Article
Biochemistry & Molecular Biology
Ali Fransuani Jimenez-Gonzalez, Juan Manuel Ramirez-de-Arellano, Luis Fernando Magana Solis
Summary: We investigated the adsorption of spider silk's main building blocks, which can lead to the development of biocompatible materials and new biosensors. Using ab initio density functional theory methods, we studied the interaction between these molecules and a modified graphene surface. Graphene with vacancies was found to be the best candidate for optical biosensors to detect C=O amide and differentiate between amino acids. The electronic band structure of modified graphene only undergoes minor changes when interacting with amino acids.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Environmental
Yingying Zhou, Zhao-Xi Ye, Huang Huang, Yong Dong Liu, Rugang Zhong
Summary: This study investigated the formation mechanism of chloropicrin during chlorination using a combined computational and experimental approach. The research found that primary amines and free amino acids primarily contribute to the formation pathway of chloropicrin. Additionally, the elimination of hydrochloric acid from N,N-dichloro-amine and electrophilic addition of N-chloroalkylimide with hypochlorous acid were identified as the rate-limiting steps. Furthermore, 2-nitroethanol and N-methylhydroxylamine were proposed as potent chloropicrin precursors with the highest chloropicrin yields in the chlorination process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Do Soon Kim, Andrew Watkins, Erik Bidstrup, Joongoo Lee, Ved Topkar, Camila Kofman, Kevin J. Schwarz, Yan Liu, Grigore Pintilie, Emily Roney, Rhiju Das, Michael C. Jewett
Summary: The study introduces a method called Evolink, which enables high-throughput evolution of sequence-distant regions in large macromolecular machines and guides library design through computational RNA modeling. This approach may enhance the engineering of macromolecular machines for new functions in synthetic biology.
NATURE CHEMICAL BIOLOGY
(2022)
Article
Physics, Condensed Matter
Mina Mostafavi, Sepideh Tanreh, Mohammad Astaraki, Bahar Farjah, Melahatsadat Rasoolidanesh, Mahyar Rezvani, Masoud Darvish Ganji
Summary: The emerging field of nanobiotechnology focuses on the interaction between biomolecules and nanostructures to fabricate functional materials. This study investigated the interaction between glycine and metal organic frameworks (MOFs) using DFT calculations. Strong interactions were observed, and the formation of chemical bonds between glycine and MOF-5 was confirmed. These findings have implications for the development of nano-scaled drug delivery systems.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Environmental Sciences
Parichehr Hanachi, Samaneh Karbalaei, Sujuan Yu
Summary: Individual polystyrene microplastics had minimal effects on the nutritional parameters of fish muscle, but in combination with chlorpyrifos insecticide, significant alterations were observed. This study suggests that polystyrene microplastics can increase the toxicity and adverse effects of chlorpyrifos on fish muscle, leading to low nutritional value in fish from contaminated areas.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Rawlings A. Timothy, Hitler Louis, Eze A. Adindu, Terkumbur E. Gber, Ernest C. Agwamba, Offiong E. Offiong, Anthony M. S. Pembere
Summary: This study explores the interactions between collagen amino acids and composite materials, finding that glycine exhibits the highest adsorption and binding abilities, while hydroxyproline and proline show poor adsorptive behavior. These findings provide valuable insights into the interactions and potential applications in various fields.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Biochemistry & Molecular Biology
Marthe Malecange, Renaud Sergheraert, Beatrice Teulat, Emmanuelle Mounier, Jeremy Lothier, Soulaiman Sakr
Summary: In the past decade, plant biostimulants have been increasingly used in agriculture to improve the sustainability and resilience of crop production systems. Protein hydrolysates (PHs) are a main category of biostimulants that have beneficial effects on various physiological processes and enhance tolerance to abiotic stresses. However, the understanding of their mode of action is still incomplete. This review aims to provide a comprehensive overview of the hypothetical mechanisms of action of PHs and highlight knowledge gaps that require urgent attention in order to maximize the benefits of biostimulants in the context of climate change.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Nutrition & Dietetics
Alex Pinto, Fatma Ilgaz, Sharon Evans, Esther van Dam, Julio Cesar Rocha, Erdem Karabulut, Mary Hickson, Anne Daly, Anita MacDonald
Summary: This systematic review investigated the changes in phenylalanine/natural protein tolerance in well-controlled patients with phenylketonuria (PKU). The results showed that phenylalanine/natural protein tolerance increases with age, especially at the beginning of puberty and reaches its highest level at the end of adolescence. However, there is limited data available for adult patients, and caution is needed in interpreting the findings.
