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Micromachines 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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Laser Shock Peening and Allied Processes to Improve Materials Strength

edited by Jan Brajer and

Pathak Sunil

submission deadline 31 Dec 2025 | 1 articles | Viewed by 743 | Submission Open

Keywords: laser shock peening; ultrasonic nanocrystal surface modification; residual stresses; plastic deformation; fatigue life; microstructure

(This special issue belongs to the Section E：Engineering and Technology)

Small-Scale Mechanical Behaviors in Advanced Engineering Materials

edited by

Ting Tsui

and Nitya Nand Gosvami

submission deadline 31 Dec 2025 | 1 articles | Viewed by 477 | Submission Open

Keywords: small-scale mechanical properties; nano-tribology and wear; nanoindentation and contact mechanics; chemical mechanical polish (CMP); mechanical wear in biomedical implant materials; biological cell adhesion on surfaces

(This special issue belongs to the Section D：Materials and Processing)

Magnetic Manipulation in Micromachines

edited by

Behrad Khamesee

submission deadline 31 Dec 2025 | Viewed by 293 | Submission Open

Keywords: micromanipulation; electromagnetic devices; permanent magnets; microrobotics; electromagnetic actuators

(This special issue belongs to the Section B：Biology and Biomedicine)

Metasurface-Based Devices and Systems

edited by

Giuseppe Brunetti

and

Muhammad Ali Butt

submission deadline 31 Dec 2025 | Viewed by 213 | Submission Open

Keywords: dielectric metasurface; imaging; sensing; communications technologies; beamforming; beamsteering; dielectric antenna

(This special issue belongs to the Section A：Physics)

Feature Papers of Micromachines in Additive Manufacturing 2025

edited by Reza Teimouri

submission deadline 31 Dec 2025 | Viewed by 193 | Submission Open

Keywords: novel applications of additive manufacturing; selective laser melting; hybrid additive manufacturing; laser powder bed fusion; laser-based additive manufacturing; metallic additive manufacturing; 3D printing

(This special issue belongs to the Section D3: 3D Printing and Additive Manufacturing)

Recent Developments in Electrical Discharge Machining Technology

edited by

Muhammad Pervej Jahan

submission deadline 31 Dec 2025 | 1 articles | Viewed by 193 | Submission Open

Keywords: micro-EDM; nano-EDM; hybrid EDM; parameter optimization; analytical modeling; process simulation; tool wear; difficult-to-cut material

(This special issue belongs to the Section D：Materials and Processing)

Celebration of 60th Anniversary of Moore's Law: The Significant Milestone in Micromachines

edited by

Sabina Merlo

Huikai Xie

and

Nam-Trung Nguyen

submission deadline 31 Dec 2025 | Viewed by 191 | Submission Open

Keywords: basic structures of MEMS ; applications of MEMS ; processes of MEMS; bio-MEMS and related fields ; integrated circuits; integrated photonic circuits; semiconductor devices; 2D semiconductor materials; complementary metal– oxide– semiconductor (CMOS); metal– oxide– semiconductor field-effect transistor (MOSFET); nanotransistor; photodetectors; quantum devices; finFETs

CMOS-MEMS Fabrication Technologies and Devices, 2nd Edition

edited by

Liangxing Hu

submission deadline 31 Dec 2025 | Viewed by 183 | Submission Open

Keywords: CMOS-MEMS fabrication technologies; CMOS; MEMS; CMOS-MEMS integration; 3D integration

(This special issue belongs to the Section A：Physics)

Selected Papers from the 26th EuroSimE Conference

edited by

Jiajie Fan

and Willem Van Driel

submission deadline 31 Dec 2025 | Viewed by 148 | Submission Open

Keywords: MEMS/NEMS; microelectronics microsystems reliability; simulation and modeling

(This special issue belongs to the Section A：Physics)

Micro-Energy Harvesting Technologies and Self-Powered Sensing Systems

edited by

Zhaozheng Wang

, Tianzhao Bu and

Jianhua Zeng

submission deadline 31 Dec 2025 | Viewed by 132 | Submission Open

Keywords: micro-energy harvesting; self-powered sensing; functional materials; micro fabrication; wearable devices

