stability; functional foods; safety and shelf life; sensory analysis; texture and rheology; bioactive compounds; emerging food technologies; food sustainability; design of food structures

(This special issue belongs to the Section Food Chemistry)

Functional Coordination Compounds: Design, Synthesis and Applications

edited by Ji-Dong Leng and Wei-Quan Lin

submission deadline 31 Oct 2025 | 1 articles | Viewed by 421 | Submission Open

Keywords: coordination compounds; magnetic materials; luminescence; nonlinear optical; stimuli-responsive; catalytic; sensing

(This special issue belongs to the Section Applied Chemistry)

Young Talents in Medicinal Chemistry

edited by

Arduino A. Mangoni

and

Chiara Brullo

submission deadline 31 Oct 2025 | Viewed by 411 | Submission Open

Keywords: medicinal chemistry; cancer; drug discovery; drug synthesis; pharmacology; toxicology

(This special issue belongs to the Section Medicinal Chemistry)

Therapeutic Candidates of Inflammation in Chemical Biology

edited by

Sadiq Umar

submission deadline 31 Oct 2025 | Viewed by 406 | Submission Open

Keywords: inflammation; inflammatory-based diseases; immunity; oxidative stress; chemical biology

(This special issue belongs to the Section Chemical Biology)

Wine Electrochemistry: Science, Technology and Industry

edited by

César Augusto Correia de Sequeira

and

Biljana Šljukić

submission deadline 31 Oct 2025 | Viewed by 340 | Submission Open

Keywords: electrochemical sensors; biosensors; wine; ISFETS; CHEMFETs; electronic tongues; amperometric enzymatic biosensors; phenolic antioxidants electrochemistry; oxidation mechanisms of wines; flow-through electrochemistry; electrochemistry of wine wastewater

(This special issue belongs to the Section Electrochemistry)

Novel Catalysts for Asymmetric Synthesis

edited by

Renata Siedlecka

Mariola Zielińska-Błajet

and

Alejandro Baeza Carratalá

submission deadline 31 Oct 2025 | Viewed by 307 | Submission Open

Keywords: chiral ligands; organometallic complexes; organocatalysts; enantioselectivity; asymmetric induction; catalysis

(This special issue belongs to the Section Organic Chemistry)

Conjugated Polymer-Based Materials: Synthesis, Characterization, and Applications

edited by

Bruno Schmaltz

and Nicolas Berton

submission deadline 31 Oct 2025 | Viewed by 301 | Submission Open

Keywords: conjugated polymers; synthesis; characterization; functional π -conjugated materials; conducting materials; organic electronics; organic electrode materials

(This special issue belongs to the Section Materials Chemistry)

Application of MOFs Materials in Advanced Oxidation Processes

edited by

Xiaodong Zhang

submission deadline 31 Oct 2025 | Viewed by 221 | Submission Open

Keywords: MOFs; AOPs; VOCs; emerging pollutants; synthesis methods; evaluation techniques

(This special issue belongs to the Section Green Chemistry)

Advances in Modeling and Simulation of Biomolecules

edited by

Haiyang Zhang

submission deadline 31 Oct 2025 | Viewed by 214 | Submission Open

Keywords: molecular dynamics simulations; model parameterization; protein structure and function; protein– ligand interactions; computer-aided drug design; biomolecular association and assembly

(This special issue belongs to the Section Physical Chemistry)

C-H Bond Functionalization of Heterocyclic Compounds

edited by

Dong Wang

submission deadline 31 Oct 2025 | Viewed by 212 | Submission Open

Keywords: heterocycles; C-H activation; transition metal catalysis; site-selectivity; sustainable synthesis; photoredox chemistry; electrochemical functionalization; biologically active molecules

(This special issue belongs to the Section Organic Chemistry)

Research Advances in Li-Ion Battery Materials: Present and Future

edited by

Li Du

submission deadline 31 Oct 2025 | Viewed by 202 | Submission Open

Keywords: lithium-ion battery; anode materials; cathode materials; characterization

(This special issue belongs to the Section Applied Chemistry)

