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1 article(s) from Rana, Khyati

Selective detection of Mg²⁺ ions via enhanced fluorescence emission using Au–DNA nanocomposites

Tanushree Basu,
Khyati Rana,
Niranjan Das and
Bonamali Pal

Beilstein J. Nanotechnol. 2017, 8, 762–771, doi:10.3762/bjnano.8.79

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Scheme 1: Au–DNA nanocomposite interactions with Mg²⁺, Ca²⁺ and Fe²⁺ ions.

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Figure 1: Surface plasmon absorption band of (a) Au nanospheres and (b) Au nanorods before and after DNA modi...

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Figure 2: Circular dichroism spectral changes in the DNA conformation upon binding with (a) Au nanospheres an...

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Figure 3: TEM images of bare (a) AuNSs, (b) AuNRs, (c) AuNS–DNA and (d) AuNR–DNA nanocomposites.

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Figure 4: Dynamic light scattering particle size distribution of bare and DNA modified (a,b) AuNS-1, (c,d) Au...

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Figure 5: AFM images of (a,b) AuNS 1-DNA nanocomposites and (c,d) AuNR–DNA nanocomposites showing height and ...

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Figure 6: 3D AFM images of Au–DNA nanocomposites of (a) AuNSs and (b) AuNRs.

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Figure 7: Variation in zeta potential of AuNPs before and after DNA modification.

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Figure 8: Fluorescence emission intensity of bare (a) AuNPs, (b) DNA and (c) AuNP–DNA composites.

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Figure 9: Change in fluorescence intensity for a sample with (a) Fe²⁺ and Ca²⁺ ions and (b) Mg²⁺ ions, with a...

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Figure 10: (a) Fluorescence intensity of Au–DNA nanocomposites with increasing concentration (ppm) of Mg²⁺ and...

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Figure 11: Fluorescence emission of an aqueous solution of Mg²⁺ ions in Sample 1 (50 ppm), Sample 2 (150 ppm),...

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Figure 12: Measured concentration of Mg²⁺ ions in real life samples. The error bars represent ±5% error.

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Published 03 Apr 2017

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Selective detection of Mg2+ ions via enhanced fluorescence emission using Au–DNA nanocomposites

Selective detection of Mg²⁺ ions via enhanced fluorescence emission using Au–DNA nanocomposites