Stability of Silver Nanoparticles as Imaging Materials

Sholikhah, Umi Nur; Pujiyanto, Anung; Lestari, Enny; Sarmini, Endang; Widyaningrum, Triani; Kadarisman, Kadarisman; Triyanto, Triyanto; Puspitasari, Putri

doi:10.21776/ub.jpacr.2016.005.03.295

Cited by 6 publications

(4 citation statements)

References 9 publications

(9 reference statements)

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“…Then, broadening of the SPR peak decreased with the processing time. We assume that the broadening of the peak SPR is attributed to the higher value of the polydispersity index, as it was also suggested by Sholikhah et al [ 63 ]…”

Section: Resultsmentioning

confidence: 91%

Experimental and computational investigation of polylactic acid/silver‐NP nanocomposite with antimicrobial activity prepared by plasma in liquid

Sirotkin

Гурина

Khlyustova

et al. 2020

Plasma Processes & Polymers

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In this study, an underwater impulse discharge initiated in an aqueous suspension of a polylactide acid between silver rods is applied to produce silver nanoparticles (AgNPs) and create a polymer nanocomposite. The spectral and energy characteristics of the discharge are obtained. The composites are characterized by methods of scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, and thermogravimetric analysis. Investigation of the formation of the composite of polylactic acid (PLA) with AgNP has been performed using the molecular dynamics method. The PLA/AgNPs composite films were effective against Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Candida albicans, and thus may find future application in the food packaging area.

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Section: Resultsmentioning

confidence: 91%

Experimental and computational investigation of polylactic acid/silver‐NP nanocomposite with antimicrobial activity prepared by plasma in liquid

Sirotkin

Гурина

Khlyustova

et al. 2020

Plasma Processes & Polymers

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“…Silver nanoparticles were synthesized using NaBH4 as a reduction agent refers to Umi et al [3]. The formation of AgNPs was shown by color changes.…”

Section: Synthesis Of Agnps By Chemical Reduction Methodmentioning

confidence: 99%

“…Each synthesis method gave an effect on the size, shape, and stability of NPs [2]. The chemical method by reduction process is the easiest method to synthesis metal NPs such as silver, gold, and copper NPs [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Purification Method of Silver Nanoparticles (AgNPs) and its Identification Using UV-Vis Spectrophotometer

Sholikhah

Pranowo

Arvianto

et al. 2020

KEM

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The development of nanotechnology applications is rapidly growing in many sectors. One of them is silver nanoparticles (AgNPs) which are metal nanoparticles that play an important role, especially in nanomedicine. The most effective method of purifying to obtain stable AgNPs is very important to study. Experiments on the separation of AgNPs have been carried out using the size exclusion chromatography and centrifugation methods to see the effectiveness of refining the two methods. This experiment begins with the synthesis of AgNPs using the chemical reduction method. Then, the synthesized AgNPs were purified by Size Exclusion Chromatography (SEC) and centrifugation method then analyzed using UV-Vis spectrophotometer to determine the maximum peaks before and after purification. The experimental results were obtained that centrifugation methods and SEC having the same effectiveness in refining AgNPs. The centrifugation method at various speed (0, 3000, 6000, 9000, 12000 and 15000 rpm) gave wavelength results 403, 404, 404, 405, 404, and 404 nm. The SEC method using Sephadex-25 column showed the 4th to 8th fractions gave the maximum wavelength 404, 404, 404, 405, and 404 nm, respectively. The maximum wavelength of both methods showed the surface plasmon resonance characteristic of AgNPs. However, centrifugation at 3000 rpm has better homogeneity than SEC method.

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“…al. [12] with some modification. The synthesis was scaled up with multi-steps of the purification step.…”

Section: Scaled-up Synthesis Of Agnps and Purificationmentioning

confidence: 99%

Radiolabeling Technique of Silver Nanoparticles (AgNPs) with Iodine-131 Radionuclide

et al. 2020

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Radiotherapy is an effective cancer therapy, where a certain dose of radiation is aimed specifically at target and is unaffecting to normal tissue. A selective radionuclide must be attached to the specific targeted organ. In this research, silver nanoparticles (AgNPs) were labeled with radionuclide of iodine-131 (131 I) to be used in radiotherapy. Silver nanoparticles were synthesized using silver nitrate 0.0005 M, sodium borohydride 0.002 M, polyvinylpyrrolidone 0.3 % (w/v) and natrium chloride 1.5 M, and then followed by purification by centrifugation. Characterization was carried out with UV-Vis spectrophotometer, transmission electron microscope, particle size analyzer, and zeta-sizer. The results show that the maximum absorbance is on a wavelength of 398 nm, spherical shape with a diameter of 10 nm, polydispersity index of 0.455, and zeta potential value of-8 mV. The radiolabeling was done by adding sodium iodide-131 which had been oxidized by chloramine-T and immobilized in AgNPs colloidal solution, and the activity was then measured using a dose calibrator. The identification of radionuclide showed that the sample was free of impurities. The optimum system of radiochemical purity was obtained using Whatman 1 paper strip as the stationary phase and a mixture of methanol: water: ammonium acetate (1:1:1) as the mobile phase, which gave 96 % purity. This method is suitable for radiolabeling AgNPs with 131 I to be used for radiotherapy.

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Stability of Silver Nanoparticles as Imaging Materials

Cited by 6 publications

References 9 publications

Experimental and computational investigation of polylactic acid/silver‐NP nanocomposite with antimicrobial activity prepared by plasma in liquid

Experimental and computational investigation of polylactic acid/silver‐NP nanocomposite with antimicrobial activity prepared by plasma in liquid

Purification Method of Silver Nanoparticles (AgNPs) and its Identification Using UV-Vis Spectrophotometer

Radiolabeling Technique of Silver Nanoparticles (AgNPs) with Iodine-131 Radionuclide

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