Microwave- and Ultrasound-Assisted Reactions in Organic Chemistry

edited by

Gheorghita Zbancioc

and

Costel Moldoveanu

submission deadline 31 Oct 2025 | Viewed by 200 | Submission Open

Keywords: microwave- and ultrasound-assisted; synthetic organic chemistry; unconventional methods; biologically active compounds

(This special issue belongs to the Section Green Chemistry)

Electrochemical Biosensors: From Design to Application, 2nd Edition

edited by

Jiao Zhai

and

Yanwei Jia

submission deadline 31 Oct 2025 | Viewed by 199 | Submission Open

Keywords: electrochemical sensor; bioanalysis; pathogen detection; healthcare monitoring; food detection

(This special issue belongs to the Section Electrochemistry)

Synthesis, Bioactivity and Structure–Activity Relationship of Natural Products and Their Derivatives

edited by Jelena R. Đorović Jovanović and

Jelena S. Katanic Stankovic

submission deadline 31 Oct 2025 | Viewed by 189 | Submission Open

Keywords: natural products; structure– activity relationship (SAR); semi-synthetic derivatives; bioactivity; drug discovery; therapeutic potential; pharmaceutical innovation; bioactive compound modification

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

Nanomaterials for the Detection of Biomolecules

edited by

Marcin Godzierz

Krystian Mistewicz

and Rene Pfeifer

submission deadline 31 Oct 2025 | Viewed by 184 | Submission Open

Keywords: nanomaterials; electrochemistry; biological sensors; gas sensors; synthesis; molecule detection

(This special issue belongs to the Section Analytical Chemistry)

Polymeric Systems Loaded with Natural Bioactive Compounds, 2nd Edition

edited by

Marcel Popa

and

Cǎtǎlina Anişoara Peptu

submission deadline 31 Oct 2025 | Viewed by 176 | Submission Open

Keywords: polymer– natural drug systems; polyphenols; polymer-drug conjugates; biomaterials; drug delivery; natural bioactive compounds; active targeting; omega 3 fatty acids; carotenoids; vitamins

(This special issue belongs to the Section Materials Chemistry)

Chemical Analysis of Organic Contaminants and Microplastics

edited by

João Pinto da Costa

and

Teresa A. P. Rocha-Santos

submission deadline 31 Oct 2025 | 1 articles | Viewed by 157 | Submission Open

Keywords: environment and food; instrumentation; plastic– organic contaminants interactions; life-cycle assessment; (eco)toxicity

(This special issue belongs to the Section Analytical Chemistry)

Bioproducts for Health, 4th Edition

edited by

María Emilia Brassesco

Ezequiel Coscueta

and

Manuela Pintado

submission deadline 31 Oct 2025 | Viewed by 150 | Submission Open

Keywords: bioactive compounds; health applications; natural sources; purification; downstream processing; sustainability

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

Essential Oils: Chemical Composition, Bioactive, and Application

edited by

Maria Carla Marcotullio

and Nai-Wen Tsao

submission deadline 31 Oct 2025 | Viewed by 148 | Submission Open

Keywords: essential oils; chemical constituents; biological activities; extraction methods; analytical chemistry; therapeutic effects; antimicrobial activity; drug delivery

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

Novel Nanomaterials: Sensing Development and Applications

edited by

Peter Feng

and

Andrew F. Zhou

submission deadline 31 Oct 2025 | Viewed by 143 | Submission Open

Keywords: biosensor; nanomaterials; material design; nanocomposite; sensor; sensor applications

(This special issue belongs to the Section Materials Chemistry)

Catalytic Green Reductions and Oxidations, 2nd Edition

edited by

Zhanhui Yang

submission deadline 31 Oct 2025 | Viewed by 140 | Submission Open

Keywords: green chemistry; redox reactions; organocatalysis; metal catalysis; heterocatalysis; homocatalysis; photocatalysis; electrocatalysis

(This special issue belongs to the Section Organic Chemistry)

Advanced Approaches for Analysis of Food Contaminants and Residues

edited by

Emmanouil Tsochatzis

submission deadline 31 Oct 2025 | Viewed by 135 | Submission Open

Keywords: allergens in foods; antibiotics in food products; endocrine-disrupting substances; food additives; food contact materials; mycotoxins; pesticides; polyaromatic hydrocarbons (PAH); process-induced changes and oxidation products

