The effect of polyhexamethylene guanidine hydrochloride on biofilm formation on polylactide and polyhydroxybutyrate composites

2015 ◽  
Vol 98 ◽  
pp. 1-5 ◽  
Author(s):  
Maciej Walczak ◽  
Maria Swiontek Brzezinska ◽  
Agnieszka Richert ◽  
Agnieszka Kalwasińska
Keyword(s):  
Biofilm Formation ◽  
Guanidine Hydrochloride ◽  
Polyhexamethylene Guanidine

scholarly journals Use of Polyguanidine-Derivatives-Based Biocides for Microbial Growth Inhibition and for the Development of a Novel Polyethylene-Based Composite Material Resistant to the Formation of Multispecies Microbial Biofilms

2022 ◽  
Author(s):  
Marina Zhurina ◽  
Andrei Gannesen ◽  
Sergey Martyanov ◽  
Anna Kallistova ◽  
Victor Gerasin ◽  
...  
Keyword(s):  
Biofilm Formation ◽  
Microbial Growth ◽  
Guanidine Hydrochloride ◽  
Tropical Soil ◽  
Biocidal Activity ◽  
Microbial Biofilms ◽  
Diallyldimethylammonium Chloride ◽  
Polyhexamethylene Guanidine ◽  
Microbial Growth Inhibition ◽  
Surrounding Soil

This study aimed to investigate the dependence of the biocidal activity of polyguanidine (co)polymers on their structure during the formation of biofilms by active PE-degrading cultures of model microorganisms. The Bc-2 copolymer of methacryloyl guanidine hydrochloride (MGHC) and diallyldimethylammonium chloride (DADMAC), which suppressed both the formation of biofilms and the growth of planktonic cultures, exhibited the highest activity. When PE was exposed in tropical soil, the composition of the microbial community on the PE surface differed significantly from that of the community in the surrounding soil. In particular, the proportion of Actinobacteria increased from 7% to 29%, while the proportion of Bacteroidetes decreased from 38% to 8%. Keywords: biofilms, polyhexamethylene guanidine salts, dynamics of biofilm formation, antibiofilm effect, composite materials

Influence of mixed aqueous solutions of polyhexamethylene guanidine hydrochloride and OP-10 on vegetable crop seeds

2018 ◽  
Vol 11 (2) ◽  
pp. 164-172
Author(s):  
О.A. Yessimova ◽  
◽  
А.О. Adilbekova ◽  
M.Zh. Kerimkulova ◽  
G.D. Isenova ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Guanidine Hydrochloride ◽  
Vegetable Crop ◽  
Polyhexamethylene Guanidine

scholarly journals INFLUENCE OF POLIGUANIDINE ON THE SELF-ORGANIZATION PROCESS IN CYSTEINE-SILVER SOLUTION

2021 ◽  
pp. 69-79
Author(s):  
Анна Нориковна Адамян ◽  
Алена Константиновна Кучурова ◽  
Александра Ивановна Иванова ◽  
Максим Дмитриевич Малышев ◽  
Виктор Анатольевич Герасин ◽  
...  
Keyword(s):  
Guanidine Hydrochloride ◽  
Self Organization ◽  
Silver Acetate ◽  
High Antimicrobial Activity ◽  
Antibacterial Studies ◽  
Polyhexamethylene Guanidine ◽  
Silver Solution ◽  
Organization Process ◽  
Spatial Grid ◽  
Test Cultures

Выполнены реологические, структурные и антибактериальные исследования гидрогелей, получаемых на основе L-цистеина, ацетата серебра и полигексаметиленгуанидин гидрохлорида (ПГМГ-ГХ). Установлено, что водные растворы на основе L-цистеина и ацетата серебра хорошо смешиваются с водным раствором ПГМГ-ГХ, образуя прозрачные гидрогели. Предложена модель строения пространственной сетки геля. Показана высокая антимикробная активность гидрогеля по отношению к тест-культурам патогенных и условно-патогенных микроорганизмов. Rheological, structural, and antibacterial studies of hydrogels based on L-cysteine, silver acetate, and polyhexamethylene guanidine hydrochloride (PHMG-GC) have been carried out. It was found that aqueous solutions based on L-cysteine and silver acetate mix well with an aqueous solution of PHMG-GC, forming transparent hydrogels. A model of the structure of the spatial grid of the gel is proposed. High antimicrobial activity of the hydrogel was shown in relation to test cultures of pathogenic and opportunistic microorganisms.

