scholarly journals pH-Responsive Polyketone/5,10,15,20-Tetrakis-(Sulfonatophenyl)Porphyrin Supramolecular Submicron Colloidal Structures

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2017
Author(s):  
Esteban Araya-Hermosilla ◽  
Ignacio Moreno-Villoslada ◽  
Rodrigo Araya-Hermosilla ◽  
Mario E. Flores ◽  
Patrizio Raffa ◽  
...  
Keyword(s):  
Zeta Potential ◽  
Self Assembly ◽  
Color Change ◽  
Water Soluble ◽  
Polymeric Surfactant ◽  
Acidic Ph ◽  
Ph Responsive ◽  
Supramolecular Systems ◽  
Water Soluble Porphyrin ◽  
Negative Zeta Potential

In this work, we prepared color-changing colloids by using the electrostatic self-assembly approach. The supramolecular structures are composed of a pH-responsive polymeric surfactant and the water-soluble porphyrin 5,10,15,20-tetrakis-(sulfonatophenyl)porphyrin (TPPS). The pH-responsive surfactant polymer was achieved by the chemical modification of an alternating aliphatic polyketone (PK) via the Paal–Knorr reaction with N-(2-hydroxyethyl)ethylenediamine (HEDA). The resulting polymer/dye supramolecular systems form colloids at the submicron level displaying negative zeta potential at neutral and basic pH, and, at acidic pH, flocculation is observed. Remarkably, the colloids showed a gradual color change from green to pinky-red due to the protonation/deprotonation process of TPPS from pH 2 to pH 12, revealing different aggregation behavior.

A water-soluble biphen[3]arene: synthesis, host–guest complexation, and application in controllable self-assembly and controlled release

2015 ◽  
Vol 51 (20) ◽  
pp. 4188-4191 ◽  
Author(s):  
Jiong Zhou ◽  
Guocan Yu ◽  
Li Shao ◽  
Bin Hua ◽  
Feihe Huang
Keyword(s):  
Controlled Release ◽  
Self Assembly ◽  
Water Soluble ◽  
Ammonium Salts ◽  
Ph Responsive ◽  
Recognition Motif

The first water-soluble biphen[3]arene was synthesized. Its pH-responsive host–guest complexation with secondary ammonium salts in water was investigated. This novel recognition motif was further used in controllable self-assembly and controlled release.

Synthesis and Electrochemical, Photophysical, and Self-Assembly Studies on Water-Soluble pH-Responsive Alkynylplatinum(II) Terpyridine Complexes

2016 ◽  
Vol 55 (9) ◽  
pp. 4650-4663 ◽  
Author(s):  
Clive Yik-Sham Chung ◽  
Steve Po-Yam Li ◽  
Kenneth Kam-Wing Lo ◽  
Vivian Wing-Wah Yam
Keyword(s):  
Self Assembly ◽  
Water Soluble ◽  
Ph Responsive

Pillar[10]arene-based host–guest complexation promoted self-assembly: from nanoparticles to uniform giant vesicles

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 40418-40421 ◽  
Author(s):  
Jie Yang ◽  
Zhengtao Li ◽  
Li Shao ◽  
Guocan Yu
Keyword(s):  
Self Assembly ◽  
Water Soluble ◽  
Ph Responsive ◽  
Giant Vesicles ◽  
Recognition Motif ◽  
Novel Host

A novel host-guest recognition motif between a water-soluble pillar[10]arene and pyrene derivative was established and further applied in the fabrication of a pH-responsive supra-amphiphile.

A water-soluble metal–organic complex array as a multinuclear heterometallic peptide amphiphile that shows unconventional anion dependency in its self-assembly

2016 ◽  
Vol 52 (8) ◽  
pp. 1579-1581 ◽  
Author(s):  
Pradip K. Sukul ◽  
Purnandhu Bose ◽  
Toshiaki Takei ◽  
Omar M. Yaghi ◽  
Ying He ◽  
...  
Keyword(s):  
Self Assembly ◽  
Aqueous Media ◽  
Water Soluble ◽  
Ph Responsive ◽  
Organic Complex ◽  
Peptide Amphiphile ◽  
Short Peptide ◽  
Self Assembling ◽  
Metal Organic Complex ◽  
Metal Organic

Water-soluble metal–organic complex array 1, bearing Ru(ii), Pt(ii) and Rh(iii) complexes at the side residues of the short peptide, exhibits anion and pH-responsive self-assembling behaviours in aqueous media.

A pH-responsive fluorescent [5]pseudorotaxane formed by self-assembly of cationic water-soluble pillar[5]arenes and a tetraphenylethene derivative

2015 ◽  
Vol 51 (61) ◽  
pp. 12220-12223 ◽  
Author(s):  
Rener Chen ◽  
Huajiang Jiang ◽  
Haining Gu ◽  
Qizhong Zhou ◽  
Jiashou Wu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Water Soluble ◽  
Ph Responsive

The formation of a pH-responsive fluorescent [5]pseudorotaxane by self-assembly of cationic water-soluble pillar[5]arenes and a tetraphenylethene derivative was reported.

scholarly journals pH Responsive Self-Assembly of Cucurbit[7]urils and Polystyrene-Block-Polyvinylpyridine Micelles for Hydrophobic Drug Delivery

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Basem A. Moosa ◽  
Afnan Mashat ◽  
Wengang Li ◽  
Karim Fhayli ◽  
Niveen M. Khashab
Keyword(s):  
Drug Delivery ◽  
Aqueous Solution ◽  
Self Assembly ◽  
Room Temperature ◽  
Water Soluble ◽  
Hydrophobic Drug ◽  
Ph Responsive ◽  
Ph Values ◽  
Neutral Ph ◽  
Release Study

Polystyrene-block-polyvinylpyridine (PS-b-P4VP) polypseudorotaxanes with cucurbit[7]urils (CB[7]) were prepared from water soluble PS-b-P4VPH+polymer and CB[7] in aqueous solution at room temperature. At acidic and neutral pH, the pyridinium block of PS-b-P4VP is protonated (PS-b-P4VPH+) pushing CB[7] to preferably host the P4VP block. At basic pH (pH 8), P4VP is not charged and thus is not able to strongly complex CB[7]. This phenomenon was verified further by monitoring the release of pyrene, a hydrophobic cargo model, from a PS-b-P4VPH+/CB[7] micellar membrane. Release study of UV active pyrene from the membrane at different pH values revealed that the system is only operational under basic conditions and that the host-guest interaction of CB[7] with P4VPH+significantly slows down cargo release.

A cavity extended water-soluble resorcin[4]arene: synthesis, pH-controlled complexation with paraquat, and application in controllable self-assembly

2017 ◽  
Vol 41 (3) ◽  
pp. 916-919 ◽  
Author(s):  
Yujuan Zhou ◽  
Kecheng Jie ◽  
Yong Yao
Keyword(s):  
Molecular Recognition ◽  
Self Assembly ◽  
Water Soluble ◽  
Carboxylate Group ◽  
Ph Responsive ◽  
Recognition Motif ◽  
Ph Controlled

A novel pH-responsive molecular recognition motif was built between an anionic carboxylate group modified resorcin[4]arene and paraquat in water. We then employed it to fabricate a supra-amphiphile for controllable self-assembly.

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