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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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Emerging Multifunctional Materials for Next-Generation Energy Systems

edited by

Zhao Ding

and Shicong Yang

submission deadline 31 May 2026 | 5 articles | Viewed by 8489 | Submission Open

Keywords: multifunctional material; self-healing material; smart materials; hybrid material; solar-grade silicon purification; energy conversion and storage

(This special issue belongs to the Section Materials Chemistry)

Advanced Analytical Tools for Characterization and Quality Control of Food, Drugs, and Natural Active Ingredients, 3rd Edition

edited by

Alessandra Biancolillo

and

Angelo Antonio D'Archivio

submission deadline 31 May 2026 | 5 articles | Viewed by 8040 | Submission Open

Keywords: authentication; classification; pharmaceutical drugs; food; quality control; natural products; geographical origin; chemometrics

(This special issue belongs to the Section Analytical Chemistry)

Virgin Olive Oil: Processing, Byproducts, Quality Control, and Nutraceutical Profile—3rd Edition

edited by

Carlotta Breschi

Lorenzo Cecchi

and

Maria Bellumori

submission deadline 31 May 2026 | 3 articles | Viewed by 7531 | Submission Open

Keywords: virgin olive oil quality authentication; byproduct management; volatile compounds; phenolic compounds; sensory analysis; health-promoting properties; biological activity; authentication of origin; innovative extraction processes

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

New Strategies for Drug Development

edited by

Danuta Wojcieszyńska

and Ariel Marchlewicz

submission deadline 31 May 2026 | 4 articles | Viewed by 7120 | Submission Open

Keywords: drugs; biosynthesis; biotransformation; natural products; biological activity; bioactive compounds; structure– activity relationship; drug development

(This special issue belongs to the Section Medicinal Chemistry)

Harnessing Nature’s Chemical Diversity: Innovations in Isolation, Identification, and Synthesis

edited by Niko Radulović and

Marko Z. Mladenović

submission deadline 31 May 2026 | 5 articles | Viewed by 6925 | Submission Open

Keywords: natural product chemistry; phytochemistry and essential oils; isolation and structural elucidation; chromatographic techniques (GC; HPLC; etc.); mass spectrometry (GC-MS; LC-MS; etc.); NMR spectroscopy; analytical chemistry; synthetic and semi-synthetic methods; bioactive compounds and biological activity; medicinal and aromatic plants; chemotaxonomy; chemical ecology and plant defense mechanisms; biotechnological applications; structure– activity relationships (SAR); biomimetic synthesis

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

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

edited by

Thomas Letzel

submission deadline 31 May 2026 | 5 articles | Viewed by 6878 | 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)

Small Molecule Drug Discovery and Development to Face Neurodegenerative Threads

edited by

Maria Maddalena Cavalluzzi

and

Giovanni Lentini

submission deadline 31 May 2026 | 4 articles | Viewed by 6711 | Submission Open

Keywords: neurodegenerative diseases; neuroprotection; drug discovery; synthesis of pharmaceutically relevant compounds; isolation and identification of biologically active natural products; in vitro; ex vivo; and in vivo biological evaluation; molecular docking; drug repositioning

(This special issue belongs to the Section Medicinal Chemistry)

Advances in Food Analytical Methods

edited by Yahui Guo

submission deadline 31 May 2026 | 5 articles | Viewed by 5149 | Submission Open

Keywords: food analysis; food component; food contaminant; food additive; functional compound; chromatography; mass spectrometry; spectroscopy; biosensor; chemometrics; AI-based approach; food safety; food authenticity; nutritional quality; food traceability

(This special issue belongs to the Section Food Chemistry)

Phytochemistry, Antioxidants, and Anti-Diabetes

edited by

Valerija Vujčić Bok

, Gordana Rusak and

Ivana Sola

submission deadline 31 May 2026 | 2 articles | Viewed by 4721 | Submission Open

Keywords: bioactive compounds; natural antioxidants; plant extracts; functional foods; nutraceuticals; diabetes

