Results 231 to 240 of about 14,949 (265)

Formation of fluorescent polydopamine dots from hydroxyl radical-induced degradation of polydopamine nanoparticles

Physical Chemistry Chemical Physics, 2015
Fluorescent polydopamine dots were prepared through hydroxyl radical-mediated degradation of polydopamine nanoparticles.
Jia-Hui, Lin, Cheng-Ju, Yu, Ya-Chun, Yang, Wei-Lung, Tseng   +3 more
openaire   +2 more sources

Chemistry of polydopamine analogues

Polymer International, 2016
AbstractPolydopamine analogues (PDANAs) extend the prospering field of polydopamine (PDA) considerably. They include additional functional groups providing altered properties interesting for various applications. PDANAs can be obtained by post functionalization of PDA, by oxidative polymerization of dopamine derivatives or by copolymerization of ...
Radosław Mrówczyński, Roksana Markiewicz, Jürgen Liebscher   +2 more
openaire   +1 more source

Gradient Coating of Polydopamine via CDR

Langmuir, 2017
Surfaces with gradient properties are of central importance for a number of chemical and biological processes. Here, we report rapid generation of a polydopamine (PDA) gradient on hydrophobic surfaces by a simple, low cost, and general technology, cyclic draining-replenishing (CDR).
Mei-Xia Zhao, Junwei Li, Xiaohu Gao
openaire   +2 more sources

Polydopamine‐Incorporated Nanoformulations for Biomedical Applications

Macromolecular Bioscience, 2020
AbstractPolydopamine (PDA), a pigment in natural melanin, has attracted considerable attention because of its excellent optical properties, extraordinary adhesion, and good biocompatibility, which make it a promising material for application in energy, environmental, and biomedical fields.
Pan Zheng, Binbin Ding, Gao Li
openaire   +2 more sources

Mechanical Enhancement of Bioinspired Polydopamine Nanocoatings

ACS Applied Materials & Interfaces, 2019
Inspired by the catechol and amine-rich adhesive proteins of mussels, polydopamine (pDA) has become one of the most widely employed methods for functionalizing material surfaces, powered in part by the versatility and simplicity of pDA film deposition that takes place spontaneously on objects immersed in an alkaline aqueous solution of dopamine monomer.
Katerina G. Malollari, Peyman Delparastan, Caroline Sobek, Shraddha J. Vachhani, Tanner D. Fink, R. Helen Zha, Phillip B. Messersmith   +6 more
openaire   +2 more sources

UV absorption enhanced polydopamine coating

Materials Horizons
This article illustrates a facile approach to enhance the UV absorption of PDA coatings by incorporating thiol-heterocycle derivatives. These PDA coatings showed great promise for applications in UV protection, antibacterial and dye degradation.
Zhen Yang, Huijie Liu, Junyi Zhao, Chao Wang, Haotian Li, Xianheng Wang, Ye Yang, Haoxing Wu, Zhipeng Gu, Yiwen Li   +9 more
openaire   +2 more sources

Texture-Dependent Adhesion in Polydopamine Nanomembranes

ACS Applied Materials & Interfaces, 2018
The conformal nature of in situ polymerization of adhesive dopamine molecules permits the strong underwater adhesion between polydopamine (PDA) nanomembranes and the target substrates. However, the adhesive interaction between the postdeposit PDA nanomembranes and other macrobodies is strongly influenced by the texture of PDA nanomembranes.
Ik Soo Kwon, Guannan Tang, Po-Ju Chiang, Christopher J. Bettinger   +3 more
openaire   +2 more sources

Material-Selective Polydopamine Coating in Dimethyl Sulfoxide

ACS Applied Materials & Interfaces, 2020
Polydopamine coating is known to be performed in a material-independent manner and has become a popular tool when designing a surface-functionalization strategy of a given material. Studies to improve polydopamine coatings have been reported, aiming to reduce the coating time (by transition metals, oxidants, applied voltages, or microwave irradiation),
Hong K. Park, Ji Hun Park, Haeshin Lee, Seonki Hong   +3 more
openaire   +3 more sources

Compression Isotherms of Polydopamine Films

Colloid Journal, 2020
Polydopamine is formed via dopamine hydrochloride (DAH) polymerization in a slightly alkaline medium (pH 8.5) both in a solution bulk and at a liquid–gas interface. Atmospheric oxygen and oxygen dissolved in the bulk solution serves as an oxidizing agent.
O. Yu. Milyaeva, A. V. Akent’ev, A. G. Bykov, A. V. Zerov, N. A. Isakov, B. A. Noskov   +5 more
openaire   +1 more source

Applications of Polydopamine in Implant Surface Modification

Macromolecular Bioscience, 2023
AbstractThere is great clinical demand for orthopedic and dental implant surface modification methods to prevent osseointegration failure and improve implant biological functions. Notably, dopamine (DA) can be polymerized to form polydopamine (PDA), which is similar to the adhesive proteins secreted by mussels, to form a stable bond between the bone ...
Ting Ma, Chen‐Xi Wang, Xi‐Yuan Ge, Yu Zhang   +3 more
openaire   +2 more sources