Category

(Hydro)gels

(Hydro)gelsApplicationCharacteristic dimensionCharacterizationCustomer publicationsFood scienceLipidsMaterialSAXSSurfactantsTechnique

Development and characterization of a novel soy lecithin-stearic acid and whey protein concentrate bigel system for potential edible applications

Bollom, Mark A.; Clark, Stephanie; Acevedo, Nuria C.

Bigels are a new technology with great potential in the food industry. Their success with drug delivery suggests they may be able to deliver sensitive compounds in foods, such as probiotics and bioactives. The purpose of this study was to develop and characterize a novel, edible bigel system. The bigel…
(Hydro)gels(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechniqueWAXS

Toughening anti-overswelling semicrystalline polymer hydrogels with ultra-small hydrophobic nanoparticles

Meng, Xiaohui; Wu, Teng; Qiu, Dong

Semicrystalline polymer hydrogels (SC-gels) are intrinsically electrolyte tolerant and over-swelling resistant, emerging as promising candidates for applications in solution environments. However, SC-gels with high mechanical strength are usually brittle. In the present work, by introducing ultra-small hydrophobic nanoparticles, highly-stretchable SC-gels (15 times of its original length) with…
(Hydro)gelsApplicationCharacterizationCustomer publicationsLipidsMaterialProteins & DNA/RNASAXSShapeSizeStructural biologyTechnique

Effects of charge contrast and composition on microgel formation and interactions with bacteria-mimicking liposomes

Borro, Bruno C.; Toussaint, Marie S.; Bucciarelli, Saskia; Malmsten, Martin

Microgels offer opportunities for improved delivery of antimicrobial peptides (AMP). To contribute to a foundation for rational design of such systems, we here study the effects of electrostatics on the generation of peptide-carrying microgels. For this, alginate microgels loaded with polymyxin B and cross-linked by Ca2+, were formed by electrostatic…
(Hydro)gelsApplicationCharacterizationCustomer publicationsMaterialOtherPhase analysisPorous materialSAXSTechnique

Highly Stretchable Photonic Crystal Hydrogels for a Sensitive Mechanochromic Sensor and Direct Ink Writing

Chen, Jiayao; Xu, Lirong; Yang, Meijia; Chen, Xiaochuan; Chen, Xudong; Hong, Wei

Photonic crystals, which are materials with periodic dielectric constants on the submicroscale, have been the focus of research for an extended period. Photonic soft materials have been extensively developed for use as colorimetric indicators and mechanochromic sensors, but their limited mechanical properties and molding characteristics only suitable for films restrict…
(Hydro)gels(Natural) polymersApplicationCharacterizationCustomer publicationsFibersMaterialOrientation analysisOtherSAXSTechnique

Strong, Water-Stable Ionic Cable from Bio-Hydrogel

Kong, Weiqing; Li, Tian; Chen, Chaoji; Chen, Gegu; Brozena, Alexandra H.; Liu, Dapeng; Liu, Yang; Wang, Chengwei; Gan, Wentao; Wang, Sha; He, Shuaiming; Hu, Liangbing

Nanofluids have attracted much attention due to their various applications in energy storage, water desalination, and ionic circuits. However, the practical applications of the existing ionic conductors are limited due to their poor mechanical strength and stability in water. Here, inspired by nature, we develop a mechanically robust and water-stable…
(Hydro)gels(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsSAXSSelf-assembled materialShapeSizeTechnique

Solvent-non-solvent rapid-injection for preparing nanostructured materials from micelles to hydrogels

Lang, Chao; LaNasa, Jacob A.; Utomo, Nyalaliska; Xu, Yifan; Nelson, Melissa J.; Song, Woochul; Hickner, Michael A.; Colby, Ralph H.; Kumar, Manish; Hickey, Robert J.

Due to their distinctive molecular architecture, ABA triblock copolymers will undergo specific self-assembly processes into various nanostructures upon introduction into a B-block selective solvent. Although much of the focus in ABA triblock copolymer self-assembly has been on equilibrium nanostructures, little attention has been paid to the guiding principles of nanostructure…
(Hydro)gels(Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialPolymer researchTechniqueWAXS

Pure PEDOT:PSS hydrogels

Lu, Baoyang; Yuk, Hyunwoo; Lin, Shaoting; Jian, Nannan; Qu, Kai; Xu, Jingkun; Zhao, Xuanhe

Hydrogels of conducting polymers provide an electrical interface with biological tissues for sensing and stimulation, but currently have compromised mechanical and electrical properties. Here, the authors show a simple method to achieve pure PEDOT:PSS hydrogels that exhibit superior mechanical and electrical properties, stability, and tunable…
(Hydro)gels(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchTechniqueWAXS

Controlling the Supramolecular Polymerization of Donor-Acceptor π-Systems through Hydrogen Bond Intervention

Nair, Vishnu Sukumaran; Vedhanarayanan, Balaraman; Ajayaghosh, Ayyappanpillai

Supramolecular polymerization of donor-acceptor type molecules leads to mixed or self-sorted assemblies depending on the donor-acceptor strength and extent of noncovalent interactions between the components. Herein, we discuss how competing hydrogen bonding motifs control the supramolecular polymerization pathway of a two-component molecular π-system of oligo(p-phenylenevinylene) (OPV-B and…
(Hydro)gelsApplicationCharacterizationCustomer publicationsMaterialSAXSShapeSizeStructural biologySurfactantsTechnique

Deoxycholic acid and l-Phenylalanine enrich their hydrogel properties when combined in a zwitterionic derivative

Travaglini, Leana; di Gregorio, Maria Chiara; Severoni, Emilia; D’Annibale, Andrea; Sennato, Simona; Tardani, Franco; Giustini, Mauro; Gubitosi, Marta; Del Giudice, Alessandra; Galantini, Luciano

Hypothesis Sodium Deoxycholate (NaDC) and Phenylalanine (Phe) are important biological hydrogelators. NaDC hydrogels form by lowering the pH or by increasing the ionic strength. Phe gels form from saturated solution by thermal induction and slow kinetics. The resulting gels hold great potential in medicine and biology as drug carriers and…
(Hydro)gelsApplicationCharacterizationCustomer publicationsInorganic materialMaterialNanoparticles & colloidsSAXSSizeTechnique

3D-Printing of Pure Metal–Organic Framework Monoliths

Lim, Gwendolyn J. H.; Wu, Yue; Shah, Bhuvan B.; Koh, J. Justin; Liu, Connie K.; Zhao, Dan; Cheetham, Anthony K.; Wang, John; Ding, Jun

Metal–organic frameworks (MOFs) are usually synthesized in powder form. For many practical applications, MOFs need to be shaped into monoliths that can be easily handled. However, conventional shaping methods, such as pelletization, often result in a decrease in functionality. Recently, MOF-containing monoliths have been made using direct ink writing (DIW;…