Electrospun NGQDs/PANI/PAN Composite Fibers for Room Temperature Alcohol Sensing

Masemola, Clinton Michael; Shumbula, Ndhivuwo Prince; Gqoba, Siziwe; Tetana, Zikhona N.; Moloto, Nosipho; Linganiso, Ella Cebisa

doi:10.1109/ecice52819.2021.9645665

Cited by 6 publications

(4 citation statements)

References 22 publications

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“…In a typical synthesis, as shown in Fig. 1 (a), 1.50 g of ammonium persulphate (APS) and 1 mL of aniline were dissolved in two separate 250 mL beakers containing 25 mL of HCl [ 19 ]. The aqueous solution of APS was slowly transferred into the second beaker containing aniline with constant stirring of the solution and reaction maintained at about 0 °C.…”

Section: Methodsmentioning

confidence: 99%

Room temperature sensing of primary alcohols via polyaniline/zirconium disulphide

Fadojutimi

Masemola

Maubane-Nkadimeng

et al. 2023

Heliyon

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Section: Methodsmentioning

confidence: 99%

Room temperature sensing of primary alcohols via polyaniline/zirconium disulphide

Fadojutimi

Masemola

Maubane-Nkadimeng

et al. 2023

Heliyon

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“…Masemola et al. (2021) reported nitrogen (N)‐doped GQDs prepared by a microwave‐assisted hydrothermal method. Urea and citric acid were used as N and C sources and uniformly distributed spherical N‐GQDs were obtained.…”

Section: Applications Of the Qd‐based Fluorescent Nanosensors In Food...mentioning

confidence: 99%

“…The results showed that the sensor had the characteristics of a lower detection limit (ppb level), good long-term stability, stable repeatability, good selectivity, high response, and short response/recovery time. Masemola et al (2021) reported nitrogen (N)-doped GQDs prepared by a microwaveassisted hydrothermal method. Urea and citric acid were used as N and C sources and uniformly distributed spherical N-GQDs were obtained.…”

Section: Volatile Componentsmentioning

confidence: 99%

QD‐based fluorescent nanosensors: Production methods, optoelectronic properties, and recent food applications

Jia,

Shi,

Yang

et al. 2023

Comp Rev Food Sci Food Safe

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Food quality and safety are crucial public health concerns with global significance. In recent years, a series of fluorescence detection technologies have been widely used in the detection/monitoring of food quality and safety. Due to the advantages of wide detection range, high sensitivity, convenient and fast detection, and strong specificity, quantum dot (QD)‐based fluorescent nanosensors have emerged as preferred candidates for food quality and safety analysis. In this comprehensive review, several common types of QD production methods are introduced, including colloidal synthesis, self‐assembly, plasma synthesis, viral assembly, electrochemical assembly, and heavy‐metal‐free synthesis. The optoelectronic properties of QDs are described in detail at the electronic level, and the effect of food matrices on QDs was summarized. Recent advancements in the field of QD‐based fluorescent nanosensors for trace level detection and monitoring of volatile components, heavy metal ions, food additives, pesticide residues, veterinary‐drug residues, other chemical components, mycotoxins, foodborne pathogens, humidity, and temperature are also thoroughly summarized. Moreover, we discuss the limitations of the QD‐based fluorescent nanosensors and present the challenges and future prospects for developing QD‐based fluorescent nanosensors. As shown by numerous publications in the field, QD sensors have the advantages of strong anti‐interference ability, convenient and quick operation, good linear response, and wide detection range. However, the reported assays are laboratory‐focused and have not been industrialized and commercialized. Promising research needs to examine the potential applications of bionanotechnology in QD‐based fluorescent nanosensors, and focus on the development of smart packaging films, labeled test strips, and portable kits‐based sensors.

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“…Therefore, exploration of green synthesis methods with fewer synthesis steps, minimum use of toxic chemicals, and reduced synthesis time is necessary. At present, microwave-assisted synthesis is highly desirable due to its simplicity, short synthesis time, low cost, and homogeneous heating [92]. In our recent study, spherical carbons (CSs) were successfully fabricated from corncob via alkaline treatment, acid hydrolysis, and microwave synthesis, and were subsequently applied in the fluorescent detection of Fe 3+ in aqueous solution [77].…”

Section: Carbon Quantum Dots (Cqds)mentioning

confidence: 99%

Lignocellulosic Biomass Waste-Derived Cellulose Nanocrystals and Carbon Nanomaterials: A Review

Magagula

Masemola

Ballim

et al. 2022

IJMS

Self Cite

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Rapid population and economic growth, excessive use of fossil fuels, and climate change have contributed to a serious turn towards environmental management and sustainability. The agricultural sector is a big contributor to (lignocellulosic) waste, which accumulates in landfills and ultimately gets burned, polluting the environment. In response to the current climate-change crisis, policymakers and researchers are, respectively, encouraging and seeking ways of creating value-added products from generated waste. Recently, agricultural waste has been regularly appearing in articles communicating the production of a range of carbon and polymeric materials worldwide. The extraction of cellulose nanocrystals (CNCs) and carbon quantum dots (CQDs) from biomass waste partially occupies some of the waste-recycling and management space. Further, the new materials generated from this waste promise to be effective and competitive in emerging markets. This short review summarizes recent work in the area of CNCs and CQDs synthesised from biomass waste. Synthesis methods, properties, and prospective application of these materials are summarized. Current challenges and the benefits of using biomass waste are also discussed.

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Electrospun NGQDs/PANI/PAN Composite Fibers for Room Temperature Alcohol Sensing

Cited by 6 publications

References 22 publications

Room temperature sensing of primary alcohols via polyaniline/zirconium disulphide

Room temperature sensing of primary alcohols via polyaniline/zirconium disulphide

QD‐based fluorescent nanosensors: Production methods, optoelectronic properties, and recent food applications

Lignocellulosic Biomass Waste-Derived Cellulose Nanocrystals and Carbon Nanomaterials: A Review

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