Wahidah H. Al‐Qahtani

King Saud University

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Mostafa A. Abdel-Maksoud

King Saud University

Hamada AbdElgawad

University of Antwerp

Ram K. Gupta

Pittsburg State University

Khuram Shahzad Ahmad

Fatima Jinnah Women University

Shaan Bibi Jaffri

Fatima Jinnah Women University

Mohammad K. Okla

King Saud University

Norah Alahmad

Princess Nourah bint Abdulrahman University

Xianfu Zhang

North China Electric Power University

Pengju Shi

Westlake University

Weilun Du

North China Electric Power University

Cooperative Institutions

King Saud University

Quaid-i-Azam University

Beni-Suef University

North China Electric Power University

Indian Agricultural Research Institute

Assiut University

King Abdulaziz University

Agricultural Research Center

Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology

Pir Mehr Ali Shah Arid Agriculture University

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Chitosan capped Ag/NiS nanocomposites: A novel colorimetric probe for detection of L-cysteine at nanomolar level and its anti-microbial activity

International Journal of Biological Macromolecules (2021)

Bijandra Kumar Mohammad K. Okla Mostafa A. Abdel-Maksoud Wahidah H. Al‐Qahtani Hamada AbdElgawad

Thermogravimetric analysis

Absorbance

10.1016/j.ijbiomac.2021.11.037

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Citations (9)

Unveiling anticancer, antimicrobial, and antioxidant activities of novel synthesized bimetallic boron oxide–zinc oxide nanoparticles

RSC Advances (2023)

Amr H. Hashem Samar H. Rizk Mostafa A. Abdel-Maksoud Wahidah H. Al‐Qahtani Hamada AbdElgawad

Bimetallic nanoparticles have received much attention recently due to their multifunctional applications, and synergistic potential at low concentrations. In the current study, bimetallic boron oxide-zinc oxide nanoparticles (B

Bimetallic strip

IC50

10.1039/d3ra03413e

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Citations (9)

Biosensors and Nanosensors for Determination of Fruit Safety

Emad Hamdy Khedr Wahidah H. Al‐Qahtani Nagwa Khedr

Nanosensor

10.1007/978-3-031-61095-0_8

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Citations (2)

BaS:MnS:Sb₂S₅ Mixed Metal Chalcogenide Cubes: Synthesis, Characterization, and Exploring Energy Storage and Production Potential

Applied Organometallic Chemistry (2024)

Khuram Shahzad Ahmad Shaan Bibi Jaffri Jehad S. Al‐Hawadi Harsh Panchal Ram K. Gupta

ABSTRACT Energy‐efficient semiconducting BaS:MnS:Sb 2 S 5 has been synthesized using a single source precursor method. The resulting dithiocarbamate metallic sulfide has an average crystallite size of 17.77 nm and a small band gap of 3.82 eV. A functional group investigation revealed the presence of several bonds, including the metal sulfide bond. This sulfide exhibited a double‐step thermal breakdown pattern. BaS:MnS:Sb 2 S 5 particles were formed like cubes and tended to form cube‐like formations. The electrochemical charge‐storing behavior of BaS:MnS:Sb 2 S 5 was investigated using a nickel foam electrode and a sulfide slurry. The fabricated electrode demonstrated a satisfactory capacity for charge storage, with a specific capacitance of 762.83 F g −1 . This indicates a substantial amount of potential for long‐term energy storage utilizing electrodes. This electrode has a specific power density of 9084.78 W kg −1 and a low series resistance of ( R s ) = 0.71 Ω, as per impedance measurements. Electro‐catalysis produced an OER overpotential and a corresponding Tafel slope of 233 mV and 157 mV/dec from the electrode. Conversely, for HER activity, the obtained overpotential and subsequent Tafel slope were 386 mV and 73 mV dec −1 , respectively.

Overpotential

Nickel sulfide

10.1002/aoc.7801

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Investigating the Endophyte Actinomycetota sp. JW0824 Strain as a Potential Bioinoculant to Enhance the Yield, Nutritive Value, and Chemical Composition of Different Cultivars of Anise (Pimpinella anisum L.) Seeds

Biology (2024)

Ahmed M. Mahmoud Ahmed Mohamed Reyad Maha H. Khalaf Mohamed S. Sheteiwy Mona F. A. Dawood

Anise (

Endophyte

10.3390/biology13080553

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Citations (7)

Correction: Unveiling anticancer, antimicrobial, and antioxidant activities of novel synthesized bimetallic boron oxide–zinc oxide nanoparticles

RSC Advances (2023)

Amr H. Hashem Samar H. Rizk Mostafa A. Abdel-Maksoud Wahidah H. Al‐Qahtani Hamada AbdElgawad

Correction for ‘Unveiling anticancer, antimicrobial, and antioxidant activities of novel synthesized bimetallic boron oxide–zinc oxide nanoparticles’ by Amr H. Hashem et al. , RSC Adv. , 2023, 13 , 20856–20867, https://doi.org/10.1039/D3RA03413E.

