TiO2/carbonaceous nanocomposite from titanium-alginate coordination compound

Li, Deqiang; Meng, Yu-jie; Li, Jun; Song, Ying-jie; Xu, Feng

doi:10.1016/j.carbpol.2022.119400

Cited by 17 publications

(1 citation statement)

References 52 publications

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“…It can be seen in Figure S1A , that the synthesized materials have a high thermal stability independent of doping. The mass losses were less than 3%, which is consistent with previous works [ 25 , 36 , 37 ]. In the DTG curves ( Figure S1B ), an endothermic event before 100 °C can be seen and is associated with evaporation of adsorbed water and/or decomposition of residual organic matter.…”

Section: Resultssupporting

confidence: 93%

Synthesis and Characterization of N and Fe-Doped TiO2 Nanoparticles for 2,4-Dimethylaniline Mineralization

et al. 2022

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The present study aimed to evaluate the feasibility of developing low-cost N- and Fe-doped TiO2 photocatalysts for investigating the mineralization of 2,4-dimethylaniline (2,4-DMA). With a single anatase phase, the photocatalysts showed high thermal stability with mass losses of less than 2%. The predominant oxidative state is Ti4+, but there is presence of Ti3+ associated with oxygen vacancies. In materials with N, doping was interstitial in the NH3/NH4+ form and for doping with Fe, there was a presence of Fe-Ti bonds (indicating substitutional occupations). With an improved band gap energy from 3.16 eV to 2.82 eV the photoactivity of the photocatalysts was validated with an 18 W UVA lamp (340–415 nm) with a flux of 8.23 × 10−6 Einstein s−1. With a size of only 14.45 nm and a surface area of 84.73 m2 g−1, the photocatalyst doped with 0.0125% Fe mineralized 92% of the 2,4-DMA in just 180 min. While the 3% N photocatalyst with 12.27 nm had similar performance at only 360 min. Factors such as high surface area, mesoporous structure and improved Ebg, and absence of Fe peak in XPS analysis indicate that doping with 0.0125% Fe caused a modification in TiO2 structure.

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Section: Resultssupporting

confidence: 93%

Synthesis and Characterization of N and Fe-Doped TiO2 Nanoparticles for 2,4-Dimethylaniline Mineralization

et al. 2022

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Self‐Oxygenated Hydrogel Enhances Immune Cell Response and Infiltration Via Triggering Dual DNA Damage to Activate cGAS‐STING and Inhibiting CAFs

Tian,

Zhu,

Wang

et al. 2024

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Immune checkpoint inhibitors (ICIs) offer promise in breaking through the treatment and survival dilemma of triple‐negative breast cancer (TNBC), yet only immunomodulatory subtype and ≈5% TNBC patients respond as monotherapy due to lack of effector immune cells (internal problem) and physical barrier (external limitation) formed by cancer‐associated fibroblasts (CAFs). A hydrogel drug‐delivery platform, ALG@TBP‐2/Pt(0)/nintedanib (ALG@TPN), is designed to induce strong immune functions and the dual elimination of the internal and external tumor microenvironment (TME). Activated by white light, through type I and II photodynamic therapy (PDT), TBP‐2 generates large amounts of reactive oxygen species (ROS) intracellularly, oxidizing mitochondrial DNA (mtDNA). The unique catalase activity of Pt(0) converts endogenous H2O2 to O2, reducing the anoxia‐limiting PDT and enhancing ROS generation efficacy. Abundant ROS can oxidize Pt(0) to cytotoxic Pt(II), damaging the nuclear DNA (nDNA). Dual damage to mtDNA and nDNA might bi‐directionally activate the cGAS/STING pathway and enhance the immune cell response. Besides, nintedanib demonstrates a significant inhibitory effect on CAFs, weakening the immune barrier and deepening immune cell infiltration. Overall, the study provides a self‐oxygenating hydrogel with the “PDT/chemotherapy/anti‐CAFs” effect, triggering the cGAS/STING pathway to reshape the TME. Both internal and external interventions increase anti‐TNBC immune responses.

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Eco-friendly and biodegradable cellulose hydrogels

et al. 2023

Sustainable Hydrogels

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TiO2/carbonaceous nanocomposite from titanium-alginate coordination compound

Cited by 17 publications

References 52 publications

Synthesis and Characterization of N and Fe-Doped TiO2 Nanoparticles for 2,4-Dimethylaniline Mineralization

Synthesis and Characterization of N and Fe-Doped TiO2 Nanoparticles for 2,4-Dimethylaniline Mineralization

Self‐Oxygenated Hydrogel Enhances Immune Cell Response and Infiltration Via Triggering Dual DNA Damage to Activate cGAS‐STING and Inhibiting CAFs

Eco-friendly and biodegradable cellulose hydrogels

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