Trends and Perspectives of the Zika Pandemic: A Short Review

Radha, Baburajan; Muniraj, Gnanaraj

doi:10.21276/ijpbs.2016.6.3.20

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…In a second publication, [100] they made 30% acrylated chitosan with 1/2 GM/COS ratio to photo‐crosslink with diacrylated pluronic. Radha and Sudha [101] also claimed O ‐methacrylation in presence of CAN in water at 80 °C. Once again, only IR spectra were provided.…”

Section: Grafting Onto Amine and Hydroxylmentioning

confidence: 97%

Advances in chitooligosaccharides chemical modifications

et al. 2021

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Chitooligosaccharides (COS) differ from chitosan by their molar mass: those of COS are defined to be lower than 20 kg mol−1. Their functionalization is widely described in the literature and leads to the introduction of new properties that broaden their application fields. Like chitosan, COS modification sites are mainly primary amine and hydroxyl groups. Among their chemical modification, one can find amidation or esterification, epoxy‐amine/hydroxyl coupling, Schiff base formation, and Michael addition. When depolymerized through nitrous deamination, COS bear an aldehyde at the chain end that can open the way to other chemical reactions and lead to the synthesis of new interesting amphiphilic structures. This article details the recent developments in COS functionalization, primarily focusing on amine and hydroxyl groups and aldehyde‐chain end reactions, as well as paying considerable attention to other types of modification. We also describe and compare the different functionalization protocols found in the literature while highlighting potential mistakes made in the chemical structures accompanied with suggestions. Such chemical modification can lead to new materials that are generally nontoxic, biobased, biodegradable, and usable in various applications.

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Section: Grafting Onto Amine and Hydroxylmentioning

confidence: 97%

Advances in chitooligosaccharides chemical modifications

et al. 2021

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“… In DMF, the carbonyl carbon atom is bonded to a nitrogen atom; the nitrogen atom is less electronegative than the oxygen atom and is able to transfer electron density through resonance to the carbonyl oxygen atom . NH 4 F can dissolve in DMF, which leads to the formation of a NH 4 F–DMF complex that can provide a F − anion to form the [(DMF)NH 4 ] + complex cation In the presence of NH 4 F–DMF, F6‐14 can be converted into intermediate I‐1, probably because the mesomeric effect of the F atom in the 2‐position on the C(sp 2 ) atom is stronger than that of the Cl atom in the 1‐position on the C(sp 2 ) atom of F6‐13. Given that the mesomeric shift of electrons by the F atom in the 2‐position on the C(sp 2 ) atom is stronger than that caused by the Cl atom in the 1‐position on the C(sp 2 ) atom in intermediate I‐1, the nucleophilic F − anion adds to the less electronegative end of the C=C bond, which leads to the formation of intermediate I‐2.…”

Section: Impact Of Temperature On the Halogen‐transfer Isomerization mentioning

confidence: 99%

Section: Impact Of Temperature On the Halogen‐transfer Isomerization mentioning

confidence: 99%

Isomerization of Halogenated Cyclopentene over a NH₄F Catalyst

Zhang

Qing

et al. 2016

ChemCatChem

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The mechanism of the halogen‐transfer isomerization of halogenated cyclopentene was investigated over a NH4F catalyst in DMF. This catalytic system was to have the unique ability to isomerize halogenated cyclopentene selectively. The process of migration of the F atom in the 3‐position on the C(sp3) atom to the 4‐position on the C(sp3) atom is in chemical equilibrium, whereas the process of migration of the F atom in the 2‐position on the C(sp2) atom to the 3‐position on the C(sp3) atom is not. Therefore, halogenated cyclopentene containing fluorine on either the C(sp3) or C(sp2) atom could be prepared selectively in terms of the NH4F catalyst.

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Alternate paradigms on Zika virus-related complications: An analytical review

Radha¹,

Muniraj

2017

Asian Pacific Journal of Tropical Medicine

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The proportion of the reported cases of Zika virus (ZIKV) infection reached the status of a pandemic. Numerous studies are being conducted on the isolation of ZIKV strains from various epidemics, diagnosis of the infections, various animal models and cell culture designs to study the pathogenesis of ZIKV in the attempts to find an effective ZIKV vaccine. This review focuses upon the 'Off-Spectrum' body of studies which analyses the epidemiology, pathogenesis and other attributes of ZIKV in the light of various dissident hypotheses.

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Trends and Perspectives of the Zika Pandemic: A Short Review

Cited by 3 publications

References 13 publications

Advances in chitooligosaccharides chemical modifications

Advances in chitooligosaccharides chemical modifications

Isomerization of Halogenated Cyclopentene over a NH₄F Catalyst

Alternate paradigms on Zika virus-related complications: An analytical review

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Trends and Perspectives of the Zika Pandemic: A Short Review

Cited by 3 publications

References 13 publications

Advances in chitooligosaccharides chemical modifications

Advances in chitooligosaccharides chemical modifications

Isomerization of Halogenated Cyclopentene over a NH4F Catalyst

Alternate paradigms on Zika virus-related complications: An analytical review

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Product

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Isomerization of Halogenated Cyclopentene over a NH₄F Catalyst