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This book is a printed edition of the Special Issue “Energy Harvesters and Self-Powered Sensors for Smart Electronics” that was published in Micromachines, which showcases the rapid development of various energy harvesting technologies and novel devices. In the current 5G and Internet of Things (IoT) era, energy demand for numerous and widely distributed IoT nodes has greatly driven the innovation of various energy harvesting technologies, providing key functionalities as energy harvesters (i.e., sustainable power supplies) and/or self-powered sensors for diverse IoT systems. Accordingly, this book includes one editorial and nine research articles to explore different aspects of energy harvesting technologies such as electromagnetic energy harvesters, piezoelectric energy harvesters, and hybrid energy harvesters. The mechanism design, structural optimization, performance improvement, and a wide range of energy harvesting and self-powered monitoring applications have been involved. This book can serve as a guidance for researchers and students who would like to know more about the device design, optimization, and applications of different energy harvesting technologies.

Information technology industries --- energy harvesting --- vibration --- broadband --- resonant frequency --- piezoelectric vibration energy harvester --- low frequency --- wideband --- modeling --- energy harvester --- temperature threshold --- piezoelectricity --- vibrational cantilever --- bimetallic effect --- piezoelectric --- optimization --- pattern search --- FEM --- PZT --- electromagnetic --- hybrid energy harvester --- power density improvement --- piezoelectric energy harvester --- tandem --- vortex-induced vibration --- flowing water --- vibration energy harvesting --- electromagnetic generator (EMG) --- nonlinear --- magnetic coupling --- high performance --- diamagnetically stabilized levitation --- Taguchi method --- stable levitation --- maximum gap --- electromagnetic energy harvester --- human body kinetic energy --- n/a

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CAD/CAM/CAE technologies find more and more applications in today’s industries, e.g., in the automotive, aerospace, and naval sectors. These technologies increase the productivity of engineers and researchers to a great extent, while at the same time allowing their research activities to achieve higher levels of performance. A number of difficult-to-perform design and manufacturing processes can be simulated using more methodologies available, i.e., experimental work combined with statistical tools (regression analysis, analysis of variance, Taguchi methodology, deep learning), finite element analysis applied early enough at the design cycle, CAD-based tools for design optimizations, CAM-based tools for machining optimizations.

topology management optimization --- radial basis function neural network --- polyester coating --- wear --- cutting torque --- graphite --- disk to disk test --- friction behavior --- SOLIDWORKS --- fatigue --- ball burnishing --- surface topography --- radial impeller --- analysis of variance (ANOVA) --- induction hardening --- numerical simulation --- milling --- Taguchi method --- CAD teaching --- gear reducer housings --- mechanical post-treatment --- multi-layer perceptron --- power transmission --- drilling --- thrust force --- finite element analysis --- open-source CAD software --- teaching/learning strategies --- friction --- solid lubricants particles --- Al6082-T6 --- licensed CAD --- adaptive neuro-fuzzy inference system --- computer-aided manufacturing (CAM) --- molybdenum disulfide --- CNC machining --- multiple regression --- Grey analysis --- pattern design

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The use of medical devices (e.g., catheters, implants, and probes) is a common and essential part of medical care for both diagnostic and therapeutic purposes. However, these devices quite frequently lead to the incidence of infections due to the colonization of their abiotic surfaces by biofilm-growing microorganisms, which are progressively resistant to antimicrobial therapies. Several methods based on anti-infective biomaterials that repel microbes have been developed to combat device-related infections. Among these strategies, surface coating with antibiotics (e.g., beta-lactams), natural compounds (e.g., polyphenols), or inorganic elements (e.g., silver and copper nanoparticles) has been widely recognized as exhibiting broad-spectrum bactericidal or bacteriostatic activity. So, in order to achieve a better therapeutic response, it is crucial to understand how these infections are different from others. This will allow us to find new biomaterials characterized by antifouling coatings with repellent properties or low adhesion towards microorganisms, or antimicrobial coatings that are capable of killing microbes approaching the surface, improving biomaterial functionalization strategies and supporting tissues’ bio-integration.

