Cellular Detection of Glutathione Using Synthesized Stable Sea Urchin-Like Gold Nanoparticles

Controllable synthesis and SERS characteristics of hollow sea-urchin gold nanoparticles.

Hollow sea-urchin gold nanoparticles (HSU-GNPs) were successfully prepared through a novel one-step galvanic replacement strategy, and their corresponding optical properties was studied in detail. During the synthesis process, the sizes of the interior hollows of the HSU-GNPs could be changed by adjusting the amount of silver nitrate added into hydrogen tetrachloroaurate trihydrate solution. Th...

Hydrothermal synthesized urchin-like nickel-cobalt carbonate hollow spheres for sensitive amperometric detection of nitrite

In this article, we present a facile and low-cost method to prepare urchin-like nickel-cobalt carbonate hollow spheres that display excellent electrooxidation of nitrite. The as-fabricated samples are characterized by XRD, SEM, TGA, and BET. The results confirm that the successful formation of nickel carbonate and cobalt carbonate at ratio of 1/2, and their entirely uniform hollow microspherica...

Synthesis of extracellular stable gold nanoparticles

Colorimetric Detection Of Lead Ions Using Glutathione Stabilized Silver Nanoparticles

Heavy metal poisoning is one of the common problems that occurs due to changes in food chain, environmental conditions, etc., One of the most commonly occurring toxicities due to metal ions is lead poisoning. It causes many diseases like skin lesions, cancer, diabetes, heart and lung related problems etc., in human beings. It was widely reported that the elevated level of Pb (II) in drinking wa...

Assessing Stability of Gold Nanoparticles in Presence of Two Enzymes, RNaseA and RNaseH, Using Colorimetric Detection

Gold nanoparticle-based diagnostic methods have attracted much attention due to their simplicity, high sensitivity and low cost. These methods are mostly used for early and efficient detection of various pathogenic factors and assessment of gene expression and nanoparticles stability. In this study, melon plants were cultured in vivo and then, RNA was extracted from leaf explants. A 40 bp probe...