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  1. AU="Aaliya Minhaz"
  2. AU=Jahn Katharina
  3. AU="Krach, Sören"
  4. AU="Bower, Hilary"
  5. AU="Kansakar, Prerana"
  6. AU="McCullagh, Elizabeth A"
  7. AU="Pereira, Ivanio Alves"
  8. AU="Singh, Rupinder"
  9. AU="Leung, Cheuk Lun"
  10. AU=Berman Claudia G
  11. AU=Chang Wen Xiu
  12. AU=Chen Jianchun
  13. AU="Zhou, Long" AU="Zhou, Long"
  14. AU=Bauer Michael AU=Bauer Michael
  15. AU=Clapp Benjamin
  16. AU="Makarenko, V"
  17. AU="Stahl, Anna"
  18. AU="Wa, Qingbo"
  19. AU="Annette T. Byrne"
  20. AU="Godwin Oligbu"

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  1. Artikel ; Online: Antioxidant, antibacterial, and catalytic performance of biosynthesized silver nanoparticles of Rhus javanica, Rumex hastatus, and Callistemon viminalis

    Wajheeba Khan / Naeem Khan / Nargis Jamila / Rehana Masood / Aaliya Minhaz / Farhat Amin / Amir Atlas / Umar Nishan

    Saudi Journal of Biological Sciences, Vol 29, Iss 2, Pp 894-

    2022  Band 904

    Abstract: Rhus javanica (Anacardiaceae) containing abundant glucopyranosidal constituents, is traditionally used to treat gastric and duodenal ulcer, dysentery, and diarrhea. Rumex hastatus (Polygonaceae) widely distributed in Pakistan, has traditional importance ... ...

    Abstract Rhus javanica (Anacardiaceae) containing abundant glucopyranosidal constituents, is traditionally used to treat gastric and duodenal ulcer, dysentery, and diarrhea. Rumex hastatus (Polygonaceae) widely distributed in Pakistan, has traditional importance in treating wound healing, jaundice, rheumatism, and skin diseases. Callistemon viminalis (Myrtaceae), a rich source of essential oils, saponins, triterpenoids, phloroglucinols, and flavonoids is used in industries, perfumes, nutrition, and cosmetics. Taking the importance of the subject plants, this study is designed to synthesize silver nanoparticles via aqueous extracts of R. javanica (RJAgNPs), R. hastatus (RHAgNPs), and C. viminalis (CVAgNPs). Synthesis, surface, and sizes of silver nanoparticles (AgNPs) were confirmed using spectroscopic techniques including ultraviolet–visible (UV–Vis), Fourier transform-infrared (FT-IR), and scanning electron microscopy (SEM). AgNPs were produced in ratios 1:15, 1:16, and 1:9 and inferred via appearance of a sharp surface plasmon resonance (SPR) absorption peak (400–435 nm), which represented well-defined, stable, and spherical AgNPs. From SEM analysis, the sizes of RJAgNPs, RHAgNPs, and CVAgNPs were found to be 67 nm, 61 nm, and 55 nm, respectively. The synthesized AgNPs exhibited potential free radical scavenging, antibacterial, and catalytic properties in degradation of dyes including Congo red, methylene blue, methyl orange, rhodamine B, ortho and para-nitrophenols, and several food colours. Hence, the subject AgNPs in the current study might display promising role in drug development and remediation of environmental/industrial effluents.
    Schlagwörter Rhus javanica ; Rumex hastatus ; Callistemon viminalis ; AgNPs ; Antibacterial ; Rhodamine B ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 540
    Sprache Englisch
    Erscheinungsdatum 2022-02-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Schiff base stabilized silver nanoparticles as potential sensor for Hg(II) detection, and anticancer and antibacterial agent

    Aaliya Minhaz / Naeem Khan / Nargis Jamila / Fatima Javed / Muhammad Imran / Shaukat Shujah / Sadiq Noor Khan / Amir Atlas / Muhammad Raza Shah

    Arabian Journal of Chemistry, Vol 13, Iss 12, Pp 8898-

    2020  Band 8908

    Abstract: This study reports a facile synthesis of silver nanoparticles (C3-AgNPs) by chemical route, using C3; 2,2′-((1E,1′E)-(propane-1,3-diylbis(azanylylidene))bis(methanylylidene))diphenol (3) and silver nitrate. The formation of nanoparticles was monitored ... ...

    Abstract This study reports a facile synthesis of silver nanoparticles (C3-AgNPs) by chemical route, using C3; 2,2′-((1E,1′E)-(propane-1,3-diylbis(azanylylidene))bis(methanylylidene))diphenol (3) and silver nitrate. The formation of nanoparticles was monitored using UV–Vis spectroscopy by the appearance of typical surface plasmon absorption maxima. The synthesized C3-AgNPs were characterized using Fourier-Transform-infrared (FTIR) and atomic force microscopy (AFM) techniques. In addition, the effect of concentration, temperature, time, pH, and stability in salts solution on C3-AgNPs was determined. From AFM, C3-AgNPs were found polydispersed with average size of 29.93 nm. Furthermore, the study reports C3-AgNPs as sensitive protocol for the detection of toxic metal; Hg(II) in tap water. From ten salts tested, C3-AgNPs demonstrated a sensitive and selective spectrophotometric signal and aggregation induced decrease of surface plasmon resonance (SPR) band. The nanosensor probe displayed a sensitive response to Hg(II) in a wide range of concentrations and pH. In addition, the decrease in SPR band of C3-AgNPs due to Hg(II) was not affected by tap water samples. C3-AgNPs also exhibited a redox catalytic potential in dyes degradation. In biological application, C3-AgNPs exhibited significant anticancer and antibacterial potential of 65 to 94% at 24–72 h, and inhibition zone of 7–18 mm, respectively. Hence, the synthesized C3-AgNPs could have promising application in environmental and pharmacological remediation.
    Schlagwörter Silver nanoparticles ; Hg(II) sensor ; Tap water ; Redox ; Anticancer ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 500
    Sprache Englisch
    Erscheinungsdatum 2020-12-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Piper longum catkin extract mediated synthesis of Ag, Cu, and Ni nanoparticles and their applications as biological and environmental remediation agents

