Synthesis of a New Monomer: 4,7-bis(5-phenylthiophen-2-yl)benzo[c][1,2,5]selenadiazole

2014 ◽  
Vol 707 ◽  
pp. 28-31
Author(s):  
Tao Hu ◽  
Li Ping Wang ◽  
Xiao Long Lei ◽  
Xiao Xia Sun
Keyword(s):  
Optical Properties ◽  
Blue Light ◽  
Fluorescence Spectra ◽  
Large Scale ◽  
Scale Production ◽  
Product Yields ◽  
Light Region ◽  
Large Scale Production ◽  
Donor Type ◽  
Donor Acceptor

A donor/acceptor/donor-type benzoselenadiazole-incorporated monomer was synthesized. The procedure described herein offer several advantages, including high product yields, easy purification and large scale production. Optical properties of the resulting compounds were examined by means of UV-vis and fluorescence spectroscopies. The fluorescence spectra exhibit that the emission maxima of material at 419 nm belongs to blue light region.

Preparation and Optical Properties of Fullerene/Ferrocene Hybrid Hexagonal Nanosheets and Large-Scale Production of Fullerene Hexagonal Nanosheets

2009 ◽  
Vol 131 (29) ◽  
pp. 9940-9944 ◽  
Author(s):  
Takatsugu Wakahara ◽  
Marappan Sathish ◽  
Kun’ichi Miyazawa ◽  
Chunping Hu ◽  
Yoshitaka Tateyama ◽  
...  
Keyword(s):  
Optical Properties ◽  
Large Scale ◽  
Scale Production ◽  
Large Scale Production

scholarly journals Mn4+doped fluorotitanate phosphors: synthesis, optical properties and application in LED devices

RSC Advances ◽  
2017 ◽  
Vol 7 (51) ◽  
pp. 32094-32099 ◽  
Author(s):  
Qiang Zhou ◽  
Huiying Tan ◽  
Qiuhan Zhang ◽  
Nan Wang ◽  
Qianwen Wei ◽  
...  
Keyword(s):  
Optical Properties ◽  
Large Scale ◽  
Reaction Medium ◽  
Scale Production ◽  
Preparation Process ◽  
Red Phosphors ◽  
Large Scale Production ◽  
The Future

Green and safe HAc acid was used as the reaction medium in the preparation process of Mn4+doped A2TiF6(X = Na, K and Cs) red phosphors, which is beneficial for the potential large scale production in the future.

Large scale production of three dimensional carbon nanotube pillared graphene network for bi-functional optical properties

Carbon ◽  
2014 ◽  
Vol 78 ◽  
pp. 147-155 ◽  
Author(s):  
Reema Kamaliya ◽  
Bhanu Pratap Singh ◽  
Bipin Kumar Gupta ◽  
Vidya Nand Singh ◽  
Tejendra Kumar Gupta ◽  
...  
Keyword(s):  
Optical Properties ◽  
Carbon Nanotube ◽  
Large Scale ◽  
Three Dimensional ◽  
Scale Production ◽  
Large Scale Production

Synthesis of a Novel D-A Type Molecule Based on Carbazole Unit for Organic Light-Emitting Material Applications

2014 ◽  
Vol 989-994 ◽  
pp. 292-296
Author(s):  
Ze Biao Tang ◽  
Xiao Xia Sun ◽  
He Wei Yan ◽  
Le Ping Miao
Keyword(s):  
Optical Properties ◽  
Blue Light ◽  
Absorption Maximum ◽  
Fluorescence Spectra ◽  
Organic Light Emitting Diodes ◽  
Absorption And Fluorescence Spectra ◽  
Light Emitting ◽  
Organic Light ◽  
Light Region ◽  
Type Molecule

A novel D-A type molecule based on carbazole central core and aldehyde terminal groups has been designed and synthesized. Optical properties of the resulting compounds were examined by means of UV-vis and fluorescence spectroscopies. It shows that, the absorption and fluorescence spectra of M2 are large red-shifted relative to M1 in both states, whereas the absorption maximum and emission maxima of M1 and M2 are small blue-shifted, from solution to the solid state. The fluorescence spectra exhibit that the emission maxima of the compounds which range from 419 nm to 472 nm belong to blue light region. As expected, the target compounds should be a promising pure blue light-emitting material for applications in organic light-emitting diodes (OLEDs).

