scholarly journals Amido Black 10B Dye Copper Complex�Synthesis, Characterization and Color Analysis

2020 ◽  
Vol 71 (8) ◽  
pp. 27-38
Author(s):  
Maria Elena Radulescu-Grad ◽  
Gabriela Vlase ◽  
Gheorghe Ilia ◽  
Adelina Andelescu ◽  
Simona Popa ◽  
...  
Keyword(s):  
Copper Complex ◽  
Color Space ◽  
Nitrogen Atmosphere ◽  
Fluorescent Light ◽  
Acid Dye ◽  
Color Analysis ◽  
Color Strength ◽  
Amido Black 10B ◽  
Vis Spectroscopy ◽  
Amido Black

The present paper presents the obtaining and the characterization of a new complex acid dye by combining the transition metal Cu (II) with an azo acid dye, namely Amido Black 10B (C.I. 20.470), as ligand. The ligand and the resulted new azo complex were characterized by FT/IR spectroscopy, UV-Vis spectroscopy, AAs spectrometry, thermal analysis, and PXRD spectrometry. The structure of the ligand and the structure of the new synthesized copper complex were elucidated by all the above mentioned analysis methods. The formation of the azo metal complex with Cu(II) was confirmed by UV-Vis spectrum. Thermogravimetric and spectral analysis reveal its different stability in the air and nitrogen atmosphere, with high nitrogen stability. The PXRD analysis shows crystalline structure for the copper complex. At the same time, the color analysis was performed for the ligand and the synthesized complex in powder by means of UV-Vis CIEL*a*b* color space parameters, under the CIE recommended illuminants: D65 (natural day light), A (incandescent light) and F2 (fluorescent light) under the standard 10� observer angle. An important color phenomenon, namely metamerism, was highlighted for the complex, as well. Due to the presence of the Cu (II) ions, this azo complex presents a different color, calculated by the color differences AE*ab and AC*, a superior saturation and color strength than its ligand.

Plaque Color Analysis by the Conventional Yellow-Color Grading System and Quantitative Measurement Using LCH Color Space

2007 ◽  
Vol 20 (5) ◽  
pp. 324-334 ◽  
Author(s):  
KATSUKI OKADA ◽  
YASUNORI UEDA ◽  
JOTA OYABU ◽  
NOBUYUKI OGASAWARA ◽  
ATSUSHI HIRAYAMA ◽  
...  
Keyword(s):  
Quantitative Measurement ◽  
Color Space ◽  
Grading System ◽  
Color Analysis ◽  
Color Grading ◽  
Yellow Color

Eco-friendly degradative decolourisation and detoxification of azo dye Amido Black 10B by Bacillus sp. strain AK1

2021 ◽  
pp. 1-15
Author(s):  
Ramesh S. Masarbo ◽  
Joan Chebet ◽  
H. C. Shrishail ◽  
T. B. Karegoudar
Keyword(s):  
Azo Dye ◽  
Bacillus Sp ◽  
Amido Black 10B ◽  
Amido Black

scholarly journals Structure and Properties of Polylactic Acid Biocomposite Films Reinforced with Cellulose Nanofibrils

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3306
Author(s):  
Qianqian Wang ◽  
Chencheng Ji ◽  
Jianzhong Sun ◽  
Qianqian Zhu ◽  
Jun Liu
Keyword(s):  
Polylactic Acid ◽  
Cellulose Nanofibrils ◽  
Nitrogen Atmosphere ◽  
Scanning Calorimetry ◽  
Enzymatic Pretreatment ◽  
Thermogravimetric Analyzer ◽  
Degradation Temperature ◽  
Biocomposite Films ◽  
Renewable Feedstock ◽  
Vis Spectroscopy

Polylactic acid (PLA) is one of the most promising biodegradable and recyclable thermoplastic biopolymer derived from renewable feedstock. Nanocellulose reinforced PLA biocomposites have received increasing attention in academic and industrial communities. In the present study, cellulose nanofibrils (CNFs) was liberated by combined enzymatic pretreatment and high-pressure homogenization, and then subsequently incorporated into the PLA matrix to synthesize PLA/CNF biocomposite films via solution casting and melt compression. The prepared PLA/CNF biocomposite films were characterized in terms of transparency (UV-Vis spectroscopy), chemical structure (attenuated total reflectance-Fourier transform infrared, ATR-FTIR; X-ray powder diffraction, XRD), thermal (thermogravimetric analyzer, TGA; differential scanning calorimetry, DSC), and tensile properties. With 1.0–5.0 wt % additions of CNF to the PLA matrix, noticeable improvements in thermal and physical properties were observed for the resulting PLA/CNF biocomposites. The 2.5 wt % addition of CNF increased the tensile strength by 8.8%. The Tonset (initial degradation temperature) and Tmax (maximum degradation temperature) after adding 5.0 wt % CNF was increased by 20 °C, and 10 °C, respectively in the nitrogen atmosphere. These improvements were attributed to the good dispersibility and improved interfacial interaction of CNF in the PLA matrix.

