Sol-gel nanocomposites for optical applications

Synthesis of pure and doped nano-calcium phosphates using different conventional methods for biomedical applications: a review

“…9,177 Many different types of materials such as nanoporous oxides, nanoscale architectures, including nanomaterials, nanocoating, organic–inorganic hybrids, monolithic structures, metal–organic frameworks, bioinspired materials, glasses, and amorphous composites have been prepared using a conventional sol–gel method for a few decades. 178–228 The sol–gel method was employed to successfully produce nanosized HAp particles and effects of doping is given in Table 6. This was achieved by utilizing various calcium and phosphorous precursors, including Ca(OH) 2 , in a solution composed of ethanol and water, as well as phosphoric acid (H 3 PO 4 ), at a pH of 11.…”

Hybrid composite of gold nanoparticles with polyacrylamide hydrogel: one-step synthesis, preparation of plasmon films, characterization

“…Due to the local surface plasmon resonance (SPR) arising in nanometer-sized metal particles under the action of light, Au NPs are able to absorb, concentrate, scatter, redistribute and transform (convert) photon energy [3,[6][7][8]. In this respect, Au NPs in hybrid composites may act as optical sensors (probes) for reagents and media [2,3,[7][8][9][10], substrates for SERS [3,5,9], contrast agents for visualization of nano-and micrometer-sized objects [2,3,8], optical lters [9], as photocatalytic and photothermal triggers of physicochemical and mechanical processes at the micro level [2,3,8,12]. In addition, they may serve as light guides due to plasmon interactions [1,6,8,10], and render electrical conduction to materials due to the metal nature of the cores [11].…”

“…Hydrogels described in publications are based on polyaniline [14], cellulose [18,19], DNA [8,12], polyanhydride (polifeprosan 20) [20], organosilicon polymers [7,9]. Many studies deal with the hydrogels based on the derivatives of polyacrylamide (PAAm) [15][16][17]21] and their composites with Au NPs [2,4,5,10,22].…”

Investigations on the Impact of a Series of Alkoxysilane Precursors on the Structure, Morphology and Wettability of an Established Zirconium-Modified Hybrid Anticorrosion Sol–Gel Coating

“…Nowadays, there is an ever-increasing request for the development of innovative multifunctional hybrid materials for a wide range of applications, including optical devices [1][2][3][4][5], (bio)sensors [6][7][8] and protective coatings [9][10][11]. Thanks to the unique combination of organic and inorganic compounds, hybrid materials offer unlimited possibilities for the development of multifunctional materials [12].…”