Synthesis, core-shell structures and properties of fluorene/polypyrrole composite

Polydopamine (PDA) capsule and core–shell structures with tailored structures and properties are of particular interests due to their multifunctions and potential applications as new colloidal structures in diverse fields. Among the available fabrication methods, PDA film onto colloidal particles followed by selective template removal has attracted extensive attention due to its advantages of precise control over the size, wall thickness and functions of the obtained capsules. The past several years has witnessed a rapid increase of research concerning the new fabrication strategies, functionalization and applications of this kind of capsules and core–shell structures, particularly in many fields such as drug delivery, catalysis, antibacterial, etc. In this review, the very recent progress of the capsule and core–shell structures based on PDA are summarized. There are basically two sections, including the fabrication process of PDA capsules, core–shell structures, and the various applications based on PDA.

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Controlled synthesis, core–shell structures and electrochemical properties of polyaniline/polypyrrole composite nanofibers

Journal of Materials Chemistry A ◽

10.1039/c3ta14460g ◽

2014 ◽

Vol 2 (7) ◽

pp. 2129-2135 ◽

Cited By ~ 37

Author(s):

Banglei Liang ◽

Zongyi Qin ◽

Jianyun Zhao ◽

Yu Zhang ◽

Zhe Zhou ◽

...

Keyword(s):

Electrochemical Properties ◽

Composite Nanofibers ◽

Shell Structures ◽

Core Shell ◽

Controlled Synthesis ◽

Polypyrrole Composite

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Current Status of Magnetite-Based Core@Shell Structures for Diagnosis and Therapy in Oncology Short running title: Biomedical Applications of Magnetite@Shell Structures

Current Pharmaceutical Design ◽

10.2174/1381612821666150917093543 ◽

2015 ◽

Vol 21 (37) ◽

pp. 5417-5433 ◽

Cited By ~ 8

Author(s):

Ângela Andrade ◽

José Fabris ◽

Rosana Domingues ◽

Márcio Pereira

Keyword(s):

Biomedical Applications ◽

Shell Structures ◽

Current Status ◽

Core Shell ◽

Diagnosis And Therapy

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Designing active mats based on cellulose acetate/polycaprolactone core/shell structures with different release kinetics

Carbohydrate Polymers ◽

10.1016/j.carbpol.2021.117849 ◽

2021 ◽

Vol 261 ◽

pp. 117849 ◽

Cited By ~ 1

Author(s):

Adrián Rojas ◽

Eliezer Velásquez ◽

Constanza Piña ◽

María José Galotto ◽

Carol López de Dicastillo

Keyword(s):

Cellulose Acetate ◽

Release Kinetics ◽

Shell Structures ◽

Core Shell

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Microscopic Deformation Behavior and Crack Resistance Mechanism of Core–Shell Structures in Highly‐Toughened PP/PA6/EPDM‐g‐MA Ternary Blends

Macromolecular Materials and Engineering ◽

10.1002/mame.202100174 ◽

2021 ◽

pp. 2100174

Author(s):

Majid Mehrabi‐Mazidi ◽

Mir Karim Razavi‐Aghjeh

Keyword(s):

Crack Resistance ◽

Deformation Behavior ◽

Resistance Mechanism ◽

Shell Structures ◽

Core Shell ◽

Ternary Blends ◽

Microscopic Deformation

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A SERS Study of Charge Transfer Process in Au Nanorod–MBA@Cu2O Assemblies: Effect of Length to Diameter Ratio of Au Nanorods

Nanomaterials ◽

10.3390/nano11040867 ◽

2021 ◽

Vol 11 (4) ◽

pp. 867

Author(s):

Lin Guo ◽

Zhu Mao ◽

Sila Jin ◽

Lin Zhu ◽

Junqi Zhao ◽

...

Keyword(s):

Charge Transfer ◽

Shell Structure ◽

Shell Structures ◽

Core Shell ◽

Absorption Bands ◽

Au Nanorods ◽

The Core ◽

Band Position ◽

Surface Enhanced Raman ◽

Core Shell Structure

Surface-enhanced Raman scattering (SERS) is a powerful tool in charge transfer (CT) process research. By analyzing the relative intensity of the characteristic bands in the bridging molecules, one can obtain detailed information about the CT between two materials. Herein, we synthesized a series of Au nanorods (NRs) with different length-to-diameter ratios (L/Ds) and used these Au NRs to prepare a series of core–shell structures with the same Cu2O thicknesses to form Au NR–4-mercaptobenzoic acid (MBA)@Cu2O core–shell structures. Surface plasmon resonance (SPR) absorption bands were adjusted by tuning the L/Ds of Au NR cores in these assemblies. SERS spectra of the core-shell structure were obtained under 633 and 785 nm laser excitations, and on the basis of the differences in the relative band strengths of these SERS spectra detected with the as-synthesized assemblies, we calculated the CT degree of the core–shell structure. We explored whether the Cu2O conduction band and valence band position and the SPR absorption band position together affect the CT process in the core–shell structure. In this work, we found that the specific surface area of the Au NRs could influence the CT process in Au NR–MBA@Cu2O core–shell structures, which has rarely been discussed before.

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