Article
Polymer Science
Dusadee Tumnantong, Kuachon Srisamrid, Sirilux Poompradub, Pattarapan Prasassarakich
Summary: PMMA-RAFT-SiO2 nanocomposite emulsion was synthesized via differential microemulsion polymerization and reversible addition-fragmentation chain transfer polymerization. The addition of SiO2 enhanced the physical properties of the composite membranes, resulting in good mechanical properties and high separation performance.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yue Zan, Lionel Salmon, Azzedine Bousseksou
Summary: SCO@SiO2 nanoparticles based on 1,2,4-triazole iron (II) coordination compounds were prepared using a reverse microemulsion technique. The thickness of the silica shell and the morphology of the nanoparticles were studied by adjusting the polar phase/surfactant ratio, TEOS precursor quantity, ammonia quantity, and reaction temperature. The controllable size and silica shell thickness of the nanoparticles open up possibilities for post-synthetic modifications. The evolution of spin crossover properties with morphological changes was investigated through variable temperature optical and magnetic measurements.
Article
Chemistry, Physical
Chaolan Yang, Yang Xuan, Shaocong Pang, Yuxiu An
Summary: In this study, nano-micron copolymers were successfully synthesized using two different methods to improve the performance of acrylamide polymers in harsh reservoir conditions. The results showed that the copolymer synthesized using one of the methods exhibited better thickening ability, temperature resistance, salt resistance, and aging stability.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jonas Blahnik, Sebastian Krickl, Klaus Schmid, Eva Mueller, John Lupton, Werner Kunz
Summary: This article presents a free-radical polymerization method in a mesostructured system without surfactants or other auxiliary agents. The aim is to study the impact of surfactant-free mesostructuring on polymerization kinetics and derived polymers.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Jesus Alberto Garibay-Alvarado, Ericka Berenice Herrera-Rios, Claudia Lucia Vargas-Requena, Alvaro de Jesus Ruiz-Baltazar, Simon Yobanny Reyes-Lopez
Summary: The study successfully prepared silica-hydroxyapatite non-woven ceramic electrospun membranes via the sol-gel method, with promising structural characteristics for bone regeneration. Testing in vitro revealed high viability of fibroblast cell lines on the SiO2-HA composite fibers, indicating potential for the development of materials for bone regeneration.
Article
Chemistry, Applied
Yong Wang, Feng Cao, Yunlei Fu, Hanchu Chen, Yuxiang Zhang, Chuanqi Wang, Yanyan Li, Hui Wang
Summary: Poly(acrylonitrile-co-butadiene) nanoparticles were synthesized by semibatch microemulsion polymerization. The microstructure of the polymers was characterized by 1H NMR and FT-IR. The particle size of the nitrile butadiene rubber (NBR) latex could be well controlled by reaction temperature, surfactant concentration, and feeding time of monomer. The minimum particle size of 34.2 nm could be achieved by using the surfactant/ monomer mass fraction of 7.9 wt%. The latex can be directly catalyzed for hydrogenation using Wilkinson's catalyst (RhCl(PPh3)3) and second generation Grubbs catalyst (Grubbs II), respectively. The hydrogenated products (HNBR) with a degree of hydrogenation above 95 mol% were obtained. The fast rate of hydrogenation demonstrates the unique advantages of small particle size.
Article
Chemistry, Multidisciplinary
Keroles B. Riad, Suong Hoa, Paula M. Wood-Adams
Summary: Embedding quantum dots in a silica matrix can overcome instability challenges in applications while preserving their unique properties and applicability.
Article
Polymer Science
Mina Seidy Esfahlan, Elnaz Khodapanah, Seyyed Alireza Tabatabaei-Nezhad, Mehdi Salami-Kalajahi
Summary: A new method for synthesizing PPG with nanogels inside them at high temperature and high salinity conditions was introduced in this study. The new PPG showed higher water absorbance capacity and swelling rate compared to ordinary PPG, making it suitable for deep reservoir conformance control.
