Pyridinium salts: from synthesis to reactivity and applications

S Sowmiah, JMSS Esperança, LPN Rebelo… - Organic Chemistry …, 2018 - pubs.rsc.org
Structurally diverse pyridinium salts are quite familiar structures in many natural products
and bioactive pharmaceuticals. Over the centuries, these privileged scaffolds have played …

Chitosan-based hemostatic sponges as new generation hemostatic materials for uncontrolled bleeding emergency: Modification, composition, and applications

Z Liu, Y Xu, H Su, X Jing, D Wang, S Li, Y Chen… - Carbohydrate …, 2023 - Elsevier
The choice of hemostatic technique is a curial concern for surgery and as first-aid treatment
in combat. To treat uncontrolled bleeding in complex wound environments, chitosan-based …

An overview of current knowledge on the properties, synthesis and applications of quaternary chitosan derivatives

ED Freitas, CF Moura Jr, J Kerwald, MM Beppu - Polymers, 2020 - mdpi.com
Chitosan, a chitin-derivative polysaccharide, known for its non-toxicity, biocompatibility and
biodegradability, presents limited applications due to its low solubility in neutral or basic pH …

Demulsification of stable seawater/Arabian heavy crude oil emulsions using star-like tricationic pyridinium ionic liquids

AO Ezzat, AM Atta, HA Al-Lohedan - Fuel, 2021 - Elsevier
Green oil-field chemicals based on ionic liquids (ILs) are highly recommended as
demulsifiers for heavy crude oil emulsions due to their low vapor pressure, high thermal and …

New amphiphilic pyridinium ionic liquids for demulsification of water Arabic heavy crude oil emulsions

AO Ezzat, AM Atta, HA Al-Lohedan… - Journal of Molecular …, 2020 - Elsevier
Recently ionic liquids (ILs) have been approved recognition as environmentally safe
chemicals in a wide variety of applications including petroleum industry. In the present work …

Self-assembling and biological properties of single-chain dicationic pyridinium-based surfactants

RR Kashapov, YS Razuvayeva, AY Ziganshina… - Colloids and Surfaces B …, 2019 - Elsevier
In this work, the dicationic surfactants containing viologen and vinylbipyridinium moieties
and hexadecyl chains were synthesized, and their aggregation behavior in water solutions …

Macrocyclic Conformational Switch Coupled with Pyridinium-Induced PET for Fluorescence Detection of Adenosine Triphosphate

BS Morozov, F Gargiulo, S Ghule, DJ Lee… - Journal of the …, 2024 - ACS Publications
The binding of nucleotides is crucial for signal transduction as it induces conformational
protein changes, leading to downstream cellular responses. Synthetic receptors that bind …

1-Alkyl-(N,N-dimethylamino)pyridinium bromides: inhibitory effect on virulence factors of Candida albicans and on the growth of bacterial pathogens

M Sundararaman, R Rajesh Kumar… - Journal of medical …, 2013 - microbiologyresearch.org
A homologous series of 1-alkyl-(N, N-dimethylamino) pyridinium bromides, termed
compounds 1–11, was synthesized and studied for antibacterial and antifungal activity. Of …

Spectroscopic, optical, thermal, antimicrobial and density functional theory studies of 4-aminopyridinium 4-hydroxy benzoate hydrate crystal

PK Devi, K Venkatachalam, M Poonkothai - Journal of Molecular Structure, 2016 - Elsevier
Abstract The organic crystal 4-aminopyridinium 4-hydroxy benzoate hydrate was grown
using slow evaporation method. Various characterization techniques such as single crystal …

New amphiphilic tricationic imidazolium and pyridinium ionic liquids for demulsification of arabic heavy crude oil brine emulsions

AO Ezzat, HA Al-Lohedan, AM Atta - ACS omega, 2021 - ACS Publications
Preparation of new green oilfield chemicals based on ionic liquids (ILs) having higher
demulsification efficiency to solve the heavy crude oil brine water emulsions became a …