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

5th Anniversary of the "Applied Chemistry" Section

edited by

Shaojun Yuan

submission deadline 31 May 2026 | 4 articles | Viewed by 4540 | Submission Open

Keywords: applied chemistry; new molecules and natural materials; solar energy and photo-electro-catalysis; analytical methods and techniques; electrochemistry and energy; biodegradable materials and medicines; environment and green chemistry

(This special issue belongs to the Section Applied Chemistry)

Antimicrobial Compounds and Biocontrol Strategies in Food Microbiology and Safety

edited by

María José Benito

and

Rocío Casquete Palencia

submission deadline 31 May 2026 | 2 articles | Viewed by 4425 | Submission Open

Keywords: antimicrobial compound; natural; synthetic; microbial; application; biocontrol; food; crop; agricultural; pathogenic; spoilage; bacteria; mold; in vitro; in vivo; mechanisms of action; membrane disruption; enzyme inhibition; interference with microbial communication; resistance management

(This special issue belongs to the Section Food Chemistry)

Bioactive Compounds for Brain Ischemia and Neurodegenerative Disease—3rd Edition

edited by

Ramunė Morkūnienė

and

Dalia M. Kopustinskiene

submission deadline 31 May 2026 | 3 articles | Viewed by 4199 | Submission Open

Keywords: brain; neuroprotection; neurodegenerative diseases; ischemia; mitochondria; oxidative stress; inflammation; bioactive compounds

(This special issue belongs to the Section Medicinal Chemistry)

Advanced Materials for Photocatalytic and Photoelectrocatalytic Water-Splitting

edited by

Lagnamayee Mohapatra

submission deadline 31 May 2026 | 2 articles | Viewed by 4158 | Submission Open

Keywords: photocatalysis; photoelectrocatalysis; water splitting; bandgap engineering; semiconductor materials; visible-light-driven catalysis

(This special issue belongs to the Section Materials Chemistry)

Development and Design of Novel Electrode Materials

edited by

Lei Wang

submission deadline 31 May 2026 | 3 articles | Viewed by 4085 | Submission Open

Keywords: electrode materials; supercapacitors; batteries; electrocatalysis; photovoltaic materials

(This special issue belongs to the Section Electrochemistry)

Exclusive Feature Papers on Molecular Structure, 2nd Edition

edited by

Chan Kyung Kim

submission deadline 31 May 2026 | 3 articles | Viewed by 4073 | Submission Open

Keywords: molecular structure; chemical bonding; molecular clusters; molecular similarity; protein structure prediction; quantum chemistry; spectroscopy; molecular dynamics simulations

(This special issue belongs to the Section Molecular Structure)

Feature Papers in Applied Chemistry: 4th Edition

edited by

Shaojun Yuan

submission deadline 31 May 2026 | 2 articles | Viewed by 3704 | Submission Open

Keywords: applied chemistry; new molecules/materials; analytical methods and techniques; electrochemistry and catalysis; new materials and medicines

(This special issue belongs to the Section Applied Chemistry)

Nutritional and Bioactive Components of Edible Parts of Medicinal Plants

edited by

Monika Kosmala

Elżbieta Karlińska

and Joanna Milala

submission deadline 31 May 2026 | 6 articles | Viewed by 3698 | Submission Open

Keywords: herbs; dietary fiber; polyphenols; ellagitannins; antioxidants; minerals; gastrointestinal track

(This special issue belongs to the Section Food Chemistry)

Food Bioactive Compounds: Chemical Challenges and Opportunities, 2nd Edition

edited by

Diana Obistioiu

and

Iuliana Popescu

submission deadline 31 May 2026 | 4 articles | Viewed by 3398 | Submission Open

Keywords: bioactive compounds; non-conventional extraction techniques; modern analytical methods; authenticity; molecular mechanism; functional properties; antimicrobial; antitumoral; anti-inflammatory; and antioxidant properties

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

Advances in Anticancer Activity of Natural Products and Related Compounds

edited by

Alexandra Mioc

submission deadline 31 May 2026 | 3 articles | Viewed by 3072 | Submission Open

Keywords: natural compounds; anticancer activity; bioactive compounds; cancer therapeutics; drug resistance; synergistic effect

