31 Results for "

positive charge

" in MedChemExpress (MCE) Product Catalog:
Products (31)

31 Results for "positive charge" in MCE Product Catalog:

5
5 Cited Publications
Cat. No.: HY-D0093
CAS No.: 61926-22-5
Synonyms: EthD-1
Ethidium homodimer (EthD-1) is a high-affinity fluorescent nucleic acid dye commonly used to stain mammals, bacteria, yeast, and fungi. Ethidium homodimer binds to DNA or RNA, enhancing fluorescence more than 30 times. The Ethidium homodimer has a strong positive charge, so it cannot cross cell membranes and stain living cells; But the Ethidium homodimer can cross the disordered region of the dead cell membrane to reach the nucleus and embed the DNA double strand to produce red fluorescence. Therefore, Ethidium homodimer is a relatively sensitive nucleic acid stain that can accurately detect nucleic acids in solution or in decomposing cells. Ethidium homodimer binds DNA, Ex/Em=528/617 nm .
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1
1 Cited Publications
Cat. No.: HY-139200
CAS No.: 104872-42-6
Purity:  ≥98.0%
Target:  

Liposome

Research Areas:  

Cancer

DOTMA is a cationic lipid that has been used as a non-viral vector for gene therapy. DOTMA is used as a component of liposomes to encapsulate siRNA, microRNA, and oligonucleotides and for in vitro gene transfection. DOTMA promotes effective interaction between liposomes and cell membranes by inducing positive charge on the liposomes. DOTMA showed good gene transfection effect both in vitro and in vivo .
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1
1 Cited Publications
Cat. No.: HY-D1428
CAS No.: 797785-10-5
Di-4-ANEPPDHQ is a polarity-sensitive membrane probe with a doubly positive charge that can be used to visualize membrane microdomains in living Arabidopsis cells. Di-4-ANEPPDHQ produces a fluorescence spectrum shift by changing the polarity of the lipid environment after embedding into the cell membrane, thereby quantifying the degree of lipid accumulation. The excitation wavelength of Di-4-ANEPPDHQ is 488 nm, and the emission wavelengths are 560 nm and 650 nm in the liquid ordered and disordered phases, respectively. Di-4-ANEPPDHQ is often used for fluorescence imaging studies of membrane microstructure, lipid order, and membrane tension response in living cells[1][2][3].
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1
1 Cited Publications
Cat. No.: HY-W127512
CAS No.: 546-18-9
Target:  

Drug Intermediate

Research Areas:  

