Article
Thermodynamics
Jiali Hu, Ying Qian, Tongjuan Liu, Tingxuan Wu, Guangyu Zhang, Wei Zhang
Summary: In this study, a needled nonwoven (NNW) composed of polyphenylene sulfide fibers and pre-oxidized fibers was used as a substrate to incorporate silica aerogel (SiAG/NNW) for thermal insulation. The SiAG/NNW showed high temperature resistance and excellent thermal insulation, with the ability to withstand butane flame for 4 minutes at about 1300 degrees C. The SiAG/NNW also exhibited higher weight loss temperature and improved carbon residue rate compared to individual NNW or SiAG.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Civil
Abu Shaid, M. A. Rahman Bhuiyan, Lijing Wang
Summary: Aerogel-nonwoven fabrics are emerging as a promising alternative in thermal protective textiles, offering higher flexibility that significantly impacts clothing comfort and functionality.
FIRE SAFETY JOURNAL
(2021)
Article
Chemistry, Applied
Shengyuan Wang, Zhixiang Zhu, Ya Zhong, Jun Gao, Feng Jing, Sheng Cui, Xiaodong Shen
Summary: Hydrophobic SiO2 aerogels with superhydrophobic surfaces and low thermal conductivity are prepared using double silicon sources as co-precursors. The microstructure and chemical-physical properties of the aerogels treated at different temperatures are investigated. The TM and TE aerogels exhibit low thermal conductivity, high specific surface area, and good hydrophobicity, making them suitable for thermal insulation, catalysis, and environmental protection.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Engineering, Chemical
Chengdong Li, Qingsong Liu, Guihua Zhang, Liangliang Lin, Kostya (Ken) Ostrikov
Summary: In this study, crack-free polymethylsilsesquioxane (PMSQ) aerogel monoliths were successfully synthesized from methyltriethoxysilane (MTES) at ambient conditions. The phase separation of MTES was delayed by optimizing the concentration of cetyltrimethylammonium bromide (CTAB) surfactant in the sol, resulting in flat surfaces without cracks. The new synthesis method is 1.3-31.8 times faster than conventional processes and contributes to the development of green and scalable production technologies of silica aerogels.
Article
Chemistry, Physical
Dongxuan Du, Fengqi Liu, Yonggang Jiang, Junzong Feng, Liangjun Li, Jian Feng
Summary: Research has shown that fiber-reinforced aerogel composites synthesized using water as a solvent demonstrate simplified synthesis process and excellent thermal-mechanical performance, making them a promising efficient and economical insulation material.
Article
Materials Science, Textiles
Soumia Boukind, Said Sair, Hanane Ait Ousaleh, Said Mansouri, Mohamed Zahouily, Younes Abboud, Abdeslam El Bouari
Summary: This study presents a facile approach to develop super-insulating material based on silica aerogel reinforced with alfa nonwoven, using sol-gel process and vacuum compression molding. The results show that aerogel incorporation into the multiscale pores of the nonwoven improves the physical properties of the resulted composite and enhances hydrophobicity without affecting the low thermal conductivity.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Chemistry, Multidisciplinary
Agnieszka Slosarczyk
Summary: This study synthesized silica aerogel reinforced with short pitch carbon fibers from a cheaper precursor of water glass, resulting in improved mechanical and structural parameters of the composite. The presence of fibers in excess of 10% by volume also introduced a new function of the nanocomposite - the ability to conduct electric current.
