In addition, the chronopotentiometric curve obtained for the gold electrode/PBS system showed the adsorption of chloride and phosphate ions and other species existing in PBS on the electrode ...

The demand for safer design and synthesis of gold nanoparticles (AuNPs) is on the increase with the ultimate goal of producing clean nanomaterials for biological applications. We hereby present a rapid, greener, and photochemical synthesis of gold nanoplates with sizes ranging from 10 to 200 nm usin …

The finished MKPC product (Magnesium potassium phosphate cement) was a highly crystallized columnar crystal with a smooth surface and no obvious cracks or defects, i.e., a denser microstructure that enabled it to have a higher long-term compressive strength at the macro level. ... In addition, the application of gold tailings in the ...

One of the most prominent photonic applications of NPs dispersed in glasses is connected with attempts to increase the rare-earth ions (REI) luminescence intensity by the local field enhancement or energy transfer between NPs and REI. ... (absorption and photoluminescence) of the same gold-doped phosphate glass matrix containing Er 3+ ions ...

Fabrication of gold–calcium phosphate composite nanoparticles through coprecipitation mediated by amino-terminated polyethylene glycol. Author links open overlay panel Maki Nakamura a, ... A key requirement for such applications is effectively delivering these functional nanocrystals to the targeted site/cell. One approach to increasing the ...

Piezocatalytic materials have considerable application potential in wireless therapy. Most of these applications require biocompatible nanomaterials for in vivo targeting and control of intracellular processes. However, the piezocatalytic performance of a material decreases at a nanometer size regime, and most of the biocompatible materials have poor …

Quartz-pebble-conglomerate gold deposits represent the largest repository of gold on Earth, largely due to the deposits of the Witwatersrand Basin, which account for nearly 40 percent of the total gold produced throughout Earth's history. This deposit type has had a controversial history in regards to genetic models.

In contrast to many other kinds of inorganic nanoparticles (e.g., gold, magnetite, silica), calcium phosphate nanocarriers have gained increasing interest in nanomedicine because of their high biocompatibility and good biodegradability, ... Application of calcium phosphate nanocarriers. In recent decades, nanosized and nanostructured calcium ...

The selective recovery of gold from wastewater is necessary because it is widely used in various fields. In this study, a new polymeric adsorbent (TP-AFC) was prepared by modifying polyaniline with trimethyl phosphate for the selective recovery of gold from wastewater. Bath experiments were carried out to explore the adsorption capacity and …

Vitamin B6 cofactor pyridoxal 5'-phosphate (PLP) and PLP crowned gold nanoparticles (PLP-AuNPs) was applied for the optical chemosensing of metal ions in aqueous medium. PLP showed a visually detectable colour change from colourless to yellow and 'turn-off' fluorescence in the presence of Fe3+ …

Gold nanoparticles (AuNP) have received a growing attention due to their fascinating physiochemical properties and promising range of biomedical applications including sensing, diagnosis and cancer photothermal ablation. …

4.2 Plasmonic Biosensors. One application of the plasmonic properties of nanoparticles is the use of an SPR to sense the presence of analytes. This relies on the fact …

Impedance spectroscopy and noise measurements have been used to study gold electrodes of three different surface areas in phosphate buffered saline (PBS) solution. The gold-PBS solution interface can be modeled by a charge transfer resistance in parallel with an interfacial constant phase element (CPE) which are in series with the solution resistance. The …

The particles ranging in size between 1 and 100 nm and possessing properties varying from the bulk material are defined as nanoparticles. In the last few decades, nanoparticles have been employed in various applied fields of science [1,2,3].Usually, the nanoparticles are produced in large quantities on a commercial scale that are uncapped and having a larger size.

Calcium phosphate nanoparticles represent promising materials for drug delivery because of its favorable properties, including biocompatibility, biodegradability and strong affinity for binding to nucleic acids (pDNA, siRNA, miRNA, etc.) and therapeutic drugs (cisplatin, carboplatin, paclitaxel, gef …

Gold nanoparticles (AuNP) have received a growing attention due to their fascinating physiochemical properties and promising range of biomedical applications including sensing, diagnosis and cancer photothermal ablation. AuNP enjoy brilliant optical properties and ability to convert light into local heat and function as a "nanoheaters" to fight cancer. However, AuNP …

The calcium phosphate nucleus of the delivery system was coated with melanoma TAA, αHSP70P protein and adjuvant CpG, and then, the calcium nucleus was coated with a …

A novel gold phosphate complex called Black-Gold II with improved myelin staining properties has been developed. It differs from its predecessor, Black-Gold, in that it is highly water soluble at room temperature. ... The study also incorporates the first application of such stains to examine peripheral nerves of control and acrylamide-exposed ...

Impedance spectroscopy and noise measurements have been used to study gold electrodes of three different surface areas in phosphate buffered saline (PBS) solution. The gold-PBS solution interface can be modeled by a charge transfer resistance in parallel with an interfacial constant phase element (CPE) which are in series with the solution resistance. The voltage noise …

1 Introduction. DNA-functionalized gold nanoparticles (AuNPs) are a classical bio/nano system, [1, 2] and the interest in this system by the research community has persisted to date. AuNPs have very strong extinction coefficients, three to five orders of magnitude higher compared to the brightest organic dyes, allowing AuNPs to be visualized by the naked eyes at …

In applications in medicine and more specifically drug delivery, the dispersion stability of nanoparticles plays a significant role on their final performances. In this study, with the use of two laser technologies, dynamic …

1 Introduction. DNA-functionalized gold nanoparticles (AuNPs) are a classical bio/nano system, [1, 2] and the interest in this system by the research community has …

19. Application of gold nanoparticles. Gold nanoparticles, for example, may be used in air cleaning, including the removal of odors and harmful carbon monoxide from rooms, …

The DNA origami, gold nanorods, and molecular targeted drugs are co-incorporated into pH responsive calcium phosphate [Ca 3 (PO 4) 2] nanoparticles. Subsequently, a thin layer of phospholipid is coated onto the Ca 3 (PO 4 ) 2 nanoparticle to offer better biocompatibility.

In addition, the application in wastewater indicated that the interfering ions had no effect on the adsorption of gold ions. TP-AFC has good selectivity. The interaction mechanism was mainly ion ...

1. Introduction. Nanosized particles of noble metals, especially gold nanoparticles (AuNPs), have received great interests due to their attractive electronic, optical, and thermal …

Using cytotoxic reducing and stabilizing agents in the synthesis of gold nanoparticles (AuNPs) limits their use in biomedical applications. One strategy to overcome this problem is using "green" synthesis methodologies …

Gold nanoparticles and their thiolated single stranded DNA and protein bioconjugates (AuNP-bios) have many applications in nanostructure assembly [1], biosensors [2], [3], [4], diagnostics and therapeutic technologies [5], [6], [7].The surface charge of AuNP-bios reflects the conformation of biomolecules on AuNPs [8], affects the interactions between …

Sodium-ion batteries are a promising area of research, and phosphate-based sodium superionic conductor (NASICON) materials have received significant attention from researchers due to their high structural stability and ionic conductivity. First principles calculations have been employed to facilitate the research p Journal of Materials Chemistry A Recent Review Articles

Impedance spectroscopy and noise measurements have been used to study gold electrodes of three different surface areas in phosphate buffered saline (PBS) solution. The gold-PBS solution interface can be modeled by a charge transfer resistance in parallel with an interfacial constant phase element (C …