Dye confined in metal-organic framework for two-photon fluorescent temperature sensing

“…(Figure .7d) Hence we can say that sensor1 is more sensitive towards temperature than any other reported sensors.Thus reversibility, sensitiveness, non-toxicity, wide range of temperature for detection makes sensor1 a good candidate for the application of molecular thermosensing. [35,36] As Fluorescent ink Satisfying PL stability, solubility, high fluorescence, and non-venomous properties of sensor1 made us use it for fluorescent ink application. In recent periods traditional inks which are used in information storage and encryption, document labeling, etc are being replaced by fluorescent inks, hence are gaining more attention.…”

Section: Application In Temperature Sensingmentioning

confidence: 99%

Photophysical Investigation of A Benzimidazole Derivative and Its Applications In Selective Detection of Fe3+, Thermosensing and Logic gates.

Nadgir

Patil

2021

Preprint

View full text Add to dashboard Cite

The fluorescence based applications such as chemosensing of Fe3+ ion, temperature sensing, NOR-gate molecular logic operations, and fluorescent ink were achieved using an expired medicine namely Pantoprazole (sensor1) which is a derivative of benzimidazole class. The phenomenon of quenching was a basic principle used in sensing Fe3+. We found that there was a combined effect of dynamic and static processes in quenching of fluorescence of sensor1. To confirm the selectiveness of sensor1, we performed interference experiments with other metal ions. There was no interference between these metal ions and Fe3+. The low LOD value of 1.032µM suggested that the molecule is highly sensitive towards Fe3+. A high quantum yield of 8.087% increased the possibility of using sensor1 for light applications. There was a 2:1 stoichiometric ratio between sensor1 and Fe3+. The FTIR data analysis confirmed the presence of functional groups S = O, C-O-C, etc. The average particle size found with the DLS method was 130.5nm. The zeta potential of -12.7mV indicated that sensor1 is quite stable in solution form. For logic gate application EDTA (Ethylenediaminetetraaceticacid) and Fe3+ were considered as inputs and fluorescence intensity was taken as an output. In thermal sensing application, the high value of activation energy i.e 908meV and relative sensitivity of 1.2% 0C−1 affirmed that sensor1 can be used for thermal applications. The sensor1 was also apt for fluorescent ink application. Hence this investigation deduced that sensor1 can be a potential candidate for such applications over other conventional synthesized fluorescent probes.

show abstract

“…Such emission undergoes a two‐photon absorption (TPA) process, bearing the advantages of deeper tissue penetration, tight focusing area, reduced autofluorescence, and improved signal‐to‐noise ratios . Therefore, photon color tuning materials by TPEF process are especially applicable in biological, laser, and telecommunication fields . However, as far as we know, no strategic example has been reported so far to emit reliable TPEF white light.…”

Section: Introductionmentioning

confidence: 99%

White‐Light Emission from Dual‐Way Photon Energy Conversion in a Dye‐Encapsulated Metal–Organic Framework

et al. 2019

View full text Add to dashboard Cite

The design of white‐light phosphors is attractive in solid‐state lighting (SSL) and related fields. A new strategy in obtaining white light emission (WLE) from dual‐way photon energy conversion in a series of dye@MOF (LIFM‐WZ‐6) systems is presented. Besides the traditional UV‐excited one‐photon absorption (OPA) pathway, white‐light modulation can also be gained from the combination of NIR‐excited green and red emissions of MOF backbone and encapsulated dyes via two‐photon absorption (TPA) pathway. As a result, down‐conversion OPA white light was obtained for RhB+@LIFM‐WZ‐6 (0.1 wt %), BR‐2+@LIFM‐WZ‐6 (2 wt %), and APFG+@LIFM‐WZ‐6 (0.1 wt %) samples under 365 nm excitation. RhB+@LIFM‐WZ‐6 (0.05 wt %), BR‐2+@LIFM‐WZ‐6 (1 wt %) and APFG+@LIFM‐WZ‐6 (0.05 wt %) exhibit up‐conversion TPA white light under the excitation of 800, 790, and 730 nm, respectively. This new WLE generation strategy combines different photon energy conversion mechanisms together.

show abstract

Dye confined in metal-organic framework for two-photon fluorescent temperature sensing

Cited by 21 publications

References 28 publications

Photophysical Investigation of a Benzimidazole Derivative and Its Applications in Selective Detection of Fe3+, Thermosensing and Logic Gates

Photophysical Investigation of a Benzimidazole Derivative and Its Applications in Selective Detection of Fe3+, Thermosensing and Logic Gates

Photophysical Investigation of A Benzimidazole Derivative and Its Applications In Selective Detection of Fe3+, Thermosensing and Logic gates.

White‐Light Emission from Dual‐Way Photon Energy Conversion in a Dye‐Encapsulated Metal–Organic Framework

Contact Info

Product

Resources

About