Molecular Design of Novel Thermo-responsive Hydrogel Membranes and Their Applications.

Fabrication of Thermo-responsive Membranes and Application Fabrication of Paper Based Thermo-responsive Membranes and Investigation for Their Use in Adsorption of Emerging Water Contaminants

Tunable microlens arrays actuated by various thermo-responsive hydrogel structures

We report on liquid-based tunable-focus microlens arrays made of a flexible polydimethylsiloxane (PDMS) polymer. Each microlens in the array is formed through an immiscible liquid–liquid interfacial meniscus. Here deionized water and silicone oil were used. The liquids were constrained in the PDMS structures fabricated through liquid-phase photopolymerization for molding and soft lithography. T...

Ultrathin, freestanding, stimuli-responsive, porous membranes from polymer hydrogel-brushes.

The fabrication of freestanding, sub-100 nm-thick, pH-responsive hydrogel membranes with controlled nano-morphology, based on modified poly(hydroxyethyl methacrylate) (PHEMA) is presented. Polymer hydrogel-brush films were first synthesized by surface-initiated atom transfer radical polymerization (SI-ATRP) and subsequently detached from silicon substrates by UV-induced photo-cleavage of a spec...

Design and Synthesis of A Novel Bis-Benzimidazolyl Podand As a Responsive Chemosensors for Anions

      A novel podand based anion receptor bearing benzimidazole motifs as recognition sites was designed and synthesized by reaction of 1,7-bis(2'-methylbenzoate)-1,4,7-trioxaheptane and phenylenediamine. The binding properties of anionic guest with this receptor were studied using UV-Vis and fluorescence spectroscopy. These studies revealed that this receptor exhibit selective recognition towar...

Thermo-Responsive Hydrogel Coatings on Polymer Surfaces for Controlled Cell Adhesion and Detachment

Polymere mit thermo-reversiblen Eigenschaften sind von großer Bedeutung für biomedizinische Anwendungen. Bekannte Vertreter sind Poly(N-isopropylacrylamid) (PNiPAAm) und Poly(N,N-diethylacrylamid) (PDEAAm) mit Übergangstemperaturen von 32 bis 33 °C. In der vorliegenden Arbeit wurden Copolymere dieser Materialien mit Poly(ethyleneglycol) (PEG) synthetisiert, um so die Übergangstemperatur in den ...