Metal Ion Coordination Improves Graphite Nitride Carbon Microwave Therapy in Antibacterial and Osteomyelitis Treatment

Small, Journal Year: 2023, Volume and Issue: 19(47)

Published: July 23, 2023

The ability to effectively treat deep bacterial infections while promoting osteogenesis is the biggest treatment demand for diseases such as osteomyelitis. Microwave therapy widely studied due its remarkable penetrate tissue. This paper focuses on development of a microwave-responsive system, namely, zinc ion (Zn2+ ) doped graphite carbon nitride (CN) system (BZCN), achieved through two high-temperature burning processes. By subjecting composite materials microwave irradiation, an impressive 99.81% eradication Staphylococcus aureus observed within 15 min. Moreover, this enhances growth bone marrow stromal cells. Zn2+ doping alters electronic structure CN, resulting in generation substantial number free electrons material's surface. Under stimulation, sodium ions collide and ionize with generated by BZCN, generating large amount energy, which reacts water oxygen, producing reactive oxygen species. In addition, improves conductivity CN increases unsaturated electrons. polar molecules undergo movement generate frictional heat. Finally, released promotes macrophages polarize toward M2 phenotype, beneficial tibial repair.

Language: Английский

---

Highly coordinated Ni-N5 sites for efficient electrocatalytic CO2 reduction toward CO with faradaic efficiency exceeding 99%

Journal of Catalysis, Journal Year: 2024, Volume and Issue: 433, P. 115495 - 115495

Published: April 11, 2024

Language: Английский

---

Liquid-Gated Graphene Field Effect Transistor for High-Performance Label-Free Sensing of Polycyclic Aromatic Hydrocarbons

Chemosensors, Journal Year: 2025, Volume and Issue: 13(2), P. 56 - 56

Published: Feb. 7, 2025

Polycyclic aromatic hydrocarbons (PAHs) are one of the most toxic environmental pollutants, which very harmful to human body. It is crucial find convenient and effective detection methods PAHs for preventing controlling pollution. Low-dimensional material-based field effect transistor (FET) sensors exhibit advantages a small size, simple structure, fast response, high sensitivity. In this work, graphene (Gr) has been selected as channel material FET PAH detections. Through π-π electron stacking interactions, could be spontaneously adsorbed on surface Gr affect its electronic carrier transport behavior. Based relationship between concentrations changes in Dirac point Gr, sensor achieved an response broad range from 10−10 10−6 mol/L limit was obtained, lower than that provided by World Health Organization (3.46 × 10−9 mol/L), drinking water. The results demonstrate great application analysis, provide important way rapid situ monitoring PAHs.

Language: Английский

---

Coral-like porous tubular Ni doped g-C₃N₄ nanocomposites as bifunctional templates for photocatalytic degradation and fluorescence detection of sunset yellow in beverages

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A one-step calcination method was used to prepare coral-like porous tubular g-C 3 N 4 (Ni–CN) bifunctional composites with Ni doped vacancies, which can be for photocatalytic degradation and fluorescence detection of sunset yellow in beverages.

Language: Английский

---

Dual-Mode Detection of Malathion under Neutral Conditions: Integrated Application of Specific Nanozyme and Time-Resolved Europium Probe

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137650 - 137650

Published: March 1, 2025

Language: Английский

---

Localized Phosphorization Manipulating Internal Electric Field Orientation in Carbon Nitride Homojunction for Efficient Photocatalytic Hydrogen Evolution

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract Internal electric fields (IEF) have been recognized as an efficacious driving force to improve the reactivity of photocatalysis. However, manageable modulation IEF in homojunction remains a great challenge. Herein, local phosphorization strategy by precisely controlling phosphorus (P) atom doping location is presented modulate orientation smartly high‐low crystalline carbon nitride (g‐C 3 N 4 ) homojunction. Different found guide different photocatalytic reaction paths. By incorporating P low‐crystalline g‐C (P‐LCN), modulated directing from P‐LCN high‐crystalline (HCN), which contributes S‐scheme mechanism over P‐LCN/HCN Conversely, HCN (P‐HCN) modulates LCN/P‐HCN reversing P‐HCN (LCN), and follows type‐II mechanism. Profiting effective photocarriers transfer separation dynamics, especially favored electrons reducing capacity, performs superior H 2 evolution (12.09 mmol·g −1 ·h than (4.53 ). Even 3% NaCl solution real seawater, still exhibits incredible production rates 8.45 4.61 , respectively. This study unravels modulating principle phosphorization‐dependent for first time opens potential enhancing efficiency

Language: Английский

---

Innovation of Ratiometric Sensing Strategies Based on Graphitic Carbon Nitride

Critical Reviews in Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 25

Published: April 11, 2025

Graphitic carbon nitride (g-C3N4), a π-conjugated semiconductor with visible-light absorption, has emerged as versatile material for ratiometric sensing due to its thermal/chemical stability, biocompatibility, and tunable optoelectronic properties. This review highlights recent advances in g-C3N4-based electrochemiluminescence (ECL), fluorescence (FL), photoelectrochemical (PEC) sensors ultrasensitive detection of diverse analytes. Ratiometric ECL platforms achieved remarkable limits, such 0.2 nM Hg2+ 59 aM SARS-CoV-2 RdRp gene, leveraging dual-potential or dual-wavelength strategies. FL enabled selective quantification analysts, Ce3+ (6.4 × 10-8 mol/L) tetracycline (5.0 nM) via aggregation-induced emission inner filter effect mechanisms. In PEC sensing, spatial-resolved dual-electrode systems attained ultrahigh sensitivity Escherichia coli (0.66 cfu/mL) alpha-fetoprotein (0.2 pg/mL). These demonstrated enhanced reliability across environmental, biomedical, food safety applications. The synergy g-C3N4's structural advantages design principles demonstrates broad application prospects fields environmental analysis, well early disease diagnosis.

Language: Английский

---

Boosting photogenerated charge accumulation of oxidated carbon nitride nanotubes for efficient CO2 photoreduction

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Language: Английский

---

Flexible Solar Interfacial Evaporators with Photocatalytic Function for Purification of High-Salinity Organic Wastewater

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 632 - 632

Published: April 21, 2025

Solar-driven interfacial water evaporation technology coupled with photocatalytic function is regarded as an emerging approach for treating high-salinity organic wastewater, but it remains challenging to design high-performance solar evaporators excellent properties. Here, we designed a two-dimensional flexible evaporator the purification of wastewater. The was prepared by deposition Cu-based metal frameworks (Cu-MOFs) onto polyester fabric solvothermal reaction, during which graphitic carbon nitride also deposited carried Cu-MOFs. achieves outstanding rate 1.95 kg m−2 h−1 simulated seawater (3.5 wt% NaCl) under 1 sun. shows efficient performance and salt resistance high-concentration saline due its transport capacity light absorption ability. Furthermore, ions pollutants can be simultaneously removed from wastewater synergistic effects adsorption, photothermal effect performance. This study successfully integrated solar-driven evaporation, extending multifunctionality

Language: Английский

---

Flexoelectricity in hydroxyapatite for the enhanced piezocatalytic degradation of phenanthrene in soil

Industrial Chemistry and Materials, Journal Year: 2023, Volume and Issue: 2(2), P. 300 - 308

Published: Oct. 11, 2023

Hydroxyapatite@fluorapatite prepared by ion exchange shows enhanced piezoelectric properties via flexoelectricity arising from the chemical heterogeneities in crystal lattice.

Language: Английский

---