This is the first comprehensive review on methods and materials for use in optical sensing of
pH values and on applications of such sensors. The Review starts with an introduction that …

There is an enormous demand for chemical sensors for many areas and disciplines. High
sensitivity and ease of operation are two main issues for sensor development. Fluorescence …

Functional hybrids are nanocomposite materials lying at the interface of organic and
inorganic realms, whose high versatility offers a wide range of possibilities to elaborate tailor …

An emerging area that has attracted increased attention in recent years is the development
of biosensors based on sol–gel-derived platforms which must be predicated on an …

The sol–gel technology is being increasingly used for the development of optical sensors
and biosensors, due to its simplicity and versatility. By this process, porous thin films …

An optical fiber sensor for Hg (II) in aqueous solution based on sol–gel immobilized carbon
dots nanoparticles functionalized with PEG200 and N-acetyl-l-cysteine is described. This sol …

Since the mid 1970's interest in the chemistry and applications of ruthenium polypyridyl
complexes has increased steadily. In this perspective, the development of this area is …

We designed a new ratiometric fluorescent nanoprobe for sensing pH values in living cells.
Briefly, the nanoprobe consists of a gold nanoparticle (AuNP), short single-stranded …

The development and application of a fluorescent excitation‐ratiometric, noninvasive pH
sensor for continuous on‐line fermentation monitoring is presented. The ratiometric …

The last two decades have seen a revolution in the area of sol–gel-derived materials as
media for the immobilization of biomolecules for biosensor fabrication. Such materials are …