Publications by authors named "C Kamal"
Motivated by the exceptional optoelectronic properties of 2D Janus layers (JLs), we explore the properties of group Va antimony-based JLs SbXY (X = Se/Te and Y = I/Br). Using Bader charges, the electric dipole moment in the out-of-plane direction of all the JLs is studied and the largest dipole moment is found to be in the SbSeI JL. Our results on the formation energy, phonon spectra, elastic constants, and molecular dynamics (AIMD) simulation provide insights into the energetic, vibrational, mechanical, and thermal stability of JLs.
View Article and Find Full Text PDFThe existence of liquid carbon as an intermediate phase preceding the formation of novel carbon materials has been a point of contention for several decades. Experimental observation of such a liquid state requires nonthermal melting of solid carbon materials at various laser fluences and pulse properties. Reflectivity experiments performed in the mid-1980s reached opposing conclusions regarding the metallic or insulating properties of the purported liquid state.
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- The study aimed to develop a validated method using RP-HPLC to analyze both the potency and related proteins in human insulin formulations simultaneously.
- The method involves a specific mobile phase and conditions, achieving high sensitivity and accuracy for insulin quantification, with a detection limit of 0.094 mg/ml and accuracy between 99-102.8%.
- By combining the analysis into a single run, the approach aims to save time and costs for quality control in manufacturing and regulatory settings, potentially improving the availability of high-quality insulin products for public health.
New cobalt(II), copper(II), and zinc(II) Schiff metal complexes were synthesized by the condensation reaction of 4-nitrobenzene-1,2-diamine with 3-4-(diethylamino)-2-hydroxybenzaldehyde. Fourier transform infrared, nuclear magnetic resonance, ultraviolet-visible, electron paramagnetic resonance, and high-resolution electrospray ionization mass spectrometry and powder X-ray diffraction were used to characterize the synthesized HL and its metal complexes. Conductance measurements, magnetic moment estimation, and metal estimation have all been determined and discussed.
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- Researchers developed a CsPbBr-coated poly(maleic anhydride-alt-1-octadecene) (CsPbBr/PMA) to enhance the stability of perovskite nanocrystals (PNCs) through a modified hot-injection method.
- The new PNCs showed a notable increase in green emission at 522 nm with a photoluminescence quantum yield of 86.8%, outperforming traditional CsPbBr PNCs at 54.2%.
- CsPbBr/PMA was successfully integrated into a white LED system, producing high-quality white light and demonstrating its potential as an efficient down-conversion material for lighting applications.