Ionogels in Aqueous Media: From Conductometric Probing of the Ionic Liquid Washout to the Design of More Stable Materials DOI Creative Commons
Sergey Yu. Kottsov, Alexandra O. Badulina, В. К. Иванов

et al.

ChemEngineering, Journal Year: 2024, Volume and Issue: 8(6), P. 111 - 111

Published: Nov. 1, 2024

Although the most promising applications of ionogels require their contact with aqueous media, few data are available on stability upon exposure to water. In this paper, a simple, easy-to-setup and precise method is presented, which was developed based continuous conductivity measurements an phase, study washout imidazolium ionic liquids (IL) from various silica-based immersed in The accuracy verified using HPLC, its reproducibility confirmed, systematic errors were estimated. experimental show rapid almost complete (>90% 5 h) hydrophilic IL (1-butyl-3-methylimidazolium dicyanamide) TMOS-derived silica ionogel. To lower rate degree washout, several approaches analysed, including decreasing content ionogels, monolithic form instead powder, constructing by gelation liquid, ageing after sol–gel synthesis both hydrophobic silica. All these inhibited washout; lowest level achieved ~14% 24 h. Insights into ionogels’ structure composition, complementary methods (XRD, TGA, FTIR, SEM, NMR nitrogen adsorption), revealed mechanism, shown be governed three main processes: diffusion (1) (2) water, (3) dissolution Washout follow pseudo-second-order kinetics, kinetic constants being range 0.007–0.154 mol−1·s−1.

Language: Английский

Toward Intelligent Materials with the Promise of Self-Healing Hydrogels in Flexible Devices DOI Open Access

Han-Seop Song,

Md. Mahamudul Hasan Rumon, Mohammad Mizanur Rahman Khan

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(4), P. 542 - 542

Published: Feb. 19, 2025

Flexible sensors are revolutionizing wearable and implantable devices, with conductive hydrogels emerging as key materials due to their biomimetic structure, biocompatibility, tunable transparency, stimuli-responsive electrical properties. However, fragility limited durability pose significant challenges for broader applications. Drawing inspiration from the self-healing capabilities of natural organisms like mussels, researchers embedding self-repair mechanisms into improve reliability lifespan. This review highlights recent advances in (SH) hydrogels, focusing on synthesis methods, healing mechanisms, strategies enhance multifunctionality. It also explores wide-ranging applications, including vivo signal monitoring, biochemical sensors, supercapacitors, flexible displays, triboelectric nanogenerators, bioelectronics. While progress has been made, remain balancing efficiency, mechanical strength, sensing performance. offers insights overcoming these obstacles discusses future research directions advancing SH hydrogel-based bioelectronics, aiming pave way durable, high-performance devices next-generation technologies.

Language: Английский

Citations

1
Transparent and Mechanically Robust Janus Nanofiber Membranes for Open Wound Healing and Monitoring DOI
Muzammil Kuddushi, Naved I. Malek, Ben Bin Xu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(46), P. 63389 - 63403

Published: Nov. 7, 2024

The electrospun nanofiber membrane has demonstrated great potential for wound management due to its porous structure, large surface area, mechanical strength, and barrier properties. However, there is a need develop transparent bioactive nanofibers with strong properties facilitate the monitoring of healing process. In this study, we present an electrospinning-based method creating (∼80–90%), (∼11–13 MPa), Janus membranes. innovative square pattern architecture includes thin hydrophobic polycaprolactone layer on top hydrophilic ethylene-vinyl alcohol nanofiber, which enables absorption excess biofluid from exhibits wettability water. Furthermore, incorporating 5% chitosan into composition accelerates process through antioxidant antimicrobial activity against various bacteria, including drug-resistant strains. developed also demonstrates skin-repairing function, quick blood clotting (around 145 ± 12 s), biocompatibility keratinocyte (≥90%), as well in vitro cell migration (∼24 h). With tensile strength 11–13 MPa, effectively adheres knee joint even after running 4 km. These optimal make it suitable effective inspection process, without frequent dressing changes.

