Since the existence of nanoparticles in our environment has already attracted considerable attention due to their possible toxic impact on biological systems, the field detection of nanoparticles is becoming a technology that will be much in need. We have constructed a piezoelectric sensor with an antibody-coated electrode. The antiserum can bind gold nanoparticles with a high degree of selecti...

Metal nanoparticles are being extensively used in various biomedical applications due to their small size to volume ratio and extensive thermal stability. Gold nanoparticles (GNPs) are an obvious choice due to their amenability of synthesis and functionalization, less toxicity and ease of detection. The present review focuses on various methods of functionalization of GNPs and their application...

BACKGROUND The synthesis of gold nanoparticles (GNPs) has received considerable attention with their potential applications in various life sciences related applications. Recently, there has been tremendous excitement in the study of nanoparticles synthesis by using some natural biological system, which has led to the development of various biomimetic approaches for the growth of advanced nanom...

25 Improvement of lung cancer radiotherapy using gold nanoparticles and gamma ray photons with high energy. Najam Abed Askouri AlFarabi Institute for High study ,Holy Najaf, Iraq E-mail:[email protected] Abstract : Since the lung tissue has small cross section so that we can introduce an agent to enhance the local cross section. Among nanomaterials gold nanoparticles (GNPs) has significant ...

Patterned growth of multilayer graphene shell encapsulated gold nanoparticles (GNPs) and their covalent linking with inorganic quantum dots are demonstrated. GNPs were grown using a xylene chemical vapor deposition process, where the surface oxidized gold nanoparticles catalyze the multilayer graphene shell growth in a single step process. The graphene shell encapsulating gold nanoparticles cou...

Cervical cancer (CxCa) is the most common cancer in women and a prominent cause of cancer mortality worldwide. The primary cause of CxCa is human papillomavirus (HPV). Radiation therapy and chemotherapy have been used as standard treatments, but they have undesirable side effects for patients. It was reported that gallic acid has antioxidant, antimicrobial, and anticancer activities. Gold nanop...

Combining gold nanoparticles (GNPs) as fluorescence quencher and aptamer as probe, we have developed protein biosensors by using DNA-modified GNPs. We examined how the experimental design, such as the type of interaction between DNA strands and GNPs, temperature, and microenvironment of aptamer, influences the recognition ability of the biosensor. Under our experimental conditions, the recognit...

synthesis and characterization of two functionalized gold nanoparticles by using of two poly functional amino acids (l-arginine and l-aspartic acid) are reported. the gold nanoparticles were reduced by sodium citrate and functionalized with l-arginine at the ph of 7 and 11 and l-aspartic acid at the ph of 7. transmission electron microscopy, uv-vis spectroscopy, dynamic light scattering, zeta p...

UNLABELLED This study examined the gene transfer efficiency and toxicity of 2-kDa polyethylenimine conjugated to gold nanoparticles (PEI2-GNPs) in the human cornea in vitro and rabbit cornea in vivo. PEI2-GNPs with nitrogen-to-phosphorus ratios of up to 180 exhibited significant transgene delivery in the human cornea without altering the viability or phenotype of these cells. Similarly, PEI2-GN...

The possibility of releasing gold nanoparticles (GNP) into the environment has been 9 rapidly increasing with the wide spread and flourishing application of gold nanoparticles (GNPs) 10 in a wide range of areas. Consequently, environmental effects of GNP, especially toxicities to 11 living organisms have drawn great attention. However, their toxicological characteristics still 12 remain unclear...