Materials Literature
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A casein assay has been developed with aggregation induced emission character of BSPOTPE, which is a derivative of tetraphenylethene (TPE). The method exhibits a wide dynamic range of detection for casein from 10 μg ml(-1) to 5000 μg ml(-1), and a good linear range from 20 μg ml(-1) to 1250 μg ml(-1). With sample-pret…
Nanoparticle doped hybrid organogels were prepared using the pseudopeptidic macrocycle 1 and CdSe/ZnS quantum dots (QDs). The new semi-solid materials show the same thermal stability and excellent optical transparency as compared to the parent organogel in the absence of the nanoparticles, but they are fluorescent due…
A hysteretic spin transition is induced in a solution assembly of a mononuclear Fe(III) amphiphilic complex which exhibits only gradual spin crossover in the solid state. The hysteretic behavior is dependent on dynamic solution assembly and removal of solvent causes reversion to the original bulk solid magnetic respon…
We report large-scale interdigitated supercapacitor chips based on pseudo-capacitive metal oxide electrodes. A novel method is presented, which provides a powerful fabrication technology of interdigitated supercapacitors operated by a pseudo-capacitive reaction. Also, we empirically develop an equation that describes…
Holographically featured SU-8 polymer surfaces exhibited anisotropic wetting by water droplets, due to liquid pinning at the edges of the top rods in 3D woodpile structures. Square nanopillar array surfaces (tip size, 30 nm) resulting from SF6 plasma treatment showed ultrahydrophobicity, with advancing and receding co…
The synthesis of strontium ferrite SrFeO(3-δ) has been explored through wet-chemistry methods in order to optimize a quick, easy and reproducible method to obtain the perovskite in pure crystalline form with a high yield. Among the three investigated synthetic paths, (i) coprecipitation of hydroxides, (ii) coprecipita…
A theoretical and experimental study of mixtures of a calamitic nematic liquid crystal and gold nanoparticles capped with mixed monolayers (alkylic + mesogenic ligands) is presented. The effect of the ligand monolayer composition and nanoparticle concentration on the solubility in the isotropic phase and on the isotro…
Visando a redução da capacidade de absorção de água de fibras ligno-celulósicas, ciclos de molhagem e secagem são usualmente utilizados na indústria de papel e celulose. Esse procedimento enrijece a estrutura polimérica das fibro-células (processo conhecido como hornificação) resultando assim em maior estabilidade dim…
Possible effects of multi-wall carbon nanotubes (MWCNTs) on immune and inflammatory responses were examined in mice. Female ICR mice were given a single intraperitoneal administration (2 mg/kg body weight) of either MWCNTs, carbon black (CB), or crocidolite (blue asbestos) and controls received a vehicle of 2% sodium…
Thermal studies of a DODA+ salt of the nanoscopic hollow sphere [Mo132O372(H2O)72(CH3CO2)30]42− revealed ionic liquid crystalline properties, which were evidenced by Polarised Optical Microscopy, DSC and SA-XRD.
In this paper, we report a facile one-pot route to prepare core-shell Ag2S@MSN mesoporous silica nanospheres with near-infrared (NIR) photoluminescent properties. The Ag2S@MSN nanospheres have uniform core-shell structures with single monoclinic α-Ag2S nanocrystal core (∼17 nm), ordered mesoporous silica shell (the th…
We report an aqueous synthesis of gold nanoparticles (AuNPs) by chemical reduction of HAuCl4 with hydrogen peroxide (H2O2) in the presence of nonionic fluorosurfactant (FSN). Here, FSN acts as a co-reducing and stabilizing agent. The diameters of the FSN-stabilized spherical AuNPs were 18 ± 3.8, 23 ± 2.5, 29 ± 3.4, 36…
The purpose of this study was to evaluate the cytotoxicity of acrylic and methacrylic acid (AA and MA), propanoic acid and isobutylic acid (PRA and IBA) which were the corresponding saturated carboxylic acids, 2-hydroxylethyl methacrylate and acrylate (HEMA and HEA), and hydroquinone (HQ). The growth of the fibroblast…
A [Co(6)(μ(3)-OH)(4)(datrz)(2)](6+) ribbon-based blue framework with a metamagnetic transition from an antiferromagnetic ordering to a weak spontaneous magnetization state, {[Co(3)(CH(3)OH)(μ(3)-OH)(2)(datrz)(sip)]·2.25H(2)O}(n) (1, Hdatrz = 3,5-diamino-1,2,4-triazole, sip(3-) = 3,5-dicarboxybenzenesulfonate), was sol…
Hydrogenated amorphous carbon (a-C:H) and nitrogen-incorporated a-C:H (a-C:N:H) thin films were deposited using radio frequency–plasma-enhanced chemical vapor deposition technique and studied for their electrical, optical, and nano-mechanical properties. Introduction of nitrogen and increase of self bias enhanced the…
Arylethynyl-2H-cyclohepta[b]furan-2-ones reacted with 7,7,8,8-tetracyanoquinodimethane (TCNQ) in a formal [2 + 2] cycloaddition reaction, followed by ring opening of the initially formed cyclobutene derivatives, to afford the corresponding dicyanoquinodimethane (DCNQ) chromophores in excellent yields. The intramolecul…
In the last two decades, near-infrared (NIR) emitting Cu-doped quantum dots (QDs) have stimulated stupendous research interest for their excellent optical properties. Due to the synthetic method in the organic phase, almost none of the NIR emitting Cu-doped QDs were used as the fluorescent probes for biological imagin…
Acephate is the most widely used organophosphorous insecticide in Indian subcontinent. In order to prepare ecofriendly and hydrophilic formulation of acephate, nanotechnology-based research is necessary. Here, we report a novel method of preparation and subsequent characterisation of the acephate nano-encapsulation co…
The rational design of bulk nanoscale order in organic electro-optic materials, where the strong dipole–dipole interactions tend to dominate over the weaker forces exploited for self-assembly processes, remains an attractive yet elusive goal. Towards this end, a series of pseudo-discotic dipolar nonlinear optical chro…
Three light-sensitive amphiphiles, based on azobenzene, have been synthesized as supramolecular gelators. A hydrophobic chain with an azobenzene group incorporated at different positions was click coupled to a maltose polar head by a copper(I)-catalysed azide–alkyne [3 + 2] cycloaddition. The liquid crystalline and ge…