Carbon Soot Polymer Nanocomposites (CSPNCs): Production, Surface Morphological, Glass Transition Temperature Phenomenon and Optical Properties

The present chapter covers the production and properties of carbon soot nanoparticles (CSNPCs) and their doped carbon soot polymer nanocomposites (CSPNCs). The first part of this chapter will provide a brief introduction of carbon soot, its morphology, production and synthesis methods. The second part will explain the investigation of carbon soot nanoparticles by flame deposition method and their properties. The third part will provide a short knowledge on polymer nanocomposites (PNCs) and their processing methods. The last part will illustrate the production of carbon soot polymer nanocomposites by solution casting method and their important properties. At the end, the chapter concludes with future scopes

ChemInform Abstract: Deep Eutectic Solvents (DESs) as Eco‐Friendly and Sustainable Solvent/Catalyst Systems in Organic Transformations

Review: 382 refs

Deep eutectic solvents (DESs) as eco-friendly and sustainable solvent/catalyst systems in organic transformations

The development of efficient and environmentally benign synthetic protocols has attracted increasing interest in modern organic syntheses in view of the growing concern over the environment. As part of this green concept, eutectic solvents (DESs) have emerged as an interesting type of ionic liquid and have shown their usefulness as environmentally benign sustainable alternative to the conventional organic solvents in synthetic chemistry to increase efficiency of organic transformations. The synthetic methodology with the use of DES as green solvent and inexpensive, biodegradable, recyclable catalyst and with its experimental simplicity and maximum synthetic efficiency will be attractive for academic and industrial research looking forward for simple catalytic organic transformations to synthesize drug like small molecules with structural diversity and molecular complexity. The present review focuses on the use of environmentally benign and inexpensive DES as solvent and catalyst in the field of organic chemistry. •Deep eutectic solvents (DES) have emerged as inexpensive environmentally benign sustainable alternative to the conventional organic solvents in organic syntheses.•The synthesis of deep eutectic mixtures is energy efficient and can be synthesized simply by mixing and heating the components without the need of ion-exchange chromatography and purification.•The DES are efficiently able to function as recyclable and reusable organocatalysts to facilitate the organic transformations.•Deep eutectic solvents with their tailor-made properties can be designed according to the requirement of the synthetic protocol.•Deep eutectic solvents with their dual role will be attractive not only for academic and medicinal research but also for industrial research looking forward for simple catalytic organic transformations

ChemInform Abstract: L-Proline Catalyzed Multicomponent Reactions

Review: 115 refs

An efficient one pot three-component nanocatalyzed synthesis of spiroheterocycles using TiO2 nanoparticles as a heterogeneous catalyst

An efficient and environmentally benign isocyanide based domino protocol has been presented for the synthesis of structurally diverse spiroheterocycles, spiroannulated with imidazothiazole and imidazothiadiazole, involving the three component reaction of 2-aminobenzothiazole/2-amino-1,3,4-thiadiazole, cyclohexyl/tert-butyl isocyanides and isatines/cyclic carbonyl compounds catalyzed by recyclable and reusable nanocrystalline TiO2

Button cell battery as foreign body ingestion in children: A retrospective analysis in a tertiary care center

Abstract—Button cell foreign bodies are increasingly presented as foreign bodies in esophagus. Many a time no positive id on button cell and can be mistaken as foreign body coin and delayed for management. Retrospectively analyze of 19 admitted cases with foreign body ingestion in children for foreign body Lithium ion battery button cell in esophagus done with the aim to evaluate epidemiology, clinical presentation and duration of presentation, radiological findings, endoscopic findings and complications in such cases. Clinical record of patients with foreign body Button cell batteries was reviewed and compiled in Microsoft Excel sheet and descriptive and percentage analysis was done. There were 11 (57.89%) male patients and 8 female patients. History of foreign body battery cell was given by the parents of 10 children. 3 patients presented with respiratory complains. After history and radiological examination in 17 out of 19 patients presence of lithium cell battery was suspected prior to endoscopic removal. In 4 patients severe mucosal injury noted. It was concluded from this study that foreign body button cell can cause serious injuries to upper aerodigestive tract. These should be promptly removed