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Small AgNP in the Biopolymer Nanocomposite System.
Int J Mol Sci
December 2020
Department of Physical Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University, 3 Sq. Maria Curie-Sklodowska, 20-031 Lublin, Poland.
In this work, ultra-small and stable silver nanoparticles (AgNP) on chitosan biopolymer (BP/AgP) were prepared by in situ reduction of the diamminesilver(I) complex ([Ag(NH)]) to create a biostatic membrane system. The small AgNP (3 nm) as a stable source of silver ions, their crystal form, and homogeneous distribution in the whole solid membrane were confirmed by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). The X-ray photoelectron spectroscopy (XPS) and Auger analysis were applied to investigate the elemental composition, concentration, and chemical state of surface atoms.
View Article and Find Full Text PDFPreparation of Nanocomposite Alginate Fibers Modified with Titanium Dioxide and Zinc Oxide.
Polymers (Basel)
May 2020
Institute of Textile Materials and Polymer Composites, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland.
Active dressings based on natural polymers are becoming increasingly popular on the market. One of such polymers is alginate, which is characterized by biodegradability, resorbability, has no carcinogenic properties, does not have allergenic or hemostatic properties, and has a confirmed lack of toxicity. However, this polymer does not show biocidal and biostatic properties, therefore the purpose of this research was to select the appropriate conditions for the production of calcium alginate fibers modified with nano titanium dioxide and nano zinc oxide.
View Article and Find Full Text PDFThe Influence of Graphene Addition on the Properties of Composite rGO/PAN Membranes and Their Potential Application for Water Disinfection.
Membranes (Basel)
March 2020
Institute of Textile Engineering and Polymer Materials, Faculty of Materials, Civil and Environmental Engineering, University of Bielsko-Biala, Willowa 2, 43-309 Bielsko-Biala, Poland.
The paper presents a method of obtaining composite polyacrylonitrile-based (PAN) membranes with the addition of reduced graphene oxide (rGO). The membranes were obtained using phase inversion method from a homogeneous rGO dispersion in a solution of PAN dissolved in N, N-dimethylformamide (DMF). The impact of the amount of rGO addition to the PAN matrix on the physicochemical, structural, transport, and separation properties and on fouling resistance was studied.
View Article and Find Full Text PDFIntercalation compounds of a smectite clay with an ammonium salt biocide and their possible use for conservation of cultural heritage.
Heliyon
December 2019
Dipartimento di Chimica e Biologia "A. Zambelli" and INSTM Research Unit, Università degli Studi di Salerno, Fisciano (SA), Italy.
Ordered intercalation compounds between a smectite mineral clay (montmorillonite, Mt) and the ammonium salt mainly used for stone material disinfection procedures (i.e. N-Alkyl-N-benzyl-N,N-dimethylammonium chloride, shortly known as benzalkonium chloride, BAC), leading to an increase of interlayer distance from 1.
View Article and Find Full Text PDFExperience in Using Fetal Membranes: The Present and New Perspectives.
Transplant Proc
September 2018
Dr Stanisław Sakiel Burn Treatment Centre in Siemianowice Śląskie, Siemianowice Śląskie, Poland; Department of Health Science, University of Technology and Humanities in Bielsko-Biała, Bielsko-Biała, Poland.
Introduction: The placenta is an accessible source of tissues for transplantation. Placental transplants have been used in wound treatment because of the basic function of the placenta and its nutritious properties and structure.
Patients And Methods: The aim of this work is to present the clinical usage of fetal membranes, including human amnion, on the basis of the burn treatment center's experience.
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