Ultrasensitive one-step rapid visual detection of bisphenol A in water samples by label-free aptasensor

Mei, Zhanlong; Chu, Hsin‐Sen; Chen, Wei; Xue, Feng; Liu, Jian; Xu, Hua‐Neng; Zhang, Rui; Zheng, Lei

doi:10.1016/j.bios.2012.06.027

Cited by 184 publications

(95 citation statements)

References 32 publications

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“…Delivery system 174 or are in high ionic strength media. Although this may be interesting for colorimetric detection of gold, it may also lead to premature failures of those devices.…”

Section: Entrymentioning

confidence: 99%

Recent applications of the combination of mesoporous silica nanoparticles with nucleic acids: development of bioresponsive devices, carriers and sensors

Castillo¹,

Baeza²

2017

Biomater. Sci.

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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. Much is the importance of those gene-keeping biomacromolecules that even nanomaterials have succumbed to the claimed benefits of DNA and RNA. Currently, there could be found in the literature a practically intractable number of examples which report the use in combination of nanoparticles with nucleic acids, which demands boundedness. Following this premise, this revision will only cover the most recent and powerful strategies developed to exploit the possibilities of nucleic acids as biotechnological materials when in combination with mesoporous silica nanoparticles. The extensive research done on nucleic acids has significantly incremented the technological possibilities for those biomacromolecules, which could be employed in many different applications; where substrate or sequence recognition or modulation of biological pathways due to its coding role in living cells are the most promising. In the present revision, the chosen counterpart, mesoporous silica nanoparticles, also with unique properties, became a reference material for drug delivery and biomedical applications due to their high biocompatibility and porous structure suitable for hosting and delivering small molecules. Although most of revisions deal with significant advances in the use of nucleic acid and mesoporous silica nanoparticles in biotechnological applications, a rationale classification of those new generation hybrid materials is still uncovered. Along this review there will be covered promising strategies for living cell and biological sensors, DNA-based molecular gates with targeting, transfection or silencing properties which could provide a significant advance of current nanomedicine.

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“…Delivery system 174 or are in high ionic strength media. Although this may be interesting for colorimetric detection of gold, it may also lead to premature failures of those devices.…”

Section: Entrymentioning

confidence: 99%

Recent applications of the combination of mesoporous silica nanoparticles with nucleic acids: development of bioresponsive devices, carriers and sensors

Castillo¹,

Baeza²

2017

Biomater. Sci.

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“…AuNPs should be treated because untreated ones show no color change after binding the target. However, this pretreatment doesn't intervene in detection optimization [76]. Intriguingly, while adding aptamer to AuNPs, there is no change in surface SPR absorption peak and stays 520 nm at UV-VIS spectra.…”

Section: Merits Of Aptamer-based Techniquesmentioning

confidence: 99%

Current Advances and Prospects on Implementation of Highly Sensitive Aptamer-based Dual System for Melamine Detection: New Promising Tool of Great Affinity

Ndikubwimana¹

2015

J Bioprocess Biotech

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“…In previous studies, we have successfully used AuNPs-based colorimetric strategies to develop rapid detection methods for melamine and bisphenol in food samples, respectively [13,14]. Also, the use of chemical initiated aggregation of AuNPs has attracted considerable interest for colorimetric detection of mercury ions [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Rapid and ultrasensitive colorimetric detection of mercury(II) by chemically initiated aggregation of gold nanoparticles

Chen

Deng

et al. 2015

Microchim Acta

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The article describes a method for rapid and visual determination of Hg(II) ion using unmodified gold nanoparticles (Au-NPs). It involves the addition of Au-NPs to a solution containing Hg(II) ions which, however, does not induce a color change. Next, a solution of lysine is added which induces the aggregation of the Au-NPs and causes the color of the solution to change from wine-red to purple. The whole onsite detection process can be executed in less than 15 min. Other amines (ethylenediamine, arginine, and melamine) were also investigated with respect to their capability to induce aggregation. Notably, only amines containing more than one amino group were found to be effective, but a 0.4 μM and pH 8 solution of lysine was found to give the best results. The detection limits for Hg (II) are 8.4 pM (for instrumental readout) and 10 pM (for visual read-out). To the best of our knowledge, this LOD is better than those reported for any other existing rapid screening methods. The assay is not interfered by the presence of other common metal ions even if present in 1000-fold excess over Hg(II) concentration. It was successfully applied to the determination of Hg(II) in spiked tap water samples. We perceive that this method provides an excellent tool for rapid and ultrasensitive on-site determination of Hg(II) ions at low cost, with relative ease and minimal operation.

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Ultrasensitive one-step rapid visual detection of bisphenol A in water samples by label-free aptasensor

Cited by 184 publications

References 32 publications

Recent applications of the combination of mesoporous silica nanoparticles with nucleic acids: development of bioresponsive devices, carriers and sensors

Recent applications of the combination of mesoporous silica nanoparticles with nucleic acids: development of bioresponsive devices, carriers and sensors

Current Advances and Prospects on Implementation of Highly Sensitive Aptamer-based Dual System for Melamine Detection: New Promising Tool of Great Affinity

Rapid and ultrasensitive colorimetric detection of mercury(II) by chemically initiated aggregation of gold nanoparticles

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