scholarly journals Coloration Characteristic and Population Genetic Analysis of Wild-Captured Giant Tiger Shrimp (Penaeus monodon) from Aceh Timur

2018 ◽  
Vol 23 (3) ◽  
pp. 123
Author(s):  
Indriatmoko Indriatmoko ◽  
Dimas A. Hedianto ◽  
Sari Budi Moria ◽  
Didik WH Tjahjo
Keyword(s):  
Penaeus Monodon ◽  
Color Space ◽  
Quantitative Information ◽  
Color Analysis ◽  
Population Genetic Analysis ◽  
Tiger Shrimp ◽  
16S Rdna Pcr ◽  
Aceh Province ◽  
Image Pixels ◽  
Space Data

Giant tiger shrimp (Penaeus monodon) has become a prime commodity in Indonesia which was produced by aquaculture and capture fisheries activities. Aceh Province, in this case mostly represented by Aceh Timur District, was well-known as the center of wild-captured-adult giant tiger shrimp. Several previous investigations had proved for its high-quality shrimp spawner in producing good eggs in quality and quantity under artificial spawning condition. Two main interesting points of wild giant tiger shrimp from Aceh Timur came from their coloration and population clusters. This report was aimed to provide that information pre-preliminary and highlighted quantitative information of coloration characteristic through RGB (Red Green Blue) and CIE Lab color space data analysis, as well as, 16S rDNA-PCR-RFLP genetic comparison among four population clusters in Aceh Timur Waters. The color analysis resulted in significant differences between wild-captured and pond-cultured giant tiger shrimp which produced R value 0.1524±0.0091 and 0.1268±0.0004, respectively. Total pixel analysis through L* a* b* color space has distinguished detailed differentiation between wild-captured and pond-cultured giant tiger shrimp acquired images. It is known that most of the wild-captured image pixels were concentrated in quadrant I (+a, +b) while pond-cultured in quadrant II (-a, +b) and III (-a, -b).Genotyping of represented samples from 4 population clusters, i.e. Aceh Tamiang, Langsa, Peudawa, and Julok produce 2 haplotype composite, AAA and AAB. Among 4 clusters, it was found that Julok has become the only cluster which has a different haplotype composite ratio (1:1) (D 0.0348, V 0,9501) from the others (4:1)(V 0.9504).

scholarly journals SELECTIVE LOCALIZATION OF NUCLEOLAR PROTEIN WITH AMIDO BLACK 10B

1966 ◽  
Vol 14 (1) ◽  
pp. 94-103 ◽  
Author(s):  
B. MUNDKUR ◽  
B. BRAUER
Keyword(s):  
Tumor Cells ◽  
Extraction Methods ◽  
Ehrlich Ascites Tumor ◽  
Nucleolar Protein ◽  
Ehrlich Ascites Tumor Cells ◽  
Ascites Tumor ◽  
General Applicability ◽  
Ehrlich Ascites ◽  
Amido Black 10B ◽  
Amido Black

Interphase nucleoli of Ehrlich ascites tumor cells were stained with amido black 10B to the exclusion of all other regions of interphase and mitotic cells. Proteins of the ascites fluid also remained unstained. Selectivity of the dye for nucleolar protein, established by blocking and extraction methods, is metal-mediated and involves amino groups predominantly. The conditions leading to selectivity are narrowly circumscribed in Ehrlich ascites tumor cells and, thus far, have not yielded equally satisfactory results with nontumor material to warrant general applicability of the method. A tentative explanation of the phenomenon is offered on the basis of numerous control experiments involving freezing-drying, variations in composition and application of reagents and other pertinent cytochemical procedures. The findings suggest that nucleolar proteins possess certain unique properties which are lost on altered to the extent that they are insensitive to the amido black 10B method once the proteins are released from the interphase nucleolus.

Synthesis of bentonite grafted by cationic polymer for the adsorption of Amido black 10B

2016 ◽  
Vol 294 (12) ◽  
pp. 2005-2012 ◽  
Author(s):  
Guoran Liu ◽  
Wenjuan Guo ◽  
Meishan Pei ◽  
Fanqiu Meng ◽  
Luyan Wang
Keyword(s):  
Cationic Polymer ◽  
Amido Black 10B ◽  
Amido Black
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