(This special issue belongs to the Section Analytical Chemistry)

Aromatic Heterocyclic Compounds: Synthesis, Reactivity and Applications

edited by

Gilbert Kirsch

submission deadline 31 Oct 2025 | Viewed by 133 | Submission Open

Keywords: aromatic heterocycles with one heteroatom; aromatic heterocycles with two or more heteroatoms; condensed compounds containing an aromatic heterocycle; direct synthesis; synthesis using electrophilic or nucleophilic reactions; metalation and reactivity; applications of aromatic heterocyclic compounds

(This special issue belongs to the Section Organic Chemistry)

Chemical Design of Nanocomposite Materials for Enhanced Electrochemical Performance

edited by

Panpan Dong

and Xingxing Jiao

submission deadline 31 Oct 2025 | Viewed by 123 | Submission Open

Keywords: nanocomposite materials; electrochemical properties; lithium batteries; solid-state electrolytes; interfacial electrochemistry; ionic conductivity; electrode design; theoretical calculations

(This special issue belongs to the Section Electrochemistry)

New Insights into High Performance Carbon-Based Electrode Materials

edited by

Yongpeng Cui

and

Chong Xu

submission deadline 31 Oct 2025 | Viewed by 122 | Submission Open

Keywords: carbon materials; energy storage and conversion; battery; supercapacitor; electrode material

(This special issue belongs to the Section Electrochemistry)

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

edited by

Anna Wołowicz

and

Monika Wawrzkiewicz

submission deadline 31 Oct 2025 | Viewed by 122 | 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)

Advances in Porous Organic Materials: Syntheses, Structures and Applications

edited by Tianqiong Ma, Wankai An and

Ying-Wei Yang

submission deadline 31 Oct 2025 | Viewed by 120 | Submission Open

Keywords: porous organic materials; porous organic polymers (POPs); covalent organic frameworks (COFs); conjugated microporous polymers (CMPs); porous aromatic frameworks (PAFs); polymers of intrinsic microporosity (PIMs); hyper-cross-inked polymers (HCPs); porous organic cages

(This special issue belongs to the Section Materials Chemistry)

Photocatalysis for Organic Pollutants Degradation

edited by

Wanhong Ma

submission deadline 31 Oct 2025 | Viewed by 120 | Submission Open

Keywords: photocatalytic degradation of organic pollutants in waters; design and preparation of photocatalyst; homo- and heterogeneous photo-catalyzed process; intermediate fragments and intermediate organic pollutants; reactive oxygen species (ROS)

(This special issue belongs to the Section Photochemistry)

Extraction, Chromatography, and Mass Spectrometry Analysis of Food and Plant Biomolecules

edited by

Jorge Pereira

and

Natalia Casado Navas

submission deadline 31 Oct 2025 | Viewed by 111 | Submission Open

Keywords: liquid chromatography; gas chromatography; sample preparation; extraction; supercritical fluid extraction; solid-phase extraction; liquid– liquid extraction

(This special issue belongs to the Section Analytical Chemistry)

Heterocyclic Compounds: Synthesis, Characterization and Biological Evaluation

edited by Hong Dai

submission deadline 31 Oct 2025 | Viewed by 110 | Submission Open

Keywords: heterocyclic compounds; synthesis; biological activity

(This special issue belongs to the Section Organic Chemistry)

Research on Plant-Based Polyphenols: Extraction, Purification and Application

edited by

Thomas Schnabel

and

Thomas Sepperer

submission deadline 31 Oct 2025 | Viewed by 108 | Submission Open

Keywords: condensed tannin; biopolymers; extraction; circular economy; deep eutectic solvent; hydrolysable tannin; residue valorization

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

Advanced Functional Membrane Materials: Fabrication and Applications

edited by

Heng Mao

submission deadline 31 Oct 2025 | Viewed by 100 | 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)

Structure Characterization of Materials in Chemical Engineering

edited by

Qingming Huang

submission deadline 31 Oct 2025 | Viewed by 95 | Submission Open

Keywords: chemical engineering; microstructure; material properties; characterization; innovative technology

(This special issue belongs to the Section Materials Chemistry)

Displaying special issue 351-400 on page 8 of 18.

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