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Autor:
Lei Qin, Min Cheng, Dawei Huang, Guangming Zeng, Piao Xu, Xigui Liu, Danlian Huang, Chen Zhang, Huan Yi, Cui Lai
Publikováno v:
Microchimica Acta. 184:2097-2105
The authors describe a colorimetric assay for the quantitation of antibiotic kanamycin. It is based on hydrogen-bonding recognition capability of gold nanoparticles (AuNPs) in a chitosan matrix. Hydrogen-bonding interaction between kanamycin and chit
Publikováno v:
Microchimica Acta. 185
A competitive colorimetric assay has been established to detect chloramphenicol (CAP). It is based on the use of colloidal and electrostatically stabilized aptamer-modified gold nanoparticles (GNPs). The CAP aptamer is modified by a sequence of 5 ade
Autor:
Seyed Mohammad Taghdisi, Mohammad Hassanzadeh Khayyat, Bibi Sedigheh Fazly Bazzaz, Khalil Abnous, Vahid Soheili, Mohammad Ramezani
Publikováno v:
Microchimica Acta. 183:1687-1697
Aptamers specific for the antibiotic streptomycin were identified by a modified SELEX procedure that employs magnetic beads. After eight rounds of selection, twenty-six aptamers were identified and clustered into seven groups according to similaritie
Publikováno v:
Microchimica Acta. 185
The authors are presenting a rapid method for the determination of theophylline using unique non-crosslinking gold nanoparticle (AuNP) aggregation. An RNA aptamer against theophylline is firstly split into two RNA fragments which then interact with b
Publikováno v:
Microchimica Acta. 185
A magnetic bead-based SELEX was applied to identify 37 single-stranded DNA aptamers specific for tobramycin after ten rounds of selection. The aptamers were classified into nine families according to sequence analysis. Among them, several aptamers wi
Publikováno v:
Microchimica Acta. 182:1501-1507
The colorimetric assay for neomycin presented here is based on melamine-modified gold nanoparticles (mel-AuNPs) and the finding that hydrogen bonding between melamine and neomycin results in the aggregation of mel-AuNPs. This results in a change in t