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21 pages, 3976 KiB

Open AccessArticle

Bacterial Cellulose Membrane Containing Epilobium angustifolium L. Extract as a Promising Material for the Topical Delivery of Antioxidants to the Skin

by Anna Nowak, Paula Ossowicz-Rupniewska, Rafał Rakoczy, Maciej Konopacki, Magdalena Perużyńska, Marek Droździk, Edyta Makuch, Wiktoria Duchnik, Łukasz Kucharski, Karolina Wenelska and Adam Klimowicz

Int. J. Mol. Sci. 2021, 22(12), 6269; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22126269 - 10 Jun 2021

Cited by 19 | Viewed by 3110

Abstract

Bacterial cellulose membranes (BCs) are becoming useful as a drug delivery system to the skin. However, there are very few reports on their application of plant substances to the skin. Komagataeibacter xylinus was used for the production of bacterial cellulose (BC). The BC [...] Read more.

Bacterial cellulose membranes (BCs) are becoming useful as a drug delivery system to the skin. However, there are very few reports on their application of plant substances to the skin. Komagataeibacter xylinus was used for the production of bacterial cellulose (BC). The BC containing 5% and 10% ethanolic extract of Epilobium angustifolium (FEE) (BC-5%FEE and BC-10%FEE, respectively) were prepared. Their mechanical, structural, and antioxidant properties, as well as phenolic acid content, were evaluated. The bioavailability of BC-FESs using mouse L929 fibroblasts as model cells was tested. Moreover, In Vitro penetration through the pigskin of the selected phenolic acids contained in FEE and their accumulation in the skin after topical application of BC-FEEs was examined. The BC-FEEs were characterized by antioxidant activity. The BC-5% FEE showed relatively low toxicity to healthy mouse fibroblasts. Gallic acid (GA), chlorogenic acid (ChA), 3,4-dihydroxybenzoic acid (3,4-DHB), 4-hydroxybenzoic acid (4-HB), 3-hydroxybenzoic acid (3-HB), and caffeic acid (CA) found in FEE were also identified in the membranes. After topical application of the membranes to the pigskin penetration of some phenolic acid and other antioxidants through the skin as well as their accumulation in the skin was observed. The bacterial cellulose membrane loaded by plant extract may be an interesting solution for topical antioxidant delivery to the skin. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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18 pages, 4781 KiB

Open AccessArticle

Transdermal Delivery Systems for Ibuprofen and Ibuprofen Modified with Amino Acids Alkyl Esters Based on Bacterial Cellulose

by Paula Ossowicz-Rupniewska, Rafał Rakoczy, Anna Nowak, Maciej Konopacki, Joanna Klebeko, Ewelina Świątek, Ewa Janus, Wiktoria Duchnik, Karolina Wenelska, Łukasz Kucharski and Adam Klimowicz

Int. J. Mol. Sci. 2021, 22(12), 6252; https://doi.org/10.3390/ijms22126252 - 10 Jun 2021

Cited by 24 | Viewed by 2580

Abstract

The potential of bacterial cellulose as a carrier for the transport of ibuprofen (a typical example of non-steroidal anti-inflammatory drugs) through the skin was investigated. Ibuprofen and its amino acid ester salts-loaded BC membranes were prepared through a simple methodology and characterized in [...] Read more.

The potential of bacterial cellulose as a carrier for the transport of ibuprofen (a typical example of non-steroidal anti-inflammatory drugs) through the skin was investigated. Ibuprofen and its amino acid ester salts-loaded BC membranes were prepared through a simple methodology and characterized in terms of structure and morphology. Two salts of amino acid isopropyl esters were used in the research, namely L-valine isopropyl ester ibuprofenate ([ValOiPr][IBU]) and L-leucine isopropyl ester ibuprofenate ([LeuOiPr][IBU]). [LeuOiPr][IBU] is a new compound; therefore, it has been fully characterized and its identity confirmed. For all membranes obtained the surface morphology, tensile mechanical properties, active compound dissolution assays, and permeation and skin accumulation studies of API (active pharmaceutical ingredient) were determined. The obtained membranes were very homogeneous. In vitro diffusion studies with Franz cells were conducted using pig epidermal membranes, and showed that the incorporation of ibuprofen in BC membranes provided lower permeation rates to those obtained with amino acids ester salts of ibuprofen. This release profile together with the ease of application and the simple preparation and assembly of the drug-loaded membranes indicates the enormous potentialities of using BC membranes for transdermal application of ibuprofen in the form of amino acid ester salts. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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17 pages, 3387 KiB

Open AccessArticle

Potential of Bacterial Cellulose Chemisorbed with Anti-Metabolites, 3-Bromopyruvate or Sertraline, to Fight against Helicobacter pylori Lawn Biofilm

by Paweł Krzyżek, Grażyna Gościniak, Karol Fijałkowski, Paweł Migdał, Mariusz Dziadas, Artur Owczarek, Joanna Czajkowska, Olga Aniołek and Adam Junka

Int. J. Mol. Sci. 2020, 21(24), 9507; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21249507 - 14 Dec 2020

Cited by 14 | Viewed by 2631

Abstract

Helicobacter pylori is a bacterium known mainly of its ability to cause persistent inflammations of the human stomach, resulting in peptic ulcer diseases and gastric cancers. Continuous exposure of this bacterium to antibiotics has resulted in high detection of multidrug-resistant strains and difficulties [...] Read more.