Medicine --- Candida --- biofilms --- diabetes --- medical devices --- candidiasis --- metabolic disorder --- hyperglycemia --- infection --- Candida glabrata --- candidemia --- echinocandins --- resistance --- micafungin --- caspofungin --- in vivo --- titanium dioxide --- nanotubes --- autoclaving --- titanium alloy --- biocompatibility --- wettability --- mechanical properties --- silver nanoparticles --- titanium dioxide nanotubes --- silver ions release --- biointegration --- antimicrobial activity --- polyethylene terephthalate --- PET --- electrospinning --- nanofibers --- antimicrobial agents --- Taguchi method --- antimicrobial efficiency --- cold atmospheric-pressure plasma jet (CAPJ) --- Escherichia coli --- DNA double-strand breaks --- scanning electron microscopy --- Ti6Al4V implants --- anodization process --- XPS --- genotoxicity assessment --- anti-inflammatory properties --- oral biofilm --- infection control --- Streptococcus mutans --- Candida spp. --- natural compounds --- antimicrobial resistance --- n/a

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Plasma electrolytic oxidation (PEO), also known as micro-arc oxidation (MAO), functionalizes surfaces, improving the mechanical, thermal, and corrosion performance of metallic substrates, along with other tailored properties (e.g., biocompatibility, catalysis, antibacterial response, self-lubrication, etc.). The extensive field of applications of this technique ranges from structural components, in particular, in the transport sector, to more advanced fields, such as bioengineering. The present Special Issue covers the latest advances in PEO‐coated light alloys for structural (Al, Mg) and biomedical applications (Ti, Mg), with 10 research papers and 1 review from leading research groups around the world.

Research & information: general --- Technology: general issues --- magnesium --- plasma electrolytic oxidation --- SiO2 particle --- corrosion resistance --- wear resistance --- micro arc oxidation (MAO) --- Cu nano-layer --- hydrophilic surface --- apatite --- in vitro bioactivity --- antibacterial properties --- PEO --- LDH --- active protection --- corrosion --- aluminium --- biodegradable implants --- magnesium alloy --- micro-arc oxidation --- Taguchi method --- SBF --- in-vivo test --- biodegradability --- plasma electrolytic oxidation (PEO) --- aluminum 6082 --- luminescent coatings --- phosphorescence --- anodized aluminum --- Mott-Schottky analysis --- defect --- annealing --- titanium dioxide --- anatase and rutile --- surface treatment --- wear --- medical engineering --- aluminum --- titanium --- Al7075 alloy --- aluminum oxide --- molten salt --- microhardness --- radio frequency magnetron sputtering (RFMS) --- calcium-phosphate (CaP) coating --- n/a

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This book covers three major topics, specifically Biomimetic Robot Design, Mechanical System Design from Bio-Inspiration, and Bio-Inspired Analysis on A Mechanical System. The Biomimetic Robot Design part introduces research on flexible jumping robots, snake robots, and small flying robots, while the Mechanical System Design from Bio-Inspiration part introduces Bioinspired Divide-and-Conquer Design Methodology, Modular Cable-Driven Human-Like Robotic Arm andWall-Climbing Robot. Finally, in the Bio-Inspired Analysis on A Mechanical System part, research contents on the control strategy of Surgical Assistant Robot, modeling of Underwater Thruster, and optimization of Humanoid Robot are introduced.

Technology: general issues --- humanoid robot --- energy efficiency --- Taguchi method --- snake robot --- driving assistant mechanism --- slope --- dynamic analysis --- cable-driven robots --- human-like robotic arms --- human–robot interactions --- stiffness adjustment --- cable tension analysis --- bio-inspired robot --- micro aerial vehicle --- flapping mechanism --- azimuth thruster --- thruster modeling --- signal compression method --- frequency response analysis --- empirical modeling --- wall-climbing robot --- gear transmission --- bionic spine --- electron microscope images --- 3D printing technology --- surgical assistant robot --- remote center motion --- direct teaching --- impedance control --- soft robot --- soft jumping robot --- soft morphing --- residual stress --- magnetic yield point --- curved lever --- lever design methodology --- variable pivot of lever --- n/a --- human-robot interactions