Hydrophilic/hydrophobic surface modification impact on colloid lithography: Schottky-like defects, dislocation, and ideal distribution

Primary intraocular lymphoma (PIOL) is a rare form of lymphoma which is encountered in ocular oncology practice. Most preferred treatment has been intravitreal MTX injections which do not have a long lasting chemotherapeutic effect due to rapid elimination of the drug. In this study, chitosan (CS) and polylactic acid (PLA) based intraocular implants are fabricated for different MTX loadings (10%, 25% and 40% w/w). The implants administer a therapeutic dosage of 0.2–2.0 μg/day of MTX over a period of a month. PLA coated CS-MTX implants can be used for sustained release of MTX, thereby improving the treatment of PIOL.

Download Full-text

Improved oxidation of hydrogen off-gas by hydrophobic surface modification: A multiscale density functional theory study

Particuology ◽

10.1016/j.partic.2018.04.002 ◽

2019 ◽

Vol 44 ◽

pp. 28-35 ◽

Cited By ~ 2

Author(s):

Cheng Lian ◽

Cheng Cai ◽

Xiangjian Shen ◽

Shuangliang Zhao ◽

Xinhai Yu ◽

...

Keyword(s):

Density Functional Theory ◽

Surface Modification ◽

Density Functional ◽

Hydrophobic Surface ◽

Density Functional Theory Study ◽

Functional Theory ◽

Oxidation Of Hydrogen

Download Full-text

PDMS Surface Modification Using Biomachining Method for Biomedical Application

Journal of Biomimetics Biomaterials and Biomedical Engineering ◽

10.4028/www.scientific.net/jbbbe.26.66 ◽

2016 ◽

Vol 26 ◽

pp. 66-72 ◽

Cited By ~ 8

Author(s):

Yudan Whulanza ◽

Hanif Nadhif ◽

Jos Istiyanto ◽

Sugeng Supriadi ◽

Boy Bachtiar

Keyword(s):

Surface Roughness ◽

Surface Modification ◽

Cell Attachment ◽

Biomedical Application ◽

Hydrophobic Surface ◽

Polydimethyl Siloxane ◽

Lab On Chip ◽

Pdms Surface ◽

A Cell ◽

On Chip

Engineering a cell-friendly material in a form of lab-on-chip is the main goal of this study. The chip was made of polydimethyl siloxane (PDMS) with a surface modification to realize a groovy structure on its surface. This groovy surface was naturally and randomly designed via biomachining process. This measure was aimed to improve the cell attachment on the PDMS surface that always known as hydrophobic surface. The biomachined surface of mold and also products were characterized as surface roughness and wettability. The result shows that the biomachining process were able to be characterized in three classes of roughness on the surface of PDMS.

Download Full-text

The effect of hydrophobic surface modification on bulk cohesive strength

Powder Technology ◽

10.1016/j.powtec.2009.03.016 ◽

2009 ◽

Vol 194 (1-2) ◽

pp. 1-9 ◽

Cited By ~ 1

Author(s):

Kerry Johanson ◽

J.D. Miller ◽

C.L. Lin

Keyword(s):

Surface Modification ◽

Hydrophobic Surface ◽

Cohesive Strength

Download Full-text

Maghemite Nanocrystal Impregnation by Hydrophobic Surface Modification of Mesoporous Silica

Langmuir ◽

10.1021/la063395u ◽

2007 ◽

Vol 23 (17) ◽

pp. 8838-8844 ◽

Cited By ~ 32

Author(s):

Robert P. Hodgkins ◽

Anwar Ahniyaz ◽

Kinnari Parekh ◽

Lyubov M. Belova ◽

Lennart Bergström

Keyword(s):

Surface Modification ◽

Mesoporous Silica ◽

Hydrophobic Surface

Download Full-text

Surface Organic Modification of CaCO3-TiO2 Composite Pigment

Minerals ◽

10.3390/min9020112 ◽

2019 ◽

Vol 9 (2) ◽

pp. 112

Author(s):

Sijia Sun ◽

Hao Ding ◽

Yanpeng Zha ◽

Wanting Chen ◽

Zhuoqun Xu

Keyword(s):

Surface Modification ◽

Sodium Stearate ◽

Hydrophobic Surface ◽

Infrared Spectrometry ◽

Organic Modifier ◽

Mechanical Grinding ◽

X Ray ◽

Chemical Combination ◽

Organic Matrices ◽

Ultra Fine Grinding

To improve the properties and dispersibility of CaCO3-TiO2 composite pigments (CaCO3-TiO2) in organic matrices, the surface modification of CaCO3-TiO2 was performed with sodium stearate (SS) as an organic modifier by wet ultra-fine grinding in a stirred mill. The pigment properties of modified CaCO3-TiO2 and its dispersibility in organic media were tested and characterized. The binding mechanism between CaCO3-TiO2 and SS was explored by infrared spectrometry (IR) and X-ray photoelectron energy spectroscopy (XPS). The results showed that the mechanical grinding strength and SS dosage had a significant effect on the activation index and sedimentation rate of CaCO3-TiO2. After surface modification, the surface of CaCO3-TiO2 turned from a hydrophilic surface to a hydrophobic surface and the surface free energy was reduced. In addition, the hiding property and dispersibility of CaCO3-TiO2 in the organic medium were significantly improved. IR and XPS results indicated that the modifier SS was adsorbed on the surface of CaCO3-TiO2 by chemical combination.

Download Full-text