Sensors & Diagnostics, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
4,4-Diaryloxy-BODIPYs were presented for fluorescence turn-on detection of sarin in solution media. A compact tubular sensor and a sensing platform prototype fabricated situ real agents simulants at the sub-mM level.
Language: Английский
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 27, 2024
The development of highly efficient sensors for low-concentration SO
Language: Английский
Citations
11
ACS Sensors, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 12, 2025
Pathogenic bacterial infections pose a significant threat to human life, health, and socioeconomic development, with those arising from Escherichia coli (E. coli) O157:H7 being particularly concerning. Herein, customized aggregation-induced emission luminogens (AIEgen)-based signaling tags (TPA-galactose) were combined microfluidic chip for the determination of E. O157:H7. TPA-galactose undergoes hydrolysis by β-galactosidase, resulting in formation highly fluorescent TPA–OH AIE characteristics. Phages covalently bound surface magnetic beads specifically capture lyse O157:H7, releasing endogenous fluorescence intensity facilitates The process achieves sensitivity 45 CFU/mL min, requiring no DNA extraction or amplification, utilizing minimal sample volume, enabling accurate one-stop quantification live This strategy enables rapid on-site environmental, food, clinical samples, significantly enhancing public health safety.
Language: Английский
Citations
2
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 13, 2024
The innovation of synthetic strategies for selective B-H functionalization is a pivotal objective in the realm boron cluster chemistry. However, precise, efficient, and rapid bond carboranes that distant from existing functional groups remains intractable owing to limited approaches site-selective control established methods. Herein, we report dative bonding activation strategy nonclassical remote site
Language: Английский
Citations
8
ACS Sensors, Journal Year: 2024, Volume and Issue: 9(9), P. 4608 - 4616
Published: Aug. 8, 2024
Efficient and reliable technologies for the on-site detection of illicit drugs are important in drug-facilitated crime investigations. However, development such is challenging. Based on synthetic optimization, introducing a boron ester functional group to two furanic indicators endows stimulus-responsive properties synergistically. The ring-opening reaction presence amine-containing generated well-known donor-acceptor Stenhouse adducts, accompanied by strong color changes. A small-size lightweight laminated sensor was integrated based outstanding ratiometric variations active indicators. prototype platform fabricated equipped with circuit control, mini pump, signal processing system. user-friendly efficient screening drugs, including phenethylamines, amphetamines, cathinones, tryptamines liquid states were conducted. response linear concentration range 2.1-10.6 μg·mL
Language: Английский
Citations
4
Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 418, P. 136285 - 136285
Published: Nov. 1, 2024
Language: Английский
Citations
3
Journal of Coordination Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 11
Published: Jan. 20, 2025
Language: Английский
Citations
0
Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 17, 2025
Abstract High‐performance film‐based sensors are key innovations driving advancements in sensing technologies. An ultra‐sensitive formic acid sensor based on a polymer fluorescent nanofilm synthesized via interfacial assembly using tetraphenylethylene derivative functionalized with aldehyde and hydroxyl groups is reported. These promote imine bond formation enhance selectivity. The nanofilm, prepared through dynamic condensation 4,4′‐diaminodiphenyl ether at the air‐DMSO interface, exhibits excellent luminescence, flexibility, tunable surface topography. Its bright fluorescence primarily due to aggregation‐induced emission (AIE) property hydrogen bonding interactions within film structure. Imines serve as recognition sites for acid, where weak alters electronic environment of groups, blocking proton donors (─OH) promoting non‐radiative decay, leading selective quenching. achieves an ultra‐low detection limit 550 ppt, rapid response time 0.3 s, reversibility. It also demonstrates high selectivity over other VOCs, making it suitable real‐time monitoring. Additionally, nanofilm's multimodal capabilities, including responses HCl NH 3 , highlight its potential diverse environmental industrial applications.
Language: Английский
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(9), P. 14623 - 14633
Published: Feb. 21, 2025
Photoluminescence efficiencies of covalent organic frameworks (COFs) are significantly restricted by electron delocalization and charge transfer among the conjugated skeletons. Two nanofilms using tetraphenylethylene benzo[c][1,2,5]thiadiazole as building blocks were facilely prepared via an interfacially confined condensation strategy. The distinct dipole moment orientations imine linkages involved in π-delocalization donor-acceptor systems diversely. They also played critical roles affecting fluorescence turn-on sensing obtained for gaseous trifluoroacetic acid (TFA). joint donor-C═N-acceptor sequence nanofilm #2 resulted relatively stronger originally than that #1, featuring disturbed donor-N═C-acceptor sequence. While after blowing trace TFA, latter #1 possessed prominent enhancement obvious color visualization. Comparative transient absorption observations theoretical calculations elucidated effective manipulation intramolecular (ICT) imine-linked functional With help a laminated fluorescent sensor, compact platform was further integrated optimized #1. It exhibited good selectivity, excellent reversibility (≥50 recycles), extraordinary detection limit (∼0.1 ppt), rapid recovery process to TFA. Our findings provide valuable optimizations π-linkages COFs reliable film sensors monitoring toxic hazardous gases.
Language: Английский
Citations
0
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161372 - 161372
Published: March 1, 2025
Language: Английский
Citations
0
The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 3389 - 3396
Published: March 26, 2025
It is challenging to predict optical properties of fluorescent dyes, especially in the crystalline state, owing uncertainty conformation, packing, and coupling. Herein, we elucidate decisive role molecular conformation packing fluorescence emissions some materials based on experimental results theoretical calculations. Two homologous fluorophores (Ph-MP Ph-HP) were synthesized, they both exhibited interesting crystallization-induced emission enhancement quenching. Although homologues show almost same behavior solid on-off their crystals depends upon different factors. Emission Ph-MP governed by twisted intramolecular charge transfer effect, while Ph-HP relied π-π stacking. Based this understanding, application single-molecule-based versatile information encryption was demonstrated. believed that evidence unveiled mechanism for effect crystallization will contribute development high-performance luminescent materials.
Language: Английский
Citations
0