Special Issues

Processes 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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Innovative Bioreactor Design and Advanced Optimization Strategies for Biorefineries and Bioprocessing
edited by and Alexandros Pavlou
submission deadline 30 Nov 2025 | 6 articles | Viewed by 32929 | Submission Open
Keywords: bioreactor; photobioreactor; fermentation; biorefinery; bioprocessing; microbial production; monitoring and control; mathematical modeling and simulation; techno-economic assessment; life cycle analysis
(This special issue belongs to the Section Biological Processes and Systems)
Pharmaceutical Development and Bioavailability Analysis, 2nd Edition submission deadline 30 Nov 2025 | 10 articles | Viewed by 24780 | Submission Open
Keywords: preformulation and pharmaceutical formulation studies; bioavailability studies; drug– drug interactions; design of dosage forms; drug delivery system research and quality improvement; medicinal chemistry; structure– property correlations; binding affinity; radiopharmaceuticals; animal experimentation and clinical trials
(This special issue belongs to the Section Pharmaceutical Processes)
Development and Characterization of Advanced Polymer Nanocomposites
edited by and Faycal Znidi
submission deadline 30 Nov 2025 | 9 articles | Viewed by 20886 | Submission Open
Keywords: polymer nanocomposites; bionanocomposites; green polymer nanocomposites; characterization; additive manufacturing
(This special issue belongs to the Section Chemical Processes and Systems)
Additive Manufacturing of Materials: Process and Applications
edited by , Dege Li and
submission deadline 30 Nov 2025 | 5 articles | Viewed by 18551 | Submission Open
Keywords: additive manufacturing; metallic materials; non-metallic materials; process and applications; mechanism investigation
(This special issue belongs to the Section Materials Processes)
Processing and Quality Control of Agro-Food Products
edited by and Idaresit Ekaette
submission deadline 30 Nov 2025 | 6 articles | Viewed by 10021 | Submission Open
Keywords: non-thermal technologies; advanced thermal processing methods; electro-heating technologies; artificial intelligence; shelf-life extension; drying; storage; allergens; anti-nutrition; food security and sustainability; hybrid technologies
(This special issue belongs to the Section Food Process Engineering)
Applications of Ultrasound and Other Technologies in Food Processing submission deadline 30 Nov 2025 | 3 articles | Viewed by 9585 | Submission Open
Keywords: food science and technology; physical chemistry of food; artificial intelligence; computer vision; machine learning; sensometrics and consumer studies; sustainability of food agroecosystems; competitiveness processes in food chains
(This special issue belongs to the Section Food Process Engineering)
Novel Concepts for Future Biotechnology and Bioprocesses: Plants and Microorganisms for Sustainable Industries
edited by and Paola Magallón-Servín
submission deadline 30 Nov 2025 | 7 articles | Viewed by 9079 | Submission Open
Keywords: synthetic biology; metabolic engineering; microbiome engineering; photosynthetic biofactories; plant-based biomanufacturing; algal biotechnology; bioplastics production; precision fermentation; phytoremediation; phytochemical production
(This special issue belongs to the Section Biological Processes and Systems)
Advances in Smart Grids and Microgrids: Distributed Generation and Energy Storage Systems
edited by Yuzhou Zhou, , and Hang Shuai
submission deadline 30 Nov 2025 | 10 articles | Viewed by 8866 | Submission Open
Keywords: smart grids; multi-energy microgrids; operation optimization; planning and design; market designing
(This special issue belongs to the Section Energy Systems)
Advances in the Photocatalysis and Photodegradation of Various Contaminants Present in Water
edited by Manuel J. Chinchillas-Chinchillas, and Horacio Edgardo Garrafa-Gálvez
submission deadline 30 Nov 2025 | 3 articles | Viewed by 7958 | Submission Open
Keywords: photocatalysis; synthesis and characterization; photocatalysts; water pollutants; water treatment; environmental applications; sustainability
(This special issue belongs to the Section Chemical Processes and Systems)
Industry 4.0 and Industry 5.0: Simulators and Algorithms in Manufacturing Processes and Systems
edited by Wei Guo and Jiewu Leng
submission deadline 30 Nov 2025 | 8 articles | Viewed by 7348 | Submission Open
