This study investigates the dielectric properties of conductive biocomposites (CBs), which are integral to the development of advanced materials for flexible electronics and medical devices. A novel method employing Microwave Reflectometry (MR) is introduced, utilizing a miniaturized Vector Network Analyzer (m-VNA) and a dedicated sensing element (SE), to extract the dielectric properties of CBs. The method is grounded in a minimization principle, aligning the measured S11 reflection scattering parameter with its electromagnetic (EM) simulation, facilitating a refined process for determining the dielectric properties. The experimental setup was meticulously engineered, optimized, and validated using reference dielectric samples (RDSs) with known dielectric properties. The method was then applied to three innovative CBs, resulting in an accurate extrapolation of their dielectric properties. The findings highlight the method's versatility, cost-efficiency, and applicability to ultra-thin and flexible biopolymer films, offering significant potential for advancements in flexible electronics and bio-sensing applications.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11175012 | PMC |
| http://dx.doi.org/10.3390/s24113508 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Gaseous Synergistic Self-Assembly and Arraying to Develop Bio-Organic Photocapacitors for Neural Photostimulation.
Adv Sci (Weinh)
January 2025
State Key Laboratory of Fluid Power and Mechatronic Systems, Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310058, China.
Bioinspired supramolecular architectonics is attracting increasing interest due to their flexible organization and multifunctionality. However, state-of-the-art bioinspired architectonics generally take place in solvent-based circumstance, thus leading to achieving precise control over the self-assembly remains challenging. Moreover, the intrinsic difficulty of ordering the bio-organic self-assemblies into stable large-scale arrays in the liquid environment for engineering devices severely restricts their extensive applications.
View Article and Find Full Text PDFHigh-entropy engineered BaTiO-based ceramic capacitors with greatly enhanced high-temperature energy storage performance.
Nat Commun
January 2025
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, China.
Ceramic capacitors with ultrahigh power density are crucial in modern electrical applications, especially under high-temperature conditions. However, the relatively low energy density limits their application scope and hinders device miniaturization and integration. In this work, we present a high-entropy BaTiO-based relaxor ceramic with outstanding energy storage properties, achieving a substantial recoverable energy density of 10.
View Article and Find Full Text PDFA multi-band high-sensitivity microwave sensor for simultaneous detection of two dielectric materials.
Rev Sci Instrum
January 2025
The State Key Laboratory of Complex Electromagnetic Environment Effects on Electronic and Information System, Luoyang 471004, China.
A multi-band high-sensitivity microwave sensor is reported. The two resonance units are based on complementary square spiral resonators (CSSRs) and produce four measurement bands through parasitic resonances. The four frequency bands are 2.
View Article and Find Full Text PDFRecent Advances in Structural Design of Carbon/Magnetic Composites and their Electromagnetic Wave Absorption Applications.
Small
January 2025
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China.
Electromagnetic pollution protection and military stealth technologies underscore the urgent need to develop efficient electromagnetic wave-absorbing materials (EWAMs). Traditional EWAMs suffer from single absorption loss mechanisms, poor impedance matching, and weak reflection loss. To date, combining dielectric loss with magnetic loss in EWAMs have proven to be an effective approach to enhancing electromagnetic absorption performance.
View Article and Find Full Text PDFAtomic structures and electronic properties of different contact surfaces for C F -SiO triboelectric nanogenerator based on first-principles investigations.
RSC Adv
January 2025
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications Beijing 100876 China
Modification of the dielectric friction layer materials is an ideal way to enhance the output performance of a triboelectric nanogenerator (TENG), but current research mostly focuses on the metal-polymer or metal-SiO materials. In this work, we constructed different TENG models based on polymer C F -SiO electret materials, and the electronic properties of the different contact surfaces were investigated using first principles. We found that the charge transfer in C F -SiO materials occurred only at the contact interface, and it was partially affected by the terminal atoms near the SiO interface.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!