scholarly journals NEW PATHWAYS IN CHEMISTRY

2020 ◽  
Vol 6 (1) ◽  
pp. 01-03
Author(s):  
Dr D V Prabhu

Chemistry is a science whose progress is exponential as it touches every aspect of our existence and provides all the things required for life to survive on this planet. Chemistry is rightly called the Science of Life. Chemical processes provide food, clothing, shelter medicines, and energy to sustain life. Feeding the ever-increasing population is a big challenge calling for increased production of crops, minimizing losses during their harvesting and storage and use of new, improved varieties like Genetically modified (GM) food grains and pulses. The use of fertilizers has increased manifold over the years, leading to an increase in the production of food. Clothing is made from plant fibres like cotton and silk. New and better varieties of cotton have been developed. Nylon, produced by the polymer industry is also a critical clothing material in some parts of the world. New materials like composites, fly ash bricks, and polymeric wastes are being increasingly used for construction purposes, especially for housing and roads.  Research for the synthesis of new drugs to combat diseases is a continuous activity, and the pharmaceutical industry has a considerable investment, especially in our country. Indigenous medicine systems like Ayurveda, Homoeopathy and Unani are also contributing to health welfare, especially in India. Of late, nanomedicines are emerging as an essential area of medicine. Non-conventional energy sources like solar, nuclear, hydro, biodiesel and wind energy are being increasingly tapped as possible substitutes for the fast depleting coal and oil reserves. The International Solar Alliance, initiated by India, aims at forging a strong partnership between all nations to tap and use solar energy.

2021 ◽  
Vol 17 ◽  
Author(s):  
Grigoriy Sereda ◽  
Md Tusar Uddin ◽  
Jacob Wente

Background: The unique ability of carbon to form a wide variety of allotrope modifications has ushered a new era in the material science. Tuning the properties of these materials by functionalization is a must-have tool for their design customized for a specific practical use. The exponentially growing computational power available to researchers allows for the prediction and thorough understanding of the underlying physico-chemical processes responsible for the practical properties of pristine and modified carbons using the methods of quantum chemistry. Method: This review focuses on the computational assessment of the influence of functionalization on the properties of carbons and enabling desired practical properties of the new materials. The first section of each part of this review focuses on graphene - nearly planar units built from sp2-carbons. The second section discusses patterns of sp2-carbons rolled-up into curved 3D-structures in a variety of ways (fullerenes). The overview of other types of carbonaceous materials including those with a high abundance of sp3-carbons, including nanodiamonds, can be found in the third section of each manuscript’s part. Conclusion: The computational methods are especially critical for predicting electronic properties of materials such as the band gap, conductivity, optical and photoelectronic properties, solubility, adsorptivity, potential for catalysis, sensing, imaging and biomedical applications. We expect that introduction of defects to carbonaceous materials as a type of their functionalization will be a point of growth in this area of computational research.


Author(s):  
Bianca PizzornoBackx ◽  
Mayara Santana dos Santos ◽  
Otávio Augusto Leitão dos Santos ◽  
Sérgio Antunes Filho

: Nanotechnology is an area of science able to develop new materials. The relation between nanotechnology and microbiology is essential for the development of new drugs and vaccines. The main advantage of blend in both areas is to associate the latest technology to obtain new ways to solve problems related to microorganisms. This review seeks to investigate nanoparticle formation's antimicrobial properties, primarily when connected to the green synthesis of silver nanoparticles. The development of new sustainable methods for nanoparticle production has been instrumental in designing alternative, non-toxic, energy-friendly, and environmentally friendly routes. In this sense, it is necessary to study silver nanoparticles' green synthesis concerning their antimicrobial properties. Antimicrobial mechanisms of silver nanoparticles demonstrate efficiency to gram-positive bacteria, gram-negative bacteria, fungi, viruses, and parasites. However, attention is needed with the emergence of resistance to these antimicrobials. This article seeks to relate the parameters of green silver-based nanosystems with the efficiency of antimicrobial activity.


