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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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Piezoelectric Micro-/Nano Systems: Global Breakthroughs and Future Prospects

edited by Yunlai Shi

submission deadline 30 Apr 2026 | Viewed by 60 | Submission Open

Keywords: piezoelectric actuator; piezoelectric motor; piezoelectric pump; piezoelectric transducer; piezoelectric energy harvesting; piezoelectric stacks; piezoelectric jets; unimorph; bimorph; amplified piezoelectric actuator; inchworm actuator; inertial actuator; ultrasonic actuator; ultrasonic motor; ultrasonic consolidation

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

Novel Flexible Electronic/Semiconductor Materials and Devices: Recent Research and Applications

edited by Dan Han,

Yijie Gu

and Hui Zheng

submission deadline 30 Apr 2026 | Viewed by 56 | Submission Open

Keywords: sensors; NEMS; MEMS; flexible wearable device; energy conversion and storage; health applications; environmental applications; food applications; semiconductor materials and devices; optoelectronic synaptic devices

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

High-Sensitivity Fiber-Optic Sensors: From Design to Applications

edited by Tao Geng and

Feng Peng

submission deadline 30 Apr 2026 | 1 articles | Viewed by 56 | Submission Open

Keywords: optical fiber sensing; optical glass waveguide; fibre-optical sensors and applications; sensor demodulation; biochemical sensor; chemical sensor; micro-structured fiber; micro– nano lasers

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

Energy Conversion and Storage Devices

edited by

Jing Xu

submission deadline 30 Apr 2026 | Viewed by 55 | Submission Open

Keywords: energy conversion devices; energy storage devices; photovoltaic devices; batteries; artificial intelligence; machine learning

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

Plasma Assisted Techniques for Micro/Nano Fabrication

edited by Mubarak Mujawar

submission deadline 30 Apr 2026 | Viewed by 54 | Submission Open

Keywords: MEMS and microfabrication; plasma-assisted material synthesis and processing; plasma sources and plasma diagnostics; plasma surface interaction; plasma chemistry

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

Advances in Design and Application of Electrochemical Sensors

edited by Anurag Adiraju and

Olfa Kanoun

submission deadline 30 Apr 2026 | Viewed by 47 | Submission Open

Keywords: electrochemical sensors; sensor systems; sensor technologies; sensor applications; novel and sustainable materials and fabrication procedures; electronic tongue; hybrid sensing platforms

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

Microdevices for Microorganism and Micropollutant Detection

edited by

Junsheng Wang

and Xuan Weng

submission deadline 30 Apr 2026 | Viewed by 42 | Submission Open

Keywords: microdevices; microorganism detection; micropollutant sensing; microfluidics; lab-on-a-chip

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

Electrokinetic and Electrochemical Phenomena in Microsystems

edited by

Mengqi Li

and

Chengfa Wang

submission deadline 30 Apr 2026 | Viewed by 27 | Submission Open

Keywords: electrokinetics; microfluidics and nanofluidics; colloid and interface; electrochemical sensor; biosensor

(This special issue belongs to the Section C1: Micro/Nanoscale Electrokinetics)

Advances in Acoustic and Vibration MEMS

edited by Junhong Li and Qingqing Fan

submission deadline 30 Apr 2026 | Viewed by 13 | Submission Open

Keywords: MEMS microphones; microspeakers; MEMS hydrophones; micromachined ultrasonic transducers; film bulk acoustic resonators; microaccelerometers; piezoelectric film; magnetostrictive film

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

Gas Sensors and Electronic Noses

edited by

Murat Kabatas

and

Issam Boukhoubza

submission deadline 15 May 2026 | Viewed by 22 | Submission Open

Keywords: electronic nose; gas sensor; gas sensing mechanisms; nanostructures; two-dimensional (2D) materials; metal oxide semiconductors (MOSs)

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

Adaptive Micro-Optics and Tunable Lenses for Miniaturized Imaging Systems

edited by

Yang Cheng

submission deadline 20 May 2026 | Viewed by 31 | Submission Open

Keywords: adaptive micro-optics; tunable lenses; liquid lenses; MEMS-based mirrors; metalens; Alvarez lenses; miniaturized imaging systems

(This special issue belongs to the Section A1: Optical MEMS and Photonic Microsystems)

Advanced Optoelectronic Materials/Devices and Their Applications

edited by

Jing Wei

and

Fangze Liu

submission deadline 25 May 2026 | 1 articles | Viewed by 757 | Submission Open

Keywords: optoelectronic materials; device architecture; perovskite photovoltaics; flexible/wearable optoelectronics; stability; scalability; single crystal

