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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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Next-Generation Nanomaterials for Water Treatment: From Design to Application

edited by Haisheng Tao

submission deadline 15 Aug 2026 | Viewed by 45 | Submission Open

Keywords: rational design; characterization; structure-property relationship; functional nanomaterials; contaminant removal; water purification

(This special issue belongs to the Section Materials Chemistry)

Organic Luminescent Materials: Synthesis, Mechanism, and Applications

edited by Xiaonan Ma and Jianyu Zhang

submission deadline 15 Aug 2026 | Viewed by 38 | Submission Open

Keywords: organic luminescent materials; molecular design; chemical synthesis; photophysics; excited-state dynamics; OLED displaying; bio-imaging; sensing

(This special issue belongs to the Section Materials Chemistry)

Functional Evaluation of Bioactive Compounds from Natural Sources, 2nd Edition

edited by

Kuniyoshi Shimizu

and

Yhiya Amen

submission deadline 16 Aug 2026 | 7 articles | Viewed by 19516 | Submission Open

Keywords: bioactive compounds; natural sources; functional evaluation; biological activities; health benefits; mechanisms of action; bioactivity; phytochemicals

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

Advances in Dyes and Photochromics

edited by

Jose Antonio Gonzalez Delgado

Agostina-Lina Capodilupo

and

Jesús F. Arteaga

submission deadline 16 Aug 2026 | 2 articles | Viewed by 1860 | Submission Open

Keywords: photochromic compounds; green chemistry; molecular engineering; smart materials; environmental monitoring; electronic textiles; light-responsive materials; functional dyes; optical data storage; biomedical applications

(This special issue belongs to the Section Photochemistry)

Analysis of Natural Volatile Organic Compounds (NVOCs)

edited by

Igor Jerković

submission deadline 30 Aug 2026 | 3 articles | Viewed by 1962 | Submission Open

Keywords: volatile organic compounds; essential oils; headspace; terpene; norisoporenoid and phenylpropane derivatives; aliphatic compounds; gas chromatography

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

Droplet Chemistry: Superwetting, Evaporation and Applications

edited by

Ruoyang Chen

Xiaoguang Li

and

Panagiotis Theodorakis

submission deadline 30 Aug 2026 | Viewed by 161 | Submission Open

Keywords: superwetting; evaporation control; droplet manipulation; evaporation dynamics

(This special issue belongs to the Section Physical Chemistry)

Porphyrin-Based Molecules: From Synthesis to Structure–Activity Relationships and Applications

edited by Prashanth K. Poddutoori

submission deadline 30 Aug 2026 | Viewed by 75 | Submission Open

Keywords: porphyrin; phthalocyanine; corrole; borondipyrromethane; synthesis; photophysics; electrochemistry; energy transfer; electron transfer; solar energy conversion; photodynamic therapy; molecular electronics; photonics; and catalysis

(This special issue belongs to the Section Organic Chemistry)

Biobased Materials for Tissue Engineering

edited by

Carlos David Grande Tovar

submission deadline 31 Aug 2026 | 3 articles | Viewed by 11120 | Submission Open

Keywords: biobased materials; biopolymers; scaffold development; tissue engineering; regenerative therapy; cell culture; stem cell therapy; drug delivery; hydrogels; wound dressing

(This special issue belongs to the Section Materials Chemistry)

Bioproducts for Health, 4th Edition

edited by

María Emilia Brassesco

Ezequiel Coscueta

and

Manuela Pintado

submission deadline 31 Aug 2026 | 3 articles | Viewed by 5008 | Submission Open

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

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

Bio-Based and Natural Compounds: A Sustainable Approach for an Environmental Transition

edited by

Marco Zannotti

and

Rita Giovannetti

submission deadline 31 Aug 2026 | 2 articles | Viewed by 4954 | Submission Open

Keywords: bio-based materials; green materials; environmental application; natural compounds; characterization; sustainability

