Introduction to Fluorescence Wavelength

The results showed that the relative fluorescent intensities decreased and the maximum fluorescence wavelength increased as the pyrolysis temperature increase.

The maximum fluorescence wavelength of the intrinsic fluorescence also changed significantly when compared with the control.

Piezochromic organic materials that present a large difference in fluorescence wavelength in the near-infrared region have important potential applications; however, few such metal-free luminophores have been reported.

We also employed quantum chemical calculations of the frontier molecular orbitals to show that the luminescence of ICG was mainly derived from the polymethine conjugation system, and the naphthalenyl rings at both ends had little effect on the UV–vis absorption and fluorescence wavelengths.

The effects of substituents X and Y on the fluorescence wavelengths were analyzed in detail.

The increase in the analytical signal of the surfactant and the shift in the position of the fluorescence wavelengths maximum with increasing contribution of the role of electrostatic interactions between the reagent particle and the ionic surfactant have been shown.

Herein, an activatable near-infrared fluorescent probe (HC–NO2) derived from a hemicyanine fluorophore was designed and developed based on two evaluation factors, including the calculated partition coefficient (Clog P) and fluorescence wavelength.

Vertical absorption and fluorescence transitions are characterized as intramolecular charge transfer and maximum absorption and fluorescence wavelengths show that by changing the π-bridge to the imidazole C2, we can tune fluorescence color from cyan to orange.

Vertical absorption and fluorescence transitions are characterized as intramolecular charge transfer and maximum absorption and fluorescence wavelengths show that by changing the π-bridge to the imidazole C2, we can tune fluorescence color from cyan to orange.

The local temperature of the quantum dot can be determined by monitoring the shift in its fluorescence wavelength resulting from the dilatation of the lattice with increasing temperature.

The resolution of the recovered images by BPPSIM has been increased to 1/8 of the fluorescence wavelength, which is 2.

Hela cells labeled with red and green fluorescent proteins and Pseudomonas with fluorescence wavelengths of 610 nm, 509 nm and 450 nm, respectively, are inspected.

We also confirmed these results using an independent detection mechanism developed previously by our group, incorporating a polarity-dependent fluorescent dye into the scFv and reading out EGFR binding based on fluorescence wavelength shifts.

It is shown that, for athermal operation, the value of the pump wavelength of the laser must exceed the value of the mean fluorescence wavelength of the RE laser active ions doped in the laser medium.

Admittedly, however, the connection between Ce3+ ions and Type I emission is not immediate, as Type I spectra do not display a visible zero-phonon line (ZPL) near 489 nm, and their peak fluorescence wavelengths are heterogeneously distributed over a broad range.

This probe is able to sense both the mitophagy initiation triggered by peroxynitrite and lysosome fusion at different fluorescence wavelengths.

These fluorescent Lyocell fibers can emit two different fluorescence wavelengths at two different excitation wavelengths, exhibiting double anti-counterfeiting functions, thereby providing higher security.

We propose a method to quantitatively characterize the fine phase transition processes of Li+/Er3+:BaTiO3 (BLET) ferroelectric materials by observing fluorescence wavelength shift.

Here we report the direct predicting the solid-state fluorescence wavelength of a kind of D-π-A molecules via using the push-pull effect of substituents determined by NMR.

Furthermore, C2H2 adsorption dynamics can be monitored in real time by tracking the fluorescence wavelength changes of SPOC-SQ framework.

Interchangeable LED strips and light-filtering screens provide modularity to pair with the fluorescence wavelengths of interest.

Remarkably, the as-prepared SPNs exhibit dramatic emission enhancement and tunable fluorescence wavelength, ascribing to the synergetic effects involving the restriction of intramolecular motions and the prevented excimer formation for CV moieties, as endowed by host-guest interactions and the entanglement of the polymer chains.

Therefore, a fluorescence wavelength shift-based colorimetric sensing of Cl − based on the halide exchange of CsPbBr 3 PNCs has been developed to realize the rapid detection of Cl − in sweat.

The optical properties of these molecules in the solution and solid states, which were identified by UV-vis absorption and fluorescence spectroscopies, clearly indicated that the UV-vis absorption and fluorescence wavelengths are controlled by the donor strength of the terminal aryl groups.

The resulting fluorescence wavelength was significantly red shifted, which was attributed to the deep defect states emission.

While intensities and maximum fluorescence wavelengths changed depending on solvent conditions, these results demonstrate this system’s potential for testing phosphatase activity in high amounts of dioxane.