Article
Polymer Science
Yen-Zen Wang, Yu-Wei Cheng, Lin-Chia Ho, Wen-Yao Huang, Ko-Shan Ho, Yu-Ting Syu
Summary: Oleic acid-modified Fe3O4 nanoparticles were successfully covered with polyanilines through inverse suspension polymerization, resulting in the formation of superparamagnetic ferrite and α''-Fe16N2 mixture at high temperature. The magnetic saturation of the calcined iron-composites slightly decreases after 3 months of storage, but remains relatively high.
Article
Mechanics
Jingjing Shen, Hongbin Yang, Dexin Liu, Wanli Kang, Haizhuang Jiang, Jiting Hao, Huazheng Wang, Zhiqi Lv, Sarsenbek Turtabayev
Summary: This study successfully synthesized a series of nano-SiO2 grafted modified polymers (MNSP) through controllably modifying nano-SiO2, and analyzed the rheological properties of MNSP. The influence of the concentration and modification degree of nano-SiO2 on the rheological properties of MNSP was explored from a microscopic standpoint. The addition of modified nano-SiO2 improved the solution viscosity of MNSP, but excessive addition interfered with polymerization and resulted in inferior polymer characteristics.
Article
Polymer Science
Antonina Simakova, Saadyah Averick, Arman Moini Jazani, Krzysztof Matyjaszewski
Summary: This article reports a method for preparing cationic nanogels by atom transfer radical polymerization under inverse microemulsion conditions. The use of a hydrophilic inimer prevents the growth of droplets during polymerization. The surface functionality of the nanogels can be modulated by applying different reactive surfactants or grafting hydrophilic shells. The synthesized cationic nanogels are biocompatible and have a high complexation ability for plasmid DNA.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Mohammad Reza Mohammadpour, Shadi Hassanajili
Summary: The effect of modified nanoparticles on the thermal stability and rheological properties of polymers was investigated. The results showed that the modified nanoparticles could improve the rheological properties and dispersion of the polymer, and reduce thermal degradation.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Pierre Picchetti, Guillermo Moreno-Alcantar, Laura Talamini, Adrien Mourgout, Alessandro Aliprandi, Luisa De Cola
Summary: This study demonstrates the use of redox-responsive nanocontainers to control the dynamic self-assembly pathway of luminescent platinum compounds, allowing for the release of trapped species on demand and stabilization of out-of-equilibrium states. The application of nanocontainers inside living cells highlighted the potential for controlling self-assembly pathways in complex media.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Sofia F. Soares, Sara Fateixa, Tito Trindade, Ana L. Daniel-da-Silva
Summary: A versatile synthetic route was reported for the preparation of nearly monodispersed spherical gelatin-silica hybrid nanoparticles. The method is effective for both gelatin type A and B, using different alkoxysilane coupling agents. ICPTES is more suitable for producing uniform nanospheres with narrow size distribution, while GPTMS increases the surface roughness of the particles. The hybrids are thermo-sensitive and can be used for thermally controlled drug-delivery systems.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Materials Science, Ceramics
Koji Kuraoka, Ryoga Yamamoto
Summary: Polyacrylamide (PAAm)-silica organic-inorganic hybrid membranes were prepared for carbon dioxide (CO2) separation. The membranes showed high ideal separation factor for CO2/N-2 at 298 K, and also exhibited high CO2 selectivity in a gas mixture of 50%CO2-50%N-2.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Sanjeev Kumar, Vaishali Singh, Uttam K. Mandal, K. Kotnala
INORGANICA CHIMICA ACTA
(2015)
Article
Materials Science, Multidisciplinary
Sanjeev Kumar, Pankaj Kumar, Vaishali Singh, Uttam Kumar Mandal, Ravinder Kumar Kotnala
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2015)
Article
Crystallography
Suhasini Kunchakara, Jyoti Shah, Vaishali Singh, R. K. Kotnala
Article
Chemistry, Physical
Sanjeev Kumar, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal
COLLOID AND POLYMER SCIENCE
(2009)
Article
Materials Science, Composites