(This special issue belongs to the Section Green Chemistry)

Discovery of Microbial Natural Products

edited by

Yun Kwon

and

Sang-Jip Nam

submission deadline 31 Aug 2026 | 3 articles | Viewed by 4469 | Submission Open

Keywords: microbial natural products; determination of structure; microorganism; drug candidate; bioactive secondary metabolites; microbial biotechnology

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

Synthesis of Nanomaterials and Their Applications in Biomedicine—2nd Edition

edited by

Nefeli Lagopati

submission deadline 31 Aug 2026 | 1 articles | Viewed by 3487 | Submission Open

Keywords: nanomaterials; biomaterials; synthesis; characterization; diagnosis; treatment; cytotoxicity; biocompatibility

(This special issue belongs to the Section Materials Chemistry)

Functional Materials for Small Molecule Electrocatalysis

edited by

Feng Hu

, Linlin Li and Qingxue Lai

submission deadline 31 Aug 2026 | 2 articles | Viewed by 2967 | Submission Open

Keywords: electrocatalysis; nanomaterials; electrochemical conversion of H2O; CO2 and N2

(This special issue belongs to the Section Nanochemistry)

Emerging Horizons of Hyperpolarization in Chemistry and Biomedicine

edited by

Roman Shchepin

submission deadline 31 Aug 2026 | 3 articles | Viewed by 2609 | Submission Open

Keywords: hyperpolarization; NMR; MRI; low cost; SABRE; PHIP; d-DNP; isotopic enrichment

Design and Application Based on Versatile Nano-Composites: Second Edition

edited by

Jingang Yu

submission deadline 31 Aug 2026 | 2 articles | Viewed by 2395 | Submission Open

Keywords: nanoparticles; nanosheets; composites; preparation; application

(This special issue belongs to the Section Nanochemistry)

Determination of Trace Heavy Metals and Metalloids in Environmental and Food Samples, 3rd Edition

edited by

and Claude F. Boutron

submission deadline 31 Aug 2026 | 2 articles | Viewed by 1881 | Submission Open

Keywords: environmental analytical chemistry; food analytical methods; trace heavy metals and metalloids; chemical speciation; instrumental analysis; new analytical methods and techniques; sample pre-treatment; extreme environments; reviews; emerging environmental issues; emerging food issues; food and “ novel foods” ; insects; climate change and biogeochemical cycles of trace heavy metal(loid)s

(This special issue belongs to the Section Analytical Chemistry)

Chemical Composition and Biological Activity of Essential Oils and Other Extracts: From Extraction to Application Second Edition

edited by

Kristina Ložienė

submission deadline 31 Aug 2026 | 1 articles | Viewed by 1631 | Submission Open

Keywords: medicinal and aromatica plant resources; plant extracts; essential oils; secondary metabolites; chromatography; mass spectrometry; bioactivity; synergism; application

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

Applications of Solid-Phase Microextraction and Related Techniques, the Second Edition

edited by

Hiroyuki Kataoka

submission deadline 31 Aug 2026 | 1 articles | Viewed by 1323 | Submission Open

Keywords: solid-phase microextraction; micriextraction techniques; extraction sorbents; pharmaceutical analysis; forensic analysis; bioanalysis; environmental analysis; food analysis

(This special issue belongs to the Section Analytical Chemistry)

Cross-Coupling Strategies for the Synthesis of Functionalized Organic Compounds

edited by Xiaobo Pang and Han-jun Ai

submission deadline 31 Aug 2026 | 1 articles | Viewed by 1191 | Submission Open

Keywords: cross-coupling; transition metal catalysis; palladium catalysis; copper catalysis; nickel catalysis; C– N bond formation; C– C bond formation; photoredox; electrochemistry; organic synthesis; functionalized molecules; catalytic mechanisms; green chemistry

(This special issue belongs to the Section Organic Chemistry)

