The hierarchically directed assembly of multiple types colloidal nano-objects on surfaces is interest for developing disruptive applications combining their original properties. We propose herein a versatile, electrostatically driven strategy to arrange various kinds colloids vertically in the shape 3D micropatterns by nanoxerography. made proof concept this vertical combinatorial nano-object p...

Study of the Formation of Nano-Networks in Colloidal Particles Pooyath Lekshmy Venugopalan a , Gaurav Gupta b , Arijit Ghosh b , Haobijam Johnson Singh c , Greshma Nair a & Ambarish Ghosh a b c a Centre for Nanoscience and Engineering, Indian Institute of Science, Bangalore, India b Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, India c Department of...

We present results of electrochemical deposition of magnetic metals and alloys in the pores of templates prepared by self-assembly from colloidal suspensions of polystyrene latex spheres. This technique has enabled us to create highly ordered magnetic nano-structures with 3D architectures on length scales ranging from 50–1000 nm. Varying the parameters in the preparation (sphere diameter, film ...

The rich variety of densest columnar structures of identical hard spheres inside a cylinder can surprisingly be constructed from a simple and computationally fast sequential deposition of cylinder-touching spheres, if the cylinder-to-sphere diameter ratio is D is an element of [1,2.7013]. This provides a direction for theoretically deriving all these densest structures and for constructing such...

serious concerns have been expressed about potential health risks of nano silver containing consumer products (agnps) therefore regulatory health risk assessment on such nanoparticles has become mandatory for the safe use of agnpsinbiomedicalproducts with special concerns to the mutagenic potentials. in this study, we examined the inhibitory and mutagenicity effects of agnps in three different ...

Nano and colloidal particles (1-1000 nm) play important roles in phosphorus (P) migration loss from agricultural soils; however, little is known about their relative distribution arable crop soils under varying geolandscapes at the regional scale. Surface (0-20 cm depth) were collected 15 fields, including two sites with different carbon input strategies, Zhejiang Province, China, water-dispers...

Due to its unique optoelectronic properties, the quantum dot (QD) has become a promising material for realizing photonic components and devices with high quantum efficiencies. Quantum dots in colloidal form can have their surfaces modified with various molecules, which enables new fabrication process utilizing molecular self-assembly and can result in new QD photonic device structures in nano-s...

Graphene oxide (GO) nanocolloids-sheets with lateral dimension smaller than 100 nm-were synthesized by chemical exfoliation of graphite nanofibers, in which the graphene planes are coin-stacked along the length of the nanofibers. Since the upper size limit is predetermined by the diameter of the nanofiber precursor, the size distribution of the GO nanosheets is much more uniform than that of co...

This study examines the biological effects of water-soluble fullerene aggregates in an effort to evaluate the fundamental mechanisms that contribute to the cytotoxicity of a classic engineered nanomaterial. For this work we used a water-soluble fullerene species, nano-C60, a fullerene aggregate that readily forms when pristine C60 is added to water. Nano-C60 was cytotoxic to human dermal fibrob...