Antimicrobial activity of composite nanoparticles consisting of titania photocatalytic shell and nickel ferrite magnetic core

Rawat, J. P.; Rana, Subhasis; Srivastava, R. S.; Misra, R.D.K.

doi:10.1016/j.msec.2006.05.021

Cited by 212 publications

(42 citation statements)

References 26 publications

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“…In this context, TiO 2 NPs have considerable potential in biomedicines, and a variety of works have been conducted to develop new antibacterial and drug delivery systems based on this nanoparticle [5][6][7][8]. Additionally, TiO 2 has been classified as a biologically inert substance in animals and humans [9,10], and it has good biocompatibility and no toxicity in vitro or in vivo [11].…”

Section: Introductionmentioning

confidence: 99%

FTIR and Raman Characterization of TiO2 Nanoparticles Coated with Polyethylene Glycol as Carrier for 2-Methoxyestradiol

et al. 2017

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Abstract:The aim of this study was to prepare a novel targeting drug delivery system for 2-Methoxyestradiol (2ME) in order to improve the clinical application of this antitumor drug. It is based in nanoparticles (NPs) of titanium dioxide (TiO 2 ) coated with polyethylene glycol (PEG) and loaded with 2ME. A complete IR and Raman characterization have been made to confirm the formation of TiO 2 -PEG-2ME composite. Vibrational modes have been assigned for TiO 2 , PEG, and 2ME and functionalized TiO 2 -PEG and TiO 2 -PEG-2ME. The observed variation in peak position of FTIR and Raman of each for these composites has been elucidated in terms of intermolecular interactions between PEG-2ME and TiO 2 , obtaining step-by-step the modification processes that were attributed to the conjugation of PEG and 2ME to TiO 2 NPs. Modifying TiO 2 NPs with PEG loaded with the 2ME drug revealed that the titanium dioxide nanocarrier possesses an effective adsorption capability, and we discuss their potential application as a system of drug delivery.

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Section: Introductionmentioning

confidence: 99%

FTIR and Raman Characterization of TiO2 Nanoparticles Coated with Polyethylene Glycol as Carrier for 2-Methoxyestradiol

et al. 2017

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“…The data was collected from 0. [1][2][3][4][5] o (2θ) with resolution step size of 0.02 o (small-angle XRD diffraction patterns, SAXRD) and from 13-107 o (2θ) with resolution step size of 0.02 o (conventional wide-angle XRD patterns). X-ray fl uorescence (XRF) elemental analysis was performed using the Axios mAX (PANalytical) spectrometer.…”

Section: Sample Characterizationmentioning

confidence: 99%

“…During irradiation of semiconductor photocatalyst with UV light, a UV photon is absorbed by photocatalyst and electron (e -) hole (h + ) pairs are generated. In the presence of water and oxygen the redox reaction produces hydroxyl radicals that can oxidize pollutants or can be used as an anti-microbial agent 5 . The overall mechanism for the process can be represented using following equations: Photocatalytic nanoparticle + hν → e -+ h • + organic waste → CO 2 + H 2 O + others (4) In heterogeneous photocatalysis two reactions occur consecutively; the fi rst reaction is the reduction of oxygen and the second is the oxidation of organic wastes by the hydroxyl radical.…”

mentioning

confidence: 99%

Phenol and methylene blue photodegradation over Ti/SBA-15 materials under uv light

Olejnik

Pasieczna-Patkowska

Lesiuk

et al. 2016

Polish Journal of Chemical Technology

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Ordered SBA-15 mesoporous silica supports have been synthesized and used for incorporation of titanium with different Ti/Si weight ratio via incipient wetness impregnation. Titanium tetraisopropoxide (TTIP) was used as a source of Ti. Obtained catalysts were characterized to investigate the chemical framework and morphology by nitrogen sorption measurements, powder X-ray diffraction (XRD), X-ray fl uorescence elemental analysis (XRF), transmission electron microscopy (TEM), UV-Vis diffuse refl ectance spectroscopy (UV-Vis DRS) and Fourier transform infrared photoacoustic spectroscopy (FT-IR/PAS). The photocatalytic degradation of phenol and methylene blue water solutions were selected as a probe reactions to the photoactivity test of prepared samples and to verify the potential application of these materials for water purifi cation. Experimental results indicate that the photocatalytic activity of Ti/Si mixed materials depends on the adsorption ability of composites and the photocatalytic activity of the titanium oxide.

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“…Bu e -ve h + çiftle-ri taneciklerin yüzeyine difüzlenerek ortamdaki su ve oksijen gibi reaktiflerle redoks tepkimesi baúlatarak hidroksil radikallerinin oluúmasÕnÕ sa÷lamaktadÕr. Oluúan hidroksil radikalleri bakterilerin yapÕsÕnda bulunan organik bileúikleri oksitleyerek bakterileri etkisiz hale getirmektedir [48]. YarÕ iletken metal oksitler içinde bant boúlu÷u görünür ÕúÕ÷a en yakÕn olan TiO 2 kolay bulunmasÕ, toksin özellik göstermemesi nedeniyle yaygÕn olarak kullanÕlmaktadÕr [49].…”

Section: Antimikrobiyal Nanokompozitlerunclassified

Polimer Esaslı Nanokompozitler ve Tekstil Uygulamaları

Erem¹,

Özcan²

2013

Tekstil ve Mühendis

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Nanoteknolojinin geliúmesi ile nanokompozitlerin üretimi ve kullanÕmÕ artmÕútÕr. Nanokompozitlerin en yaygÕn kullanÕlanlarÕnÕn baúÕnda polimer nanokompozitler gelmektedir. Polimer nanokompozitler, polimer matrislere eriyikten lif çekimi esnasÕnda, tanecik, tüp ya da lif formundaki nano boyutlu dolgu maddelerinin karÕútÕrÕlmasÕ ile elde edilmektedir. Polimer nanokompozitlerin kullanÕmÕ sayesinde daha mukavemetli, daha dayanÕklÕ ve fonksiyonel ürünler üretmek mümkün olmaktadÕr. Nanokompozitlerin tekstil sektöründe kullanÕmÕ ile antimikrobiyal, UV daya-nÕmlÕ, yüksek mukavemetli, elektrik iletken ve kir tutmaz özelli÷e sahip tekstil ürünleri üretmek mümkün olmuútur. Bu çalÕúmada, polimer nanokompozitlerin üretiminde kullanÕlan nano malzemeler hakkÕnda bilgi verilerek son yapÕya kattÕklarÕ özellikler açÕklanmaktadÕr. AyrÕca nanokompozitlerin farklÕ üretim teknikleri karúÕlaútÕrÕlarak üretim yönteminin nanokompozitlerin kullanÕm alanlarÕnÕ nasÕl de÷iútirdi÷i incelenmektedir.

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Antimicrobial activity of composite nanoparticles consisting of titania photocatalytic shell and nickel ferrite magnetic core

Cited by 212 publications

References 26 publications

FTIR and Raman Characterization of TiO2 Nanoparticles Coated with Polyethylene Glycol as Carrier for 2-Methoxyestradiol

FTIR and Raman Characterization of TiO2 Nanoparticles Coated with Polyethylene Glycol as Carrier for 2-Methoxyestradiol

Phenol and methylene blue photodegradation over Ti/SBA-15 materials under uv light

Polimer Esaslı Nanokompozitler ve Tekstil Uygulamaları

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