نتایج جستجو برای: gold colloids nanoparticles gnps

تعداد نتایج: 184214  

2012
Guandong Zhang Jacek B Jasinski Justin Lee Howell Dhruvinkumar Patel Dennis P Stephens Andre M Gobin

In the quest for producing an effective clinically relevant therapeutic agent, scalability, repeatability, and stability are paramount. In this paper, gold nanoparticles (GNPs) with precisely controlled near infrared (NIR) absorption are synthesized by a single step reaction of HAuCl4 and Na2S2O3, without assistance of additional templates, capping reagents or seeds. The anisotropy in the shape...

2015
J. Anuradha Tasneem Abbasi S.A. Abbasi

A biomimetic method of gold nanoparticles synthesis utilizing the highly invasive aquatic weed pistia (Pistia stratiotes) is presented. In an attempt to utilize the entire plant, the efficacy of the extracts of all its parts - aerial and submerged - was explored with different proportions of gold (III) solution in generating gold nanoparticles (GNPs). The progress of the synthesis, which occurr...

2012
Rashmi Sanghi Preeti Verma

An efficient, simple and environment friendly biosynthesis of gold nanoparticles (GNPs), mediated by fungal proteins of Coriolus versicolor is reported. By altering the reaction conditions, the intracellular synthesis of GNPs on the fungal mycelium, could be well tailored to produce extracellular GNPs in the aqueous medium. The reaction rate and the morphology of the particles were found to dep...

Journal: :Nanotechnology 2008
Yu-Shiun Chen Yao-Ching Hung Kaochao Chen Guewha Steven Huang

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...

2011
Pooja M. Tiwari Komal Vig Vida A. Dennis Shree R. Singh

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...

Journal: :Microbial Cell Factories 2009
Yogesh Nangia Nishima Wangoo Nisha Goyal G Shekhawat C Raman Suri

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...

2014
Najam Abed Askouri

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 ...

Journal: :Physical chemistry chemical physics : PCCP 2015
Yuan Li Nitin Chopra

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...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2015
Jureerut Daduang Adisak Palasap Sakda Daduang Patcharee Boonsiri Prasit Suwannalert Temduang Limpaiboon

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...

Journal: :Analytical biochemistry 2008
Wenjuan Wang Chunlai Chen Minxie Qian Xin Sheng Zhao

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید