Special Issues

Crystals 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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Structure-Based Drug Design and New Methodologies submission deadline 20 Oct 2026 | 1 articles | Viewed by 557 | Submission Open
Keywords: new drugs; noncovalent interactions; molecular recognition; supramolecular chemistry; PROTAC
(This special issue belongs to the Section Biomolecular Crystals)
Synthesis, Properties and Applications of Carbon Nanotubes
edited by Magdalena Kadlecikova
submission deadline 20 Oct 2026 | Viewed by 299 | Submission Open
Keywords: carbon nanotubes (CNTs); nanocomposites; metal catalyst; minerals; mine waste; Raman spectroscopy
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research on Functional Nanomaterials
edited by Erick L. Ribeiro, Zhen Zhang, and Gabriel Adolfo Cabrera-Pasca
submission deadline 20 Oct 2026 | Viewed by 274 | Submission Open
Keywords: nanomaterial synthesis and characterization; nanomaterials for energy and electronics; biomedical nanomaterials; magnetic nanomaterials; nanocatalysis; advanced nanostructures and hybrid nanocomposites; nanoscale surface functionalization; computational modeling of nanomaterials; data-driven materials discovery; optimization algorithms
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Characterization of Bio-Molecular Crystals
edited by
submission deadline 20 Oct 2026 | Viewed by 259 | Submission Open
Keywords: bio-molecular crystallization; microgravity crystallization; in-situ X-ray characterization; synchrotron crystallography; counter-diffusion growth; defect mapping; neutron crystallography; time-resolved structural biology
(This special issue belongs to the Section Biomolecular Crystals)
DFT-Guided Functional Materials submission deadline 20 Oct 2026 | Viewed by 258 | Submission Open
Keywords: electronic properties  ; DFT  ; graphene  ; heterostructure  ; 2D materials  ; sensors
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Functional Ferroelectric and Piezoelectric Crystals and Ceramics
edited by , and
submission deadline 20 Oct 2026 | Viewed by 100 | Submission Open
Keywords: ferroelectric; piezoelectric; dielectric; functional ceramics; sensors; actuators; transducers; energy harvesting
(This special issue belongs to the Section Polycrystalline Ceramics)
Crystalline COFs: Design and Applications
edited by , and Zhenyue Wu
submission deadline 31 Oct 2026 | Viewed by 204 | Submission Open
Keywords: crystal engineering; functional crystals; reticular chemistry; structure– function relationship; COF
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Research Progress in Pharmaceutical Crystallization
edited by Shuai Yu and
submission deadline 31 Oct 2026 | Viewed by 141 | Submission Open
Keywords: pharmaceutical crystallization; pharmaceutical polymorphism; morphology regulation; particle size control; physical pharmaceutics
(This special issue belongs to the Section Industrial Crystallization)
Advances in Electrocatalyst Materials for Sustainable Applications
edited by and César A. Zúñiga
submission deadline 10 Nov 2026 | 1 articles | Viewed by 1072 | Submission Open
Keywords: crystals; carbon nanomaterials; electrocatalysts; sustainability; circular; energy conversion devices; hydrogen economy; renewable sources
(This special issue belongs to the Section Materials for Energy Applications)
Computational Phase Stabilities and Phase Tailoring of Alternative and Sustainable Hard Magnetic Materials
edited by and Thorsten Klüner
submission deadline 10 Nov 2026 | 1 articles | Viewed by 456 | Submission Open
Keywords: hard magnetic materials; computational materials design; computational phase stability; sustainable magnets; rare-earth-free magnets; rare-earth-lean magnets; thermodynamic modeling; computational material discovery; materials informatics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Properties and Applications of 3D Printed Titanium Alloys
edited by
submission deadline 10 Nov 2026 | Viewed by 263 | Submission Open
Keywords: additive manufacturing; 3D printing; titanium and titanium alloys; performance; mechanical properties; corrosion resistance; fatigue behavior; surface characteristics; application; biomaterials
(This special issue belongs to the Section Crystalline Metals and Alloys)
Alloys in Additive Manufacturing and Welding: Microstructure and Properties
edited by
submission deadline 10 Nov 2026 | Viewed by 259 | Submission Open
Keywords: additive manufacturing; welding metallurgy; microstructure; mechanical properties; alloy design; thermal cycles
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystals in Biomineralization submission deadline 10 Nov 2026 | Viewed by 240 | Submission Open
Keywords: biomineralization; calcium carbonates; apatite; biological silicates; magnetite; pathological crystals; organic matrices; electron microscopy; X-ray scattering; AI applications
