Synthesis, characterization, hydrolytic degradation, mathematical modeling and antibacterial activity of poly[bis((methoxyethoxy)ethoxy)phosphazene] (MEEP)

Abid, Muhammad Amin; Hussain, Shabbir; Intisar, Azeem; Rizwan, Muhammad; Ain, Quratul; Mutahir, Zeeshan; Yar, Muhammad; Aamir, Aqsa; Qureshi, Ahmad Kaleem; Jamil, Muhammad

doi:10.1007/s00289-021-03625-w

Cited by 6 publications

(1 citation statement)

References 40 publications

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“…PDI refers to the distribution breadth of a polymer's molecular weight; the larger the PDI is, the wider the molecular weight distribution. The PDI value of polymers produced via step-growth polymerization is usually greater than 2.0 [17]. In this study, the PDI value of γ-PGA produced by strain A-5 varied from 1.860 to 2.663, verifying that this γ-PGA belonged to a mixture with certain molecular weight ranges formed via stepwise polymerization.…”

Section: γ-Pga Fermentation By B Subtilis A-5supporting

confidence: 54%

γ-Polyglutamic Acid Production, Biocontrol, and Stress Tolerance: Multifunction of Bacillus subtilis A-5 and the Complete Genome Analysis

Bai

Zhang

et al. 2022

IJERPH

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Bacillus subtilis A-5 has the capabilities of high-molecular-weight γ-PGA production, antagonism to plant pathogenic fungi, and salt/alkaline tolerance. This multifunctional bacterium has great potential for enhancing soil fertility and plant security in agricultural ecosystem. The genome size of B. subtilis A-5 was 4,190,775 bp, containing 1 Chr and 2 plasmids (pA and pB) with 43.37% guanine-cytosine content and 4605 coding sequences. The γ-PGA synthase gene cluster was predicted to consist of pgsBCA and factor (pgsE). The γ-PGA-degrading enzymes were mainly pgdS, GGT, and cwlO. Nine gene clusters producing secondary metabolite substances, namely, four unknown function gene clusters and five antibiotic synthesis gene clusters (surfactin, fengycin, bacillibactin, subtilosin_A, and bacilysin), were predicted in the genome of B. subtilis A-5 using antiSMASH. In addition, B. subtilis A-5 contained genes related to carbohydrate and protein decomposition, proline synthesis, pyruvate kinase, and stress-resistant proteins. This affords significant insights into the survival and application of B. subtilis A-5 in adverse agricultural environmental conditions.

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Section: γ-Pga Fermentation By B Subtilis A-5supporting

confidence: 54%

γ-Polyglutamic Acid Production, Biocontrol, and Stress Tolerance: Multifunction of Bacillus subtilis A-5 and the Complete Genome Analysis

Bai

Zhang

et al. 2022

IJERPH

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Recent Developments in Antimicrobial and Antiviral Agents Based on Natural/Synthetic Polymers and Dendrimers: Design and Therapeutic Applications

Abd‐El‐Aziz,

Fouda,

Sharaby

et al. 2024

Macro Chemistry & Physics

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This review article explores the recent innovations in the field of antimicrobial and antiviral macromolecules. With the rising challenge of antibiotic resistance, as well as the overuse of antibiotics, there is a growing demand for efficient solutions to combat microbial and viral infections. The development of new effective antimicrobial and antiviral agents is highlighted. This review was designed to give a comprehensive view of the literature focusing on a few examples of combating microbial and viral infections in each section. A brief description of naturally occurring organic‐based materials that exhibited antimicrobial and/or antiviral activities is presented, focusing on polysaccharides, peptides and proteins. Synthetic organic‐based materials are divided into subsections including polymers, dendrimers, and nanomaterials. The synthesis and applications of inorganic materials such as polyphosphazenes and polysiloxanes, as well as tin‐, germanium‐ and gallium‐based materials are emphasized in this review. Organometallic macromolecules are also described, and their antimicrobial and antiviral activities are examined. Overall, this article provides a comprehensive overview of recent advancements in the design of antimicrobial and antiviral macromolecules, offering valuable insights into their potential applications in biomedical research and combating drug‐resistant microorganisms and viruses.This article is protected by copyright. All rights reserved

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Amphiphilic Polyphosphazene for Fluorocarbon Emulsion Stabilization

Wang,

Liu,

Zang

et al. 2024

Small

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High internal phase emulsions (HIPEs) have been of great interest for fabricating fluorinated porous polymers having controlled pore structures and excellent physicochemical properties. However, it remains a challenge to prepare stable fluorocarbon HIPEs, due to the lack of suitable surfactants. By randomly grating hydrophilic and fluorophilic side chains to polyphosphazene (PPZ), a comb‐like amphiphilic PPZ surfactant with biodegradability is designed and synthesized for stabilizing water/fluorocarbon oil‐based emulsions. The hydrophilic–lipophilic balance of PPZs can be controlled by tuning the grating ratio of the two side chains, leading to the preparation of stable water‐in‐oil HIPEs and oil‐in‐water emulsions, and the production of fluorinated porous polymers and particles by polymerizing the oil phase. These fluorinated porous polymers show excellent thermal stability and, due to the hydrophobicity and porous structure, applications in the field of oil/water separation can be achieved.

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Synthesis, characterization, hydrolytic degradation, mathematical modeling and antibacterial activity of poly[bis((methoxyethoxy)ethoxy)phosphazene] (MEEP)

Cited by 6 publications

References 40 publications

γ-Polyglutamic Acid Production, Biocontrol, and Stress Tolerance: Multifunction of Bacillus subtilis A-5 and the Complete Genome Analysis

γ-Polyglutamic Acid Production, Biocontrol, and Stress Tolerance: Multifunction of Bacillus subtilis A-5 and the Complete Genome Analysis

Recent Developments in Antimicrobial and Antiviral Agents Based on Natural/Synthetic Polymers and Dendrimers: Design and Therapeutic Applications

Amphiphilic Polyphosphazene for Fluorocarbon Emulsion Stabilization

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