102 Results for "

charge

" in MedChemExpress (MCE) Product Catalog:
Products (102)

102 Results for "charge" in MCE Product Catalog:

88
88 Publications Verification
Cat. No.: HY-D0041
CAS No.: 148504-34-1
Synonyms: Calcein acetoxymethyl ester
Calcein AM, has cell membrane permeability and can easily enter the cell. Calcein AM has no fluorescence and is hydrolyzed by endogenous esterase in the cell to produce polar molecule Calcein (Calcein), which has strong negative charge and cannot permeate the cell membrane. Calcein can emit strong green fluorescence, so it is often used with Propidium Iodide for cell viability/virulence detection, excitation/emission wavelength: 494/515 nm .
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9
9 Cited Publications
Cat. No.: HY-17567
CAS No.: 9005-49-6
Heparin is a highly sulfated glycosaminoglycan,that is widely used as an injectable anticoagulant, and has the highest negative charge density of any known biological molecule. Heparin significantly inhibits exosome-cell interactions.
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9
9 Cited Publications
Cat. No.: HY-W250110
CAS No.: 9002-98-6
Polyethylenimine (branched) (30% in water) is a organic macromolecule with high cationic-charge-density potential. Polyethylenimine (branched) (30% in water) can ensnare DNA as well as attach to cell membrane. Polyethylenimine (branched) (30% in water) also retains a substantial buffering capacity at virtually any pH. Polyethylenimine (branched) (30% in water) is widely used as transfection reagent .
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6
6 Cited Publications
Cat. No.: HY-D0722
CAS No.: 124387-19-5
Synonyms: 5-(6)-Carboxyfluorescein diacetate; CFDA
5(6)-CFDA is a common aliphatic luciferin-line organism. CFDA conducts free diffusion into cells, and then it is hydrolyzed into carboxyl fluorescein (CF) by intracellular non-specific lipase. CF containing portion contains an additional negative charge so that it is better retained in cells, compared to fluorescein dyes .
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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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3
3 Cited Publications
Cat. No.: HY-D0047
CAS No.: 79955-27-4
Synonyms: 5-Carboxyfluorescein diacetate
5-CFDA is a common aliphatic luciferin-line organism. CFDA conducts free diffusion into cells, and then it is hydrolyzed into carboxyl fluorescein (CF) by intracellular non-specific lipase. CF containing portion contains an additional negative charge so that it is better retained in cells, compared to fluorescein dyes .
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2
2 Cited Publications
Cat. No.: HY-W099581
CAS No.: 14933-09-6
Synonyms: SB3-14; DMAPS
Zwittergent 3-14 (DMAPS) is a zwitterionic detergent commonly used in biochemistry and molecular biology for the solubilization and purification of membrane-bound proteins and other hydrophobic biomolecules, which have both hydrophilic and hydrophobic moieties , so that it has good detergency properties, making it suitable for stabilizing membrane proteins in aqueous solutions. In addition, DMAPS has been used in various techniques such as electrophoresis and chromatography for the separation and analysis of biomolecules. The long The hydrocarbon chains provide it with good membrane penetration and solubilization capabilities, while the sulfonate and quaternary ammonium groups ensure water solubility and charge neutrality.
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1
1 Cited Publications
Cat. No.: HY-139200
CAS No.: 104872-42-6
Purity:  ≥98.0%
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
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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1
1 Cited Publications
Cat. No.: HY-W127832
CAS No.: 123148-15-2
Ru(dpp)3(PF6)2 is a ruthenium (II) polypyridine complex and oxygen-sensing luminophore with excellent photostability and bright orange emission properties based on metal-to-ligand charge transfer (MLCT). Ru(dpp)3(PF6)2 undergoes oxygen-induced collisional luminescence quenching following the Stern-Volmer relationship, and can also engage in Förster-type resonance energy transfer with closed-form BTF6. Featuring excellent photophysical and electrochemical properties, Ru(dpp)3(PF6)2 is applied in studies on quenching-type oxygen sensors based on fluorinated ORMOSIL/xerogels and solid-state light-emitting devices .
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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 1γ1 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-Y0316B
CAS No.: 151-21-3
Synonyms: Sodium lauryl sulfate for electrophoresis; Laurylsulfuric acid sodium salt for electrophoresis
Sodium dodecyl sulfate for electrophoresis is a high purity sodium dodecyl sulfate (SDS) with a minimum purity of 98.5%. It is an anionic detergent commonly used in electrophoretic procedures to denature and impart a negative charge to proteins, allowing separation based on size and charge. Sodium dodecyl sulfate for electrophoresis has unique chemical properties that make it an effective ingredient in many laboratory applications, helping to improve the resolution and sensitivity of protein analysis.
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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-W614269
CAS No.: 306776-79-4
Research Areas:  

Cancer

DOTA-GA(tBu)4 stabilizes the attachment of radiometals to ligands. DOTA-GA(tBu)4 improves the biodistribution of radiolabeled second-generation Affibody molecules by increasing their net negative charge and reducing hepatic uptake, leading to enhanced tumor-to-blood and tumor-to-liver ratios. DOTA-GA(tBu)4 targets HER2>-expressing breast and gastrointestinal cancer .
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Cat. No.: HY-W068119A
CAS No.: 134272-64-3
Synonyms: 2-Maleimidoethylamine hydrochloride
N-(2-Aminoethyl)maleimide (2-Maleimidoethylamine) hydrochloride is a selective covalent binding agent for thiol groups (RSGs), covalently binding to thiols via an irreversible thioether bond to prepare MMP-2-sensitive nanosystems. Under near-neutral conditions, the maleimide group in N-(2-Aminoethyl)maleimide hydrochloride binds to thiol groups via a nucleophilic addition reaction, and can be used to modify polymers or biological interfaces, enhancing mucosal adhesion and regulating the surface charge of biological interfaces. N-(2-Aminoethyl)maleimide hydrochloride can optimize the adhesion performance of drug delivery carriers and cell interactions with biological interfaces, and is applied in transmucosal drug delivery systems (such as drug carriers for oral and bladder sites) and biomaterial surface engineering research, providing support for tissue implantation, regeneration, and related drug delivery .
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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-DY1036
CAS No.: 148504-34-1
Calcein AM (solution) , has cell membrane permeability and can easily enter the cell. Calcein AM has no fluorescence and is hydrolyzed by endogenous esterase in the cell to produce polar molecule Calcein (Calcein) , which has strong negative charge and cannot permeate the cell membrane. Calcein can emit strong green fluorescence, so it is often used with Propidium Iodide for cell viability/virulence detection, excitation/emission wavelength: 494/515 nm .
Solvent and concentration: DMSO: 2 mM
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