Chitosan as a Capping Agent of Silver Nanoparticles

Badi’ah, Hanim Istatik

doi:10.30598//ijcr.2021.9-han

Cited by 4 publications

(7 citation statements)

References 15 publications

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“…From the study of Badi'ah [51], the success of stabilization AgNPs and chitosan can confirm by FTIR. The FTIR peak between chitosan and AgNPs-chitosan had an absorption band of -OH groups in 3427.62 and 3448.84 cm −1 , respectively.…”

Section: Prediction Of Functional Groups and Bondsmentioning

confidence: 92%

“…The interaction of the analyte with chitosan is predicted by hydrogen bonding and electrostatic interactions. So, with the presence of analytes, AgNPs-Chitosan aggregation is induced and results in visible color changes as Badi'ah [51] used it for colorimetric detection of sialic acid. Other compounds, for example, are dopamine [10][11].…”

Section: Surface Modification With Organic Ligandsmentioning

confidence: 99%

“…The CO group in chitosan had an absorption in the 1072.46 and 1053.17 cm −1 when AgNPS stabilized with chitosan. -NH group of chitosan resulted in the band in an area of 1575.89 cm −1 and lost the absorption after stabilization AgNPs with chitosan [51].…”

Section: Prediction Of Functional Groups and Bondsmentioning

confidence: 99%

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Strategies in Improving Sensitivity of Colorimetry Sensor Based on Silver Nanoparticles in Chemical and Biological Samples

et al. 2022

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Colorimetric sensors-based silver nanoparticles (AgNPs) are very interesting to be studied and developed because of the simplicity and ease in the principle of detection. It does not require sophisticated and affordable tools but still has high sensitivity. The coefficient extinction of AgNPs is relatively higher than AuNPs of the same size, making the sensitivity of AgNPs higher than AuNPs. The principle of detection is based on the aggregation of nanoparticles with analytes that causes shifting in Localized Surface Plasmon Resonance (LSPR) to a larger wavelength, commonly called a bathochromic shift or redshift. It is a favorite phenomenon because it is more easily observed with naked eyes. This sensor shows a good analytic performance with high sensitivity due to strong LSPR and good strategies that selectively bring interaction between analytes and AgNPs. AgNPs are characterized using UV-Visible (Ultra Violet-Visible), TEM (Transmission Electron Microscope), FTIR (Fourier Transform Infrared), and DLS (Dynamic Light Scattering), and many analytes have been detected with this sensor successfully. This article discusses several important parameters in increasing the sensitivity of AgNPs colorimetric sensors. Finally, it can be used as guidelines in the development of methods in the future.

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Section: Prediction Of Functional Groups and Bondsmentioning

confidence: 92%

Section: Surface Modification With Organic Ligandsmentioning

confidence: 99%

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Strategies in Improving Sensitivity of Colorimetry Sensor Based on Silver Nanoparticles in Chemical and Biological Samples

et al. 2022

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“…The results of synthesis using microalgae C.vulgaris with the amount of 3.0, 5.0, and 6.0 g/L produced different solution colors, such as bright brown, brown, and dark brown, respectively, as shown in Figure 1. The color change of resulted solution occurs due to the plasmon vibrations excitation on the nanosilver surface 34) . This color is similar to the results of nanosilver synthesis using fruit extract 35) .…”

Section: Synthesis Of Nanosilvermentioning

confidence: 99%

Chlorella vulgaris-Mediated Nanosilver Synthesis with Chitosan Capping Agent

Suryanto¹,

Yanuhar²,

Fikri³

et al. 2023

Evergreen

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Nanoparticles are widely used for their simplicity, nontoxic, low-production cost, pollutants free, and eco-friendly process. Green synthesis of nanosilver using microalgae is an environmentally benign and emerging technique. The current study aims to synthesize the nanosilver with a chitosan capping agent of the microalgae Chlorella vulgaris. The algal C.vulgaris extract was prepared with a variation of 3.0 g/L, 5.0 g/L, and 6.0 g/L. As a comparison, we use nanosilver synthesis using NaBH4. Extract algal treated with silver nitrate solution to synthesize nanosilver with a chitosan capping agent. Biosynthesized nanosilver was characterized with UV-Visual spectroscopy, particle size analyzer (PSA) analyzer, SEM, and EDS. Results show that nanosilver is successfully synthesized with UV-Visual Spectroscopy results at a wavelength of 400 nm. EDS analysis indicates the presence of silver metal on synthesis results at 3 kV. The PSA confirms that nanosilver produced by adding C.vulgaris of 3.0, 5.0, and 6.0 g/L results in particle size distribution from 57.8 nm -462 nm, 17.2 nm -97.2 nm, and 28.9 nm -81.8 nm, respectively. It is higher when compared with synthesis nanosilver using NaBH, resulting in particle size distribution from 2.26 nm to 171.9 nm. It is confirmed that adding C.vulgaris of 5.0 and 6.0 g/L has successfully made a nanosilver.

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“…Today, chitosan has been widely applied commercially to the chemicals, foods, and pharmaceutical industries (Li et al, 2007). For example, chitosan has been an adsorbent for heavy metals (Bijang et al 2021;Rahayu et al, 2020;Tanasale et al, 2018) and a capping agent for nanoparticles (Badi'ah, 2021). Due to its special properties such as mucoadhesive, biocompatible, biodegradable, non-toxic, and low levels of immunogenicity, chitosan is a very promising biomaterial for its use as a carrier in drug delivery systems (Mardliyati et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Chitosan-Citrate Microparticle Using Ionic Gelation Methods

Latupeirissa

Tanasale

Fransina

et al. 2022

Indo. J. Chem. Res.

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A study has been conducted aimed to synthesize chitosan-citrate using the ionic gelation method and its characterization with FTIR, SEM, SAA, and PSA, as well as solubility and swelling tests. The results showed that chitosan reacted with sodium citrate producing chitosan-citrate particles. The product of chitosan-citrate has a rough and thickened surface morphology. Surface area is obtained by 35.233 m2/g and pore size is 0.027 cc/g, smaller than chitosan. Based on solubility and swelling tests in acidic, alkaline, and neutral media, chitosan-citrate has good resistance and low swelling effect.

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Chitosan as a Capping Agent of Silver Nanoparticles

Cited by 4 publications

References 15 publications

Strategies in Improving Sensitivity of Colorimetry Sensor Based on Silver Nanoparticles in Chemical and Biological Samples

Strategies in Improving Sensitivity of Colorimetry Sensor Based on Silver Nanoparticles in Chemical and Biological Samples

Chlorella vulgaris-Mediated Nanosilver Synthesis with Chitosan Capping Agent

Synthesis and Characterization of Chitosan-Citrate Microparticle Using Ionic Gelation Methods

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