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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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Advancements in Enzyme Immobilization Techniques

edited by

Benevides C. Pessela

and

Gloria Fernandez-Lorente

submission deadline 31 Dec 2026 | Viewed by 1025 | Submission Open

Keywords: enzyme immobilization; biocatalysis; enzyme stabilization; reusability/recyclability; activity retention; operational stability; mass transfer limitation

(This special issue belongs to the Section Applied Chemistry)

Nanocarriers for Diagnostics, Imaging and Drug Delivery

edited by Jie Pan and Yonghui Liu

submission deadline 31 Dec 2026 | 1 articles | Viewed by 1013 | Submission Open

Keywords: nanocarriers; diagnostics; imaging; drug delivery; targeted therapy

(This special issue belongs to the Section Nanochemistry)

Silymarin and Derivatives: From Biosynthesis to Health Benefits 2.0

edited by

Dominique Delmas

submission deadline 31 Dec 2026 | Viewed by 1006 | Submission Open

Keywords: silymarin: sources and biosynthesis; secondary metabolites and silymarin derivatives; silymarin bioavailability; silymarin and cardiovascular diseases; silymarin and metabolic syndrome; silymarin and cancer; silymarin and inflammation and immune diseases; silymarin and degenerative age-related diseases

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

Anticancer Drugs: Design, Synthesis, and Anticancer Activity

edited by Yusuf Tutar

submission deadline 31 Dec 2026 | 1 articles | Viewed by 998 | Submission Open

Keywords: structure–activity relationships; pharmacological evaluation; prodrugs and drug delivery; targeted cancer therapy; small molecules, peptides and natural products as anticancer agents; computational drug discovery and virtual screening; mechanism of action studies; in vitro and in vivo anticancer assays; cancer cell signaling modulation

(This special issue belongs to the Section Medicinal Chemistry)

The Development of Photosensitizers and Photodynamic Medicine

edited by

Peng Huang

and

Peng Xu

submission deadline 31 Dec 2026 | Viewed by 994 | Submission Open

Keywords: photodynamic therapy; photosensitizer development; photosensitizer pharmaceutics; photosensitizer composite materials; targeted delivery for photosensitizer; photodynamic dosimetry

(This special issue belongs to the Section Medicinal Chemistry)

Recent Advances of Biochar in Wastewater Treatment

edited by

Joanna Kończyk

and

Iwona Zawierucha

submission deadline 31 Dec 2026 | 2 articles | Viewed by 988 | Submission Open

Keywords: biochar; wastewater treatment; adsorption; hybrid treatment; sorbent; catalyst; composite; heavy metals; nutrients; pharmaceuticals; circular economy; life cycle assessment

(This special issue belongs to the Section Applied Chemistry)

Food Chemistry and Bioactive Compounds in Relation to Health, 3rd Edition

edited by

Iuliana Aprodu

Leontina Grigore-Gurgu

and

Elena Enachi

submission deadline 31 Dec 2026 | 2 articles | Viewed by 971 | Submission Open

Keywords: biologically active compounds; functional food ingredients; metabolic pathways; health benefits; foodborne pathogens; probiotics; chromatographic analysis; enzymes applied in the food industry

(This special issue belongs to the Section Food Chemistry)

Impact of Aromatic Plants and Their Extracts on Insect Models for Nutritional, Medicinal, and Crop Protection Research

edited by

Antonella Rosa

Carla Masala

and

Paolo Solari

submission deadline 31 Dec 2026 | 2 articles | Viewed by 947 | Submission Open

Keywords: aromatic plants; bioactive extracts; volatiles; insect models; edible insects; olfaction; bioinsecticides

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

Challenges and Advances in Green Analytical Chemistry

edited by Hakim Faraji,

Miguel Ángel Rodríguez-Delgado

Bárbara Socas-Rodríguez

and

Antonio V. Herrera-Herrera

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

Keywords: green analytical chemistry; miniaturized extraction; nanomaterials; chromatography; mass spectrometry; environmental analysis; food analysis; bioanalytical chemistry; sustainability; novel methods

