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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 Biopolymer-Based Nanocomposites: From Sustainable Design to Environmental and Biomedical Applications

edited by Şükrü Gökhan Elçi and

Aylin Altınışık Tağaç

submission deadline 31 Oct 2026 | 1 articles | Viewed by 564 | Submission Open

Keywords: biopolymer nanocomposites; natural fiber composites; chitosan-based materials; cellulose nanostructures; surface functionalization; adsorption; environmental remediation; green synthesis; hybrid nanocomposites; sustainable materials

(This special issue belongs to the Section Nanochemistry)

Next-Generation Antibacterial Nanoparticles: Green Synthesis, Functional Design and Microbial Control

edited by

Paulina Laura Páez

and

Silvana Alborés

submission deadline 31 Oct 2026 | 1 articles | Viewed by 548 | Submission Open

Keywords: biogenic nanoparticles; antimicrobial resistance; nanomaterials; antibiofilm; nano–bio interactions; microbial nanotechnology; nanobiotechnology

(This special issue belongs to the Section Nanochemistry)

Bioactive Phenolic and Polyphenolic Compounds, 4th Edition

edited by

Cristina Forzato

and

Federico Berti

submission deadline 31 Oct 2026 | Viewed by 465 | Submission Open

Keywords: food chemistry; natural products; antioxidants; polyphenols; chromatography; spectroscopy; mass spectrometry; extraction; biological activity; sensors

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

Research on Photocatalytic Materials and Mechanisms

edited by

Yanrong Zhang

submission deadline 31 Oct 2026 | 1 articles | Viewed by 459 | Submission Open

Keywords: photocatalysis; semiconductor photocatalysts; heterojunctions; CO2 photoreduction; water splitting; photocatalytic synthesis; environmental remediation; charge carrier dynamics; DFT calculations; visible-light photocatalysis; reaction mechanisms

(This special issue belongs to the Section Photochemistry)

Synthesis of Biologically Active Steroids

edited by

Vladimir N. Zhabinskii

submission deadline 31 Oct 2026 | Viewed by 458 | Submission Open

Keywords: synthesis; mechanisms; steroids; chemical structure; activity; cytotoxicity

(This special issue belongs to the Section Medicinal Chemistry)

Analytical Chemistry: A Themed Issue in Honor of the Contributions of Professor Victoria Samanidou

edited by

Abuzar Kabir

and

Irene Panderi

submission deadline 31 Oct 2026 | Viewed by 446 | Submission Open

Keywords: analytical chemistry; separation science; sorbent materials; molecular recognition; sorptive extraction; microextraction; chromatography; hyphenated techniques; LC-MS/HRMS; green analytical chemistry; green sample preparation; metric tools

(This special issue belongs to the Section Analytical Chemistry)

Chemical Identification and Biological Activity of Plant Phenolic Compounds

edited by Oscar Forero-Doria and

Christina Mitsi

submission deadline 31 Oct 2026 | Viewed by 432 | Submission Open

Keywords: plant phenolics; separation science; spectroscopy; hyphenated techniques; metabolomics; structure elucidation; bioactivity; quality control

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

Recent Advances in Radical Chemistry

edited by

Jia-Rong Chen

and Ying Cheng

submission deadline 31 Oct 2026 | Viewed by 425 | Submission Open

Keywords: radical chemistry; radical cross-coupling; photocatalysis; electrochemical synthesis; transition metal catalysis

(This special issue belongs to the Section Organic Chemistry)

Green Extraction, Characterization, and Biological Potential of Natural Phytochemicals

edited by Gustavo Castillo-Herrera

submission deadline 31 Oct 2026 | Viewed by 417 | Submission Open

Keywords: green extraction; chemical characterization; phytochemicals; bioactivity

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

Computational Catalysis: Mechanisms and Design

edited by

Xinglong Zhang

submission deadline 31 Oct 2026 | Viewed by 393 | Submission Open

Keywords: computational catalysis; reaction mechanisms; catalyst design; density functional theory; structure–activity relationships; homogeneous catalysis; heterogeneous catalysis; machine learning

