Enzyme decorated dendritic bimetallic nanocomposite biosensor for detection of HCHO

Talanta ◽  
2021 ◽  
pp. 123054
Author(s):  
Rajendra Kumar Reddy Gajjala ◽  
Pravin Savata Gade ◽  
Praveena Bhatt ◽  
Neelam Vishwakarma ◽  
Suman Singh
2015 ◽  
Vol 127 (9) ◽  
pp. 1607-1617 ◽  
Author(s):  
EZAT HAMIDI-ASL ◽  
JAHAN-BAKHSH RAOOF ◽  
NAHID NAGHIZADEH ◽  
SIMIN SHARIFI ◽  
MOHAMMAD SAEID HEJAZI

2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Amir Lashgari ◽  
Shahriar Ghamami ◽  
Saeedeh Shahbazkhany ◽  
Guillermo Salgado-Morán ◽  
Daniel Glossman-Mitnik

Bimetallic materials, which have the ability to convert heat change into mechanical movement, normally consist of two bonded strips of dissimilar metals that expand at different rates. We describe how we made a manganese-chromium (Mn-Cr) bimetallic nanocomposite using the centrifuge method and a low-to-high approach. We conducted scanning electron microscope (SEM) imaging, energy-dispersive X-ray spectroscopy (EDX) analysis, and X-ray diffraction spectra of the nanocomposite to prove its identity. We examined how centrifuge speed, process time, and the use of an “intruder agent” affected the properties of the material. The fractal dimension is a significant factor that can be used to approximate the surface roughness, the texture segmentation, and an image of the studied compounds. We calculated the technique of fractal dimensions using image-processing values on a computer and histogram plot with the SEM image of the Mn-Cr bimetallic nanocomposite using MATLAB software. We applied the Statistical Package for the Social Sciences software for statistics data extracted from the SEM image of the nanocomposite and obtained the following results: mean = 1.778, median = 1.770, max = 1.98, min = 1.60, skewness = 0.177, range = 0.38, and harmonic mean = 1.771 for fractal dimension of the SEM image.


2021 ◽  
Vol 220 ◽  
pp. 168-181
Author(s):  
Charlton van der Horst ◽  
Bongiwe Silwana ◽  
Martin Makombe ◽  
Emmanuel Iwuoha ◽  
Vernon Somerset

2020 ◽  
Vol 11 (1) ◽  
pp. 8087-8095

Synthesis of metal nanoparticles using plant extracts is attracted much to the recent researchers due to its simplicity, which integrates chemical technology. Special attention is given to the green synthesis of nanoparticles by easily available plants with an eco-friendly system compared to other conventional methods. Silver-Gold nanocomposite (Ag-Au NCp’s) is synthesized by bi reduction of silver nitrate and gold chloride. These metal salts are simultaneously reduced by tea extract to form respective silver and gold nanocomposite. The structure and morphology of as-prepared Ag-Au NCp’s sample were characterized by employing powder X-ray diffraction (XRD) tool and by Scanning Electron Micrograph (SEM) tool, respectively. Fourier Transform Infrared (FTIR) spectral study was undertaken to know the bonding in the prepared silver sample. Morphology and particle size of the above composite was studied by the Transmission electron microscope (TEM) tool. Energy-dispersive X-ray analysis (EDX) study was undertaken to know the formation of Ag-Au NCp’s. Antibacterial activity study is undertaken to know its biological behavior.


2021 ◽  
Vol 188 (12) ◽  
Author(s):  
Mohammad Mehmandoust ◽  
Yasamin Khoshnavaz ◽  
Mustafa Tuzen ◽  
Nevin Erk

Author(s):  
Kathalingam Adaikalam ◽  
Sivalingam Ramesh ◽  
P. Santhoshkumar ◽  
Heung Soo Kim ◽  
Hyun‐Chang Park ◽  
...  

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