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2 article(s) from Soni, Sanjeev

Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels

Nabojit Das,
Vikas,
Akash Kumar,
Sanjeev Soni and
Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56

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Figure 1: (a) Seed-mediated synthesis of CTAB-AuNM, MTAB-AuNM, and DTAB-AuNM, a two-step reduction method sho...

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Figure 2: Stability of AuNMs (CTAB-AuNM, MTAB-AuNM, and DTAB AuNM) in different media at the ratio (NPs:media...

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Figure 3: (a) k-CG hydrogel beads (HB) without AuNMs and with incorporated AuNMs; (b), (c), and (d) show stab...

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Figure 4: TEM micrographs along with histograms showing morphology and size (length) of (a) CTAB-AuNM, (b) MT...

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Figure 5: (a) FTIR spectra of CTAB-AuNM, MTAB-AuNM, and DTAB-AuNM, respectively. (b) XRD diffractogram showin...

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Figure 6: Growth mechanism of gold nanomakura particles (AuNM). (a) AuNM surrounded by surfactant micelles; (...

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Figure 7: (a) Seed-mediated synthesis of CTAB-capped AuNR. (b) Seedless synthesis of DTAB-capped AuNR. (c) Ab...

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Figure 8: Anisotropic gold nanoparticles showing photothermal response of: (a) CTAB-AuNM, MTAB-AuNM, and DTAB...

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Figure 9: (a) Temporal variation in the corresponding temperatures on photothermal interaction with a visible...

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Figure 10: Thermal images showing photothermal response in (a) DTAB-AuNR and (b) CTAB-AuNR after incorporation...

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Figure 11: Thermal images showing photothermal response in (a) CTAB-AuNM, (b) MTAB-AuNM, and (c) DTAB-AuNM aft...

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Published 07 Jun 2024

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Concentration-dependent photothermal conversion efficiency of gold nanoparticles under near-infrared laser and broadband irradiation

Vikas,
Raj Kumar and
Sanjeev Soni

Beilstein J. Nanotechnol. 2023, 14, 205–217, doi:10.3762/bjnano.14.20

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Figure 1: Experimental setup for the measurement of the temperature rise of GNPs suspensions under irradiatio...

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Figure 2: Measured spectral output of the NIR broadband light source.

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Figure 3: Measured beam profiles of (a) laser and (b) broadband light sources.

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Figure 4: Spectral absorbance of different concentrations of nanoparticles. (a) 40 nm GNSs, (b) 25 × 47 nm GN...

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Figure 5: Concentration-dependent variation of the absorbed optical power for (a) 40 nm GNSs, (b) 25 × 47 nm ...

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Figure 6: Temporal variation of the suspension temperature (heating and cooling) for different nanoparticle c...

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Figure 7: Heating and cooling temperature profiles for 40 nm GNSs, 25 × 47 nm GNRs, 10 × 38 nm GNRs, and 10 ×...

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Figure 8: Photothermal conversion efficiency of 40 nm GNSs, 25 × 47 nm GNRs, 10 × 38 nm GNRs, and 10 × 41 nm ...

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Figure 9: Photothermal conversion efficiency of different nanoparticle concentrations for (a) 40 nm GNSs, (b)...

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Figure 10: Concentration-dependent photothermal conversion efficiency of 10 × 41 nm GNRs irradiated with optic...

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Published 06 Feb 2023

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