نتایج جستجو برای: nanoparticles nps

تعداد نتایج: 111222  

Journal: :physical chemistry research 2015
elahe azhir reihane etefagh naser shahtahmasebi* mansour mashreghi parvane pordeli

manganese oxide nanoparticles (mn3o4-nps) were prepared using precipitation method. the prepared nanoparticles were characterized by a number of techniques, including x-ray diffraction (xrd) analysis, scanning electron microscopy (sem), transmission electron microscopy (tem) and fourier transforms infra red (ft-ir) spectroscopy. the xrd pattern showed that the structure of mn3o4-nps was tetrago...

2015
Wen-Jeng Ho Shih-Ya Su Yi-Yu Lee Hong-Jhang Syu Ching-Fuh Lin

Performances of textured crystalline-silicon (c-Si) solar cells enhanced by silver nanoparticles (Ag-NPs) and indium nanoparticles (In-NPs) plasmonic effects are experimentally demonstrated and compared. Plasmonic nanoparticles integrated into textured c-Si solar cells can further increase the absorption and enhance the short-circuit current density (Jsc) of the solar cell. To examine the profi...

2014
Sidra Sabir Muhammad Arshad Sunbal Khalil Chaudhari

Nanotechnology is the most innovative field of 21st century. Extensive research is going on for commercializing nanoproducts throughout the world. Due to their unique properties, nanoparticles have gained considerable importance compared to bulk counterparts. Among other metal nanoparticles, zinc oxide nanoparticles are very much important due to their utilization in gas sensors, biosensors, co...

Journal: :nanomedicine journal 0
roya cheraghi department of nanobiotechnology, faculty of biological sciences, tarbiat modares university, tehran, iranسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university) mohsen alipour department of nanobiotechnology, faculty of biological sciences, tarbiat modares university, tehran, iranسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university) mahboobeh nazari monoclonal antibody research center, avicenna research institute, acecr, tehran, iran saman hosseinkhani department of biochemistry, faculty of biological sciences, tarbiat modares university, tehran, iranسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university)

objective(s): pei based nanoparticle (np) due to dual capabilities of proton sponge and dna binding is known as powerful tool for nucleic acid delivery to cells. however, serious cytotoxicity and complicated conditions, which govern nps properties and its interactions with cells practically, hindered achievement to high transfection efficiency. here, we have tried to optimize the properties of ...

Journal: :Journal of the American Chemical Society 2004
Huifang Lang Stephen Maldonado Keith J Stevenson Bert D Chandler

Bimetallic dendrimer-stabilized nanoparticles (DSNs) were used to prepare supported Pt-Au catalysts within the bulk miscibility gap for this binary system. Hydroxy-terminated generation 5 PAMAM dendrimers were used to prepare Cu(0) nanoparticles (NPs). The Cu(0) NPs were subsequently used to reduce K(2)PtCl(4) and HAuCl(4), preparing stabilized bimetallic Pt-Au NPs with a 1:1 stoichiometry. The...

2011
Patricia Ruiz Jorge Macanás María Muñoz Dmitri N Muraviev

The synthesis of polymer-stabilized nanoparticles (PSNPs) can be successfully carried out using intermatrix synthesis (IMS) technique, which consists in sequential loading of the functional groups of a polymer with the desired metal ions followed by nanoparticles (NPs) formation stage. After each metal-loading-NPs-formation cycle, the functional groups of the polymer appear to be regenerated. T...

2016
Thomas Hopkins Rahil Ukani Raoul Kopelman

Nanoparticles (NPs) containing the photo-therapeutic dye Chlorin e6 (Ce6) have been explored in multiple studies for photo-dynamic therapy (PDT). However, little work has been carried out regarding their PDT efficacy, relative to other dye containing NPs. Here polyacrylamide nanoparticles (PAAm NPs) containing Ce6 were prepared and their PDT efficacy compared to previously reported methylene bl...

2017
Yu Zhang Qi Zhang Jing Sun Huijie Liu Qingfeng Li

Purpose Lung cancer (LC) is the leading cause of cancer death worldwide. Evidences suggest that both LC cancer stem cells (CSCs) and cancer cells are supposed to be eliminated to achieve superior treatment effect against LC. Salinomycin could eradiate CSCs in various types of cancers, and gefitinib is a first-line therapy in LC. The purpose of the present study was to develop salinomycin-loaded...

2015
Hyung-Jin Choi Soon-gil Yoon

The prevention of microbial surface contamination has become most crucial in today’s health care system, and in food and pharmaceutical production. Human beings are often infected by microorganisms such as bacteria, viruses, and molds that often infect living environments. Silver nanoparticles or silver ions have been known to have strong inhibitory and bactericidal effects. Metallic nanopartic...

2017
DanDan Zhang Yan Yan Kong Jia Hui Sun Shao Jie Huo Min Zhou Yi Ling Gui Xu Mu Huan Chen Shu Qin Yu Qian Xu

Combination chemotherapy in clinical practice has been generally accepted as a feasible strategy for overcoming multidrug resistance (MDR). Here, we designed and successfully prepared a co-delivery system named S-D1@L-D2 NPs, where denoted some smaller nanoparticles (NPs) carrying a drug doxorubicin (DOX) were loaded into a larger NP containing another drug (vincristine [VCR]) via water-in-oil-...

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