Sanjeev Kumar, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal, Ravinder Kumar Kotnala
COMPOSITES SCIENCE AND TECHNOLOGY
(2010)
Article
Chemistry, Physical
Sujata Singh, Pallavi Bhardwaj, V. Singh, S. Aggarwal, U. K. Mandal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2008)
Article
Polymer Science
Pallavi Bhardwaj, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2009)
Article
Materials Science, Multidisciplinary
Sanjeev Kumar, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal, R. K. Kotnala
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2012)
Article
Materials Science, Multidisciplinary
Pallavi Bhardwaj, Vaishali Singh, Uttam Kumar Mandal, Saroj Aggarwal
JOURNAL OF MATERIALS SCIENCE
(2010)
Article
Chemistry, Physical
Sanjeev Kumar, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal, Ravinder Kumar Kotnala
JOURNAL OF PHYSICAL CHEMISTRY C
(2010)
Article
Materials Science, Multidisciplinary
Sanjeev Kumar, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal, R. K. Kotnala
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2010)
Article
Materials Science, Multidisciplinary
Sanjeev Kumar, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal
Article
Chemistry, Multidisciplinary
Sujata Singh, Vaishali Singh, Saroj Aggarwal, Uttam Kumar Mandal
Article
Materials Science, Biomaterials
Christopher Igwe Idumah, I. C. Nwuzor, S. R. Odera, U. J. Timothy, U. Ngenegbo, F. A. Tanjung
Summary: This paper presents recent advancements in drug delivery applications of polymeric hydrogel nanoarchitectures and hydrogel derivatives, including the incorporation of nanoparticulates and the enhancement of the chemical, biological, electrical, and mechanical properties of hydrogels. The application of magnetically responsive and smart hydrogels as drug delivery systems is also discussed.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2024)
Article
Materials Science, Biomaterials
Remya K. Rajan, Sunitha Chandran, Annie John, Ramesh Parameswaran
Summary: This study outlines the fabrication and characterization of pamidronate (PDS) embedded nanofibrous scaffolds based on polycaprolactone/polycaprolactone-polyethyleneglycol-polycaprolactone (PCL/CEC) blends for osteoporotic bone defect management. The electrospinning technique was utilized to fabricate PDS-loaded scaffolds, and the effect of PDS on the blends was evaluated in terms of surface morphology, wettability, biodegradability, and in vitro cytocompatibility. The results showed that the PCL/CEC-PDS scaffolds had a fibroporous architecture, appropriate mechanical properties, and the ability to support cell growth, indicating their potential for managing osteoporotic bone defects.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2024)
Article
Materials Science, Biomaterials
Kubra Aydin, Handan Sevim, Hatice Kaplan Can
Summary: This study aims to develop a new dental material by designing, synthesizing, and characterizing nanocomposites, and evaluate their cytotoxic effects on human gingival fibroblasts. The results of this research will contribute to a better understanding of the properties and safety of this material, providing reference for clinical applications in dentistry.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2024)
Review
Materials Science, Biomaterials
Angelica Jimenez-Rosales, Stefani Cortes-Camargo, Pedro Estanislao Acuna-Avila
Summary: The immune response to drug-delivering systems and implanted medical devices based on biomaterials is complex, and the goal is to design biomaterials that can respond to stimuli, preserve tissue function, and optimize cellular structures. Understanding the material's structure and location, as well as the severity of damage and other factors, is crucial in developing biocompatible biomaterials.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2024)
Article
Materials Science, Biomaterials
Fatemeh Daliri Shadmehri, Ehsan Karimi, Ehsan Saburi
Summary: Bone tissue engineering utilizes polymeric scaffolds and stem cells to create a supportive matrix resembling the in vivo environment for bone repair. The study found that a composite matrix of polycaprolactone and fibrin enhanced the differentiation of adipose-derived stem cells into osteo-like cells.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2024)