Results 51 to 60 of about 8,074 (224)

Label-free detection of Cu(2+) and Hg(2+) ions using reconstructed Cu(2+)-specific DNAzyme and G-quadruplex DNAzyme. [PDF]

PLoS ONE, 2013
Label-free metal ion detection methods were developed. To achieve these, a reconstructed Cu(2+)-specific DNA-cleaving DNAzyme (Cu(2+)-specific DNAzyme) with an intramolecular stem-loop structure was used.
Hui Li, Xiao-Xi Huang, Yang Cai, Hao-Jie Xiao, Qiu-Fen Zhang, De-Ming Kong   +5 more
doaj   +1 more source

Recent applications on the combination of Mesoporous Silica Nanoparticles with Nucleic Acids: Development of Bioresponsive Devices, Carriers and Sensors [PDF]

, 2017
The discovery and control of the biological roles mediated by nucleic acids have turned them into a powerful tool for the development of advanced biotechnological materials.
Baeza, Alejandro, Castillo Romero, Rafael, Vallet Regí, María   +2 more
core   +2 more sources

On-site detection of fish furunculosis by combining DNAzyme and carboxyl-functionalized graphene

Frontiers in Chemistry, 2022
Furunculosis, which is caused by Aeromonas salmonicida, can induce septicemia, leading to the rapid death of fishes belonging to Salmonidae, Cyprinidae, and Fuscheridae, and lamprey. Targeting A.
Wen Ding, Wen Ding, Qingzhen Miao, Qingzhen Miao, Xiuli Bao, Xiuli Bao, Shiyuan Wang, Shiyuan Wang, Jing Lu, Jing Lu, Mingsheng Lyu, Mingsheng Lyu, Shujun Wang, Shujun Wang   +13 more
doaj   +1 more source

Tandem Phosphorothioate Modifications for DNA Adsorption Strength and Polarity Control on Gold Nanoparticles [PDF]

, 2014
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by publisher. To access the final edited and
Wenhu Zhou, Feng Wang, Jinsong Ding, Juewen Liu, Seeman N. C., Rosi N. L., Pinheiro A. V., Park S. Y., Nykypanchuk D., Aldaye F. A., Zhang T., Cheng W. L., Katz E., Cutler J. I., Liu J., Li D., Zhao W., Wang H., Wei M., Zhao Z., Mirkin C. A., Opdahl A., Pei H., Zhang X., Zhang X., Kimura-Suda H., Storhoff J. J., Liu J., Deleavey Glen F., Lee J. H., Pal S., Kumar A., Lee J. H., Ma N., Farlow J., Zhang D., Huang P.-J. J., Wang S., Nawrot B., Cunningham L. A., Zhang X., Zhang X., Bhatt N., Herdt A. R., Liu J. W., Wang W.   +45 more
core   +3 more sources

Entropy-driven catalysis triggered dual-DNAzyme-arms powered DNA walking platform for simple, sensitive, and enzyme-free microRNA analysis

Sensors and Actuators Reports
Conventional unipedal DNA walkers suffer from several limitations of low efficiency. In contrast, multipedal DNA walkers, which often operate freely beyond the loading surface, may exhibit reduced amplification efficiency due to uncontrolled movement. To
Ye Tian, Xinxi Li, Jingdong Tang, Lei Zhang, Huguo Wang, ZaiYing Yeerbao, Xiangxiang Ru, Bai Chao   +7 more
doaj   +1 more source

Aptamer based electrochemical sensors for emerging environmental pollutants [PDF]

, 2014
International audienceEnvironmental contaminants monitoring is one of the key issues in understanding and managing hazards to human health and ecosystems.
Akhtar Hayat, Jean L. Marty
core   +2 more sources

Mechanozyme: An Artificial Enzyme With a Mechanophore Framework

Advanced Science, EarlyView.
Mechanical destabilization of a G‐quadruplex mechanophore in a DNAzyme markedly boosts its catalytic activity, demonstrating “mechanozymes” as artificial enzymes whose functions are modulated by mechanical stress exerted by ultrasonication. This mechanozyme principle is broadly applicable to control biomolecular activities.
Jiahao Ji, Pravin Pokhrel, Sajan Shakya, Bishal Pokhrel, Grinsun Sharma, Pratiksha Chaudhary, Hao Shen, Hanbin Mao   +7 more
wiley   +1 more source

Visual detection of lead(II) using a label-free DNA-based sensor and its immobilization within a monolithic hydrogel [PDF]

, 2012
Lead is highly toxic and its detection has attracted a lot of research interests. In recent years, DNA has been used for Pb2+ recognition and many fluorescent sensors with low to sub-nM detection limits have been reported.
Jacobi, Zachary E., Li, Lu, Liu, Juewen
core   +1 more source

Allosteric DNAzyme‐Enabled Sensitive and Multiplex Detection of Biomarkers for Rapid Diagnosis of Urinary Tract Infections

Advanced Science, EarlyView.
A catalytic allosteric DNAzyme assay (SMART) is developed by engineering DNAzyme into a unimolecular biosensor, enabling highly sensitive and multiplex detection of small molecules and nucleic acids. SMART enables extraction‐free, one‐pot, one‐step, isothermal, and cost‐effective detection of biological markers, achieving >95% accuracy for rapid ...
Yanzhe Shen, Chenzhi Shi, Xiaowei Ma, Pengfei Hou, Haomin Zhang, Juanxiu Qin, Li Pan, Guilin Li, Lifei Gao, Qian Ma, Donglei Yang, Min Li, Pengfei Wang   +12 more
wiley   +1 more source

Target recycling product-bridged DNAzyme walker for sensitive detection of microRNA

Journal of Analytical Science and Technology
The precise and sensitive detection of miRNA is significant for assessing infectious illnesses, particularly pneumonia. However, constrained by the low abundance of miRNA in samples, the majority of miRNA detection approaches employing a one-to-one ...
Ning Pan, Xiangao Jiang, Weixia Qiu, Xiaxia Qiu, Xinchun Ye, Saiduo Liu   +5 more
doaj   +1 more source