Polymers

Kumar, Vijay; Pallapa, Manu; Rezai, Pouya; Selvaganapathy, P.R.

doi:10.1016/b978-0-12-803581-8.00522-1

Cited by 7 publications

(4 citation statements)

References 505 publications

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“…Unfortunately, energy-harvesting technology is not without its limitations in materials and structures. Many microfabrication techniques are not compatible with biological systems, and certain materials are not suited for cleanroom environments due to their particular thermal, mechanical, or chemical properties. ,, The fabrication process often needs to be significantly modified to be compliant with an otherwise unsuited material. There also seems to be an unavoidable trade-off between the rate and accuracy with which 3D devices can be microfabricated.…”

Section: Discussionmentioning

confidence: 99%

“…One method of fabrication, transfer printing, exemplifies a traditional practice that has been scaled down to be compatible with microscale designs. This assembly technique involves transferring objects from a donor to a receiver substrate, avoiding the issues that some polymers have with conventional fabrication techniques . Transfer printing enables the organized combination of materials with different properties onto flexible substrates .…”

Section: Findings: Methods For Harvestingmentioning

confidence: 99%

“…This assembly technique involves transferring objects from a donor to a receiver substrate, avoiding the issues that some polymers have with conventional fabrication techniques. 94 Transfer printing enables the organized combination of materials with different properties onto flexible substrates. 95 Microscale 3D printing is another process that seems to be emerging as a popular technique.…”

Section: ■ Introductionmentioning

confidence: 99%

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On-Body Piezoelectric Energy Harvesters through Innovative Designs and Conformable Structures

Fernandez

Cai

Chen

et al. 2021

ACS Biomater. Sci. Eng.

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Recent advancements in wearable technology have improved lifestyle and medical practices, enabling personalized care ranging from fitness tracking, to real-time health monitoring, to predictive sensing. Wearable devices serve as an interface between humans and technology; however, this integration is far from seamless. These devices face various limitations such as size, biocompatibility, and battery constraints wherein batteries are bulky, are expensive, and require regular replacement. On-body energy harvesting presents a promising alternative to battery power by utilizing the human body's continuous generation of energy. This review paper begins with an investigation of contemporary energy harvesting methods, with a deep focus on piezoelectricity. We then highlight the materials, configurations, and structures of such methods for self-powered devices. Here, we propose a novel combination of thin-film composites, kirigami patterns, and auxetic structures to lay the groundwork for an integrated piezoelectric system to monitor and sense. This approach has the potential to maximize energy output by amplifying the piezoelectric effect and manipulating the strain distribution. As a departure from bulky, rigid device design, we explore compositions and microfabrication processes for conformable energy harvesters. We conclude by discussing the limitations of these harvesters and future directions that expand upon current applications for wearable technology. Further exploration of materials, configurations, and structures introduce interdisciplinary applications for such integrated systems. Considering these factors can revolutionize the production and consumption of energy as wearable technology becomes increasingly prevalent in everyday life.

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Section: Discussionmentioning

confidence: 99%

Section: Findings: Methods For Harvestingmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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On-Body Piezoelectric Energy Harvesters through Innovative Designs and Conformable Structures

Fernandez

Cai

Chen

et al. 2021

ACS Biomater. Sci. Eng.

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“…[ 51 ]. It delivers drugs more promptly through the passive diffusion technique than the other types of MNs [ 52 ]. It is investigated that various parameters, including tip dimension, length, pressure, inner diameter, insertion and retraction of depth, affect the drug flow rate through hollow MNs [ 53 ].…”

Section: Types and Fabrication Of Mnsmentioning

confidence: 99%

Recent Advancements in Microneedle Technology for Multifaceted Biomedical Applications

Kulkarni¹,

Damiri

Rojekar

et al. 2022

Pharmaceutics

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Microneedle (MNs) technology is a recent advancement in biomedical science across the globe. The current limitations of drug delivery, like poor absorption, low bioavailability, inadequate skin permeation, and poor biodistribution, can be overcome by MN-based drug delivery. Nanotechnology made significant changes in fabrication techniques for microneedles (MNs) and design shifted from conventional to novel, using various types of natural and synthetic materials and their combinations. Nowadays, MNs technology has gained popularity worldwide in biomedical research and drug delivery technology due to its multifaceted and broad-spectrum applications. This review broadly discusses MN’s types, fabrication methods, composition, characterization, applications, recent advancements, and global intellectual scenarios.

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Anodic Niobium–Titanium Oxide Crossbar Memristor Arrays for pH Sensing in Liquids

Knapic,

Atanasova,

Zrinski

et al. 2024

Physica Status Solidi (a)

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Anodic Nb–Ti oxide crossbar memristor arrays are successfully produced on Si substrates. Their use as pH sensors is tested by analyzing their current–voltage (I–U) sweeps in Ringer´s solutions with different pH values. A gradual evolution of the memristive hysteretic curve is observed upon pH variation. A sensor calibration showing a linear trend with least square error close to 1 is performed and the performance of the pH sensing is assessed. The limit of detection (LOD), limit of quantification (LOQ), and the sensitivity (S) are determined. The calculated LOD is 0.4 pH, and the LOQ is 1.2 pH. The S is calculated as 0.5 pH corresponding to a concentration of c(OH−) = 3.5 mM. The reproducibility and repeatability of the measurements are calculated as 3.8% and 1.4%, respectively. An X‐ray photoelectron spectroscopy survey allows the study of the oxide composition providing information about its pH‐sensing mechanism. It is found that the OH− species diffused into the mixed anodic oxide are responsible for the pH‐induced high‐ to low‐resistance state changes. A conduction mechanism analysis is carried out and Schottky emission is identified as predominant.

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Polymers

Cited by 7 publications

References 505 publications

On-Body Piezoelectric Energy Harvesters through Innovative Designs and Conformable Structures

On-Body Piezoelectric Energy Harvesters through Innovative Designs and Conformable Structures

Recent Advancements in Microneedle Technology for Multifaceted Biomedical Applications

Anodic Niobium–Titanium Oxide Crossbar Memristor Arrays for pH Sensing in Liquids

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