ConspectusThe assembly of individual colloidal nanocrystals into macroscopic solvogels and aerogels introduced a new exciting type material the class porous architectures. In these so-called nanocrystal gels, structure properties can be controlled fine-tuned to smallest details. Recently it was shown that by employing building blocks for such gel materials, interesting nanoscopic conserved or even expanded are available neither in nor their respective bulk materials. general, production...

The main objective of the present study was to increase specific surface area (SBET) graphitic carbon nitride (g-C3N4) prepared from dicyandiamide by effectively modifying synthesis procedure using Simplex optimization method. A remarkable in SBET achieved only a few steps, with highest value 86 m2/g. Compared reference material, improved photocatalyst exhibited enhanced and unique structural, textural, optical, electronic properties, reflected ability degrade variety organic pollutants...

Graphene covered metal nanoparticles constitute a novel type of hybrid material, which provides unique platform to study plasmonic effects, surface-enhanced Raman scattering (SERS), and metal–graphene interactions at the nanoscale. Such material is fabricated by transferring graphene grown chemical vapor deposition onto closely spaced gold produced on silica wafer. The morphology physical properties nanoparticle-supported are investigated atomic force microscopy, optical reflectance...

Functionalized nanoparticles (NPs) can penetrate into living cells and vesicles, opening up an extensive range of novel directions. For example, NPs are intensively employed in targeted drug delivery biomedical imaging. However, the real-time kinetics dynamics NP–living cell interactions remained uncovered. In this study, we situ monitored cellular uptake gold NPs—functionalized with positively charged alkaline thiol—into surface-adhered cancer cells, by using a high-throughput label-free...

Abstract 3D nanoparticle assemblies offer a unique platform to enhance and extend the functionality optical/electrical properties of individual nanoparticles. Especially, self‐supported, voluminous, porous macroscopic material built up from interconnected semiconductor nanoparticles provides new possibilities in field sensing, optoelectronics, photovoltaics. Herein, method is demonstrated for assembling systems containing building blocks possessing different composition, size, shape, surface...

Abstract Additive‐free cryoaerogel coatings from noble metal nanoparticles are prepared and electrochemically investigated. By using liquid nitrogen or isopentane as cooling medium, two different superstructures created for each type of nanoparticle. These materials (made the same amount particles) have superior morphological catalytic properties compared to simply immobilized, densely packed nanoparticles. The morphology all is investigated with scanning electron microscopy (SEM)....

Enhanced PEC water splitting with an α-Fe 2 O 3 /B-C N 4 type II heterojunction. Use of pyrolytic (p-)CNT to improve photoanodic current density. Improved electrical conductivity for facile charge separation & transfer. DFT hints at a Z-scheme mechanism.

Nanoparticle-based voluminous 3D networks with low densities are a unique class of materials and commonly known as aerogels. Due to the high surface-to-volume ratio, aerogels xerogels might be suitable for applications in different fields, e.g. photocatalysis, catalysis, or sensing. One major difficulty handling nanoparticle-based is defined patterning these structures on substrates surfaces. The automated manufacturing aerogel- xerogel-coated electrodes can easily realized via inkjet...

New hybrids were synthesised by linking carboranes and siloles, both of which are known as aggregation‐induced emission active units. Although most the newly systems do not display notable quantum yield either in solution or aggregated state, they emit strongly solid‐state, a up to 100% can be achieved. The tailorable attributed packing molecules crystal lattice ruled carborane phenyl moieties according SC‐XRD data. Our experimental results, complemented density functional theory...

Low-molecular weight polyethylene glycol (PEG) has a lower critical solution temperature well outside the boiling point of water at ambient pressure, but it can be reduced high ionic strengths. We extend this concept to trigger clustering gold nanoparticles through control colloidal interactions. At strengths, low-molecular (<2000 Da) mPEG-SH-modified show with an increase in temperature. The decreases increasing strength. is attributed delicate interplay between strength and elevated...

Abstract In this work, mixing and co‐gelation of Au nanoparticles (NPs) highly luminescent CdSe/CdS core/shell nanorods (NRs) are used as tools to obtain noble metal particle‐decorated macroscopic semiconductor gel networks. The hybrid nature the macrostructures facilitates control over optical properties: while holes trapped in CdSe cores, connected NRs support mobility excited electrons throughout porous, hyperbranched Due presence NPs mixed gels, electron trapping gold leads a suppressed...