Advances in Polymeric Systems Loaded with Natural Bioactive Compounds

edited by

Marcel Popa

and

Camelia Elena Iurciuc-Tincu

submission deadline 31 Dec 2026 | 1 articles | Viewed by 925 | Submission Open

Keywords: polymer-based delivery systems with natural bioactive principles encapsulated; polyphenols/flavonoids; polymer–drug conjugates; drug delivery system; natural bioactive compounds; active targeting; omega 3 fatty acids; carotenoids; vitamins; nanoparticles; nanocapsules; liposomes; hydrogels

(This special issue belongs to the Section Macromolecular Chemistry)

Synthesis, Modification, and Bioactive Evaluation of Peptides and Their Analogs

edited by

Dancho Danalev

submission deadline 31 Dec 2026 | 1 articles | Viewed by 914 | Submission Open

Keywords: biologically active peptides; bioconjugates with peptides; peptide ligands; biological activity; non-proteinogenic amino acids; peptide mimetics

(This special issue belongs to the Section Chemical Biology)

Recent Advances in Circularly Polarized Luminescence Materials

edited by

Chuanfeng Chen

and Biao Zhao

submission deadline 31 Dec 2026 | 1 articles | Viewed by 914 | Submission Open

Keywords: circularly polarized luminescence; chirality; small molecules; polymers; chiral liquid crystals; self-assembled materials; optoelectronics; information security

(This special issue belongs to the Section Materials Chemistry)

Curcumin Derivatives: Synthesis, Structural Diversity and Biological Potential

edited by Raul G. Enriquez and Marco A. Obregón-Mendoza

submission deadline 31 Dec 2026 | 1 articles | Viewed by 898 | Submission Open

Keywords: curcumin; demethoxycurcumin; bisdemethoxycurcumin; antioxidant activities; anti-cancer activities; anti-Alzheimer disease; curcuminoid metal complexes; curcumin-based fluorescent probes

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

Food Fraud, Adulteration, and Contamination: Challenges, Detection Strategies, and Prevention

edited by

Andrzej Wasik

submission deadline 31 Dec 2026 | 2 articles | Viewed by 889 | Submission Open

Keywords: food safety; food quality; food adulteration; sample preparation; emerging food contaminants; quality monitoring; mass spectrometry; chromatography; food authentication; trace analysis; analytical methods

(This special issue belongs to the Section Food Chemistry)

Advanced Molecular Detection and Health Risk Evaluation: From Food Hazards to Disease Biomarkers

edited by

Tianzhu Guan

and

Jie Zhang

submission deadline 31 Dec 2026 | 1 articles | Viewed by 857 | Submission Open

Keywords: molecular detection; foodborne hazards; emerging contaminants; toxicity mechanisms; nuclear receptors; health risk evaluation; cancer biomarkers

(This special issue belongs to the Section Analytical Chemistry)

Advanced Pharmaceutical Analytical Technology—2nd Edition

edited by

Alexis Oliva

and

Daniela Elena Popa

submission deadline 31 Dec 2026 | 1 articles | Viewed by 828 | Submission Open

Keywords: pharmaceutical; quality by design; design of experiments; analytical method; validation; development and optimization; quality control samples

(This special issue belongs to the Section Analytical Chemistry)

Chemical Compositions and Bioactivities of Foods, 2nd Edition

edited by

Zhaojun Wei

submission deadline 31 Dec 2026 | 1 articles | Viewed by 828 | Submission Open

Keywords: foods; phytochemicals; biophytochemicals; food bioactives; chemical compositions; functional foods; dietary supplements; medical foods; biological pathway; molecular mechanisms

(This special issue belongs to the Section Food Chemistry)

Inhibitors in Cancer Therapy

edited by

Begüm Nurpelin Sağlık Özkan

submission deadline 31 Dec 2026 | 1 articles | Viewed by 797 | Submission Open

Keywords: cancer therapy; small-molecule inhibitors; medicinal chemistry; drug design; computer-aided drug design (CADD); molecular docking; molecular dynamic simulations; enzyme inhibitors; anticancer drug discover; cancer-related targets

(This special issue belongs to the Section Medicinal Chemistry)

Optical Functional Materials: Design, Synthesis and Applications

edited by Tamara Potlog and

Anton Airinei

submission deadline 31 Dec 2026 | 1 articles | Viewed by 793 | Submission Open

Keywords: optical; design; synthesis; application; material; physical; structural; inorganic; organic; hybrid; solid-state laser; thin film; nonlinear; mechanistic; optimization

