Hallaj, Rahman Ghafary, Zhaleh Kamal Mohammed, Osama Shakeri, Raheleh
Published in
Biosensors & bioelectronics
Herein, we implemented RNA-cleaving DNAzymes specific for the endogenous protein of breast cancer cells (MDA-MB -231) and programmed for electrochemical detection. Thionine-modified gold nanoparticles and modified magnetic nanoparticles are attached to the two ends of the DNAzyme molecule. The prepared probe is pulled to the surface of the electrod...
Thulasinathan, Boobalan D, Sujatha Murugan, Sethupathi Panda, Subhendu K Veerapandian, Murugan Manickam, Pandiaraj
Published in
Biosensors & bioelectronics
The electrochemical biosensing strategy for pyocyanin (PYO), a virulent quorum-sensing molecule responsible for Pseudomonas aeruginosa infections, was developed by mimicking its extracellular DNA interaction. Calf thymus DNA (ct-DNA) functionalized amine-containing carbon quantum dots (CQDs) were used as a biomimetic receptor for electrochemical se...
Zhao, Yanan Song, Wanying Xu, Jiaqi Wu, Tianli Gong, Zhiyong Li, Yuchao Li, Baojun Zhang, Yao
Published in
Biosensors & bioelectronics
Light-driven micromotors with high spatial resolution are powerful tools for targeted drug delivery and biomedical diagnosis. To combine the function of biosensing, light-driven micromotors have been modified with fluorescence materials such as quantum dots or dyes. However, these fluorescence micromotors are generally driven and excited by ultravi...
Chen, Bin Tao, Qin OuYang, Songtao Wang, Minhui Liu, Yuanjian Xiong, Xiaohui Liu, Songqin
Published in
Biosensors & bioelectronics
After discovery of electron transfer from bacteria, most bacteria known to be electrochemically active are utilized as a self-regenerable catalyst at the anode of microbial fuel cells (MFCs). However, the reverse phenomenon, cathodic catalysts is not so widely researched. This present study demonstrated that E. coli O157:H7 was electrochemically ac...
Ulloa-Gomez, Ana M Lucas, Alec Koneru, Abbey Barui, Amit Stanciu, Lia
Published in
Biosensors & bioelectronics
We report a novel aptasensor for the simultaneous colorimetric and electrochemical detection of mercury (Hg2+). This device consists of a paper-based microfluidic component (μ-PAD) incorporated into a miniaturized three-electrode system fabricated through printed circuit board (PCB) technology. This biosensor is portable, rapid, versatile, and can ...
Zhao, Mengzhen Cao, Fei Chen, Jiaheng Hong, Junbo Deng, Dan Wang, Qingqing Sun, Yue Li, Qun Xin, Hongbo Wang, Xiaolei
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Published in
Biosensors & bioelectronics
Bacterial antimicrobial resistance (AMR) driven by the abuse of antibiotics is a global highlight challenge, calling for a rapid, economical and generalizable bacterial detection technology. Here, in case of urinary tract infections (UTIs), a naked-eye, antibody-free and multi-functional bacterial assessment platform was designed, which consisted o...
Cao, Cong Wang, Min Zhang, Dingyi Yu, Shaoning Xie, Hongzhen Wang, Qiqin Yu, Zhenzhong Gan, Ning
Published in
Biosensors & bioelectronics
Live foodborne pathogens proliferate rapidly and do great harm to human health, which requires appropriate methods to supervise. In this work, a portable adenosine triphosphate (ATP) bioluminescence sensor with high specificity for live E. coli O157:H7 strain synergistically enhanced by orientated phage-modified stir bar extraction and bio-prolifer...
Lobry, Maxime Loyez, Médéric Debliquy, Marc Chah, Karima Goormaghtigh, Erik Caucheteur, Christophe
Published in
Biosensors & bioelectronics
An electro-plasmonic biosensor is used to attract proteins and cells on the surface of a fiber optic probe by controlled biomolecular migration. Concentrating targets on a high performance plasmon-assisted fiber grating sensor leads to a drastic enhancement of the limit of detection. This architecture relies on a biofunctionalized gold coated tilte...
Nikitina, Vita N Karastsialiova, Alena R Karyakin, Arkady A
Published in
Biosensors & bioelectronics
We report on the amperometric second-generation glucose test strips with the linear calibration range covering blood glucose concentrations. Chitosan membrane was used for immobilization of both enzyme and mediator in a single step. Optimal chitosan concentration in membrane-forming mixture corresponds to the highest enzyme activity and dramaticall...
Ansah, Iris Baffour Lee, Soo Hyun Yang, Jun-Yeong Mun, ChaeWon Jung, Sunghoon Jung, Ho Sang Lee, Min-Young Kang, Taejoon Lee, Seunghun Kim, Dong-Ho
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Published in
Biosensors & bioelectronics
Nanoscale plasmonic hotspots play a critical role in the enhancement of molecular Raman signals, enabling the sensitive and reliable trace analysis of biomedical molecules via surface-enhanced Raman spectroscopy (SERS). However, effective and label-free SERS diagnoses in practical fields remain challenging because of clinical samples' random adsorp...