SYNTHESIS AND STUDY OF THE ANTIMICROBIAL ACTIVITY OF POLYHEXAMETHYLENE GUANIDINE HYDROCHLORIDE DERIVATIVES

2020 ◽  
pp. 67-69
Author(s):  
S. Stelmakh ◽  
M. Grigor’eva ◽  
N. Garkusheva ◽  
D. Mognonov ◽  
V. Batoev
Keyword(s):  
Antimicrobial Activity ◽  
Nosocomial Infections ◽  
Guanidine Hydrochloride ◽  
Polyhexamethylene Guanidine ◽  
Derivatives Of

N-phenyl- and N-octyl-substituted derivatives of polyhexamethylene guanidine hydrochloride were synthesized and their antimicrobial activity against nosocomial infections was determined.

scholarly journals Antibacterial, chemical and physical properties of sealants with polyhexamethylene guanidine hydrochloride

2019 ◽  
Vol 33 ◽  
Author(s):  
Isadora Martini GARCIA ◽  
Stéfani Becker RODRIGUES ◽  
Vicente Castelo Branco LEITUNE ◽  
Fabrício Mezzomo COLLARES
Keyword(s):  
Physical Properties ◽  
Guanidine Hydrochloride ◽  
Polyhexamethylene Guanidine

Development of non-leaching and eco-friendly polyhexamethylene guanidine hydrochloride based antimicrobial waterborne polyacrylates

2017 ◽  
Vol 46 (6) ◽  
pp. 458-468
Author(s):  
Wei Ding ◽  
Kaimei Peng ◽  
Tao Zou ◽  
Ruonan Wang ◽  
Jinshan Guo ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Antibacterial Activity ◽  
Guanidine Hydrochloride ◽  
Antibacterial Properties ◽  
Vinyl Monomer ◽  
Diffusion Method ◽  
Content Type ◽  
Molecular Weights ◽  
Polyhexamethylene Guanidine ◽  
Antimicrobial Films

Purpose The purpose of this paper is to develop non-leaching and eco-friendly antimicrobial waterborne polyacrylates with excellent antibacterial properties by grafting antibacterial vinyl monomer, glycidyl methacrylate (GMA) modified polyhexamethylene guanidine hydrochloride (PHMG). Design/methodology/approach PHMG of different molecular weights were modified by GMA to synthesize antibacterial vinyl monomer, GMA-modified PHMG (GPHMG). Different content and molecular weights of GPHMG were used to synthesize antimicrobial waterborne polyacrylates through emulsion polymerization. Findings The addition of GPHMG gained by modifying PHMG showed little influence on thermal stability of the films, but decreased the glass transition temperature(Tg). Meanwhile, the tensile strength decreased, while the breaking elongation increased. The antibacterial properties of the antibacterial films with different GPHMG contents were studied, when GPHMG content was around 0.9 Wt.%, antibacterial films showed excellent antibacterial activity (antibacterial rate >= 99.99 per cent). When weight content of GPHMG in the films remained constant, antibacterial property of films increased first and then decreased with the increase of molecular weight of GPHMG. The structural antibacterial polymer film had more perdurable antibacterial activity than the blended one. Research limitations/implications The grafting efficiency of GPHMG to antimicrobial waterborne polyacrylates could be further improved. Practical implications Antimicrobial waterborne polyacrylates with excellent antibacterial properties can be used to antibacterial coating and adhesive. Originality/value The antibacterial properties of films with different molecular weight of GPHMG were studied, and the durability and stability of antibacterial properties between structural antimicrobial films and blended antimicrobial films were also investigated by ring-diffusion method.

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