IP Library › Granted Patent US 10,113,968
Granted Patent B2
US 10,113,968 · App. 15/100,707 · Granted Oct 30, 2018

Specific detection and quantification of cardiolipin and isolated mitochondria by positively charged AIE fluorogens and method of manufacturing thereof

Inventors: Benzhong Tang (Hong Kong, CN); Yuning Hong (Hong Kong, CN); Wai Tung Leung (Hong Kong, CN)
Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
G01N21/6458G01N21/6428G01N33/483
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Quick Facts
Patent No.
US 10,113,968
App. No.
15/100,707
Granted
Oct 30, 2018
Kind
B2
Abstract

The present subject matter relates to a one-step method of detecting and quantifying cardiolipin in a sample using a positively charged AIE luminogen by introducing the AIE luminogen to a solution containing the sample and measuring fluorescence intensity of the solution; a method of quantifying isolated mitochondria using a positively charged AIE luminogen by staining a sample containing isolated mitochondria with the AIE luminogen and measuring the fluorescence intensity; and a method of quantifying isolated mitochondria using a positively charged AIE luminogen by introducing the AIE luminogen to a sample containing isolated mitochondria, wherein the AIE luminogen stains the isolated mitochondria and identifying the stained isolated mitochondria under microscope. With improved sensitivity and excellent selectivity to CL over other major mitochondrial membrane lipids, an aggregation-induced emission-active fluorogen, TTAPE-Me, may serve as a valuable fluorescent sensor for CL detection and quantification and the quantification of isolated mitochondria.

Claims (13)

1. A one-step method of detecting and quantifying cardiolipin in a sample using a positively charged aggregation induced emission (AIE) luminogen comprising:

introducing the AIE luminogen to a solution containing the sample; and

measuring fluorescence intensity of the solution, wherein

the AIE luminogen binds to cardiolipin in vesicles and comprises a structure having a formula of

2. The method of claim 1 , wherein the AIE luminogen binds negatively charged cardiolipin solely by electrostatic interaction.

3. A method of quantifying isolated mitochondria using a positively charged AIE luminogen comprising:

staining a sample containing isolated mitochondria with the AIE luminogen; and

measuring the fluorescence intensity wherein the AIE luminogen comprises a structure having a formula of

4. The method of claim 3 , wherein the quantified isolated mitochondria is from Saccharomyces cerevisiae strain YPH 500 of yeast.

5. A method of quantifying isolated mitochondria using a positively charged AIE luminogen comprising:

introducing the AIE luminogen to a sample containing isolated mitochondria, wherein the AIE luminogen stains the isolated mitochondria; and

identifying the stained isolated mitochondria under microscope wherein the AIE luminogen comprises a structure having a formula of

6. The method of claim 5 , wherein the quantified isolated mitochondria is from Saccharomyces cerevisiae strain YPH 500 of yeast.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 2, 2016
From: TANG, BENZHONG; HONG, YUNING; LEUNG, WAI TUNG
To: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Reel/Frame 038778/0210 →
Continuity (2)
Provisional Application 61963393 · Dec 3, 2013
Related Publication 20160299078A1 · Oct 13, 2016