排序方式: 共有95条查询结果,搜索用时 46 毫秒
91.
Jamshid L. Manzoori Abolghasem Jouyban Mohammad Amjadi Vahid Panahi-Azar Amir Reza Karami-Bonari Elnaz Tamizi 《Food chemistry》2011
A simple spectrofluorimetric method is described for the determination of buparvaquone (BPQ), based on its quenching effect on the fluorescence intensity of Tb3+–deferasirox (DFX) complex as a fluorescent probe. The excitation and emission wavelengths were 328 and 545 nm, respectively. The optimum conditions for determination of BPQ were investigated considering the effects of various affecting parameters. The variations in fluorescence intensity of the system showed a good linear relationship with the concentration of BPQ in the range of 10–1500 μg L−1, its correlation coefficient was 0.999 with the detection and quantification limits of 1.1 and 3.4 μg L−1, respectively. Linearity, reproducibility, recovery, limits of detection and quantification made the method suitable for BPQ assay in biological fluids, meat, dairy products and BPQ parenteral solutions (vials). The method was applied to real samples of serum and milk of three cows receiving BPQ. 相似文献
92.
93.
Parikshit Moitra Maria Iftesum David Skrodzki Priyanka Paul Elnaz Sheikh Jennifer Lynn Gray Ketan Dighe Zach Sheffield Manas Ranjan Gartia Dipanjan Pan 《Advanced functional materials》2023,33(19):2212569
Liquid interfaces facilitate the organization of nanometer-scale biomaterials with plasmonic properties suitable for molecular diagnostics. Using hierarchical assemblage of 2D hafnium disulfide nanoplatelets and zero-dimensional spherical gold nanoparticles, the design of a multifunctional material is reported. When the target analyte is present, the nanocomposites’ self-assembling pattern changes, altering their plasmonic response. Using monkeypox virus (MPXV) as an example, the findings reveal that adding genomic DNA to the nanocomposite surface increases the agglomeration between gold nanoparticles and decreases the π-stacking distance between hafnium disulfide nanoplatelets. Further, this self-assembled nanomaterial is found to have minimal cross-reactivity toward other pathogens and a limit of detection of 7.6 pg µL−1 (i.e., 3.57 × 104 copies µL−1) toward MPXV. Overall, this study helped to gain a better understanding of the genomic organization of MPXV to chemically design and develop targeted nucleotides. The study has been validated by UV–vis spectroscopy, X-ray diffraction, scanning transmission electron microscopy, surface-enhanced Raman microscopy and electromagnetic simulation studies. To the best knowledge, this is the first study in literature reporting selective molecular detection of MPXV within a few minutes and without the use of any high-end instrumental techniques like polymerase chain reactions. 相似文献
94.
Sanati Parisa Hashemi Seyedeh-Sara Bahadoran Mahdi Babadi Arman Amani Akbari Elnaz 《SILICON》2022,14(3):851-857
Silicon - Escherichia coli (E. coli) bacteria can cause serious fatal health problems in human, thus early and quick pathogen detection of these bacteria is a crucial issue in hospitals, food... 相似文献
95.
Moosavifar Maryam Zarrini Gholamreza Mashmool-barjasteh Elnaz 《Journal of Inorganic and Organometallic Polymers and Materials》2022,32(3):781-790
Journal of Inorganic and Organometallic Polymers and Materials - This study aims at the preparation of antimicrobial nanoparticles hybrid based on silver (Ag) doped Zn1?xCuxO. Zn1?xCuxO... 相似文献