Micro-fabrication of high-thickness spiral inductors for the remote powering of implantable biosensors

Olivo, Jacopo; Carrara, Sandro; Micheli, Giovanni De

doi:10.1016/j.mee.2013.07.016

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…As an aromatic epoxide polymer, cured SU-8 has good thermal and chemical stability, which may or may not be advantageous depending on the application. In particular, copper, which has become an increasingly popular alternative to aluminum for IC connections, can be damaged by strong acids or high temperatures used to remove SU-8, in which case, an acrylate-based negative photoresist such as Ordyl (Elga Europe, Italy) or DiaPlate (HTP, Switzerland) may be preferred because it can be stripped fairly mildly with 3% NaOH at 50 °C …”

Section: Vat Photopolymerizationmentioning

confidence: 99%

Polymers for 3D Printing and Customized Additive Manufacturing

Ligon

Liska²,

Stampfl³

et al. 2017

Chem. Rev.

2,701

2,191

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Additive manufacturing (AM) alias 3D printing translates computer-aided design (CAD) virtual 3D models into physical objects. By digital slicing of CAD, 3D scan, or tomography data, AM builds objects layer by layer without the need for molds or machining. AM enables decentralized fabrication of customized objects on demand by exploiting digital information storage and retrieval via the Internet. The ongoing transition from rapid prototyping to rapid manufacturing prompts new challenges for mechanical engineers and materials scientists alike. Because polymers are by far the most utilized class of materials for AM, this Review focuses on polymer processing and the development of polymers and advanced polymer systems specifically for AM. AM techniques covered include vat photopolymerization (stereolithography), powder bed fusion (SLS), material and binder jetting (inkjet and aerosol 3D printing), sheet lamination (LOM), extrusion (FDM, 3D dispensing, 3D fiber deposition, and 3D plotting), and 3D bioprinting. The range of polymers used in AM encompasses thermoplastics, thermosets, elastomers, hydrogels, functional polymers, polymer blends, composites, and biological systems. Aspects of polymer design, additives, and processing parameters as they relate to enhancing build speed and improving accuracy, functionality, surface finish, stability, mechanical properties, and porosity are addressed. Selected applications demonstrate how polymer-based AM is being exploited in lightweight engineering, architecture, food processing, optics, energy technology, dentistry, drug delivery, and personalized medicine. Unparalleled by metals and ceramics, polymer-based AM plays a key role in the emerging AM of advanced multifunctional and multimaterial systems including living biological systems as well as life-like synthetic systems.

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Section: Vat Photopolymerizationmentioning

confidence: 99%

Polymers for 3D Printing and Customized Additive Manufacturing

Ligon

Liska²,

Stampfl³

et al. 2017

Chem. Rev.

2,701

2,191

View full text Add to dashboard Cite

show abstract

“…The maximum Q value was 45.77. In Switzerland in 2014, Jacopo Olivo et al [77] created an inductor coil that can be used in implantable biosensors (Figure 5). The inductor is 14.88 mm × 2 mm in size and is backed by 525 µm of silicon with a 1-um silicon dioxide layer.…”

Section: Three Types Of Micro Metal Coils Based On Mems Technology (1...mentioning

confidence: 99%

Recent Progress in the Preparation Technologies for Micro Metal Coils

et al. 2022

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The recent development of micro-fabrication technologies has provided new methods for researchers to design and fabricate micro metal coils, which will allow the coils to be smaller, lighter, and have higher performance than traditional coils. As functional components of electromagnetic equipment, micro metal coils are widely used in micro-transformers, solenoid valves, relays, electromagnetic energy collection systems, and flexible wearable devices. Due to the high integration of components and the requirements of miniaturization, the preparation of micro metal coils has received increasing levels of attention. This paper discusses the typical structural types of micro metal coils, which are mainly divided into planar coils and three-dimensional coils, and the characteristics of the different structures of coils. The specific preparation materials are also summarized, which provides a reference for the preparation process of micro metal coils, including the macro-fabrication method, MEMS (Micro-Electro-Mechanical System) processing technology, the printing process, and other manufacturing technologies. Finally, perspectives on the remaining challenges and open opportunities are provided to help with future research, the development of the Internet of Things (IoTs), and engineering applications.

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“…Olivo et al tested by micro-fabrication high-thickness spiral inductors for the remote powering of implantable biosensors through inductive link. These inductors enabled bidirectional data communication with the external transmitter [127]. Luo et al successfully designed and microfabricated a RF wireless LC resonant pressure sensor completely made of biodegradable materials.…”

Section: Data Communicationmentioning

confidence: 99%

Skin-Integrated Wearable Systems and Implantable Biosensors: A Comprehensive Review

et al. 2020

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Biosensors devices have attracted the attention of many researchers across the world. They have the capability to solve a large number of analytical problems and challenges. They are future ubiquitous devices for disease diagnosis, monitoring, treatment and health management. This review presents an overview of the biosensors field, highlighting the current research and development of bio-integrated and implanted biosensors. These devices are micro- and nano-fabricated, according to numerous techniques that are adapted in order to offer a suitable mechanical match of the biosensor to the surrounding tissue, and therefore decrease the body’s biological response. For this, most of the skin-integrated and implanted biosensors use a polymer layer as a versatile and flexible structural support, combined with a functional/active material, to generate, transmit and process the obtained signal. A few challenging issues of implantable biosensor devices, as well as strategies to overcome them, are also discussed in this review, including biological response, power supply, and data communication.

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Micro-fabrication of high-thickness spiral inductors for the remote powering of implantable biosensors

Cited by 9 publications

References 13 publications

Polymers for 3D Printing and Customized Additive Manufacturing

Polymers for 3D Printing and Customized Additive Manufacturing

Recent Progress in the Preparation Technologies for Micro Metal Coils

Skin-Integrated Wearable Systems and Implantable Biosensors: A Comprehensive Review

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