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Solutions of High-performance Molecular Probes-1


1. Molecular probes for lipid droplets

Lipid droplets (LDs) are composed of a chemical substance called "lipids". Lipid droplets are storage organelles in the center of lipid and energy homeostasis. They have a unique structure composed of a hydrophobic core of neutral lipids, which is surrounded by a phospholipid monolayer modified by a specific set of proteins. Due to the diversity of lipid droplet functions, their abnormalities are associated with many pathological states.

Cat. No.

Product

Introduction

GC40165

C11 BODIPY 581/591

Ratio fluorescence indicator for lipid oxidation

GC42959

BODIPY 493/503

A green fluorescent probe widely used for lipid droplet labeling.

GC42960

BODIPY 505/515

A green fluorescent probe widely used for lipid droplet labeling.

GC42961

BODIPY 558/568 C12

Red neutral lipid droplet fluorescent probe

GC15539

Nile Red

Red neutral lipid droplet fluorescent probe

GC25676

Oil Red O

Commonly used tissue staining dyes can identify cholesterol esters.

Application Cases

208-1

Figure 1. The lipid ROS levels of the target cells were detected using flow cytometry and C11 BODIPY 581/591.

Cells 11.22 (2022) 3580.

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Figure 2. Detection of lipid reactive oxygen species levels using BODIPY 581/591 C11 dye

Plos one 17.11 (2022)e0276083.

2. Molecular probes for cytomembrane

DiD, DiO, Dil and DiR are a group of lipophilic fluorescent dyes, mainly used for labeling cell membranes and other lipid-soluble biological structures. When these dyes bind to the cell membrane, their fluorescence intensity significantly increases. This is because they have high quenching constants and excited state lifetimes. Using appropriate concentrations, these dyes can uniformly stain the entire cell membrane. Each dye has its unique fluorescence color: Dil produces orange fluorescence, DiO produces green fluorescence, DiD produces red fluorescence, and DiR produces dark red fluorescence. This color difference makes them very suitable for multi-color imaging and flow cytometry analysis of living cells. The fluorescence of Dil and DiO can be observed through standard FITC and TRITC filters. The fluorescence of DiD can be excited by a 633 nm He-Ne laser, with its excitation and emission wavelengths being longer than those of Dil, making it more important in cell and tissue staining. The infrared fluorescence of DiR can penetrate cells and tissues, so it is often used for tracing in live imaging.

Cat. No.

Product

Ex/Em(nm)

Introduction

GC19515

DiO(DiOC18(3))

484/510

Lipophilic fluorescent probe

GC33425

DiI (DiIC18(3))

550/567

Lipophilic fluorescent probe

GC30543

DiD perchlorate

644/663

Lipophilic fluorescent probe

GC35773

Cy7 DiC18(DiR )

748/780

Near-infrared fluorescent dye

Application Cases

208-3

Figure 3. Precisely identifying the DiR-labeled multipotent cells in the liver and spleen at different time points

World J Gastroenterol. 2012 Feb 14; 18(6): 507–516.

208-45

Figure 4. Image of cells labeled with DID and DiO

3. Molecular probes for cell nucleus

Cat. No.

Product

Introduction

GC14228

Propidium Iodide

Fluorescent probes used for identifying

dead cells.

GC43378

DAPI (hydrochloride)

Fluorescent DNA probe

GC10939

Hoechst 33342 trihydrochloride

Fluorescent DNA probe

GC12187

Hoechst 33258 trihydrochloride

Fluorescent DNA probe

GC36247

Hoechst 34580 tetrahydrochloride

Fluorescent DNA probe

GC33577

7-Aminoactinomycin D (7-AAD)

Fluorescent DNA probe

GC12913

Acridine Orange hydrochloride

Fluorescent nucleic acid dyes that can

penetrate cells.

GC30066

NucPE1 (Nuclear Peroxy Emerald 1)

Nuclear localization fluorescent hydrogen

peroxide probe.