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

Microfluidics for Cells and Other Organisms, 4th Edition

edited by

Danny van Noort

submission deadline 25 May 2026 | Viewed by 54 | Submission Open

Keywords: microfluidics; bacteria; cells; cell cultures; tissue; organisms; single-cell detection

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

Acoustic Transducers and Their Applications, 3rd Edition

edited by Songsong Zhang,

Qiaozhen Zhang

and

Liang Lou

submission deadline 30 May 2026 | 1 articles | Viewed by 684 | Submission Open

Keywords: acoustic transducers and their design; simulation; testing; and characterization; piezoelectric MEMS device; thin-film piezoelectric materials and material properties; MEMS integration process; acoustic modules; algorithms; circuits; and systems; acoustic lenses and meta-surfaces; acoustic transducer arrays and their applications; implementation and usage of acoustic devices for various applications

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

Novel Magneto-Electronic Devices and System Applications

edited by

Changqiu Yu

and

Jin Li

submission deadline 30 May 2026 | Viewed by 150 | Submission Open

Keywords: magneto-electronic devices; spintronic devices; magnetic sensors; data storage; low power; functional materials; shielding design for magnetic-electronic devices; nanoelectronic systems (nanoparticle technologies); organic electronic memory devices; spin-based optoelectronic devices

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

Design and Characterization of Microwave/Millimeter Wave Devices and Semiconductor Devices

edited by Jiangtao Su and Wei Liu

submission deadline 30 May 2026 | Viewed by 71 | Submission Open

Keywords: nonlinear device and circuit models; advanced time/frequency-domain measurement systems ; microwave and mmWave circuits; AI/ML-driven modeling and designing techniques; EDA and ETA techniques; semiconductor devices

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

Fiber Bragg Grating Sensors and Their Application

edited by

Jing Wang

and

Zhengkun Yi

submission deadline 30 May 2026 | Viewed by 56 | Submission Open

Keywords: Fiber Bragg Grating; optical fiber sensor; flexible sensor; biosensor; healthcare

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

Low-Power Electronics and System Integration for Next-Generation Computing

edited by Lei Wang

submission deadline 30 May 2026 | Viewed by 32 | Submission Open

Keywords: nanotechnology; low-power electronics; energy-efficient circuits; energy scavenging; in-memory computing; 3D architectures; non-Von Neumann architectures; embedded AI systems

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

Optical and Laser Material Processing, 2nd Edition

edited by

Yuankun Lin

and Yuzhe Xiao

submission deadline 31 May 2026 | 7 articles | Viewed by 8165 | Submission Open

Keywords: material-based micro/nanostructures and devices; optical and laser material processing; optical- and laser-based nano/micro-fabrication; two-dimensional and bulk material processing

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

Research Progress in Energy Harvesters and Self-Powered Sensors

edited by

Yaoguang Shi

and

Weiqiang Zhang

submission deadline 31 May 2026 | 1 articles | Viewed by 1614 | Submission Open

Keywords: thermoelectric; triboelectric; photovoltaic; piezoelectric; energy harvester; self-powered sensors

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

Advanced Manufacturing Technology and Systems, 4th Edition

edited by Guochao Li, Zhaoju Zhu and

Youqiang Xing

submission deadline 31 May 2026 | 2 articles | Viewed by 742 | Submission Open

Keywords: additive manufacturing; machining and forming technology; micro- and nanofabrication; smart manufacturing; non-traditional manufacturing processes; energy-efficient manufacturing; computer-integrated manufacturing systems; process monitoring; AI for manufacturing; system optimization; system reliability analysis

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

Low-Dimensional Materials and Applications in Electronics

edited by

Haozhe Wang

and

Shengman Li

submission deadline 31 May 2026 | 1 articles | Viewed by 332 | Submission Open

Keywords: 2D materials; 1D materials; zero-dimensional systems; electronic; optoelectronic; MXene; characterization techniques; field-effect transistors; memory devices; biosensors; high-frequency and terahertz electronics; semiconductor technology

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

Micro/Nanofabrication of 2D Materials and Devices

edited by

Martin Lee

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

Keywords: 2D materials; thin-films; graphene; exfoliation; transfer; (MO)CVD; PLD; MBE; growth; etching; deposition; van der Waals assembly; devices; sensors; condensed matter physics; lithography; nanofabrication; nano patterning; pattern transfer; 2D integration

