Current state and future prospects of sensors for evaluating polymer biodegradability and sensors made from biodegradable polymers: A review

Koh, Lai Mun; Khor, Sook Mei

doi:10.1016/j.aca.2022.339989

Cited by 29 publications

(8 citation statements)

References 135 publications

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“…[1][2][3][4][5] Polymer-based materials possess a number of unique physical properties due to which they can be used as an active sensing material in sensing devices. 6,7 A number of properties of polymer materials can be altered, which makes them functional and interactive in nature. The functionalities of many polymer-based semiconductors depend on their oxidative states 8,9 and thickness which need to be adjusted during their synthesis, and therefore, scientists are developing various new techniques for the synthesis of polymer-based materials.…”

Section: Introductionmentioning

confidence: 99%

“…Different polymer materials are evolving for application in electronic and optoelectronic devices 1–5 . Polymer‐based materials possess a number of unique physical properties due to which they can be used as an active sensing material in sensing devices 6,7 . A number of properties of polymer materials can be altered, which makes them functional and interactive in nature.…”

Section: Introductionmentioning

confidence: 99%

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Smartphone‐based colorimetric determination of some physicochemical properties of polyaniline on flexible cellulose substrate

Das,

Bhattacharya,

Das

et al. 2024

Polymer Engineering & Sci

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Polymer‐based materials are of high potential for application as active materials in contemporary electronic gadgets. The functionality of such materials is highly dependent on their oxidation state and requires fine control during their synthesis. Owing to that, we have designed a cost‐effective, simple, portable, system for calibration and the detection of the optical and electrical properties of polyaniline loaded on a paper substrate using a smartphone‐based colorimetric sensor. The vapor phase polymerization technique was adopted for preparing polyaniline. Colorimetric measurements of polyaniline‐loaded papers were achieved by estimating the hue, saturation and value (HSV) color parameter values using an open‐source smartphone application called “Color Grab (Color Detection)” during synthesis at different time intervals. The proposed sensor relies on the principle of Beer–Lambert law. The rear camera of the smartphone acts as a sensor and captures the light signal from the samples and provides information to the colorimetric app. The colorimetric results showed a promising correlation between the color parameter values with their electrical properties. The optical absorbance results of all polyaniline‐loaded papers are also in accordance with the H parameter values. The proposed sensor can be used as a portable smartphone‐based point‐of‐care testing kit to bring in‐situ control during synthesis.Highlights Conducting polymer on flexible cellulose substrate. Smartphone‐based visual colorimetric sensor. Biodegradable and environment‐friendly electronic material. Variation of electrical properties in terms of hue values. Cheap, portable sensor for point‐of‐care testing.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Smartphone‐based colorimetric determination of some physicochemical properties of polyaniline on flexible cellulose substrate

Das,

Bhattacharya,

Das

et al. 2024

Polymer Engineering & Sci

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show abstract

“…The development of biodegradable sensors for this purpose would offer a significant advantage, obviating the need for a second procedure for device removal [ 4 ]. Biodegradable sensors are largely polymer-based [ 5 ]; however, the hydrophilicity of most polymers leads to swelling and water absorption, which can cause premature failure of sensors due to early degradation of internal components. In addition, polymer degradation is associated with inflammatory responses [ 6 , 7 , 8 ], driving a need for alternative materials for intracranial sensing.…”

Section: Introductionmentioning

confidence: 99%

A Biodegradable Bioactive Glass-Based Hydration Sensor for Biomedical Applications

et al. 2023

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Monitoring changes in edema-associated intracranial pressure that complicates trauma or surgery would lead to improved outcomes. Implantable pressure sensors have been explored, but these sensors require post-surgical removal, leading to the risk of injury to brain tissue. The use of biodegradable implantable sensors would help to eliminate this risk. Here, we demonstrate a bioactive glass (BaG)-based hydration sensor. Fluorine (CaF2) containing BaG (BaG-F) was produced by adding 5, 10 or 20 wt.% of CaF2 to a BaG matrix using a melting manufacturing technique. The structure, morphology and electrical properties of the resulting constructs were evaluated to understand the physical and electrical behaviors of this BaG-based sensor. Synthesis process for the production of the BaG-F-based sensor was validated by assessing the structural and electrical properties. The structure was observed to be amorphous and dense, the porosity decreased and grain size increased with increasing CaF2 content in the BaG matrix. We demonstrated that this BaG-F chemical composition is highly sensitive to hydration, and that the electrical sensitivity (resistive–capacitive) is induced by hydration and reversed by dehydration. These properties make BaG-F suitable for use as a humidity sensor to monitor brain edema and, consequently, provide an alert for increased intracranial pressure.

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“…Currently, one of the strategies that can effectively solve plastic pollution is to replace most traditional disposable non-degradable plastics with biodegradable plastics that have been put into the market [ 8 , 9 , 10 ]. However, the degradation rate of these biodegradable plastics is slow in the ocean.…”

Section: Introductionmentioning

confidence: 99%

Study on Properties and Degradation Behavior of Poly (Adipic Acid/Butylene Terephthalate-Co-Glycolic Acid) Copolyester Synthesized by Quaternary Copolymerization

Wang

Hou

Huang

et al. 2023

IJMS

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At present, the development and usage of degradable plastics instead of traditional plastics is an effective way to solve the pollution of marine microplastics. Poly (butylene adipate-co-terephthalate) (PBAT) is known as one of the most promising biodegradable materials. Nevertheless, the degradation rate of PBAT in water environment is slow. In this work, we successfully prepared four kinds of high molecular weight polyester copolyesters (PBATGA) via quaternary copolymerization. The results showed that the intrinsic viscosity of PBATGA copolymers ranged from 0.74 to 1.01 dL/g with a glycolic acid content of 0–40%. PBATGA copolymers had excellent flexibility and thermal stability. The tensile strength was 5~40 MPa, the elongation at break was greater than 460%, especially the elongation at break of PBATGA10 at 1235%, and the thermal decomposition temperature of PBATGA copolyesters was higher than 375 °C. It was found that PBATGA copolyester had a faster hydrolysis rate than PBAT, and the weight loss of PBATGA copolymers showed a tendency of pH = 12 > Lipase ≈ pH = 7 > pH = 2. The quaternary polymerization of PBAT will have the advantage of achieving industrialization, unlike the previous polymerization process. In addition, the polymerization of PBATGA copolyesters not only utilizes the by-products of the coal chemical industry, but also it can be promising in the production of biodegradable packaging to reduce marine plastic pollution.

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Current state and future prospects of sensors for evaluating polymer biodegradability and sensors made from biodegradable polymers: A review

Cited by 29 publications

References 135 publications

Smartphone‐based colorimetric determination of some physicochemical properties of polyaniline on flexible cellulose substrate

Smartphone‐based colorimetric determination of some physicochemical properties of polyaniline on flexible cellulose substrate

A Biodegradable Bioactive Glass-Based Hydration Sensor for Biomedical Applications

Study on Properties and Degradation Behavior of Poly (Adipic Acid/Butylene Terephthalate-Co-Glycolic Acid) Copolyester Synthesized by Quaternary Copolymerization

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