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

Photobiology: Bioactive Compounds of Plants in Response to Light Conditions

edited by

Marina DellaGreca

and

Maria Michela Salvatore

submission deadline 31 Oct 2026 | Viewed by 393 | Submission Open

Keywords: light-dependent reactions; photoprotective substances; bioactive compounds; natural product engineering tool; response to light conditions

(This special issue belongs to the Section Photochemistry)

Featured Review in Wine Chemistry

edited by

Fernando M. Nunes

Fernanda Cosme

and

Luís Filipe-Ribeiro

submission deadline 31 Oct 2026 | Viewed by 373 | Submission Open

Keywords: wine chemistry; review; wine flavors; polyphenols; sensory; analytical techniques

(This special issue belongs to the Section Flavours and Fragrances)

Spectroscopic and Spectrometric Techniques for Structural Analysis, 2nd Edition

edited by

Nives Galić

and

David Klarić

submission deadline 31 Oct 2026 | Viewed by 372 | Submission Open

Keywords: NMR spectroscopy; mass spectrometry; vibrational spectroscopy; UV-Vis spectroscopy; spectrofluorimetry; EPR spectroscopy; structural analysis

(This special issue belongs to the Section Analytical Chemistry)

Material Synthesis and Green Catalysis: Innovations for Sustainable Chemistry

edited by Weiwei Guo and

Lu Lu

submission deadline 31 Oct 2026 | Viewed by 366 | Submission Open

Keywords: sustainable catalysis; renewable energy; materials design; green chemistry; catalysis

(This special issue belongs to the Section Nanochemistry)

Intramolecular Hydrogen Bonds

edited by

Xuefeng Wang

submission deadline 31 Oct 2026 | Viewed by 359 | Submission Open

Keywords: intramolecular hydrogen bonds; intramolecular proton transfer; charge-assisted hydrogen bonding; molecular conformation; supramolecular chemistry

(This special issue belongs to the Section Physical Chemistry)

Anti-Infective, Anti-Inflammatory, and Antiviral Activities of Natural Extracts

edited by

Luciana Scotti

and

Thalisson Amorim De Souza

submission deadline 31 Oct 2026 | Viewed by 350 | Submission Open

Keywords: natural products; natural extracts; bioactive compounds; anti-infective activity; antimicrobial activity; antiviral activity; anti-inflammatory activity

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

Synthesis, Characterization, and Catalytic Applications of Transition Metal Complexes

edited by Daniel Mendoza Espinosa

submission deadline 31 Oct 2026 | Viewed by 344 | Submission Open

Keywords: transition metal complexes; homogeneous catalysis; heterogeneous catalysis; catalytic cycles; organic synthesis; selectivity; efficiency; sustainability

(This special issue belongs to the Section Organometallic Chemistry)

Natural Bioactive Compounds from Fruits, Herbs, and Vegetables as Health Promoters—Second Edition

edited by

Inga Kwiecien

and

Agnieszka Szewczyk

submission deadline 31 Oct 2026 | Viewed by 342 | Submission Open

Keywords: natural products; bioactive effects; structure-bioactivity relations; in vitro methods; in vivo tests; health benefits

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

Exploration of Organometallic Materials and Beyond for Sustainable Energy Applications

edited by

Zhen Zhang

and

Miao Zhang

submission deadline 31 Oct 2026 | Viewed by 341 | Submission Open

Keywords: metal complex; metallated polymer; organometallic materials; non-fullerene acceptor; triplet exciton; charge transfer; organic optoelectronic devices; organic photovoltaics; thick-film solar cell

(This special issue belongs to the Section Materials Chemistry)

Advances in Petroleum Thermodynamics

edited by Carlos Lira-Galeana and

David Reyes-Gonzalez

submission deadline 31 Oct 2026 | Viewed by 340 | Submission Open

Keywords: petroleum thermodynamics; CCUS fluids; properties and phase behavior; experimental and theoretical studies

(This special issue belongs to the Section Physical Chemistry)

