Detection of an oxidative stress metabolite associated with neurodegenerative diseases: effect of heteroatom doped antioxidant carbon dots

RSC Advances, Journal Year: 2025, Volume and Issue: 15(11), P. 8354 - 8366

Published: Jan. 1, 2025

Carbon dots (CDs) are neoteric forms of carbon nanostructures, and play a fundamental role in early diagnosis controlling neurological disorders (NDs).

Language: Английский

---

The Use of Carbon Dots for Food Packaging and Preservation: Toxic or Beneficial?

Comprehensive Reviews in Food Science and Food Safety, Journal Year: 2025, Volume and Issue: 24(3)

Published: April 24, 2025

ABSTRACT Carbon dots (CDs), which are emerging as versatile nanomaterials, have gained interest in food packaging and preservation due to their sustainable origin multifunctional characteristics, such antimicrobial, antioxidant, UV‐protective properties. CDs can be synthesized from biomass been proposed functional additives material improve the safety shelf life of packaged food. Despite these benefits, concerns raised about potential toxicity when leached into foods, especially since they belong nanomaterial category. Interestingly, foodborne CDs, naturally formed heat‐processed foods consumed by humans for centuries, add a new complexity debate. Although there is no definitive evidence linking endogenous adverse health effects, some studies suggest interfere with metabolism animal models. In addition, presence hazardous substances thermally processed polycyclic aromatic hydrocarbons (PAHs), may further complicate assessment. This review addresses paradox CD sources, highlighting its dual role both potentially toxic agent beneficial material. More extensive research essential fully understand long‐term effects on human determine whether use truly safe or beneficial.

Language: Английский

---

Fullerene-Functionalized Cellulosic Hydrogel Biosensor with Bacterial Turn-on Fluorescence Response Derived from Carboxymethyl Cellulose for Intelligent Food Packaging with DFT Calculations and Molecular Docking

Gels, Journal Year: 2025, Volume and Issue: 11(5), P. 329 - 329

Published: April 28, 2025

This study reports the synthesis and characterization of a novel carboxymethyl cellulose–N-fullerene–g-poly(co-acrylamido-2-methyl-1-propane sulfonic acid) (CMC–N-fullerene–AMPS) hydrogel for potential application in biosensing within food packaging. The was synthesized via free radical polymerization characterized using FTIR, SEM, fluorescence microscopy. FTIR analysis confirmed successful grafting AMPS incorporation N-fullerenes, indicated by characteristic peaks shift N–H/O–H stretching frequency. Density Functional Theory (DFT) calculations revealed that CMC–N-fullerene–AMPS exhibited higher stability lower band gap energy (0.0871 eV) compared to CMC–AMPS hydrogel, which means high reactivity CMC–N-fullerene–AMPS. N-fullerenes significantly enhanced hydrogel’s antibacterial activity, demonstrating 22 mm inhibition zone against E. coli 24 S. aureus, suggesting active packaging applications. Critically, displayed unique “turn-on” response presence bacteria, with distinct color changes observed upon interaction (orange-red) aureus (bright green). enhancement, coupled porous morphology SEM (pore size 377–931 µm), suggests this as sensing platform bacterial contamination These combined properties activity distinct, bacteria-induced signal make promising candidate developing intelligent materials capable detecting spoilage.

Language: Английский

---

Harnessing piperine for enhanced antimicrobial activity of carbon dot-modified cellulose fibers

Deleted Journal, Journal Year: 2024, Volume and Issue: 6(9)

Published: Sept. 14, 2024

Language: Английский

---

Surface engineered naturally derived antioxidant carbon dots and its light triggered nitric oxide release behavior

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 112203 - 112203

Published: March 1, 2025

Language: Английский

---

Multimodal applications of green carbon dots derived from Potentilla indica (mock strawberry): Antioxidant, antimicrobial, and quenching based quercetin sensor

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114216 - 114216

Published: Sept. 1, 2024

Language: Английский

---

N, S-codoped carbon dots for antioxidants and their nanovehicle potential as molecular cargoes

RSC Advances, Journal Year: 2024, Volume and Issue: 14(44), P. 32041 - 32052

Published: Jan. 1, 2024

This work demonstrates the facile one step hydrothermal synthesis of carbon dots doped with nitrogen and sulfur (SCDs). The have various uses, including their use as molecular payloads for antioxidant drug delivery purposes. sizes CDs were determined using transmission electron microscopy (TEM), which revealed an average size 4.2 nm. successful doping was confirmed by Fourier-transform infrared (FTIR) spectroscopy X-ray photoelectron (XPS), identified typical functional groups elemental composition. UV-vis photoluminescence (PL) a wide absorption peak at 280 nm pronounced blue emission 440 Colloidal stability dynamic light scattering (DLS) zeta potential analysis. characteristics evaluated through paramagnetic resonance (EPR) spectroscopy, notable ability to scavenge radicals more than 80% radical scavenging capability. SCDs also showed nontoxic behavior against living cells. findings emphasize in fields bioimaging, delivery, potent agents.

Language: Английский

---

Antibacterial activity of eco-friendly sustainable carbon dots: mechanisms, challenges, and perspectives

Brazilian Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: July 27, 2024

Language: Английский

---

N-doped antioxidant carbon dots as a bimodal probe for nitrite detection in commercial meat products

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: unknown, P. 111624 - 111624

Published: Sept. 1, 2024

Language: Английский

---

Blood Erythrocytes—a Biological Model for Evaluating Antioxidant Activity of Chemical Compounds (A Review)

Russian Journal of Bioorganic Chemistry, Journal Year: 2024, Volume and Issue: 50(6), P. 2191 - 2208

Published: Dec. 1, 2024

Language: Английский

---