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Characterization and antimicrobial,antioxidant,and anti-proliferative activities of green synthesized magnesium oxide nanoparticles with shoot extracts of Plicosepalus curviflorus

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Asian Pacific Journal of Tropical Biomedicine 2023年第7期13卷 315-324页

作者： Reem Hamoud Alrashoudi Manal Abudawood Ayesha Mateen Hajera Tabassum Noura Ibrahem Alghumlas sabiha fatima Basmah Almaarik Farah Maqsood Nawal M.Al Musayeib Musarat Amina Clinical Laboratory Sciences Department College of Applied Medical SciencesKing Saud UniversityRiyadh 12372Saudi Arabia Department of Optometry and Vision Science College of Applied Medical ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Pharmacognosy College of PharmacyKing Saud UniversityRiyadh 11495P.O.Box 22452Saudi Arabia

Objective:To synthesize magnesium oxide nanoparticles using ethanol extract of shoots of Plicosepalus curviflorus(PC-MgONPs)and evaluate the antimicrobial,antioxidant,and anti-proliferative activities of ***:The green synthesized PC-MgONPs were characterized by ultraviolet-visible(UV),Fourier-transform infrared spectroscopy,zeta potential,energy dispersive X-ray,and scanning electron ***,we investigated total antioxidant capacity and antimicrobial and anti-proliferative activities using breast cancer cell lines(MDA-231).Results:The UV spectrum of PC-MgONPs showed a sharp absorption peak at 300 *** presence of magnesium,oxygen,and sodium was confirmed by energy dispersive X-ray *** electron microscopy revealed PC-MgONPs as roughly spherical granular structures with sizes ranging from 20.0 to ***-MgONPs showed considerable antimicrobial activities against Escherichia coli,Staphylococcus aureus,methicillin-resistant Staphylococcus aureus,Pseudomonas aeruginosa and Candida albicans with zones of inhibition of 11-17 *** addition,total antioxidant capacity and anti-proliferative activity of PC-MgONPs against MDA-231 cells were ***:The synthesized PC-MgONPs could be a potent antimicrobial,antioxidant and anti-cancer agent,which needs further investigation.

关键词： PC-MgONPs Plicosepalus curviflorus FTIR Antimicrobial Cell viability Antioxidant

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Nonmetric Traits in Permanent Teeth as Clues to Ethnicity in Vidarbha Subpopulation to Aid Forensic Profiling:Pilot Study

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Journal of Forensic Science and Medicine 2024年第1期10卷 11-19页

作者： Vaishali Amarlal Sadhwani Nilima Prakash GLPradeep Rekha Patil Shubhechha Anand Khivsara sabiha Mokashi Khan MGV’S KBH Dental College NashikMaharashtraIndia Oral Cancer Screening and Awareness in Cancer Screening Vertical Indian Cancer SocietyMumbaiMaharashtraIndia

Introduction:Nonmetric dental traits have a crucial role in ethnic classification of populations that help in forensic racial *** studies have demonstrated the differences in the expression and frequency of dental traits between various ethnic groups for ancestry determination in the context of forensic dental *** present study is an attempt to assess the frequency and variation in nonmetric traits for establishing ethnicity in the Vidarbha ***:The aim of the study was to assess the frequency and variation of nonmetric traits in permanent teeth for establishing ethnicity in the Vidarbha *** and Methods:Participants of the Vidarbha subpopulation were selected by random sampling ***,premolars,and incisors were evaluated for frequency of nonmetric traits,and variations were graded according to Dentoanthropological System of State University of Arizona *** statistics,Chi-square test,and Student’s t-test were used for analysis of ***:The most common occlusal morphology in mandibular first and second molar was 5 cusp and 4 cusp,respectively,with the“+”groove *** 3 and cusp 4 were observed frequently in the maxillary *** lingual cusp was most commonly seen in mandibular premolars show while incisors showed faint ***:Our study concludes that nonmetric traits were present and showed variation in permanent maxillary and mandibular teeth among the Vidarbha *** 5 and Cusp 4 in first and second mandibular molars,respectively,groove pattern“+”and grade 1 protostylid were the most frequent grades observed in permanent mandibular *** lingual cusp was most commonly seen in mandibular premolars and faint shoveling was a notable feature in incisors of this population.