(This special issue belongs to the Section Materials Chemistry)

Bioactive Molecules in Sustainable Food Packaging: From Natural Sources to Functional Materials

edited by Mia Kurek

submission deadline 31 Dec 2026 | 2 articles | Viewed by 788 | Submission Open

Keywords: functional food packaging materials; controlled release; stability of active compounds; scalability

(This special issue belongs to the Section Materials Chemistry)

Applied Analytical Chemistry: Third Edition

edited by

Petr Bednar

and

Lukáš Kučera

submission deadline 31 Dec 2026 | 1 articles | Viewed by 755 | Submission Open

Keywords: food production; forensic practice and archaeology; environmental monitoring; clinical practice; quality control in industry; analysis of plant material

(This special issue belongs to the Section Analytical Chemistry)

Exclusive Contributions by the Editorial Board Members (EBMs) of the Organic Chemistry Section of Molecules, 2nd Edition

edited by

Maged Henary

submission deadline 31 Dec 2026 | 1 articles | Viewed by 728 | Submission Open

Keywords: organic compounds; organic synthesis; organic reaction; click chemistry; organocatalysis

(This special issue belongs to the Section Organic Chemistry)

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

edited by

and

submission deadline 31 Dec 2026 | Viewed by 726 | 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)

MOF-Based Catalysts for CO₂ Capture and Conversion

edited by Ning Liu and

Wenyuan Huang

submission deadline 31 Dec 2026 | 1 articles | Viewed by 692 | Submission Open

Keywords: metal–organic frameworks (MOFs); CO2 capture and conversion; heterogeneous catalysis; sustainable catalysis; porous materials; green chemistry; structure–activity relationship; carbon utilization

(This special issue belongs to the Section Materials Chemistry)

Tautomerism and Proton Transfer—Fundamental Aspects and Applicability

edited by

Liudmil Antonov

submission deadline 31 Dec 2026 | 1 articles | Viewed by 665 | Submission Open

Keywords: tautomerism; proton transfer; hydrogen bonding; molecular switches; molecular sensors; dye chemistry; organic synthesis; solvent effect; photo-, halo-, and thermochromism; molecular spectroscopy; computational chemistry; photochemistry

(This special issue belongs to the Section Physical Chemistry)

Advanced Approaches for Extraction and Characterization of Bioactive Compounds from Natural Products

edited by

Ebru Kurtulbaş

and

Selin Şahin

submission deadline 31 Dec 2026 | 1 articles | Viewed by 641 | Submission Open

Keywords: bioactive compounds; natural products; extraction techniques; green extraction; analytical characterization; process optimization

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

Synthesis, Doping, and Thermoelectric Properties of Chalcogenide Materials

edited by

Il-Ho Kim

submission deadline 31 Dec 2026 | 1 articles | Viewed by 631 | Submission Open

Keywords: chalcogenide thermoelectrics; chemical synthesis and modification; doping and defect chemistry; non-stoichiometry and vacancies; structure-property relationships; electron-phonon interactions; low lattice thermal conductivity

(This special issue belongs to the Section Materials Chemistry)

Next-Generation Electrochemical Sensors for a Sustainable Future

edited by

Mihaela Buleandra

Irinel Adriana Badea

and

Dana Elena Popa

submission deadline 31 Dec 2026 | 1 articles | Viewed by 629 | Submission Open

Keywords: electrochemical sensors; next-generation sensors; sustainable materials; novel materials; sustainable applications

(This special issue belongs to the Section Electrochemistry)

Design, Synthesis, and Biological Evaluation of Novel Metal Complexes

edited by

Aurélian P. Guléa

and

Olga Garbuz

submission deadline 31 Dec 2026 | 1 articles | Viewed by 619 | Submission Open

Keywords: coordination compound; 3d metal complexes; biological activity; anticancer activity; selectivity; toxicity; antioxidant activity; antibacterial activity; mechanism of action

(This special issue belongs to the Section Medicinal Chemistry)

