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Journal of Polymers and the Environment

Journal of Polymers and the Environment

IF: 4.7
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Antimicrobial Activity of Polyhexamethylene Guanidine Derivatives Introduced into Polycaprolactone

Published:28 February 2017 DOI: 10.1007/s10924-017-0974-9
Maria Swiontek Brzezinska, Maciej Walczak, Urszula Jankiewicz, Marcela Pejchalová

Abstract

The research was aimed at determining the abundance of biofilm formation by Escherichia coli and Staphylococcus aureus on the surface of polycaprolactone (PCL) with polyhexamethylene guanidine (PHMG) derivatives and effect of the derivatives on extracellular hydrolytic enzymes and intracellular dehydrogenases. Biofilm abundance was determined by spectrophotometry, using crystal violet staining. Hydrolytic enzymes after contact with the film were determined with the use of non-specific substrate—fluorscein diacetate. The effect of PHMG derivatives on dehydrogenases activity was assessed using the test, where triphenyltetrazolium chloride (TTC) is reduced to triphenylformazan (TF). The PCL containing PHMG granular polyethylene wax and salt of sulfanilic acid (0.6–1% wt.) strongest inhibited biofilm formation. PHMG derivatives introduced into PCL were found to slightly affect hydrolases activity in both E. coli and S. aureus at a concentration of 0.2 and 0.6%. It was also found that dehydrogenases activity was inhibited by PCL films containing PHMG derivatives. PCL containing 1% of PHMG sulfanilate strongest inhibited hydrolases activity, whereas PCL modified with 1% of PHMG granular polyethylene wax showed the highest inhibitory effect on the activity of both enzymes. W-PCL and A-PCL composites (at concentration of 0.6%) have optimal combination of antibiofilm activity and biodegradability.

Substances (8)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Sulfanilic acid 121-57-3 C6H7NO3S 635 suppliers $13.00-$1380.00
2,3,5-Triphenyltetrazolium chloride 298-96-4 C19H15ClN4 557 suppliers $10.00-$1993.60
Paraffin wax 8002-74-2 C21H27NO3 350 suppliers $50.00-$1080.00
Polycaprolactone 24980-41-4 C6H10O2 249 suppliers $37.68-$564.00
Triphenylformazan 531-52-2 C19H16N4 153 suppliers $24.64-$2744.00
Polyhexamethyleneguanidine phosphate 89697-78-9 C21H45N9X2.3H3O4P 56 suppliers Inquiry
2'',7''-DICHLORODIHYDROFLUORESCEIN DIACETATE C24H16Cl2O7 25 suppliers Inquiry
Polyhexamethylene guanidine 31961-54-3 C21H45N9X2 7 suppliers Inquiry

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