https://juser.fz-juelich.de/record/135728/files/TA3_pp_1_Ji.pdf

Effect of hydrogen addition on combustion and emissions performance of a spark ignition gasoline engine at lean conditions

https://www.hho-plus.com/hho-research/hhoresearch.pdf

Effect of hydroxy (HHO) gas addition on performance and exhaust emissions in compression ignition engines

Modern trends in the greener synthesis and fabrication of inorganic, organic and coordination compounds, materials, nanomaterials, hybrids and nanocomposites are discussed. Green chemistry deals with synthesis procedures according to its classic 12 principles, contributing to the sustainability of chemical processes, energy savings, lesser toxicity of reagents and final products, lesser damage to the environment and human health, decreasing the risk of global overheating, and more rational use of natural resources and agricultural wastes. Greener techniques have been applied to synthesize both well-known chemical compounds by more sustainable routes and completely new materials. A range of nanosized materials and composites can be produced by greener routes, including nanoparticles of metals, non-metals, their oxides and salts, aerogels or quantum dots. At the same time, such classic materials as cement, ceramics, adsorbents, polymers, bioplastics and biocomposites can be improved or obtained by cleaner processes. Several non-contaminating physical methods, such as microwave heating, ultrasound-assisted and hydrothermal processes or ball milling, frequently in combination with the use of natural precursors, are of major importance in the greener synthesis, as well as solventless and biosynthesis techniques. Non-hazardous solvents including ionic liquids, use of plant extracts, fungi, yeasts, bacteria and viruses are also discussed in relation with materials fabrication. Availability, necessity and profitability of scaling up green processes are discussed.

https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.191378

Greener synthesis of chemical compounds and materials

Currently, thousands of tons of metallic nanoparticles (MNPs) are produced and utilized in nano-enabled devises, personal care, medicinal, food and agricultural products. It is generally accepted that the reaction compounds and the techniques used in industrial production of MNPs are not environmentally friendly. The green synthesis has been proposed as an alternative to reduce the use of hazardous compounds and harsh reaction conditions in the production of MNPs. In this endeavor, investigators have used organic compounds, microbes, plants and plant-derived materials as reducing agents. Research papers are published every year, and each one of them stresses the benefits of the green approach and the advantages over the traditional syntheses. However, after almost two decades since the explosion of the reports about the new approach, the commercial production of green-synthesized nanoparticles does not seem to find a way to scale up commercial production. This review includes descriptions of the traditional and green synthesis and applications of MNPs and highlights the factors limiting the use of plant-based synthesis as a real alternative to the traditional synthesis of MNPs.

/pdf/plant-based-green-synthesis-of-metallic-nanoparticles-4yu12j5vgt.pdf

Plant-based green synthesis of metallic nanoparticles: scientific curiosity or a realistic alternative to chemical synthesis?

Comparative biochemistry and physiology. B, Comparative biochemistry

Hydrogen fueled spark ignition engine with electronically controlled manifold injection: An experimental study

Green synthesis of metal nanoparticles is an interesting and expanding research area due to the potential applications for the ecofriendly development of novel technologies. Generally, nanoparticles are prepared by a variety of chemical and physical methods which are yield environmentally benign wastages largely. Present study reported a simple, convenient and low cost method for the synthesis of manganese nanoparticles by reducing manganese acetate with the help of easily available natural products viz., lemon extract as reducing agent and turmeric curcumin as a stabilizing agent. The curcumin was isolated from turmeric by using solvent extraction method and used for manganese nanoparticle stabilization. The characterization of curcumin and manganese nanoparticles was done by using UV- Vis and FT-IR spectroscopic techniques. The morphology of manganese nanoparticles was confirmed by SEM and TEM techniques. The size of MnNPs was in the ranges about 50 nm. The antimicrobial activities of synthesized Mn nanoparticles were observed higher antimicrobial activity than the standard drug against S.aureus, C.lunata and T.simii and also exhibited similar inhibition activity to standard drug against E.coli, C.albicans, and A.niger.

/pdf/green-synthesis-and-characterization-of-manganese-50w8qwps0u.pdf

Green synthesis and characterization of Manganese nanoparticles using natural plant extracts and its evaluation of antimicrobial activity

A pharmaceutical dosage form comprising a first drug and a second drug, both of which are selected from decongestants, antitussives, expectorants, analgesics and antihistamines. The dosage form provides a plasma concentration within a therapeutic range of the second drug over a period which is coextensive with at least about 70% of a period over which the dosage form provides a plasma concentration within a therapeutic range of the first drug. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Dosage form containing multiple drugs

Cervical carcinoma is the second most common cancer worldwide. The extent of free radical induced oxidative stress can be exacerbated by the decreased efficiency of antioxidant defense mechanisms. Low levels of essential antioxidants in the circulation have been found to be associated with an increased risk of cancer. The aim of our study was to assess the extent of oxidative stress, the levels of antioxidants like superoxide dismutase (SOD), catalase (CAT), ceruloplasmin and to evaluate tumor markers such as aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP) and total sialic acid (TSA) levels in circulation of women with cervical carcinoma and to compare our findings with age matched controls. Low levels of SOD and CAT observed in the circulation of cervical cancer patients may be due to their increased utilization to scavenge lipid peroxides as well as sequestration by tumor cells. Higher levels of TSA, AST, ALT and ALP, in the circulation of cervical cancer patients may be used in the diagnosis and treatment monitoring of patients with cervical carcinoma.

Oxidative stress and tumor markers in cervical cancer patients.

A pharmaceutical dosage form which comprises phenylepherine or a pharmaceutically acceptable salt thereof and a second drug. The dosage form provides a plasma concentration within the therapeutic range of the second drug over a period which is coextensive with at least about 70% of the period over which the dosage form provides a plasma concentration within the therapeutic range of phenylepherine. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

V. Balasubramanian

Papers

Hydrogen fueled spark ignition engine with electronically controlled manifold injection: An experimental study

Green synthesis and characterization of Manganese nanoparticles using natural plant extracts and its evaluation of antimicrobial activity

Dosage form containing multiple drugs

Oxidative stress and tumor markers in cervical cancer patients.

Phenylepherine containing dosage form