Hydrothermal Synthesis and a Composite Crystal Structure of Na6Cu7BiO4(PO4)4[Cl,(OH)]3 as a Candidate for Quantum Spin Liquid DOI
O. V. Yakubovich, Larisa V. Shvanskaya, Galina V. Kiriukhina

et al.

Inorganic Chemistry, Journal Year: 2021, Volume and Issue: 60(15), P. 11450 - 11457

Published: July 15, 2021

A novel sodium bismuth oxo-cuprate phosphate chloride, Na6Cu7BiO4(PO4)4[Cl2.23(OH)0.77], containing square-kagomé layers of Cu2+ has been synthesized by hydrothermal techniques. The compound crystallizes in the tetragonal space group P4/nmm, a = 10.0176(4), c 10.8545(6), Z 2, V 1089.3(1) Å3, R1 0.021, wR 0.053, S 1.32. Its composite crystal structure includes [O4Cu6Bi]7+ layers, which are formed clusters oxygen-centered tetrahedra [OCu3Bi]. These positively charged two periodic fragments intercalated negatively [CuNa6Cl3(PO4)4]7– matrix built Na-centered polyhedra, PO4 tetrahedra, and CuO4Cl pyramids. character as well way its self-assembly, discussed close connection with sulfohalite Na6ClF(SO4)2 salt. It is shown that "host–guest" model formation Na6Cu7BiO4(PO4)4[Cl2.23(OH)0.77] phase due to group–subgroup symmetry relation cubic mineral also supported crystallization condition excess chloride. magnetic subsystem represented dense network 2Cu1 4Cu2 ions, decorated weakly bonded Cu3 ions. Measurements magnetization heat capacity indicate absence long-range order up 2 K, makes this candidate for highly demanded spin liquid.

Language: Английский

Recent Progress in Nanomedicine for the Diagnosis and Treatment of Alzheimer’s Diseases DOI

Han Yang,

Haozhe Tan,

Haifei Wen

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(50), P. 33792 - 33826

Published: Dec. 3, 2024

Alzheimer's disease (AD) is a neurodegenerative that causes memory loss and progressive permanent deterioration of cognitive function. The most challenging issue in combating AD its complicated pathogenesis, which includes the deposition amyloid β (Aβ) plaques, intracellular hyperphosphorylated tau protein, neurofibrillary tangles (NFT), etc. Despite rapid advancements mechanistic research drug development for AD, currently developed drugs only improve ability temporarily relieve symptoms but cannot prevent AD. Moreover, blood–brain barrier (BBB) creates huge to delivery brain. Therefore, effective diagnostic tools treatments are urgently needed. In recent years, nanomedicine has provided opportunities overcome challenges limitations associated with traditional diagnostics or treatments. Various types nanoparticles (NPs) play an essential role diagnosis treatment acting as carriers targeting bioavailability across/bypass BBB directly on lesions. This review categorizes different NPs summarizes their applications It also discusses clinical explores latest developments prospects

Language: Английский

Citations

4
Preparation of Ca-Mg Double-Doped Mesoporous Silica Nanoparticles and Their Drug-Loading and Drug-Releasing Properties DOI Creative Commons
Qian Zhang, Jiamin Huang, Chao Liu

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(1), P. 12 - 12

Published: Jan. 4, 2025

Breast cancer is a common clinical malignant tumor that seriously threatens women’s physical and mental health. Chemotherapy, as the first choice of breast treatment, has limited its application in clinic due to problems poor stability, short half-life, serious toxic side effects. With emergence nanotechnology, inorganic materials prepare mesoporous silica nanoparticles (MSNs) have been widely used anti-tumor drug carriers. However, their slow degradation rate limits biomedical field. Therefore, developing low-toxicity MSNs with good biocompatibility, biodegradability, rapid release at site key scientific issue be addressed. Here, we prepared DOX-loaded Ca-Mg-doped by electrostatic adsorption obtain Ca-Mg@DOX@MSNs suitable particle sizes zeta potential, incorporation calcium magnesium also led an increase under acidic conditions accelerated release, which reduced toxicity DOX promoted cellular uptake This study provides new idea for treatment cancer.

Language: Английский

Citations

0
Transition Metal Oxide Nanohybrid Materials: A Review of Their Structures, Properties, and Applications DOI
Shephrah Olubusola Ogungbesan, Nelson Oshogwue Etafo,

Oluwaseun Hanah Anselm

et al.

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142209 - 142209

Published: March 1, 2025

Language: Английский

Citations

0
Toxicology, stability, and reusability of magnetic nanohybrids DOI
Mehtap Aydın, Güzin Tombuloğlu,

Aysel Karagöz

et al.

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 485 - 498

Published: Jan. 1, 2025

Language: Английский

Citations

0
Hydrothermal Synthesis and a Composite Crystal Structure of Na6Cu7BiO4(PO4)4[Cl,(OH)]3 as a Candidate for Quantum Spin Liquid DOI
O. V. Yakubovich, Larisa V. Shvanskaya, Galina V. Kiriukhina

et al.

Inorganic Chemistry, Journal Year: 2021, Volume and Issue: 60(15), P. 11450 - 11457

Published: July 15, 2021

A novel sodium bismuth oxo-cuprate phosphate chloride, Na6Cu7BiO4(PO4)4[Cl2.23(OH)0.77], containing square-kagomé layers of Cu2+ has been synthesized by hydrothermal techniques. The compound crystallizes in the tetragonal space group P4/nmm, a = 10.0176(4), c 10.8545(6), Z 2, V 1089.3(1) Å3, R1 0.021, wR 0.053, S 1.32. Its composite crystal structure includes [O4Cu6Bi]7+ layers, which are formed clusters oxygen-centered tetrahedra [OCu3Bi]. These positively charged two periodic fragments intercalated negatively [CuNa6Cl3(PO4)4]7– matrix built Na-centered polyhedra, PO4 tetrahedra, and CuO4Cl pyramids. character as well way its self-assembly, discussed close connection with sulfohalite Na6ClF(SO4)2 salt. It is shown that "host–guest" model formation Na6Cu7BiO4(PO4)4[Cl2.23(OH)0.77] phase due to group–subgroup symmetry relation cubic mineral also supported crystallization condition excess chloride. magnetic subsystem represented dense network 2Cu1 4Cu2 ions, decorated weakly bonded Cu3 ions. Measurements magnetization heat capacity indicate absence long-range order up 2 K, makes this candidate for highly demanded spin liquid.

Language: Английский

Citations

26