Results 81 to 90 of about 20,776 (229)

MXene‐Based Self‐Powered Flexible Sensors: Advances in Fabrication, Sensing Mechanisms, and Density Functional Theory‐Driven Performance Optimization

Advanced Energy and Sustainability Research, Volume 7, Issue 4, April 2026.
MXene‐based self‐powered textile sensors are presented as an emerging platform for integrated energy harvesting and multifunctional sensing in wearable electronics. This review systematically discusses MXene synthesis, DFT‐driven insights into properties, nanogenerator‐based device architectures, and scalable textile integration strategies, while ...
Md. Mahfuzur Rahman, Rifat Sarker Apu, Anik Kumar Das, Md. Farhad Hossain, Mohammad Kamrul Hasan, Rubaiyet I. Haque   +5 more
wiley   +1 more source

A sensitive immunosensor for detection of tumor biomarker based on bimetallic Cu-Zn oxide nanoparticles

Alexandria Engineering Journal
The current study was carried out to construct a novel colorimetric sandwich immunosensor for the sensitive, accurate, and rapid detection of prostate-specific antigen (PSA), a critical tumor biomarker for the diagnosis and screening of prostate cancer ...
Haotian Bai
doaj   +1 more source

Multiplexed Ultrasensitive Determination of Adrenocorticotropin and Cortisol Hormones at a Dual Electrochemical Immunosensor [PDF]

, 2012
A novel dual electrochemical immunosensor for the multiplexed determination of adrenocorticotropin (ACTH) and cortisol is reported. Aminophenylboronic acid-modified dual screen-printed carbon electrodes were prepared on which the corresponding ACTH and ...
González Cortés, Araceli, Moreno Guzmán, María, Yañez Sedeño, Paloma   +2 more
core   +2 more sources

Recent Advances in Hafnium Oxide Nanomaterials: From Controlled Synthesis, Structure, and Surface Engineering to Biomedical Applications

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Hafnium oxide (HfO2) nanoparticles (NPs), derived from a rare‐metal element, have gained increasing attention as a versatile class of functional nanostructures with unique optical, dielectric, and surface properties that enable diverse biomedical applications. As a representative rare‐metal oxide, HfO2 NPs with well‐defined architectures offer
Mothana Hussein Tarawneh, Mohammed Ali Dheyab, Azhar Abdul Rahman, Mutaz Mohammad Alsardi, Azlan Abdul Aziz, Saleh T. Alanezi, Wesam Abdullah, Sara Abdulwahab, Mehran Ghasemlou   +8 more
wiley   +1 more source

A Novel Label-Free Amperometric Immunosensor Based on Graphene Sheets-Methylene Blue Nanocomposite/Gold Nanoparticles

International Journal of Electrochemical Science, 2014
In this study, a sensitive, label-free amperometric immunosensor based on graphene sheets-methylene blue nanocomposite and gold nanoparticles (GS-MB/GNPs) for the direct determination of chlorpyrifos residues was exploited. To fabricate the immunosensor,
Lu Qiao, Xiangyou Wang, Xia Sun
doaj   +1 more source

High Sensitivity Cardiac Troponin I Detection via MP‐Locked Aptamer and Multimeric DNAzyme‐Coupled Hyperbranched Hybridization Chain Reaction

Small, Volume 22, Issue 20, 7 April 2026.
We report a magnetic particle anchored locked aptamer platform integrated with hyperbranched HCR and DNAzyme amplification for enzyme‐free, ultrasensitive detection of cardiac troponin I. The assay achieves a 0.25 ng/L detection limit within 25 minutes and enables cross‐species MI detection, with machine learning classification reaching 90% accuracy ...
Sayantan Tripathy, Sahil Sharma, Ng Ka Wai, Siddhant Jaitpal, Anthony Dongchau, Saugat Bhattacharyya, Sonya R. Wesselowski, Ashley B. Saunders, Gerard L. Coté, Samuel B. Mabbott   +9 more
wiley   +1 more source

Graphene Quantum Dots as Nanozymes for Electrochemical Sensing of Yersinia enterocolitica in Milk and Human Serum [PDF]

, 2019
The genus Yersinia contains three well-recognized human pathogens, including Y. enterocolitica, Y. pestis, and Y. pseudotuberculosis. Various domesticated and wild animals carry Yersinia in their intestines.
Altintas, Zeynep, Savas, Sumeyra
core   +1 more source

Recent advances of non‐invasive sensors for smart wearable respiratory monitoring

VIEW, Volume 7, Issue 2, April 2026.
Respiration contains rich physiological and pathological information, making it one of the most fundamental and continuous vital signs. Respiration monitoring is a non‐invasive and simple, but incredibly powerful, tool for assessing health, managing disease, and tracking fitness.
Jianhui Chen, Baoxiang Yang, Chang Peng, Bao Yang, Licheng Zhou, Zhenyu Jiang, Zejia Liu, Yiping Liu, Liqun Tang   +8 more
wiley   +1 more source

Detection of lymphoma biomarker ferritin using functionalized carbon nanotube platform

Alexandria Engineering Journal
For the detection of ferritin, this work engineered an electrochemical immunosensor by functionalizing multi-walled carbon nanotubes (MWCNTs) and integrating them into a screen-printed carbon electrode (SPCE) platform.
Shuang Qu, Chen Wang, Xiaoling Guo, Zhihai Zheng, Biyun Chen, Sicong Jiang   +5 more
doaj   +1 more source

A nanoDiamond/gold nanoparticle-based electrochemical immunosensor for the detection of HER 2 cancer biomarker

Biosensors and Bioelectronics: X
We report a highly sensitive electrochemical immunosensor based on a nanohybrid platform for the detection of the breast cancer biomarker human epidermal growth factor receptor 2 (HER 2).
Foluke O.G. Olorundare, Sesethu Makaluza, Nyasha Midzi, Omotayo A. Arotiba, Duduzile Nkosi   +4 more
doaj   +1 more source