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

Nanotechnology Landscape in Modern Medicine

edited by

Gianina Dodi

submission deadline 31 May 2026 | 1 articles | Viewed by 2982 | Submission Open

Keywords: nanotechnology; nanomedicine; healthcare; nanomaterials and nanostructures; nanoparticles; drug delivery systems; regenerative medicine; biosensing and monitoring; imaging and dignosis

(This special issue belongs to the Section Materials Chemistry)

Challenges and Future Directions in Toxic Activity and Antimicrobial Application of Plant and Food Extracts

edited by

Felipe Ascencio

and

Norma Hernández-Saavedra

submission deadline 31 May 2026 | 2 articles | Viewed by 2958 | Submission Open

Keywords: effectiveness: evaluate the efficacy of extracts under various conditions and against different pathogens; toxicity: investigate potential adverse effects of extracts on humans and animals; biodiversity: explore the diversity of plant species to discover new antimicrobial properties; sustainability: develop extraction and production methods that are environmentally friendly and sustainable; innovation: apply modern technologies; such as biotechnology; to improve the efficacy of extracts

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

Opportunities and Challenges in Protein Crystallography

edited by

Rocco Caliandro

submission deadline 31 May 2026 | 1 articles | Viewed by 2810 | Submission Open

Keywords: protein crystals; X-ray diffraction; cryo-EM; small-angle X-ray scattering; phasing methods; structural analysis

(This special issue belongs to the Section Chemical Biology)

Metal Complexes: Synthesis, Characterization and Applications

edited by

Raquel G. Soengas

and

Sara M. Soto

submission deadline 31 May 2026 | 2 articles | Viewed by 2632 | Submission Open

Keywords: coordination compounds; synthetic strategies; magnetic properties; optical properties; metallodrugs; catalysis

(This special issue belongs to the Section Organometallic Chemistry)

Enzyme Inhibitors: Design, Synthesis and Biological Evaluation—3rd Edition

edited by

Letizia Crocetti

and

Maris Cinelli

submission deadline 31 May 2026 | 2 articles | Viewed by 2159 | Submission Open

Keywords: enzyme inhibitors; drug design; organic synthesis; biological evaluation; molecular modeling studies; kinetic experiment

(This special issue belongs to the Section Chemical Biology)

Bioactive Compounds Encapsulation System: Design and Applications

edited by

Yong-Jiang Xu

and

Gangcheng Wu

submission deadline 31 May 2026 | 1 articles | Viewed by 2055 | Submission Open

Keywords: bioactive compounds; encapsulation; nanocarriers; bioavailability; targeted delivery; drug delivery; functional foods

(This special issue belongs to the Section Food Chemistry)

Advances in Transition Metal Catalysis for Organic Synthesis

edited by

Haibo Ge

and

Chong Liu

submission deadline 31 May 2026 | 1 articles | Viewed by 1883 | Submission Open

Keywords: transition metal catalysis; organometallic chemistry; organic synthesis; alkene functionalization; C-H functionalization

(This special issue belongs to the Section Organometallic Chemistry)

Purposeful Assembly and Versatile Applications of Advanced Crystalline Frameworks

edited by

Liming Fan

submission deadline 31 May 2026 | 2 articles | Viewed by 1695 | Submission Open

Keywords: metal– organic frameworks; covalent organic frameworks; hydrogen-bonded organic frameworks; post-synthetic modification strategy; composite materials

(This special issue belongs to the Section Inorganic Chemistry)

Treatment and Analysis of PFAS in Environmental Pollution

edited by

Shilai Hao

submission deadline 31 May 2026 | 1 articles | Viewed by 1500 | Submission Open

Keywords: PFAS; total fluorine; treatment; environmental samples

(This special issue belongs to the Section Green Chemistry)

Chemical Research on Photosensitive Materials, 2nd Edition

edited by Shengjie Wang

submission deadline 31 May 2026 | 1 articles | Viewed by 1206 | Submission Open

Keywords: photosensitive materials; photochromic materials; photoluminescence materials; photothermal materials; photovoltaic materials; photocatalysts

(This special issue belongs to the Section Materials Chemistry)

