Preparation of Spin-Coated Poly(vinyl alcohol)/
chitosan/ Gold Nanoparticles Composite
and Its Potential for Colorimetric Detection
of Cyanide in Water

Budlayan, Marco Laurence M.; Oracion, Jeanne Phyre L.; Rosa, Lyka De La; Rodriguez, Mikee Joy; Perez, Ser John Lynon P.; Arco, Susan D.; Manigo, Jonathan P.; Austria, Eleanor; Alguno, Arnold C.; Deocaris, Custer C.; Capangpangan, Rey Y.

doi:10.15244/pjoes/140276

Cited by 7 publications

(3 citation statements)

References 23 publications

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“…Meanwhile, the peaks at around 1375, 1078, and 831 cm −1 seen in the spectrum of PVA were probably related to the C‐H, C‐O, and C‐C bonds, respectively. It is interesting to note that almost all the bands observed in the spectrum of CH and PVA were present in the PVA/CH spectrum indicating that the components of the CH/PVA blended coating were successfully combined (Budlayan et al, 2022 ). The bands of about 1400 cm −1 observed for different weight fractions of CH/PVA (at 1419 cm −1 for 75:25, at 1419 cm −1 for 50:50, and at 1417 cm −1 for 25:75) are attributed to C=N pyridine ring vibrations.…”

Section: Resultsmentioning

confidence: 99%

Egg shelf life can be extended using varied proportions of polyvinyl alcohol/chitosan composite coatings

shurmasti

Kermani

Sarvarian

et al. 2023

Food Science & Nutrition

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Using biopolymers in the form of edible coating as egg eco‐friendly packaging is a progressive approach. The blending of biopolymers is one of the procedures for overcoming mechanical weakness and benefiting from their maximum synergistic effect. Aiming to determine the relative ratios of chitosan (CH 4 w/v%) and polyvinyl alcohol (PVA 5 w/v%) in the composition of blended coatings, an experiment was conducted with six treatments (r = 3) including different ratios of CH/PVA (0:0; control, 100:0, 75:25, 50:50, 25:75, and 0:100) wt% in a period of 4 weeks of egg storage at ambient temperature, emphasizing eggshell barrier properties. Based on the eggshell analysis result, SEM images and FTIR spectra demonstrated that the components were firmly integrated into the blended coatings as well as had more intertwined than their pure ones, which was also reflected in the evaluation results of their internal quality parameters. In addition, the results showed that by enhancing the ratio of polyvinyl alcohol from 25 to 75 wt%, the blended coating barrier efficiency was relatively improved (p < .05). Meanwhile, the lowest percentage of weight loss (0.57 ± 0.08%), pH value of albumin (8.30 ± 0.04), the highest values of Haugh unit (61.00 ± 0.07), yolk index (0.37 ± 0.02) were observed in eggs coated with CH/PVA 25:75 wt%. But there was no difference in 50 or 70 wt% PVA significantly. Therefore, the CH/PVA blended coatings containing around 50–75 wt% PVA, as egg biodegradable packaging, can be used to extend the shelf life for 2–3 weeks at ambient temperature.

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Section: Resultsmentioning

confidence: 99%

Egg shelf life can be extended using varied proportions of polyvinyl alcohol/chitosan composite coatings

shurmasti

Kermani

Sarvarian

et al. 2023

Food Science & Nutrition

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show abstract

“…M. Budlayan and colleagues [ 75 ] discovered the potential colorimetric detection of cyanide anion in natural water samples. Here, PVA-chitosan-coated AuNPs were used to produce a thin film.…”

Section: Plasmonic Nanomaterials-based Colorimetric Sensors For Cyani...mentioning

confidence: 99%

Optical Sensing of Toxic Cyanide Anions Using Noble Metal Nanomaterials

et al. 2023

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Water toxicity, one of the major concerns for ecosystems and the health of humanity, is usually attributed to inorganic anions-induced contamination. Particularly, cyanide ions are considered one of the most harmful elements required to be monitored in water. The need for cyanide sensing and monitoring has tempted the development of sensing technologies without highly sophisticated instruments or highly skilled operations for the objective of in-situ monitoring. Recent decades have witnessed the growth of noble metal nanomaterials-based sensors for detecting cyanide ions quantitatively as nanoscience and nanotechnologies advance to allow nanoscale-inherent physicochemical properties to be exploited for sensing performance. Particularly, noble metal nanostructure e-based optical sensors have permitted cyanide ions of nanomolar levels, or even lower, to be detectable. This capability lends itself to analytical application in the quantitative detection of harmful elements in environmental water samples. This review covers the noble metal nanomaterials-based sensors for cyanide ions detection developed in a variety of approaches, such as those based on colorimetry, fluorescence, Rayleigh scattering (RS), and surface-enhanced Raman scattering (SERS). Additionally, major challenges associated with these nano-platforms are also addressed, while future perspectives are given with directions towards resolving these issues.

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“…Nanoparticles have tremendous applications in the field of medicine. NPs are used in the regeneration of various tissues/organs, in targeted drug delivery and cell bio-imaging, for treatment of cancer, neurodegenerative diseases, inflammatory diseases, cardiovascular and pulmonary diseases, atherosclerosis, Parkinson's disease, human immunodeficiency virus, tuberculosis, skin infections and bone inflammation [1][2][3][4][5]. Many nanotechnology-based products have been authorized as therapeutic agents in the past few decades.…”

Section: Introductionmentioning

confidence: 99%

Potential Antifungal and Antimicrobial Effects of Nano Zinc Oxide Particles Obtained from <i>Cymbogobon citratus</i> Leaf Extract Using Green Technology

Hussain¹,

Aziz²,

Waqas³

et al. 2023

Pol. J. Environ. Stud.

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Nanoparticles obtained from physical and chemical methods are uniformly sized having long term stabilities. However, their syntheses usually involve expensive chemicals which are toxic, carcinogenic and require high temperature and pressure. These issues can be addressed by facile and eco-friendly green synthesis. This study focuses on to synthesis of zinc oxide nanoparticles (ZnO NPs) using Cymbogobon Citratus aqueous extract with zinc acetate. The prepared particles were calcined at 450 o C. The synthesized NPs were categorized using FTIR, UV-Visible, XRD and SEM techniques. FTIR verified zinc oxide vibrational frequency at 551 cm -1 . UV-Visible spectrum displayed the ZnO absorption peak at λ max of 370 nm. XRD studies showed average particle size about 4.96 nm much smaller as compared to most of the ZnO NPs reported earlier. SEM image demonstrated crystalline and porous nano-sheets for the prepared NPs. These NPs were also evaluated against Staphylococcus aureus, Escherichia coli, Salmonella typhi, Microsporum cannis, Aspergillus flavus and Fusarium

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Preparation of Spin-Coated Poly(vinyl alcohol)/ chitosan/ Gold Nanoparticles Composite and Its Potential for Colorimetric Detection of Cyanide in Water

Cited by 7 publications

References 23 publications

Egg shelf life can be extended using varied proportions of polyvinyl alcohol/chitosan composite coatings

Egg shelf life can be extended using varied proportions of polyvinyl alcohol/chitosan composite coatings

Optical Sensing of Toxic Cyanide Anions Using Noble Metal Nanomaterials

Potential Antifungal and Antimicrobial Effects of Nano Zinc Oxide Particles Obtained from <i>Cymbogobon citratus</i> Leaf Extract Using Green Technology

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