2016 ◽  
Vol 78 (special) ◽  
pp. 17 ◽  
Author(s):  
B.B. Pattanaik ◽  
R.K. Tripathi

Ferrocement is one of the most inexpensive and alternative construction techniques. The beauty of this materials attracts in analyzing and designing the ferrocement (F.C.) silo. This has encouraged the search for new materials like F.C. to provide an alternative to reinforced concrete. During last two decades, many attempts have been made to develop computational models for analysis of silos particularly in steel and reinforced cement concrete. However, very less work is reported on scientific development of analysis of F.C. silo. This indicates that there is a need to continue with more focus and detailed research on F.C. silo. There is a need to analyze F.C. silo for various parametric findings related to pressure and behavior of silo in tension, compression and flexure. Present paper reports new aspects of analysis of silo. The parametric study of stresses developed in wall of F.C. silo for different H/D ratio, thickness and storage capacity is done with help of commercial ANSYS version R14.5.


1985 ◽  
Vol 28 (4) ◽  
pp. 46-52
Author(s):  
Estrelita Shon ◽  
Otto Hamberg

Flexible packaging films are used to bag and/or wrap precision cleaned electronic or space hardware to protect them from environmental degradation during shipping and storage. Selection of packaging films depends on a knowledge of product requirements and packaging film characteristics. The literature presently available on protective packaging films has been updated to include new materials and to amplify space-related applications. Presently available packaging film materials are compared for their various characteristics: electrostatic discharge (ESD) control, flame retardancy, water vapor transmission rate, particulate shedding, molecular contamination, and transparency. The tradeoff between product requirements and the characteristics of the packaging films available are discussed. Selection considerations are given for the application of specific materials of space hardware-related applications. Applications for intimate, environmental, and electrostatic protective packaging are discussed.


2020 ◽  
Vol 24 ◽  
Author(s):  
Gongutri Borah ◽  
Preetishmita Borah ◽  
Arnav Bhuyan ◽  
Bimal Krishna Banik

: Reactions in water have demonstrated numerous surprising results. The effects of water in these reactions may include significant physical and chemical interactions with the substrates and catalysts through polar effects and hydrogen bonding ability. In some instances, water is also able to interact with the intermediates of reactions and possibly with the transition states of chemical processes. Organic synthesis in water encourages the researchers to follow the principles of green chemistry. Among heterocyclic compounds, quinoline scaffold has become an important motif for the development of new drugs. They are widely found in pharmaceuticals as well as in agrochemical industry. Over the last few decades, numerous reports have been documented to access quinoline derivatives with structural diversity, either by new annulation or by ring functionalization. This review summarizes an overview of the synthesis and functionalisation of quinoline scaffolds in aqueous medium. This method may encourage researchers to adopt green chemistry and to apply these environmentally safe methods in designing important heterocyclic cores.


2017 ◽  
Vol 110 ◽  
pp. 59-68 ◽  
Author(s):  
Stefan K. Henninger ◽  
Sebastian-Johannes Ernst ◽  
Larisa Gordeeva ◽  
Phillip Bendix ◽  
Dominik Fröhlich ◽  
...  

2019 ◽  
Vol 64 (2) ◽  
pp. 196-205 ◽  
Author(s):  
Adesina Jacobs Mobolade ◽  
Nameirakpam Bunindro ◽  
Dinabandhu Sahoo ◽  
Yallappa Rajashekar

2005 ◽  
Vol 09 (03) ◽  
pp. 72-86

Agilent Expands Foray into Array-Based Genomics Research. Trinity Biotech’s HIV Test-Maker Set to Enter China. Elder Pharmaceuticals Launches 25 New Drugs. Takara Bio Files Leukemia Patent, Announces Detection Kit. PLR — A Company Dedicated to Post-Genome Research and Drug Discovery. HuBit Genomix Launches Arthritis Database Project. CordLife Opens Second Tissue Processing and Storage Facility in Singapore. Takara Bio Licenses RetroNectin® for AIDS Research. Zydus Cadila Eyeing the European Markets. Kerry Announces Multimillion Dollar Expansion Into China.


Sign in / Sign up

Export Citation Format

Share Document