Results 11 to 20 of about 28,086 (247)

Detection of abemaciclib, an anti-breast cancer agent, using a new electrochemical DNA biosensor [PDF]

Frontiers in Chemistry, 2022
Detection of DNA molecules and possible chemotherapy-induced changes in its structure has been the goal of researchers using rapid, sensitive and inexpensive approaches.
Zimeng Lei, Merim Alwan, Hassan Thoulfikar A. Alamir, Hussein Humedy Chlib Alkaaby, Sinan Subhi Farhan, Sura A. Awadh, Usama S. Altimari, Hawra’a Fadhel Abbas Al-Baghdady, Athmar Ali Kadhim, Maytham T. Qasim, Ali Hussein Adhab, Abuzar Nekuei   +11 more
doaj   +2 more sources

Electrochemical DNA Biosensor Based on Mercaptopropionic Acid-Capped ZnS Quantum Dots for Determination of the Gender of Arowana Fish [PDF]

Biosensors, 2022
A new electrochemical DNA biosensor based on mercaptopropionic acid (MPA)-capped ZnS quantum dots (MPA-ZnS QDs) immobilization matrix for covalent binding with 20-base aminated oligonucleotide has been successfully developed.
Eka Safitri, Lee Yook Heng, Musa Ahmad, Ling Ling Tan, Nazaruddin Nazaruddin, Khairi Suhud, Chew Poh Chiang, Muhammad Iqhrammullah   +7 more
doaj   +2 more sources

Electrochemical DNA Biosensor Based on Immobilization of a Non-Modified ssDNA Using Phosphoramidate-Bonding Strategy and Pencil Graphite Electrode Modified with AuNPs/CB and Self-Assembled Cysteamine Monolayer [PDF]

Sensors, 2022
The present paper describes an alternative approach to the traditionally used covalent immobilization methods that require cost-intensive and complicated chemistry modification of a single-stranded DNA (ssDNA) capture probe.
Hamza Moustakim, Hasna Mohammadi, Aziz Amine   +2 more
doaj   +2 more sources

Facile Label-Free Electrochemical DNA Biosensor for Detection of Osteosarcoma-Related Survivin Gene [PDF]

Biosensors, 2022
A sensitive and selective electrochemical deoxyribonucleic acid (DNA) biosensor was developed for the determination of a osteosarcoma-related survivin gene by using celestine blue (CB) as a label-free hybridization indicator.
Yao Chen, Yu Zhong, Ji-Xing Ye, Yun Lei, Ai-Lin Liu   +4 more
doaj   +2 more sources

Multi-Walled Carbon Nanotube Array Modified Electrode with 3D Sensing Interface as Electrochemical DNA Biosensor for Multidrug-Resistant Gene Detection [PDF]

Biosensors, 2023
Drug resistance in cancer is associated with overexpression of the multidrug resistance (MDR1) gene, leading to the failure of cancer chemotherapy treatment.
Ruiting Chen, Hejing Chen, Huaping Peng, Yanjie Zheng, Zhen Lin, Xinhua Lin   +5 more
doaj   +2 more sources

Ultrasensitive Electrochemical DNA Biosensor Fabrication by Coupling an Integral Multifunctional Zirconia-Reduced Graphene Oxide-Thionine Nanocomposite and Exonuclease I-Assisted Cleavage [PDF]

Frontiers in Chemistry, 2020
In this work, a simple but sensitive electrochemical DNA biosensor for nucleic acid detection was developed by taking advantage of exonuclease (Exo) I-assisted cleavage for background reduction and zirconia-reduced graphene oxide-thionine (ZrO2-rGO-Thi ...
Zhiqiang Chen, Xueqian Liu, Dengren Liu, Fang Li, Li Wang, Shufeng Liu   +5 more
doaj   +2 more sources

An Electrochemical DNA Biosensor for Carcinogenicity of Anticancer Compounds Based on Competition between Methylene Blue and Oligonucleotides [PDF]

Sensors, 2019
A toxicity electrochemical DNA biosensor has been constructed for the detection of carcinogens using 24 base guanine DNA rich single stranded DNA, and methylene blue (MB) as the electroactive indicator.
Nor Diyana Md. Sani, Eda Yuhana Ariffin, Wong Sheryn, Mohd Asyraf Shamsuddin, Lee Yook Heng, Jalifah Latip, Siti Aishah Hasbullah, Nurul Izzaty Hassan   +7 more
doaj   +2 more sources

Construction of the indicator-free electrochemical biosensor with magnetically self-assembly based on Fe3O4/α-Fe2O3 magnetic heterogeneous nanorods for the ultra-sensitive detection of CYFRA 21-1 DNA [PDF]

Frontiers in Chemistry
IntroductionLung cancer prevalence rate has been rising steadily in recent years, for the prevention and treatment, the detection of tumor marker CYFRA 21-1 DNA demonstrates its significance.MethodsIn this work, an electrochemical biosensor was ...
Xiaoting Yi, Peng Deng, Zhou Wang, Jiawei Wang, Hongfei Wang, Zhan-ao Wu   +5 more
doaj   +2 more sources

A DNA Electrochemical Sensor via Terminal Protection of Small-Molecule-Linked DNA for Highly Sensitive Protein Detection

Biosensors, 2021
The qualitative and quantitative determination of marker protein is of great significance in the life sciences and in medicine. Here, we developed an electrochemical DNA biosensor for protein detection based on DNA self-assembly and the terminal ...
Ping Ouyang, Chenxin Fang, Jialun Han, Jingjing Zhang, Yuxing Yang, Yang Qing, Yubing Chen, Wenyan Shang, Jie Du   +8 more
doaj   +1 more source

An efficiently engineered electrochemical biosensor as a novel and user-friendly electronic device for biosensing of Streptococcus Pneumoniae bacteria

Sensing and Bio-Sensing Research, 2022
We have constructed a novel electrochemical biosensor for detection and quantification of the Streptococcus Pneumoniae bacteria (SPB) based on change in electrochemical impedance spectroscopic (EIS) responses of the biosensing system.
Azam Yaghoobi, Ramin Abiri, Amirhoushang Alvandi, Elham Arkan, Ghobad Mohammadi, Tooraj Farshadnia, Ali R. Jalalvand   +6 more
doaj   +1 more source