1
|
Ma Y, Zohaib Aslam M, Wu M, Nitin N, Sun G. Strategies and perspectives of developing anti-biofilm materials for improved food safety. Food Res Int 2022; 159:111543. [DOI: 10.1016/j.foodres.2022.111543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/04/2022] [Accepted: 06/18/2022] [Indexed: 11/04/2022]
|
2
|
Cloning vectors for gene delivery, integration and expression in Campylobacter jejuni. Biotechniques 2022; 72:255-262. [PMID: 35416085 DOI: 10.2144/btn-2021-0096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Campylobacter genetics research is negatively impacted by a shortage of molecular tools for expressing DNA elements. A previous technique coupled an antibiotic resistance gene and its promoter to a gene of interest, inserting this expression unit into a conserved chromosomal location. Here the authors describe two new plasmids for construction and gene integration utilizing aspects of the previous type of expression unit. pBlueKan+cysMPro allows for the assembly of amplified DNA targets behind a kanamycin resistance marker and a constitutively transcribed cysM promoter. Transfer of the transcription unit to plasmid pCJR01 adds flanking regions of Campylobacter rRNA homology for recombination into conserved rRNA regions. System utility was demonstrated by restoring function of a flaAB deletion (RM3194ΔflaAB::tet) with a flaA gene or flaA/flaB combination.
Collapse
|
3
|
Pandey RP, Kallem P, Rasheed PA, Mahmoud KA, Banat F, Lau WJ, Hasan SW. Enhanced water flux and bacterial resistance in cellulose acetate membranes with quaternary ammoniumpropylated polysilsesquioxane. CHEMOSPHERE 2022; 289:133144. [PMID: 34863730 DOI: 10.1016/j.chemosphere.2021.133144] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/31/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
An enhanced water flux and anti-fouling nanocomposite ultrafiltration membrane based on quaternary ammoniumpropylated polysilsesquioxane (QAPS)/cellulose acetate (QAPS@CA) was fabricated by in situ sol-gel processing via phase inversion followed by quaternization with methyl iodide (CH3I). Membrane characterizations were performed based on the contact angle, FTIR, SEM, and TGA properties. Membrane separation performance was assessed in terms of pure water flux, rejection, and fouling resistance. The 7%QAPS@CA nanocomposite membrane showed an increased wettability (46.6° water contact angle), water uptake (113%) and a high pure water permeability of ∼370 L m-2 h-1 bar-1. Furthermore, the 7%QAPS@CA nanocomposite membrane exhibited excellent bactericidal properties (∼97.5% growth inhibition) against Escherichia coli (E. coli) compared to the bare CA membrane (0% growth inhibition). The 7%QAPS@CA nanocomposite membrane can be recommended for water treatment and biomedical applications.
Collapse
Affiliation(s)
- Ravi P Pandey
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Parashuram Kallem
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - P Abdul Rasheed
- Department of Biomedical Engineering, Bannari Amman Institute of Technology, Sathyamangalam, 638401, Tamilnadu, India; Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar
| | - Khaled A Mahmoud
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar
| | - Fawzi Banat
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Shadi W Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| |
Collapse
|
4
|
Morandini A, Leonetti B, Riello P, Sole R, Gatto V, Caligiuri I, Rizzolio F, Beghetto V. Synthesis and Antimicrobial Evaluation of Bis-morpholine Triazine Quaternary Ammonium Salts. ChemMedChem 2021; 16:3172-3176. [PMID: 34288499 PMCID: PMC8596621 DOI: 10.1002/cmdc.202100409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/18/2021] [Indexed: 11/07/2022]
Abstract
Efficient, environmentally and economically sustainable, and nontoxic antibacterial products are of global relevance in the fight against microorganism contamination. In this work, an easy and straightforward method for the synthesis of bis-morpholino triazine quaternary ammonium salts (bis-mTQAS) is reported, starting from 2,4,6-trichloro-1,3,5-triazine or 2,4-dichloro-6-methoxy-1,3,5-triazine and various N-alkylmorpholines. Bis-mTQAS were tested as antimicrobials against Gram-negative and Gram-positive bacterial strains. The best-performing bis-mTQAS were found to achieve total disinfection against Staphylococcus aureus ATCC 25923 and Escherichia coli ATCC 25922 at 50 and 400 μg/mL, respectively. Distinctively, bis-mTQAS with the highest antimicrobial efficiency had lowest cytotoxicity.