Modern Application of Cycloaddition Reactions: Experimental and Theoretical Research

edited by

Agnieszka Kącka-Zych

and Patricia Perez

submission deadline 31 Aug 2026 | 1 articles | Viewed by 1165 | Submission Open

Keywords: cycloaddition reactions; molecular electron density theory; density functional theory; reaction mechanism; organic synthesis; bioactive compounds; biological activity of heterocyclic compounds

(This special issue belongs to the Section Organic Chemistry)

Surface Modification of Materials and Their Applications

edited by

Yi Zhang

submission deadline 31 Aug 2026 | 1 articles | Viewed by 351 | Submission Open

Keywords: chemical functionalization; surface modification; catalysis; biotechnology; advanced manufacturing; environment

(This special issue belongs to the Section Materials Chemistry)

Molecular Strategies for the Synthesis of Drug-Like Bioactives

edited by

Beatrice Severino

and

Antonia Scognamiglio

submission deadline 31 Aug 2026 | Viewed by 280 | Submission Open

Keywords: drug-like bioactives; synthetic methodologies; green chemistry; multitarget ligands; PROTACs; molecular glues; biocatalysis; scaffold design; late-stage functionalization

(This special issue belongs to the Section Medicinal Chemistry)

Isolation and Structure Determination of Bioactive Natural Products, Third Edition

edited by

Aleksandra Szydłowska-Czerniak

submission deadline 31 Aug 2026 | Viewed by 226 | Submission Open

Keywords: primary and secondary plant metabolites; sample preparation methods; hyphenated analytical methods; natural product research; measuring biological activity; structure– activity relationships

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

Next-Generation Deep Eutectic Solvents for Sustainable Synthesis and Electrochemical Application

edited by

Maiyong Zhu

submission deadline 31 Aug 2026 | Viewed by 223 | Submission Open

Keywords: deep eutectic solvents; electrosynthesis; energy storage/conversion; chemical synthesis; wearable electronic devices; computation methods

(This special issue belongs to the Section Green Chemistry)

Synthesis, Properties, and Applications of Perovskite Nanocrystals and Their Composites

edited by

Qinggang Zhang

and Weilin Zheng

submission deadline 31 Aug 2026 | Viewed by 205 | Submission Open

Keywords: perovskite nanocrystals; composite nanomaterials; novel synthetic strategies; photoluminescence properties; stability enhancement mechanisms; perovskite LED; photovoltaics; other optoelectronic devices

(This special issue belongs to the Section Nanochemistry)

Natural and Synthetic Bioactive Compounds in Food—Risks and Benefits

edited by

Andreas Eisenreich

submission deadline 31 Aug 2026 | Viewed by 153 | Submission Open

Keywords: bioactive compounds; health; safety; effects; toxicology; biology; food; feed

(This special issue belongs to the Section Medicinal Chemistry)

Recent Advances in Lipid Peroxidation: Mechanisms and Inhibitors

edited by

Zijun Wu

submission deadline 31 Aug 2026 | Viewed by 141 | Submission Open

Keywords: lipid autoxidation; peroxyl radical; redox biology; oxidative stress; antioxidant; ferroptosis

(This special issue belongs to the Section Medicinal Chemistry)

Covalent Organic Frameworks for Photocatalysis or Fluorescence Detection

edited by

Long Hao

and Bing Han

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

Keywords: covalent organic framework (COF); photocatalysis; water splitting; CO2 reduction; H2O2 production; fluorescence detection

(This special issue belongs to the Section Photochemistry)

Design, Synthesis, and Application of Functional Nanomaterials in Environmental Analysis and Agriculture Protection

edited by

Jiangjiang Gu

submission deadline 31 Aug 2026 | Viewed by 128 | Submission Open

Keywords: functional nanomaterials; environmental analytical chemistry; environmental pollutants; agriculture protection; abiotic and biotic stress; response mechanisms; analytical techniques