We find that owing to the protonation-deprotonation process of the pyridine ring, these compounds display obvious changes in both fluorescence wavelength and intensity upon addition of acids, and these changes can be readily recovered by the successive introduction of bases.

M4TC and P4TC exhibited the fluorescence wavelength around 500 nm and the highest fluorescence quantum yield of the present series of poly(tetramethylsilarylenesiloxane) derivatives, i.

However, it is challenging to modulate the fluorescence wavelength from the UV to the visible region through oligopeptides.

It was found REE ions (Group II REEs: Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+, Yb3+) can only quench fluorescence of the initial NCDs solution, but not change its fluorescence wavelengths.

Thus, it is still challenging to construct discrete SCCs with high fluorescence quantum yields and tunable fluorescence wavelengths.

The effect of the instrument parameters (such as types of the detectors, crystal analyzers, and primary radiation filters, as well as x-ray tube operation modes, angular spread of collimators and settings of the window of the amplitude analyzer) of an x-ray fluorescence wavelength-dispersive spectrometer on the fluorescence intensity is shown using the literature data.

In order to meet the needs of the flow cytometry for the simultaneous analysis of multiple fluorescence wavelengths and small volume, the design method of flow cytometry spectrum analysis system is presented by analyzing the characteristics of Dyson structure.

We designed a ratiometric carbohydrate sensor consisting of the boron dipyrromethene fluorophore substituted with boronic acid at the 2-position, based upon the strong substituent dependency of the absorbance/fluorescence wavelengths of BODIPY.

Following initial testing and optimization via PCR and singleplex-to-multiplex qPCR on both plasmid and plant DNA, TaqMan qPCR probes with different fluorescence wavelengths were designed to target actin (a positive-control plant gene), P35S, P3 (a CaMV-specific gene), and TNOS.

These molecules undergo a shift of fluorescence wavelength of about 100 nm upon Pd(0)-induced deallylation in the Tsuji-Trost reaction, allowing for separate visualization of the starting material and product.

Results: We produced a biosensor that can be recognized by MMP2 and determined the presence or absence of MMP2 in cells by identifying difference in fluorescence wavelength.

In contrast, high pressure experiments and theoretical calculations of TPA-Py-CN demonstrate that the excimer fluorescence wavelength is pressure-independent.

Double-resonant gold nanorods have an advantage of the simultaneous enhancement of the absorption and emission when the plasmon bands match the excitation and fluorescence wavelengths of an emitter.

Upon excitation in the CdSe core, the ensemble QY, the fluorescence wavelength, and the fluorescence blinking behavior of individual particles are only dependent on the radial CdS shell thickness and not on the CdS shell length.

In the method, the EOT effect is realized at the fluorescence wavelength of the detected molecules with a low transmission of light at the absorption wavelength.

To measure the sizes of the pores and pore junctions, the team made nanoparticles ranging from 65 to 120 nm in size, each of which had different peak fluorescence wavelengths,.

Upon excitation in the CdSe core, the ensemble QY, the fluorescence wavelength, and the fluorescence blinking behavior of individual particles are only dependent on the radial CdS shell thickness and not on the CDs shell length.

They are favored by most researchers due to their strong stability in fluorescence and adjustability in fluorescence wavelength when compared to traditional organic fluorescent dyes.

The solvent polarity exerts little effect on their absorption properties, while the emission properties (maximum fluorescence wavelength, Stokes shift, fluorescence quantum yield) display solvent polarity dependencies.

Employing a collection of previously synthesized and characterized aminoluciferin analogues, we demonstrate that computational TD‐DFT methods can accurately reproduce and further explain the experimentally measured fluorescence wavelengths.

The carbon dots that were proved most efficient for the specific application were then used to identify the presence of water in various aprotic and protic organic solvents via a sensing mechanism based either on the fluorescence wavelength shift or on the fluorescence intensity enhancement, respectively, attributed to the formation of intermolecular hydrogen bonds between carbon dots and water molecules.

The fluorescence wavelength can be tuned by the strength of the donor–acceptor conjugation, yielding blue to deep-red fluorescence.

The fluorescence wavelength peaks were wider for the protein-like substance released by the P17 strain than for those released by the NOX strain.

A diphenylanthracene-based diamidine (1a) fluorescent probe for the detection of dicarboxylic acids has been designed and synthesized, which has an extended π-conjugation rather than a simple anthracene ring, in order to observe highly different fluorescence wavelengths after complex formation with dicarboxylic acids.