Abstract Integration of noble metals into semiconductor‐based nanoparticle gel structures facilitates the extraction photoexcited charge carriers upon illumination. While carrier generation takes place in semiconductor component, contact to act as electron sinks. Thus, nature interface between components is essential importance, it dictates characteristics interparticle contact. Here, influence nanoscale building block design on dynamics cryoaerogels consisting CdSe/CdS nanorods and...

Abstract In the large field of research on nanoplatelets (NPLs), their strong tendency to self‐assemble into ordered stacks and resulting changes in properties are great interest. The assembly reveals new characteristics such as charge carrier transport through NPL or altered optical properties. particular, a reduced distance should enhance due higher electronic coupling neighboring NPLs, therefore, is focus this work. To modify inter‐particle distances, straightforward method ligand...

One of the main approaches for contact angle determination using sessile drops with a missing apex (e.g., because presence needle tip) is polynomial drop-profile fitting method. The major disadvantage this procedure that derived highly sensitive to order and number pixels involved in actual fit. In present work, an easily implementable method introduced effectively tackle these drawbacks. Instead itself, applied difference between drop profile circumcircle, independently both sides drop....

Along of widespread application anti-cancer drug Gefitinib (GEF), it appears in human body fluids as well clinical wastewater. Consequently, a reliable and easy-to-adapt detection technique is essential importance to quantify the different media. The extraction quantitative Gefinitib (GEF) demonstrated based on straightforward efficient magnetic nanoparticle-assisted preconcentration route from water plasma samples. Iron oxide nanoparticles (Fe3O4) have been prepared with an average particle...

Abstract Complex biological photocatalytic heteronanostructures were produced by the integration of different multicomponent Au–Cu 2 O nanoparticles (NPs) into blue-colored photonic nanoarchitectures occurring in wings male Polyommatus icarus butterflies. Both bare and conformally coated 15-nm ZnO atomic layer deposition used as substrates. The NPs characterized UV–visible spectroscopy, focus stacking optical microscopy, electron microscopy. After NPs, performance samples under visible light...

Abstract Cuprous oxide nanoparticles can be prepared with a great morphological control, and their composites gold nanostructures are intensively studied owing to catalytic performance. In this study, cuprous shell growth on nanosized prism‐shaped is investigated, where the core‐particle morphology does not match prototypical cubic or octahedral symmetry of embedding particle. It shown that different obtained depending reducing agent used for deposition. Strong (hydrazine) leads...

Colloidal Cu2O nanoparticles can exhibit both photocatalytic activity under visible light illumination and resonant Mie scattering, but, for their practical application, they have to be immobilized on a substrate. Butterfly wings, with complex hierarchical photonic nanoarchitectures, constitute promising substrate the immobilization of tuning optical properties. The native wax layer covering wing scales Polyommatus icarus butterflies was removed by simple ethanol pretreatment prior...

Macroscopic materials with nanoscopic properties have recently been synthesized by self-assembling defined nanoparticles to form self-supported networks, so-called aerogels. Motivated the promising of this class materials, search for versatile routes toward controlled assembly presynthesized into such ultralight macroscopic has become a great interest. Overcoating procedures colloidal polymers offer means produce aerogels from nanoparticles, regardless their size, shape, or while retaining...

Noble-metal-based electrocatalysts usually contain small nanoparticle building blocks to ensure a high specific surface area as the scene for processes. Here, we show that relatively large noble-metal nanorods are also promising candidates build up functional macrostructures with prominent electrocatalytic activity. After optimizing and upscaling syntheses of gold bipyramid-templated silver nanorods, cryoaerogels fabricated on conductive substrate via flash freezing subsequent freeze drying....

Decorating Cu 2 O nanooctahedra with small Au nanograins is a superior strategy to utilize photogenerated charge carriers without generating hot electrons. Photocatalytic activity in these heteronanoparticles improved even upon low-power excitation.

Colloidal interactions can modify the site-specific directed assembly of spherical particles and patchy nanorods.