Daniel M. Mulvihill

A multiphysics model for triboelectric nanogenerator design with explicit surface roughness representation

MD Tanzib Ehsan Sanglap, Jack Perris, Rudra Mukherjee, Charchit Kumar et autres

The design of triboelectric nanogenerators (TENGs) for efficient energy harvesting requires predictive models that capture the interplay between surface roughness, real contact area, and electrostatic behaviour across diverse tribolayer materials and roughness levels. To address this demand, this paper presents a multiphysics …

gb, in (code pays fourni par la source)

Scalable core-sheath braided yarn-based textile triboelectric nanogenerator for energy harvesting and human motion sensing

Satyaranjan Bairagi, Muhammad Zada, Daniel M. Mulvihill, S. Wazed Ali et autres

Wearable electronics require flexible and sustainable power sources, while conventional batteries suffer from limited lifespan, rigidity, and environmental concerns. Triboelectric nanogenerators (TENGs) offer a promising alternative by harvesting mechanical energy from human motion and enabling self-powered sensing through stimulus-induced electrical signals. To …

ch, gb, in (code pays fourni par la source)

Overview and Need for Energy Materials in Healthcare

Nghia Dinh Huynh, Nicholas Waller, Jack Perris, Daniel M. Mulvihill et autres

The limited battery life of biomedical electronic devices has spurred a growing demand for advanced energy materials suitable for implantable and ingestible technologies, encompassing both energy harvesting and storage solutions. This chapter provides an in-depth review of these energy materials in biomedical …

gb (code pays fourni par la source)

Vacuum Formed Spherical Triboelectric Architecture Overcoming Direction Constraints for 3D‐Omnidirectional Ultrasonic Energy Receiving

Yanqin Huang, Mengjie Qin, Zixuan He, Xu Yang et autres

ABSTRACT Ultrasound‐driven triboelectric nanogenerators (UD‐TENGs) have emerged as promising ultrasonic energy converters for underwater and biomedical applications. Nevertheless, prevailing planar UD‐TENGs exhibit pronounced directivity, which necessitates a prescribed deployment direction or complex ultrasound alignment strategies, and thus restricts both the output performance …

cn, gb (code pays fourni par la source)

A multiphysics model for triboelectric nanogenerator design with explicit surface roughness representation

MD Tanzib Ehsan Sanglap, Jack Perris, Rudra Mukherjee, Charchit Kumar et autres

The design of triboelectric nanogenerators (TENGs) for efficient energy harvesting requires predictive models that capture the interplay between surface roughness, real contact area, and electrostatic behaviour across diverse tribolayer materials and roughness levels. To address this demand, this paper presents a multiphysics …

Chitosan Molecular Weight Influences on Endodontic Biofilms and Material Enhancement Strategies

Sumaya Abusrewil, Saeed S. Alqahtani, Mohammed Tiba, Charchit Kumar et autres

Objectives: The identification of novel antimicrobial agents for use in root canal treatment may provide opportunities to improve treatment outcomes. This study aimed to assess the antimicrobial efficacy of different molecular weights of chitosan (CS), and how modification with CS may impact …

Libye, gb, sa (code pays fourni par la source)

Intrinsic nanoscale electronic properties of polymeric materials: a KPFM perspective

Jiahui Zhao, Chao Dun Tan, Daniel M. Mulvihill

Harnessing Enhanced Tribo-Polarity via Dual-Sized, Highly Interconnected Electrospun CA-PVP Hybrid Membrane for High-Output TENGs

Gopika Preethikumar, Aswathy Babu, Charchit Kumar, Akshaya Kumar Aliyana et autres

Environmentally benign cellulose fiber membranes have emerged as promising materials for triboelectric nanogenerator (TENG) applications. However, they exhibit inherent dimensional instability and face several operational challenges. Herein, we report a mechanically robust electrospun hybrid membrane composed of cellulose acetate (CA) and polyvinylpyrrolidone …

in, ie, us, gb, Maurice (code pays fourni par la source)

A circular and scalable all-fibre triboelectric nanogenerator based on electrospun biodegradable materials

Xenofon Karagiorgis, Gaurav Khandelwal, Nikolaj Gadegaard, Peter J. Skabara et autres

• All electrospun fibre based TENGs including electrode and active layers. • The fibrous electrodes demonstrated superior performance compared to metal counterparts. • All fibre biodegradable material based TENG produced an output of 45 V and 4.5 μA. • A recycling strategy …

it, gb (code pays fourni par la source)

How to Test Triboelectric Nanogenerators: Key Factors for Standardized Performance Evaluation

Daniel M. Mulvihill, Rudra Mukherjee, Yang Xu, Charchit Kumar et autres

Abstract Triboelectric nanogenerators (TENGs) emerged in 2012 as a way to harness electricity from the triboelectric effect. There have been major developments in materials and performance optimization since then. However, the testing of TENGs is something that requires attention. There are still …

gb, cn, in, nl, ch, ie (code pays fourni par la source)

The Surface-Topography Challenge: A Multi-Laboratory Benchmark Study to Advance the Characterization of Topography

Asima Pradhan, Martin H. Müser, N. Miller, Juan Pablo Abdelnabe et autres

a, the average absolute deviation of the height from the mean line (at some, not necessarily known or specified, lateral length scale). However, other parameters, particularly those that are scale-dependent, influence surface and interfacial properties; for example the local surface slope is …

us, de, ar, it, fr, es, se, in, cn, gb, Égypte, ch, si, cz, nl, uz, ca, cl, gr (code pays fourni par la source)

Flexible and Twistable ZnMn2O4-Electrodeposited Yarn Supercapacitors for Wearable Electronics

Shalu Rani, Gaurav Khandelwal, Abhinav Tandon, Sanjay Kumar et autres

High Resolution Image Download MS PowerPoint Slide The growing demand for wearable electronics has driven interest in flexible fiber-based supercapacitors (F-SCs) as power sources, offering tunable sizes, adaptable shapes, and versatile design possibilities. This study presents the fabrication of a highly flexible …

in, gb, sg, si, my, us, ie (code pays fourni par la source)