关键词： Cusp number ethnicity forensic anthropology molar protostylid

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Allogenic Stem Cell Transplantation and COVID-19 Antibodies: Mechanistic Insights and Recipient Concerns

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Open Journal of Immunology 2024年第2期14卷 16-32页

作者： Amna Umer Asma Umer Khayam Nasar Khan David Lawrence Greene Umm E. Habiba sabiha Shamim Pak-American Hospital Pvt. Ltd. Islamabad Pakistan R3 Medical Research LLC Scottsdale USA Bello Bio Labs and Therapeutics (SMC) Pvt. Ltd. Islamabad Pakistan Department of Biochemistry Rawalpindi Medical University Rawalpindi Pakistan Bello Bio LLC Scottsdale USA

Collecting umbilical cord stem cells is widely practiced due to its numerous benefits. Over the past decade, umbilical cord stem cells (UCSCs) have shown effectiveness in treating various conditions, such as bone pathologies, neuropsychiatry disorders, hereditary diseases, and metabolic disorders. However, factors like immunization affect the quantity and quality of cord harvesting. Studies suggest that antibodies from the mother pass through the umbilical cord to protect the infant against infections. Cleaning the umbilical cord before stem cell extraction is crucial to maintain sterility and cell integrity. Vaccinating a female donor, including for COVID-19, typically does not directly affect the stem cells. Although vaccines aim to trigger an immunological response, they generally do not affect the donor’s stem cells.

关键词： Vaccination Stem Cell Allogeneic COVID Antibodies

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Ferroresonance Overvoltage Mitigation Using STATCOM for Grid-connected Wind Energy Conversion Systems

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Journal of Modern Power Systems and Clean Energy 2022年第2期10卷 407-415页

作者： Mohamed I.Mosaad Nehmdoh A.sabiha Yanbu Industrial College Yanbu A1 SinaiyahKingdom of Saudi Arabia the Electrical Engineering Department Faculty of EngineeringMenofia University32511 Shebin ElkomEgyptand she is on leave to work at the Electrical Engineering DepartmentCollege of EngineeringTaif University21974 TaifKingdom of Saudi Arabia

We present the ferroresonance overvoltage mitigation concerning the power systems of the grid-connectcd wind energy conversion systems(WECSs).WECS is considered based on a doubly-fed induction generator(DFIG).Ferroresonance overvoltage associated with a single-pole outage of the line breaker is mitigated by fast regulating the reactive power using the static compensator(STATCOM).STATCOM controller is introduced,in which t>\o incorporated proportional-integral(PI)controllers are optimally tuned using a modified flow-er pollination algorithm(MFPA)as an optimization *** show the capability of the proposed STATCOM controller in mitigating the ferroresonance overvoltage,two test cases are introduced,which are based on the interconnection status of the power transformer used with the grid-connected *** results show that the ferroresonance disturbance can occur for the power transformers installed in the wind farms although the transformer terminals are interconnected,and neither side of the transformer is ***,as a mitigation method of ferroresonance overvoltage,the proposed STATCOM controller succeeds in improving the system voltage profile and speed profile of the wind turbine as well as protecting the system components against the ferroresonance overvoltage.

关键词： Ferroresonance overvoltage doubly-fed induction generator(DFIG) static compensator(STATCOM) wind energy conversion system(WECS).

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Bismuth based photoelectrodes for solar water splitting

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Journal of Energy Chemistry 2021年第10期30卷 517-530,I0014页

作者： sabiha Akter Monny Zhiliang Wang Muxina Konarova Lianzhou Wang Nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaQLD 4072Australia

Photoelectrochemical water splitting is a sustainable path to generate valuable hydrogen using sunlight and water as the only *** significant efforts to date,it is still a challenge to achieve photoelectrode with superior performance and long-term *** bismuth-based semiconductor materials have demonstrated excellent visible light harvesting capability and suitable band edge for water ***,we summarized the latest studies conducted on bismuth-based photoelectrodes for photoelectrochemical water ***,photoelectrochemical properties of copper bismuth oxide(CuBi_(2)O_(4)),bismuth ferrites(BiFeO_(3),Bi_(2)Fe_(4)O_(9)),bismuth vanadate(BiVO_(4)),bismuth tungstate(Bi_(2)WO_(6)),bismuth molybdate(Bi_(2)MoO_(6))and bismuth oxyhalids(BiOX,X=I,Cl,Br)are *** to achieve high stability and photolectrochemical performance were discussed in the aspects of nanostructure formation,heterostructure assembly,practical defect engineering,preferential facet growth and oxygen evolution catalyst incorporation.

关键词： Photocathode Photoanode Bismuth Photoelectrochemical water splitting

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