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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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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 2969 | 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 2821 | 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 2648 | 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 2195 | 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 2067 | 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 1895 | 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 1712 | 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 1546 | 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 1221 | 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 1119 | 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 1056 | 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 985 | 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 942 | 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 939 | 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 777 | 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 716 | 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 701 | 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 612 | 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)

Advanced Approaches for Analysis of Food Contaminants and Residues

edited by

Emmanouil Tsochatzis

submission deadline 31 May 2026 | 1 articles | Viewed by 550 | 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)

Small Fish Models for Molecular-Ethnopharmacology and Drug Discovery

edited by

Yasuhito Shimada

submission deadline 31 May 2026 | 1 articles | Viewed by 534 | Submission Open

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

(This special issue belongs to the Section Medicinal Chemistry)

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

edited by

Yanping Ma

submission deadline 31 May 2026 | 1 articles | Viewed by 518 | 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 377 | 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 356 | 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 | 1 articles | Viewed by 294 | Submission Open

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

(This special issue belongs to the Section Green Chemistry)

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

edited by

Noura Ahmed

submission deadline 31 May 2026 | Viewed by 253 | 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 249 | Submission Open

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

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)

Supercritical Fluid Extraction of Natural Products

edited by

Laura Jūrienė

and

Petras Rimantas Venskutonis

submission deadline 31 May 2026 | Viewed by 234 | 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 210 | 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 195 | 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)

Advances in Plant-Sourced Natural Compounds as Anticancer Agents, 2nd Edition

edited by

and

submission deadline 31 May 2026 | Viewed by 167 | Submission Open

Keywords: medicinal plants; natural compounds; phytochemicals; antioxidant activity; anticancer activity; phytotherapy; drug discovery; drug delivery; pharmaceutical formulation

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

Analyses and Applications of Phenolic Compounds in Food—3rd Edition

edited by

Ana Teresa Sanches-Silva

and

Oscar Núñez

submission deadline 31 May 2026 | Viewed by 154 | Submission Open

Keywords: phenolics; extraction; identification; applications in food matrix

(This special issue belongs to the Section Food Chemistry)

Bioactive Compounds in Food: Extraction and Characterization

edited by

Michał Halagarda

and

Sascha Rohn

submission deadline 31 May 2026 | Viewed by 151 | Submission Open

Keywords: bioactive compounds; food matrices; extraction techniques; green technologies; analytical characterization; structural elucidation; stability and bioavailability; functional food applications

(This special issue belongs to the Section Food Chemistry)

Electrochemical Catalytic Conversion of Small Molecules

edited by

Xinyue Wang

Libin Zeng

and

Guandong Su

submission deadline 31 May 2026 | Viewed by 149 | Submission Open

Keywords: electrocatalysis; small molecule conversion; single-atom catalysis; mechanism study; sustainable energy

(This special issue belongs to the Section Electrochemistry)

Covalent Organic Frameworks for Energy Storage

edited by Madagonda M Vadiyar

submission deadline 31 May 2026 | Viewed by 143 | Submission Open

Keywords: covalent organic frameworks; synthesis and characterization; energy storage; supercapacitors; aqueous batteries; zinc-ion batteries; charge storage mechanisms; ex situ/in situ characterizations

(This special issue belongs to the Section Materials Chemistry)

Recent Advances in Structural Characterization by Raman Spectroscopy

edited by

Ioana Stanculescu

submission deadline 31 May 2026 | Viewed by 139 | Submission Open

Keywords: Raman; pharmaceuticals; materials research; life sciences; molecular vibrations

(This special issue belongs to the Section Analytical Chemistry)

Review Papers in Physical Chemistry

edited by

Maofa Ge

submission deadline 31 May 2026 | Viewed by 133 | Submission Open

Keywords: physical chemistry; spectroscopy; quantum chemistry; surface chemistry; molecular dynamics simulations

(This special issue belongs to the Section Physical Chemistry)

Current Research in Wine Chemistry and Analysis

edited by

Elisavet Bouloumpasi

submission deadline 31 May 2026 | Viewed by 131 | Submission Open

Keywords: wine chemistry; analytical methods; sensory properties; phenolic compounds; fermentation chemistry

(This special issue belongs to the Section Food Chemistry)

Bioactive Food Compounds and Their Health Benefits

edited by

Sabina Lachowicz-Wiśniewska

submission deadline 31 May 2026 | Viewed by 130 | Submission Open

Keywords: polyphenolic compounds; bioactive compound; natural products; food safety; phytochemicals; carotenoids; LC-MS/MS techniques; HPLC-DAD-MS; fruits; vegetables; and mushrooms; antioxidant compounds; functional food; prebiotics; health benefits

(This special issue belongs to the Section Food Chemistry)