Article
Food Science & Technology
Chunning Luan, Min Zhang, Sakamon Devahastin, Yaping Liu
Summary: By utilizing two-step fermentation with LAB and Saccharomyces cerevisiae, the quality of horseradish sauce can be improved, with increased amino acid content, antioxidant activities, and flavorful compounds. Evaluation using electronic tongue and sensory analysis can determine the overall sensory quality of the sauce.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Agronomy
Youssef Elamine, Manuel Alaiz, Julio Giron-Calle, Raquel P. F. Guine, Javier Vioque
Summary: The search for new sources of plant protein is driven by increasing demand in developing countries and interest in healthy alternatives. Analysis of 23 wild legume seeds in Spain showed that species from tribe Trifolieae had the most balanced amino acid composition, but were deficient in sulfur amino acids. Some seeds were found to have high levels of the anticancer amino acid canavanine.
Article
Plant Sciences
Luiz Henrique Moro Rosso, Andre Froes de Borja Reis, Ignacio Antonio Ciampitti
Summary: This study compares the yield and composition of soybean seeds at different canopy portions and finds that while branches contribute to higher yield, the seeds produced have lower nutritional quality with uneven distribution of amino acids and oil concentrations.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biology
Jingxiang Li, Shupan Guo, Fangni Chai, Qi Sun, Pan Li, Li Gao, Lunzhi Dai, Xiaoxiao Ouyang, Zhihui Zhou, Li Zhou, Wei Cheng, Shiqian Qi, Kefeng Lu, Haiyan Ren
Summary: The study reveals that Enteropathogenic Escherichia coli (EPEC) regulates autophagosome formation in host cells through effector NleE, with PSMD10 identified as a direct interaction partner. The interaction between NleE and PSMD10 impairs host autophagy activity, shedding light on the mechanism through which EPEC attenuates host autophagy activity.
Review
Physics, Multidisciplinary
C. Romero-Muniz, J. G. Vilhena, R. Perez, J. C. Cuevas, L. A. Zotti
Summary: Azurin proteins are highly efficient at electron transport and have attracted significant attention in the field of protein electronics. However, the exact mechanism for charge flow through these systems is still debated.
FRONTIERS IN PHYSICS
(2022)
Article
Agriculture, Dairy & Animal Science
Rosana C. Maia, Luiz F. T. Albino, Horacio S. Rostagno, Maurilio L. Xavier Junior, Bruna S. Kreuz, Raully L. Silva, Bruno D. Faria, Arele A. Calderano
Summary: The aim of this study was to evaluate the effects of essential-to-total nitrogen ratios supplemented with nonessential amino acids in low-protein diets on the performance, nitrogen retention, and blood parameters of broiler chickens. The results showed that diets with an eN-to-tN ratio of 50% or less were more beneficial in maintaining broiler performance and efficient nitrogen metabolism.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Johnson Oluwaseun Odukoya, Julianah Olayemi Odukoya, Edwin Mpoh Mmutlane, Derek Tantoh Ndinteh
Summary: This study investigated the phytochemical and amino acid profiles of different medicinal plant parts used for cardiovascular disease (CVD) treatment in sub-Saharan Africa. Results showed that glutamic and aspartic acids were the most abundant amino acids, while lysine was the most limiting. Plants like P. biglobosa leaf had rich levels of total branched-chain amino acids (BCAAs), and A. cepa bulb had the highest total amino acid content, making it suitable for nutraceutical use for adults.
