Results 41 to 50 of about 28,509 (250)

A Hybrid Smartphone Indoor Positioning Solution for Mobile LBS

Sensors, 2012
Smartphone positioning is an enabling technology used to create new business in the navigation and mobile location-based services (LBS) industries. This paper presents a smartphone indoor positioning engine named HIPE that can be easily integrated with ...
Heidi Kuusniemi, Ling Pei, Ruizhi Chen, Jingbin Liu, Robert Guinness   +4 more
doaj   +1 more source

Tannic Acid‐Modified Cellulose Nanofiber Reinforced Polymerizable Eutectogels for High‐Performance Stretchable Strain Sensors

Advanced Functional Materials, EarlyView.
A polymerizable deep eutectic solvent is reinforced with tannic acid‐modified cellulose nanofibers to construct a hierarchical dynamic eutectogel network. Synergistic covalent and reversible interactions impart ultrahigh stretchability, high ionic conductivity, broad temperature tolerance, self‐healing, and strong adhesion, enabling robust wearable ...
Huang Wu, Yang Hu, Youmin Tuo, Weide Zhang, Nanzhu Bao, Haitao Wu, Zhuangzhuang Chu, Yunhua Chen, Tao Wang, Teng Yuan, Hongbo Zeng, Zhuohong Yang   +11 more
wiley   +1 more source

Sensitive Integration of Multilevel Optimization Model in Human Activity Recognition for Smartphone and Smartwatch Applications

Big Data Mining and Analytics, 2021
This study proposes an intelligent data analysis model for finding optimal patterns in human activities on the basis of biometric features obtained from four sensors installed on smartphone and smartwatch devices.
Samaher Al-Janabi, Ali Hamza Salman
doaj   +1 more source

Portable Molecularly Imprinted Polymer Sensor for Rapid Swab‐Based Detection of Norovirus

Advanced Healthcare Materials, EarlyView.
This work reports a rapid, portable smartphone‐based sensor capable of detecting four norovirus genotypes from swab samples within 15 min. Sensor selectivity was validated through evaluation against four common live viruses. The swab‐based sampling process enabled simple sample preparation combined with the compact detection system, supporting use of ...
Amy Dann, Pankaj Singla, Minji Kim, Sloane Stoufer, Clare Thomas, Robert D. Crapnell, Craig E. Banks, Jake McClements, Shayan Seyedin, Mark Geoghegan, Samuel T. Jones, Christopher F. Blanford, Matthew D. Moore, Marloes Peeters   +13 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Smartphone in medicine — from a reference book to a diagnostic system. Overview of the current state of the issue

Кардиоваскулярная терапия и профилактика, 2022
The paper provides a brief overview of the modern possibilities of using a smartphone as a diagnostic device of a wide profile. In some cases, additional specialized attachments are required. In others, the diagnostic algorithm uses only standard cameras,
A. A. Fedorovich, A. Yu. Gorshkov, A. I. Korolev, O. M. Drapkina   +3 more
doaj   +1 more source

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source

Photonic hydrogel for continuous glucose monitoring using smartphone readout

Materials & Design, 2023
Diabetes has become one of the leading deaths causes worldwide. Developing low-cost, rapid, and reusable sensors can provide a solution for continuous glucose monitoring to reduce the diabetic complications that could be fatal.
Israr Ahmed, Mohamed Elsherif, Murad Ali, Amal Al Ghaferi, Baker Mohammad, Haider Butt   +5 more
doaj   +1 more source

Direct Synthesis of High‐Valence Protein@UiO‐66 Composites: Linking Crystallization Pathways to Protein Encapsulation

Advanced Materials, EarlyView.
This work reports a direct, biocompatible method to synthesize UiO‐66, enabling one‐step encapsulation of proteins without compromising crystallinity or activity. Using advanced in situ and ex situ techniques, the study reveals that proteins integrate concurrently with MOF growth, forming crystalline protein@UiO‐66 nanoparticles, and provide insight ...
Jesús Cases Díaz, Jana Glatz, Elisa Merced Olivas, Ramon Pons, Joseph P. Patterson, Mónica Giménez‐Marqués   +5 more
wiley   +1 more source

Smartphone-integrated nanozymes: Classification, catalytic mechanisms, activity regulation, and food analysis applications

Sensors and Actuators Reports
Food analysis is vital for safeguarding food safety and ensuring product quality, particularly in global supply chains where hazards can emerge at any stage. Nanozymes not only have enzyme-mimetic catalytic activity analogous to natural enzymes, but also
Shan Geng, Ming-Shan Shuai, Hao Zhang
doaj   +1 more source