(This special issue belongs to the Section Materials Chemistry)

Natural Products and Their Derivatives with Applications in Health and Diseases

edited by

Jih-Jung Chen

and

Sin-Min Li

submission deadline 31 Aug 2026 | Viewed by 127 | Submission Open

Keywords: natural products; medicinal plants; bioactive compounds; biological activity; mechanism of action; drug development; dietary supplements; healthy food

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

Antioxidant Properties of Bioactive Compounds from Plants

edited by

Dimitra Hadjipavlou-Litina

Ioannis Fotopoulos

and

Olga Tsiftsoglou

submission deadline 31 Aug 2026 | Viewed by 109 | Submission Open

Keywords: reactive oxidant species; antioxidant protocols; antioxidant compounds; factors of influence; diseases

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

Self-Assembly in Supramolecular Chemistry: From Fundamentals to Applications

edited by

Jiong Zhou

and Jiarui Wu

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

Keywords: supramolecular self-assembly; macrocyclic hosts; stimuli-responsive systems; host– guest chemistry; functional materials; supramolecular chemistry

Recent Advances in Nucleic-Acid Based Drugs Development

edited by

Daniela Perrone

Maria Luisa Navacchia

and

Elena Marchesi

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

Keywords: nucleic acids; oligonucleotide synthesis; modified nucleic acids; therapeutic applications; gene expression regulation; precision medicine; undruggable target

(This special issue belongs to the Section Medicinal Chemistry)

Radiolabeled Nanoparticles: Molecular Design, Targeting, Therapy, and Imaging

edited by Yuichiro Kadonaga and

Kazuma Ogawa

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

Keywords: synthesis of radiolabeled nanoparticles; biological evaluation of radiolabeled nanoparticles; theranostics; drug delivery; surface modification of nanoparticles; structural analysis; nuclear medicine; organic chemistry; inorganic chemistry

(This special issue belongs to the Section Nanochemistry)

Advances in Targeted Delivery of Nanomedicines, 2nd Edition

edited by

Sreejesh Sreedharan

submission deadline 31 Aug 2026 | Viewed by 87 | Submission Open

Keywords: nanomedicines; drug delivery; target delivery; nanoscience; cancer signaling

(This special issue belongs to the Section Medicinal Chemistry)

Antioxidants from Natural Sources: Current Status and Future Perspective

edited by

Vasiliki Lagouri

submission deadline 31 Aug 2026 | Viewed by 87 | Submission Open

Keywords: natural antioxidants; bioactive compounds; plant extracts; oxidative stress; green extraction; functional foods

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

Antimicrobial Properties of Natural Products—Third Edition

edited by

Raphaël E. Duval

submission deadline 31 Aug 2026 | Viewed by 85 | Submission Open

Keywords: natural products; extracts; fractions; purified compounds; antimicrobial properties; bacteria; virus; fungi

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

30th Anniversary of Molecules—Recent Advances in Green Chemistry

edited by

M. Gilles Mailhot

submission deadline 31 Aug 2026 | Viewed by 83 | Submission Open

Keywords: green catalysts; green extraction and processing; chemistry based on natural products; bio-based solvents with sub- and super-critical fluids; microwave and ultrasound; organic reaction in green solvents; bioconversion of biomass and sustainable biomaterials; creating fine chemicals and polymers from renewable resources; green nanotechnology; green analytical chemistry; green degradation process

(This special issue belongs to the Section Green Chemistry)

Catalytic Materials from Wastes for Environmental Pollution Control

edited by

Jorge Sambeth

, Maria Victoria Gallegos and Franco Dubois

submission deadline 31 Aug 2026 | Viewed by 82 | Submission Open

Keywords: waste valorization; heterogeneous catalysis; environmental remediation; circular economy; sustainable energy

(This special issue belongs to the Section Materials Chemistry)

