Acetylcholinesterase Inhibitors Assay Using Colorimetric pH Sensitive Strips and Image Analysis by a Smartphone by Adam Kostelnik, Alexander Cegan, Miroslav Pohanka

“…Measurement procedure was performed on 3D printed holder and digital photography was evaluated using red-green-blue (RGB) channels. …”
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Frequency-Tunable Electromagnetic Absorber by Mechanically Controlling Substrate Thickness by Heijun Jeong, Manos M. Tentzeris, Sungjoon Lim

“…In order to mechanically control the substrate thickness, we introduce a 3D-printed molding with air space. The proposed structure consists of two layers and one frame: the FR4 substrate, polylactic acid (PLA) frame, and air substrate. …”
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Challenges and Innovations in Alveolar Bone Regeneration: A Narrative Review on Materials, Techniques, Clinical Outcomes, and Future Directions by Diana Marian, Giuseppe Toro, Giovanbattista D’Amico, Maria Consiglia Trotta, Michele D’Amico, Alexandru Petre, Ioana Lile, Anca Hermenean, Anca Fratila

“…Personalized treatments, like customized 3D-printed scaffolds, show promise in enhancing bone formation and tissue compatibility. …”
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A polysaccharide-based hydrogel platform for tumor spheroid production and anticancer drug screening by Elliot Lopez-Vince, Teresa Simon-Yarza, Claire Wilhelm

“…To ensure micro-structuring of the hydrogel and enable spheroid formation, 3D printed molds consisting of a network of 200-µm-diameter micropillars were used to generate microstructured hydrogel constructs that fit into a multi-well plate. …”
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RETRACTED: A Newly-Designed Wearable Robotic Hand Exoskeleton Controlled by EMG Signals and ROS Embedded Systems by Ismail Ben Abdallah, Yassine Bouteraa

“…In this study, a new design of electromyography (EMG)-controlled 3D-printed hand exoskeleton is presented. The exoskeleton was created to help stroke victims with their gripping abilities. …”
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Microelectrothermoforming (μETF): one-step versatile 3D shaping of flexible microelectronics for enhanced neural interfaces by Dong Hyeon Lee, Younghoon Park, Yoon Seo, Hannah Noh, Hyunbeen Jeong, Jongmo Seo, Min-Ho Seo, Kyungsik Eom, Joonsoo Jeong

“…We propose a one-step fabrication of MEAs with versatile microscopic 3D structures via “microelectrothermoforming (μETF)” of thermoplastics, by utilizing 3D-printed molds to locally deform planar MEAs into protruding and recessing shapes. …”
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Five-Axis Printing of Continuous Fibers on the Mold by Paweł Michalec, Marius Laux, Gidugu Lakshmi Srinivas, Robert Weidner, Mathias Brandstötter

“…The proposed five-axis printing technique overcomes these issues by enabling precise fiber orientation and the production of robust spatial structures using 3D-printed molds compatible with CFRTPCs. Validation through three-point bending and surface quality tests revealed that five-axis printed cylindrical-lattice samples, with fibers oriented at 45°, exhibited superior mechanical properties and surface quality. …”
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Digital and physical re-creation of ancient Chinese bells: new understandings and discoveries by Kin Sum Li

“…This article proposes to re-create bells in enlarged and reduced sizes through casting, based on 3D-printed resin models that have been correspondingly scaled up and down, from a 3D model scanned from a 500 BCE bell that was excavated from Xinzheng in Henan province, China. …”
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Myelin ensheathment and drug responses of oligodendrocytes are modulated by stiffness of artificial axons. by Mingyu Yang, Calliope J L Martin, Kavin Kowsari, Anna Jagielska, Krystyn J Van Vliet

“…To this end, we previously developed artificial axons (AAs), a biocompatible platform consisting of 3D-printed hydrogel-based axon mimics designed to more closely recapitulate the micrometer-scale diameter and sub-kilopascal mechanical stiffness of biological axons. …”
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APPLICATION OF OCCLUSAL SPLINTS IN THE DIGITAL ERA: A SERIES OF THREE CASE REPORTS by Lenka Vavrickova, Jan Schmidt, Hana Hubalkova, Doriana Agop Forna, Martin Kapitan

