Autoimmune diseases with thousand faces

Požar, Hajnalka; Požar, Čaba

doi:10.5937/pramed1904019p

Cited by 4 publications

(4 citation statements)

References 16 publications

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“…In the following, we show that the relationship between the spectrometer output and the sample photoconductivity is linear. In high frequency measurements, the properties of materials are conveniently described by the concept of surface impedance at a finite electromagnetic frequency of ω: , which contains the effects of magnetism (through the permeability, μ), dielectrics (through the permittivity, ϵ), and conductivity (through σ).…”

Section: Methods and Toolsmentioning

confidence: 99%

Ultralong Charge Carrier Recombination Time in Methylammonium Lead Halide Perovskites

et al. 2022

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Due to their exceptional photovoltaic properties, metal halide perovskites (MHPs) are extensively studied for their potential applications in solar cells. In recent years, the power conversion efficiencies of MHPs-based solar cells rapidly increased from the initial few % towards more than 25 % for single-junction devices. Therefore, also taking into account their low costs and ease of manufacturing, MHPs-based solar cells have become the fastest-advancing photovoltaic technology. In this regard, much of the recent work has been dominated by absorber materials based on methylammonium MHPs, such as MAPbX 3 , where MA=CH 3 NH 3 and X=Cl, Br and I. Here, we present the results of contactless time-resolved photoconductivity measurements in an exceptionally wide range of temperatures of 4 to 290 K that were performed for the various crystalline forms of the three parent MAPbX 3 , i.e., MAPbCl 3 , MAPbBr 3 and MAPbI 3 . This approach was made possible by the use of a high quality-factor (Q) microwave resonator, which cooperated with a commercially available microwave bridge equipped with an automatic frequency control (AFC) and a helium gas-flow cryostat.The structural phase transitions from orthorhombic to tetragonal are found to drastically affect the transient photoconductivity signal and we also observe ultra-long charge carrier recombination times approaching 70 µs at low temperatures. The difference caused by morphology on the photophysical properties is supported by a marked difference between rapidly cooled (quenched) and slowly cooled samples. The sensitive technique also allowed to observe differences between samples with different morphologies and crystallite sizes.

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Section: Methods and Toolsmentioning

confidence: 99%

Ultralong Charge Carrier Recombination Time in Methylammonium Lead Halide Perovskites

et al. 2022

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“…Rapid advances in the study of the interface of Nano‐materials with biomolecules have led to the programmed self‐assembly of nanoparticles through biomolecules. This will result in preserving and improving human health, using molecular knowledge of the human body on a Nano‐scale [120] . Examples of drugs based on nanocarriers available in the market are listed in Table 3.…”

Section: Classification Of Nanoparticlesmentioning

confidence: 99%

Nano‐Biotechnology and Challenges of Drug Delivery System in Cancer Treatment Pathway: Review Article

Asadipour

Asgari

Mousavi

et al. 2023

Chemistry & Biodiversity

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In this review, we discuss Nanotechnology models, which have been developed recently in cancer treatment. Nanotechnology manipulates matter at the atomic and molecular scale to create materials with new and advanced properties. Nano‐biotechnology consists of the branches of nanotechnology that have been applied in biology (molecular and cellular genetics) and biotechnology. Nano‐biotechnology allows us to put components and compounds into cells and build new materials using new methods like assembly. Cancer is a disease caused by an uncontrolled division of abnormal cells in a part of the body. Its therapeutic methods include chemotherapy, radiation, or surgery, but the effects of these techniques are not only on tumor tissue and may affect healthy tissues. Nano‐Biotech applications regarding cancer include drug delivery, treatment, and foresight therapy. This review article aims to obtain a proper mentality of the current technologies of Nano‐biotechnology for cancer treatment.

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“…The transformer impedance, ZT and the length of transformer, L are derived by equation 9, 10 and 11. The transformer impedance, ZT is given by David et al, [14].…”

Section: Design Of Quarter-wave Impedance Matchingmentioning

confidence: 99%

5.8 GHz Circularly Polarized Rectangular Microstrip Antenna Arrays simulation for Point-to-Point Application

Jamlos

Sabri

Jamlos

et al. 2022

ARASET

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In this paper, the design and simulation of rectangular microstrip antenna arrays for improving antenna gain is performed for point-to-point application. The proposed design is composed of four elements microstrip antenna with an array configuration operating at 5.8 GHz. Each element is constructed from four truncated arrays radiating elements and an inclined slot on each patch which capable to achieve circular polarized capability. The design of the 2x1 and 2x2 of rectangular microstrip array antenna was implemented from the designed of single rectangular patch antenna as the basic building element. The designed 2x1 and 2x2 array were fed by microstrip transmission line which applied a technique of quarter wave impedance matching. The antenna design was etched on Rogers RT 5880 substrate with 2.1 and 1.53 mm of dielectric constant and thickness respectively. All the designed structure were simulated in CST software. The main results of the designed antennas were compared in terms of gain, axial ratio and return loss. Based on the return loss simulation results, the designed antennas resonated exactly at the desired resonant frequency of 5.8 GHz which indicates good antenna designs. Compared to the single patch antenna having an antenna gain of 8.26 dB, the 2x1 and 2x2 arrays achieved a gain of 10.24 dB and 13.29 dB respectively. The results show that the designed rectangular microstrip antenna arrays have an improved gain performance over the single patch antenna.

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Autoimmune diseases with thousand faces

Cited by 4 publications

References 16 publications

Ultralong Charge Carrier Recombination Time in Methylammonium Lead Halide Perovskites

Ultralong Charge Carrier Recombination Time in Methylammonium Lead Halide Perovskites

Nano‐Biotechnology and Challenges of Drug Delivery System in Cancer Treatment Pathway: Review Article

5.8 GHz Circularly Polarized Rectangular Microstrip Antenna Arrays simulation for Point-to-Point Application

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