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Sigma-Aldrich

Poly(N-isopropylacrylamide)

Mn ~40,000

Synonym(s):

NIPAM polymer, PNIPAM, Polyacrylamide, polyNIPAM

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About This Item

Linear Formula:
CH3(C6H11NO)nCH3
CAS Number:
25189-55-3
MDL number:
MFCD00284282
UNSPSC Code:
12162002
PubChem Substance ID:
24877546
NACRES:
NA.23

mol wt

Mn 20,000-60,000
Mn ~40,000

mp

96 °C

SMILES string

CC(C)NC(=O)C=C

InChI

1S/C6H11NO/c1-3-5-7-6(8)4-2/h4H,2-3,5H2,1H3,(H,7,8)

InChI key

WDFKEEALECCKTJ-UHFFFAOYSA-N

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Related Categories

Application

PNIPAM-based Smart Surfaces for Cell Sheet Tissue Engineering
Thermosensitive polymer, can be used to form a hydrogel. Aqueous polymer solution undergoes a phase transition from a soluble to an insoluble state when the temperature is raised to ca. 32 °C.

Physical form

Thermosensitive polymer, hydrogel

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Avraham Halperin et al.
Langmuir : the ACS journal of surfaces and colloids, 28(48), 16623-16637 (2012-11-06)
Thermoresponsive tissue culture substrates based on PNIPAM brushes are used to harvest confluent cell sheets for tissue engineering. The prospect of clinical use imposes the utilization of culture medium free of bovine serum, thus suggesting conjugation with adhesion peptides containing
Soichi Takagi et al.
Cell transplantation, 21(2-3), 411-420 (2012-07-17)
The de novo engineering of a uniform hepatocyte sheet in vitro is considered as a novel approach for liver-directed therapeutics. Hepatocytes can be cultured on a temperature-responsive culture dishes coated with poly(N-isopropylacrylamide) (PIPAAm). Following multiple days of culturing, the
A C C Rotzetter et al.
Advanced materials (Deerfield Beach, Fla.), 24(39), 5352-5356 (2012-08-31)
Buildings can be effectively cooled by a bioinspired sweating-like action based on thermoresponsive hydrogels (PNIPAM), which press out their stored water when exceeding the lower critical solution temperature. The surface temperature is reduced by 15 °C compared to that of
Maria E Nash et al.
Stem cell reviews, 9(2), 148-157 (2013-01-29)
The facile regeneration of undifferentiated human mesenchymal stem cells (hMSCs) from thermoresponsive surfaces facilitates the collection of stem cells avoiding the use of animal derived cell detachment agents commonly used in cell culture. This communication proposes a procedure to fabricate
Tatiya Trongsatitkul et al.
Colloids and surfaces. B, Biointerfaces, 103, 244-252 (2012-12-04)
The effect of PEGylation on the thermal response and protein adsorption resistance of crosslinked PNIPAm microgels was investigated. It was found that the presence of PEG, its molecular weight (M(n) 300 and 1100 g/mol) and its concentration (10, 20, and
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Articles

Universal Platform for Surface Modification Employing Grafted Polymer Layers

The present publication focuses on synthesis and characterization of nanothick, chemically grafted polymer films (polymer brushes) on various inorganic and polymeric substrates.

Designing Temperature and pH Sensitive NIPAM Based Polymers

Poly(N-isopropylacrylamide), or PNIPAM, is a stimuli-responsive polymer that responds to changes in pH and temperature and has a LCST around 32 C.

Poly(N-isopropylacrylamide)-based Smart Surfaces for Cell Sheet Tissue Engineering

Tissue engineering has become a key therapeutic tool in the treatment of damaged or diseased organs and tissues, such as blood vessels and urinary bladders.

Stimuli-Responsive Materials as Intelligent Drug Delivery Systems

By altering the physicochemical properties, smart or intelligent drug delivery systems can be designed to deliver therapeutic molecules on-demand. Learn more about the application of stimuli-responsive materials in drug delivery.

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