The Synthesis of Novel Chiral Organic Light-Emitting Material: 2R,3R-Di(tert-Butanesulfiny)Thiophene

2011 ◽  
Vol 337 ◽  
pp. 151-154 ◽  
Author(s):  
Xiao Xiao Zhuang ◽  
Xiao Xia Sun ◽  
Li Li ◽  
Ying Chun Li
Keyword(s):  
Organic Solvents ◽  
Large Scale ◽  
Scale Production ◽  
Light Emitting ◽  
Product Yields ◽  
Good Solubility ◽  
Organic Light ◽  
Large Scale Production ◽  
Synthetic Procedure

A mide, simple and efficient synthetic procedure for the preparation of 2,3-di(tert-butanesulfiny)Thiophene and key intermediates, chiral tert-Butanethiosulfinate have been developed. The procedure described herein offers several advantages, including high product yields, easy purification, and large scale production. 2,3-di(tert-butanesulfiny)Thiophene has good solubility in organic solvents.

I. S. A. Baud. Forms of Production and Women's Labour: Gender Aspects of Industrialisation in India and Mexico. New Delhi: Sage Publications. 1992. 321 pp.Hardbound. Price: Indian Rs 295.00.

1993 ◽  
Vol 32 (1) ◽  
pp. 129-131
Author(s):  
Naureen Talha
Keyword(s):  
Large Scale ◽  
Indian Society ◽  
New Delhi ◽  
Scale Production ◽  
Female Labour ◽  
Self Employment ◽  
Commodity Production ◽  
Large Scale Production ◽  
Mexican Society ◽  
Small Production

The literature on female labour in Third World countries has become quite extensive. India, being comparatively more advanced industrially, and in view of its size and population, presents a pictures of multiplicity of problems which face the female labour market. However, the author has also included Mexico in this analytical study. It is interesting to see the characteristics of developing industrialisation in two different societies: the Indian society, which is conservative, and the Mexican society, which is progressive. In the first chapter of the book, the author explains that he is not concerned with the process of industrialisation and female labour employed at different levels of work, but that he is interested in forms of production and women's employment in large-scale production, petty commodity production, marginal small production, and self-employment in the informal sector. It is only by analysis of these forms that the picture of females having a lower status is understood in its social and political setting.

An Efficient and Improved Process for the Synthesis of Itopride Hydrochloride and Trimethobenzamide Hydrochloride

2018 ◽  
Vol 15 (4) ◽  
pp. 572-575 ◽  
Author(s):  
Ponnusamy Kannan ◽  
Samuel I.D. Presley ◽  
Pallikondaperumal Shanmugasundaram ◽  
Nagapillai Prakash ◽  
Deivanayagam Easwaramoorthy
Keyword(s):  
Large Scale ◽  
Hydroxylamine Hydrochloride ◽  
Scale Production ◽  
One Pot ◽  
Hydrochloride Salt ◽  
Environmental Friendly ◽  
Large Scale Production ◽  
Non Ulcer Dyspepsia ◽  
Itopride Hydrochloride ◽  
Yield And Purity

