https://profdoc.um.ac.ir/articles/a/1084243.pdf

Metal−organic framework-based sorbents in analytical sample preparation

Progress in low dielectric polyimide film – A review

Recent advances in the fabrication and application of biopolymer-based micro- and nanostructures: a comprehensive review

Mesoporous silica nanomaterials (MSNs) have made remarkable achievements and are being thought of by researchers as materials that can be used to effect great change in cancer therapies, gene delivery, and drug delivery because of their optically transparent properties, flexible size, functional surface, low toxicity profile, and very good drug loading competence. Mesoporous silica nanoparticles (MSNPs) show a very high loading capacity for therapeutic agents. It is well known that cancer is one of the most severe known medical conditions, characterized by cells that grow and spread rapidly. Thus, curtailing cancer is one of the greatest current challenges for scientists. Nanotechnology is an evolving field of study, encompassing medicine, engineering, and science, and it has evolved over the years with respect to cancer therapy. This review outlines the applications of mesoporous nanomaterials in the field of cancer theranostics, as well as drug and gene delivery. MSNs employed as therapeutic agents, as well as their importance and future prospects in the ensuing generation of cancer theranostics and drug and therapeutic gene delivery, are discussed herein. Thus, the use of mesoporous silica nanomaterials can be seen as using one stone to kill three birds.

https://www.mdpi.com/1999-4923/11/2/77/pdf

Mesoporous Silica Nanomaterials: Versatile Nanocarriers for Cancer Theranostics and Drug and Gene Delivery.

In the present work, a simple and rapid method, namely magnetic dispersive micro-solid phase extraction (MD-μ-SPE), was developed using magnetic Fe3O4@SiO2@Ti-MOF (metal-organic framework)-nanocomposites (NCs) as a viable and efficient sorbent to pre-concentrate and assess caffeic acid (CA) in the medical extracts of plants and water samples. The Fe3O4@SiO2@Ti-MOF-NCs were characterized by various techniques, including FESEM, EDX, FTIR, BET, XRD and VSM. Following the extraction process, HPLC was employed to quantify CA. The effects of different parameters on the MD-μ-SPE method were fully investigated by the Plackett-Burman (PBD) and central composite design (CCD). The highest extraction percentage (99.76%) was obtained under different conditions: pH 4.8, 9 mg of Fe3O4@SiO2@Ti-MOF-NCs, sonication for 5 min, and an eluent solvent of 240 μL. Under optimum conditions, the limits of detection (LODs) and the limits of quantitation (LOQs) were obtained in the range of 0.016-0.021 ng mL-1 and 0.052-0.068 ng mL-1, respectively. The reproducibility and repeatability (RSDs, n = 5) were in the range of 3.65-8.66% and 1.84-5.54%, respectively. Overall, the proposed method was successfully used to determine CA in the medical extracts of plants and water samples with favorable recoveries.

Dispersive micro-solid phase extraction based on Fe3O4@SiO2@Ti-MOF as a magnetic nanocomposite sorbent for the trace analysis of caffeic acid in the medical extracts of plants and water samples prior to HPLC-UV analysis

Rational design, synthesis, and application of silica/graphene-based nanocomposite: A review

Metal organic frameworks (MOFs), also called porous coordination polymers, have attracted extensive attention as molecular-level organic-inorganic hybrid supramolecular solid materials bridged by metal ions/clusters and organic ligands. Given their advantages, such as their high specific surface area, high porosity, and open active metal sites, MOFs offer great potential for gas storage, adsorption, catalysis, pollute removal, and biomedicine. However, the relatively weak stability and poor mechanical property of most MOFs have limited the practical application of such materials. Recently, the combination of MOFs with inorganic materials has been found to provide a possible strategy to solve such limitations. Silica, which has excellent chemical stability and mechanical properties, shows great advantages in compounding with MOFs to improve their properties and performance. It not only provides structured support for MOF materials but also improves the stability of materials through hydrophobic interaction or covalent bonding. This review summarizes the fabrication strategy, structural characteristics, and applications of MOF/silica composites, focusing on their application in chromatographic column separation, catalysis, biomedicine, and adsorption. The challenges of the application of MOF/SiO2 composites are addressed, and future developments are prospected.

Functional Metal Organic Framework/SiO2 Nanocomposites: From Versatile Synthesis to Advanced Applications.

Superhydrophobic and Low‐k Polyimide Film with Porous Interior Structure and Hierarchical Surface Morphology

Controllable synthesis of hierarchical polysilsesquioxane surfaces: from spheres-on-sphere to bowls-on-sphere structure

Uniform and reactive hydrogen polysilsesquioxane hollow spheres immobilized with silver nanoparticles for catalytic reduction of methylene blue

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