Collapse
Affiliation(s)
- Andrea Morandini
- Dipartimento di Scienze Molecolari e NanosistemiUniversità Ca' Foscari di VeneziaVia Torino 15530172Venezia MestreItaly
| | - Benedetta Leonetti
- Brenta S.r.l. – Nine trees groupViale Milano 2636075Montecchio MaggioreVicenzaItaly
| | - Pietro Riello
- Dipartimento di Scienze Molecolari e NanosistemiUniversità Ca' Foscari di VeneziaVia Torino 15530172Venezia MestreItaly
- European Centre for Living Technology (ECLT) Ca' BottacinDorsoduro 391130123VeniceItaly
| | - Roberto Sole
- Dipartimento di Scienze Molecolari e NanosistemiUniversità Ca' Foscari di VeneziaVia Torino 15530172Venezia MestreItaly
- CIRCCVia C. Ulpiani 2770126BariItaly
| | - Vanessa Gatto
- Dipartimento di Scienze Molecolari e NanosistemiUniversità Ca' Foscari di VeneziaVia Torino 15530172Venezia MestreItaly
- Crossing S.r.l.Viale della Repubblica 193/b31100TrevisoItaly
| | - Isabella Caligiuri
- Pathology UnitCentro di Riferimento Oncologico (CRO) IRCCSVia F. Gallini 233081AvianoItaly
| | - Flavio Rizzolio
- Dipartimento di Scienze Molecolari e NanosistemiUniversità Ca' Foscari di VeneziaVia Torino 15530172Venezia MestreItaly
- Pathology UnitCentro di Riferimento Oncologico (CRO) IRCCSVia F. Gallini 233081AvianoItaly
| | - Valentina Beghetto
- Dipartimento di Scienze Molecolari e NanosistemiUniversità Ca' Foscari di VeneziaVia Torino 15530172Venezia MestreItaly
- Crossing S.r.l.Viale della Repubblica 193/b31100TrevisoItaly
| |
Collapse
|
5
|
Morandini A, Spadati E, Leonetti B, Sole R, Gatto V, Rizzolio F, Beghetto V. Sustainable triazine-derived quaternary ammonium salts as antimicrobial agents. RSC Adv 2021; 11:28092-28096. [PMID: 35480717 PMCID: PMC9038131 DOI: 10.1039/d1ra03455c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 08/15/2021] [Indexed: 12/23/2022] Open
Abstract
The first examples of highly efficient antimicrobial triazine-derived bis imidazolium quaternary ammonium salts (TQAS) are reported. TQAS have been prepared with an easy, atom efficient, economically sustainable strategy and tested as antimicrobial agents, reaching MIC values below 10 mg L-1. Distinctively, TQAS have low MIC and low cytotoxicity.
Collapse
Affiliation(s)
- Andrea Morandini
- Università Ca' Foscari di Venezia Via Torino 155 Venezia Mestre 30172 Italy
| | - Emanuele Spadati
- Università Ca' Foscari di Venezia Via Torino 155 Venezia Mestre 30172 Italy
| | - Benedetta Leonetti
- Brenta S.r.l. - Nine Trees Group. Viale Milano, 26 36075 Montecchio Maggiore Vicenza Italy
| | - Roberto Sole
- Università Ca' Foscari di Venezia Via Torino 155 Venezia Mestre 30172 Italy .,Consorzio Interuniversitario per le Reattività Chimiche e Catalisi (CIRCC) Via C. Ulpiani 27 70126 Bari Italy
| | - Vanessa Gatto
- Crossing S.r.l. Viale della Repubblica 193/b Treviso 31100 Italy
| | - Flavio Rizzolio
- Università Ca' Foscari di Venezia Via Torino 155 Venezia Mestre 30172 Italy
| | - Valentina Beghetto
- Università Ca' Foscari di Venezia Via Torino 155 Venezia Mestre 30172 Italy .,Crossing S.r.l. Viale della Repubblica 193/b Treviso 31100 Italy
| |
Collapse
|
6
|
Pashirova TN, Sapunova AS, Lukashenko SS, Burilova EA, Lubina AP, Shaihutdinova ZM, Gerasimova TP, Kovalenko VI, Voloshina AD, Souto EB, Zakharova LY. Synthesis, structure-activity relationship and biological evaluation of tetracationic gemini Dabco-surfactants for transdermal liposomal formulations. Int J Pharm 2019; 575:118953. [PMID: 31843548 DOI: 10.1016/j.ijpharm.2019.118953] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/15/2019] [Accepted: 12/11/2019] [Indexed: 01/08/2023]
Abstract
