Antibacterial Drug Releasing Materials by Post-Polymerization Surface Modification

Functional materials are available by the post-polymerization surface modification of diverse polymers in a three-step process mediated, firstly, by carbene insertion chemistry, secondly, by diazonium coupling, and thirdly by modification with a remotely tethered spiropyran unit, and these materials may be used for the reversible binding and release of Penicillin V. Surface loading densities of up to 0.19[Formula: see text]mmol/g polymer are achievable, leading to materials with higher loading densities and release behavior relative to unmodified controls, and observable antibacterial biocidal activity.

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Functionalized aluminum-catalyzed silicon nanowire formation and radial junction photovoltaic devices

Nanoscale ◽

10.1039/d1nr00312g ◽

2021 ◽

Author(s):

Wipakorn Jevasuwan ◽

Naoki Fukata

Keyword(s):

Surface Modification ◽

Solar Cells ◽

Surface Defects ◽

Silicon Nanowire ◽

Photovoltaic Devices ◽

Step Process ◽

One Step ◽

Length Reduction

Vertical Al-catalyzed SiNW arrays with shaped surfaces were synthesized by a one-step process and NW-based solar cells were demonstrated with optimized NW surface defects through surface modification and length reduction.

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Surface modification for creation of functional materials in molten salts and their application from cryogenic to ultrahigh temperatures

Journal of Physics Conference Series ◽

10.1088/1742-6596/1347/1/012001 ◽

2019 ◽

Vol 1347 ◽

pp. 012001

Author(s):

S A Kuznetsov ◽

A R Dubrovskiy

Keyword(s):

Surface Modification ◽

Molten Salts ◽

Functional Materials

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Surface Modification with Dopamine and Heparin/Poly-l-Lysine Nanoparticles Provides a Favorable Release Behavior for the Healing of Vascular Stent Lesions

ACS Applied Materials & Interfaces ◽

10.1021/am5015309 ◽

2014 ◽

Vol 6 (11) ◽

pp. 8729-8743 ◽

Cited By ~ 47

Author(s):

Tao Liu ◽

Zheng Zeng ◽

Yang Liu ◽

Jian Wang ◽

Manfred F. Maitz ◽

...

Keyword(s):

Surface Modification ◽

Release Behavior ◽

Vascular Stent

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Implications for the biofunctionalization of drug-eluting devices at the example of a site-selective antibody modification for drug eluting stents

BioNanoMaterials ◽

10.1515/bnm-2015-0009 ◽

2015 ◽

Vol 16 (4) ◽

Cited By ~ 1

Author(s):

Svea Petersen ◽

Christiane Häcker ◽

Gökmen Turan ◽

Stefanie Knödler ◽

Andreas Brodehl ◽

...

Keyword(s):

Surface Modification ◽

Storage Conditions ◽

General Information ◽

Drug Eluting Stents ◽

Surface Loading ◽

Surface Functionality ◽

Drug Eluting ◽

A Site ◽

Selective Immobilization ◽

Site Selective

AbstractFunctionality of implant surfaces is considerably determined by the conformations of immobilized biomolecules adjustable by the applied surface modification approach. Moreover, surface modification of drug eluting systems often needs to be thoroughly optimized with regard to possible drug losses associated with a loss of functionality. Here, we thoroughly investigate biomolecule surface loading, functionality, morphology and stability in dependence of modification conditions at the example of a site-selective immobilization of anti-CD34 antibodies (CD34-Ab) to drug-eluting stents with the aim of providing general information on the biofunctionalization of drug eluting systems. In this context, we demonstrate that the reaction time of biomolecule immobilization defines achievable surface loads but also drug loss. We could moreover show that the used site-selective immobilization procedure elevated the surface functionality considerably in comparison to surfaces modified by random physisorption. Furthermore investigated bionfunctional stability gives important indications for storage conditions of biofunctionalized implants.

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Single step process for particles surface modification or thin film composite production1

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2008.11.040 ◽

2009 ◽

Vol 137 (1) ◽

pp. 170-179 ◽

Cited By ~ 4

Author(s):

R.R. Lima ◽

R.A.M. Carvalho ◽

L.M. Silva ◽

E.W. Simões ◽

M.L.P. da Silva

Keyword(s):

Thin Film ◽

Surface Modification ◽

Single Step ◽

Step Process ◽

Film Composite ◽

Thin Film Composite

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Covalent graphite modification by low-temperature photocatalytic oxidation using titanium dioxide thin film prepared by atomic layer deposition

Catalysis Science & Technology ◽

10.1039/d1cy00941a ◽

2021 ◽

Author(s):

Niels R. Ostyn ◽

Sreeprasanth Pulinthanathu Sree ◽

Jin Li ◽

Ji-Yu Feng ◽

Maarten BJ Roeffaers ◽

...

Keyword(s):

Thin Film ◽

Titanium Dioxide ◽

Surface Modification ◽

Low Temperature ◽

Atomic Layer Deposition ◽

Photocatalytic Oxidation ◽

Functional Materials ◽

Atomic Layer ◽

Oxidative Modification ◽

Layer Deposition

Oxidative modification of graphene-based materials is an attractive route to functional materials. The use of strong oxidants to achieve surface modification of the carbon often leads to poor uniformity and...

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Polydopamine-Based Surface Modification of Chlorella Microspheres for Multiple Environmental Applications

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19148 ◽

2021 ◽

Vol 21 (5) ◽

pp. 3065-3071

Author(s):

Sihao Pan ◽

Guanhua Huang ◽

Hui Ding ◽

Ke Wang ◽

Hong Wang

Keyword(s):

Water Pollution ◽

Heavy Metal ◽

Surface Modification ◽

Large Scale ◽

Low Cost ◽

Functional Materials ◽

Scale Production ◽

Oil Removal ◽

Directional Motion ◽

Enhanced Adsorption

Towards addressing water pollution issues, the development of multifunctional chlorella with applications ranging from sensing pollutants to heavy metal and oil removal is described. The use of chlorella cells, which are widely abundant natural structures, leads to simple and low-cost mass production of effective functional materials. Bioinspired surface modification approaches mediated by polydopamine can endow chlorella with enhanced adsorption capacity for heavy metals, as well as superhydrophobic, fluorescence and magnetic properties according to the desired application. The resulting chlorella exhibits excellent heavy metal and oil removal ability, while magnetic propulsion and guidance allow directional motion over long distances for implementation in situ removal. Moreover, it is further demonstrated that chlorella can be used as a biosensor to detect metal ions by taking advantage of the fluorescence properties of carbon dots. Such use of chlorella provides a new way for the large-scale production of functional materials to tackle water pollution.

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