Improvement of Electric Field Focusing for Deep Hyperthermia in Breast Cancer Treatment by Using Microwave Dielectric Heating with Curved Plate Applicator

Kotchapradit, Supawat; Thosdeekoraphat, Thanaset; Santalunai, Samran; Thongsopa, Chanchai

doi:10.23919/apmc.2018.8617166

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…In the future, further research can focus on refining these designs and exploring their potential applications in other wireless communication scenarios [42], [43] and applications [44], [45], [46]. In addition, fabrication, cost, and integration of the metamaterial element in real-world applications will be investigated for further work.…”

Section: Discussionmentioning

confidence: 99%

Advancements in Mobile Communication: A Novel Sectoral Antenna Design Incorporating Magneto-Electric Curved Strip Dipoles and PRS Superstrate

Santalunai,

Naktong

et al. 2024

IEEE Access

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This research investigates the process of designing, practical implementation, and modification of features in a sectoral antenna for mobile communication technology. The study employs the principles of a magneto-electric dipole and metamaterials to achieve its objectives. The antenna comprises a pair of magneto-electric curved strip dipoles arranged in a cross configuration for feeding. The antenna superstructure is constructed using a metamaterial consisting of three layers of metallic rods and a U-shaped reflector plane. The feeding component is oriented orthogonally to the ground plane at angles of ±45 degrees and is powered by two crossed-shaped strips to achieve dual polarization. Circular polarization can be attained through a three-layer metamaterial, providing control over the electric field's magnitude and phase. Additionally, the U-shaped reflector plane reflects waves, effectively increasing the sectoral antenna's beamwidth. The sectoral antenna achieves a peak gain of 15.35 dBi, representing an improvement over the initial gain of 9.8 dBi achieved solely through the use of magneto-electric curved strip dipoles. This proposed methodology can be adapted to enable circular polarization for mobile communication.INDEX TERMS Circular polarization, magneto-electric antenna, metamaterials, curved strip dipole, high gain.

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Section: Discussionmentioning

confidence: 99%

Advancements in Mobile Communication: A Novel Sectoral Antenna Design Incorporating Magneto-Electric Curved Strip Dipoles and PRS Superstrate

Santalunai,

Naktong

et al. 2024

IEEE Access

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“…The increase in temperature may lead to inactivation and denaturation of cellular proteins which may cause the dysfunction of cellular activities and eventually cell death [64][65][66]. Traditionally, cancer cells and tumors can be fatally heated through microwave (high-frequency electromagnetic wave) irradiation [67][68][69], optical laser irradiation [70,71], or ohmic heat generation [72][73][74][75]. However, due to the nonspecific nature of heating (for microwave and ohmic heating) and the limited tissue penetration depth of laser, these techniques are difficult to use for thermal therapy of deep-seated tumors, especially within the principal body cavities such as in the abdomen, thorax, and skull, often yielding recurrent tumor growth [24].…”

Section: Introductionmentioning

confidence: 99%

“…However, due to the nonspecific nature of heating (for microwave and ohmic heating) and the limited tissue penetration depth of laser, these techniques are difficult to use for thermal therapy of deep-seated tumors, especially within the principal body cavities such as in the abdomen, thorax, and skull, often yielding recurrent tumor growth [24]. Another major disadvantage of traditional electromagnetic heating techniques is their nonspecific nature: both the diseased tissue and the neighboring healthy tissues may be heated directly [68,76], which may cause undesired dismal side effects if the healthy tissue performs critical functions. As a result, research has been focused on the use of targeted/specific thermal therapy methods to eliminate the cancerous cells by heating while minimizing damage to the surrounding healthy tissue.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Nanoparticle-Mediated Heating for Biomedical Applications

Kwizera

Stewart

Mahmud

et al. 2022

Journal of Heat Transfer

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Magnetic nanoparticles, especially superparamagnetic nanoparticles (SPIONs), have attracted tremendous attention for various biomedical applications. Facile synthesis and functionalization together with easy control of the size and shape of SPIONS to customize their unique properties, have made it possible to develop different types of SPIONs tailored for diverse functions/applications. More recently, considerable attention has been paid to the thermal effect of SPIONs for the treatment of diseases like cancer and for nanowarming of cryopreserved/banked cells, tissues, and organs. In this mini-review, recent advances on the magnetic heating effect of SPIONs for magnetothermal therapy and enhancement of cryopreservation of cells, tissues, and organs, are discussed, together with the non-magnetic heating effect (i.e., high Intensity focused ultrasound or HIFU-activated heating) of SPIONs for cancer therapy. Furthermore, challenges facing the use of magnetic nanoparticles in these biomedical applications are presented.

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