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

Optoelectronic Integration Devices and Their Applications

edited by

Binfeng Yun

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

Keywords: optoelectronic integration; integrated optical signal processing; integrated photonic sensing; integrated microwave photonics; integrated optical computing

(This special issue belongs to the Section A1: Optical MEMS and Photonic Microsystems)

Electrochemical Microsensors: Pioneering Solutions for Health and Sustainability

edited by

Kenneth E. Madsen

submission deadline 31 May 2026 | Viewed by 72 | Submission Open

Keywords: electrochemical sensors; microsensors; analytical chemistry; biosensing; point-of-care; environmental sensing; sustainability

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

Materials and Devices for Advanced Thermal Energy Harvesting and Management

edited by Amin Nozariasbmarz

submission deadline 31 May 2026 | Viewed by 69 | Submission Open

Keywords: thermoelectric materials and devices; waste heat recovery; thermal management; body power harvesting; thermoelectric generators; thermoelectric coolers; thermal energy harvesting; phase change materials; thermomagnetic materials; pyroelectric materials

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

Two-Dimensional Materials and Van der Waals Heterostructures: Devices and Applications

edited by Junhui Yuan and Yunlai Zhu

submission deadline 31 May 2026 | Viewed by 64 | Submission Open

Keywords: 2D materials; van der Waals heterostructures; field-effect transistors; photodetectors; sensors; energy storage; optoelectronics

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

Wide and Ultrawide Bandgap Semiconductors: Materials, Devices, and Applications

edited by Fangpei Li and

Wenbo Peng

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

Keywords: wide/ultrawide bandgap; power semiconductor device; Schottky barrier diode; VDMOSFET; physical sensors; chemical sensors

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

Piezoelectric Materials, Devices, and Integrated Systems: From Fundamentals to Applications

edited by

Tianlong Zhao

Dongdong Chen

and

Di Li

submission deadline 31 May 2026 | Viewed by 37 | Submission Open

Keywords: piezoelectric materials; piezoelectric devices; integrated circuits; integrated systems; mathematical models; optimization algorithms; intelligent design; advanced processes; 3D integration

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

Recent Advances in Fiber Optic Biosensor

edited by

Xuegang Li

and

Wei Wang

submission deadline 31 May 2026 | Viewed by 29 | Submission Open

Keywords: fiber-optic biosensor design; micro/nano-fabrication; fiber photometry; real-time diagnostics; label-free detection; implantable biosensor; flexible wearable sensors; minimally invasive sensing; real-time diagnostics; fiber-optic theranostics

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

Intelligent RF Microsystems for Next-Generation Communication and Sensing

edited by Lei Sang and

Paulo Mateus Mendes

submission deadline 31 May 2026 | Viewed by 27 | Submission Open

Keywords: microsystems; wireless sensors; intelligent RF systems

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

Microrobots: Design, Fabrication and Application

edited by

Hao Zhang

submission deadline 31 May 2026 | Viewed by 25 | Submission Open

Keywords: microrobots; microfabrication; actuation mechanisms; biomedical microrobots; lab-on-a-chip

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

Diamond Devices: Design, Fabrication and Applications

edited by

Guo Chen

and Zilong Zhang

submission deadline 31 May 2026 | Viewed by 23 | Submission Open

Keywords: diamond devices; MEMS/NEMS; power electronics; optoelectronics; sensors

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

Carbon Based Electronic Devices: Recent Advances and Future Challenges

edited by

Fendrych Katarzyna

and

Katarzyna Jedlińska

submission deadline 31 May 2026 | Viewed by 21 | Submission Open

Keywords: carbon-based materials; graphene; carbon nanotubes; organic semiconductors; quantum dots; flexible electronics; sensors; transistors; energy storage and conversion; optoelectronic devices

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

Light-Driven Manipulation and Optoelectronic Tweezers: From Optomechanics to Micro/Nano-Robotics

edited by Hani Barhum,

Mohammad Attrash

and Toms Salgals

submission deadline 31 May 2026 | Viewed by 17 | Submission Open

Keywords: light-driven manipulation; optoelectronic tweezers; optomechanics; micro/nano-robotics; micro/nano-particles

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

MEMS Inertial Device, 3rd Edition

edited by

Huiliang Cao

submission deadline 20 Jun 2026 | Viewed by 42 | Submission Open

Keywords: MEMS inertial device; MEMS inertial device controlling method; inertial device signal processing; MEMS inertial device modeling and simulation; MEMS gyroscope; MEMS accelerometer