Article
Materials Science, Multidisciplinary
Rasha A. Youness, Mohammed A. Taha, Amany A. El-Kheshen, Nabil El-Faramawy, Medhat Ibrahim
MATERIALS RESEARCH EXPRESS
(2019)
Article
Chemistry, Physical
Zhenyu Yuan, Junpeng Zhao, Fanli Meng, Wenbo Qin, Yaru Chen, Minghui Yang, Medhat Ibrahim, Yong Zhao
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Chemistry, Multidisciplinary
H. Abdelsalam, N. H. Teleb, I. S. Yahia, H. Y. Zahran, H. Elhaes, M. A. Ibrahim
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2019)
Article
Chemistry, Analytical
Paola Grenni, Anna Barra Caracciolo, Livia Mariani, Martina Cardoni, Cristina Riccucci, Hannan Elhaes, Medhat A. Ibrahim
MICROCHEMICAL JOURNAL
(2019)
Article
Spectroscopy
Naziha S. Alghunaim, Sherif A. El-Khodary, Medhat Ibrahim, Gaber M. El-Enany
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2019)
Article
Materials Science, Multidisciplinary
Rasha A. Youness, Mohammed A. Taha, Medhat A. Ibrahim
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Biochemical Research Methods
Ahmed Refaat, Hanan Elhaes, Nabila S. Ammar, Hanan S. Ibrahim, Medhat Ibrahim
COMBINATORIAL CHEMISTRY & HIGH THROUGHPUT SCREENING
(2020)
Article
Chemistry, Physical
Rania Badry, Hend A. Ezzat, Sherif El-Khodary, Mohamed Morsy, Hanan Elhaes, Nadra Nada, Medhat Ibrahim
Summary: In this study, solid polymer electrolytes based on CMC with the addition of acetic acid and glycerol were prepared, characterized using various techniques, and tested for their electrical properties. The results showed that under certain conditions, these electrolytes exhibited high ionic conductivity and thermal stability.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Polymer Science
Ahmed A. Hamza, Mohammed A. El-Bakary, Medhat A. Ibrahim, Mohamed A. Elgamal, Nayera M. El-Sayed
Summary: A copolymer of polyglycolide (PGA) and trimethylene carbonate (TMC) called Maxon was investigated for its optical and mechanical properties as a surgical suture. The mechanical properties of the PGA/TMC copolymer decreased over time, with approximately 55% retention after 32 days of incubation. The sutures were found to be completely absorbed after approximately 8 weeks.
Article
Chemistry, Multidisciplinary
Ahmed M. Bayoumy, Islam Gomaa, Hanan Elhaes, Mohamed S. Abdel-Aal, Medhat A. Ibrahim
Summary: The study showed that interacting with water molecules changed the physical properties of G/NiO, making it more stable and enhancing its efficiency as a humidity sensor. Additionally, the interaction increased the ability to sense different water molecules by impacting the electron cloud on the terminals.
EGYPTIAN JOURNAL OF CHEMISTRY
(2021)
Article
Spectroscopy
Medhat Ibrahim, Yousry M. Issa, Gomaa Abdel-Maksoud, Mina Magdy
Summary: This study analyzed the paintings at normal and various aging times through three phases, revealing changes in the chemical structure of painting materials, the crystallinity of wood and canvas materials, and chromaticity coordinates. Darkening occurred in heat treatment, while fading was observed in UV irradiation treatment. The exposure time, chemical properties of materials, and optical properties of the paintings showed correlation.
SPECTROSCOPY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Rania Badry, Sherif El-Khodary, Hanan Elhaes, Nadra Nada, Medhat A. Ibrahim
EGYPTIAN JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Aleksandr S. Doroshkevich, Asif A. Nabiev, Artem V. Shylo, Anjey Pawlukojc, Viktor S. Doroshkevich, Valentina A. Glazunova, Tatyana Yu. Zelenyak, Nelya V. Doroshkevich, Khayom R. Rahmonov, Elhan Kh. Khamzin, Dilshod D. Nematov, Amondullo S. Burhonzoda, Mirzoaziz A. Khusenov, Kholmirzo T. Kholmurodov, Subrata Majumder, Maria Balasoiu, Afag Madadzada, Viktor I. Bodnarchuk, Medhat A. Ibrahim
EGYPTIAN JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Shimaa G. El Gabaly, Gehan M. Youssif, Ahmed M. Bayoumy, Hend Ezzat, Hanan Elhaes, Ahmed Refaat, Medhat A. Ibrahim
EGYPTIAN JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Vladislav A. Kinev, Pavel P. Gladyshev, Medhat A. Ibrahim
EGYPTIAN JOURNAL OF CHEMISTRY
(2019)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
