Functional Ordered Mesoporous Materials: Present and Future

Lan, Kun; Zhao, Dongyuan

doi:10.1021/acs.nanolett.2c00902

Cited by 52 publications

(26 citation statements)

References 27 publications

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“…According to the International Union of Pure and Applied Chemistry (IUPAC) definition, porous materials are categorized according to their pore sizes: microporous materials with pore sizes below 2 nm, mesoporous materials with pore sizes of approximately 2-50 nm, and macroporous materials with pore sizes greater than 50 nm. One of the representative microporous materials is zeolites, which exhibit large surface areas (300-2000 m 2 g −1 ) that have reached a state of maturity as catalysts and adsorbents for industrial separations 31,32 . The commercialization of zeolites has been facilitated by their high thermal stability levels, which result from their strong constituent tetrahedral bonds, such as Si-O and Al-O bonds 33 .…”

Section: Pore-engineered Nanoarchitectonics Basics 1: Classification ...mentioning

confidence: 99%

Pore-engineered nanoarchitectonics for cancer therapy

Sutrisno

Ariga

2023

NPG Asia Mater

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Nanoarchitectonics describes the integration of nanotechnology with other fields as a postnanotechnology concept that elevates it to material science. Based on this fundamental principle, we address pore-engineered nanoarchitectonics with application targets for cancer therapy by combining basic descriptions and exemplifying therapy applications in this review. The initial two sections briefly summarize pore-engineered nanoarchitectonics basics according to classification based on (i) material porosity and (ii) material composition. Afterward, the main application-oriented section—designing mesoporous material for cancer therapy—is presented. Various types of drug delivery systems, including mesoporous nanoparticles as nanocarriers, endogenous stimuli-responsive drug delivery, exogenous stimuli-responsive drug delivery, and targeted drug delivery, are described. Importantly, the clinical translation of mesoporous materials is further discussed. Mesoporous materials are unique nanoparticles that offer a network of cavities as vehicles for drug nanocarriers. Regarding the developments that allow mesoporous nanoparticles to be broadly used in clinical settings, there are several challenges that should be solved for their clinical application. From a clinical perspective, there are tremendous processes in the development of mesoporous materials.

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Section: Pore-engineered Nanoarchitectonics Basics 1: Classification ...mentioning

confidence: 99%

Pore-engineered nanoarchitectonics for cancer therapy

Sutrisno

Ariga

2023

NPG Asia Mater

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“…Mesoporous silica particles intrinsically possess highly ordered porosities, and well-defined structures, − which endow them with the capability of loading and releasing different fragrances. − For example, Xue et al fabricated hollow mesoporous silica nanospheres (HMSNs) by the sol–gel method to load lemon essential oil, in which the fragrance molecules not only decorated on the HMSN surface but also entered into the core of HMSN, guaranteeing the lasting aromatic properties . In our previous work, the light-sensitive mesoporous silica nanoparticles were prepared by grafting an azobenzene light-sensitive coupling agent to effectively load the typical Chinese floral fragrance-osmanthus fragrance (OF-TM-SiO 2 -AZO nanoparticles) and then used for leather perfuming, with the aims to improve the odor of leather and achieve controlled release performance under light conditions .…”

Section: Introductionmentioning

confidence: 99%

One-Pot Controllable Synthesis of Silica Nanocapsules with Encapsulated Osmanthus Fragrance for Durable Odor Improvement of Leather

Zhou

Huo

Cheng

et al. 2023

ACS Sustainable Chem. Eng.

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Encapsulation of fragrance in micro/nanocapsules can preserve its own unique aroma in harsh environments and is the main way for leather perfuming to cover the peculiar odor of traditional leather products. Despite the success of post loading fragrance, limited consideration has been given to the tedious preparation procedures and the unacceptable loading efficiency. Herein, a highly efficient and straightforward one-pot loading method was developed to prepare osmanthus fragrance-silica nanocapsules (OF-SiO2 NCs) via hydrolysis and condensation reactions. The particle size could be easily controlled from 158 to 1063 nm with an OF loading efficiency of 10.2–18.7%, as desired by changing the solute content or altering the reaction temperature. Simultaneously, the above factors were found to affect the degree of ordered mesopores by promoting either the self-assembly of the surfactant–silica micelles or the condensation of the silica. The developed OF-SiO2 NCs were applied to perfume the cow leather-wet blue and sheep leather-dyed crust, which improved obviously the smelly odor. Moreover, up to two weeks of aromatic fragrance sustained release gave evidence of the highly incense retention time. These features highlight the potential use of OF-SiO2 NCs for aromatic leather products.