Others

5β-Cholanic acid is a hydrophobic modifier used to modify polymer carriers. 5β-Cholanic acid can improve the acid stability, cell penetration efficiency and drug sustained release ability of nanocarriers, and optimize the oral effectiveness of delivered molecules. 5β-Cholanic acid can covalently bind to Glycol chitosan (GC) to form a GC-CA conjugate, which optimizes the hydrophobic anchoring ability of nanoparticles and enables them to be stably adsorbed on the surface of PLGA nanoparticles. Such nanoparticles can resist dissociation in the gastric acid environment and maintain positive charge to enhance endocytic uptake by intestinal epithelial cells (such as Caco-2 cells). 5β-Cholanic acid can be used in the development of drug delivery systems .
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1 Cited Publications
Cat. No.: HY-W342604
CAS No.: 5699-41-2
Synonyms: NAP
N-Acetylputrescine is a polyamine metabolite that regulates cell proliferation and signal transduction mainly by participating in polyamine acetylation modification. N-Acetylputrescine may reduce the positive charge of polyamines, affect protein-nucleic acid interactions, and promote cell growth. The concentration changes of N-Acetylputrescine can help disease diagnosis (such as early screening and efficacy evaluation of lung cancer) and microbial cell wall structure research. N-Acetylputrescine can be used as a potential biomarker for the progression of squamous cell carcinoma of the lung (SCCL) and Parkinson's disease (PD) .
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1
1 Cited Publications
Cat. No.: HY-113100
CAS No.: 18233-70-0
Purity:  ≥99.0%
N-Acetylputrescine hydrochloride is a polyamine metabolite that regulates cell proliferation and signal transduction mainly by participating in polyamine acetylation modification. N-Acetylputrescine hydrochloride may reduce the positive charge of polyamines, affect protein-nucleic acid interactions, and promote cell growth. The concentration changes of N-Acetylputrescine hydrochloride can help disease diagnosis (such as early screening and efficacy evaluation of lung cancer) and microbial cell wall structure research. N-Acetylputrescine hydrochloride can be used as a potential biomarker for the progression of squamous cell carcinoma of the lung (SCCL) and Parkinson's disease (PD) .
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Cat. No.: HY-130463
CAS No.: 268550-95-4
Purity:  99.23%
Synonyms: PG(16:0/18:1) sodium; 1-Palmitoyl-2-oleoyl-sn-glycero-3-phospho-(1'-rac-glycerol) sodium
POPG (sodium) is a negatively charged phospholipid. POPG (sodium) affects the interactions of membrane proteins with other molecules by changing the charge characteristics of the lipid environment. POPG (sodium) increases the apparent affinity of Gαq and Gβ1γ1 for activated NTS1. POPG (sodium) can interact with the positive charge of peptides. POPG sodium salt can be used in Parkinson's disease research .
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Cat. No.: HY-W134327A
CAS No.: 9015-73-0
Synonyms: Diethylaminoethyl dextran (MW 500000)
DEAE-Dextran (MW 500000) is a complex carbohydrate polymer consisting of glucose molecules linked by glycosidic bonds and modified with diethylaminoethyl (DEAE) groups. DEAE-Dextran is a cationic molecule that can be used as a transfection reagent to deliver nucleic acids such as DNA or RNA into cells. Its positive charge interacts with negatively charged cell membranes, facilitating the uptake of nucleic acids. DEAE-Dextran can also be used as an ion-exchange chromatography resin, allowing the separation and purification of biomolecules based on their charge.
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Cat. No.: HY-126437E
CAS No.: 25988-63-0
Poly-L-lysine hydrobromide (with a molecular weight of 15,000 - 30,000) is an amino acid polymer with positive charge, and it serves as a non-specific attachment factor for cells. Poly-L-lysine hydrobromide (with a molecular weight of 15,000 - 30,000) can be used for gene delivery and the construction of nano-delivery systems .
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Cat. No.: HY-W440823A
CAS No.: 474922-26-4
Synonyms: DSPE-PEG1000-NH2 ammonium
Target:  

Liposome

Research Areas:  

Cancer

DSPE-PEG1000-Amine (DSPE-PEG1000-NH2) ammonium is a 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-polyethylene glycol conjugate with a terminal amino group. DSPE-PEG1000-Amine ammonium can functionalize the surface of PLGA-lecithin-PEG core-shell nanoparticles to introduce positive surface charges. The amino group of DSPE-PEG1000-Amine ammonium can be converted into an aromatic aldehyde to react with the acetone-protected aromatic hydrazide on the surface of bovine carbonic anhydrase (BCA) molecules .
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Cat. No.: HY-D0215
CAS No.: 477-73-6
Synonyms: Safranine T
Safranin (Safranin T) is an important and classical phenazinium dye. Safranin has been extensively used in the academic field as a spectroscopic probe and indicator. Safranin possesses a planar structure and cationic charge. Safranin can readily intercalate into biological macromolecules, including DNA and proteins. Safranin has antibacterial effects against gram-positive bacteria (S. aureus). Safranin can be used as a redox indicator in the determination of metal ion concentration .
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Cat. No.: HY-W127620
CAS No.: 14933-08-5
Sulfobetaine-12is a zwitterionic surfactant, which means it has both positive and negative charges in its molecules. It is used as a detergent in various industries, including pharmaceuticals, cosmetics, and personal care products. Sulfobetaine-12Often used as a mild surfactant due to its non-irritating properties and ability to stabilize emulsions. Plus, it has antistatic properties that can be used to clean electronics and other static-prone surfaces.
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Cat. No.: HY-W043748
CAS No.: 38862-24-7
Synonyms: N-Succinimidyl acrylate
Research Areas:  

