Application of PAMAM dendrimers in optical sensing

Abstract

The need for an improved sensor performance is always encouraging us towards exploring new materials. Following the invention of dendrimers, the possibility was recognised of using them for improving optical sensor performance. Their more important aspects are their two main structural properties: three-dimensional structure and multiple terminal functional groups. In this review, firstly a brief introduction to dendrimers is provided with the focus on PAMAM dendrimers and optical sensors. Recent advances have been reported in those PAMAM dendrimer-based optical sensors, which are used for the detection of pH, cations, and other analyte.

Synthesis and spectral characterization of a new blue fluorescent tripod for detecting metal cations and protons

“…Among the 1,8-naphthalimide fluorescent sensors, those containing multiple 1,8-napthalimide units are relative new and they are theoretically more selective and sensitive because of suitable binding sites, subtle microenvironment and multiple fluorophores in their structures. [21]. In our previous studies the photophysical properties of PAMAM and PPA type dendrimers modified with 1,8-naphthalimide fluorescence units have been investigated with regard for their sensor application for detection of metal ions and protons [22][23][24][25][26][27][28][29][30][31].…”

“…In our previous studies the photophysical properties of PAMAM and PPA type dendrimers modified with 1,8-naphthalimide fluorescence units have been investigated with regard for their sensor application for detection of metal ions and protons [22][23][24][25][26][27][28][29][30][31]. On the other hand dual emission fluorescent sensors for pH or metal ions are of great importance [21,[32][33][34][35].…”

Design and Investigation of Optical Properties of N-(Rhodamine-B)-Lactam-Ethylenediamine (RhB-EDA) Fluorescent Probe

“…Herein, a probe based on fluorophore Rhodamine B (RhB) was synthesised [ 26 ]. It was previously used as an intermediate in the synthesis of various rhodamine derivates [ 26 , 27 , 28 ] and dendrimers [ 29 , 30 ]. However, to the best of our knowledge, its interesting optical properties and sensitivity to Ag + ions were overlooked.…”

Synthesis, spectral properties and antimicrobial activity of a new cationic water‐soluble pH‐dependent poly(propylene imine) dendrimer modified with 1,8‐naphthalimides

“…Dendrimers are a relatively new class of polymer material and have been studied extensively over recent years for their use in biomedicine [1][2][3] or to design sensor systems. [4,5] They are nanosized compounds with a well defined chemical structure and monodispersed three-dimensional globular forms, characterized by their combining of the properties of low-and high-molecular-weight compounds. The large number of functional groups in the dendrimer molecules allows them to be modified with antimicrobial compounds and, as a result, their microbial resistance was reduced compared with standard antibiotics.…”