pH responsive self-healing hydrogels formed by boronate-catechol complexation.
نویسندگان
چکیده
Here we report the synthesis and characterization of pH-responsive, self-healing hydrogels based on boronate-catechol complexation.
منابع مشابه
pH Responsive and Oxidation Resistant Wet Adhesive based on Reversible Catechol–Boronate Complexation
A smart adhesive capable of binding to a wetted surface was prepared by copolymerizing dopamine methacrylamide (DMA) and 3-acrylamido phenylboronic acid (AAPBA). pH was used to control the oxidation state and the adhesive property of the catechol side chain of DMA and to trigger the catechol-boronate complexation. FTIR spectroscopy confirmed the formation of the complex at pH 9, which was not p...
متن کاملPh Responsive, Adhesive Hydrogels Based on Reversible Catechol - Boronic Acid Complexation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv
متن کاملBioinspired pH and magnetic responsive catechol-functionalized chitosan hydrogels with tunable elastic properties.
We have developed pH- and magnetic-responsive hydrogels that are stabilized by both covalent bonding and catechol/Fe(3+) ligands. The viscoelastic properties of the gels are regulated by the complexation valence and can be used to tune drug release profiles. The stable incorporation of magnetic nanoparticles further expands control over the mechanical response and drug release, in addition to p...
متن کاملResponsive Hydrogels from Associative Block Copolymers: Physical Gelling through Polyion Complexation
The present review article highlights a specific class of responsive polymer-based hydrogels which are formed through association of oppositely charged polyion segments. The underpinning temporary three-dimensional network is constituted of hydrophilic chains (either ionic or neutral) physically crosslinked by ion pair formation arising from intermolecular polyionic complexation of oppositely c...
متن کاملGels and threads: mussel-inspired one-pot route to advanced responsive materials.
An inexpensive one-pot route to self-healing hydrogels with pH-tunable modulus is presented. Hydrogels were formed by reacting tannic acid, trivalent metal ions and polyallylamine. Below pH 8 the hydrogels were supramolecular while above, covalent cross-linking strengthened the hydrogels. From concentrated mixtures, threads were spun, acting as water sensitive mechanical locks.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Chemical communications
دوره 47 26 شماره
صفحات -
تاریخ انتشار 2011