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938254

Sigma-Aldrich

Silica

new

Monodisperse, non-porous, 40 µm

Synonym(s):

Monodisperse silicon dioxide, Non-porous silica, Non-porous silicon dioxide, Silicon dioxide

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About This Item

Linear Formula:
SiO2
CAS Number:
7631-86-9
Molecular Weight:
60.08
MDL number:
MFCD00011232
UNSPSC Code:
12352309

Quality Level

100

form

powder

particle size

40 μm

pore size

non-porous

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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General description

Our monodisperse non-porous silica particles have a uniform particle size of 40 µm and a narrow size distribution. Furthermore, these particles are non-porous, meaning they do not contain any internal void spaces. This feature renders their surfaces impermeable to fluids and gases. Additionally, their monodispersity contributes to excellent dispersion properties, allowing them to disperse evenly and maintain stability in a range of solvents, suspensions, or matrices.

Application

Monodispersed non-porous silica particles find use in various applications such as fillers or additives in composites, coatings, paints, and polymers to enhance mechanical properties or provide unique functionalities. Additionally, these particles find utility in diagnostics, drug delivery systems, sensors, catalysis, and environmental remediation. Their tailored size, uniformity, and stable surfaces contribute to their effectiveness in these applications. The silica particle surface exhibits a highly modifiable chemistry that allows for easy passive functionalization with a variety of biomolecules. The silica particles can also be modified with different functional groups, which can serve as a scaffold for the covalent attachment of biological components such as dextran, antibodies, DNA, or peptides.,

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Sean E Lehman et al.
Langmuir : the ACS journal of surfaces and colloids, 32(3), 731-742 (2015-12-31)
Understanding complex chemical changes that take place at nano-bio interfaces is of great concern for being able to sustainably implement nanomaterials in key applications such as drug delivery, imaging, and environmental remediation. Typical in vitro assays use cell viability as
Ja-Yeon Kim et al.
Scientific reports, 7(1), 14566-14566 (2017-11-08)
Nonporous silica nanoparticles (SiNPs) are promising drug carrier platforms for intraocular drug delivery. In this study, we investigated the safety of three different sizes of SiNPs (50, 100, and 150 nm) in a human corneal endothelial cell (HCEC) line, B4G12. The
Li Tang et al.
Nano today, 8(3), 290-312 (2013-09-03)
Nanomedicine, the use of nanotechnology for biomedical applications, has potential to change the landscape of the diagnosis and therapy of many diseases. In the past several decades, the advancement in nanotechnology and material science has resulted in a large number

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