“…The first case involves a 65-year-old male bruxist treated with a 3D-printed Muscle Relaxation Appliance to alleviate muscular facial pain and restore vertical dimension occlusion. …”
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Optofluidic paper-based analytical device for discriminative detection of organic substances via digital color coding by Jinsol Choi, Chi Yeung Oh, Gong Qian, Tae Soup Shim, Heon-Ho Jeong

“…We fabricate an optofluidic PAD by integrating two coding units into a three-dimensional (3D) microfluidic paper within a 3D-printed cartridge. The optofluidic PADs clearly distinguish 11 organic chemicals with digital readout of pattern recognition from colorimetric signals. …”
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Microfluidic mixing probe: generating multiple concentration-varying flow dipoles by Dima Samer Ali, Ayoub Glia, Pavithra Sukumar, Muhammedin Deliorman, Mohammad A. Qasaimeh

“…Abstract This study advances microfluidic probe (MFP) technology through the development of a 3D-printed Microfluidic Mixing Probe (MMP), which integrates a built-in pre-mixer network of channels and features a lined array of paired injection and aspiration apertures. …”
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An On-Chip Planar Inverted-F Antenna at 38 GHz for 5G Communication Applications by Syed Muhammad Ammar Ali

“…The measurements are performed after placing the fabricated OCA over a 3D-printed plastic slab to minimize the reflections from the metallic chuck of the probe station. …”
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Design and Experimental Characterization of Developed Human Knee Joint Exoskeleton Prototypes by Michał Olinski

“…Both devices are built from 3D-printed parts and their characteristics are determined experimentally. …”
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Interfacing exogenous stents with human coronary artery by self-assembled coating: designs, functionalities and applications by Feng Zhao, Feng Liu, Chenglong Gao, Guoqing Wang, Yinfeng Zhang, Fei Yu, Jiawei Tian, Kai Tan, Runhao Zhang, Kang Liang, Zhexun Lian, Junjie Guo, Biao Kong, Junbo Ge, Hui Xin

“…Moreover, we discuss the potential of self-assembled coatings for future development, including intelligent targeted drug delivery, bionic stent coatings, and 3D printed stent coatings. These advancements have the potential to further improve the effectiveness of drug-eluting stents in treating coronary artery disease.…”
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A Bending Passive RFID Tag as a Sensor for High-Temperature Exposure by Zahangir Khan, Xiaochen Chen, Han He, Adnan Mehmood, Johanna Virkki

“…This “Bending Tag” design is based on a simple dipole antenna fabricated from an electro-textile material. The antenna has a 3D-printed substrate, which is constructed from a commercial Thermo Reactive Filament that gets soft when exposed to 50°C for 30 seconds, causing the tag to bend forward and curve. …”
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The Design and Development of an Atraumatic Soft Robotic Surgical Retractor by Gavril Yong En Tan, Shaun Mahesh Buxani, Benjamin Wee Keong Ang, Chao Yu Chen, Raye Chen Hua Yeow, Hung Leng Kaan

“…Unlike conventional rigid retractors, this innovative system features a dual-component design combining a 3D-printed thermoplastic polyurethane actuator with a stainless-steel splint (SSS), enabling variable stiffness for more effective and less traumatic tissue retraction. …”
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A Butyrylcholinesterase Camera Biosensor Tested for Carbofuran and Paraoxon Assay by Miroslav Pohanka, Jitka Zakova

“…In this paper, a colorimetric biosensor is constructed using 3D-printed multiwell pads treated with indoxylacetate as a chromogenic substrate and gold nanoparticles with the immobilized enzyme butyrylcholinesterase. …”
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Motor-Less Robotic Gripper: Driving Mechanism by Robotic Manipulator Movement by Toshihiro Nishimura, Kosei Ueno, Tetsuyou Watanabe

“…The developed gripper is evaluated experimentally, demonstrating that the gripper achieves a maximum closing speed of 165.9 mm/s and a grasping force of 28.5 N with 3D-printed components. The motor-less structure eliminates the need for cable installation and electrical settings in the gripper, contributing to system simplification. …”
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Form Pressure in Composite Columns of 3DPC and SCC by Silfwerbrand Johan

“…Self-compacting concrete (SCC) and 3D printed concrete (3DPC) are two exciting technologies with potential to increase both the productivity and the working environment in the concrete industry. …”
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