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61.
Bhagat Dharini Waldiya Manmohansingh Mukhopadhyay Indrajit 《Journal of Solid State Electrochemistry》2019,23(1):159-167
Journal of Solid State Electrochemistry - Metallic lead (Pb) has been electrodeposited on FTO substrate at room temperature from aqueous nitrate solution under constant applied potential in the... 相似文献
62.
A. Sarkar Shweta Hegde T. Mukherjee S. Kapoor 《Research on Chemical Intermediates》2010,36(3):309-318
The effect of silver ions and silver nanoparticles on the rate of polymerization of acrylamide and N-isopropylacylamide was investigated. Composites of silver particles of diameter around 30 nm and polyacrylamide were prepared
by the photochemical method in the absence of any photosensitizer. The particles formed were characterized by UV–visible spectrophotometry,
XRD, and TEM. It was shown that the presence of metal ions such as Ag+, Co2+, and Ni2+ in the acrylamide monomer is essential for photoinduced polymerization. 相似文献
63.
We have studied the effects of thermal cycling and annealing on the Hall resistivity ?H and electrical resistivity ? of an amorphous magnetic material, Metglas 2826A. Thermal cycling up to 600 K has no significant effect on ? but changes ?H, especially at T > 300 K. Annealing at higher temperatures Ta affects ?H more strongly that it influences ?. For Ta = 650 K the Curie temperature jumps by ~300 K and this, combined with X-ray data, is regarded as being symptomatic of the onset of crystallization. It is demonstrated that, for a fixed T, the variation of the extraordinary Hall coefficient R1 is simply correlated with that of ? for both the amorphous material and the annealed (crystallized) specimens. Furthermore, for a given Ta, the variations of R1 and ? as functions of temperature exhibit the same formal relationship. The temperature dependence of ? in the annealed specimens is rendered plausible in terms of recent theories of disordered materials. Room-temperature studies of electron spin resonance and the field dependence of the magnetization are also reported. 相似文献
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Anand Kumar Awasthi Somnath D. Bhagat Reshma Ramakrishnan Dr. Aasheesh Srivastava 《Chemistry (Weinheim an der Bergstrasse, Germany)》2019,25(56):12905-12910
Polydopamine (PDA) is a synthetic polymeric material with immense potential in biomedical and surface functionalization applications. Herein, we have screened self-assemblies formed by Phenylalanine-based amphiphiles (Phe-AMPs) as soft templates for preparing chiral PDA nanostructures. Our study revealed that the amphiphile 2 endowed with a primary amine residue afforded chirally-twisted ultrathin nanoribbons of PDA under optimized conditions. The chirality at the Phe residue of 2 modulated the twist-chirality of the PDA nanoribbons; the l -2 resulted in nanoribbons with right-handed twist, whereas the d -2 induced a left-handed twist to the ribbons. The racemic mixture of these two amphiphiles produced flat, achiral tapes. The PDA ribbon thickness was ≈5.86±0.40 nm, whereas its width and length were ≈133.5±3.2 nm and >5000 nm, respectively. Upon dialysis, hollow PDA nanotubes were obtained due to curling of the PDA nanoribbons. These PDA-nanoarchitectures were employed to spontaneously form and assemble Ag-nanoparticles along the edges of the PDA nanoribbons. In this work we are reporting chirality controlled synthesis of PDA nanostructures for the first time. 相似文献
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Jamble Shweta N. Ghoderao Karuna P. Kale Rohidas B. 《Research on Chemical Intermediates》2019,45(3):1381-1399
Research on Chemical Intermediates - Photocatalytic degradation of toxic dyes is an important topic across the globe. This paper reports the photocatalytic degradation of methylene blue (MB) dye... 相似文献
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The recognition of fingermarks plays a vital role during a criminal investigation. In the current scenario, fluorescent nano-powders emerged as a potential candidate for latent fingermark detection. We pioneer the use of microwave technology for the synthesis of carbon dots (CDs) with the cationic surfactant (cetylpyridinium chloride). The surfactant-derived CDs exhibit yellow fluorescence and emission at 545 nm with high quantum yield of (QY~34%). The prepared CDs also demonstrated amphiphilic properties. These luminous CDs were combined with ludox HS-30 to develop fluorescent hybrid nano-powders for the detection of sweat latent fingermarks on a non-porous surface. The ludox@CDs accumulate particle size 11.36 ± 1.235 nm and surface area 111 cm3/g?1. The fluorescent hybrid nano-powders emerged to be successful in creating high contrast and accurate latent fingermark images. Furthermore, cytotoxicity studies on breast cell lines (fR-2 and MCF-7) were conducted by using ludox@CDs. The results revealed that ludox@CDs were less toxic and biocompatible in comparison to the commercialized dusting reagents. Fortunately, ludox@CDs demonstrated anticancer efficacy against MCF-7 breast cancer cell lines. Thus, our findings herald a new age for fluorescent hybrid nano-powders in criminal investigation and biomedical applications. 相似文献
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