Molecular Insights into Essential Oils and Plant Extracts: Chemistry, Bioactivity, and Functional Relevance

edited by

Stanislava Ivanova

and

Diana Karcheva-Bahchevanska

submission deadline 31 Dec 2026 | 1 articles | Viewed by 612 | Submission Open

Keywords: essential oils; plants; bioactivity; functional foods

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

Light-Driven Organic Chemistry: Synthesis, Mechanisms, and Photochemical Applications

edited by

Rodolfo G. Fiorot

and Fernando Heering Bartoloni

submission deadline 31 Dec 2026 | 1 articles | Viewed by 612 | Submission Open

Keywords: organic photochemistry; light-driven synthesis; photocatalysis; excited-state chemistry; photophysical properties; mechanistic investigations; photoresponsive molecules

(This special issue belongs to the Section Photochemistry)

Recent Advances in Asymmetric Synthesis: From Reagents to Reactions

edited by

Antonio Massa

submission deadline 31 Dec 2026 | 1 articles | Viewed by 608 | Submission Open

Keywords: asymmetric synthesis; enantioselective catalysis; chiral reagents; asymmetric catalysis; stereoselective reactions; catalyst design; sustainable synthesis; organic synthesis

(This special issue belongs to the Section Organic Chemistry)

Cyclodextrin Chemistry and Toxicology, 4th Edition

edited by

Rosa Iacovino

and Gianluca D’Abrosca

submission deadline 31 Dec 2026 | 1 articles | Viewed by 587 | Submission Open

Keywords: inclusion complexes; cyclodextrin derivates; biological activities of cyclodextrin; pharmacology and pharmacokinetics of cyclodextrin; industrial applications of cyclodextrins; nano-materials and nano-structured coatings containing cyclodextrins; environmental remediation of cyclodextrins; toxicity of cyclodextrin inclusion complexes

(This special issue belongs to the Section Applied Chemistry)

Challenges in Green Analytical Chemistry

edited by

Slobodan Gadzuric

and

Tatjana Trtić-Petrović

submission deadline 31 Dec 2026 | Viewed by 585 | 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

Beyond Convention: Novel Sources, Strategies, and Technologies for Researching Fungal Bioactives

edited by

Karl Wah-Keung Tsim

Xinyu Wang

and

Meixia Yang

submission deadline 31 Dec 2026 | Viewed by 574 | Submission Open

Keywords: fungal bioactives; genome mining; metagenomics; synthetic biology; AI-driven discovery; structure elucidation; extremophilic fungi; drug discovery pipelines

New Synthetic Drugs of Abuse

edited by

Helena Gaspar

and

Nuno da Rosa Neng

submission deadline 31 Dec 2026 | 1 articles | Viewed by 553 | Submission Open

Keywords: new psychoactive substances (NPS); structure–activity relationships; pharmacokinetics and pharmacodynamics; toxicological mechanisms; advanced analytical methodologies; biomarkers of exposure

(This special issue belongs to the Section Medicinal Chemistry)

Chemistry of Amino Acids, Peptides, and Proteins

edited by

Maksymilian Chruszcz

and Nicholas Truex

submission deadline 31 Dec 2026 | Viewed by 543 | Submission Open

Keywords: amino acids; peptides; proteins; synthesis; derivatives; characterization; structural studies; biophysical properties; natural products

(This special issue belongs to the Section Macromolecular Chemistry)

Bee Products: Physicochemical Properties, Bioactivities, and Health Benefits

edited by

Maja Jazvinšćak Jembrek

and

Nada Orsolic

submission deadline 31 Dec 2026 | 1 articles | Viewed by 520 | Submission Open

Keywords: honey bee products; chemical characterization; biological and pharmacological activities; health benefits; side effects of honey bee products

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

Environmentally Friendly Biobased Flame Retardants for Polymeric Materials

edited by Yao Yuan and

Wei Wang

submission deadline 31 Dec 2026 | 1 articles | Viewed by 509 | Submission Open

Keywords: biobased flame retardants; polymeric materials; sustainable materials; fire safety; green chemistry; biobased coatings; smoke suppression; char formation; multifunctional materials; polymer composites

(This special issue belongs to the Section Materials Chemistry)

New Insights into Porous Carbon Materials for a Sustainable Future

edited by

Dipendu Saha

submission deadline 31 Dec 2026 | Viewed by 499 | Submission Open

Keywords: porous carbon materials; biomass-derived carbon; waste-to-carbon; energy storage; carbon capture; supercapacitors; green synthesis; functionalized carbon; environmental applications