Heterocycles: Design, Synthesis and Biological Evaluation, 4th Edition

edited by

Edward Krzyżak

and

Piotr Świątek

submission deadline 31 May 2026 | 2 articles | Viewed by 1051 | Submission Open

Keywords: heterocycles; organic synthesis; drug design; biological activity; medicinal chemistry

(This special issue belongs to the Section Medicinal Chemistry)

Corrosion Mechanisms and Protection Technologies of Metallic Materials Under Harsh Environments

edited by Baojun Dong,

Tianyi Zhang

, Dezhi Zeng and

Yuxin Zhang

submission deadline 31 May 2026 | 2 articles | Viewed by 1027 | Submission Open

Keywords: metal coating; non-metal coating; coating design and preparation; coating performance evaluation; corrosion mechanism in harsh environments

(This special issue belongs to the Section Materials Chemistry)

Nanoparticles for Environmental Applications

edited by

Marija B. Radoičić

submission deadline 31 May 2026 | 1 articles | Viewed by 966 | Submission Open

Keywords: environmental nanotechnology; water treatment; remediation; nanoparticles; pollution control; EMI shielding; ecotoxicology; green chemistry

(This special issue belongs to the Section Materials Chemistry)

Advances in Biomaterials: Preparation, Properties and Applications in Biomedicine and Tissue Engineering

edited by

Lei Nie

and

Chao Wang

submission deadline 31 May 2026 | 1 articles | Viewed by 935 | Submission Open

Keywords: biomaterials; decellularized extracellular matrix; tissue engineering; biomedicine; dECM scaffold; bioink; hydrogels

(This special issue belongs to the Section Materials Chemistry)

Selectivity and Theoretical Studies of Cycloaddition Reactions

edited by

Radomir Jasiński

Agnieszka Łapczuk

and Ewa Dresler

submission deadline 31 May 2026 | 1 articles | Viewed by 931 | Submission Open

Keywords: cycloaddition; selectivity; density functional theory (DFT); reaction mechanisms; catalysis; stereocontrol

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

Advances in Energetic Materials and Associated Detection Methods

edited by

Tomasz Jarosz

and Karolina Głosz

submission deadline 31 May 2026 | 1 articles | Viewed by 765 | Submission Open

Keywords: energetic materials; detection; sensors; fumes; risk assessment

(This special issue belongs to the Section Applied Chemistry)

The Catalytic Conversion of Biomass

edited by

Nikolaos Kokkinos

submission deadline 31 May 2026 | 1 articles | Viewed by 697 | Submission Open

Keywords: biomass valorization; catalysts; biocatalysis; electrochemical catalysis; industrial catalysis; renewable feedstocks; sustainable chemistry; bio-based products

(This special issue belongs to the Section Green Chemistry)

New Advances in Radiopharmaceutical Sciences, 2nd Edition

edited by

Elisabeth Eppard

submission deadline 31 May 2026 | 1 articles | Viewed by 687 | Submission Open

Keywords: radiopharmacy/radiopharmaceuticals; radiochemistry; radionuclide therapy; theranostics; PET; SPECT; tadiolabeling techniques; radionuclide production; nuclear medicine

(This special issue belongs to the Section Medicinal Chemistry)

Role of Computer Aided Drug Design in Drug Development, Second Edition

edited by

Murilo Lamim Bello

submission deadline 31 May 2026 | Viewed by 610 | Submission Open

Keywords: computer-aided drug design; molecular modeling and simulations; machine learning and artificial intelligence; drug synthesis pathway design; drug carriers design; drug crystal structures modeling

(This special issue belongs to the Section Medicinal Chemistry)

Small Fish Models for Molecular-Ethnopharmacology and Drug Discovery

edited by

Yasuhito Shimada

submission deadline 31 May 2026 | 1 articles | Viewed by 515 | Submission Open

Keywords: bioactive compounds; chemical biology; natural product screening; omics; phytochemicals; systems pharmacology

(This special issue belongs to the Section Medicinal Chemistry)

Advanced Approaches for Analysis of Food Contaminants and Residues

edited by

Emmanouil Tsochatzis

submission deadline 31 May 2026 | 1 articles | Viewed by 512 | 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)