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“…Because of the unique microphase separation behavior, amphiphilic block copolymers (BCPs) have been intensively employed as structure-directing agents for controlled preparation of ordered mesoporous materials over the past decades. − Compared with small amphiphilic molecules (surfactants), BCPs have a series of distinct features, such as adjustable compositions, molecular weights, volume fractions, and molecular architectures, which bring rich mesostructural morphologies through microphase separation and offer a great flexibility in the control of pore size and structure, pore volume, and wall thickness in the development of mesoporous materials. − In this context, the commercially available Pluronic PEO–PPO–PEO block copolymers, including F127, F108, and P123, have been extensively utilized for preparing various mesoporous materials. , Meanwhile, with the development of controllable living polymerization methods, such as atom transfer free radical polymerization (ATRP) and reversible addition–fragmentation chain transfer (RAFT) polymerization, an increasing number of diblock and triblock copolymer systems have been synthesized and employed as soft templates to achieve improved control in the creation of high-quality mesostructured materials with desired structural and composition properties. − For example, various diblock copolymers with hydrophobic blocks containing sp 2 -hybridized carbon have been designed and prepared, − such as poly(ethylene oxide)- block -polyisoprene and poly(ethylene oxide)- block -polystyrene. In relative to commercial Pluronic copolymers, such laboratory-made or tailor-made copolymers possess higher carbon contents as well as higher glass transition temperatures ( T g ) and better thermal stability, making it possible to form well-defined mesostructures with highly crystalline and even single crystalline pore walls. ,− Recently, we also synthesized a new kind of pyrrole-functionalized diblock copolymer [poly(ethylene oxide)- block -poly(6-pyrrol-1-yl-hexyl methacrylate, PEO- b -PPHMA), with which well-defined mesostructured silica, polymer, and carbon materials can be simultaneously constructed .…”

Section: Introductionmentioning

confidence: 99%

Pyrrole-Containing ABA Triblock Brush Polymers as Dual Functional Molecules to Facilely Access Diverse Mesostructured Materials

Wang

Gao

et al. 2022

Macromolecules

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We report a new type of ABA-type brush-like triblock copolymer (PEGMA-b-PPHMA-b-PEGMA), which is characterized by two hydrophilic end segments (A) and a hydrophobic midblock (B) bearing polymerizable pyrrole moieties. This kind of symmetric triblock copolymers can not only serve as a structure-directing agent for the formation of mesoporous silicates but also function as a polymerizable monomer or carbon source for further chemical conversion to deliver mesostructured polymer or carbon materials within the preformed silicate framework. By utilizing such dual functional macromolecules, rich morphologies of mesostructures are accessible through microphase separation, and the order−order transition among cubic, lamellar, 2D hexagonal, and bicontinuous mesostructures is sensitively achievable by varying the hydrophilic volume fraction of copolymers and TEOS dosage. These features enable facile access to diverse mesostructured silica, polymer, and carbon materials. Remarkably, due to the brush-like polymer architecture and the formation of loop configuration, a widely tunable pore size from mesoscale to macroscale is realizable through using a relatively lower molecular weight copolymer. Importantly, it is found that the brush-like hydrophilic segments of our triblock copolymers can firmly anchor into the silica walls without appreciable escape of copolymer template in commonly used solvents even under reflux extraction, providing a prerequisite for reliable confined chemical transformation into mesostructured polymer and carbon materials. Our work demonstrates that the design and synthesis of functional amphiphilic block copolymers will bring great opportunity for the development of novel mesostructured materials.

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Functional Ordered Mesoporous Materials: Present and Future

Cited by 52 publications

References 27 publications

Pore-engineered nanoarchitectonics for cancer therapy

Pore-engineered nanoarchitectonics for cancer therapy

One-Pot Controllable Synthesis of Silica Nanocapsules with Encapsulated Osmanthus Fragrance for Durable Odor Improvement of Leather

Pyrrole-Containing ABA Triblock Brush Polymers as Dual Functional Molecules to Facilely Access Diverse Mesostructured Materials

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