Helicobacter pylori is a bacterium known mainly of its ability to cause persistent inflammations of the human stomach, resulting in peptic ulcer diseases and gastric cancers. Continuous exposure of this bacterium to antibiotics has resulted in high detection of multidrug-resistant strains and difficulties in obtaining a therapeutic effect. The purpose of the present study was to determine the usability of bacterial cellulose (BC) chemisorbed with 3-bromopyruvate (3-BP) or sertraline (SER) to act against lawn H. pylori biofilms. The characterization of BC carriers was made using a N2 adsorption/desorption analysis, tensile strength test, and scanning electron microscopy (SEM) observations. Determination of an antimicrobial activity was performed using a modified disk-diffusion method and a self-designed method of testing antibacterial activity against biofilm microbial forms. In addition, bacterial morphology was checked by SEM. It was found that BC disks were characterized by a high cross-linking and shear/stretch resistance. Growth inhibition zones for BC disks chemisorbed with 2 mg of SER or 3-BP were equal to 26.5–27.5 mm and 27–30 mm, respectively. The viability of lawn biofilm H. pylori cells after a 4-h incubation with 2 mg SER or 3-BP chemisorbed on BC disks was ≥4 log lower, suggesting their antibacterial effect. SEM observations showed a number of morphostructural changes in H. pylori cells exposed to these substances. Concluding, SER and 3-BP chemisorbed on BC carriers presented a promising antibacterial activity against biofilm H. pylori cells in in vitro conditions. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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Review

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26 pages, 41510 KiB

Open AccessReview

Surface Modification of Bacterial Cellulose for Biomedical Applications

by Teresa Aditya, Jean Paul Allain, Camilo Jaramillo and Andrea Mesa Restrepo

Int. J. Mol. Sci. 2022, 23(2), 610; https://doi.org/10.3390/ijms23020610 - 06 Jan 2022

Cited by 43 | Viewed by 5901

Abstract

Bacterial cellulose is a naturally occurring polysaccharide with numerous biomedical applications that range from drug delivery platforms to tissue engineering strategies. BC possesses remarkable biocompatibility, microstructure, and mechanical properties that resemble native human tissues, making it suitable for the replacement of damaged or [...] Read more.

Bacterial cellulose is a naturally occurring polysaccharide with numerous biomedical applications that range from drug delivery platforms to tissue engineering strategies. BC possesses remarkable biocompatibility, microstructure, and mechanical properties that resemble native human tissues, making it suitable for the replacement of damaged or injured tissues. In this review, we will discuss the structure and mechanical properties of the BC and summarize the techniques used to characterize these properties. We will also discuss the functionalization of BC to yield nanocomposites and the surface modification of BC by plasma and irradiation-based methods to fabricate materials with improved functionalities such as bactericidal capabilities. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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18 pages, 1180 KiB

Open AccessReview

Systematic Understanding of Recent Developments in Bacterial Cellulose Biosynthesis at Genetic, Bioprocess and Product Levels

by Gizem Buldum and Athanasios Mantalaris

Int. J. Mol. Sci. 2021, 22(13), 7192; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22137192 - 03 Jul 2021

Cited by 18 | Viewed by 3781

Abstract

Engineering biological processes has become a standard approach to produce various commercially valuable chemicals, therapeutics, and biomaterials. Among these products, bacterial cellulose represents major advances to biomedical and healthcare applications. In comparison to properties of plant cellulose, bacterial cellulose (BC) shows distinctive characteristics [...] Read more.

Engineering biological processes has become a standard approach to produce various commercially valuable chemicals, therapeutics, and biomaterials. Among these products, bacterial cellulose represents major advances to biomedical and healthcare applications. In comparison to properties of plant cellulose, bacterial cellulose (BC) shows distinctive characteristics such as a high purity, high water retention, and biocompatibility. However, low product yield and extensive cultivation times have been the main challenges in the large-scale production of BC. For decades, studies focused on optimization of cellulose production through modification of culturing strategies and conditions. With an increasing demand for BC, researchers are now exploring to improve BC production and functionality at different categories: genetic, bioprocess, and product levels as well as model driven approaches targeting each of these categories. This comprehensive review discusses the progress in BC platforms categorizing the most recent advancements under different research focuses and provides systematic understanding of the progress in BC biosynthesis. The aim of this review is to present the potential of ‘modern genetic engineering tools’ and ‘model-driven approaches’ on improving the yield of BC, altering the properties, and adding new functionality. We also provide insights for the future perspectives and potential approaches to promote BC use in biomedical applications. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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25 pages, 17394 KiB