Others

2,5-Dioxopyrrolidin-1-yl acrylate (N-Succinimidyl acrylate) is a lysine residue modifier and coupling monomer. 2,5-Dioxopyrrolidin-1-yl acrylate covalently modifies the primary amines of lysine residues on monoclonal anti-horseradish peroxidase IgG antibodies, neutralizes positive charges and replaces them with low-affinity acrylate groups. 2,5-Dioxopyrrolidin-1-yl acrylate inhibits the formation of rapid hard coronas on citrate-coated gold nanoparticles, induces antibody unfolding and loss of antigen-binding function, but does not affect the antigen-binding function of antibodies in free solution. 2,5-Dioxopyrrolidin-1-yl acrylate reacts with the ε-amino groups on lysine residues of L-asparaginase, introduces vinyl groups and generates N-hydroxysuccinimide. 2,5-Dioxopyrrolidin-1-yl acrylate regulates the activity of L-asparaginase .
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Cat. No.: HY-D2826
FITC-Chitosan (MW 100000) is a chitosan (Chitosan) (HY-B2144A) labeled with FITC (HY-66019). FITC-Chitosan (MW 100000) combines the biological and physicochemical properties of chitosan (such as biocompatibility, positive charge, and nanoparticle-forming ability) with the fluorescent visibility of FITC (Ex/Em = ~485/535 nm) .
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Cat. No.: HY-W342604R
CAS No.: 5699-41-2
Synonyms: NAP (Standard)
N-Acetylputrescine (Standard) (NAP (Standard)) is the analytical standard of N-Acetylputrescine (HY-W342604). This product is intended for research and analytical applications. N-Acetylputrescine is a polyamine metabolite that regulates cell proliferation and signal transduction mainly by participating in polyamine acetylation modification. N-Acetylputrescine may reduce the positive charge of polyamines, affect protein-nucleic acid interactions, and promote cell growth. The concentration changes of N-Acetylputrescine can help disease diagnosis (such as early screening and efficacy evaluation of lung cancer) and microbial cell wall structure research. N-Acetylputrescine can be used as a potential biomarker for the progression of squamous cell carcinoma of the lung (SCCL) and Parkinson's disease (PD) .
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Cat. No.: HY-W127621
CAS No.: 15178-76-4
Sulfobetaine-8is a zwitterionic surfactant, which means it has both positive and negative charges in its molecules. It is used as a detergent in various industries, including pharmaceuticals, cosmetics, and personal care products. Sulfobetaine-8Often used as a mild surfactant because of its non-irritating and ability to stabilize emulsions. Plus, it has antistatic properties that can be used to clean electronics and other static-prone surfaces.
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Cat. No.: HY-W250194
CAS No.: 95144-24-4
Luviquat FC 550 is a cationic polymer commonly used in a variety of personal care and cosmetics. It is a viscous liquid containing quaternary ammonium groups which give it a positive charge. Luviquat FC 550 has a variety of properties suitable for these applications including its ability to provide conditioning, antistatic and film-forming properties to hair and skin. In addition, it is used as a binder in oral care products and as a flocculant in industrial water treatment.
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Cat. No.: HY-P3941
CAS No.: 309247-45-8
Target:  

Inhibitory Antibodies

Research Areas:  

Others

Ala-Arg-Arg-Pro-Glu-Gly-Arg-Thr-Trp-Ala-Gln-Pro-Gly-Tyr is a peptide. Ala-Arg-Arg-Pro-Glu-Gly-Arg-Thr-Trp-Ala-Gln-Pro-Gly-Tyr can easily be formed with more than one positive charge .
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Cat. No.: HY-113100R
CAS No.: 18233-70-0
N-Acetylputrescine hydrochloride (Standard) is the analytical standard for N-Acetylputrescine hydrochloride (HY-113100). This product is intended for research and analytical applications. N-Acetylputrescine hydrochloride is a polyamine metabolite that regulates cell proliferation and signal transduction mainly by participating in polyamine acetylation modification. N-Acetylputrescine hydrochloride may reduce the positive charge of polyamines, affect protein-nucleic acid interactions, and promote cell growth. The concentration changes of N-Acetylputrescine hydrochloride can help disease diagnosis (such as early screening and efficacy evaluation of lung cancer) and microbial cell wall structure research. N-Acetylputrescine hydrochloride can be used as a potential biomarker for the progression of squamous cell carcinoma of the lung (SCCL) and Parkinson's disease (PD) .
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Cat. No.: HY-178787S
Synonyms: PG(16:0/18:1)-d62; 1-Palmitoyl-2-oleoyl-sn-glycero-3-phospho-(1'-rac-glycerol)-d62
POPG-d62 (PG(16:0/18:1)-d62) is the deuterium labeled POPG (HY-142991). POPG sodium salt is a negatively charged phospholipid. POPG sodium salt affects the interactions of membrane proteins with other molecules by changing the charge characteristics of the lipid environment. POPG sodium salt increases the apparent affinity of Gαq and Gβ1γ1 for activated NTS1. POPG sodium salt can interact with the positive charge of peptides. POPG sodium salt can be used in Parkinson's disease research.
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