Materials Literature
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Thiolate-protected gold nanoclusters have attracted considerable attention as building blocks for new functional materials and have been extensively researched. Some studies have reported that changing the ligand of these gold nanoclusters from thiolate to selenolate increases cluster stability. To confirm this, in th…
This article describes a systematic study of the nucleation and growth of Ag (and Au) on Pd nanocrystal seeds. By carefully controlling the reaction kinetics, the newly formed Ag atoms could be directed to selectively nucleate and then epitaxially grow on a specific number (ranging from one to six) of the six faces on…
Global environmental concern, regarding the use of petroleum-based packaging materials, is encouraging researchers and industries in the search for packaging materials from natural biopolymers. Bioactive packaging is gaining more and more interest not only due to its environment friendly nature but also due to its pot…
This feature article introduces our recent work on understanding the roles played by citrate and poly(vinyl pyrrolidone) (PVP) as capping agents in seed-mediated syntheses of Ag nanocrystals with controlled shapes. We have demonstrated that citrate and PVP selectively bind to Ag(111) and Ag(100) surfaces, respectively…
Graphene quantum dots (GQDs) synthesized by a direct chemical method have been used in combination with ZnO nanowires (NWs) to demonstrate their potential as a solar harvesting material in photovoltaic cells exhibiting an open circuit voltage of 0.8 V. The excited state interaction between the photoexcited GQDs and th…
The fullerenes, carbon nanotubes, and graphene have enriched the family of carbon allotropes over the last few decades. Synthetic carbon allotropes (SCAs) have attracted chemists, physicists, and materials scientists because of the sheer multitude of their aesthetically pleasing structures and, more so, because of the…
Titanium dioxide nanoparticles (TiO2 NPs) have potential applications as food additives, but concerns persist about their safety. Children are identified as having the highest exposure and may face the greatest health risks. However, the toxicological sensitivity of TiO2 NPs in different ages is not clear. Here, a com…
Rapid, sensitive, and selective detection of explosives such as 2,4,6-trinitrotoluene (TNT) and 2,4,6-trinitrophenol (TNP), especially using a facile paper sensor, is in high demand for homeland security and public safety. Although many strategies have been successfully developed for the detection of TNT, it is not ea…
The morphology of graphene is crucial for its applications, yet an adequate theory of its growth is lacking: It is either simplified to a phenomenological-continuum level or is overly detailed in atomistic simulations, which are often intractable. Here we put forward a comprehensive picture dubbed nanoreactor, which d…
Graphene is an atomically thin, two-dimensional allotrope of carbon with exceptionally high carrier mobilities, thermal conductivity, and mechanical strength. From a chemist's perspective, graphene can be regarded as a large polycyclic aromatic molecule and as a surface without a bulk contribution. Consequently, chemi…
Oxidative stress is caused predominantly by accumulation of hydrogen peroxide and distinguishes inflamed tissue from healthy tissue. Hydrogen peroxide could potentially be useful as a stimulus for targeted drug delivery to diseased tissue. However, current polymeric systems are not sensitive to biologically relevant c…
Metal nitrides have received increasing attention as electrode materials for high-performance supercapacitors (SCs). However, most of them are suffered from poor cycling stability. Here we use TiN as an example to elucidate the mechanism causing the capacitance loss. X-ray photoelectron spectroscopy analyses revealed…
Utilisation de nanoparticules pour délivrer des protéines dans les épithéliums respiratoires. Caractérisation des mécanismes impliqués. L’administration de médicaments par les voies respiratoires humaines est un domaine de la recherche en pleine expansion. Un effort croissant est porté sur le développement de systèmes…
[ANGLÈS] Here we show that a split-ring resonator, a structure widely known for its magnetic response at optical frequencies, can be used as a robust, unidirectional and broadband nanoantenna. By customizing its dimensions we demonstrate both numerically and experimentally that a quantum emitter can be efficiently cou…
Abstract. The mathematical modelling of the dynamics of particle suspension is based on the population balance equation (PBE). PBE is an integro-differential equation for the population density that is a function of time t, space coordinates and internal parameters. Usually, the particle is characterized by a unique p…
International audience
Pojęcie nanotechnologia obejmuje materiały i urządzenia o wymiarach od 1 do 100 nanometrów. W laboratoriach na całym świecie trwają bardzo intensywne prace nad nanostrukturami, jednak większość projektów wynikających z rozwoju nanotechnologii jest ciągle w trakcie badań. Nanomateriały mogą mieć odmienne właściwości ni…
de Física, Pontifícia Universidade Católica do Rio de Janeiro.Nanotubo de Carbono é um alótropo do Carbono cujo caráter 1D confere-lhe propriedades mecânicas, eletrônicas, térmicas, ópticas excepcionais.Por isso que cientistas têm estudado este material intensamente, tanto do ponto de vista teórico, como de um ponto d…
RETURN TO ISSUEPREVAdvertisementNEXTFaster methods with ALL LC systemsCite this: Chem. Eng. News 2012, 90, 36, 20Publication Date (Print):September 3, 2012Publication History Published online29 March 2013Published inissue 3 September 2012https://doi.org/10.1021/cen-09036-ad12Copyright © 2012 Chemical & Engineering New…
Small is the very best interdisciplinary forum for all experimental and theoretical aspects of fundamental and applied research at the micro and nano length scales.With an ISI impact Factor of 8.349 and publishing every two weeks in 2012 with papers online in advance of print, Small is your first-choice venue for top-…