Tuning the Sensitivity and Dynamic Range of Optical Oxygen Sensing Films by Blending Various Polymer Matrices

Zhang, Kaiheng; Lu, Siyuan; Qu, Zhe; Feng, Xue

doi:10.3390/bios12010005

Cited by 2 publications

(1 citation statement)

References 45 publications

(48 reference statements)

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“…Another way for the tuning of the properties of the polymer matrix is blending of polymers with disparate analyte permeability. For example, the properties of optical oxygen sensors based on polymethyl methacrylate (PMMA), ethyl cellulose (EC), and their blends with different mixing ratios change over a fairly wide range [ 157 ]. Such basic parameters of optical sensors as dynamic range and sensitivity were separately increased and decreased as the EC/PMMA ratio decreased in the blended matrix.…”

Section: Tuning the Properties Of Composites Through The Introduction...mentioning

confidence: 99%

On the Use of Polymer-Based Composites for the Creation of Optical Sensors: A Review

2022

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Polymers are widely used in many areas, but often their individual properties are not sufficient for use in certain applications. One of the solutions is the creation of polymer-based composites and nanocomposites. In such materials, in order to improve their properties, nanoscale particles (at least in one dimension) are dispersed in the polymer matrix. These properties include increased mechanical strength and durability, the ability to create a developed inner surface, adjustable thermal and electrical conductivity, and many others. The materials created can have a wide range of applications, such as biomimetic materials and technologies, smart materials, renewable energy sources, packaging, etc. This article reviews the usage of composites as a matrix for the optical sensors and biosensors. It highlights several methods that have been used to enhance performance and properties by optimizing the filler. It shows the main methods of combining indicator dyes with the material of the sensor matrix. Furthermore, the role of co-fillers or a hybrid filler in a polymer composite system is discussed, revealing the great potential and prospect of such matrixes in the field of fine properties tuning for advanced applications.

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Section: Tuning the Properties Of Composites Through The Introduction...mentioning

confidence: 99%

On the Use of Polymer-Based Composites for the Creation of Optical Sensors: A Review

2022

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Oligohexamethylene Guanidine Derivative as a Means to Prevent Biological Fouling of a Polymer-Based Composite Optical Oxygen Sensor

Lisowski,

Korobova,

Naumova

et al. 2023

Polymers

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The use of biocidal agents is a common practice for protection against biofouling in biomass-rich environments. In this paper, oligohexamethyleneguanidine (OHMG) polymer, known for its biocidal properties, was further modified with para-aminosalicylic acid (PAS) to enhance its properties against microorganisms coated with a lipid membrane. The structure of the product was confirmed by 1H NMR, 13C NMR, and FTIR spectroscopy. The values of the minimum inhibitory concentration (MIC) against Mycobacterium smegmatis ATCC 607 and Pseudomonas chlororaphis 449 were found to be 1.40 and 1.05 μg/mL, respectively. The synthesized substance was used as an additive to the polymer matrix of the composite optical oxygen sensor material. A series of samples with different contents of OHMG-PAS was prepared using a co-dissolution method implying the fabrication of a coating from a solution containing both polymers. It turned out that the mutual influence of the components significantly affects the distribution of the indicator in the matrix, surface morphology, and contact angle. The optimal polymer content turned out to be wt.3%, at which point the water contact angle reaches almost 122°, and the fouling rate decreases by almost five times, which is confirmed by both the respiratory MTT assay and confocal microscopy with staining. This opens up prospects for creating stable and biofouling-resistant sensor elements for use in air tanks or seawater.

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Tuning the Sensitivity and Dynamic Range of Optical Oxygen Sensing Films by Blending Various Polymer Matrices

Cited by 2 publications

References 45 publications

On the Use of Polymer-Based Composites for the Creation of Optical Sensors: A Review

On the Use of Polymer-Based Composites for the Creation of Optical Sensors: A Review

Oligohexamethylene Guanidine Derivative as a Means to Prevent Biological Fouling of a Polymer-Based Composite Optical Oxygen Sensor

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