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

Preparation, Manipulation, and Biomedical Applications of Micro/Nanodroplets/Fluids

edited by Xing Han and

Jiaqian Li

submission deadline 30 Jun 2026 | 1 articles | Viewed by 694 | Submission Open

Keywords: droplets; microfluidics; biomedical applications; droplet preparation; micro/nanoscale

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

GaN-Based Materials and Devices: Research and Applications, 2nd Edition

edited by Wei Liu and Kun Wang

submission deadline 30 Jun 2026 | 1 articles | Viewed by 629 | Submission Open

Keywords: group III-nitrides semiconductors; epitaxial growth and fabrication; Al(In)GaN heterostructure; polarization and piezoelectric effect; nanostructures for wide bandgap materials; RF and power devices; display and illumination applications; novel design concepts; device simulation

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

Nanoparticles in Tissue Engineering and Regenerative Medicine

edited by

Dong Kee Yi

Sitansu Sekhar Nanda

and

Seong Soo A. An

submission deadline 30 Jun 2026 | Viewed by 216 | Submission Open

Keywords: nanoparticle; TERM; scaffold; bone diseases; biomaterials

(This special issue belongs to the Section B3: Nanoparticles in Biomedicine)

Electrokinetic Principles in Biological and Biomedical Systems

edited by Gongchen (GC) Sun

submission deadline 30 Jun 2026 | Viewed by 117 | Submission Open

Keywords: electrokinetics; micro/nanofluidics; electrophoresis; dielectrophoresis; electroosmosis; ion concentration polarization; charge separation; membrane potential; electrotaxis; cell signaling

(This special issue belongs to the Section C1: Micro/Nanoscale Electrokinetics)

AI-Driven Biofabrication: Accelerating Design, Optimization, and Translation

edited by

Miriam Filippi

submission deadline 30 Jun 2026 | Viewed by 111 | Submission Open

Keywords: biofabrication; machine learning; artificial intelligence; predictive modeling; high-throughput experimentation; simulation-based design; process optimization; scalability; sustainable engineering; material design; cell behavior prediction

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

Microfluidics-Based Drug Screening and Delivery Technology

edited by

Ciprian Iliescu

and

Florina Silvia Iliescu

submission deadline 30 Jun 2026 | Viewed by 77 | Submission Open

Keywords: microfluidics; micro and nanotechnology; drug delivery; drug screening; drug carriers; microphysiological systems; transdermal drug delivery; microneedles; personalized medicine

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

Power Semiconductor Devices and Integration Technology

edited by Jie Wei

submission deadline 30 Jun 2026 | Viewed by 73 | Submission Open

Keywords: high voltage devices; low voltage devices; power IC device technology; power IC design; wide bandgap semiconductor (GaN; SiC; GaO; and so on)

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

Additively Manufactured Microchannels: Microfluidics and Microscale Thermal Management

edited by

Pamela Vocale

submission deadline 30 Jun 2026 | Viewed by 73 | Submission Open

Keywords: additive manufacturing; microchannel geometry optimization; innovative microchannel geometries; microscale thermal management; heat transfer enhancement; microfluidics

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

Next-Generation Biomedical Devices

edited by Kyowon Kang and

Hee-Jae Jeon

submission deadline 30 Jun 2026 | Viewed by 52 | Submission Open

Keywords: wearable devices; implantable devices; neuromorphic devices; organ-on-chip; biosensors; wireless communication; energy harvesting; low-power biomedical devices; bioelectronic integrated circuits; physiological sensing; physiological stimulation

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

Emerging Technologies and Applications for Semiconductor Industry

edited by

Nian Cai

, Han Wang and

Zuyong Wang

submission deadline 30 Jun 2026 | Viewed by 49 | Submission Open

Keywords: emerging semiconductor materials; advanced processing and fabrication techniques; materials for semiconductor devices; semiconductor material characterization; sustainability and recycling; semiconductor components and equipment; semiconductor testing and metrology

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

Recent Progress in Biosensors for Clinical Diagnostics, Food Quality Control, and Environmental Monitoring

edited by

Viktoriya Pyeshkova

submission deadline 30 Jun 2026 | Viewed by 28 | Submission Open

Keywords: electrochemical biosensors; nanostructured materials; biosensor systems; point-of-care diagnostics; wearable and implantable biosensors; microfluidics and lab-on-chip devices; machine learning in biosensing; biosensor applications in healthcare; food safety; and environmental monitoring

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

Critical Materials and Components for High-Performance Magnetic Encoders in Robotics and Unmanned Systems

edited by