Nonlinear optical properties of biomineral and biomimetical nanocomposite structures

Kulchin, Yu. N.; Bezverbny, Alexander V.; Букин, О. А.; Voznesensky, S. S.; Golik, S. S.; Mayor, A. Yu.; Shchipunov, Yu. A.; Nagorny, I. G.

doi:10.1134/s1054660x11050136

Cited by 13 publications

(10 citation statements)

References 17 publications

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“…This study extends a number of novel biomimetic organicinorganic hybrids possessing high nonlinear susceptibility that was found previously for polysaccharide-silica nanocomposites in [4]. Here, we demonstrated additionally that the optical nonlinearity can be regulated by trace amounts of gold nanoparticles.…”

Section: Discussionsupporting

confidence: 86%

“…They have unique optical properties that are controlled through sophisticated structural organization of biosilica [1][2][3]. In particular, their optical nonlinearity is higher than that of quartz fibers [4]. We also showed in this work that the hybrid polysaccharide-silica nanocomposites prepared by biomimicking mineralization demonstrated similar high third-order nonlinear susceptibility.…”

Section: Introductionsupporting

confidence: 57%

“…The optical nonlinearity of the developed hybrid HBPsilica nanocomposites was examined by means of the standard Z-scan technique [4,10]. As found, the nonlinear refractive index n 2 is equal to 2.5 × 10 −13 cm 2 /W at λ = 532 nm and a pulse duration of 5 ns.…”

Section: Theosmentioning

confidence: 90%

“…A schematic drawing of the experimental setup is presented in Figure 3a. More details are given in our article [4]. When an unfocused laser beam of 7 mm in diameter with maximum energy of a pulse of 1 mJ comes through a sample, an appearance of multiple distinct filaments is observed in its bulk (Figure 3b).…”

Section: Theosmentioning

confidence: 97%

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Tailored hybrid hyperbranched polyglycidol-silica nanocomposites with high third-order nonlinearity

et al. 2012

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One of the most convenient techniques for optical material fabrication is the sol-gel processing. It can be performed at low temperature that enables one to entrap even relatively unstable organic substances into silica matrix at the nanometer scale, thus developing homogeneous hybrid organic-inorganic nanocomposite materials of various functionalities. Here, novel hybrid organic-inorganic nanocomposites with good optical transparency and high third-order nonlinearity were prepared biomimetically through the mineralization of dendritic macromolecules (hyperbranched polyglycidols) using a compatible ethylene glycol-containing silica precursor. The synthesis was performed at neutral pH media in aqueous solutions without addition of organic solvents at ambient conditions owing to the catalysis of processing. Polyglycidols provided also the formation of gold nanoparticles localized in their core. They served as reducing and stabilizing agents. It is shown that trace amounts of nanoparticles could regulate nonlinear properties of a nanocomposite. High nonlinearity manifests itself in a supercontinuum generation at remarkably short lengths ca. 1 mm. The phenomenon consists of filamentous intense white lighting due to the spectral broadening of initial ultrashort (femtosecond) laser pulses propagating through the material. The developed hybrid nanocomposites possessing large nonlinearity, high-speed optical response, stability under intense lighting, lowcost, and easy preparation are promising for a diverse range of applications as active components for all-optical signal processing from chemical sensing to biological cell imaging and lighting control in telecommunication.

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Section: Discussionsupporting

confidence: 86%

Section: Introductionsupporting

confidence: 57%

Section: Theosmentioning

confidence: 90%

Section: Theosmentioning

confidence: 97%

See 2 more Smart Citations

Tailored hybrid hyperbranched polyglycidol-silica nanocomposites with high third-order nonlinearity

et al. 2012

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“…is achieved by an organo-silica layered microarchitecture and by not cementing basalia into a rigid framework as it often occurs in the body (e.g. Sarikaya et al, 2001;Aizenberg et al, 2005;Ehrlich et al, 2005Ehrlich et al, , 2006Kul'chin et al, 2011;Dericioglu et al, 2012). In Euplectella aspergillum anchoring spicules have a higher organic content and are more hydrated at the core than at the surface (Aizenberg et al, 2004).…”

Section: Colonizing Sediments -The Need To Be Anchoredmentioning

confidence: 99%

Happy relationships between marine sponges and sediments – a review and some observations from Australia

Schönberg

2015

J. Mar. Biol. Ass.

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Being sessile filter feeders, sponges may be disadvantaged by sediments in many ways, e.g. through clogging and burial. However, in order to correctly recognize negative effects of sediments in the field, natural relationships of sponge taxa adapted to a life with sediments need to be understood. The present publication reviews available literature and provides observations on natural and beneficial interactions of sponges with sediments, distinguishing several strategies: (1) Saving energy through sediment incorporation, reducing or replacing spicule production commonly occurs in keratose, verongimorph, tethyid and poecilosclerid sponges, which often received scientific names referring to sediments. (2) Forming sediment crusts externally or embedded in surface tissues reinforces outer layers, provides shade, and for external crusts camouflage and shelter from spongivory and desiccation. External crusts often occur in the tethyids and axinellids, while surface armour is most common in keratose sponges. (3) Anchoring in soft sediments provides a selective advantage for space colonization. This is mainly achieved in the hexactinellid, polymastiid and spirophorine sponges by using spicules (predominantly in deeper water), commonly in endopsammic sponges by rootlets, basal agglutination and basal incorporation of particles, and in various groups by attachment to buried materials (shallow water). (4) Living at least partially embedded in sediments (psammobiosis) appears to be best developed inOceanapiaspp. and bioeroding sponges, generates shelter from various external conditions and reduces the risk of spongivory. Typical morphological characters of sediment-adapted sponges are thus sediment skeletons and surface crusts (reinforcement), stalks and fistules (elevation above sediments), spicule tufts and root-systems (anchoring).

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Nanotechnology – from a Marine Discovery Perspective

Santhosh

Amarendra

2015

Hb25_Springer Handbook of Marine Biotechnology

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Nonlinear optical properties of biomineral and biomimetical nanocomposite structures

Cited by 13 publications

References 17 publications

Tailored hybrid hyperbranched polyglycidol-silica nanocomposites with high third-order nonlinearity

Tailored hybrid hyperbranched polyglycidol-silica nanocomposites with high third-order nonlinearity

Happy relationships between marine sponges and sediments – a review and some observations from Australia

Nanotechnology – from a Marine Discovery Perspective

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