Keywords: Industry 4.0; Industry 5.0; smart manufacturing; digital twin; human– machine collaboration; industrial simulators; AI algorithms; cyber-physical systems (CPS); predictive maintenance; federated learning
(This special issue belongs to the Section Manufacturing Processes and Systems)
Synthesis and Applications of Nanomaterials
edited by
submission deadline 30 Nov 2025 | 5 articles | Viewed by 6587 | Submission Open
Keywords: nanomaterial; nanoparticle; nanostructure; self-assembly; nanoporous
(This special issue belongs to the Section Materials Processes)
Carbon Capture, Utilization, and Storage (CCUS) in Unconventional Oil and Gas submission deadline 30 Nov 2025 | 5 articles | Viewed by 6398 | Submission Open
Keywords: CCUS; Oil and gas reservoirs; EOR; EGR; CO2  storage
(This special issue belongs to the Section Energy Systems)
Processes in 2025
edited by
submission deadline 30 Nov 2025 | 5 articles | Viewed by 6253 | Submission Open
Keywords: chemical processes and systems; environmental and green processes; energy systems; process control and monitoring; biological processes and systems; catalysis enhanced processes; separation processes; particle processes; food process engineering; materials processes; automation control systems; manufacturing processes and systems; sustainable processes; AI-enabled process engineering; pharmaceutical processes
Fault Diagnosis Technology in Machinery Manufacturing submission deadline 30 Nov 2025 | 4 articles | Viewed by 3667 | Submission Open
Keywords: fault detection and diagnosis technology for machine manufacturing; vibration analysis for machine manufacturing; advances diagnostics techniques for machine manufacturing; neural networks methods for machine manufacturing; fault diagnosis methods for smart manufacturing; IoT-based monitoring and diagnostics of manufacturing systems; remote control and detection and detection technology for intelligent manufacturing; machine learning methods for machine manufacturing; applied artificial intelligence for fault detection and diagnosis technology for machine manufacturing; operational mode analysis for fault diagnostics and diagnostic for machine manufacturing
(This special issue belongs to the Section Manufacturing Processes and Systems)
Innovations in Manufacturing Processes and Systems for Sustainable Practices (2nd Edition)
edited by and Flávia Barbosa
submission deadline 30 Nov 2025 | 5 articles | Viewed by 3605 | Submission Open
Keywords: manufacturing processes; sustainable manufacturing; process optimization; automation; robotics; green manufac-turing; additive manufacturing (3D printing); energy-efficient processes; waste reduction; circular economy; chemical manufacturing; biological processes; material processing; pharmaceutical production; food engineering; Industry 4.0; digitalization; smart manufacturing systems; bio-based materials; green chemistry; advanced recycling methods
(This special issue belongs to the Section Manufacturing Processes and Systems)
Advances in Polymer Films and Coatings: Preparation, Characterization and Applications submission deadline 30 Nov 2025 | 2 articles | Viewed by 3412 | Submission Open
Keywords: polymer films; functional coatings; sustainable coatings; advanced characterization; smart coatings; bio-based polymers; drying and curing mechanisms; barrier properties; antimicrobial coatings; modeling and simulation of coatings
(This special issue belongs to the Section Materials Processes)
Hybrid Artificial Intelligence for Smart Process Control
edited by and Haruki Ueno
submission deadline 30 Nov 2025 | 7 articles | Viewed by 3388 | Submission Open
Keywords: Artificial Intelligence (AI); Machine Learning (ML); smart process control; industrial automation; data-driven process control; predictive analytics; deep learning; real-time data processing; control systems; Internet of Things (IoT)
(This special issue belongs to the Section Automation Control Systems)
Recent Advances in Efficient Contaminant Removal Technologies for Wastewater
edited by , Germán Giácoman-Vallejos and Adolfo Henríquez
submission deadline 30 Nov 2025 | 1 articles | Viewed by 3173 | Submission Open
Keywords: advanced oxidation processes; adsorption; sustainable solutions; nanomaterials; heavy metals; nutrients; pharmaceuticals; dyes; microplastics
(This special issue belongs to the Section Environmental and Green Processes)
Advancements in Photovoltaic Technologies: Innovations for Enhanced Energy Conversion and Efficiency submission deadline 30 Nov 2025 | 3 articles | Viewed by 2668 | Submission Open