(This special issue belongs to the Section E：Engineering and Technology)

Droplet Microfluidic-Based Systems: Fundamentals, Applications, and Future Directions

edited by Wei Guo and Yage Zhang

submission deadline 31 Dec 2025 | Viewed by 117 | Submission Open

Keywords: microfluidics; droplet manipulations; high-throughput screening; microfabrications; biochemical assays; directed evolution

(This special issue belongs to the Section B：Biology and Biomedicine)

Innovations in 3D Printing Technologies: From Microfabrication to Functional Applications

edited by

Panagiotis Kyratsis

submission deadline 31 Dec 2025 | Viewed by 116 | Submission Open

Keywords: 3D printing technologies; additive manufacturing; artificial intelligence (AI) in 3D printing; sustainability in 3D printing; multi-material printing

(This special issue belongs to the Section D3: 3D Printing and Additive Manufacturing)

Microreactors for Chemical Applications

edited by

Yangcheng Lu

submission deadline 31 Dec 2025 | Viewed by 110 | Submission Open

Keywords: microreactor; chemical synthesis; chemical analysis; reaction; chemical process; process intensification; separation; chemical technology; chemical materials

(This special issue belongs to the Section C：Chemistry)

Soft Sensors and Soft Circuits: Design, Implementation and Applications

edited by

Lei Jing

and Tomohito Sekine

submission deadline 31 Dec 2025 | Viewed by 107 | Submission Open

Keywords: e-textiles; e-skin; soft robotics; wearable sensors; flexible and stretchable electronics; human– machine interfaces; conductive polymers; self-healing sensors; hydrogel-based sensors; skin-mountable devices

(This special issue belongs to the Section A：Physics)

Advances in Vacuum Nanoelectronics

edited by

John Xanthakis

submission deadline 31 Dec 2025 | Viewed by 102 | Submission Open

Keywords: nanoelectronics for X-ray sources; field emission displays; electron emitters for microscopy and lithography; vacuum transistors; thermoelectric energy conversion; photo-induced electron nanosources; nanoelectronics of THz technology; field emission and microplasma; modern theory of field emission and electron devices

(This special issue belongs to the Section A：Physics)

Advancing Energy Storage Techniques: Chemistry, Materials and Devices

edited by Yingmeng Zhang

submission deadline 31 Dec 2025 | Viewed by 101 | Submission Open

Keywords: energy storage and conversion devices; advanced materials; novel electrode design; cell engineering design; energy storage chemistry; energy storage mechanism; machine learning; multidisciplinary approaches

(This special issue belongs to the Section E：Engineering and Technology)

Microwave Passive Components, 3rd Edition

edited by

Lin Huang

, Weijie Wang,

Guoxiang Shu

and

Guo Liu

submission deadline 31 Dec 2025 | Viewed by 93 | Submission Open

Keywords: theory; modeling; fabrication; measurement and applications; microwave-; millimeter- and terahertz-wave passive component/devices applied in communication; radar and other systems; passive component/devices in antennas; filters; biosensors; vacuum electronic devices; pulse compressor; particle accelerator; etc.; other work related to microwave devices

(This special issue belongs to the Section E：Engineering and Technology)

Nanogenerators: Design, Fabrication and Applications

edited by Junqing Zhao and

Xiaojing Mu

submission deadline 31 Dec 2025 | Viewed by 82 | Submission Open

Keywords: nanogenerator; micro- and nano-manufacturing; nanotechnology; energy harvesting; nanoelectronics

(This special issue belongs to the Section A：Physics)

MEMS Sensors and Their Novel Breakthrough Applications

edited by Yu-Sheng Lin

submission deadline 31 Dec 2025 | Viewed by 68 | Submission Open

Keywords: MEMS sensors; microstructures; nanomaterials; nanophotonics; 2D materials; metamaterials; photonic integrated circuit; microfluidics; biochips; 3D printing