Article
Chemistry, Applied
Zahra Niazi, Mohsen Ashjari, Yusef Janqamsari
Summary: By physically reinforcing the gel network with recycled PET fibers, the efficiency of ambient pressure drying is improved, resulting in silica aerogels with high surface area and porosity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Materials Science, Ceramics
Shengnan Zhai, Hongbo Wang, Jiajia Fu, Kejing Yu, Chaoran Meng
Summary: A novel method of improving the thermal protection performance of protective materials in high temperature flame environment was proposed. The prepared aramid fiber fabric reinforced hybrid silica aerogel composite (AF-HSiO2) exhibited excellent properties and significantly increased thermal protection performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Jiaqi Yao, Xiangdong Gao, Yongqing Wu, Xiang Zhao, Xiaomin Li
Summary: This study demonstrates a simple and effective method to prepare highly thermal resistant aluminum doped silica aerogel (ASA) via sol-gel and ambient pressure drying using water glass and aluminum chloride as precursors. The effects of the Al/Si molar ratio in the precursor, calcination temperature, and modifier type on the structure and heat resistance performance of ASA are investigated. The results show that the Al/Si ratio and calcination temperature significantly affect the properties of ASA at temperatures ranging from 600 to 1000 degrees C.
CERAMICS INTERNATIONAL
(2022)
Review
Environmental Sciences
Faheem Akhter, Abdul Rauf Jamali, Mahmood Nabi Abbasi, Mukhtiar Ali Mallah, Ahsan Atta Rao, Shafeeque Ahmed Wahocho, Hafiz Anees-ur-Rehman, Zubair Ahmed Chandio
Summary: The hydrophobicity of silica and composite aerogels has made them widely applicable in various fields. These materials have attracted global researchers' attention due to their remarkable structural, morphological, and physiochemical properties, such as high porosity, surface area, chemical stability, and selectivity. They can adsorb substances, such as organic pollutants, without collapsing the pore and network structure. Exploiting these materials for environmental and biomedical applications is a trending topic due to their exceptional properties and great adsorption potential. This study explores the synthetic approaches, resulting properties, and recent advances in the application of hydrophobic silica and composite aerogels, with a focus on environmental remediation and biomedical applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Engineering, Chemical
Jaya Sharma, Javed Sheikh, B. K. Behera
Summary: Aerogels are three-dimensional nanostructures made of non-fluid colloids connected to porous networks. They are often manufactured using the sol-gel technique and drying procedures like supercritical, freeze, or ambient pressure drying. Aerogels are the lightest solid material with excellent insulation properties. However, their brittleness and porous nature make their processing and handling complex, limiting their applicability in real-world dynamic situations.
Article
Engineering, Chemical
Maryam Fashandi, Zeineb Ben Rejeb, Hani E. Naguib, Chul B. Park
Summary: Silica aerogels are suitable for water remediation and thermal insulation applications due to their low density, high surface area, and thermal insulation properties. However, their fabrication process is lengthy and costly, and they are fragile. By incorporating a flexible melamine foam (MF) and a co-precursor system, the fabrication process of silica aerogels can be improved and their durability enhanced. The MF-aerogel composite exhibited superhydrophobicity, self-cleaning properties, and excellent oil adsorption and oil-water separation performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Subramaniam Iswar, Sandra Galmarini, Luca Bonanomi, Jannis Wernery, Eleftheria Roumeli, Sudheera Nimalshantha, Avner M. Ben Ishai, Marco Lattuada, Matthias M. Koebel, Wim J. Malfait
Summary: This paper investigates the synthesis of silica aerogel granules using ambient pressure drying to enhance mechanical stiffness while maintaining low thermal conductivity. By optimizing aging and drying conditions, dense but superinsulating silica aerogels were produced, challenging traditional understanding of heat transport in aerogels.
Article
Engineering, Environmental
Selay Sert Cok, Fatos Koc, Nilay Gizli
Summary: This study demonstrated that silica aerogels modified with TMCS and MTMS exhibit good hydrophobicity, high adsorption capacity, and enduring adsorption property, making them promising candidates for oil/organic solvent clean up practices.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Applied
Vahid Heydari, Zaker Bahreini, Majid Abdouss
Summary: Thermal control coatings (TCCs) are used to maintain the thermal condition of spacecraft by reflecting and emitting radiation, and porous ZnO particles as pigments prevent UV absorption.