Keywords: photovoltaic energy conversion; high-efficiency solar cells; emerging PV materials; thin-film photovoltaics; smart grid integration with PV; PV system advancements; scalable solar technologies
(This special issue belongs to the Section Energy Systems)
Improvement and Innovation in Engineering and Bioprocesses in Dairy Technology submission deadline 30 Nov 2025 | 2 articles | Viewed by 2664 | Submission Open
Keywords: dairy technology; dairy products; enzyme; biocatalysis; fermentation; sustainable technology; milk; whey; process biochemistry; membrane techniques
(This special issue belongs to the Section Food Process Engineering)
Advances in Hydrodynamics, Pollution and Bioavailable Transfers
edited by Weijie Wang, , and
submission deadline 30 Nov 2025 | 4 articles | Viewed by 2411 | Submission Open
Keywords: ecosystem; remediation of environmental pollutants; vegetation; green infrastructure; river; lake; wastewater
(This special issue belongs to the Section Environmental and Green Processes)
Advances in Water Resource Pollution Mitigation Processes
edited by and Aldo Saavedra
submission deadline 30 Nov 2025 | 3 articles | Viewed by 2338 | Submission Open
Keywords: circular economy; wastewater treatment; modelling; simulation; sustainable process; NBS; innovation; water pollution; membrane processes; valorization; nanotechnology
(This special issue belongs to the Section Environmental and Green Processes)
Synthesis, Catalysis and Applications of Organic Chemistry
edited by Steve D. Pollington
submission deadline 30 Nov 2025 | 2 articles | Viewed by 2102 | Submission Open
Keywords: green reagents; sustainability; organic synthesis; catalysis; applications
(This special issue belongs to the Section Chemical Processes and Systems)
Sustainable Waste Material Recovery Technologies
edited by and Gangasalam Arthanareeswaran
submission deadline 30 Nov 2025 | 2 articles | Viewed by 2046 | Submission Open
Keywords: sustainability; waste; carbon footprint; GHG; carbon capture; recovery; biohythane
(This special issue belongs to the Section Materials Processes)
Research on New Energy Carriers in Vehicles: Safety and Green Transition
edited by and Daniel Fruhwirt
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1899 | Submission Open
Keywords: NEC; road tunnels; safety; energy transition; fuels
(This special issue belongs to the Section Energy Systems)
Research Advances in Modeling, Optimization, and Control of Distributed Energy Systems
edited by Yskandar M. Hamam and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1837 | Submission Open
Keywords: renewable energy; optimal planning; optimal operation and control; distributed energy management; mixed energy sources; energy storage management.
(This special issue belongs to the Section Energy Systems)
Biomass Pyrolysis Characterization and Energy Utilization submission deadline 30 Nov 2025 | 2 articles | Viewed by 1513 | Submission Open
Keywords: biomaterials; polymer science; clean energy production; pyrolysis mechanisms; low-carbon technologies; circular bio-economies; physical chemistry; algorithm development; kinetic modeling; machine learning applications
(This special issue belongs to the Section Energy Systems)
Design, Fabrication, Modeling, and Control in Biomedical Systems
edited by Fulufhelo Nemavhola, Thanyani Pandelani and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1499 | Submission Open
Keywords: biomedical systems; medical device design; additive manufacturing in healthcare; computational modeling in biomedicine; control systems in biomedical applications; AI-driven biomedical engineering; finite-element analysis in healthcare; biocompatible materials; wearable and implantable devices; robotics in healthcare; digital twins in medicine; smart materials for medical applications; nanotechnology in biomedicine; cyber-physical systems in healthcare; internet of medical things (IoMT); human– machine interaction in medicine
(This special issue belongs to the Section Biological Processes and Systems)
Metal Complexes: Design, Properties and Applications
edited by Lidia Zapała, Elżbieta Woźnicka and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1280 | Submission Open
Keywords: metal complexes; design and synthesis; structural and spectroscopic properties; catalysis; biological and medicinal applications; green and sustainable chemistry; enzyme mimetics; drug development; bioinorganic chemistry; coordination chemistry; functional materials; environmental and toxicological studies; photocatalysis; molecular magnetism; supramolecular chemistry; electrochemical applications
