High-Isolation Dual-Frequency Operation Patch Antenna Using Spiral Defected Microstrip Structure

Fallahzadeh, S.; Bahrami, Hadi; Akbarzadeh, Ali Reza; Tayarani, Majid

doi:10.1109/lawp.2010.2043810

Cited by 41 publications

(21 citation statements)

References 6 publications

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“…The copolymer was dissolved by dichloromethane ( Figure 2D). To achieve precipitation, after 1 h, ice-cold diethyl ether was added under stirring conditions , Fallahzadeh et al 2010, Ebrahimnezhad et al 2013, Pourhassan-Moghaddam et al 2013, Ahmadi et al 2014, Ghasemali et al 2013). The solution was precipitated after 24 h. The precipitate was stored in a desiccator until it was used ( Davaran et al 2013, Ghasemali et al 2013.…”

Section: Synthesis and Characterization Of Pcl (1000)-peg (4000)-pcl mentioning

confidence: 99%

Comparison, synthesis and evaluation of anticancer drug-loaded polymeric nanoparticles on breast cancer cell lines

Eatemadi¹,

Darabi²,

Afraidooni³

et al. 2015

Artificial Cells, Nanomedicine, and Biotechnology

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Breast cancer is a major form of cancer, with a high mortality rate in women. It is crucial to achieve more efficient and safe anticancer drugs. Recent developments in medical nanotechnology have resulted in novel advances in cancer drug delivery. Cisplatin, doxorubicin, and 5-fluorouracil are three important anti-cancer drugs which have poor water-solubility. In this study, we used cisplatin, doxorubicin, and 5-fluorouracil-loaded polycaprolactone-polyethylene glycol (PCL-PEG) nanoparticles to improve the stability and solubility of molecules in drug delivery systems. The nanoparticles were prepared by a double emulsion method and characterized with Fourier Transform Infrared (FTIR) spectroscopy and Hydrogen-1 nuclear magnetic resonance ((1)HNMR). Cells were treated with equal concentrations of cisplatin, doxorubicin and 5-fluorouracil-loaded PCL-PEG nanoparticles, and free cisplatin, doxorubicin and 5-fluorouracil. The 3-[4,5-dimethylthiazol-2yl]-2,5-diphenyl tetrazolium bromide (MTT) assay confirmed that cisplatin, doxorubicin, and 5-fluorouracil-loaded PCL-PEG nanoparticles enhanced cytotoxicity and drug delivery in T47D and MCF7 breast cancer cells. However, the IC50 value of doxorubicin was lower than the IC50 values of both cisplatin and 5-fluorouracil, where the difference was statistically considered significant (p˂0.05). However, the IC50 value of all drugs on T47D were lower than those on MCF7.

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Section: Synthesis and Characterization Of Pcl (1000)-peg (4000)-pcl mentioning

confidence: 99%

Comparison, synthesis and evaluation of anticancer drug-loaded polymeric nanoparticles on breast cancer cell lines

Eatemadi¹,

Darabi²,

Afraidooni³

et al. 2015

Artificial Cells, Nanomedicine, and Biotechnology

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“…The key challenge of the duplex antennas is to improve ports isolation. There are several methods to eliminate the mutual interference between the transmitting and receiving ports such as employing multilayer feeding structures [1,2], using different feeding methods [3,4], or adding filtering structures to the feeding lines, like defected ground structures (DGS) [5,6], electromagnetic band-gap structures (EBG/PBG) [7,8], and defected microstrip structures (DMS) [9]. Although these antennas can realize duplex function and high isolation between ports, they usually suffer from large size and high cost.…”

Section: Introductionmentioning

confidence: 99%

Small Transmit-Receive Frequency Space Filtering Duplex Patch Antenna Array With High Isolation

Lin¹,

Xie²,

Zhang³

2017

PIER C

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Abstract-In this paper, a 2 × 1 duplex antenna array with small frequency space and high isolation between transmitting and receiving bands is presented. The duplex antenna array element consists of a pair of radiating patches for bidirectional radiation, a set of microstrip resonator and H-slot resonator coupled to the patches for transmitting, and the other set of microstrip and H-slot resonators coupled to the patches for receiving. The H slots are designed for the operations of coupling and the elements of the bandpass filters. The two antenna elements of the 2 × 1 array are connected by transmitting and receiving channels microstrip power-split resonators. The array achieves a compact size and high performances in terms of high isolation and small Tx-Rx frequency space. Higher than 30 dB and 40 dB ports isolation at 1.94-1.99 GHz and 2.43-2.52 GHz is realized. And the Tx-Rx frequency space Δf = (f r − f t ) is smaller than 0.23 times of the central frequency (f r + f t )/2.

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“…Future research will have to focus on the pharmacokinetics of the MNPs to ensure that the particles can remain in the patient's body for longer periods compared to the current period. Also, future research will focus on how the body can react positively to the MNPs (Fallahzadeh et al 2010). One of the most pursued areas of investigates in the development of cancer treatment strategies is delivery of anticancer drugs by blend with functionalized superparamagnetic iron oxide nanoparticles (SPIONs) to their targeted site.…”

Section: Introductionmentioning

confidence: 99%

Magnetic nanoparticles in cancer diagnosis and treatment: a review

Karkan

Mohammadhosseini

Panahi

et al. 2016

Artificial Cells, Nanomedicine, and Biotechnology

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Diagnosis and treatment of lung cancer have been characterized with a variety of challenges. However, with the advancement in magnetic nanoparticle (MNP) technology, many challenges in the diagnosis and treatment of lung cancer are on the decline. The MNPs have led to many break-through in cancer therapy. This paper seeks to establish the role of MNPs in diagnosis and treatment of lung cancer. It proposes that the existing challenges in the diagnosis and treatment of lung cancer can be addressed through application of MNPs in the process.

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High-Isolation Dual-Frequency Operation Patch Antenna Using Spiral Defected Microstrip Structure

Cited by 41 publications

References 6 publications

Comparison, synthesis and evaluation of anticancer drug-loaded polymeric nanoparticles on breast cancer cell lines

Comparison, synthesis and evaluation of anticancer drug-loaded polymeric nanoparticles on breast cancer cell lines

Small Transmit-Receive Frequency Space Filtering Duplex Patch Antenna Array With High Isolation

Magnetic nanoparticles in cancer diagnosis and treatment: a review

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