A new optical luminescent-lifetime pH sensor based on the sol-gel doped europium chelate has been developed.
COBISS.SI-ID: 12228374
The development of nanoscale materials for optical chemical sensing applications has emerged as one of the most important research areas of interest over the past decades. Our presentation concentrates on nanomaterials, such as quantum dots, polymer- and sol-gel-based particles. The benefits and drawbacks of the properties of these nanomaterials used in optical sensing applications are given, and the recently developed optical chemical sensors and probes based on photoluminescence are overviewed. Finally, some future trends of the nanomaterial-based optical chemical sensors are given.
COBISS.SI-ID: 14514454
Optical pH sensing offers numerous advantages over conventional erferences, ease of miniaturization and the possibility of remote electrochemical techniques, for example, immunity to electrical intsensing and in vivo measurement. In this work, we have studied the effects of epoxy-modification of silicate matrices containing entrapped pH sulfonephthalein colorimetric indicators as functional inorganic-organic hybrid materials.The developed sensors based on the hybrid sol-gel matrixes have dynamic pH ranges that are amenable to applications, such as environmental monitoring and bioprocessing.
COBISS.SI-ID: 14002710
The development of nanoscale materials for optical chemical sensing applications has emerged as one of the most important research areas of interest over the past decades. Nanomaterials exhibit highly tunable size- and shape-dependent chemical and physical properties, show unique surface chemistry, thermal and electrical properties, high surface area and large pore volume per mass unit area. Because of their features they can help to improve sensitivity, response time and detection limit of sensors. Recently developed photoluminescence-based optical chemical nanosensors are presented.
COBISS.SI-ID: 14803990
In this paper, a new luminescent europium probe is presented for the determination of phosphate (P) in microtiter plate format. Compared to other developed methods for inorganic phosphate determination, the present assay is advantageous since it works best at a neutral pH 7 range and is therefore suitable for phosphate determination in biological and biochemical systems. The limit of detection was 3 µmol/L of P. This sensor system is fast, easy, specific and sensitive and thus presents an advantageous alternative to other developed methods for phosphate detection.
COBISS.SI-ID: 14268694