This product is intended for research use only. It is not suitable for any other purpose, which includes, but is not limited to, unauthorized commercial use, in vitro diagnostic use, or therapeutic use in humans or animals. Currently, there is no available product suitable for human use.
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Wichtige Dokumente
P9386
Poly-L-Histidin
mol wt 5,000-25,000
Synonym(e):
L-Histidine homopolymer
Anmeldenzur Ansicht organisationsspezifischer und vertraglich vereinbarter Preise
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About This Item
CAS-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352209
PubChem Substanz-ID:
NACRES:
NA.26
Preise und Verfügbarkeit sind derzeit nicht verfügbar.
Empfohlene Produkte
Form
powder or solid
Mol-Gew.
5,000-25,000
Farbe
white to light yellow
Anwendung(en)
cell analysis
Lagertemp.
−20°C
SMILES String
[N+H3][C@@H](Cc1[nH]cnc1)C(=O)[O-]
InChI
1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
InChIKey
HNDVDQJCIGZPNO-YFKPBYRVSA-N
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Allgemeine Beschreibung
Poly-L-histidine is an amphoteric compound. The imidazole ring in its structure enables protonation−deprotonation.[1]
Anwendung
Biochem./physiol. Wirkung
Poly-L-histidine (Phis) copolymers are biocompatible, pH responsive and are less toxic. It exhibits endolysosomal escape funcationality. The copolymer of Phis with poly(ethylene glycol)−poly(d,l-lactide) (PEG-PLA) is effective in delivering doxorubicin.[5] pH sensitive poly(l-histidine) copolymer micelles have application in delivering anticancer drugs in acidic microenvironment.[6]
Hinweis zur Analyse
Molecular weight by MALLS.
Sonstige Hinweise
For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, type N95 (US)
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Analysenzertifikate (COA)
Lot/Batch Number
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Kunden haben sich ebenfalls angesehen
Masaharu Kondo et al.
Biomacromolecules, 13(2), 432-438 (2012-01-14)
A polyhistidine (His) tag was fused to the C- or N-terminus of the light-harvesting (LH1)-α chain of the photosynthetic antenna core complex (LH1-RC) from Rhodobacter sphaeroides to allow immobilization of the complex on a solid substrate with defined orientation. His-tagged
Preparation and evaluation of poly (L-histidine) based pH-sensitive micelles for intracellular delivery of doxorubicin against MCF-7/ADR cells
Jia N, et al.
Asian Journal of Pharmaceutical Sciences , 12(5), 433-441 (2017)
Wooram Park et al.
Biomaterials, 33(34), 8848-8857 (2012-09-11)
For long-term, sustained protein delivery, a new, star-shaped block copolymer composed of methoxy poly(ethylene glycol) (mPEG), branched oligoethylenimine (bOEI), and poly(l-histidine) (pHis) was synthesized via the multi-initiation and ring-opening polymerization (ROP) of His N-carboxy anhydride (NCA) on bOEI with a
Rong Liu et al.
International journal of nanomedicine, 7, 4433-4446 (2012-08-28)
Two methoxyl poly(ethylene glycol)-poly(L-histidine)-poly(L-lactide) (mPEG-PH-PLLA) triblock copolymers with different poly(L-histidine) chain lengths were synthesized. The morphology and biocompatibility of these self-assembled nanoparticles was investigated. Doxorubicin, an antitumor drug, was trapped in the nanoparticles to explore their drug-release behavior. The drug-loaded
Electrochemical determination of ascorbic acid and paracetamol in pharmaceutical formulations using a glassy carbon electrode modified with multi-wall carbon nanotubes dispersed in polyhistidine
Dalmasso PR, et al.
Sensors and Actuators B, Chemical, 173(5), 732-736 (2012)
Artikel
Humankind has utilized protein materials throughout its existence, starting with the use of materials such as wool and silk for warmth and protection from the elements and continuing with the use of recombinant DNA techniques to synthesize proteins with unique and useful properties.
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Is this an oral product and if so, what is the recommended dose? If not, how is this product used?
1 answer-
Helpful?
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Hello, I am interested in your product Poly-L-histidine (P9386). Could you please confirm what terminal groups are present at both the N- and C-termini of this polymer?
1 answer-
This polymer has carboxyl and amino end groups. Further detailed studies have not been conducted.
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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What is this product's pKa?
1 answer-
The pKa value is not determined.
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