Stepwise surface modification of mesoporous silica and its use in poly(urethane‐urea) composite films

Manipulating surface modification through a selective thermal treatment, an adsorbent with high hydrophobicity and adsorption selectivity for toluene was fabricated.

Download Full-text

Surface modification of mesoporous silica by radiation induced graft polymerization of styrene and subsequent sulfonation for ion‐exchange applications

Journal of Applied Polymer Science ◽

10.1002/app.48835 ◽

2020 ◽

Vol 137 (26) ◽

pp. 48835 ◽

Cited By ~ 1

Author(s):

Ijaz A. Khan ◽

Hazrat Hussain ◽

Tariq Yasin ◽

Muhammad Inaam‐ul‐Hassan

Keyword(s):

Surface Modification ◽

Ion Exchange ◽

Mesoporous Silica ◽

Graft Polymerization ◽

Radiation Induced

Download Full-text

Layer by Layer Mesoporous Silica-Hyaluronic Acid-Cyclodextrin Bifunctional “Lamination”: Study of the Application of Fluorescent Probe and Host–Guest Interactions in the Drug Delivery Field

Materials ◽

10.3390/ma11091745 ◽

2018 ◽

Vol 11 (9) ◽

pp. 1745 ◽

Cited By ~ 1

Author(s):

Kun Nie ◽

Qi An ◽

Jeffrey Zink ◽

Xiang Yu ◽

Yihe Zhang

Keyword(s):

Hyaluronic Acid ◽

Mesoporous Silica ◽

Laser Scanning ◽

Fluorescent Dyes ◽

Mesoporous Silica Nanoparticles ◽

Composite Films ◽

Fluorescein Isothiocyanate ◽

Layer By Layer ◽

Layer Technique ◽

Growth Profiles

The layer-by-layer technique was exploited to adjust the magnitude of the host–guest interactions between adamantane and cyclodextrin. The effect depends on numerous complex and changeable growth profiles of the films and the number of bilayers. These composite films of mesoporous silica nanoparticles and hyaluronic acid–cyclodextrin(HA-CD) were constructed to load the fluorescent dyes and peptides. The release rates of these molecules would decrease with an increase in the number of layers. A laser scanning confocal microscope was utilized to obtain the diffusion coefficient of fluorescein isothiocyanate. Hybrid films could be applied to increase the loading of different kinds of molecules and could also be integrated into the lamination to delay the rate of release.

Download Full-text

Amino-attapulgite/mesoporous silica composite films generated by electro-assisted self-assembly for the voltammetric determination of diclofenac

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2019.02.038 ◽

2019 ◽

Vol 287 ◽

pp. 296-305 ◽

Cited By ~ 7

Author(s):

Sherman L.Z. Jiokeng ◽

Ignas K. Tonle ◽

Alain Walcarius

Keyword(s):

Mesoporous Silica ◽

Self Assembly ◽

Composite Films ◽

Voltammetric Determination ◽

Silica Composite

Download Full-text

Impedance spectroscopy of novel hybrid composite films of polyvinylbutyral (PVB)/functionalized mesoporous silica

Composites Part B Engineering ◽

10.1016/j.compositesb.2013.10.050 ◽

2014 ◽

Vol 58 ◽

pp. 134-139 ◽

Cited By ~ 18

Author(s):

Aashis S Roy ◽

Satyajit Gupta ◽

Sindhu Seethamraju ◽

Giridhar Madras ◽

Praveen C Ramamurthy

Keyword(s):

Impedance Spectroscopy ◽

Mesoporous Silica ◽

Hybrid Composite ◽

Composite Films ◽

Functionalized Mesoporous Silica

Download Full-text

A facile FeBr3 based photoATRP for surface modification of mesoporous silica nanoparticles for controlled delivery cisplatin

Applied Surface Science ◽

10.1016/j.apsusc.2017.10.187 ◽

2018 ◽

Vol 434 ◽

pp. 204-210 ◽

Cited By ~ 17

Author(s):

Long Huang ◽

Meiying Liu ◽

Liucheng Mao ◽

Qiang Huang ◽

Hongye Huang ◽

...

Keyword(s):

Surface Modification ◽

Mesoporous Silica ◽

Silica Nanoparticles ◽

Mesoporous Silica Nanoparticles ◽

Controlled Delivery

Download Full-text

Fabrication and characterization of polyimide/Al2O3 composite films via surface modification and ion exchange technique

Pigment & Resin Technology ◽

10.1108/prt-01-2015-0009 ◽

2016 ◽

Vol 45 (1) ◽

pp. 30-37 ◽

Cited By ~ 3

Author(s):

M.Y. Zhang ◽

L.Z. Liu ◽

L. Weng ◽

W.W. Cui ◽

K.S. Hui

Keyword(s):

Surface Modification ◽

Ion Exchange ◽

Breakdown Strength ◽

Composite Films ◽

Annealing Treatment ◽

Ambient Air ◽

Ammonia Solution ◽

Excellent Thermal Stability ◽

Content Type ◽

General Importance

Purpose – The aim of this study was to fabricate polyimide (PI)/Al2O3 composite films via surface modification and ion exchange techniques, and examine their properties. Design/methodology/approach – The method involves hydrolyzing the PI film double surface layers in an aqueous potassium hydroxide (KOH) solution and incorporating aluminium ions (Al3+) into the hydrolyzed layers of the PI film via subsequent ion exchange, followed by a treatment of the Al3+-loaded PI films with an aqueous ammonia solution, which leads to the formation of Al(OH)3 in the surface-modified layers. After a final thermal annealing treatment in ambient air, the Al(OH)3 decomposes to Al2O3, and forms composite layers on both surfaces of the re-imidized PI film. Findings – The PI/Al2O3 composite film obtained with a 6 hours of KOH treatment exhibited excellent thermal stability, good mechanical properties and better electric breakdown strength and corona-resistance properties than the pristine PI film. Practical implications – The method for obtaining the composite films in this paper is worth consideration, but additional research will be needed. Furthermore, this method is of general importance for the fabrication of composite PI films with tailored properties. Originality/value – This study showed that surface modification and ion-exchange techniques are powerful methodologies for the fabrication of PI/Al2O3 composite films.

Download Full-text