(This special issue belongs to the Section A：Physics)

Advances in Flexible and Wearable Electronics: Devices and Systems

edited by

Eun Gyo Jeong

submission deadline 31 Dec 2025 | Viewed by 54 | Submission Open

Keywords: flexible electronics; wearable devices; stretchable sensors; printed and hybrid electronics; low-power circuits and system integration; wireless communication for wearables; energy harvesting and self-powered systems; smart materials and nanostructures; biomedical applications

(This special issue belongs to the Section A：Physics)

Thin Film Deposition and Characterization in Micro- and Nano-Technology

edited by

Chih-Hao Lee

submission deadline 31 Dec 2025 | Viewed by 50 | Submission Open

Keywords: thin film deposition; thin film characterization; nanoprobe; nanotechnology

(This special issue belongs to the Section D：Materials and Processing)

Wearable Piezoelectric Sensors for Biomedical Applications

edited by

Ragu Sasikumar

and

Palraj Ranganathan

submission deadline 31 Dec 2025 | Viewed by 45 | Submission Open

Keywords: piezoelectric nanogenerators; wearable sensors; biomechanical motions; healthcare

(This special issue belongs to the Section A：Physics)

Ultrafast Laser Micro- and Nanoprocessing, 3rd Edition

edited by

Xin Zhao

submission deadline 31 Dec 2025 | Viewed by 37 | Submission Open

Keywords: ultrafast lasers; materials processing; nano- and microscale; laser– matter interaction; laser ablation; laser machining; surface texturing; two/multi-photon polymerization/reduction; beam/pulse shaping; numerical modeling

(This special issue belongs to the Section D：Materials and Processing)

Ultra-Precision Surface Abrasive Micro-Machining: Advances and Applications

edited by Fengjun Chen and Jianguo Zhang

submission deadline 31 Dec 2025 | Viewed by 30 | Submission Open

Keywords: abrasive; polishing; finishing; grinding

(This special issue belongs to the Section E：Engineering and Technology)

Microwave-Assisted Advanced Manufacturing Technologies

edited by

Nanya Li

submission deadline 31 Dec 2025 | Viewed by 29 | Submission Open

Keywords: 3D printing; additive manufacturing; microwave material process; biomedical engineering; advanced processing methods

(This special issue belongs to the Section E：Engineering and Technology)

MEMS and NEMS Sensors: Innovations, Applications, and Future Directions in Micro/Nano Technologies

edited by Meng Nie and

Kuibo Yin

submission deadline 31 Dec 2025 | Viewed by 28 | Submission Open

Keywords: MEMS/nano sensors; micro/nano nanotechnology; sensor technology; material innovations; wearable devices; nanoelectronics

(This special issue belongs to the Section A：Physics)

Magnetorheological Materials and Application Systems, Second Edition

edited by

Seung-Bok Choi

and

Miao Yu

submission deadline 31 Dec 2025 | Viewed by 28 | Submission Open

Keywords: magnetorheological materials; temperature effect; thermal conductivity; heat transfer

(This special issue belongs to the Section E：Engineering and Technology)

Gas Sensors: From Fundamental Research to Applications, 2nd Edition

edited by Pengfei Cheng

submission deadline 31 Dec 2025 | Viewed by 26 | Submission Open

Keywords: gas sensors; MEMS sensor arrays; gas sensors device applications; electronic nose system; micro- and nano-preparation; micro-control; semiconductor crystal structure

(This special issue belongs to the Section C：Chemistry)

Novel Surface and Bulk Acoustic Wave Devices, Second Edition

edited by Wei Luo, Chengjie Zuo,

Wen Wang

and Jian Zhou

submission deadline 31 Dec 2025 | Viewed by 26 | Submission Open

Keywords: surface acoustic waves; bulk acoustic waves; RF filters (Hybrid; SAW; BAW); acoustic wave sensors; RF-MEMS

(This special issue belongs to the Section A：Physics)