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Advances in Research on Single-Crystal Superalloys submission deadline 10 Nov 2026 | Viewed by 151 | Submission Open
Keywords: superalloys; single crystals; directional crystallization; superalloy manufacturing; high-temperature alloys; dendritic structure
(This special issue belongs to the Section Crystalline Metals and Alloys)
Physicochemical, Mechanical and Biological Properties of Nanocomposites submission deadline 15 Nov 2026 | Viewed by 158 | Submission Open
Keywords: nanocomposites; atomistic and hierarchical structure/architecture; biomaterial properties/biomedical applications; bioinspired materials
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Advances in Thin-Film Materials and Their Applications
edited by and Abdessamad Aouni
submission deadline 20 Nov 2026 | 6 articles | Viewed by 6819 | Submission Open
Keywords: thin-film materials; coatings; synthesis and growth; interfacial phenomena
(This special issue belongs to the Section Inorganic Crystalline Materials)
Transition Metal Complexes with Heterocyclic Ligands: Structural Insights, Biological Potential, and Computational Perspectives submission deadline 20 Nov 2026 | 4 articles | Viewed by 4139 | Submission Open
Keywords: antimicrobial activity; antiproliferative activity; drug development; DFT (density functional theory); in vitro studies; molecular docking; NMR spectroscopy; transition metal complexes; X-ray diffraction (XRD); heterocyclic scaffolds
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Innovations in Magnetic Composites: Synthesis to Application
edited by Izabella Crăciunescu
submission deadline 20 Nov 2026 | 3 articles | Viewed by 3537 | Submission Open
Keywords: magnetic nanomaterials; composites; hybrid nanostructures; magnetoresponsive systems; applications
Research on Electrolytes and Energy Storage Materials (2nd Edition)
edited by and Mengjie Chen
submission deadline 20 Nov 2026 | 2 articles | Viewed by 3182 | Submission Open
Keywords: electrolytes; energy storage materials; batteries; supercapacitors; lithium-ion batteries; solid-state electrolytes; charge– discharge mechanisms; green technology; sustainable materials; next-generation energy storage
(This special issue belongs to the Section Materials for Energy Applications)
Microstructure Characterization and Design of Advanced Alloys submission deadline 20 Nov 2026 | 2 articles | Viewed by 1955 | Submission Open
Keywords: advanced alloys; microstructure characterization; property optimization; multi-scale analysis; computational modeling
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advances in Electrocatalyst Materials
edited by and
submission deadline 20 Nov 2026 | 2 articles | Viewed by 1780 | Submission Open
Keywords: electrocatalysis; nanostructured Materials; metal-organic frameworks (MOFs); machine learning potentials (MLPs); density functional theory (DFT); microkinetic modelling; reaction mechanisms; sustainable energy conversion
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Wide Bandgap Semiconductor Materials
edited by Sanjie Liu, Xinhe Zheng, and
submission deadline 20 Nov 2026 | 1 articles | Viewed by 854 | Submission Open
Keywords: wide-bandgap semiconductor; crystal growth; MBE; CVD/MOCVD; HVPE; optoelectronics; power electronics; LED; UV; nanostructures; doping; defects; electron mobility; thermal conductivity
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Adsorbent Materials: Properties and Applications
edited by , Atul A. Pawar and
submission deadline 20 Nov 2026 | 1 articles | Viewed by 367 | Submission Open
Keywords: porous materials; sustainability; environmental remedies; energy; adsorption kinetics; 2D/3D materials; metal organic frameworks/zeolites/activated carbons; surface area; selectivity; bio adsorbents
(This special issue belongs to the Section Materials for Energy Applications)
Synthesis, Crystal Structures and Hirshfeld Surface Analysis of Coordination Compounds (4th Edition) submission deadline 20 Nov 2026 | Viewed by 207 | Submission Open
Keywords: coordination complexes; synthesis; crystal and molecular structure; hirschfeld surface analysis; non-covalent interactions
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Bridging the Embryonic Period for Disruptive Innovation in Crystal Growth
edited by
submission deadline 20 Nov 2026 | Viewed by 135 | Submission Open
Keywords: synthesis technique; growth technique; in situ evaluation; theoretical approach; solubility; interface; defect; diffusion
(This special issue belongs to the Section Crystal Engineering)
Pharmaceutical Cocrystals: Design, Stability, and Performance
edited by Larissa Bernardi and
submission deadline 20 Nov 2026 | Viewed by 109 | Submission Open
Keywords: pharmaceutical cocrystals; crystal engineering; drug solubility enhancement; solid-state pharmaceuticals
(This special issue belongs to the Section Industrial Crystallization)
Research on Single-Crystal Superalloys
