Unlock instant, AI-driven research and patent intelligence for your innovation.
A kind of method and application of preparing red and green light dual emission carbon dots
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A dual-emission, green-light technology, applied in the chemical field, can solve problems such as cumbersome processes, and achieve the effects of good selectivity, good biocompatibility, and high sensitivity
Active Publication Date: 2021-03-05
LANZHOU UNIVERSITY
View PDF2 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Usually, the synthesis of traditional ratiometric fluorescent probes requires the chemical or physical combination of two materials with different fluorescence emission wavelengths, which is a cumbersome process.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] (1) Synthesis of RGDE CDs
[0034] Add 0.1g of 2,5-diaminotoluene sulfate and 1mL of absolute ethanol into a 20mL reaction kettle, react at 150°C for 12h, cool to room temperature, add 20mL of water to dilute, centrifuge at 12000r / min for 10min, and the supernatant is ready for RGDE CDs. Finally, the RGDE CDs solution was removed and stored in a refrigerator at 4°C for future use.
[0035] (2) The structure and morphology of RGDE CDs were characterized by TEM, XPS, FT-IR and other methods.
[0036] (3) The photobleaching resistance, thermal stability, salt tolerance and fluorescence intensity at different pH values of RGDE CDs were investigated. Determine the measurement conditions and establish a ratiometric detection of OONO - new method of fluorescence.
[0037] (4) Detection of OONO by ratio method -
[0038](a) Add 30.0 μL RGDE CDs solution and 2.90 mL 10 mM Tris-HCl (pH=7.4) buffer solution into a centrifuge tube; add 70 μL of different concentrations of O...
Embodiment 2
[0055] Synthesis of RGDE CDs
[0056] Add 0.1g of 2,5-diaminotoluene sulfate and 0.5mL of absolute ethanol into a 20mL reaction kettle, react at 120-180°C for 12h, cool to room temperature, add 20mL of water to dilute, centrifuge at 12000r / min for 10min, and The supernatant is RGDE CDs. Finally, the RGDE CDs solution was removed and stored in a refrigerator at 4°C for future use.
Embodiment 3
[0058] Add 0.1g of 2,5-diaminotoluene sulfate and 2mL of absolute ethanol into a 20mL reaction kettle, react at 120-180°C for 12h, cool to room temperature, add 20mL of water to dilute, centrifuge at 12000r / min for 10min, and the supernatant The solution is RGDE CDs. Finally, the RGDE CDs solution was removed and stored in a refrigerator at 4°C for future use.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
In the present invention, water-soluble red / green dual emission carbon dots (RGDE CDs) were synthesized in one step using 2,5-diaminotoluene sulfate as a carbon source. Compared with existing methods, this method avoids the multi-step material preparation process. The RGDE CDs prepared by this method have excellent photobleaching resistance, good biocompatibility and low cytotoxicity. Under a single excitation wavelength, the green fluorescence (525nm) intensity of RGDE CDs was increased by adding OONO ‑ After being quenched, the intensity of red fluorescence (603nm) basically does not change. On this basis, the present invention has set up a kind of ratio method to measure OONO ‑ new method of fluorescence.
Description
technical field [0001] The invention belongs to the field of chemistry, and in particular relates to a method for preparing red / green double-emitting carbon dots (RGDE CDs) in one step and an application thereof. Background technique [0002] Carbon dots (CDs) are discrete nanoparticles with a near-spherical structure, usually less than 10 nm in size, with photoluminescent properties. Since CDs were prepared by researchers using the arc discharge method in 2004, CDs have been used in analysis, detection, Bioimaging, photodynamic therapy, and photocatalysis have been widely used in fields such as carbon nanomaterials that have attracted much attention. [0003] Most of the CDs reported so far have short fluorescence emission wavelengths, poor tissue penetration, and large background interference of biological tissues, which limits their application in biological imaging and other aspects. The energy of red light is low, and the background interference of biological tissues ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More