Stability-enhanced polydopamine coatings on solid substrates by iron(III) coordination

Kim, Suyeob; Gim, Taewoo; Kang, Sung Min

doi:10.1016/j.porgcoat.2014.04.011

Cited by 60 publications

(53 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pH-dependent drug release from MSN@PDA could be exploited for drug delivery 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Besides the molecular binding capacities, another valuable feature of polydopamine lies in its chemical structure that incorporates catechols with a great binding potential towards transition metal ions to form varying coordination complexes. 9,43,44,45,46 Under physiological condition (pH 7.4), the strong coordinative affinity of C=O and C-O bonds in anthracycline drugs (i.e. DOX) towards metal ions has been well established previously.…”

Section: Evaluation Of Drug Release Behaviormentioning

confidence: 95%

Polydopamine Coatings in Confined Nanopore Space: Toward Improved Retention and Release of Hydrophilic Cargo

et al. 2015

View full text Add to dashboard Cite

A composite nanocarrier system integrating the porous structure of mesoporous silica nanoparticles (MSNs) and the adhesive property of polydopamine for loading and release of hydrophilic drugs is reported. Amino group functionalization facilitates the oxidant-induced surface polymerization of dopamine in the confined space of mesopores by Schiff base/Michael addition reaction in a mild synthesis. As a consequence, to MSN@PDA particles with an average pore size of 4.0 nm, a particle diameter of ~ 70 nm, as well as a thin layer of polydopamine coating on the surfaces of MSNs. The MSN@PDA nanocarriers can effectively adsorb hydrophilic drugs with high loading capacities (380 µg/mg for doxorubicin hydrochloride (DOX)and 320 µg/mg for calcein), facilitated by the π-π stacking interactions between the abundant aromatic rings of PDA and the aromatic backbones of drugs. Interestingly, sustained and pHdependent drug release was observed for these drug loaded MSN@PDA particles, owing to the adhesive property of polydopamine like "molecular glue". Moreover, a catechol-metal-drug coordination system can be easily constructed on the basis of the coordination bonding between catechols in polydopamine and transition metal ions (Fe 3+ , Zn 2+ ), as well as that between metal ions and anthracycline drugs (i.e. DOX), resulting in an acid-triggered drug release.

show abstract

Section: Evaluation Of Drug Release Behaviormentioning

confidence: 95%

Polydopamine Coatings in Confined Nanopore Space: Toward Improved Retention and Release of Hydrophilic Cargo

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Furthermore,t he former coatings have as maller ratio of C À H( 36.7 %) than the latter (46.3 %). [20] This could also improve the stability of PDAc oatings dramatically. [19] Thet wo reactions result in many covalent parts and then stabilize the PDAcoatings.Itshould be noted that the peaks at 954.27 eV and 932.27 eV are attributed to Cu 2p 1/2 and Cu 2p 3/2 ( Figure S8).…”

Section: Angewandte Chemiementioning

confidence: 99%

CuSO₄/H₂O₂‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability

et al. 2016

View full text Add to dashboard Cite

Mussel-inspired polydopamine (PDA) deposition offers a promising route to fabricate multifunctional coatings for various materials. However, PDA deposition is generally a time-consuming process, and PDA coatings are unstable in acidic and alkaline media, as well as in polar organic solvents. We report a strategy to realize the rapid deposition of PDA by using CuSO4/H2O2 as a trigger. Compared to the conventional processes, our strategy shows the fastest deposition rate reported to date, and the PDA coatings exhibit high uniformity and enhanced stability. Furthermore, the PDA-coated porous membranes have excellent hydrophilicity, anti-oxidant properties, and antibacterial performance. This work demonstrates a useful method for the environmentally friendly, cost-effective, and time-saving fabrication of PDA coatings.

show abstract

“…There are residual copper ions (2.41 mol %) in the coatings,which could act as cross-link sites by chelation with the amine and imine groups of PDA. [20] This could also improve the stability of PDAc oatings dramatically. PDAd eposition has been regarded as an efficient and easy way to improve the surface hydrophilicity of various substrates,e specially for porous membranes.…”

Section: Angewandte Chemiementioning

confidence: 99%

CuSO₄/H₂O₂‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability

et al. 2016

View full text Add to dashboard Cite

Mussel-inspired polydopamine (PDA) deposition offers ap romising route to fabricate multifunctional coatings for various materials.H owever,P DA deposition is generally at ime-consuming process,a nd PDAc oatings are unstable in acidic and alkaline media, as well as in polar organic solvents. We report astrategy to realize the rapid deposition of PDAby using CuSO 4 /H 2 O 2 as atrigger.Compared to the conventional processes,o ur strategy shows the fastest deposition rate reported to date,and the PDAcoatings exhibit high uniformity and enhanced stability.F urthermore,t he PDA-coated porous membranes have excellent hydrophilicity,anti-oxidant properties,a nd antibacterial performance.T his work demonstrates auseful method for the environmentally friendly,cost-effective, and time-saving fabrication of PDAc oatings.

show abstract

Stability-enhanced polydopamine coatings on solid substrates by iron(III) coordination

Cited by 60 publications

References 29 publications

Polydopamine Coatings in Confined Nanopore Space: Toward Improved Retention and Release of Hydrophilic Cargo

Polydopamine Coatings in Confined Nanopore Space: Toward Improved Retention and Release of Hydrophilic Cargo

CuSO₄/H₂O₂‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability

CuSO₄/H₂O₂‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability

Contact Info

Product

Resources

About

Stability-enhanced polydopamine coatings on solid substrates by iron(III) coordination

Cited by 60 publications

References 29 publications

Polydopamine Coatings in Confined Nanopore Space: Toward Improved Retention and Release of Hydrophilic Cargo

Polydopamine Coatings in Confined Nanopore Space: Toward Improved Retention and Release of Hydrophilic Cargo

CuSO4/H2O2‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability

CuSO4/H2O2‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability

Contact Info

Product

Resources

About

CuSO₄/H₂O₂‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability

CuSO₄/H₂O₂‐Induced Rapid Deposition of Polydopamine Coatings with High Uniformity and Enhanced Stability