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Nta v2.3

Manufactured by Malvern Panalytical
Sourced in United Kingdom

The NTA (v2.3) is a particle analysis instrument manufactured by Malvern Panalytical. It utilizes Nanoparticle Tracking Analysis (NTA) technology to measure the size, concentration, and movement of nanoparticles in liquid suspensions.

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5 protocols using nta v2.3

1

Nanoparticle size and concentration analysis

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Particle size and concentration distribution of the EMNs and exosomes were also measured using NTA (v2.3; Malvern Instruments, Malvern, UK) according to manufacturer’s instructions. Briefly, EMNs samples were vortexed and diluted to a final dilution of 1:1000 in milliQ H2O and exosomes 1:100. Blank-filtered H2O was run as a negative control. Each sample analysis was conducted for 60 s and measured five times using Nanosight automatic analysis settings. The detection threshold was set to level 11 and camera level to 15.
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2

Characterizing BMSC-Derived Exosomes

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Particle size and concentration distribution of the isolated exosomes stemmed from BMSCs were measured using NTA (v2.3; Malvern Instruments, Malvern, UK) according to manufacturer's instructions. Brie y, exosomes samples were vortexed and diluted to a nal dilution of 1 : 2000 in ltered moleculargrade H2O. Blank-ltered H2O was run as a negative control. Each sample analysis was conducted for 60 s and measured three times using Nanosight automatic analysis settings.
Transmission electron microscopy (TEM)
TEM analysis was performed to con rm BMSCs-derived exosomes morphology. Brie y, exosomes samples were diluted with PBS to the appropriate concentration, and ~20-40 μL of PBS solution containing exosomes was transferred to a copper grid for incubation at room temperature for 5 min. Filter paper was used for absorbing unevaporated solution. Exosomes samples were negatively stained with 4% paraformaldehyde acid solution at room temperature for 5 min and dried at 65 °C for 10 min. Images of exosomes samples were obtained using a Hitachi H-7650 transmission electron microscope (Hitachi, Tokyo, Japan).
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3

Characterizing BMSC-Derived Exosomes

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Particle size and concentration distribution of the isolated exosomes stemmed from BMSCs were measured using NTA (v2.3; Malvern Instruments, Malvern, UK) according to manufacturer's instructions. Brie y, exosomes samples were vortexed and diluted to a nal dilution of 1 : 2000 in ltered moleculargrade H2O. Blank-ltered H2O was run as a negative control. Each sample analysis was conducted for 60 s and measured three times using Nanosight automatic analysis settings.
Transmission electron microscopy (TEM)
TEM analysis was performed to con rm BMSCs-derived exosomes morphology. Brie y, exosomes samples were diluted with PBS to the appropriate concentration, and ~20-40 μL of PBS solution containing exosomes was transferred to a copper grid for incubation at room temperature for 5 min. Filter paper was used for absorbing unevaporated solution. Exosomes samples were negatively stained with 4% paraformaldehyde acid solution at room temperature for 5 min and dried at 65 °C for 10 min. Images of exosomes samples were obtained using a Hitachi H-7650 transmission electron microscope (Hitachi, Tokyo, Japan).
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4

Characterizing BMSC-Derived Exosomes

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Particle size and concentration distribution of the isolated exosomes stemmed from BMSCs were measured using NTA (v2.3; Malvern Instruments, Malvern, UK) according to manufacturer's instructions. Brie y, exosomes samples were vortexed and diluted to a nal dilution of 1 : 2000 in ltered moleculargrade H2O. Blank-ltered H2O was run as a negative control. Each sample analysis was conducted for 60 s and measured three times using Nanosight automatic analysis settings.
Transmission electron microscopy (TEM)
TEM analysis was performed to con rm BMSCs-derived exosomes morphology. Brie y, exosomes samples were diluted with PBS to the appropriate concentration, and ~20-40 μL of PBS solution containing exosomes was transferred to a copper grid for incubation at room temperature for 5 min. Filter paper was used for absorbing unevaporated solution. Exosomes samples were negatively stained with 4% paraformaldehyde acid solution at room temperature for 5 min and dried at 65 °C for 10 min. Images of exosomes samples were obtained using a Hitachi H-7650 transmission electron microscope (Hitachi, Tokyo, Japan).
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5

Characterizing BMSC-Derived Exosomes

Check if the same lab product or an alternative is used in the 5 most similar protocols
Particle size and concentration distribution of the isolated exosomes stemmed from BMSCs were measured using NTA (v2.3; Malvern Instruments, Malvern, UK) according to manufacturer's instructions. Brie y, exosomes samples were vortexed and diluted to a nal dilution of 1 : 2000 in ltered moleculargrade H2O. Blank-ltered H2O was run as a negative control. Each sample analysis was conducted for 60 s and measured three times using Nanosight automatic analysis settings.
Transmission electron microscopy (TEM)
TEM analysis was performed to con rm BMSCs-derived exosomes morphology. Brie y, exosomes samples were diluted with PBS to the appropriate concentration, and ~20-40 μL of PBS solution containing exosomes was transferred to a copper grid for incubation at room temperature for 5 min. Filter paper was used for absorbing unevaporated solution. Exosomes samples were negatively stained with 4% paraformaldehyde acid solution at room temperature for 5 min and dried at 65 °C for 10 min. Images of exosomes samples were obtained using a Hitachi H-7650 transmission electron microscope (Hitachi, Tokyo, Japan).
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