Green Chemical and Intelligent Method for Lithium-Ion Battery Recycling

edited by

Muammer Kaya

submission deadline 31 Oct 2026 | Viewed by 339 | Submission Open

Keywords: LIB; e-waste; battery recycling; critical metals; black mass; cathode active material; automated sorting; hydrometallurgy; pyrometallurgy; direct recycling; bioleaching; green chemistry; discharge; dismantle; circular economy; sustainability; closed-loop recycling

(This special issue belongs to the Section Green Chemistry)

Research Progress of New Antimicrobial Drugs—2nd Edition

edited by

Monika Wujec

Urszula Kosikowska

and

Sylwia Andrzejczuk

submission deadline 31 Oct 2026 | Viewed by 331 | Submission Open

Keywords: synthesis of new antimicrobials; bioactive compounds; antimicrobial derivatives; synthetic and natural compounds; pathogens and opportunistic microbes; prevention and treatment; antibiofilm; discovery of antimicrobials

(This special issue belongs to the Section Medicinal Chemistry)

New Insights into Biomass Catalytic Conversion

edited by

Anna Katharina Beine

submission deadline 31 Oct 2026 | Viewed by 327 | Submission Open

Keywords: biomass conversion; catalyst development; mechanistic insights; green chemistry; biorefinery

(This special issue belongs to the Section Green Chemistry)

Cyclodextrin Polymers for Environmental Applications

edited by

Dina Maria Bairrada Murtinho

and

Gianluca Utzeri

submission deadline 31 Oct 2026 | Viewed by 327 | Submission Open

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

(This special issue belongs to the Section Materials Chemistry)

Chemical Mechanisms and Applications of Plasma Technology in Environmental and Biomedical Sciences

edited by

Dehui Xu

submission deadline 31 Oct 2026 | Viewed by 315 | Submission Open

Keywords: cold atmospheric plasma (CAP); environmental pollution; formaldehyde degradation; reactive oxygen species (ROS); reactive nitrogen species (RNS); cancer therapy; wound healing; plasma-induced apoptosis; advanced oxidation

(This special issue belongs to the Section Applied Chemistry)

Recent Advances in Green and Enzymatic Catalysis for Synthesis of Functional Molecules

edited by

Lei Wang

submission deadline 31 Oct 2026 | Viewed by 314 | Submission Open

Keywords: green catalysis; enzymatic synthesis; sustainable chemistry; biocatalysis; functional molecules

(This special issue belongs to the Section Bioorganic Chemistry)

Electrochemical Sensors Modified with Nanomaterials

edited by

Giovanni Neri

and

Simona Crispi

submission deadline 31 Oct 2026 | Viewed by 306 | Submission Open

Keywords: electrochemical sensors; nanomaterials; nanostructured electrodes; carbon-based nanomaterials (graphene, CNTs, CDs); metal and metal oxide nanoparticles; quantum dots; sensor functionalization; biosensing applications; environmental monitoring; advanced analytical technologies

(This special issue belongs to the Section Electrochemistry)

Review Papers on Molecular Dynamics Simulations

edited by Abdulkadir Koçak and

Ricardo L. Mancera

submission deadline 31 Oct 2026 | Viewed by 306 | Submission Open

Keywords: molecular dynamics simulations; free energy calculations; machine learning; neural network potentials; binding free energy; solvation free energy; non-covalent interactions; enhanced sampling

(This special issue belongs to the Section Physical Chemistry)

Infrared Spectroscopy for Molecular Structure and Dynamics

edited by

Jianping Wang

submission deadline 31 Oct 2026 | Viewed by 304 | Submission Open

Keywords: vibrational dynamics; ATR; surface-enhanced IR; 2D IR; SFG; time-resolved IR; molecular dynamics

(This special issue belongs to the Section Molecular Structure)

Green Analytical Methods for Halogen Determination

edited by

Paola A. Mello

and Marcia Foster Mesko

submission deadline 31 Oct 2026 | Viewed by 302 | Submission Open

Keywords: halogens; fluorine; chlorine; bromine; iodine; sample preparation; atomic spectrometry; mass spectrometry; sample preparation; combustion; extraction; ion chromatography; green analytical chemistry; white analytical chemistry

(This special issue belongs to the Section Analytical Chemistry)

