Spectroscopic investigation of ultrasound assisted sonochemical synthesis of BiOCl: Dy3+ nanophosphors for latent fingerprints visualization

2021 ◽  
pp. 109039
Author(s):  
N. Latha ◽  
D. Kavyashree ◽  
D.R. Lavanya ◽  
G.P. Darshan ◽  
J. Malleshappa ◽  
...  
Keyword(s):  
Spectroscopic Investigation ◽  
Sonochemical Synthesis ◽  
Latent Fingerprints ◽  
Ultrasound Assisted

scholarly journals Sonochemical Synthesis of 2’-Hydroxy-Chalcone Derivatives with Potential Anti-Oomycete Activity

Antibiotics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 576
Author(s):  
Génesis López ◽  
Marco Mellado ◽  
Enrique Werner ◽  
Bastián Said ◽  
Patricio Godoy ◽  
...  
Keyword(s):  
Quantitative Structure Activity Relationship ◽  
Structural Features ◽  
Effective Concentration ◽  
Quantitative Structure ◽  
Sonochemical Synthesis ◽  
Qsar Analysis ◽  
Structure Activity ◽  
Half Maximal Effective Concentration ◽  
Amine Groups ◽  
Ultrasound Assisted

This work reports on the synthesis of eight new 2′-hydroxy-chalcones with potential anti-phytopathogenic applications in agroindustry, AMONG others, via Claisen–Schmidt condensation and ultrasound assisted reaction. Assays showed three chalcones with allyl moieties strongly inhibited growth of phytopathogenic oomycete Phytophthora infestans; moreover, compound 8a had a half maximal effective concentration (EC50) value (32.5 µg/mL) similar to that of metalaxyl (28.6 µg/mL). A software-aided quantitative structure–activity relationship (QSAR) analysis of the whole series suggests that the structural features of these new chalcones—namely, the fluoride, hydroxyl, and amine groups over the carbon 3′ of the chalcone skeleton—increase anti-oomycete activity.

Ultrasound assisted sonochemical synthesis of samarium doped Y2O3 nanostructures for display applications

2018 ◽  
Author(s):  
K. N. Venkatachalaiah ◽  
H. Nagabhushana ◽  
R. B. Basavaraj ◽  
M. Venkataravanappa ◽  
C. Suresh
Keyword(s):  
Sonochemical Synthesis ◽  
Ultrasound Assisted

A Novel Sonochemical Synthesis of Metal Oxides Based Bhasmas

2013 ◽  
Vol 754 ◽  
pp. 89-97 ◽  
Author(s):  
S. Sivasankaran ◽  
S. Sankaranarayanan ◽  
S. Ramakrishnan
Keyword(s):  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Environmentally Benign ◽  
Sonochemical Synthesis ◽  
Preparation Methods ◽  
Ancient India ◽  
Form Part ◽  
Traditional Preparation ◽  
Synthesis Procedure ◽  
Ultrasound Assisted

Metal oxides form part of inorganic medicines called Bhasmas, which has been used in a non-allopathic medicine system practiced in India called Ayurveda. Bhasmas may be classified under the nanomedicines of ancient India. The traditional preparation methods involve time consuming and complicated preparation procedures. This paper highlights a novel ultrasound assisted technique called sonochemical synthesis of transition metal oxides in a facile, faster, inherently safer and environmentally benign (green chemistry) way which could be considered to be used for the synthesis of metal oxides such as copper oxide which form part of the copper based Ayurvedic nanomedicine called tamra bhasma, which is copper in its oxide form and used therapeutically as a source of copper. The synthesis procedure outlined here could be considered for the preparation of other types of Bhasmas also.

Ultrasound assisted sonochemical synthesis of ZrO2: Eu3+ nanophosphor

2019 ◽  
Author(s):  
H. J. Amith Yadav ◽  
B. Eraiah ◽  
H. Nagabhushana
Keyword(s):  
Sonochemical Synthesis ◽  
Ultrasound Assisted

Ultrasound assisted rare earth doped Wollastonite nanopowders: Labeling agent for imaging eccrine latent fingerprints and cheiloscopy applications

2017 ◽  
Vol 51 ◽  
pp. 90-105 ◽  
Author(s):  
Basavaraj R.B. ◽  
Nagabhushana H. ◽  
Darshan G.P. ◽  
Daruka Prasad B. ◽  
Sharma S.C. ◽  
...  
Keyword(s):  
Rare Earth ◽  
Latent Fingerprints ◽  
Ultrasound Assisted ◽  
Rare Earth Doped

Sonochemical synthesis of 5-substituted 1H-tetrazoles catalyzed by ZrP2O7 nanoparticles and regioselective conversion into new 2,5-disubstituted tetrazoles

2015 ◽  
Vol 70 (11) ◽  
pp. 819-828 ◽  
Author(s):  
Javad Safaei-Ghomi ◽  
Soleiman Paymard-Samani ◽  
Safura Zahedi ◽  
Hossein Shahbazi-Alavi
Keyword(s):  
Ultrasound Irradiation ◽  
Sonochemical Synthesis ◽  
One Pot ◽  
Component Method ◽  
Disubstituted Derivative ◽  
Wide Range ◽  
Ultrasound Assisted ◽  
Work Up ◽  
Tetrazole Derivatives ◽  
Short Times

AbstractThe ultrasound-assisted preparation of 2-(1H-tetrazol-5-yl) acrylonitrile derivatives via a one-pot multi-component method is described successfully using ZrP2O7 nanoparticles as a catalyst. Readily available tetrazoles can be transformed into the corresponding 1,5- and 2,5-disubstituted tetrazoles. 2,4′-Dibromoacetophenone gave the corresponding 2,5-disubstituted derivative as the only isomer. Synthesis of tetrazole derivatives with excellent yields in short times, a wide range of products under ultrasound irradiation, environmental benignity and a simple work-up procedure are some of the important features of this protocol.

Some Results of the Spectroscopic Study of Four Close Binary Systems of Early Spectral Types

1965 ◽  
Vol 5 ◽  
pp. 120-130
Author(s):  
T. S. Galkina
Keyword(s):  
Spectroscopic Study ◽  
Spectral Type ◽  
Spectroscopic Investigation ◽  
Binary Systems ◽  
Quantitative Information ◽  
Close Binary ◽  
Physical Parameters ◽  
Absorption And Emission ◽  
Close Binary Systems ◽  
Quantitative Estimates

It is necessary to have quantitative estimates of the intensity of lines (both absorption and emission) to obtain the physical parameters of the atmosphere of components.Some years ago at the Crimean observatory we began the spectroscopic investigation of close binary systems of the early spectral type with components WR, Of, O, B to try and obtain more quantitative information from the study of the spectra of the components.

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