Superhydrophobic leached carbon Black/Poly(vinyl) alcohol aerogel for selective removal of oils and organic compounds from water

“…These results were obtained from Tanpichai et al ( 2019) research, where cellulose nanofibrils as fillers increased the composite thickness and reduced its porosity 30 . The PVA has a biocompatible ability to form films, which can be used as a composite binder to minimize pores and increase composite density 11 .…”

Section: Physical and Mechanical Propertiesmentioning

confidence: 99%

“…Furthermore, BC/PVA composites, created by combining BC with PVA, have been synthesized and found to have small molecular permeability, low interfacial tension, and the ability to release antibiotics in a controlled manner 10 . PVA also enhances the adhesion of BC and improves the interaction between the matrix and filler, making the filler distribution in the polymer matrix homogeneous and strengthening the mechanical effect of inhibiting bacterial growth 11,12 . However, PVA has weak mechanical properties 13 .…”

Section: Introductionmentioning

confidence: 99%

Modified Bacterial Cellulose-Based Composite Profile for Drug Release of Tetracycline Hydrochloride

Cahyani,

Yuanita,

Dharmayani

et al. 2024

Valensi

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Bacterial cellulose (BC) is a biodegradable natural polymer with high mechanical strength and non-toxicity. This biopolymer is widely used as a candidate in biomedical fields, such as drug delivery, wound healing, and filtration systems. However, BC lacks antibacterial activity which limits its use in biomedical applications. So, modification of BC-based composite is required. This study aims to examine the effects of modifying BC-based composites with fillers such as graphite (G) and polyvinyl alcohol (PVA) on the release of tetracycline hydrochloride (TCH) drugs. Adding fillers to BC can alter its physical and mechanical properties, reducing its porosity and swelling rate in acidic and alkaline mediums. The drug release of TCH from modified BC-based composites follows the Korsmeyer-Peppas and Hixson-Crowell kinetics models. Adding filler and TCH antibiotic to the composite enhances its antibacterial activity against Staphylococcus aureus with a significant inhibition zone. The results of the inhibition zone show that composites have the potential to be applied in biomedical fields, especially in transdermal patches.

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“…Here, the MTS-modified RC films are referred to as MTS/RC-10, MTS/RC-30, and MTS/RC-60, respectively. Finally, the RC/MTS films were subsequently dried in a fume hood for 2 h to remove the unreacted silane as well as the by-product, hydrochloric acid, before use [40][41][42].…”

Section: Preparation Of the Hydrophobic Mts-modified Rc Filmsmentioning

confidence: 99%

Hydrophobic, Sustainable, High-Barrier Regenerated Cellulose Film via a Simple One-Step Silylation Reaction

et al. 2023

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With the increasing importance of environmental protection, high-performance biopolymer films have received considerable attention as effective alternatives to petroleum-based polymer films. In this study, we developed hydrophobic regenerated cellulose (RC) films with good barrier properties through a simple gas–solid reaction via the chemical vapor deposition of alkyltrichlorosilane. RC films were employed to construct a biodegradable, free-standing substrate matrix, and methyltrichlorosilane (MTS) was used as a hydrophobic coating material to control the wettability and improve the barrier properties of the final films. MTS readily coupled with hydroxyl groups on the RC surface through a condensation reaction. We demonstrated that the MTS-modified RC (MTS/RC) films were optically transparent, mechanically strong, and hydrophobic. In particular, the obtained MTS/RC films exhibited a low oxygen transmission rate of 3 cm3/m2 per day and a low water vapor transmission rate of 41 g/m2 per day, which are superior to those of other hydrophobic biopolymer films.

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Superhydrophobic leached carbon Black/Poly(vinyl) alcohol aerogel for selective removal of oils and organic compounds from water

Cited by 18 publications

References 58 publications

Preparation of two kinds of membranes with reverse wettability from waste masks for continuous oil/water separation

Preparation of two kinds of membranes with reverse wettability from waste masks for continuous oil/water separation

Modified Bacterial Cellulose-Based Composite Profile for Drug Release of Tetracycline Hydrochloride

Hydrophobic, Sustainable, High-Barrier Regenerated Cellulose Film via a Simple One-Step Silylation Reaction

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