Two-Dimensional Cobalt-Doped Ti₃C₂ MXene Nanozyme-Mediated Homogeneous Electrochemical Strategy for Pesticides Assay Based on In Situ Generation of Electroactive Substances

Analytical Chemistry, Journal Year: 2022, Volume and Issue: 94(8), P. 3669 - 3676

Published: Feb. 15, 2022

Common homogeneous electrochemical (HEC) sensors usually suffer from the drawbacks of high background signal, low signal-to-noise ratio, and even false positive results due to preaddition electroactive substances. Thus, it is necessary develop novel HEC based on in situ generation substances overcome these shortcomings, which, however, underexplored. In this work, two-dimensional (2D) nanozymes, i.e., cobalt-doped 2D Ti3C2 MXene nanosheets (CMNSs), with excellent peroxidase-like properties were utilized for organophosphate pesticides (OPs) detection. The CMNSs synthesized via a template-directed wet chemical approach displayed outstanding features hydrophilia water dispersibility, which could catalyze oxidation o-phenylenediamine (OPD) generate significantly increased reduction current. Interestingly, exhibited unique response thiol compounds thus employed as highly efficient catalysts OPs hydrolysis acetylthiocholine (ATCh) form thiocholine catalyzed by acetylcholinesterase (AChE) inhibition AChE activity OPs. recovery analysis pakchoi extract solutions ranged 97.4% 103.3%. as-proposed sensor will provide new way development high-performance demonstrate potential applicability determination pesticide residues real samples.

Language: Английский

---

Progress and Perspective of Solid-State Organic Fluorophores for Biomedical Applications

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 143(50), P. 21143 - 21160

Published: Dec. 8, 2021

Fluorescent organic dyes have been extensively used as raw materials for the development of versatile imaging tools in field biomedicine. Particularly, solid-state fluorophores (SSOFs) past 20 years has exhibited an upward trend. In recent years, studies on SSOFs focused advanced tools, such optical contrast agents and phototherapy agents, biomedical applications. However, practical application these hindered owing to several limitations. Thus, this Perspective, we provided insights that could aid researchers further develop overcome limitations limited aqueous dispersibility, low biocompatibility, uncontrolled emission. First, described inherent photophysical properties fluorescence mechanisms conventional, aggregation-induced emissive, precipitating with respect their Subsequently, highlighted functionalized bioimaging, biosensing, theranostics. Finally, elucidated potential prospects current SSOF-based associated

Language: Английский

---

Pyrethroid pesticides: An overview on classification, toxicological assessment and monitoring

Journal of Hazardous Materials Advances, Journal Year: 2023, Volume and Issue: 10, P. 100284 - 100284

Published: March 23, 2023

Pyrethroid pesticides are one of the most important groups used to reduce pest population that cause farmers significant economic loss. Apart from that, it is widely control domestic insects and care for animals. However, not soluble in water, accumulates over time food items directly consumed by humans Through surface runoff, ends up water bodies, where these yrethroid very harmful fish, crabs, lobsters, turtles. In humans, causes neurotoxicity, autism, reproductive toxicity. whereas, aquatic species, produces severe oxidative stress histopathological abnormalities. So, a quick detection method required this reason, so we can avoid consuming pyrethroid-contaminated foods. review, reviewed uses classes pyrethroid group pesticides, their toxicity profiles mammals utilized detection, general overview recent advancement development biosensors real-time detection.

Language: Английский

---

Coordinated carbon dots-Fe featuring synergistically enhanced peroxidase-like activity at neutral pH for specific and background-free detection of dichlorvos

Carbon, Journal Year: 2024, Volume and Issue: 219, P. 118831 - 118831

Published: Jan. 17, 2024

Language: Английский

---

Recent design strategies and applications of small molecule fluorescent probes for food detection

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216232 - 216232

Published: Sept. 30, 2024

Language: Английский

---

Recent advancements in the detection of organophosphate pesticides: a review

Analytical Methods, Journal Year: 2021, Volume and Issue: 13(38), P. 4390 - 4428

Published: Jan. 1, 2021

The colorimetric, fluorescence and electrochemical methods, working principles the limit of detection organophosphorus pesticides have been discussed from period 2015–2021.

Language: Английский

---

Fluorescent probes in public health and public safety

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 449, P. 214208 - 214208

Published: Sept. 15, 2021

Language: Английский

---

A ratiometric supramolecular fluorescent probe for on-site determination of cyfluthrin in real food samples

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 139022 - 139022

Published: Sept. 6, 2022

Language: Английский

---

Lysosome-targeting red fluorescent probe for broad carboxylesterases detection in breast cancer cells

Chinese Chemical Letters, Journal Year: 2022, Volume and Issue: 33(9), P. 4229 - 4232

Published: Feb. 4, 2022

Language: Английский

---

Single-atom Ce-N-C nanozyme bioactive paper with a 3D-printed platform for rapid detection of organophosphorus and carbamate pesticide residues

Food Chemistry, Journal Year: 2022, Volume and Issue: 387, P. 132896 - 132896

Published: April 11, 2022

Language: Английский

---