Advanced Materials for Efficient Sulfur Removal in Industrial and Environmental Applications

edited by

Adeniyi S. Ogunlaja

and Tendai O. Dembaremba

submission deadline 31 Dec 2026 | Viewed by 498 | Submission Open

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

Chemical Design of Nanocomposite Materials for Enhanced Electrochemical Performance

edited by

Panpan Dong

and Xingxing Jiao

submission deadline 31 Dec 2026 | Viewed by 486 | 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)

Chromatographic Methods for Monitoring Food Safety and Quality—Second Edition

edited by

José Bernal del Nozal

Victoria Samanidou

and

Ana M. Ares

submission deadline 31 Dec 2026 | Viewed by 481 | Submission Open

Keywords: antibiotics; bioactive compounds; chromatography; contaminants; food chemistry; food authentication; food quality; food safety; method validation; microplastics; pesticides; veterinary drugs

(This special issue belongs to the Section Analytical Chemistry)

Functional Carbon Materials from Biomass for Environmental Applications

edited by

Irma Robles

submission deadline 31 Dec 2026 | Viewed by 479 | Submission Open

Keywords: biomass-derived carbon; functional carbon materials; activated carbon; biochar; porous carbon; surface functionalization; structure-property relationships; biomass valorization; circular economy; environmental remediation; water treatment; adsorption and catalysis; electrocatalysis; green synthesis; sustainable materials

(This special issue belongs to the Section Materials Chemistry)

Advances in Anticancer Activity of Natural Compounds: New Findings and Potential Applications

edited by

Anna Lucia Tornesello

Laura Aracely Contreras-Angulo

and Melissa García-Carrasco

submission deadline 31 Dec 2026 | Viewed by 470 | Submission Open

Keywords: cancer; natural compound; drug discovery; bioactive compounds; encapsulation technology; molecular mechanisms; translational oncology; therapeutic applications

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

Medicinal Chemistry and Virology Together in the Service of Human Health: In Honor of Prof. Dr. Erik De Clercq on the Occasion of His 85th Birthday

edited by Libor Grubhoffer,

Daniel Růžek

and

Guangdi Li

submission deadline 31 Dec 2026 | 1 articles | Viewed by 466 | Submission Open

Keywords: antiviral agents; medicinal chemistry; virology; nucleoside/nucleotide analogs; HIV therapeutics; drug development

(This special issue belongs to the Section Medicinal Chemistry)

Extraction and Biological Evaluation of Active Substances in Food

edited by

Cinzia Ingallina

Donatella Ambroselli

and

Fabrizio Masciulli

submission deadline 31 Dec 2026 | 1 articles | Viewed by 463 | Submission Open

Keywords: bioactive compounds; food-derived active substances; extraction techniques; green extraction; food chemistry; natural products; phytochemicals; antioxidant activity; biological activity; functional foods; nutraceuticals; metabolomic profiling; bioavailability; in vitro bioassays; food bioactives

(This special issue belongs to the Section Food Chemistry)

Catalysis for Drug Discovery

edited by

Deyun Qian

submission deadline 31 Dec 2026 | Viewed by 452 | Submission Open

Keywords: organic synthesis; metal catalysis; organocatalysis; asymmetric catalysis; photocatalysis; electrocatalysis; drug discovery

(This special issue belongs to the Section Organic Chemistry)

Exploring Bioactive Polyphenolic Compounds in Food and Natural Real-World Samples, 3rd Edition

edited by

Francesco Cacciola

and Katia Arena

submission deadline 31 Dec 2026 | Viewed by 450 | Submission Open

Keywords: polyphenols; foods; natural products; comprehensive two-dimensional liquid chromatography

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

Molecular Spectroscopy and Molecular Structure

edited by

Yu Zhou

Zhiwu Yu

and Yukihiro Ozaki

submission deadline 31 Dec 2026 | Viewed by 449 | Submission Open

Keywords: molecular spectroscopy; molecular structure; applications in biological sciences; applications in materials science; molecular interaction; hydrogen bonds; methodological development; quantum chemical calculation

(This special issue belongs to the Section Photochemistry)

Displaying special issue 751-800 on page 16 of 28.

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