Two split rings resonator-based perfect metamaterial absorbers with the incident and polarization angle independent for sensing applications by Jahan, Mst Ishrat, Ullah, Mohammad, Hamzah, Ahmad, Rasidi, Roslan, Izan Izwan, Misnon, Jose, Rajan

“…The findings reveal that the absorber achieves a broad absorption spectrum, with simulated results from the CST Microwave Studio simulator indicating absorption peaks at 5.88, 9.20, and 15.88 GHz. whereas the strong absorbance is 99.91, 99.99, and 99.97 % with a good quality factor (Q) 29.40, 9.20, 13.23, respectively. …”
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Radiation-Induced Oxidation Reactions of 2-Selenouracil in Aqueous Solutions: Comparison with Sulfur Analog of Uracil by Konrad Skotnicki, Ireneusz Janik, Klaudia Sadowska, Grazyna Leszczynska, Krzysztof Bobrowski

“…In turn, at the lowest concentration of 2-SeU (0.05 mM) and pH 10, the transient absorption spectrum is dominated by an absorption band with an λ_max = 390 nm, which was assigned to the ^●OH adduct to the double bond at C5 carbon atom (3^●) based on DFT calculations. …”
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Broadband Visible Light-Absorbing [70]Fullerene-BODIPY-Triphenylamine Triad: Synthesis and Application as Heavy Atom-Free Organic Triplet Photosensitizer for Photooxidation by San-E Zhu, Jian-Hui Zhang, Yu Gong, Li-Feng Dou, Li-Hua Mao, Hong-Dian Lu, Chun-Xiang Wei, Hong Chen, Xue-Fei Wang, Wei Yang

“…By attaching two triphenylmethyl amine units (TPAs) to the π-core of BODIPY via ethynyl linkers, the absorption range of the antenna is extended to 700 nm with a peak at 600 nm. Thus, the absorption spectrum of <b>C₇₀-B-T</b> almost covers the entire UV–visible region (270–700 nm). …”
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Critical Evaluation of Green Synthesized Silver Nanoparticles-Kaempferol for Antibacterial Activity Against Methicillin-Resistant Staphylococcus aureus by Hairil Anuar AH, Abd Ghafar SA, Mohamad Hanafiah R, Lim V, Mohd Pazli NFA

“…The UV–visible absorption spectrum of the synthesized AgNP-K exhibited a broad peak at 447 nm. …”
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Identification of <i>p</i>-Coumaric Acid and Ethyl <i>p</i>-Coumarate as the Main Phenolic Components of Hemp (<i>Cannabis sativa</i> L.) Roots by Chang Min Oh, Joon Yong Choi, In Ah Bae, Hong Taek Kim, Seong Su Hong, Jay Kyun Noah, Yong Chool Boo

“…The main ultraviolet (UV)-absorbing phenolic compound contained in the EA fraction was identified as <i>p</i>-coumaric acid by comparing the retention time and UV absorption spectrum with a standard. Silica gel column chromatography was performed to isolate a hydrophobic derivative of <i>p</i>-coumaric acid contained in the MC fraction. …”
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High Resolution Fourier Transform Spectrometer for Ground-Based Verification of Greenhouse Gases Satellites by Hailiang Shi, Wei Xiong, Hanhan Ye, Shichao Wu, Feng Zhu, Zhiwei Li, Haiyan Luo, Chao Li, Xianhua Wang

“…Through the gas absorption method and the band scanning method of the hyperspectral monochromatic light source, the instrument’s absorption spectrum measurement capability and the Instrument Line Shape (ILS) are demonstrated. …”
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Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi₂O₃ Microrods under Visible-Light Irradiation by Dechong Ma, Jiawei Tang, Guowen He, Sai Pan