Advanced Materials and Chemical Technologies for Solid Waste Resource Recycling

edited by Zehua Ji and Yang Chen

submission deadline 31 Oct 2026 | Viewed by 302 | Submission Open

Keywords: heavy metals; non-ferrous metals; adsorption; separation and purification; coagulation; spent catalyst; recovery; removal; advanced oxidation process; catalysis; battery materials; new energy materials

(This special issue belongs to the Section Green Chemistry)

Natural Extracts: Impact on Metabolic Diseases

edited by

Rosa Martha Pérez-Gutiérrez

and

Alethia Muñiz-Ramirez

submission deadline 31 Oct 2026 | Viewed by 295 | Submission Open

Keywords: natural extracts; secondary metabolites; phytochemical characterization; structure–activity relationships; metabolomics; green synthesis; biopolymers; nanoformulations; drug delivery systems; metabolic diseases

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

Molecular Editing Through Skeletal Transformations

edited by

Gianfranco Favi

submission deadline 31 Oct 2026 | Viewed by 291 | Submission Open

Keywords: skeletal editing; rearrangement; transmutation; ring expansion/contraction; atom swapping; atom deletion/insertion; unimolecular fragment coupling; peripheral editing

(This special issue belongs to the Section Organic Chemistry)

Trends in Biosensors for Biomedical Applications

edited by

Magdalena Stobiecka

and

Katarzyna Ratajczak

submission deadline 31 Oct 2026 | Viewed by 290 | Submission Open

Keywords: optical biosensors (SPR, SERS, fluorescence, colorimetric); electrochemical biosensors; nanogravimetric biosensors; immunosensors; DNA-based biosensors; aptamer-based biosensors; exosomal biomarkers; enzymatic-biosensors

(This special issue belongs to the Section Chemical Biology)

New Research on Novel Photo-/Electrochemical Materials—2nd Edition

edited by

Liangliang Feng

and

Yipu Liu

submission deadline 31 Oct 2026 | Viewed by 288 | Submission Open

Keywords: photo-/electrochemistry; water splitting; fuel cell; zinc air battery; nitrogen reduction reaction; CO2 reduction reaction; photocatalytic degradation; gas sensor

(This special issue belongs to the Section Materials Chemistry)

Rational Design and Optimization of Catalysts for Biomass Valorization

edited by Muhammad Saeed Akhtar and

Eun Duck Park

submission deadline 31 Oct 2026 | Viewed by 285 | Submission Open

Keywords: biomass valorization; catalytic biomass conversion; catalyst design; green chemistry; renewable resources; electrocatalysis; photocatalysis; reaction mechanisms

(This special issue belongs to the Section Green Chemistry)

Featured Reviews on Bioactive Flavour and Fragrance Compounds, 2nd Edition

edited by

Riccardo Petrelli

submission deadline 31 Oct 2026 | Viewed by 282 | Submission Open

Keywords: essential oils; agriculture; food; formulations; crop protection; insecticides; extraction techniques; chemical characterization; biological activity

(This special issue belongs to the Section Flavours and Fragrances)

Natural Products in Biomedical Science: Innovations in Anti-Inflammatory and Antioxidant Therapy

edited by Susan L. Bonnet and Charlene Marais

submission deadline 31 Oct 2026 | Viewed by 277 | Submission Open

Keywords: natural products; medicinal plants; secondary metabolites; drug discovery; anti-inflammatory activity; antioxidant; chronic inflammation; synthesis of anti-inflammatory natural products

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

Advancement of AI in Natural Product Chemistry

edited by

Mustafa Sevindik

and

Njogu M. Kimani

submission deadline 31 Oct 2026 | Viewed by 275 | Submission Open

Keywords: AI; natural products; machine learning; spectral analysis; data-driven models; quality assurance; LLM agents

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

Emerging Analytical Chemistry Techniques in Toxicology: Detection, Characterization, and Risk Assessment

edited by Dilek Battal

submission deadline 31 Oct 2026 | Viewed by 274 | Submission Open

Keywords: analytical toxicology; advanced analytical techniques; mass spectrometry (MS); chromatographic methods; biomarker detection; toxicant identification; environmental and biological monitoring; trace-level analysis; exposure assessment; risk assessment; metabolomics in toxicology; forensic toxicology

