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Merck

938181

Sigma-Aldrich

Silica

hollow nanoparticles, 1000 nm particle size, pore size 40 Å

Synonym(s):

Hollow silica, Hollow silica nanospheres, Hollow silicon dioxide, Silicon dioxide

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5 G
$160.00

$160.00


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5 G
$160.00

About This Item

Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
MDL number:
UNSPSC Code:
12352309

$160.00


Please contact Customer Service for Availability

Request a Bulk Order

Quality Level

form

powder

particle size

1000 nm

pore size

40 Å pore size

bp

2230 °C (lit.)

mp

>1600 °C (lit.)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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1 of 4

This Item
938165938157938270
Silica hollow nanoparticles, 1000 nm particle size, pore size 40 Å

938181

Silica

Silica hollow nanoparticles, 500 nm particle size, pore size 40 Å

938165

Silica

Silica hollow nanoparticles, 500  nm particle size, pore size 20 Å

938157

Silica

Silica mesoporous, 100 μm particle size, pore size ~40 Å

938270

Silica

form

powder

form

powder

form

powder

form

mesoporous, powder

pore size

40 Å pore size

pore size

40 Å pore size

pore size

20 Å pore size

pore size

~40 Å pore size

bp

2230 °C (lit.)

bp

2230 °C (lit.)

bp

2230 °C (lit.)

bp

2230 °C (lit.)

mp

>1600 °C (lit.)

mp

>1600 °C (lit.)

mp

>1600 °C (lit.)

mp

>1600 °C (lit.)

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

Our hollow silica nanoparticles are precisely engineered spherical particles of silicon dioxide with a purity of 99.999%. These particles have a uniform particle size of 1000 nm comprised of a porous silica shell, with an average pore size of 40 Å, that surrounds the central hollow cavity. The structure and design of these nanoparticles play a vital role in determining their unique physical characteristics. These properties include low density, a large specific surface area, low dielectric constant, low electrical and thermal conductivity, as well as abnormal light scattering behavior.

Application

Hollow silica nanoparticles find application in many areas including drug delivery, catalysis, thermal insulation, and functional coatings. In drug delivery, the hollow interior of the nanoparticles can be used to encapsulate and deliver drugs to specific targets.[1] The average 2-nm sized pores can selectively allow certain molecules to pass through while blocking or slowing others. In catalysis, the nanoparticles can act as catalyst supports due to their high surface area and porosity. Hollow silica nanoparticles impregnated with the catalyst may be particularly useful in environments with complex matrices where the porosity of the particle facilitates the isolation of reactants from matrix elements. In electronic applications, hollow silica’s low thermal conductivity can be utilized to improve thermal insulation properties and their monodisperse particle size facilitates their self-assembly into arrays with unique optical and electrical properties.[2]

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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