    Nargis Jamila / Naeem Khan / Amina Bibi / Adnan Haider / Sadiq Noor Khan / Amir Atlas / Umar Nishan / Aaliya Minhaz / Fatima Javed / Ahtaram Bibi

    Arabian Journal of Chemistry, Vol 13, Iss 8, Pp 6425-

    2020  Band 6436

    Abstract: Piper longum (long pepper) in dried form is used in several traditional medicines and as a spice. The present study highlights nutritional and toxic elements content, synthesis, and characterization of silver, copper oxide, and nickel nanoparticles using ...

    Abstract Piper longum (long pepper) in dried form is used in several traditional medicines and as a spice. The present study highlights nutritional and toxic elements content, synthesis, and characterization of silver, copper oxide, and nickel nanoparticles using P. longum catkin extract. The study also determined anticancer, antioxidant, antimicrobial, and redox catalytic activities of the synthesized NPs. The P. longum extract mediated nanoparticles (PLNPs) synthesized at different pH and ratios were characterized by UV–Vis (ultra-violet-visible), FT-IR (Fourier-Transform infrared), and scanning electron and atomic force microscopic (SEM, AFM) techniques. Elemental content of P. longum catkin determined by inductively coupled plasma-optical emission spectroscopy (ICP-OES) and ICP-mass spectrometry (ICP-MS) indicated appreciable concentrations of nutritional elements, and well below permissible ranges of toxic elements. Well-defined and stable silver nanoparticles (PLAgNPs) were formed in 1:4 to 1:6 ratios, while copper oxide and nickel NPs (PLCuONPs and PLNiNPs) were found prominent in 1:6 ratio. In determining the effect of pH on synthesized PLNPs, sharp intense absorption peaks were obtained under slightly neutral to highly basic conditions (pH 6 to 13) for PLAgNPs, whereas for PLCuONPs and PLNiNPs, pH 7–8 was optimum. In biological activities, PLNPs exhibited significant anticancer efficacy against DU-145 (prostate cancer) cell line in the range from 92.7% (PLCuONPs) to 100% (PLAgNPs, PLNiNPs). Fuurthermore, the sythesized NPs exhibited significant antioxidant, antimicrobial, and redox catalytic properties. This study concluded the promising nutritional, biological and environmental remediation applications, and hence, further exploration of the synthesized NPs in biological and clinical applications is currently under investigation.
    Schlagwörter P. longum ; Elemental content ; Nickel nanoparticles ; Inductively coupled plasma-optical emission spectroscopy ; Atomic force microscopy ; Anticancer ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 540
    Sprache Englisch
    Erscheinungsdatum 2020-08-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel: Fluorescent supramolecular tweezers for selective recognition of cephradine

    Khan, Burhan / Aaliya Minhaz / Ihsan Ali / Muhammad Ishaq / Muhammad Raza Shah / Said Nadeem / Sammer Yousuf

    Tetrahedron letters. 2015 Jan. 21, v. 56, no. 4

    2015  

    Abstract: Novel supramolecular molecular tweezers based on a biphenyl bis-triazole hexahydroquinoline system are designed and synthesized as a highly sensitive and selective fluorescent probe for recognizing and detecting cephradine in the presence of cefotaxime, ... ...

    Abstract Novel supramolecular molecular tweezers based on a biphenyl bis-triazole hexahydroquinoline system are designed and synthesized as a highly sensitive and selective fluorescent probe for recognizing and detecting cephradine in the presence of cefotaxime, amoxicillin, penicillin, 6-aminopenicillanic acid, diclofenac, pefloxacin, ceftriaxone, cefaclor and paracetamol at a pH of 7.7. The detection limit is calculated to be 1μM with a regression coefficient of 0.99. The binding ratio of the tweezers and cephradine is determined to be 1:1 according to ESI-MS analysis, which is further supported by the Job plot. The structure of the supramolecular molecular tweezers and its precursors are characterized by IR, NMR, mass spectroscopy and XRD.
    Schlagwörter acetaminophen ; amoxicillin ; biphenyl ; ceftriaxone ; chemical reactions ; chemical structure ; detection limit ; diclofenac ; electrospray ionization mass spectrometry ; fluorescence ; fluorescent dyes ; nuclear magnetic resonance spectroscopy ; pH ; regression analysis ; triazoles ; X-ray diffraction
    Sprache Englisch
    Erscheinungsverlauf 2015-0121
    Umfang p. 581-585.
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel
    ZDB-ID 204287-3
    ISSN 1873-3581 ; 0040-4039
    ISSN (online) 1873-3581
    ISSN 0040-4039
    DOI 10.1016/j.tetlet.2014.12.040
    Datenquelle NAL Katalog (AGRICOLA)

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