GC36238

HOE 32021

An intracellular DNA dye.

GC26442

SYTO 9 Green Fluorescent Nucleic

Acid Stain(5mM in DMSO)

It is a green fluorescent cell nucleus and

chromosome counterstain.

GC30149

Pyronin Y (Pyronine G)

The targeting involves cellular structures

including RNA, DNA and organelles.

GC64792

TO-PRO 1

DNA-binding fluorescent dyes are used as

fluorescent dyes for necrotic cells.

Application Cases

208-6

Figure 5.  DAPI Detection Kit was used for TUNEL staining.

Life Sciences,Volume 271, 15 April 2021, 119199

208-7

Figure 5. The Hoechst33342 was used to stain the nuclei.

Int J Mol Sci. 2023 May; 24(10): 8719.

4. Molecular probes for mitochondrion

Cat. No.

Product

Introduction

GC12331

JC-1

It is widely used for detecting mitochondrial

membrane potential.

GC26229

Mito-Tracker Green

Mito-Tracker Green is a green fluorescent

mitochondrial dye.

GC50454

MitoMark Red I

MitoMark Red I is a red fluorescent marker

for mitochondria.

GC68230

MitoSOX Red 

A novel fluorescent probe specifically targeting

mitochondria in living cells.

GC15795

Rhodamine 123

Rhodamine dyes can bind to mitochondria and

produce bright fluorescence.

GC30090

Rhodamine 6G

Rhodamine dyes can bind to mitochondria and

produce bright fluorescence.

GC19476

Tetramethylrhodamine methyl

ester (perchlorate)

Rhodamine dyes can bind to mitochondria and

produce bright fluorescence.

GC30591

Rhodamine 800

Rhodamine dyes can bind to mitochondria and

produce bright fluorescence.

GC38730

2-Di-1-ASP 

Extensively used as fluorescent probes for mitochondrial

staining and groove binding of double-stranded DNA.

GC30183

Acridine Orange 10-Nonyl Bromide

(Nonylacridine orange)

Fluorescent probe for phosphatidylcholine

(λex: 489 nm, λem: 525 nm).

Application Cases

208-8

Figure 6. Mitochondrial morphology was detected by MitoTracker Red.

J. Agric. Food Chem. 2021, 69, 45, 13557-13567

5. Molecular probes for other cell structure

Cat. No.

Product

Introduction

Endoplasmic reticulum

GB30171

ER-Tracker Blue-White DPX

A blue fluorescent dye with high selectivity 

for endoplasmic reticulum.

GC64788

ER-Tracker Green

A green fluorescent dye with high selectivity 

for endoplasmic reticulum.

GB30168

ER-Tracker Red

A red fluorescent dye with high selectivity

for endoplasmic reticulum.

Golgi complex

GC19881

Golgi-Tracker Red

A red fluorescent dye with high selectivity

for Golgi complex.

GC43096

C6 NBD Ceramide (d18:1/6:0)

A green fluorescent dye with high selectivity

for Golgi complex.

Lysosome

GC19882

Lyso-Tracker Red

A red fluorescent dye with high selectivity

for lysosome.

GC20101

Lyso-Tracker Green

A green fluorescent dye with high selectivity

for lysosome.

GC64677

Green DND-26

Green DND-26 is a green fluorescent dye

for lysosomes.

Cellular skeleton

GC19997

FITC-Phalloidin

FITC-Phalloidin is a green fluorescent probe with high

affinity and selectivity for filamentous actin (F-actin).

GC18292

TRITC Phalloidin

TRITC-Phalloidin is a fluorescent probe for the

orange-red form of F-actin.

GC50523

Phalloidin-TFAX 488

Green fluorescent cytoskeletal staining,combined with actin.

Application Cases

208-9

Figure 7. CLSM images show the co-localization of CRT and ER (ER-Tracker Green).

https://doi.org/10.1002/adfm.202214998