Language: Английский

Citations

4
4,4′-(1,4-phenylene)dipyridinium sulfonic acid triflimidate: As an efficient ionic liquid catalyst for the facile synthesis of pyrido-dipyrimidine derivatives DOI

Normurоt Fayzullaev,

Ayad Abdulrazzaq Mutar,

Nusiba M. M Alshik

et al.

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: 1328, P. 141343 - 141343

Published: Jan. 5, 2025

Language: Английский

Citations

0
Are the Imidazole Ionic Liquids Suitable Lubricants for Slippery Coatings? DOI

Timofei V. Golubitchenko,

Kirill A. Emelyanenko,

V. G. Krasovsky

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

The results of an investigation impact the structure recently synthesized bis(trifluoromethylsulfonyl)imide mono- and dicationic ionic liquids on their properties behavior as lubricants for slippery liquid infused superhydrophobic coatings are presented a wide temperature range. In this study, new approach based monitoring surface tension sessile droplet top coating was exploited analysis evolution in prolonged contact with liquid. It found that continuous water flow property degradation according to two different scenarios. first one, washing out lubricant eventually led transition from droplets sliding them rolling establishment state. second scenario revealed di- monocationic ILs siloxane linker or both tails through depletion texture, increase angle value, loss properties, establishing homogeneous wetting regime by aqueous around 140°. obtained experimental data allowed concluding that, among studied ILs, alkyl mixed alkylene/siloxane better suitable application slippery, regularly refilled surfaces.

Language: Английский

Citations

0
Phase Change Behavior and Mechanical Transformation of Eutectic Hydrated-Salt Phase-Change Gels Tuned by Water DOI
Shuaishuai Zhang,

Shengdi Zhang,

Jinbo Zeng

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

Citations

0
Unravelling Optical Properties and Self-Assembly Behavior of Ciprofloxacin in Ionic Liquid Environments: Probing the Role of Cationic Residues and Counter Anions DOI
S. K. Patra, Nilanjan Dey

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This study investigated the interaction of ciprofloxacin (CIP) with three different ionic liquids (ILs) featuring distinct cationic residues (pyrrolidinium, IL1, vs. imidazolium, IL2, bis(trifluoromethylsulfonyl)imide as counter anion) and anions bis(trifluoromethylsulfonyl)imide, hexafluorophosphate, IL3, imidazolium residue) in an aqueous environment. A series spectroscopic studies have been performed to elucidate role ILs optical properties well aggregation behavior CIP. The fluorescence quenching experiment indicated that IL a pyrrolidinium residue showed stronger binding CIP, while was preferred anion. These effects might be attributed complex formation mediated by charge-pair cation-π interactions, along hydrogen bonding. Stern-Volmer analysis confirmed static mechanism, constants (Kb) reflecting affinity IL1 due hydrophobic butyl group flexible cation, resulting larger aggregates. In contrast, IL2 facilitated π-π hydrogen-bond disrupting CIP smaller clusters. polarizable nature its bond-accepting ability enabled containing this anion compared hexafluorophosphate-containing ILs. Further pH 6 is optimum for CIP-IL where remained zwitterionic form. Increased temperature strength diminished efficiency, consistent reduced stability complexes under such conditions.

Language: Английский

Citations

0
Biomaterials for neuroengineering: Applications and challenges DOI Creative Commons

Huanghui Wu,

E.J. Feng,

Huazong Yin

et al.