Aim and Objective: Itopride is a prokinetic agent used for treating conditions like non-ulcer dyspepsia. Itopride is administered as its hydrochloride salt. Trimethobenzamide is used for treating nausea and vomiting and administered as its hydrochloride salt. The aim is to develop a novel and environmental friendly method for large-scale production of itopride and trimethobenzamide. Materials and Methods: Itopride and trimethobenzamide can be prepared from a common intermediate 4- (dimethylaminoethoxy) benzyl amine. The intermediate is prepared from one pot synthesis using Phyrdroxybenzaldehye and zinc dust and further reaction of the intermediate with substituted methoxy benzoic acid along with boric acid and PEG gives itopride and trimethobenzamide. Results: The intermediate 4-(dimethylaminoethoxy) benzylamine is prepared by treating p-hydroxybenzaldehyde and 2-dimethylaminoethyl chloride. The aldehyde formed is treated with hydroxylamine hydrochloride. The intermediate is confirmed by NMR and the purity is analysed by HPLC. Conclusion: Both itopride and trimethobenzamide were successfully synthesized by this method. The developed method is environmental friendly, economical for large-scale production with good yield and purity.

scholarly journals Cyanobacteria—From the Oceans to the Potential Biotechnological and Biomedical Applications

Marine Drugs ◽  
2021 ◽  
Vol 19 (5) ◽  
pp. 241
Author(s):  
Shaden A. M. Khalifa ◽  
Eslam S. Shedid ◽  
Essa M. Saied ◽  
Amir Reza Jassbi ◽  
Fatemeh H. Jamebozorgi ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Biomedical Applications ◽  
Large Scale ◽  
Biological Activities ◽  
Scale Production ◽  
Pharmacological Activities ◽  
Large Scale Production ◽  
Marine Products ◽  
Hiv 1 ◽  
Successful Phase

Cyanobacteria are photosynthetic prokaryotic organisms which represent a significant source of novel, bioactive, secondary metabolites, and they are also considered an abundant source of bioactive compounds/drugs, such as dolastatin, cryptophycin 1, curacin toyocamycin, phytoalexin, cyanovirin-N and phycocyanin. Some of these compounds have displayed promising results in successful Phase I, II, III and IV clinical trials. Additionally, the cyanobacterial compounds applied to medical research have demonstrated an exciting future with great potential to be developed into new medicines. Most of these compounds have exhibited strong pharmacological activities, including neurotoxicity, cytotoxicity and antiviral activity against HCMV, HSV-1, HHV-6 and HIV-1, so these metabolites could be promising candidates for COVID-19 treatment. Therefore, the effective large-scale production of natural marine products through synthesis is important for resolving the existing issues associated with chemical isolation, including small yields, and may be necessary to better investigate their biological activities. Herein, we highlight the total synthesized and stereochemical determinations of the cyanobacterial bioactive compounds. Furthermore, this review primarily focuses on the biotechnological applications of cyanobacteria, including applications as cosmetics, food supplements, and the nanobiotechnological applications of cyanobacterial bioactive compounds in potential medicinal applications for various human diseases are discussed.

scholarly journals A Review on Additive Manufacturing Possibilities for Electrical Machines

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1940
Author(s):  
Muhammad Usman Naseer ◽  
Ants Kallaste ◽  
Bilal Asad ◽  
Toomas Vaimann ◽  
Anton Rassõlkin
Keyword(s):  
Additive Manufacturing ◽  
Large Scale ◽  
Three Dimensional ◽  
Electrical Machines ◽  
Electromagnetic Properties ◽  
Scale Production ◽  
Performance Parameters ◽  
Large Scale Production ◽  
One Step ◽  
Manufacturing Techniques

This paper presents current research trends and prospects of utilizing additive manufacturing (AM) techniques to manufacture electrical machines. Modern-day machine applications require extraordinary performance parameters such as high power-density, integrated functionalities, improved thermal, mechanical & electromagnetic properties. AM offers a higher degree of design flexibility to achieve these performance parameters, which is impossible to realize through conventional manufacturing techniques. AM has a lot to offer in every aspect of machine fabrication, such that from size/weight reduction to the realization of complex geometric designs. However, some practical limitations of existing AM techniques restrict their utilization in large scale production industry. The introduction of three-dimensional asymmetry in machine design is an aspect that can be exploited most with the prevalent level of research in AM. In order to take one step further towards the enablement of large-scale production of AM-built electrical machines, this paper also discusses some machine types which can best utilize existing developments in the field of AM.

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