Organometallic Compounds: Design, Synthesis and Application: 2nd Edition

edited by

Yanping Ma

submission deadline 31 May 2026 | 1 articles | Viewed by 503 | Submission Open

Keywords: organometallic compounds; design and synthesis; transition metal complexes; catalysis; metal coordination; catalytic applications; mechanisms; organic– inorganic hybrid compounds

(This special issue belongs to the Section Organometallic Chemistry)

Biopolymer-Based Materials: Preparation, Properties and Applications

edited by

Gabriela Dudek

submission deadline 31 May 2026 | 1 articles | Viewed by 364 | Submission Open

Keywords: biopolymer; biopolymer based; material; preparation; processing; characterization; modification; physicochemical; mechanical; application; packaging; biomedical engineering; agriculture; environmental remediation

(This special issue belongs to the Section Green Chemistry)

Innovations in Heterocyclic Chemistry: Synthesis, Characterization and Bioactivity

edited by Fernanda da Costa Santos Boechat, Maria Cecília B. V. De Souza,

Marcela Cristina de Moraes

and

Pedro Netto Batalha

submission deadline 31 May 2026 | Viewed by 352 | Submission Open

Keywords: heterocycles; synthesis; bioactivity; medicinal chemistry; structure-activity relationship (SAR); green chemistry; biochromatography; sustainability

(This special issue belongs to the Section Medicinal Chemistry)

Lignin Valorization in Biorefineries

edited by Carlos Eduardo De Araújo Padilha, Everaldo Silvino Dos Santos and Domingos Fabiano de Santana Souza

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

Keywords: pretreatment; bioactive compounds; antioxidant properties; kraft lignin; extraction; thermochemical processes

(This special issue belongs to the Section Green Chemistry)

Photo- and Electro-Chemical Synthesis and Their Combined Processes

edited by

Carlos A. Martínez-Huitle

submission deadline 31 May 2026 | Viewed by 248 | Submission Open

Keywords: photoelectrochemical; electrochemical; synthesis; hydrogen; valuable compounds; energy production and conversion; CO2; fuels

(This special issue belongs to the Section Electrochemistry)

Essential Oils and Their Derivatives: Characterization, Biological Activity and Application

edited by

Noura Ahmed

submission deadline 31 May 2026 | Viewed by 248 | Submission Open

Keywords: essential oils; aromatic plants; natural products; bioactive compounds; biological activities; pharmacology of volatiles; structure elucidation; isolation techniques

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

Advanced Materials for Efficient Sulfur Removal in Industrial and Environmental Applications

edited by

Adeniyi S. Ogunlaja

and Tendai O. Dembaremba

submission deadline 31 May 2026 | Viewed by 248 | Submission Open

Keywords: industrial desulfurization; catalytic sulfur removal; nanostructured catalysts; hydrodesulfurization (HDS); environmental catalysis; SOx emission control; clean fuel production; process scalability

Supercritical Fluid Extraction of Natural Products

edited by

Laura Jūrienė

and

Petras Rimantas Venskutonis

submission deadline 31 May 2026 | Viewed by 231 | Submission Open

Keywords: supercritical fluid extraction (SFE); natural products; green chemistry; carbon dioxide extraction; sustainable extraction; phytochemicals; scale-up; environmentally friendly processes

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

Doping Strategies for Carbon-Based Electrocatalysts

edited by

Paweł Szroeder

submission deadline 31 May 2026 | Viewed by 208 | Submission Open

Keywords: carbons; p-doping; n-doping; Fermi level engineering; electrocatalysis; electrochemical sensors; energy conversion and storage; environmental remediation

(This special issue belongs to the Section Electrochemistry)

Bioactive Natural Products: The Potential Sources of New Drugs

edited by

Sanah Nkadimeng

and

Gerda Fouchè

submission deadline 31 May 2026 | Viewed by 193 | Submission Open

Keywords: bioactive natural compounds; chemical characterization and optimization; bioactive natural products’ safety; cytotoxicity; bioactive natural products’ mechanisms of action; biological activities in vitro and in vivo; chronic diseases; bioactive natural product in non-communicable diseases-chronic inflammation/chronic stress/drug discovery/anticancer

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

Displaying special issue 651-700 on page 14 of 24.

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