Riti Mann
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View article: Molecular evolution of silver nanoparticle resistance in a bacterial pathogen and a unique adaptation response to ionic silver
Molecular evolution of silver nanoparticle resistance in a bacterial pathogen and a unique adaptation response to ionic silver Open
This research explores the adaptive defense mechanisms of a nanosilver-resistant pathogen (NAg R ) to protect and fight off the complex antimicrobial targeting of silver nanoparticles. The Gram-negative bacterium Acinetobacter baumannii up…
View article: Hydroxyl Radical Generating Monovalent Copper Particles for Antimicrobial Application
Hydroxyl Radical Generating Monovalent Copper Particles for Antimicrobial Application Open
The antimicrobial properties of copper are well-known but maintaining a low oxidation state of Cu in particles is difficult. Herein, antimicrobial CuxP particles were synthesized through phosphorization of Cu(OH)2, to lock copper in its mo…
View article: Development of Nanoparticle Adaptation Phenomena in Acinetobacter baumannii: Physiological Change and Defense Response
Development of Nanoparticle Adaptation Phenomena in Acinetobacter baumannii: Physiological Change and Defense Response Open
Several recent studies have reported on the development of bacterial resistance to broad-spectrum antimicrobial silver nanoparticles (nanosilver; NAg). NAg is currently one of the most important alternative antimicrobial agents.
View article: Variants of Tn <i>6924</i> , a Novel Tn <i>7</i> Family Transposon Carrying the <i>bla</i> <sub>NDM</sub> Metallo-β-Lactamase and 14 Copies of the <i>aphA6</i> Amikacin Resistance Genes Found in Acinetobacter baumannii
Variants of Tn <i>6924</i> , a Novel Tn <i>7</i> Family Transposon Carrying the <i>bla</i> <sub>NDM</sub> Metallo-β-Lactamase and 14 Copies of the <i>aphA6</i> Amikacin Resistance Genes Found in Acinetobacter baumannii Open
To date, efforts to study the resistance mechanisms of carbapenem-resistant Acinetobacter baumannii have been largely focused on the two major globally distributed clones (GC1 and GC2). ST85 is an emerging sequence type, and unlike other c…
View article: The impact of silver nanoparticles on microbial communities and antibiotic resistance determinants in the environment
The impact of silver nanoparticles on microbial communities and antibiotic resistance determinants in the environment Open
Nanosilver (NAg) is currently one of the major alternative antimicrobials to control microorganisms. With its broad-spectrum efficacy and lucrative commercial values, NAg has been used in medical devices and increasingly, in consumer produ…
View article: Cl415, a carbapenem-resistant <i>Acinetobacter baumannii</i> isolate containing four AbaR4 and a new variant of AbGRI2, represents a novel global clone 2 strain
Cl415, a carbapenem-resistant <i>Acinetobacter baumannii</i> isolate containing four AbaR4 and a new variant of AbGRI2, represents a novel global clone 2 strain Open
Objectives To determine the genetic context of genes conferring antibiotic resistance on the carbapenem-resistant Acinetobacter baumannii Cl415, recovered in 2017 at El Youssef Hospital Centre in Akkar Governorate, North Lebanon. Methods A…
View article: Antibacterial Activity of Reduced Graphene Oxide
Antibacterial Activity of Reduced Graphene Oxide Open
The increasing biological use of graphene-based materials has prompted research inquiries on their effects on microorganisms. The work herein reported different types of microbiological activity of reduced graphene oxide (RGO). At relative…
View article: Emerging Concern for Silver Nanoparticle Resistance in Acinetobacter baumannii and Other Bacteria
Emerging Concern for Silver Nanoparticle Resistance in Acinetobacter baumannii and Other Bacteria Open
The misuse of antibiotics combined with a lack of newly developed ones is the main contributors to the current antibiotic resistance crisis. There is a dire need for new and alternative antibacterial options and nanotechnology could be a s…
View article: We Are One: Multispecies Metabolism of a Biofilm Consortium and Their Treatment Strategies
We Are One: Multispecies Metabolism of a Biofilm Consortium and Their Treatment Strategies Open
The ecological and medical significance of bacterial biofilms have been well recognized. Biofilms are harder to control than their planktonic free-living counterparts and quite recently, the focus of the study has shifted to the multispeci…
View article: The ParB homologs, Spo0J and Noc, together prevent premature midcell Z ring assembly when the early stages of replication are blocked in <i>Bacillus subtilis</i>
The ParB homologs, Spo0J and Noc, together prevent premature midcell Z ring assembly when the early stages of replication are blocked in <i>Bacillus subtilis</i> Open
Summary Precise cell division in coordination with DNA replication and segregation is of utmost importance for all organisms. The earliest stage of cell division is the assembly of a division protein FtsZ into a ring, known as the Z ring, …
View article: Oxygen-Vacancy Engineering of Cerium-Oxide Nanoparticles for Antioxidant Activity
Oxygen-Vacancy Engineering of Cerium-Oxide Nanoparticles for Antioxidant Activity Open
To address an important challenge in the engineering of antioxidant nanoparticles, the present work devised a surface-to-bulk migration of oxygen vacancies in the oxygen radical-scavenging cerium-oxide nanoparticles. The study highlights t…
View article: A Simple and Cost-Effective Freeze-Thaw Based Method for Plasmodium DNA Extraction from Dried Blood Spot
A Simple and Cost-Effective Freeze-Thaw Based Method for Plasmodium DNA Extraction from Dried Blood Spot Open
Background: Available DNA isolation methods for Plasmodium involve numerous processing steps, adding to the cost and conferring risk of contamination. Here we devise a simple and cost-effective method for direct extraction of Plasmodium DN…
View article: We Are What We Eat: True for Bacteria Too
We Are What We Eat: True for Bacteria Too Open
Bacteria are present everywhere—all around and within us. Are you scared of them? Do not be, because most bacteria are actually good for us. Only a small number of them can occasionally cause infections, making us sick. Bacteria cause infe…
View article: Metabolic Adaptations of Uropathogenic E. coli in the Urinary Tract
Metabolic Adaptations of Uropathogenic E. coli in the Urinary Tract Open
Escherichia coli ordinarily resides in the lower gastrointestinal tract in humans, but some strains, known as Uropathogenic E. coli (UPEC), are also adapted to the relatively harsh environment of the urinary tract. Infections of the urine,…