Micro/Nano Photonics and Metamaterials: From Research to Applications

edited by Fuxin Guan and Wange Song

submission deadline 31 Dec 2025 | Viewed by 25 | Submission Open

Keywords: metamaterials/metasurfaces; photonic integrated platform; topological and non-Hermitian physics; micro/nano-scale manufacturing techniques; time-varying media; nonlinear optical devices; complex media; photonic and phononic crystals

(This special issue belongs to the Section A：Physics)

Research Progress on Piezoelectric Energy Harvesting Devices

edited by

Min Wang

and

Junrui Liang

submission deadline 31 Dec 2025 | Viewed by 25 | Submission Open

Keywords: piezoelectrics materials and structures; novel ferroelectric and piezoelectric materials; vibration control and application; piezoelectric energy harvesting devices and systems

(This special issue belongs to the Section A：Physics)

Research Progress of Ultra-Precision Micro-Nano Machining, Second Edition

edited by

Huaizhong Li

and Xiubing Jing

submission deadline 31 Dec 2025 | Viewed by 21 | Submission Open

Keywords: ultra-precision machining; micro-nano machining; micro-nano chip formation; process modeling and simulation; process automation and optimization

(This special issue belongs to the Section D：Materials and Processing)

Micro/Nano Optical Devices and Sensing Technology

edited by

Zhidong Zhang

submission deadline 31 Dec 2025 | Viewed by 18 | Submission Open

Keywords: micro/nano optical devices; optical sensing; photonic crystals; plasmonic resonance; metasurfaces; micro/nano fabrication

(This special issue belongs to the Section A：Physics)

Current Research Progress in Microwave Metamaterials and Metadevices

edited by

Linda Shao

and

Xiaoguang Zhao

submission deadline 31 Dec 2025 | Viewed by 17 | Submission Open

Keywords: theory and modeling of metamaterials/metasurfaces; electromagnetic metamaterials/metasurfaces; reconfigurable metamaterials/metasurfaces; novel effects in microwave metadevices

(This special issue belongs to the Section D：Materials and Processing)

Advances in Nanophotonics: Physics, Materials, and Applications

edited by

Yi-Yu Cai

submission deadline 31 Dec 2025 | Viewed by 13 | Submission Open

Keywords: plasmonics; metamaterials; nanophotonics; self-assembly; single-particle spectroscopy

(This special issue belongs to the Section A：Physics)

Smart Biomaterials for Biofabrication: Design, Functionality, and Application

edited by

Shabir Hassan

submission deadline 31 Dec 2025 | Viewed by 11 | Submission Open

Keywords: smart biomaterials; biofabrication; tissue engineering; drug delivery; 3D bioprinting; minimally invasive implantation; AI-driven design

(This special issue belongs to the Section B2: Biofabrication and Tissue Engineering)

Microscale Biosensors Based on Smart Hydrogels and Soft Materials

edited by

Ye Tian

submission deadline 31 Dec 2025 | Viewed by 11 | Submission Open

Keywords: soft materials; hydrogel; biosensor; hydrogel sensing; flexible sensing

(This special issue belongs to the Section B1: Biosensors)

Photodetectors and Their Applications

edited by Jinfeng Han

submission deadline 31 Dec 2025 | Viewed by 3 | Submission Open

Keywords: photodetectors; flexible devices; materials; applications

(This special issue belongs to the Section A：Physics)

Wide-Bandgap Semiconductor Devices: Materials, Fabrication, and Applications, 2nd Edition

edited by Jie Su, Xi Jiang and Song Yuan

submission deadline 25 Jan 2026 | 1 articles | Viewed by 268 | Submission Open

Keywords: wide-bandgap semiconductor materials and devices; power semiconductor devices; semiconductor performance characterization; power electronics; semiconductor device fabrication; semiconductor device reliability

(This special issue belongs to the Section D1: Semiconductor Devices)

Nanomaterials for Energy Storage and Sensing Applications

edited by Claudia Cirillo and Mariagrazia Iuliano

submission deadline 25 Jan 2026 | Viewed by 5 | Submission Open

Keywords: nanomaterials; energy storage; sensing applications; nanostructures; functional nanomaterials; material synthesis; nanotechnology

