Ni-Doped ZrO2 nanoparticles decorated MW-CNT nanocomposite for the highly sensitive electrochemical detection of 5-amino salicylic acid

The Analyst ◽  
2021 ◽  
Author(s):  
Nandini Nataraj ◽  
Siva Kumar Krishnan ◽  
Tse-Wei Chen ◽  
Shen-Ming Chen ◽  
Bih-Show Lou
Keyword(s):  
Salicylic Acid ◽  
Electrochemical Detection ◽  
Zro2 Nanoparticles ◽  
Highly Sensitive ◽  
Amino Salicylic Acid

Ni-ZrO2/MWCNT/GCE for highly sensitive electrochemical detection of 5-ASA in biofluids.

Synthesis and Characterization of New Zinc Phthalocyanine - Dodecenyl Succinic Anhydride Benzoic Groups

2020 ◽  
Vol 17 (6) ◽  
pp. 488-495
Author(s):  
Hussein Ali Al-Bahrani ◽  
Mohanad Mousa Kareem ◽  
Abdul Amir Kadhum ◽  
Nour A. Alrazzak
Keyword(s):  
Salicylic Acid ◽  
Succinic Anhydride ◽  
Zinc Phthalocyanine ◽  
Central Metal ◽  
Target Compound ◽  
Compound I ◽  
Metal Phthalocyanines ◽  
Metal Atoms ◽  
Amino Salicylic Acid

Background: The phthalocyanines a series of compounds involves four iso-indole units linked by aza nitrogen atoms bonded with metal atoms that are normally located in the center a phthalocyanines ring. Some of the central metal-phthalocyanines can be excited by ultraviolet light and emit a fluorescence in far-red region. Objective: To synthesize a derivative of phthalocyanines namely 4,4',4' '-tri-(dodecenyl succinic anhydride)- 4' ' '-(5-amino salicylic acid) zinc phthalocyanine with a zinc central metal. Materials and Methods: The reaction of 4- nitro Phthalonitrile and 4- amino Phthalonitrile with ZnCl2 in the presence of dimethyl amino ethanol afforded 4,4',4' '-triamino-4' ' '-nitro zinc phthalocyanine. This product reacted with 5-amino salicylic acid to yield tetra-(5-amino salicylic acid) zinc phthalocyanine. A dodecenyl succinic anhydride was added on the amine group of benzoic rings to afford 4,4',4' '-tri-(dodecenyl succinic anhydride)-4' ' '-(5-amino salicylic acid) zinc phthalocyanine(I), the target compound. Results and Discussion: Compound I is successfully synthesized with a yield of 72% from tetra-(5-amino salicylic acid) zinc phthalocyanine with dodecenyl succinic anhydride. Conclusion: The newly synthesized molecule of 4,4',4' '-tri-(dodecenyl succinic anhydride)-4' ' '-(5-amino salicylic acid) zinc phthalocyanine (I), tetra-(5-amino salicylic acid) zinc phthalocyanine(E) and 4,4',4' '- triamino-4' ' '-nitro zinc phthalocyanine (S). The reaction of 4- nitro Phthalonitrile and 4- amino and the structure of compound I is confirmed and its formation was proven.

Synthesis of highly sensitive rGO@CNT@Fe2O3/polypyrrole nanocomposite for the electrochemical detection of Pb2+

2021 ◽  
Vol 26 ◽  
pp. 102005
Author(s):  
Balla Fall ◽  
Abdou K.D. Diaw ◽  
Modou Fall ◽  
Mohamed L. Sall ◽  
Momath Lo ◽  
...  
Keyword(s):  
Electrochemical Detection ◽  
Highly Sensitive

Crystals and molecular structure ofp-amino-salicylic acid

1954 ◽  
Vol 7 (12) ◽  
pp. 808-812 ◽  
Author(s):  
F. Bertinotti ◽  
C. Giacomello ◽  
A. M. Liquori
Keyword(s):  
Molecular Structure ◽  
Salicylic Acid ◽  
Amino Salicylic Acid

Carbon nanospheres modified with WO2-NaxWO3 nanoparticles for highly sensitive electrochemical detection of dopamine

2021 ◽  
pp. 106770
Author(s):  
Lei Fan ◽  
Yuying Xin ◽  
Yingming Xu ◽  
Xianfa Zhang ◽  
Xiaoli Cheng ◽  
...  
Keyword(s):  
Electrochemical Detection ◽  
Carbon Nanospheres ◽  
Highly Sensitive

scholarly journals MES7 Modulates Seed Germination via Regulating Salicylic Acid Content in Arabidopsis

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 903
Author(s):  
Wenrui Gao ◽  
Yan Liu ◽  
Juan Huang ◽  
Yaqiu Chen ◽  
Chen Chen ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Abiotic Stress ◽  
Seed Germination ◽  
Environmental Conditions ◽  
Acid Content ◽  
Hydrolytic Enzyme ◽  
Stress Conditions ◽  
Transitional Period ◽  
Highly Sensitive

Seed germination is an important phase transitional period of angiosperm plants during which seeds are highly sensitive to different environmental conditions. Although seed germination is under the regulation of salicylic acid (SA) and other hormones, the molecular mechanism underlying these regulations remains mysterious. In this study, we determined the expression of SA methyl esterase (MES) family genes during seed germination. We found that MES7 expression decreases significantly in imbibed seeds, and the dysfunction of MES7 decreases SA content. Furthermore, MES7 reduces and promotes seed germination under normal and salt stress conditions, respectively. The application of SA restores the seed germination deficiencies of mes7 mutants under different conditions. Taking together, our observations uncover a MeSA hydrolytic enzyme, MES7, regulates seed germination via altering SA titer under normal and abiotic stress conditions.

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