edited by and
submission deadline 20 Nov 2026 | Viewed by 95 | Submission Open
Keywords: single-crystal superalloys; creep; solidification and casting; oxidation and corrosion; microstructure stability; additive manufacturing; thermal barrier coatings (TBCs); alloy design (computational/experimental); fatigue and fracture
(This special issue belongs to the Section Crystalline Metals and Alloys)
Laser Control of Creation and Growth of Crystals
edited by
submission deadline 20 Nov 2026 | Viewed by 54 | Submission Open
Keywords: glass crystallization; organic crystallization; three-dimensional direct writing technique; ultra-fast processes in optics; optical nonlinearities control in condensed matter; photosensitivity; polymorphism control; optical chirality control; laser-induced new crystalline phases
Microstructural Engineering in Powder Metallurgy and Additive Manufacturing Alloys
edited by José M. Mendoza-Duarte, and
submission deadline 10 Dec 2026 | Viewed by 497 | Submission Open
Keywords: aluminum-based alloys; metal matrix composites; high-energy ball milling; powder metallurgy; high frequency induction sintering; precipitation kinetics and phase transformations; high-frequency induction sintering; environmental adsorbents; microstructure– mechanical properties relationships
(This special issue belongs to the Section Crystalline Metals and Alloys)
Recent Advances in the Development and Application of Clay-Based Hybrid and Composite Materials submission deadline 10 Dec 2026 | Viewed by 328 | Submission Open
Keywords: clay functionalization and intercalation chemistry; structural and morphological characterization; organo-clay nanocomposites; chemical sensors and BioSensors; materials for 3D printing
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Synthesis, Preparation and Applications of Nanostructured Materials submission deadline 10 Dec 2026 | Viewed by 304 | Submission Open
Keywords: nanomaterials; nanostructures; nanomagnetism; nanodevices; smart nanomaterials; nanotechnology
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances and Expansion of Epitaxial Nitride-Based Materials
edited by , Robert A. Makin and
submission deadline 10 Dec 2026 | Viewed by 297 | Submission Open
Keywords: epitaxy; nitride; heterostructure; doping; electrical transport; magnetism; optical properties; machine learning; artificial intelligence
(This special issue belongs to the Section Inorganic Crystalline Materials)
Predictive Modelling of Inorganic Functional Materials: From Fundamentals to Device Applications
edited by
submission deadline 10 Dec 2026 | Viewed by 242 | Submission Open
Keywords: functional inorganic materials; optical materials; energy materials; interatomic potentials; density functional theory
(This special issue belongs to the Section Inorganic Crystalline Materials)
Organic Photonics: Organic Optical Functional Materials and Devices (2nd Edition)
edited by Yaoxing Bian, Xiaoyu Shi and Junhua Tong
submission deadline 10 Dec 2026 | Viewed by 116 | Submission Open
Keywords: micro- and nano-cavity lasers; random laser; light-emitting materials and devices; photophysics and spectroscopy for light-emitting materials; photodetection techniques; sensors; micro-nano structured organic semiconductor materials and devices; non-hermitian; parity– time symmetry; organic flexible driving material; organic smart material
(This special issue belongs to the Section Organic Crystalline Materials)
Functional Thin Films: Growth, Characterization, and Applications
edited by and Dominika Majchrzak
submission deadline 20 Dec 2026 | 4 articles | Viewed by 3773 | Submission Open
Keywords: functional and functionalized thin films; thin film growth and fabrication; 2D materials and layered structures; thin film characterization techniques; modeling and simulations of thin films; surface modification and interface engineering; functional thin films for catalysis; electronics; optics; sensors; coatings; biotechnology; medicine and micromechanical applications
(This special issue belongs to the Section Inorganic Crystalline Materials)
Microstructure, Properties and Characterization of Aluminum Alloys submission deadline 20 Dec 2026 | 2 articles | Viewed by 2100 | Submission Open
Keywords: aluminum alloys; microstructure evolution; mechanical properties; corrosion resistance; precipitation strengthening; advanced characterization; additive manufacturing; thermomechanical processing; phase transformation; structure– property relationships
(This special issue belongs to the Section Crystalline Metals and Alloys)
Electrochemical Preparation of Magnetic Materials
edited by Milica Spasojević Savković and
submission deadline 20 Dec 2026 | Viewed by 1683 | Submission Open
Keywords: electrodeposition; magnetization; electric properties; energy storage; electrochemistry
(This special issue belongs to the Section Materials for Energy Applications)
