Said SHAH

Dr. Said SHAH

Physics, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
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Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2023 in BioMed Research International
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Journal Article
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SZSana Zahoor
Sana Zahoor
SSSadia Sheraz
Sadia Sheraz
DSDilawar Farhan Shams
Dilawar Farhan Shams
GRGauhar Rehman
Gauhar Rehman
SNSaira Nayab
Saira Nayab
WKWaliullah Khan
Waliullah Khan
Nanotechnology has recently appeared as an important study subject in modern material sciences. Greener synthesis of nanoparticles has gained the attention of many scientists because of its integral characteristics such as effectiveness, eco‐friendly, and low cost. In the present study by following the green synthesis approach, zinc oxide nanoparticles (ZnO NPs) were formed for the very first time by using Senecio chrysanthemoides leaf extract as a reducing agent. The UV‐Vis spectrophotometer was used to study the synthesized ZnO NPs, and the specific peak was found to be at 349 nm. The characteristic Fourier transform infrared (FTIR) peak was found to be at 449 cm-1 which displays the peak of ZnO molecules. The surface morphology of the ZnO NPs was determined via scanning electron microscopy (SEM). The energy‐dispersive X‐ray spectroscopy (EDX) study showed that the synthesized ZnO NPs are present at the weight percentage of 66.38%. The X‐ray diffraction (XRD) spectrum confirmed the hexagonal phase wurtzite structure, with the average particle size of 31 nm, and demonstrated the crystalline structure of ZnO NPs. Additionally, to all these experiments, we compared the anti‐inflammatory properties of biogenic ZnO NPs to a standard drug. Biosynthesized ZnO NPs have revealed an effective anti‐inflammatory activity at a higher concentration (100 mL-1) and showed 73% inhibition in comparison with diclofenac sodium drug. Zinc oxide was shown to be compatible with diclofenac sodium, according to the results. The ZnO NPs produced using the greener synthesis process have the potential to be used in a broad range of fields and also used as a good anti‐inflammatory agent.

1 February 2023 in ACS Omega
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Journal Article
Open access
SKShaukat Khattak
Shaukat Khattak
MAMohammed Abohashrh
Mohammed Abohashrh
Imtiaz AhmadImtiaz Ahmad
Imtiaz Ahmad
MHMudasser Husain
Mudasser Husain
IUIrfan Ullah
Irfan Ullah
VTVineet Tirth
Vineet Tirth
Coded within Wien2K, we carry out DFT-based calculations for investigations of the structural, elastic, optoelectronic, and thermoelectric properties of BaXF3 (X = Co, Ir) fluoro-perovskites. The Birch-Murnaghan fit to the energy-vs-volume data and formation energy shows that these fluoro-perovskites are structurally stable. The phonon calculation confirms the thermodynamic stability, while the relation between elastic constants such as C 11 - C 12 > 0, C 11 > 0, C 11 + 2C 12 > 0, and B > 0 validates the mechanical stability of the compounds. BaIrF3 exhibits a strong ability to endure compressive and shear stresses. BaCoF3 shows a weaker capacity of withstanding changes in volume, attributed to a lower bulk modulus. Demonstrating a higher G-modulus of rigidity than the BaIrF3, BaCoF3 demonstrates stronger resistance to change the shape and both compounds are found to be anisotropic and brittle. The determined band structure profiles reveal that both BaCoF3 and BaIrF3 demonstrate a metallic nature. In addition, the metallic nature of BaCoF3 and BaIrF3 is reinforced by the density-of-states (DOS) study, where Co and F atoms contribute significantly to the total DOS in the valence band in the case of BaCoF3, while that of BaIrF3 is predominated by the Ba and F atoms. The computed values of ε1(0) for BaCoF3 and BaIrF3 are approximately 30 and 19, respectively, which are in line with Penn's model. The researched materials are confirmed to be strong contenders for optoelectronics by the lack of absorption in the visible range. For their potential use in thermoelectric device applications, thermoelectric parameters such as temperature-dependent Seebeck coefficient, specific heat capacity, thermal conductivity, power factor, and figure of merit are also investigated, which show that these materials are thermally stable and promising for applications in thermoelectric devices.

1 October 2012 in Organic Electronics
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MAMushtaq Ali
Mushtaq Ali
MAMamatimin Abbas
Mamatimin Abbas
SSSaid SHAH
Said SHAH
RTRouzhaji Tuerhong
Rouzhaji Tuerhong
AGAmanda Generosi
Amanda Generosi
RGRoberto Gunnella
Roberto Gunnella

1 August 2018 in Journal of Power Sources
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BABasit Ali
Basit Ali
AUAta Ur-Rehman
Ata Ur-Rehman
FGFouzia Ghafoor
Fouzia Ghafoor
MSMuhammad Imran Shahzad
Muhammad Imran Shahzad
SSSaid SHAH
Said SHAH
SASyed Mustansar Abbas
Syed Mustansar Abbas

12 May 2023 in ACS Omega
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SNSaira Nayab
Saira Nayab
AAAftab Alam
Aftab Alam
NANasir Ahmad
Nasir Ahmad
SKSher Wali Khan
Sher Wali Khan
WKWaliullah Khan
Waliullah Khan
HLHyosun Lee
Hyosun Lee
Novel thiophene-derived Schiff base ligand DE, where DE is (E)-N1,N1-diethyl-N2-(thiophen-2-ylmethylene)­ethane-1,2-diamine, and the corresponding M­(II) complexes, [M­(DE)­X2] (M = Cu or Zn, X = Cl; M = Cd, X = Br), were prepared and structurally characterized. X-ray diffraction studies revealed that the geometry around the center of the M­(II) complexes, [Zn­(DE)­Cl2] and [Cd­(DE)­Br2], could be best described as a distorted tetrahedral. In vitro antimicrobial screening of DE and its corresponding M­(II) complexes, [M­(DE)­X2], was performed. The complexes were more potent and showed higher activities against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa, fungi Candida albicans, and protozoa Leishmania major compared to the ligand. Among the studied complexes, [Cd­(DE)­Br2] exhibited the most promising antimicrobial activity against all the tested microbes compared to its analogs. These results were further supported by molecular docking studies. We believe that these complexes may significantly contribute to the efficient designing of metal-derived agents to treat microbial infections.

1 October 2020 in Journal of Luminescence
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Journal Article
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IUI. Ullah
I. Ullah
SSSaid SHAH
Said SHAH
GRG. Rooh
G. Rooh
NSN. Srisittipokakun
N. Srisittipokakun
AKA. Khan
A. Khan
SKS. Kothan
S. Kothan