(This special issue belongs to the Section D：Materials and Processing)

III-V Optoelectronics and Semiconductor Process Technology, Second Edition

edited by Hsin-Chu Chen, Hao-Chung Kuo and Yi-Jen Chiu

submission deadline 31 Jan 2026 | 1 articles | Viewed by 494 | Submission Open

Keywords: III-V semiconductor epitaxial growth and fabrication; optoelectronics and semiconductor devices; integration process technology; III-V materials applications

(This special issue belongs to the Section D1: Semiconductor Devices)

Recent Study and Progress in Micro/Nanorobots

edited by Fangzhou Xia and

Riko Šafarič

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

Keywords: miniaturized robot design and fabrication; precision instruments for nanotechnology; novel transducers for sensing/actuation; MEMS devices in micro/nanorobotics; smart material and physical intelligence; control and estimation at the micro/nanoscale; data-driven motion control on the nanoscale; nanoscale fabrication and characterization; swarm and collective behavior; nano/microrobots for biomedical applications

(This special issue belongs to the Section A：Physics)

Nanoparticle-Based (Bio)Sensors for Biomedical and Environmental Monitoring

edited by

Stella Girousi

and Dilsat Ozkan-Ariksoysal

submission deadline 31 Jan 2026 | Viewed by 44 | Submission Open

Keywords: nanoparticles; electrode modification; sensors; biomedical monitoring; environmental monitoring

(This special issue belongs to the Section D：Materials and Processing)

State-of-the-Art Memristor and Optoelectronic Memristor: Materials, Fabrication, Mechanism and Applications

edited by

Liyuan Long

submission deadline 31 Jan 2026 | Viewed by 11 | Submission Open

Keywords: memristor; optoelectronic memristor; synapse; neuromorphic computing; resistive switching; reconfigurable neuromorphic devices

(This special issue belongs to the Section D：Materials and Processing)

Advanced Micro- and Nano-Manufacturing Technologies for Flexible Electronics

edited by

Chenglin Li

and

Huihua Xu

submission deadline 31 Jan 2026 | Submission Open

Keywords: micro/nano-manufacturing; additive manufacturing; flexible electronics; wearable technology; soft actuators and sensors; roll-to-roll manufacturing; nanomaterials; modeling and design of manufacturing processes; artificial intelligence in manufacturing

(This special issue belongs to the Section E：Engineering and Technology)

Microsystems for Point-of-Care Testing and Diagnostics

edited by

Zulfiqur Ali

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1306 | Submission Open

Keywords: point-of-care testing/diagnostics; microfluidics; biosensors; wearables; digital microfluidics; paper-based diagnostics; lab-on-a-chip; rapid diagnostics; cancer detection; infectious and chronic diseases; data analytics; device fabrication

(This special issue belongs to the Section B4: Point-of-Care Devices)

GaN Heterostructure Devices: From Materials to Application, 2nd Edition

edited by Baijun Zhang

submission deadline 28 Feb 2026 | 1 articles | Viewed by 391 | Submission Open

Keywords: GaN heterostructure; optoelectronic devices; electronic devices; biosensor; THz devices; MEMS devices

(This special issue belongs to the Section D1: Semiconductor Devices)

DNA-Based Electrochemical Biosensors and Aptasensors: Advances in Medical Diagnostics and Detection

edited by

Van Thuan Nguyen

submission deadline 28 Feb 2026 | Viewed by 91 | Submission Open

Keywords: electrochemical biosensors; aptamer-based biosensor; aptasensors; medical diagnostics; point-of-care testing; biomarker detection; pathogen detection; DNA/RNA biosensors; nanotechnology-based sensors; biomedical applications; microfluidic integration; clinical diagnostics; rapid detection technologies; electrochemical detection methods

(This special issue belongs to the Section B1: Biosensors)

Biomedical Micro/Nanorobots: Design, Fabrication and Applications

edited by Chuang Zhang and