Advances in Efficient Conversion of Biomass Resources

edited by

Yu-Cai He

and

Wei Tang

submission deadline 31 May 2026 | Viewed by 124 | Submission Open

Keywords: lignocellulose biomass; food waste; algal biomass; urban solid waste; platform compound; chemobiological valorization of biomass; biotransformation and biocatalysis; biomass pretreatment; biorefining; life cycles of biomass valorization

(This special issue belongs to the Section Green Chemistry)

Molecular Crystals: Exploring Structure, Properties, and Applications

edited by

Silvano Geremia

submission deadline 31 May 2026 | Viewed by 119 | Submission Open

Keywords: molecular crystals; polymorphism; crystal growth; solid-state structure– property relationships; shape-memory and self-healing crystals; elastic– plastic crystals; materials for electronics and photonics; pharmaceutical crystalline materials

(This special issue belongs to the Section Materials Chemistry)

Advanced Materials for Gaseous Pollutant Removal

edited by

Xin Liu

Yongbiao Hua

and Yueshuang Mao

submission deadline 31 May 2026 | Viewed by 114 | Submission Open

Keywords: gaseous pollutant removal; catalysis; adsorption; sustainable remediation; environmentally friendly materials

(This special issue belongs to the Section Materials Chemistry)

Bioactive Compounds in Food: Advanced Extraction and Characterization Methods

edited by

Gerasopoulos Dimitrios

submission deadline 31 May 2026 | Viewed by 106 | Submission Open

Keywords: bioactive compounds; food matrices; extraction methods; process optimization; green and sustainable solvents; characterization techniques; stability assessment; bioavailability; delivery systems; functional foods; nutraceuticals; composition– functionality relationships

(This special issue belongs to the Section Food Chemistry)

Zeolites and Related Nanoporous Materials: Green Supports for Molecules

edited by

Nevenka Rajić

submission deadline 31 May 2026 | Viewed by 104 | Submission Open

Keywords: porous materials; zeolites; selective catalysts; zeolite-like materials; molecule selectivity

(This special issue belongs to the Section Materials Chemistry)

Advances in Biomass Conversion, Biofuel Production and Biorefinery Processes

edited by

Juan Carlos Serrano-Ruiz

and

Mayra Anabel Lara-Angulo

submission deadline 31 May 2026 | Viewed by 103 | Submission Open

Keywords: biomass conversion; biofuels; catalysis; biorefinery integration; CO2 utilization; hydrogen production; energy storage; life-cycle and techno-economic analysis

(This special issue belongs to the Section Green Chemistry)

Innovative Catalysts and Multimodal Strategies for Water Remediation

edited by Lucyna Bilińska,

Yongchang Sun

and

Aleksandra Kędzierska-Sar

submission deadline 31 May 2026 | Viewed by 99 | Submission Open

Keywords: nanostructured catalysts; thin-film catalysts; transition metal and carbon-based catalysts; advanced oxidation processes (AOPs); electrochemical advanced oxidation processes (EAOPs); photocatalysis; catalytic ozonation; novel catalysts for water remediation; wastewater treatment; functional material

(This special issue belongs to the Section Green Chemistry)

Carbon-Based Materials for Sustainable Chemistry: 3rd Edition

edited by

Dipendu Saha

submission deadline 31 May 2026 | Viewed by 98 | Submission Open

Keywords: carbon-based materials; carbon nanostructures; adsorption; sustainability

(This special issue belongs to the Section Materials Chemistry)

Small Molecules in Molecular Imaging, Chemical Biology and Drug Discovery

edited by

Wing-Leung Wong

submission deadline 31 May 2026 | Viewed by 96 | Submission Open

Keywords: small molecules; molecular design and synthesis; molecular imaging; chemical biology; drug discovery; biomarker visualization; therapeutic targeting; translational medicine; disease mechanisms; personalized diagnostics; biomedical innovation

(This special issue belongs to the Section Medicinal Chemistry)

Bioactive Peptides: Isolation, Identification and Application

edited by

Monika Karaś

Urszula Szymanowska

and

Anna Maria Papini

submission deadline 31 May 2026 | Viewed by 94 | Submission Open

Keywords: peptides; proteins; hydrolysis; bioavailability; application; biological activity; food technology

(This special issue belongs to the Section Food Chemistry)

Agricultural and Food Residues: Treatment and Valorization of By-Products and Wastes

edited by

Dimitris Sarris

and Zacharias Ioannou

submission deadline 31 May 2026 | Viewed by 93 | Submission Open

Keywords: agri-food waste management; valorization processes; waste treatment technologies; bioconversion and fermentation; extraction and purification methods; bio-based materials and products; nutrient and resource recovery; process optimization; sustainable food systems

(This special issue belongs to the Section Green Chemistry)

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

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