Supramolecular hydrogel with luminescence tunablility and responsiveness based on co-doped lanthanide and deoxyguanosine complex

Coordination-Assembly of Lanthanide Supramolecular Hydrogels with Luminescent Multi-stimulus Response

“…Hence, the enhancement of ISC (S 1 to T 1 ) of the ligand led to a higher efficiency of energy transfer from the ligand to the Eu 3+ , which was ascribed to a better match between the energy level of ligand H 4 L 1 and the resonance energy level of Eu 3+ . 3,46 Inspired by reports by Parker et al, 47,48 the pH-sensing properties of our hydrogel have been demonstrated (Figure 3f). Because the hydrogel HG-Eu 2n L 3n 1 is deprotonation selfassembled, it tends to disassemble under acidic conditions.…”

“…In other words, the enhanced luminescence response of the HG-Gd 2 n L 3 n 1 hydrogel to Pb 2+ was attributed to the “heavy atom effect”. Hence, the enhancement of ISC (S 1 to T 1 ) of the ligand led to a higher efficiency of energy transfer from the ligand to the Eu 3+ , which was ascribed to a better match between the energy level of ligand H 4 L 1 and the resonance energy level of Eu 3+ . , …”

“…Accurate design of luminescent materials that are sensitive to external stimuli, such as light, temperature, pH, metal ions, chemical action, and mechanical stress, is critical to the development of next-generation smart optical materials. − Over the past few decades, luminescent supramolecular hydrogels have shown extraordinary potential and established a multibillion dollar industry until today for their versatile functions and unique biocompatibility. − Various functional supramolecular hydrogels have been constructed through internal network cross-linking triggered by non-covalent interactions, such as π–π interactions, hydrogen bond, metal-coordination, and electrostatic interactions. − Particularly, a metal/ligand complex has unique kinetic properties and sensitive stimulus responsiveness arising from the coordination bonds, which provides a worthy strategy for the construction of luminescent stimulus-responsive supramolecular hydrogels …”

Supramolecular Hydrogel with Orthogonally Responsive R/G/B Fluorophores Enables Multi‐Color Switchable Biomimetic Soft Skins

“…[3][4][5][6][7][8][9][10][11][12][13] Given the high similarity between polymeric hydrogels and animal skins, for example, tissue-like mechanical property and soft wet nature, [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] the development of responsive multicolor polymeric hydrogels is attracting great research interest. [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] Such materials are not only beneficial to the better understanding of natural color-changing systems, but also capable of serving as soft biomimetic displaying/camouflaging skins to enhance the function of existing actuators/robotics/ prosthetics. [45,46] However, compared with structural/pigment color-changing materials, the fluorescent color changeable materials have been very little exploited as soft biomimetic skins, but such systems are very important especially for disguise/ display applications in low-or no-light cond...…”

Lanthanide-Mediated Cyclodextrin-Based Supramolecular Assembly-Induced Emission Xerogel Films: A Transparent Multicolor Photoluminescent Material

“…Lanthanide ions are usually regarded as prior metal ions to build photoluminescence materials because of their excellent coordination abilities and fluorescence properties, which have attracted great attention in recent years. − Hence, supramolecular metallic hydrogels based on lanthanide ions, due to their excellent photoluminescence properties, are not only excellent sources for the preparation soft materials but also used in unprecedented applications ranging from luminescence sensing, imaging and data storage. , Different from traditional soft materials, solid-state supramolecular xerogel films have potential applications in novel adsorbent materials, , photochromic smart windows, − and LEDs , with the advantage of portability and in situ visualization.…”