Bimetallic strip

Boron oxide

10.1039/d3ra90066e

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RSM-Based Optimization of Fermentation Conditions and Kinetic Studies of Glutamic Acid and Lysine Production by Corynebacterium glutamicum

Journal of Nanomaterials (2022)

Saira Bashir Rashida Bashir Muhammad Pervaiz Ahmad Adnan Wahidah H. Al‐Qahtani

Corynebacterium glutamicum is an authenticated microorganism that supports amino acid production consistent with dietary importance. Fermentation parameters like temperature, agitation speed, and carbon source concentration were optimized using response surface methodology. Surface response model suggested that optimal fermentation parameters including 30°C, 50 g/L glucose concentration, and shaking speed of 120 rpm furnished 14.2 g/L of glutamic acid and 5.1 g/L lysine, comparable with the predicted values. After optimizing fermentation parameters in shake flasks, the fermentation kinetics was studied in a stirred fermenter. The kinetic study revealed that the substrate consumption rate achieved a maximum level of 3.36 g/L/hour between 12 and 18 hours; afterwards, it decreased and fell to 1.9 g/L/hour. Average biomass yield over a period of 48 hours was 0.337 g/L; however, maximum biomass yield of 0.51 g/L was noted between 10 and 20 hours. Overall molar yield coefficient of CO 2 () was found to be 0.234. The molar yield coefficient of biomass () was 0.6 in exponential phase which decreased afterwards. This study indicates that the average biomass yield over a time of 48 hours was 0.337 g/L, with a maximum yield within 10 to 20 hours obtained under optimized conditions. The molar yield coefficient of CO 2 () was found to be 0.234. The molar yield coefficient of biomass () was 0.6 in exponential phase which decreased and fell to near zero at 48 hrs.

Corynebacterium glutamicum

Industrial fermentation

Glutamic acid

10.1155/2022/3713456

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Citations (5)

Scanning electron microscopic investigation on Chicory tribe (Compositae) botanical sources and their antimicrobial potential

Microscopy Research and Technique (2024)

Saleh AlNadhari Wahidah H. Al‐Qahtani Farooque Ali Bughio Rabia Asma Memon Muhammad Kamran

Abstract This study discusses the micro‐level structural details of Cichorieae pollen sources elucidated by scanning electron microscopy (SEM) and explains their symmetry and morphometry. The in‐depth knowledge from the electron ultrastructure of Asteraceae pollen has provided insights into enhanced pollen morphology, and the antimicrobial significance of species under study presents novel avenues for their natural defense mechanisms in the development of antimicrobial agents. In this research, both quantitative and qualitative features of pollen were examined. The pollen grains are prolate‐spheroidal and oblate‐spheroidal in shape, characterized by a maximum polar diameter of 55.6–61.0 μm and a maximum equatorial distance of 68.3–74.4 μm. SEM reveals various configurations such as echinate perforate‐tectate, psilate, and echino‐lophate perforate. The Cichorieae species have significant antimicrobial efficacy and are promising sources for the development of novel antimicrobial drugs with potential implications in pharmaceutical and healthcare industries. SEM analysis of Cichorieae pollens has provided remarkable insights into their unique structures, revealing diverse shapes and surface ornamentations, which can be used for accurate Asteraceae species identification. Research Highlights SEM provides unique pollen surface structures and patterns of Chicory pollen grains. Chemical composition of Chicory botanical sources provides valuable information on their potential as antimicrobial agents. SEM imaging reveals specialized fenestrate grain structures of taxonomic importance.

10.1002/jemt.24581

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Identification of hub genes associated with head and neck squamous cell carcinoma by integrated bioinformatics approach and RNA-seq validation analysis.

PubMed (2023)

Amir Shabeer Sara Mustafa Rimsha Sadia Bukhari Mostafa A. Abdel-Maksoud Saeedah Musaed Almutairi

Head and neck squamous cell carcinoma (HNSC) is one of the most lethal malignancies around the globe. Due to its complex nature, the diagnostic and prognostic signatures of HNSC remain poorly understood. This study was launched to identify signature genes and their signaling pathways related to the development of HNSC. In the current study, we retrieved the GSE53819 dataset from the Gene Expression Omnibus (GEO) database to determine the differentially expressed genes (DEGs) using the "Limma" R package. Adjusted P values P < 0.05 and |logFC| ≥ 1 were selected as the filtering conditions. To identify hub genes, the protein-protein interaction (PPI) network construction of the DEGs was performed using STRING. We further used UALCAN, GEPIA, OncoDB, GENT2, MEXPRESS, and HPA databases for the expression, validation, survival, and methylation analyses of the hub genes. The cBioPortal tool was used to investigate the genetic alterations in hub genes. CancerSEA, TIMER, DAVID, ENCORI, and DrugBank were also used to explore a few more hub gene-associated parameters. Lastly, HOK, FaDu, and SCC25 cell lines were used to validate hub gene expression via RNA sequencing (RNA-seq) technique. A total of top 250 DEGs were selected for detailed analysis in this study. From these DEGs, prognostic and diagnostic associated four hub genes, which could serve as potential molecular biomarkers and therapeutic targets in HNSC patients were identified. Four hub genes, including down-regulated DNAH1 and DNALI1, while up-regulated DNAH9 and CCDC151 were strongly implicated in HNSC. We also validated the same expression pattern of the hub genes using RNA-seq analysis in HNSC and normal cell lines. Moreover, this study also revealed some novel links between DNAH1, DNALI1, DNAH9, and CCDC151 expression and genetic alterations, promoter methylation status, immune cell infiltration, miRNAs, gene enrichment terms, and various chemotherapeutic drugs. In conclusion, we indicated four hub genes (DNAH1, DNALI1, DNAH9, and CCDC151) and their associated signaling pathways, which may improve our understanding of HNSC and could be used as new therapeutic targets.

RNA-Seq

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Spiro-type Self-assembled Hole Transporting Monolayer for Highly Efficient and Stable Inverted Perovskite Solar Cells and Modules

Energy & Environmental Science (2024)

Xianfu Zhang Botong Li Shaochen Zhang Zedong Lin Mingyuan Han

The twisted spiro-type SAM 4PA-spiro effectively suppresses molecular aggregation and ensures appropriate energy levels, providing an efficiency of 25.28 and 21.87% for the p–i–n PSCs (0.05 cm 2 ) and modules (29.0 cm 2 ).

10.1039/d4ee01960a

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Citations (2)