UV-radiation-induced formation of gold nanoparticles in a three-dimensional polymer matrix

Zapadinskii, B. I.; Kotova, A. V.; Матвеева, И. А.; Pevtsova, L. A.; Stankevich, A. O.; Шашкова, В. Т.; Barachevskii, V. A.; Dunaev, A. A.; Timashev, P. S.; Баграташвили, В. Н.

doi:10.1134/s1990793110050258

Cited by 10 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3b) show that these particles represent themselves particles of Au. They are formed in the volume of impregnated sample as a result of laser photo-decomposition of H[AuCl 4 ]•4H 2 O precursor and subsequent diffusive assembling of atoms [6]. The spectral curve 2 at 580 nm is typical for the plasmon resonance band of spherical Au nanoparticles < 10 nm in size [11][12][13][14][15][16][17].…”

Section: Resultsmentioning

confidence: 99%

“…One of the prospective approaches to the fabrication of such materials is based on photolysis of metal precursors incorporated into a volume of optical material (for example, polymer or porous glass) [2][3][4][5][6][7]. Such photolysis stimulates detachment of atoms (Ag and Au, in particular) from appropriate metal precursor and further diffusive atomic assembling of metal nanoparticles in an internal free volume of material, while the patterning with nanoparticles is determined by the spatial structure and parameters of incident laser light.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Self-organization of filaments from Au particles in transparent solids, stimulated by laser photolysis of incorporated Au precursor

et al. 2011

View full text Add to dashboard Cite

Continuous wave (CW) laser (473 nm in wavelength, 10 – 50 mW in power) irradiation of porous glass (Vycor) and polymer (cross-linked olygourethane-methacrylate) samples impregnated with Au precursor (H[AuCl4]⋅4H2O), stimulates formation of filamentary tracks from Au nanoparticles (5–90 μm in thickness and up to 5 mm in length), which are growing along a laser beam axis. Such filaments are growing both in the course of laser irradiation, and as a result of diffusive post-radiation effects. In Vycor glass sample each single filament represents itself a quasi-periodic sequence of granules composed of Au nanoparticles aggregates 10 – 30 μm in size, while in polymer sample the granules are non-periodic and are not so clearly pronounced. The observed effect of a low intensity CW laser formation of filaments from Au particles is rationalized by self-organization effects of several types, taking place at the formation of Au nanoparticles (with a strong plasmon resonance) and their micron-sized aggregates. The self-consistent processes of laser light filamentation and growing of filamentary tracks of Au nanoparticles aggregates are clearly revealed in such system.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Self-organization of filaments from Au particles in transparent solids, stimulated by laser photolysis of incorporated Au precursor

et al. 2011

View full text Add to dashboard Cite

show abstract

“…It is worth noting that the initial solution of NSes contained the stabilizer sodium dioctyl sulfosuccinate, which is why the dou-ble (DMG-NS) and triple (DMG-PL-NS) systems contained the abovementioned stabilizer. The NGs were obtained via photoreduction of the precursor (hydrogen tetrachloroaurate(III) or sodium tetrachloroaurate(III)) in the presence of PL [19]. This is why only the activity of triple systems was studied for NGs.…”

Section: Photochemistry and Magnetochemistrymentioning

confidence: 99%

Effect of Pluronic F127 on the photosensitizing properties of dimegine in the presence of nanoparticles

Aksenova

Kardumyan

Глаголев

et al. 2015

Russ. J. Phys. Chem.

Self Cite

View full text Add to dashboard Cite

It is shown that the activity of the water-soluble porphyrin photosensitizer dimegine (DMG) in the oxidation reaction of tryptophan, a test reaction for photodynamic therapy (PDT), can be enhanced by introducing silver, gold, and hydroxyapatite nanoparticles (NP) into the reaction medium if an amphiphilic polymer (AP) with the properties of a SAS is introduced into this mixture. It is concluded that the effect of enhancing the photosensitizing activity of dimegine is due to the formation of nanoparticle-Pluronic-porphyrin triple systems in which Pluronic (PL) plays the role of a bridge, forming complex and adsorption bonds with porphyrin and nanoparticles.

show abstract

Dynamics of laser excited colloidal gold nanoparticles functionalized with cysteine derivatives

Fălămaș¹,

Toşa²,

Toşa³

2015

Journal of Quantitative Spectroscopy and Radiative Transfer

View full text Add to dashboard Cite

UV-radiation-induced formation of gold nanoparticles in a three-dimensional polymer matrix

Cited by 10 publications

References 14 publications

Self-organization of filaments from Au particles in transparent solids, stimulated by laser photolysis of incorporated Au precursor

Self-organization of filaments from Au particles in transparent solids, stimulated by laser photolysis of incorporated Au precursor

Effect of Pluronic F127 on the photosensitizing properties of dimegine in the presence of nanoparticles

Dynamics of laser excited colloidal gold nanoparticles functionalized with cysteine derivatives

Contact Info

Product

Resources

About