Open AccessReview

Bacterial Nanocellulose toward Green Cosmetics: Recent Progresses and Challenges

by Tânia Almeida, Armando J. D. Silvestre, Carla Vilela and Carmen S. R. Freire

Int. J. Mol. Sci. 2021, 22(6), 2836; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22062836 - 11 Mar 2021

Cited by 48 | Viewed by 7765

Abstract

In the skin care field, bacterial nanocellulose (BNC), a versatile polysaccharide produced by non-pathogenic acetic acid bacteria, has received increased attention as a promising candidate to replace synthetic polymers (e.g., nylon, polyethylene, polyacrylamides) commonly used in cosmetics. The applicability of BNC in cosmetics [...] Read more.

In the skin care field, bacterial nanocellulose (BNC), a versatile polysaccharide produced by non-pathogenic acetic acid bacteria, has received increased attention as a promising candidate to replace synthetic polymers (e.g., nylon, polyethylene, polyacrylamides) commonly used in cosmetics. The applicability of BNC in cosmetics has been mainly investigated as a carrier of active ingredients or as a structuring agent of cosmetic formulations. However, with the sustainability issues that are underway in the highly innovative cosmetic industry and with the growth prospects for the market of bio-based products, a much more prominent role is envisioned for BNC in this field. Thus, this review provides a comprehensive overview of the most recent (last 5 years) and relevant developments and challenges in the research of BNC applied to cosmetic, aiming at inspiring future research to go beyond in the applicability of this exceptional biotechnological material in such a promising area. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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13 pages, 847 KiB

Open AccessReview

Engineering Bacterial Cellulose by Synthetic Biology

by Amritpal Singh, Kenneth T. Walker, Rodrigo Ledesma-Amaro and Tom Ellis

Int. J. Mol. Sci. 2020, 21(23), 9185; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21239185 - 02 Dec 2020

Cited by 29 | Viewed by 8942

Abstract

Synthetic biology is an advanced form of genetic manipulation that applies the principles of modularity and engineering design to reprogram cells by changing their DNA. Over the last decade, synthetic biology has begun to be applied to bacteria that naturally produce biomaterials, in [...] Read more.

Synthetic biology is an advanced form of genetic manipulation that applies the principles of modularity and engineering design to reprogram cells by changing their DNA. Over the last decade, synthetic biology has begun to be applied to bacteria that naturally produce biomaterials, in order to boost material production, change material properties and to add new functionalities to the resulting material. Recent work has used synthetic biology to engineer several Komagataeibacter strains; bacteria that naturally secrete large amounts of the versatile and promising material bacterial cellulose (BC). In this review, we summarize how genetic engineering, metabolic engineering and now synthetic biology have been used in Komagataeibacter strains to alter BC, improve its production and begin to add new functionalities into this easy-to-grow material. As well as describing the milestone advances, we also look forward to what will come next from engineering bacterial cellulose by synthetic biology. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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17 pages, 908 KiB

Open AccessReview

Bacterial Cellulose—Graphene Based Nanocomposites

by Omar P. Troncoso and Fernando G. Torres

Int. J. Mol. Sci. 2020, 21(18), 6532; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21186532 - 07 Sep 2020

Cited by 28 | Viewed by 4894

Abstract

Bacterial cellulose (BC) and graphene are materials that have attracted the attention of researchers due to their outstanding properties. BC is a nanostructured 3D network of pure and highly crystalline cellulose nanofibres that can act as a host matrix for the incorporation of [...] Read more.

Bacterial cellulose (BC) and graphene are materials that have attracted the attention of researchers due to their outstanding properties. BC is a nanostructured 3D network of pure and highly crystalline cellulose nanofibres that can act as a host matrix for the incorporation of other nano-sized materials. Graphene features high mechanical properties, thermal and electric conductivity and specific surface area. In this paper we review the most recent studies regarding the development of novel BC-graphene nanocomposites that take advantage of the exceptional properties of BC and graphene. The most important applications of these novel BC-graphene nanocomposites include the development of novel electric conductive materials and energy storage devices, the preparation of aerogels and membranes with very high specific area as sorbent materials for the removal of oil and metal ions from water and a variety of biomedical applications, such as tissue engineering and drug delivery. The main properties of these BC-graphene nanocomposites associated with these applications, such as electric conductivity, biocompatibility and specific surface area, are systematically presented together with the processing routes used to fabricate such nanocomposites. Full article

(This article belongs to the Special Issue Bacterial Cellulose: Synthesis, Structure, and Biomedical Applications)

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