PIGMENT & RESIN TECHNOLOGY
(2023)
Review
Polymer Science
Mehrnoosh Hasan Shahriari, Afra Hadjizadeh, Majid Abdouss
Summary: This review study presents the development of self-healing hydrogels, which have the property of self-healing and can be used for repairing biological defects in the whole body. It discusses the synthesis methods, types of polymers, and clinical applications of self-healing hydrogels, focusing on their recent ability to repair tissue defects.
Article
Materials Science, Composites
Mehdi Moghri, Mohammad Reza Kalaee, Majid Abdouss, Mojtaba Koosha
Summary: In this study, nanocomposites of polyvinyl chloride poly(epichlorohydrin-co-ethylene oxide)(ECO)/organoclay were prepared via melt processing and various parameters were adjusted to achieve the highest thermal stability. The results showed that the rotor speed and rubber content greatly influenced the intercalation and thermal stability of the nanocomposites. The hydrogen bonding between ECO and organoclay was found to be crucial for the miscibility of the components.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Polymer Science
Tajuddin Hafizi, Mehrnoosh Hasan Shahriari, Majid Abdouss, Shafiq Ahmad Kahdestani
Summary: Chitosan, a linear polysaccharide with excellent properties, has been used to prepare drug nanocarriers. In this study, chitosan nanoparticles were successfully prepared and loaded with vancomycin, demonstrating a sustained drug release.
Article
Biotechnology & Applied Microbiology
Maral Nouri Hajbaba, Mehrab Pourmadadi, Fatemeh Yazdian, Hamid Rashedi, Majid Abdouss, Dina Sadat Zhohrabi
Summary: This research evaluated the effects of chitosan/agarose-functionalized Fe2O3 nanoparticles on MCF-7 breast cancer cells and the expression of BCL2 and BAX genes. The results showed that the formulated nanoparticles induced apoptosis and inhibited cell migration in the cancer cells through modulating gene expression.
BIOTECHNOLOGY PROGRESS
(2023)
Article
Materials Science, Paper & Wood
Mohammad Shadabfar, Morteza Ehsani, Hossein Ali Khonakdar, Majid Abdouss, Tayebeh Ameri
Summary: This study demonstrates a novel and environmentally-friendly method for synthesizing a conductive carbon paste by using carboxymethyl cellulose (CMC) as an eco-friendly binder combined with Graphene Nanoplatelets (GNPs) and Carbon Nanotubes (CNTs). The double-coated GNP/CNT/CMC paste films exhibit high electrical conductivity (80.4 S/m) and great flexibility. The results suggest that the developed conductive carbon paste has the potential to be used in various electronic devices.
Article
Chemistry, Physical
Mohammad Mohammadizadeh Boghrabad, Elaheh Kowsari, Seeram Ramakrishna, Saeedeh Sarabadani Tafreshi, Mahsa Gholambargani, Mahboobeh Rafieepoor Chirani, Shiva Orangi, Mohammad Gheibi, Majid Abdouss, Amutha Chinnappan, Nora H. de Leeuw
Summary: Covalently multifunctional graphene oxide (GO) with vinyl imidazole/4-tert-butylpyridine cobalt complex (GO-VI/TBP cobalt complex) was synthesized. This synthesized compound was used as an effective additive in sustainable nanocomposite electrolytes in dye-sensitized solar cells (DSSCs), increasing the conversion efficiency significantly. The addition of the compound enhanced the ion conductivity and electron transfer in the electrolyte, resulting in increased short circuit current density and open-circuit voltage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Pharmacology & Pharmacy
Sepehr Darvishan, Mehrab Pourmadadi, Majid Abdouss, Saeedeh Mazinani, Fatemeh Yazdian, Abbas Rahdar, Ana M. Diez-Pascual
Summary: A novel PAA-based hydrogel coated with ?-alumina modified with PVP was synthesized for the delivery of quercetin to cancer cells. The addition of Al2O3 increased pH-sensitivity, and the use of Span 80 surfactant led to a nano niosomal emulsion that improved stability and retention of quercetin. The microemulsion's physical interactions, crystalline structure, and morphology were analyzed, and drug loading efficiency was significantly improved with the double emulsion method. The developed ?-alumina-PAA/PVP nanoemulsion shows promise as a pH-sensitive drug delivery system.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Saman Jafari Dovom-Niasar, Azadeh Seifi, Ahmad Reza Bahramian, Ali Abzal