(This special issue belongs to the Section Analytical Chemistry)

Cannabinoids in Drug Discovery

edited by

Lakshmi Kotra

submission deadline 31 Oct 2026 | Viewed by 274 | Submission Open

Keywords: cannabinoids; cannabinoid receptors; endocannabinoid system; chemical modifications

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

Photoredox Catalysis for Sustainable Chemical Synthesis/Medicinal Chemistry, 2nd Edition

edited by

Steven Bloom

submission deadline 31 Oct 2026 | Viewed by 273 | Submission Open

Keywords: visible light; photoredox catalysis; radical; medicinal chemistry; single electron transfer

(This special issue belongs to the Section Organic Chemistry)

Supramolecular Peptide Materials for Biomedical Applications

edited by

Anna Mitraki

and

Dhwanit R. Dave

submission deadline 31 Oct 2026 | Viewed by 264 | Submission Open

Keywords: supramolecular peptides; peptide self-assembly; peptide-based biomaterials; biomedical applications; drug delivery; tissue engineering

(This special issue belongs to the Section Macromolecular Chemistry)

Recent Progress of AI-Based Electrochemical Biosensors

edited by Zihni Onur Uygun and Ferhan Sağın

submission deadline 31 Oct 2026 | Viewed by 264 | Submission Open

Keywords: biosensors; artificial intelligence in biosensing; smart point-of-care diagnostics; intelligent signal processing; environmental monitoring

(This special issue belongs to the Section Electrochemistry)

Biodegradable Polymers in Asia

edited by

Jinlin He

submission deadline 31 Oct 2026 | Viewed by 257 | Submission Open

Keywords: biodegradable polymers; performance optimization; applications

(This special issue belongs to the Section Macromolecular Chemistry)

Organocatalytic Transformations: Scope, Mechanisms, and Applications

edited by

Jose Oscar C. Jiménez-Halla

and

Tushar Janardan Pawar

submission deadline 31 Oct 2026 | Viewed by 256 | Submission Open

Keywords: asymmetric catalysis; enantioselective synthesis; organocatalytic mechanisms; metal-free transformations; sustainable chemistry; computational chemistry; peptide synthesis; C–H functionalization; small molecule activation

(This special issue belongs to the Section Organic Chemistry)

Next-Generation Photochromic and Photofunctional Materials

edited by Junbiao Wu

submission deadline 31 Oct 2026 | Viewed by 251 | Submission Open

Keywords: photochromism; photofunctional materials; light-induced electron and ion transfer; proton-coupled; photoresponses; excited-state processes; solid-state photochemistry; inorganic–organic hybrid materials; metal–organic frameworks (MOFs); hydrogen-bonded organic frameworks (HOFs); zeolites and porous materials; low-dimensional and nanostructured materials; photonic and plasmonic materials; optical memory and data storage; radiation and UV dosimetry; photothermal conversion; luminescence modulation; smart sensing

(This special issue belongs to the Section Materials Chemistry)

Photosensitizers and Photodynamic Therapy

edited by

Vanya Mantareva

submission deadline 31 Oct 2026 | Viewed by 250 | Submission Open

Keywords: photosensitizers; porphyrinoids; natural photosensitive compounds; photophysics and photochemistry; singlet oxygen; photodynamic therapy

(This special issue belongs to the Section Photochemistry)

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

edited by Richard P. Matthews

submission deadline 31 Oct 2026 | Viewed by 248 | 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)

Proteomics in Autoimmune Disorders: From Immune Dysregulation to Therapeutic Targets

edited by Layla Kamareddine,

Shona Pedersen

and

Gulsen Guliz Anlar

submission deadline 31 Oct 2026 | Viewed by 246 | Submission Open

Keywords: proteomics; autoimmune disorders; biomarkers; mass spectrometry; immune profiling; translational research; molecular mechanisms; precision medicine

(This special issue belongs to the Section Chemical Biology)

Displaying special issue 251-300 on page 6 of 28.

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