The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We have developed a label-free fluorescence sensor for caffeic acid (CA) by the use of CdTe:Zn2+ quantum dots (CdTe:Zn2+ QDs) as an output signal. The principle of sensor is based on the fluorescence quenching and binding properties of Fe2+ toward QDs and CA, respectively. To provide a fluorescence turn-on mode for CA detection, Fe2+ is first mixed with QDs solution, leading to a low fluorescence...
In this article, a new mode of droplets manipulation is presented and applied for simultaneous multiplexed DNA detection. We call this droplets manipulation, “assembly-line manipulation of droplets (ALMD)”. Firstly, multiple droplets containing the same target mixtures are generated in the microchannel, and then fused with later generated different droplets containing corresponding probes, respectively...
A novel intrinsic fluorescence method for the direct determination of l-phenylalanine, l-tyrosine, and l-tryptophan in human plasma is presented. By using fluorescence excitation–emission–pH–sample data array in combination with four-way calibration method based on the quadrilinear component model, the proposed approach successfully achieved quantitative analysis of the aromatic amino acids in human...
We have developed a new fluorescence method for specific single-stranded DNA sequences with exonuclease III (Exo III) and nucleic acid dye SYBR Green I. It is demonstrated by a reverse transcription oligonucleotide sequence (target DNA, 27 bases) of RNA fragment of human immunodeficiency virus (HIV) as a model system. In the absence of the target DNA, the hairpin-probe is in the stem-closed structure,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.