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Merck

719900

Sigma-Aldrich

Resomer® RG 504 H, Poly(D,L-lactide-co-glycolide)

acid terminated, lactide:glycolide 50:50, Mw 38,000-54,000

Synonym(e):

RESOMER® RG 504 H

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About This Item

Lineare Formel:
[C3H4O2]x[C2H2O2]y
CAS-Nummer:
MDL-Nummer:
UNSPSC-Code:
12162002
NACRES:
NA.23
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Qualitätsniveau

Form

amorphous

Zufuhrverhältnis

lactide:glycolide 50:50

Mol-Gew.

Mw 38,000-54,000

Zeitrahmen für den Abbau

<3 months

Viskosität

0.45-0.60 dL/g, 0.1 % (w/v) in chloroform(25 °C, Ubbelohde) (size 0c glass capillary viscometer)

Übergangstemp.

Tg 46-50 °C

Lagertemp.

2-8°C

SMILES String

O2C(C(=O)OC(C2=O)C)C.O1CC(=O)OCC1=O

InChI

1S/C6H8O4.C4H4O4/c1-3-5(7)10-4(2)6(8)9-3;5-3-1-7-4(6)2-8-3/h3-4H,1-2H3;1-2H2

InChIKey

LCSKNASZPVZHEG-UHFFFAOYSA-N

Anwendung

Resomer® RG 504 H, Poly(D, L-Lactide-co-Glycolide) can be used to fabricate a biodegradable hemostyptic device for safe and locally controlled release of thrombin which promotes local blood clot formation.

It can be used to preparepolymer nanospheres for encapsulating CuO, to form stimuli-responsivemultifunctional nanocarriers.

Rechtliche Hinweise

Product of Evonik
RESOMER is a registered trademark of Evonik Rohm GmbH

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


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Analysenzertifikate (COA)

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Die Dokumentenbibliothek aufrufen

Niranjan G Kotla et al.
Nanomaterials (Basel, Switzerland), 9(9) (2019-09-05)
There is a pressing clinical need for advanced colon-specific local drug delivery systems that can provide major advantages in treating diseases associated with the colon, such as inflammatory bowel disease (IBD) and colon cancer. A precise colon targeted drug delivery
Hossein Kamali et al.
Materials science & engineering. C, Materials for biological applications, 96, 561-575 (2019-01-05)
An in situ forming gel (ISFG) of buprenorphine (BP) was prepared using PLGA-PEG-PLGA (triblock) and N‑methyl‑2‑pyrrolidone as solvent for decreasing the initial burst release. Supercritical CO2 method was used for ring opening polymerization of triblock. The optimum formulation of ISFG
Igor Jeroukhimov et al.
Journal of the American College of Surgeons, 218(1), 102-107 (2013-11-12)
Chronic pain after inguinal hernia repair occurs in 16% to 62% of patients. The underlying mechanism probably involves sensory nerve damage and abnormal healing that might be influenced by the materials chosen for the procedure. We hypothesize that nonabsorbable sutures
Maria Kirzhner et al.
Ophthalmology, 120(6), 1300-1304 (2013-02-13)
To compare wrapped and polymer-coated hydroxyapatite implants in children undergoing primary enucleation with no adjuvant therapies. Retrospective, interventional cohort study. All children undergoing primary enucleation without adjuvant therapies between 1999 and 2009 at a tertiary pediatric cancer hospital. Review and
Kyle E Broaders et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(14), 5497-5502 (2009-03-27)
Materials that combine facile synthesis, simple tuning of degradation rate, processability, and biocompatibility are in high demand for use in biomedical applications. We report on acetalated dextran, a biocompatible material that can be formed into microparticles with degradation rates that

Artikel

Interest in utilizing biodegradable polymers for biomedical applications has grown since the 1960s.

Synthetic aliphatic polyesters dominate resorbable biomaterials in clinical use.

AliAliphatic polyesters, including polylactide and polyglycolide, are biodegradable polymers widely used in medical applications.

Immunosuppressive tumor-associated myeloid cells (TAMC) are responsible for glioblastoma (GBM) resistance to immunotherapies and existing standard of care treatments. This mini-review highlights recent progress in implementing nanotechnology in advancing TAMC-targeted therapies for GBM.

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Fragen

1-4 von 4 Fragen  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 Antwort
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 Antwort
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. What is the degree of polydispersity of Resomer® RG 504 H, Poly(D,L-lactide-co-glycolide)?

    1 Antwort
    1. The degree of polydispersity for this product is calculated as the weight average molecular weight divided by the number average molecular weight (Mw/Mn). The specific value can be found on the Certificate of Analysis (COA) for each lot.

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  4. Is the unit of the PLGA molecular weight of Resomer® RG 504 H, Poly(D, L-lactide-co-glycolide) Da?

    1 Antwort
    1. Yes, the molecular weight unit of this product is in Da or daltons.

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