(This special issue belongs to the Section Chemical Processes and Systems)
Hybrid Solar-Powered Heat Exchanger Systems: Innovations and Challenges submission deadline 30 Nov 2025 | Viewed by 1220 | Submission Open
Keywords: hybrid solar systems; heat exchangers; solar thermal energy; energy efficiency; renewable energy; phase change materials (PCMs); nanofluids; thermal performance; smart technologies; thermal storage solutions; industrial heating; residential heating
(This special issue belongs to the Section Energy Systems)
Preparation, Theoretical Modeling and Application of Inorganic Photoelectric Materials
edited by , Raúl Sánchez Zeferino, Rosendo Lopez Delgado and Alvaro Flores Pacheco
submission deadline 30 Nov 2025 | Viewed by 1198 | Submission Open
Keywords: inorganic semiconductors; photovoltaics; quantum dots and nanostructures; optoelectronic devices; solar cells; photodetectors; perovskite materials; thin-film technologies; light-emitting diodes (LEDs)
(This special issue belongs to the Section Materials Processes)
Biological and Pharmacological Activity of Natural Products submission deadline 30 Nov 2025 | Viewed by 1039 | Submission Open
Keywords: natural products; functional foods; green extraction; bioactive molecules; bioavailability; medicinal chemistry; combinatorial medicine; pharmacological activities; health disorders
(This special issue belongs to the Section Pharmaceutical Processes)
Innovative Materials and Technologies for Pollutants Removal and Green Energy Production and Storage
edited by Gabriela Soreanu, Igor Cretescu and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 912 | Submission Open
Keywords: air treatment; soil remediation; wastewater treatment; green energy; bio/electrochemical processes; life support systems; chemical and environmental process engineering
(This special issue belongs to the Section Environmental and Green Processes)
Sustainable and Intelligent Wearable Technologies: Design, Processes, and Applications
edited by , and Qian Zhang
submission deadline 30 Nov 2025 | Viewed by 701 | Submission Open
Keywords: sustainable fibers; nanofibers; polymers; composites; smart textiles; wearable technology; green manufacturing; energy harvesting; flexible devices; functional fashion design
(This special issue belongs to the Section Materials Processes)
High-Efficiency and High-Selectivity Processes of CO2 Conversion
edited by Mohammad Danish Khan, Preetam Kumar Sharma and
submission deadline 30 Nov 2025 | Viewed by 484 | Submission Open
Keywords: CO2 conversion; catalytic processes; electrochemical reduction; photocatalysis and biological conversion; novel materials and reactor engineering; renewable energy integration; circular chemical economy
(This special issue belongs to the Section Sustainable Processes)
Synthesis, Characterization and Functional Properties of Green Nanocomposites submission deadline 30 Nov 2025 | Viewed by 472 | Submission Open
Keywords: synthesis; characterization; nanocomposites; biopolymers; sustainability; functionalization; performance; degradation; applications
(This special issue belongs to the Section Materials Processes)
The Advances in Food Processing and Functional Food
edited by Bernardo Romão, Verônica Cortez Ginani and
submission deadline 30 Nov 2025 | Viewed by 438 | Submission Open
Keywords: food science; food industry; food microbiology; antioxidants; probiotics; food labels; nutrients; bioavailability
(This special issue belongs to the Section Food Process Engineering)
Chemical Composition and Antioxidant Properties in Unconventional Food Processes
edited by , and Diana Brito de Barros
submission deadline 30 Nov 2025 | Viewed by 370 | Submission Open
Keywords: unconventional foods; bioactive compounds; antioxidant properties; nutritional analysis; phytochemicals; free radical scavenging; health benefits; sustainable food systems; dietary diversity; food preservation; functional foods; nutritional supplements; food security; food waste treatments; circular economy; LCA
(This special issue belongs to the Section Food Process Engineering)
Development of New Processes for the Recovery of Metals from Waste Streams
edited by and Fatemeh Pourhossein
submission deadline 30 Nov 2025 | Viewed by 368 | Submission Open
Keywords: metal recovery; waste stream processing; critical raw materials; electronic waste; E-waste; sustainable processes; circular economy; supply chain risks; rare metal recovery; pyrometallurgy; acid waste management
(This special issue belongs to the Section Environmental and Green Processes)