Polymeric Materials for Sustainable Catalysis and Energy Applications
edited by Salvatore Impemba, , and
submission deadline 20 Dec 2026 | 1 articles | Viewed by 1144 | Submission Open
Keywords: polymer; catalyst; biomass; energy; hydrogen; nanoparticles; electrocatalysis
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in Processing, Simulation and Characterization of Alloys (2nd Edition)
edited by , , Fuyu Dong and
submission deadline 20 Dec 2026 | 1 articles | Viewed by 1134 | Submission Open
Keywords: alloy design; process optimization; heat treatments; phase transformations; mechanical; anti-corrosion; soft magnetic and other properties; microstructural characterization; modeling and simulation; Finite Element Analysis (FEA)
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advances in the Growth and Application of Nitride Crystals
edited by
submission deadline 20 Dec 2026 | 1 articles | Viewed by 858 | Submission Open
Keywords: gallium nitride; aluminum nitride; boron nitride; crystal growth; substrate processing; hydride vapor phase epitaxy; flux method; high-pressure ammonothermal method; physical vapor transport; chemical mechanical polishing
(This special issue belongs to the Section Inorganic Crystalline Materials)
Raman Spectroscopy and Crystals: Classical Methods Bridging Modern Benchmarks
edited by and Gino Mariotto
submission deadline 20 Dec 2026 | Viewed by 199 | Submission Open
Keywords: Raman spectroscopy; crystalline materials; crystal structure; advanced characterization; ceramics; glass– ceramics; polymers; materials science
(This special issue belongs to the Section Inorganic Crystalline Materials)
Adsorption and Photocatalytic Materials for Environmental Remediation
edited by Ruimeng Wang, Jianmin Chen and
submission deadline 20 Dec 2026 | Viewed by 134 | Submission Open
Keywords: advanced functional materials; adsorption; photocatalysis; mechanistic studies; scalable manufacturing; environmental remediation
(This special issue belongs to the Section Organic Crystalline Materials)
Laser Metal Additive Manufacturing and Laser Welding Processes submission deadline 20 Dec 2026 | Viewed by 112 | Submission Open
Keywords: additive manufacturing; welding processes; microstructure optimization; mechanical properties; medium/high-entropy alloys; superalloys; defect control
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystallization of High-Performance Metallic Materials (3rd Edition)
edited by and
submission deadline 30 Dec 2026 | 4 articles | Viewed by 2876 | Submission Open
Keywords: solidification of steel and alloys; casting process; solid phase transformation; high-performance metallic materials; in situ characterization; nucleation and growth in metals; inclusion/precipitate engineering in steel and alloys; slag and flux engineering; thermodynamics and kinetics of crystallization; process– structure– property correlation in alloys
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advances in Optoelectronic Materials
edited by Mourad Boutahir and El Mehdi El Khattabi
submission deadline 31 Dec 2026 | 4 articles | Viewed by 2500 | Submission Open
Keywords: two-dimensional materials; DFT; CVD
(This special issue belongs to the Section Materials for Energy Applications)
Applications of Crystalline Materials in Elastocaloric Devices submission deadline 31 Dec 2026 | 2 articles | Viewed by 1502 | Submission Open
Keywords: elastocaloric; shape memory alloys; austenite– martensite transformations; solid-state cooling; solid-state heat pumping
(This special issue belongs to the Section Materials for Energy Applications)
Crystals: 15th Anniversary submission deadline 31 Dec 2026 | Viewed by 467 | Submission Open
Keywords: crystals; crystal growth; characterization techniques; crystalline; structure properties and applications of crystalline materials
Selected Papers from the 5th International Online Conference on Crystals submission deadline 31 Dec 2026 | Viewed by 239 | Submission Open
Keywords: inorganic crystalline materials; liquid crystals; organic crystalline materials; hybrid and composite crystalline materials; materials for energy applications; crystal engineering; crystalline metals and alloys
Research in Magnesium-Based Alloys
edited by Shifeng Luo, , Yan Wang and Xiao Lei
submission deadline 31 Dec 2026 | Viewed by 237 | Submission Open
Keywords: high-strength Mg alloys; thermal conductivity; texture; heterogeneous structure; LPSO phase; hot extrusion; dynamic recrystallization; creep
(This special issue belongs to the Section Crystalline Metals and Alloys)
Research on Biomedical Alloys, Biocompatible and Biodegradable Alloys
edited by
submission deadline 31 Dec 2026 | Viewed by 223 | Submission Open
Keywords: microstructure; corrosion; in vitro/in vivo analysis; biocompatible; biodegradable alloys
(This special issue belongs to the Section Crystalline Metals and Alloys)
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