Regenerative Biomaterials, Journal Year: 2025, Volume and Issue: 12

Published: Jan. 1, 2025

Abstract Neurological injuries and diseases are a leading cause of disability worldwide, underscoring the urgent need for effective therapies. Neural regaining enhancement therapies seen as most promising strategies restoring neural function, offering hope individuals affected by these conditions. Despite their promise, path from animal research to clinical application is fraught with challenges. Neuroengineering, particularly through use biomaterials, has emerged key field that paving way innovative solutions It seeks understand treat neurological disorders, unravel nature consciousness, explore mechanisms memory brain’s relationship behavior, tissue engineering, interfaces targeted drug delivery systems. These including both natural synthetic types, designed replicate cellular environment brain, thereby facilitating repair. This review aims provide comprehensive overview biomaterials in neuroengineering, highlighting functional across basic practice. covers recent developments biomaterial-based products, 2D 3D bioprinted scaffolds cell organoid culture, brain-on-a-chip systems, biomimetic electrodes brain–computer interfaces. also explores artificial synapses networks, discussing applications modeling microenvironments repair regeneration, modulation manipulation integration traditional Chinese medicine. serves guide role advancing neuroengineering solutions, providing insights into ongoing efforts bridge gap between innovation application.

Language: Английский

Citations

0
Stimuli-Responsive Self-Healing Ionic Gels: A Promising Approach for Dermal and Tissue Engineering Applications DOI Creative Commons
Deepanjan Datta,

Viola Colaco,

Sony Priyanka Bandi

et al.

ACS Biomaterials Science & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

The rapid increase in the number of stimuli-responsive polymers, also known as smart has significantly advanced their applications various fields. These polymers can respond to multiple stimuli, such temperature, pH, solvent, ionic strength, light, and electrical magnetic fields, making them highly valuable both academic industrial sectors. Recent studies have focused on developing hydrogels with self-healing properties that autonomously recover structural integrity mechanical after damage. hydrogels, formed through dynamic covalent reactions, exhibit superior biocompatibility, responsiveness particularly pH changes. However, conventional are limited by weak brittle nature. To address this, ionizable moieties within polyelectrolytes be tuned create ionically cross-linked leveraging natural alginate, chitosan, hyaluronic acid, cellulose. integration liquids into these enhances conductivity, positioning significant agents. This review focuses emerging field ionic-based explores potential dermal tissue engineering.

Language: Английский

Citations

0
Revealing the Impact of Gel Electrolytes on the Performance of Organic Electrochemical Transistors DOI Creative Commons

Mancheng Li,

Xiaoci Liang, Chuan Liu

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(3), P. 202 - 202

Published: March 14, 2025

Gel electrolyte-gated organic electrochemical transistors (OECTs) are promising bioelectronic devices known for their high transconductance, low operating voltage, and integration with biological systems. Despite extensive research on the performance of OECTs, a precise model defining dependence OECT gel electrolytes is still lacking. In this work, we refine device to comprehensively account electrical double layer (EDL)’s capacitance electrolyte. Both experimental data theoretical calculations indicate that maximum transconductance contingent upon ion concentration, drain scan rate, highlighting strong correlation between hydrogel Overall, serves as tool improving enabling further development devices.

Language: Английский

Citations

0
Magnetic Ionogel and Its Applications DOI Creative Commons
Sayan Ganguly, Shlomo Margel

Gels, Journal Year: 2025, Volume and Issue: 11(4), P. 219 - 219

Published: March 21, 2025

Magnetic ionogels, a category of hybrid materials consisting magnetic nanoparticles and ionic liquids, have garnered significant interest owing to their remarkable attributes, including tunability, flexibility, reactivity external fields. These provide distinctive amalgamation the benefits both resulting in improved efficacy across many applications. ionogels may be readily controlled using fields, rendering them suitable for drug administration, biosensing, soft robotics, actuators. The capacity incorporate these into dynamic systems presents novel opportunities development responsive, intelligent capable real-time environmental adaptation. Nonetheless, despite promising potential problems persist, optimization particle dispersion, enhancement ionogel mechanical strength, improvement long-term stability. This review comprehensive examination syntheses, characteristics, uses emphasizing breakthroughs persistent within domain. We examine recent advancements prospective research trajectories aimed at enhancing design practical applications diverse biomedical uses, sensors, next-generation seeks elucidate present status influence on science engineering.

Language: Английский

Citations

0