In this study, we report the relationship between structure, self-assembly behavior and antimicrobial activity of multicationic gemini surfactants and their successful use as stabilizers of a new liposomal formulation for transdermal drug delivery. New surfactants containing natural moiety 1,4-diazabicyclo[2.2.2]octane with four charges and two hydrophobic chains (n-Dabco-s-Dabco-n, where s = 2, 6, 12 and n = 12, 14, 16, 18) were synthesized. A linear dependence of the CMC decrease, with the increase of the number of carbon atoms in alkyl groups (slope 0.23) was shown. The aggregation numbers of n-Dabco-2-Dabco-n are smaller than 30 and they decrease with increasing alkyl chain length. This is in compliance with the larger surface area per n-Dabco-2-Dabco-n molecule. New liposomal formulations loading Rhodamine B phosphatidylcholine (with mean size about 100 nm and increased zeta potential from -7 ± 2 mV to +55 ± 2 mV) have been successfully stabilized by n-Dabco-s-Dabco-n surfactants. These formulations were designed to improve the bioavailability and skin permeation of loaded compound. The antibacterial activity of Dabco-surfactants was shown to be strongly affected by their structure (alkyl chain length and number of charged nitrogen). 12-Dabco-2-Dabco-12 was the most active (MIC = 0.48, 0.98 and 15.6 µg/mL against S. aureus, B. cereus and E. coli, respectively) without hemolytic activity at 3.1 µg/mL concentration. PC/14-Dabco-2-Dabco-14-liposomes were shown to be the best formulation, with the highest antibacterial activity against Sa (MIC = 7.8 μg‧mL-1) and lowest cytotoxicity (IC50 > 125). The modification of liposomes by Dabco-surfactants stabilizes the membrane of the vesicles, preventing the release of rhodamine B and impairing the penetration of the dye across Strat-M® membrane. Cellular uptake of rhodamine B-loaded PC/12-Dabco-2-Dabco-12-liposomes was also reported. This is the first example of cationic mixed liposomes containing Dabco-surfactants of potential interest for transdermal drug delivery.
Collapse
Affiliation(s)
- T N Pashirova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia.
| | - A S Sapunova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - S S Lukashenko
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - E A Burilova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - A P Lubina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - Z M Shaihutdinova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - T P Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - V I Kovalenko
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - A D Voloshina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| | - E B Souto
- Department of Pharmaceutical Terchnology, Faculty of Pharmacy, University of Coimbra (FFUC), Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - L Ya Zakharova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of Russian Academy of Sciences, Arbuzov St., 8, Kazan 420088, Russia
| |
Collapse
|
7
|
Cetylpyridinium chloride produces increased zeta-potential on Salmonella Typhimurium cells, a mechanism of the pathogen's inactivation. NPJ Sci Food 2019; 3:21. [PMID: 31633036 PMCID: PMC6795798 DOI: 10.1038/s41538-019-0052-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/13/2019] [Indexed: 12/17/2022] Open
Abstract
Cetylpyridinium chloride (CPC) is a quaternary ammonium sanitizer approved for fresh poultry animal carcass sanitization from microbial human pathogens, such as Salmonella enterica. Nonetheless, the interactions of CPC with Salmonella cells, and the mechanism of the sanitizer's neutralization by lecithin remains largely unknown. This study aimed to investigate the interaction of CPC with lecithin and Salmonella Typhimurium to determine the interactions of the sanitizer and neutralizer impacting the bacterium's survival. Application of 0.8% CPC is proposed to produce loss of microbial membrane integrity with loss of electrostatic repulsion between individual cells, resulting in the eventual emulsification of membrane lipids with cytoplasmic contents leakage. Our findings point to a two-phase interaction between CPC and lecithin impacting S. Typhimurium survival. The first consists of electrostatic attraction and charge neutralization between oppositely charged components of pathogen cell and CPC. The second involves formation of aggregates between sanitizer and pathogen, or between sanitizer, pathogen membrane lipids, and lecithin.
Collapse
|