Summary: An epoxy-based intumescent coating with silica and zinc borate nanoparticles was developed. The fire performance of the coating was studied by analyzing the changes in the physical and chemical structure of the char layer formed at a temperature of 1000 degrees C. The results showed that the physical structure of the char layer exhibited some instabilities during the heating process, while the formation of silicon carbide and boron nitride was observed on the surface and in the bulk of the coating, respectively.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2023)
Article
Polymer Science
Zahra Norouzi, Majid Abdouss
Summary: Considering the depletion of water resources, wastewater treatment is important for protecting the ecosystem and efficient use of water resources. In this study, beta-cyclodextrin was grafted onto chitosan to form beta-cyclodextrin grafted chitosan, which was further improved by developing nanofibers. The blend nanofibers were fabricated by electrospinning and their performance as molecular filters for removing hazardous materials from wastewater was investigated.
Article
Engineering, Chemical
Mehrnoosh Hasan Shahriari, Majid Abdouss, Afra Hadjizadeh
Summary: In this study, a new type of starch/chitosan/PVA/borax hydrogel was synthesized by adopting the one-pot method. The effect of concentration and ratio of raw materials on the final properties of hydrogels was investigated. The properties of the hydrogels were examined using various techniques, and it was found that the composite hydrogel had excellent mechanical properties and showed slow drug release.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Neda Rostami, Mohammad Mahmoudi Gomari, Majid Abdouss, Alaa Moeinzadeh, Edris Choupani, Reza Davarnejad, Reza Heidari, Sidi A. Bencherif
Summary: In this study, biodegradable LTZ-loaded nanocarriers were synthesized, and folic acid was conjugated to enhance targeted delivery and improve efficacy and safety. The nanocarriers exhibited excellent cell compatibility and high drug loading capacity, allowing sustained release of LTZ and enhanced cytotoxicity against hormone-dependent breast cancer cells.
ACS APPLIED BIO MATERIALS
(2023)
Article
Biotechnology & Applied Microbiology
Maryam Arsalanfar, Azita Nouri, Majid Abdouss, Esmaeil Rezazadeh
Summary: This study evaluated Al2O3 supported Co-Ni nanocatalysts for the production of light olefins under different process conditions. Various techniques were used to characterize the catalysts and the impact of temperature, pressure, and feed ratio on the catalytic performance was investigated. The optimum process conditions were obtained using the Response Surface Methodology with the highest selectivity of light olefins achieved at a desirability value of 0.896.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Soroush Nardini, Mohammad Sharifi, Jalal Fahimpour, Majid Abdouss
Summary: The effective factors of surfactant adsorption in an electrolyte-mineral solid system were investigated in this study. Results showed that increasing salinity reduced the adsorption of the surfactant on calcite, while the presence of magnesium and sulfate ions led to a decrease in adsorption. The findings can be used in controlling surfactant adsorption and designing wettability alteration processes.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Sayeh Shakouri, Mehrab Pourmadadi, Majid Abdouss, Abbas Rahdar, Sadanand Pandey
Summary: Breast cancer is the second leading cause of death among females. With the help of nanotechnology, a CNT-PAA-PVP@5-FU drug delivery system has been developed to transport anticancer medications with reduced side effects. The experimental results demonstrate that this nanocarrier exhibits higher cytotoxicity against breast cancer cells and has pH-dependent and controlled release properties in different environments.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)