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Merck

SBR00036

Rhodamine B labeled Polymyxin B Ready Made Solution

For fluorescent microbial imaging, 1.1 mg/mL in water

別名:

SRB-PMB

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この商品について

NACRES:
NA.47
UNSPSC Code:
12352211

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concentration

1.1 mg/mL in water

lipid type

saturated FAs

storage temp.

−20°C

Quality Level

100

Analysis Note

  • Rhodamine B labeled polymyxin B Ready Made Solution is light sensitive.
  • It is recommended to avoid freeze-thaw cycles of Rhodamine B labeled polymyxin B Ready-Made Solution
  • Rhodamine B labeled polymyxin B Ready Made Solution (1.1mg/mL) can be diluted 1:100-200 in PBSX1 (Product# D8537) to achieve 0.55-1.1μg/mL final concentration for staining. The above concentration of Rhodamine B labeled polymyxin B was used for Escherichia coli staining (see image)
  • Fluorescence Microscopy application: Rhodamine B labeled polymyxin B Ready Made Solution excitation (Ex) wavelength is 550-560nm resulting in emission (Em) range of 580-610nm (λmax=590-600nm)

Application

Fluorescent antibiotics can be used for many applications including:
  • Antimicrobial resistance research.
  • Bacterial visualization and imaging.
  • Parent antibiotic mode of action research and new antibiotic discovery.
  • Toxicity studies.
  • Research of bacterial infections and tracking its uptake in vivo.

Additional possible applications for Rhodamine B labeled Polymyxin B:
  • Evaluate LPS binding by FRET (fluorescence resonance energy transfer) studies to form a specific complex between fluorescein (FITC)-tagged LPS and Polymyxin B, indicating direct binding of the antibiotic to the LPS
  • Can be applied as a fluorescent probe to study polymyxin mode of action and its pharmacokinetics
  • to assess the mitochondrial function of polymyxin B in a kidney cell line (LLC-PK1), suggesting that it changes the mitochondrial membrane polarization.

General description

Rhodamine B labeled polymyxin B (SRB-PMB) is a fluorescent derivative of Polymyxin B. Rhodamine B polymyxin B is an additional fluorescent derivative of Polymyxin B, along with Dansyl labeled polymyxin B (Product # SBR00029). Both products′ mode of action is in accordance with Polymyxin B activity. Fluorescent antibiotics are obtained by synthetic conjugation of an antibiotic to a fluorophore.

保管分類

12 - Non Combustible Liquids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

適用法令

試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。

SBR00036-VAR: + SBR00036-BULK: + SBR00036-0.5ML: + SBR00036-0.5ML-PW:

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P R Schindler et al.
Antimicrobial agents and chemotherapy, 8(1), 95-104 (1975-07-01)
Though the primary action of the cationic antibiotic polymyxin B is against the membrane of susceptible bacteria, severe morphological changes are detected in the cytoplasm. Using fluorescence microscopy and a mono-N-dansyl-polymyxin B derivative, we could demonstrate aggregations of the antibiotic
Vincent H Tam et al.
Antimicrobial agents and chemotherapy, 49(9), 3624-3630 (2005-08-30)
Despite limited data, polymyxin B (PB) is increasingly used clinically as the last therapeutic option for multidrug-resistant (MDR) gram-negative bacterial infections. We examined the in vitro pharmacodynamics of PB against four strains of Pseudomonas aeruginosa. Clonal relatedness of the strains
R E Hancock
Lancet (London, England), 349(9049), 418-422 (1997-02-08)
The era of the "classical antibiotic" may be over. The emergence of resistance has seen to that. Yet no truly novel class of antibacterial agent has come on the market in the past 30 years. Currently there is great interest
M E Evans et al.
The Annals of pharmacotherapy, 33(9), 960-967 (1999-09-24)
Polymyxin B sulfate and colistin, also known as colistimethate, have not been used for many years because less toxic antimicrobials are available. Gram-negative bacteria that are resistant to the aminoglycosides, beta-lactams, and fluoroquinolones are becoming more common. These bacteria are

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