Modeling Sustainable Processes—Aiming Towards Decarbonization in the Era of Artificial Intelligence
edited by and Hasan Sildir
submission deadline 30 Nov 2025 | Viewed by 252 | Submission Open
Keywords: process dynamics; mathematical modeling; process integration and optimization; chemical and biological processes; artificial intelligence; big data; sustainability
(This special issue belongs to the Section Chemical Processes and Systems)
Molecular Dynamics, Numerical Simulation and Integrated Method to Study Materials Processing and Manufacturing
edited by and
submission deadline 30 Nov 2025 | Viewed by 200 | Submission Open
Keywords: molecular dynamics simulations; numerical modeling; multi-scale modeling; computational materials science; manufacturing process optimization; integrated simulation techniques; microstructure evolution; phase transformations; multi-physics coupling; nanomanufacturing technologies
(This special issue belongs to the Section Manufacturing Processes and Systems)
New Trends in Thermal Energy Storage and Its Applications
edited by , Emre Artun and
submission deadline 30 Nov 2025 | Viewed by 180 | Submission Open
Keywords: thermal energy storage; phase-change materials; nano-enhanced materials; renewable energy; energy efficiency; sustainable energy solutions; design and optimization; practical applications
(This special issue belongs to the Section Energy Systems)
Advances in Enhanced Oil Recovery Processes
edited by Adolfo P. Pires and Dongmei Wang
submission deadline 30 Nov 2025 | Viewed by 168 | Submission Open
Keywords: enhanced oil recovery; flow in porous media; reservoir simulation; carbon capture; chemical flooding; miscible flooding; thermal flooding
(This special issue belongs to the Section Chemical Processes and Systems)
Synthesis and Application of Photocatalysts
edited by and Mali Zhao
submission deadline 30 Nov 2025 | Viewed by 134 | Submission Open
Keywords: photocatalysis; synthesis methods; solar energy conversion; environmental remediation; water splitting; CO2 reduction; sustainable chemistry; nanomaterials; heterostructured catalysts; photocatalytic applications; green chemistry; energy harvesting; metal– organic frameworks (MOFs)
(This special issue belongs to the Section Catalysis Enhanced Processes)
(Chemo)biocatalytic Upgrading of Biobased Chemicals and Materials
edited by and Bo Fan
submission deadline 30 Nov 2025 | Viewed by 113 | Submission Open
Keywords: biocatalysis; chemobiological upgrading; biomass pretreatment; value-added chemicals; biofuels; biorefinery; process integration
(This special issue belongs to the Section Catalysis Enhanced Processes)
Deep Eutectic Liquids in Chemical Engineering Processes: Extraction, Catalysis, Energy, and More
edited by
submission deadline 30 Nov 2025 | Viewed by 110 | Submission Open
Keywords: deep eutectic liquids (DELs); sustainable alternative; extraction efficiency; catalytic systems; electrochemical processes; material engineering; energy storage; biomaterial synthesis; separation processes; chemical engineering applications
(This special issue belongs to the Section Chemical Processes and Systems)
Selected Papers from the Sustainable Energy and Process Technologies Conference submission deadline 5 Dec 2025 | Viewed by 232 | Submission Open
Keywords: energy storage; energy carriers; biobased chemistry; electrification of the process industry; process intensification
(This special issue belongs to the Section Sustainable Processes)
Enzyme Production Using Industrial and Agricultural By-Products submission deadline 10 Dec 2025 | 6 articles | Viewed by 10583 | Submission Open
Keywords: biorefinery; waste valorization; economic analysis; solid fermentation; submerged fermentation; fungal enzymes; cellulolytic enzymes; lipases; amylases
(This special issue belongs to the Section Biological Processes and Systems)
Progress on Biomass Processing and Conversion submission deadline 10 Dec 2025 | 5 articles | Viewed by 8751 | Submission Open
Keywords: biomass conversion; energy production; methane; hydrogen; ethanol; pretreatment
(This special issue belongs to the Section Biological Processes and Systems)
Application of Enzymes in Sustainable Biocatalysis
edited by Carminna Ottone, and
submission deadline 10 Dec 2025 | 3 articles | Viewed by 6072 | Submission Open
Keywords: biocatalysis; immobilisation strategies; biorefinery; bioactive compounds; food waste valorization; climate change; biotechnology; bioenergy
(This special issue belongs to the Section Biological Processes and Systems)
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