Assay for lipid peroxides in animal tissues by thiobarbituric acid reaction

The aim of this critical review is to provide a broad but digestible overview of mechanochemical synthesis, i.e. reactions conducted by grinding solid reactants together with no or minimal solvent. Although mechanochemistry has historically been a sideline approach to synthesis it may soon move into the mainstream because it is increasingly apparent that it can be practical, and even advantageous, and because of the opportunities it provides for developing more sustainable methods. Concentrating on recent advances, this article covers industrial aspects, inorganic materials, organic synthesis, cocrystallisation, pharmaceutical aspects, metal complexes (including metal–organic frameworks), supramolecular aspects and characterization methods. The historical development, mechanistic aspects, limitations and opportunities are also discussed (314 references).

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Mechanochemistry: opportunities for new and cleaner synthesis

Synthesis methods for nanosized hydroxyapatite with diverse structures.

Microwave-assisted preparation of inorganic nanostructures in liquid phase.

Zinc oxide nanoparticles (ZnO NPs) are used in an increasing number of industrial products such as rubber, paint, coating, and cosmetics In the past two decades, ZnO NPs have become one of the most popular metal oxide nanoparticles in biological applications due to their excellent biocompatibility, economic, and low toxicity ZnO NPs have emerged a promising potential in biomedicine, especially in the fields of anticancer and antibacterial fields, which are involved with their potent ability to trigger excess reactive oxygen species (ROS) production, release zinc ions, and induce cell apoptosis In addition, zinc is well known to keep the structural integrity of insulin So, ZnO NPs also have been effectively developed for antidiabetic treatment Moreover, ZnO NPs show excellent luminescent properties and have turned them into one of the main candidates for bioimaging Here, we summarize the synthesis and recent advances of ZnO NPs in the biomedical fields, which will be helpful for facilitating their future research progress and focusing on biomedical fields

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The Advancing of Zinc Oxide Nanoparticles for Biomedical Applications

http://web.mit.edu/~elsao/www/Articles/2007ParhiSynthesis%20and%20characterization%20of%20metal%20tungstates%20by%20novel%20solid-state%20metathetic%20approach.pdf

Synthesis and characterization of metal tungstates by novel solid-state metathetic approach

Evaluation of antibacterial and antioxidant potential of the zinc oxide nanoparticles synthesized by aqueous and polyol method

A convenient route for the synthesis of hydroxyapatite through a novel microwave-mediated metathesis reaction

Anchorage-dependent mammalian cells are typically grown in vitro on hydrophilic glass and plastic substrata in a medium supplemented with 5–20% v/v blood-serum proteins. Inoculated single cells gravitate from suspension to within close proximity of substrata surfaces whereupon initial contact and attachment occurs followed by progressive cell adhesion, spreading, and ultimately proliferation. A critical examination of the role of proteins and water in the initial attachment phase concludes that the cell attachment phase is not mediated by biological recognition of surface-adsorbed ligands by cell membrane receptors as frequently depicted in various textbook explanations of cell adhesion. This conclusion is based on extensive experimental evidence showing that blood proteins do not adsorb on hydrophilic surfaces that are most conducive to cell growth but do adsorb on hydrophobic surfaces that are not conducive to cell growth. As a consequence, the conventional idea that initial cell attachment is mediated ...

Role of Proteins and Water in the Initial Attachment of Mammalian Cells to Biomedical Surfaces: A Review

Optical fibre based localized surface plasmon resonance (LSPR) sensor using graphene oxide (GO) encapsulated Au nanoparticles has been reported for sucrose sensing. Au-nanoparticles (AuNPs) are encapsulated with GO in fixed ratio to prevent the AuNPs from aggregation as agglomeration of AuNPs broadens the absorbance spectra by more than 25%. The TEM results support the formation of 2 nm thickness of GO around Au nanoparticle of approximate size of 30 nm thereby making the sensor stable. The GO encapsulated AuNPs was immobilized on the core of processed and functionalized optical fibre for sucrose sensing. We found that the peak absorbance changes with sucrose refractive index and the sensitivity of 2.288 ΔA/RIU has been obtained i.e. the peak absorbance changes by 75.78% with 0.0395 change in refractive index of sucrose. Our experimental results are in good agreement with theory.

Purnendu Parhi

Papers

Synthesis and characterization of metal tungstates by novel solid-state metathetic approach

Evaluation of antibacterial and antioxidant potential of the zinc oxide nanoparticles synthesized by aqueous and polyol method

A convenient route for the synthesis of hydroxyapatite through a novel microwave-mediated metathesis reaction

Role of Proteins and Water in the Initial Attachment of Mammalian Cells to Biomedical Surfaces: A Review

Graphene oxide encapsulated gold nanoparticle based stable fibre optic sucrose sensor