Results 1 to 10 of about 7,222 (224)

A Novel Label-Free Electrochemical Immunosensor for the Detection of Thyroid Transcription Factor 1 Using Ribbon-like Tungsten Disulfide-Reduced Graphene Oxide Nanohybrids and Gold Nanoparticles

Molecules
Thyroid transcription factor 1 (TTF1) is an important cancer-related biomarker for clinical diagnosis, especially for carcinomas of lung and thyroid origin.
Wenjing Wang, Huabiao Tang, Leiji Zhou, Zhaohui Li   +3 more
doaj   +1 more source

A Novel Tetrahydrocannabinol Electrochemical Nano Immunosensor Based on Horseradish Peroxidase and Double-Layer Gold Nanoparticles

Molecules, 2016
In the current study, a novel double-layer gold nanoparticles-electrochemical immunosensor electrode immobilized with tetrahydrocannabinol (THC) antibody derived from Balb/c mice was developed.
Dingqiang Lu, Fuping Lu, Guangchang Pang
doaj   +1 more source

Ultrasensitive Detection of Neurofilament Light in Plasma Using F(Ab’)2‐Modified Graphene Field‐Effect Biosensor

Small, EarlyView.
An antibody fragment (F(ab')2)‐modified graphene field‐effect transistor biosensor is developed for the ultrasensitive detection of neurofilament light chain in clinical plasma. By reducing the Debye screening effect, the platform achieves a 114% sensitivity increase and a fivefold lower detection limit compared to whole‐antibody approaches ...
Selvinaz Burcu Kizilates, Rica Asrosa, Lenart Senicar, Anuja Sharma, Seda Gungordu Er, Nisha Naeem, Ahmad Nizamuddin bin Muhammad Mustafa, Yang Wu, Neil Graham, Amanda Heslegrave, Mohan Edirisinghe, Antonio Lombardo, Elias Torres, Henrik Zetterberg, Sami Ramadan, David J. Sharp, Bing Li   +16 more
wiley   +1 more source

An Ultrasensitive Electrochemical Immunosensor for in Situ Detection of GABA in Plant Leaves

ChemElectroChem
Gamma‐aminobutyric acid (GABA) is involved in the signal transduction and metabolism of various substances in plants. Its in vivo detection in plants is of great importance for understanding its physiological role.
Haotong Wu, Yueyue Wang, Qian Wei, Bin Luo, Cheng Wang, Peichen Hou, Aixue Li   +6 more
doaj   +1 more source

Synthesis and Surface Engineering of Two‐Dimensional MXenes for Advanced Functional Applications

The Chemical Record, EarlyView.
This study highlights the synthesis, surface engineering, and advanced functional applications of MXenes, emphasizing key preparation strategies that enable their use in catalysis, energy storage, sensing, and environmental remediation. Two‐dimensional MXenes (2DMxn), a rapidly expanding family of transition metal carbides, nitrides, and carbonitrides ...
Dalil N. H. Al‐Ghubairi, Hadi M. Marwani, Mahmood D. Aljabri, Muhammad Fazle Rabbee, Mohammed Muzibur Rahman   +4 more
wiley   +1 more source

Additive manufacturing of carbon black immunosensors based on covalent immobilization for portable electrochemical detection of SARS-CoV-2 spike S1 protein

Talanta Open, 2023
The global pandemic of the COVID-19 disease has emphasized the need to develop clinical tests which are simple, fast and inexpensive. In this aspect, electrochemical biosensors are alternatives capable to attend such requirements and providing reliable ...
Luiz Ricardo Guterres Silva, Jéssica Santos Stefano, Robert D. Crapnell, Craig E. Banks, Bruno Campos Janegitz   +4 more
doaj   +1 more source

A Review of Breath Sensing for Disease Monitoring and Diagnosis: Breathomics, Artificial Intelligence, and Nanomaterials for the Future of Medicine

Advanced Sensor Research, Volume 5, Issue 7, July 2026.
Breathomics is established as a non‐invasive diagnostic strategy by combining volatile organic compound biomarkers, nanomaterial‐based sensor arrays, and AI‐driven classification. Key diseases, sensing materials, and analytical challenges are critically compared, revealing how portable, data‐enabled breath platforms are moving toward clinically useful ...
Anesu Nyabadza, Mayur Makhesana, Suman Chatterjee, Dermot Brabazon   +3 more
wiley   +1 more source

Immunosensor for breast cancer CD44 biomarker detection based on exfoliated graphene quantum dots integrated gold nanoparticles

Hybrid Advances, 2023
Breast cancer is a fatal disease caused by the abnormal development of cells in the breast, which forms tumors, and whose progression results in metastatic behavior. In this study, we present a novel electrochemical immunosensor based on graphene quantum
Neeraj Kumar, Mohd Abubakar Sadique, Raju Khan, V. Sorna Gowri, Surender Kumar, Mohammad Ashiq, Sathish Natarajan   +6 more
doaj   +1 more source

Dual‐Channel Interdigitated Aptamer‐Based Sensors for Rapid Small‐Molecule Detection in Biofluids

Angewandte Chemie International Edition, Volume 65, Issue 27, 1 July 2026.
An electrochemical aptamer sensing chip employs dual interdigitated electrodes and selective self‐assembled monolayer removal to convert small‐molecule recognition into robust “signal‐off/on” responses. This dual‐channel signal conversion minimizes background noise and accelerates probe diffusion, enabling rapid (as fast as 5–30 min), low‐volume ...
Senyao Wang, Ali Elmorsy, Defne Tüzün, Lilly Schmidt, Sebastian Freko, Lukas Hiendlmeier, Chen Wang, Alonso Ingar Romero, George Al Boustani, Hu Peng, Berna Özkale, Nako Nakatsuka, Bernhard Wolfrum   +12 more
wiley   +1 more source

Nitrogen-doped Graphene Modified Glassy Carbon Electrode for Electrochemical Determination of Breast Cancer Marker Carbohydrate Antigen 15-3

International Journal of Electrochemical Science, 2017
In this study, an electrochemical immunosensor based on nitrogen-doped graphene sheets (N-GS) for label-free and sensitive determination of CA15-3 was prepared.
Liqiong Liu, Jinglei Gao, Lanqing Guo, Jun Xu   +3 more
doaj   +1 more source