404 Results for "

phosphate buffer

" in MedChemExpress (MCE) Product Catalog:
Products (404)

404 Results for "phosphate buffer" in MCE Product Catalog:

Cat. No.: HY-Y0286
CAS No.: 506-87-6
Synonyms: Hartshorn salt, 99%
Ammonium carbonate (Ammonium carbonate), 99% is a solid amino compound that functions as a buffer, pH regulator, pore-forming agent, and electrocatalytic oxidation substrate. Ammonium carbonate, 99% is a GRAS-grade direct food additive with no restricted daily intake specified by FAO/WHO, and it shows no acute skin toxicity, clinical signs of toxicity, or effects on body weight in rats. Ammonium carbonate, 99% undergoes electrocatalytic oxidation in alkaline solutions with a Pt/C catalyst (carbonate adsorption interferes with activity). Ammonium carbonate, 99% can serve as a fuel for low-temperature polymer fuel cells and anion exchange membrane fuel cells (with performance superior to pure ammonia), and can also form pores in the carrier-free Pt cathode catalyst layer after low-temperature decomposition, thereby enhancing catalyst activity under low-humidity conditions and the performance of proton exchange membrane fuel cells .
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Cat. No.: HY-D3119
CAS No.: 2246946-49-4
Research Areas:  

Others

MitoAIE1 is a Fluorescent probe for mitochondrial viscosity detection. MitoAIE1 contains a pyridinium structural unit, which endows it with mitochondria-targeting specificity. The detection mechanism of this probe is based on aggregation-induced emission (AIE): in low-viscosity media such as PBS buffer, intramolecular rotation leads to non-radiative energy dissipation, resulting in only weak fluorescence; however, in high-viscosity environments such as the mitochondrial matrix or the vicinity of the inner mitochondrial membrane, such intramolecular motion is restricted, thereby significantly enhancing its fluorescent signal; in addition, this probe is not interfered by changes in microenvironment polarity and pH. Its emission wavelength is 625 nm, with absorption peaks at 325 nm and 450 nm; when transferred from low-viscosity PBS to high-viscosity 99% glycerol, its fluorescence intensity at 625 nm can be increased by 38-fold. It can be used to monitor changes in mitochondrial viscosity during processes such as Stauroporine (HY-15141)-induced apoptosis and starvation-induced mitophagy in live cells, and has good biocompatibility .
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Cat. No.: HY-134096
CAS No.: 78323-98-5
Synonyms: DNS-M
Target:  

Fluorescent Dye

Research Areas:  

Others

Dansyl-morpholine (DNS-M) is a Fluorescent probe for lipid droplet imaging, cancer cell discrimination, and real-time tracking of lipid droplet dynamics. As a solvatochromic probe with a donor-π-acceptor structure, it relies on hydrophobic interaction for its mechanism of action: its good lipophilicity, confirmed by an oil-water partition coefficient LogP = 2.35, allows it to rapidly penetrate cell membranes, and it specifically localizes to the hydrophobic core of lipid droplets; its fluorescence is strongly enhanced in the nonpolar environment of lipid droplets, while it emits very weak fluorescence in polar environments like PBS buffer, and it exhibits a bathochromic shift in emission wavelength with increasing solvent polarity. It has negligible cytotoxicity, with cell viability remaining over 95% after 24-hour incubation with 100 μM of the probe, and it possesses excellent photostability, retaining over 97% of initial fluorescence intensity after 60 continuous laser scans. For cell imaging applications, its excitation/emission wavelengths for lipid droplet labeling are Ex/Em = 405/480−540 nm, and in a simulative lipid environment O/W emulsion, it has an excitation wavelength of ~346 nm and emission wavelength of ~500 nm, giving a Stokes shift of 154 nm[1].
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Cat. No.: HY-D0186R
CAS No.: 951-78-0
2'-Deoxyuridine (Standard) is the analytical standard of 2'-Deoxyuridine. This product is intended for research and analytical applications. 2’-deoxyuridine is a brain-penetrant pyrimidines nucleotide that is associated with nervous system diseases. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. 2'-Deoxyuridine is a precursor in the synthesis of Edoxudine (HY-B1011) and also an analogue of 5-ethynyl-2'-deoxyuridine, EdU (HY-118411). 2’-deoxyuridine reduces microglial activation and improve oxidative stress damage by modulating glycolytic metabolism on the Aβ25-35-induced brain injury, which is promising for research of Alzheimer’s disease (AD) . In Vitro:The interaction between the 2-deoxyuridine and the column increases the duration of retention of 2-deoxyuridine .
Gradient elution with sodium acetate buffer-ACN eluent on two ZIC-HILIC homemade columns separates 2-deoxyuridine in under 9 min .
In Vivo:2'-Deoxyuridine (34.42 ng/mL, gavage, 15 min) passes the blood-brain barrier (BBB) to enter the hippocampus of mice brain .
2'-Deoxyuridine (20 mg/kg, gavage, daily for 4 weeks) improves cognition and memory loss and attenuates the damage to the hippocampus in Aβ25-35-induced mice model .
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