“…The photoluminescence spectra and diffuse reflectance spectrum (the band gap values of the Bi₂O₃ microrods are 2.79 eV) reveals that the absorption spectrum extended to the visible region, which resulted in a high separation and low recombination rate of electron–hole pairs. …”
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Protein Adsorption, Calcium-Binding Ability, and Biocompatibility of Silver Nanoparticle-Loaded Polyvinyl Alcohol (PVA) Hydrogels Using Bone Marrow-Derived Mesenchymal Stem Cells by Jeevithan Elango, Camilo Zamora-Ledezma, Frank Alexis, Wenhui Wu, José Eduardo Maté-Sánchez de Val

“…Thus, for the first time, the functional properties, like protein and mineral interactions, related to the proliferation of mesenchymal stem cells (MSCs) by silver nanoparticle (AgNP)-loaded PVA hydrogels (AgNPs-PVA-HGs) were investigated in the present study. The UV absorption spectrum and TEM microscopic results showed a maximum absorbance of synthesized AgNPs at 409 nm, with an average particle size of 14.5 ± 2.5 nm, respectively. …”
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Experimental and Theoretical Studies on Optical Properties of Tetra(Imidazole) of Palladium (II) Phthalocyanine by Abdelmajid Timoumi, Davoud Dastan, Bassem Jamoussi, Khaled Essalah, Omar Hammed Alsalmi, Noureddine Bouguila, Henda Abassi, Radhouane Chakroun, Zhicheng Shi, Ştefan Ţălu

“…In addition, time-dependent density functional theory (TD-DFT) was used to simulate the UV-Vis absorption spectrum of the (PdPc(Im)₄) molecule in the Dimethyl Sulfoxide (DMSO) solution phase. …”
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First-Principles Studies for Electronic Structure and Optical Properties of Strontium Doped β-Ga₂O₃ by Loh Kean Ping, Mohd Ambri Mohamed, Abhay Kumar Mondal, Mohamad Fariz Mohamad Taib, Mohd Hazrie Samat, Dilla Duryha Berhanuddin, P. Susthitha Menon, Raihana Bahru

“…The calculated optical properties for the absorption coefficient in Sr doping causes red-shift of the absorption spectrum, thus, strengthening visible light absorption. …”
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Prospect of ultrahigh-resolution fast neutron absorption spectroscopy based on a laser plasma electron accelerator by Wen-Zhao Wang, Jie Feng, Xiao-Peng Zhang, Yao-Jun Li, Wei-Jun Zhou, Wen-Chao Yan, Guo-Qiang Zhang, Chang-Bo Fu, Li-Ming Chen

“…However, due to the traditional neutron source pulse duration being of the order of nanoseconds, it is difficult to obtain a high-resolution absorption spectrum. Thus, we present a method of ultrahigh energy-resolution absorption spectroscopy via a high repetition rate, picosecond duration pulsed neutron source driven by a terawatt laser. …”
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Synthesis of Sulfur@g-C₃N₄ and CuS@g-C₃N₄ Catalysts for Hydrogen Production from Sodium Borohydride by Khulaif Alshammari, Turki Alotaibi, Majed Alshammari, Sultan Alhassan, Alhulw H. Alshammari, Taha Abdel Mohaymen Taha

“…The data of BET revealed a higher surface area (55 m²/g) for the CuS-g-C₃N₄ nanosheet. The UV–vis absorption spectrum of S@g-C₃N₄ showed a strong peak at 322 nm, which weakened after the growth of CuS at g-C₃N₄. …”
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Surface-Enhanced Raman Spectroscopic Investigation of PAHs at a Fe₃O₄@GO@Ag@PDA Composite Substrates by Junyu Liu, Wencan Cui, Shihua Sang, Liang Guan, Kecheng Gu, Yinyin Wang, Jian Wang

“…The morphology and structure of the SERS substrate were represented by transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and the UV–visible absorption spectrum (UV–vis spectra). The effect of different temperatures on SERS during synthesis was investigated, and it was found that the best effect was achieved when the synthesis temperature was 90 °C. …”
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Facile Synthesis of TiO₂/MoS₂ Composites with Co-Exposed High-Energy Facets for Enhanced Photocatalytic Performance by Xianjun Niu, Yien Du, Jian Liu, Jinxiao Li, Jiayi Sun, Yuwei Guo

