نتایج جستجو برای: mwcnts cooh

تعداد نتایج: 7593  

Gallic acid (GA) is the main phenolic antioxidant which has been subjected of many studies because of its important biological properties including anticancer, anti-inflammatory and antimicrobial activities as well as free radicals scavenger and cardiovascular diseases protector. Hereupon, fabricating a selective and sensitive sensor for GA detection and measurement is an important issue. In th...

2012
Jie Meng Xuelian Cheng Jian Liu Weiqi Zhang Xiaojin Li Hua Kong Haiyan Xu

In this work the effects of four different multiwalled carbon nanotubes (MWCNTs), including long carboxylated (L-COOH), short carboxylated (S-COOH), long aminated (L-NH(2)) and short aminated (S-NH(2)) ones, on the integrity of red blood cells, coagulation kinetics and activation of platelets were investigated with human whole blood. We found that the four MWCNTs induced different degrees of re...

Journal: :eFood 2023

Catechin (Cat) is one of the primary functional components tea, and its accurate detection significant for understanding health benefits tea. In this study, cyclodextrin nanosponges (CDNS) were prepared employed to combine with graphene quantum dots (GQDs) carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) form a CDNS/GQDs/MWCNTs-COOH composite. Scanning electron microscope X-ray diffract...

Journal: :Environmental Toxicology and Pharmacology 2021

Potentially, the toxicity of multiwalled carbon nanotubes (MWCNTs) can be reduced in a safe-by-design strategy. We investigated if genotoxicity and pulmonary inflammation MWCNTs from same batch were lowered by a) reducing length b) introducing COOH-groups into structure. Mice administered: 1) long pristine MWCNT (CNT-long) (3.9 μm); 2) short CNT (CNT-short) (1 3) modified with high ratio (CNT-C...

Journal: :Environmental science & technology 2013
Xiaolei Qu Pedro J J Alvarez Qilin Li

The study investigated the photochemical transformation of carboxylated multiwalled carbon nanotubes (COOH-MWCNTs), an important environmental process affecting their physicochemical characteristics and hence fate and transport. UVA irradiation removed carboxyl groups from COOH-MWCNT surface while creating other oxygen-containing functional groups with an overall decrease in total surface oxyge...

Elham Arbabi, Fatemeh Atyabi, Fatemeh Rostami, Parichehr Hassanzadeh, Rassoul Dinarvand,

Introduction: Carbon nanotubes (CNTs) have shown enormous potential in neuroscience. Nerve growth factor (NGF)-CNTs complex promotes the neuronal growth, however, the underlying mechanism(s) have remained elusive. Based on the interplay between NGF and the endocannabinoid system, involvement of the neuroprotective endocannabinoid, 2-arachidonoyl glycerol (2-AG), was investigated in the mechanis...

2017
Xiuping Wang Zilin Zhou Fangfang Chen

The addition of surface functional groups to multi-walled carbon nanotubes (MWCNTs) expands their application in engineering, materials, and life science. In the study, we explored the antifungal activities of MWCNTs with different surface groups against an important plant pathogenic fungi Fusarium graminearum. All of the OH-, COOH-, and NH₂-modified MWCNTs showed enhanced inhibition in spore e...

Journal: :Case Studies in Thermal Engineering 2022

In this study, the thermal properties of operating fluid by replacing with better and lower water loss in a cross-flow cooling tower (CFWCT) investigated. For purpose, MWCNTs/H2O, MWCNTs-COOH/H2O, MWCNTs-OH/H2O nanofluids were used instead water, results compared. The visual method dynamic light scattering (DLS) to guarantee stability determine size distribution nanoparticles nanofluid. influen...

Journal: :Nanotechnology 2011
A R Inigo S J Henley S R P Silva

The hole transport properties of poly(2-methoxy, 5-(2'-ethyl-hexoxy)-p-phenylene vinylene) (MEH-PPV) blended with acid oxidized multiwall carbon nanotubes (COOH-MWCNTs) were investigated in a diode configuration using the time-of-flight (TOF) photocurrent method. While the room temperature hole mobility in pure MEH-PPV films was non-dispersive with positive field dependent mobility, MEH-PPV:COO...

ژورنال: سنجش و ایمنی پرتو 2020

Widespread use of ionizing radiation in medicine, industry, agriculture, education and research, the increasing production of nuclear waste and nuclear incidents, has exposed humans and organisms to this radiation. Despite the benefits of ionizing radiation, these beams can cause serious damage to living systems. Hence, the need for radiation protection actions requires accurate, fast, inexpens...

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