New Sights in Stereoselective Synthesis

edited by

Maurizio Benaglia

Fabrizio Medici

and Francesca Franco

submission deadline 31 Aug 2026 | Viewed by 78 | Submission Open

Keywords: asymmetric synthesis; organocatalysis; metal-based catalysts; chiral reagents; enzymatic reactions; synthesis in alternative biodegradable solvents; light-driven reactions; biocatalysis; electrochemical organic synthesis; continuous flow reactions

(This special issue belongs to the Section Organic Chemistry)

Advancing Next-Generation Technologies with MXenes, 2nd Edition

edited by Asif Shahzad and

Tej B. Limbu

submission deadline 31 Aug 2026 | Viewed by 76 | Submission Open

Keywords: MAX phase; 2D MXene; MXene derivatives and heterostructures; fluoride-free synthesis; energy storage; EMI; catalysis; water purification; bottom-up approaches; hybrid systems

(This special issue belongs to the Section Materials Chemistry)

Metal Organic Frameworks (MOFs): Current Advances and Future Perspectives

edited by Bhausaheb Dhokale

submission deadline 31 Aug 2026 | Viewed by 74 | Submission Open

Keywords: metal– organic frameworks (MOFs); porous materials; catalysis; gas storage; drug delivery; hybrid materials; post-synthetic modification

(This special issue belongs to the Section Materials Chemistry)

Environmentally Friendly Technologies for Waste Processing and Recovery

edited by

Qingjun Guan

and Shuang Zhou

submission deadline 31 Aug 2026 | Viewed by 73 | Submission Open

Keywords: green waste processing; resource recovery; industrial by-products; impurity removal; waste-to-resource conversion; sustainable materials; circular economy; environmentally friendly technologies

(This special issue belongs to the Section Green Chemistry)

Exploring Agri-Food By-Products: From Novel Extraction to Bioactive Properties

edited by

Branimir Pavlic

submission deadline 31 Aug 2026 | Viewed by 67 | Submission Open

Keywords: agri-food by-products; bioactive compounds; novel extraction methods; phytochemicals; antioxidant properties

(This special issue belongs to the Section Food Chemistry)

Novel Strategies in Drug Discovery of Parasitic Diseases

edited by

Rafael Balana-Fouce

and

Celia Fernández-Rubio

submission deadline 31 Aug 2026 | Viewed by 61 | Submission Open

Keywords: parasitic diseases; drug discovery; antiparasitic agents; drug resistance; molecular targets; natural products; computational drug design; drug repurposing

(This special issue belongs to the Section Medicinal Chemistry)

Advanced Adsorbent Materials for Environmental Applications

edited by

Angelo Fenti

and

Pasquale Iovino

submission deadline 31 Aug 2026 | Viewed by 59 | Submission Open

Keywords: advanced adsorbents; MOFs/COFs and porous carbons; PFAS and emerging contaminants; adsorption mechanisms and kinetics; regeneration and stability; hybrid processes (photocatalysis and membranes); green synthesis

(This special issue belongs to the Section Applied Chemistry)

Lipids and Surfactants in Drug Discovery, Development and Delivery Systems

edited by

Katarina Nikolić

and

Marija Popovic-Nikolic

submission deadline 31 Aug 2026 | Viewed by 57 | Submission Open

Keywords: micelles; liposomes; micro- and nano-emulsions; solubility; physicochemical and pharmacokinetic properties; drug design; controlled release; drug discovery; drug development

(This special issue belongs to the Section Medicinal Chemistry)

Peptide and Protein Folding

edited by

Yuji Hidaka

Mahesh Narayan

and

Michio Iwaoka

submission deadline 31 Aug 2026 | Viewed by 56 | Submission Open

Keywords: peptide structure and dynamics; disulfide bond formation; folding pathways and intermediates; protein stability and misfolding; machine learning in structural biology

(This special issue belongs to the Section Chemical Biology)

Microwave and Ultrasound Technologies in Chemical Reactions

edited by