“…The characterization has been performed by combining X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high resolution TEM (HRTEM), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) spectra, and UV-visible absorption spectrum analyses. The photocatalytic degradation of rhodamine B (RhB) in an aqueous suspension was employed to evaluate the photocatalytic activity of the as-prepared pH<i>x</i>-TiO₂/MoS₂ composites. …”
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Biomass Mediated Synthesis of ZnO and ZnO/GO for the Decolorization of Methylene Blue under Visible Light Source by Salma Ahmed Al-Zahrani, Khalid Umar, Saleh Ali Tweib, Jebrel Abdeljawad M. Rashd, Saima Khan Afridi, Showkat Ahmad Bhawani, Ahmed Al Otaibi, Najat Masood, Dorsaf Mansour, Anish Khan, Manikandan Ayyar

“…Further, a red shift was shown in the case of ZnO/GO, which was indicated by the UV–Vis absorption spectrum. In the TEM analysis, the particles were shown to be nanosized. …”
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Up-Conversion Photoluminescence in Thulia and Ytterbia Co-Doped Yttria-Stabilized Zirconia Single Crystals by Danni Huang, Tong Xiao, Beibei Fu, Shoulei Xu, Yuyang Huang, Wen Deng, Zhukun Zhou

“…There were seven absorption peaks located at around 358, 460, 679, 783.3, 850–1000, 1200, and 1721.5 nm that were observed in the absorption spectrum of the 2.0Yb/Tm: YSZ single crystal. …”
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Hierarchical-porous acoustic metamaterials: A synergic approach to enhance broadband sound absorption by Zichao Guo, Zhendong Li, Kexin Zeng, Xinying Lu, Jie Ye, Zhonggang Wang

“…Numerical simulations revealed the emergence of three distinct absorption peaks at frequencies of 0.76, 1.4, and 3.6 kHz, respectively, and the effective absorption spectrum exceeded 3.4 kHz. Overall, the proposed design highlights the role of hierarchical structures and porous materials in synthesizing superior sound-absorbing properties that fully elucidate the relationship between structure and performance, and provide an avenue for potential noise-control applications.…”
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Soft X-ray Transmission Microscopy on Lithium-Rich Layered-Oxide Cathode Materials by Andrea Sorrentino, Laura Simonelli, Arefehsadat Kazzazi, Nina Laszczynski, Agnese Birrozzi, Angelo Mullaliu, Eva Pereiro, Stefano Passerini, Marco Giorgetti, Dino Tonti

“…Energy-dependent full field transmission soft X-ray microscopy (TXM) is able to give a full picture at the nanometer scale of the chemical state and spatial distribution of oxygen and other elements relevant for battery materials, providing pixel-by-pixel absorption spectrum. We show different methods to localize chemical inhomogeneities in Li_1.2Mn_0.56Ni_0.16Co_0.08O₂ particles with and without VO_x coating extracted from electrodes at different states of charge. …”
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Analysis of Abnormal Birefringence and Graphite Inclusions in Zimbabwean Diamonds by SUN Chengyang, LU Taijin, SONG Zhonghua, HE Mingyue, DENG Yi

“…OBJECTIVES To determine if graphite inclusions in Zimbabwean diamonds are syngenetic or epigenetic, and to reveal the relationship between graphite inclusions and the infrared absorption spectrum, Raman scattering spectrum as well as birefringence and strain characteristics of diamonds. …”
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Two-dimensional electronic spectroscopy of a minimal photosystem I complex reveals the rate of primary charge separation by Akhtar, Parveen, Caspy, Ido, Nowakowski, Paweł J., Malavath, Tirupathi, Nelson, Nathan, Tan, Howe-Siang, Lambrev, Petar H.

“…The absorptive 2D electronic spectra revealed fast excitonic/vibronic relaxation on time scales of 50-100 fs from the high-energy side of the absorption spectrum. Antenna excitations were funneled within 1 ps to a small pool of chlorophylls absorbing around 687 nm, thereafter decaying with 4-20 ps lifetimes, independently of excitation wavelength. …”
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