Bacterial cellulose-based composites for biomedical and cosmetic applications: Research progress and existing products

Mbituyimana, Bricard; Liu, Li; Ye, Weiliang; Boni, B; Zhang, Kai; Chen, Jiachuan; Thomas, Sabu; Vasilievich, Revin Victor; Shi, Zhijun; Yang, Guang

doi:10.1016/j.carbpol.2021.118565

Cited by 96 publications

(45 citation statements)

References 189 publications

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“…It was assumed that the diffusion coefficient of NaCl in the range of tested solution concentrations was constant (

) and, therefore, the table value

= 1.57 × 10 −9 m 2 s −1 was used for the calculations. For the calculations, the transport parameters of the Nephrophan membranes used as an element of the hemodialyzer were used [ 32 ] for NaCl with the following values:

= 5 × 10 −12 m 3 N −1 s −1 ,

= 0.06,

= 1.43 × 10 −9 mol N −1 s −1 ,

= 0.39, and

= 0.216 [ 16 ]. The values of the

coefficient assume values in the range

.…”

Section: Results Of Calculations and Discussionmentioning

confidence: 99%

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Modelling of the Electrical Membrane Potential for Concentration Polarization Conditions

Batko

Ślęzak-Prochazka

Ślęzak

et al. 2022

Entropy

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Based on Kedem–Katchalsky formalism, the model equation of the membrane potential (∆ψs) generated in a membrane system was derived for the conditions of concentration polarization. In this system, a horizontally oriented electro-neutral biomembrane separates solutions of the same electrolytes at different concentrations. The consequence of concentration polarization is the creation, on both sides of the membrane, of concentration boundary layers. The basic equation of this model includes the unknown ratio of solution concentrations (CiCe) at the membrane/concentration boundary layers. We present the calculation procedure (CiCe) based on novel equations derived in the paper containing the transport parameters of the membrane (Lp, σ, and ω), solutions (ρ, ν), concentration boundary layer thicknesses (δl, δh), concentration Raileigh number (RC), concentration polarization factor (ζs), volume flux (Jv), mechanical pressure difference (∆P), and ratio of known solution concentrations (ChCl). From the resulting equation, ∆ψs was calculated for various combinations of the solution concentration ratio (ChCl), the Rayleigh concentration number (RC), the concentration polarization coefficient (ζs), and the hydrostatic pressure difference (∆P). Calculations were performed for a case where an aqueous NaCl solution with a fixed concentration of 1 mol m−3 (Cl) was on one side of the membrane and on the other side an aqueous NaCl solution with a concentration between 1 and 15 mol m−3 (Ch). It is shown that (∆ψs) depends on the value of one of the factors (i.e., ∆P, ChCl, RC and ζs) at a fixed value of the other three.

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“…It was assumed that the diffusion coefficient of NaCl in the range of tested solution concentrations was constant (

) and, therefore, the table value

= 5 × 10 −12 m 3 N −1 s −1 ,

= 0.06,

= 1.43 × 10 −9 mol N −1 s −1 ,

= 0.39, and

= 0.216 [ 16 ]. The values of the

coefficient assume values in the range

.…”

Section: Results Of Calculations and Discussionmentioning

confidence: 99%

“…Undoubtedly, synthetic membranes used as an active dressing component in the treatment of hard-to-heal wounds, such as extensive burns or venous leg ulcers, are a skin substitute [ 32 ]. In this process, the membrane serves as a barrier that creates an appropriate microenvironment between the wound and the membrane surface.…”

Section: Discussionmentioning

confidence: 99%

Modelling of the Electrical Membrane Potential for Concentration Polarization Conditions

Batko

Ślęzak-Prochazka

Ślęzak

et al. 2022

Entropy

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“…BC composites have a varied number of application, not only in biomedical, but also in cosmetic, food and additive manufacturing. Below are examples of some of the popular use of BC primarily for biomedical application as provided in Table 1 [ 61 , 62 , 77 , 101 , 102 , 103 ].…”

Section: Biomedical Applications Of Functionalized Bc Hydrogelsmentioning

confidence: 99%

“…This biopolymer in conjunction with other polymers like poly (vinyl alcohol), poly (ethylene glycol diacrylate) and poly (ethylene oxide)-b-poly(caprolactone) nanoparticles can be used to control the release of these substances, improving the mechanical properties and flexibility of the membranes. BC can also be used as a green alternative to microplastics in exfoliating solutions or as surfactants in emulsion stabilizations due to its intrinsic rheological and structural properties [ 101 , 154 , 155 ].…”

Section: Biomedical Applications Of Functionalized Bc Hydrogelsmentioning

confidence: 99%

Surface Modification of Bacterial Cellulose for Biomedical Applications

Allain

Jaramillo

Restrepo

2022

IJMS

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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.

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“…BC is used in various fields ranging from traditional technical and food industries to biomedicine. The use of BC as a part of the newest composites using the emerging technologies [ 8 ] is continuously expanding the application range of this magnificent polymer [ 2 , 6 , 7 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Static Culture Combined with Aeration in Biosynthesis of Bacterial Cellulose

et al. 2021

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One of the ways to enhance the yield of bacterial cellulose (BC) is by using dynamic aeration and different-type bioreactors because the microbial producers are strict aerobes. But in this case, the BC quality tends to worsen. Here we have combined static culture with aeration in the biosynthesis of BC by symbiotic Medusomyces gisevii Sa-12 for the first time. A new aeration method by feeding the air onto the growth medium surface is proposed herein. The culture was performed in a Binder-400 climate chamber. The study found that the air feed at a rate of 6.3 L/min allows a 25% increase in the BC yield. Moreover, this aeration mode resulted in BC samples of stable quality. The thermogravimetric and X-ray structural characteristics were retained: the crystallinity index in reflection and transmission geometries were 89% and 92%, respectively, and the allomorph Iα content was 94%. Slight decreases in the degree of polymerization (by 12.0% compared to the control―no aeration) and elastic modulus (by 12.6%) are not critical. Thus, the simple aeration by feeding the air onto the culture medium surface has turned out to be an excellent alternative to dynamic aeration. Usually, when the cultivation conditions, including the aeration ones, are changed, characteristics of the resultant BC are altered either, due to the sensitivity of individual microbial strains. In our case, the stable parameters of BC samples under variable aeration conditions are explained by the concomitant factors: the new efficient aeration method and the highly adaptive microbial producer―symbiotic Medusomyces gisevii Sa-12.

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Bacterial cellulose-based composites for biomedical and cosmetic applications: Research progress and existing products

Cited by 96 publications

References 189 publications

Modelling of the Electrical Membrane Potential for Concentration Polarization Conditions

Modelling of the Electrical Membrane Potential for Concentration Polarization Conditions

Surface Modification of Bacterial Cellulose for Biomedical Applications

Static Culture Combined with Aeration in Biosynthesis of Bacterial Cellulose

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