Golgi Apparatus Dyes

RhoNox-1 is a fluorescent probe for the specific detection of divalent iron ions, and when RhoNox-1 reacts with Fe²⁺. RhoNox-1 can generate an irreversible orange (red) fluorescent product (Ex/Em：540/575 nm) . FeRhoNox-1 can enter the cell well, suitable for the detection of Fe²⁺ in living cells, and tends to be localized in the Golgi apparatus.

The Golgi apparatus is composed of flattened vesicles superimposed on each other by unit membranes. The flattened vesicles are round with expanded and perforated edges. The Golgi fluorescent probe is a BODIPY-labeled ceramide derivative, the synthesis of which occurs in the endoplasmic reticulum and can then be transported to the Golgi via ceramide transport protein (CERT) or vesicular translocation, allowing specific labeling of the dye. BODIPY Fl C5-Ceramide is a Golgi-specific green fluorescent dye, which can visualise individual cells. Ex/Em= 505 nm/512 nm.

Gol-NTR is a Golgi-targetable probe with high selectivity and sensitivity. Gol-NTR is Nitroreductase (NTR)-activated and has visualization acute lung injury (ALI) and repair function. Gol-NTR has a low detection limit of 54.8 ng/mL. Gol-NTR can be used for the research for monitoring and assessing research response of sepsis-induced ALI.

NRGolgi is a Nile Red-based solvatochromic fluorescent probe targeted to the Golgi apparatus. NRGolgi localizes selectively to the Golgi membrane via its myristic acid group, and leverages the property of its emission wavelength undergoing blue/red shift with local polarity to quantitatively detect the lipid order of the Golgi membrane in living cells using dual-emission ratiometric imaging (550-600 nm / 600-650 nm). NRGolgi is suitable for real-time monitoring of Golgi lipid order under conditions of oxidative stress, mechanical stress, and altered cholesterol metabolism.

Gol-SiRhoNox is a Golgi apparatus-targeted fluorescent probe with high selectivity for Fe (II), with a limit of detection of 50 nM. Gol-SiRhoNox integrates a myristoyl motif for Golgi apparatus targeting and a silicon-fused rhodamine N-oxide as the Fe (II)-sensitive moiety. Gol-SiRhoNox is non-fluorescent in its native state; Fe (II)-mediated deoxygenation of the N-oxide triggers fluorescence recovery. Its fluorescent product, Gol-SiR, has excitation/emission wavelengths of 630/665 nm and a maximum absorption wavelength of 655 nm.

NIR-fluorescent ceramide is a neutral near-infrared (NIF) fluorescent probe (λ_em=650 nm) based on the C-bridged nitrobenzoxadiazole SCOTfluor core, which enables visualization of lipid metabolic processes such as sphingolipid trafficking. The emission signal of NIR-fluorescent ceramide increases significantly in liposomal environments. NIR-fluorescent ceramide acts as an intracellular trafficking tracer, localizing to regions surrounding the endoplasmic reticulum and Golgi apparatus within a short period, and then translocating to recycling lysosomes over a longer period, thus enabling real-time visualization of sphingolipid trafficking and biological lipid functions in living cells. NIR-fluorescent ceramide also generates metabolic uptake profiles and provides multiple metabolic readouts in human cancer cell lines.

Golgi-P is a near-infrared Golgi-targeted fluorescent probe specifically used for the detection of Golgi polarity in living cells and living tissues. Golgi-P exhibits a significant polarity-dependent spectral behavior, with its emission wavelength shifting redward with polarity (Ex/Em: 700 nm/780-825 nm). Golgi-P achieves near-infrared fluorescence imaging directly in the brain tissue of depressed mice. Golgi-P combines polarity sensing with Golgi-targeting functionality, providing a new tool for the molecular diagnosis of depression.

AIE-GA is a Golgi apparatus (GA) fluorescent probe (green channel: λex = 405 nm, λem = 500-700 nm). AIE-GA has a favourable binding ability to interact with COX-2. AIE-GA binds to the cyclooxygenase catalytic site of COX-2.