Unusually Stable Molecular Capsule Formation of a Tetraphenyleneurea Cavitand

2004 ◽  
Vol 6 (24) ◽  
pp. 4431-4433 ◽  
Author(s):  
Heung-Jin Choi ◽  
Yeon Sil Park ◽  
Chan Sik Cho ◽  
Kwangnak Koh ◽  
Sung-Hong Kim ◽  
...  
Keyword(s):  
Capsule Formation ◽  
Molecular Capsule

A chromogenic molecular capsule attributable to dipolar amide resonance structure

2015 ◽  
Vol 51 (27) ◽  
pp. 6006-6009 ◽  
Author(s):  
Yeon Sil Park ◽  
Juwan Park ◽  
Kyungsoo Paek
Keyword(s):  
Resonance Structure ◽  
Acid Base ◽  
Capsule Formation ◽  
Naked Eye ◽  
Molecular Capsule ◽  
Acid Base Titration ◽  
Amide Resonance ◽  
Self Assembled ◽  
Upper Rim

A new chromogenic, self-assembled molecular capsule G@22is developed by introducing four (N,N-dimethyl-4-aminophenyl) azobenzyl moieties on the upper rim of a resorcin[4]arene-based amidoimino-cavitand. The tuning of conjugation between amido and (N,N-dimethyl-4-aminophenyl)azobenzyl groups by acid–base titration allows naked-eye observation of molecular capsule formation.

Flocculation of MXenes and Their Use as 2D Particle Surfactants for Capsule Formation

Langmuir ◽  
2021 ◽  
Vol 37 (8) ◽  
pp. 2649-2657
Author(s):  
Huaixuan Cao ◽  
Maria Escamilla ◽  
Kailash Dhondiram Arole ◽  
Dustin Holta ◽  
Jodie L. Lutkenhaus ◽  
...  
Keyword(s):  
Capsule Formation

scholarly journals High-strength and fibrous capsule–resistant zwitterionic elastomers

2021 ◽  
Vol 7 (1) ◽  
pp. eabc5442
Author(s):  
Dianyu Dong ◽  
Caroline Tsao ◽  
Hsiang-Chieh Hung ◽  
Fanglian Yao ◽  
Chenjue Tang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
High Strength ◽  
Design Principles ◽  
Fibrous Capsule ◽  
High Mechanical Strength ◽  
Capsule Formation ◽  
Locking Mechanism ◽  
Fibrous Capsule Formation

The high mechanical strength and long-term resistance to the fibrous capsule formation are two major challenges for implantable materials. Unfortunately, these two distinct properties do not come together and instead compromise each other. Here, we report a unique class of materials by integrating two weak zwitterionic hydrogels into an elastomer-like high-strength pure zwitterionic hydrogel via a “swelling” and “locking” mechanism. These zwitterionic-elastomeric-networked (ZEN) hydrogels are further shown to efficaciously resist the fibrous capsule formation upon implantation in mice for up to 1 year. Such materials with both high mechanical properties and long-term fibrous capsule resistance have never been achieved before. This work not only demonstrates a class of durable and fibrous capsule–resistant materials but also provides design principles for zwitterionic elastomeric hydrogels.

BIOSYNTHETIC ASPECTS OF CAPSULE FORMATION IN THE PNEUMOCOCCUS1

1962 ◽  
Vol 18 (1) ◽  
pp. 27-30 ◽  
Author(s):  
GEORGE T. MILLS ◽  
EVELYN E. B. SMITH
Keyword(s):  
Capsule Formation

The extracellular polymeric substance of the green alga Penium margaritaceum and its role in biofilm formation

Biofilms ◽  
2005 ◽  
Vol 2 (2) ◽  
pp. 129-144 ◽  
Author(s):  
D. S. Domozych ◽  
S. Kort ◽  
S. Benton ◽  
T. Yu
Keyword(s):  
New York ◽  
Extracellular Polymeric Substance ◽  
Biofilm Formation ◽  
Glucuronic Acid ◽  
New York State ◽  
Immunofluorescence Analysis ◽  
Capsule Formation ◽  
Polymeric Substance ◽  
Cell Substrate ◽  
Initial Adhesion

The desmid Penium margaritaceum is a common resident of biofilms of shallow Adirondack wetlands in New York State, USA. It was isolated and grown in the laboratory where it readily formed biofilms and produced large amounts of extracellular polymeric substance (EPS). The EPS was separated into two fractions: an EPS gel and soluble EPS. Both fractions were rich in xylose, fucose and glucuronic acid. The EPS gels contained large amounts of 3-linked, 4-linked and 3,4-linked fucose, 3,4-linked glucuronic acid and terminal xylose linkages. The EPS gel consisted of a fibrillar matrix that linked cells and cell substrate together. Immunofluorescence analysis using an anti-EPS antibody revealed that EPS secretion occurs in several different modes, which contributes to initial adhesion, capsule formation and gliding.

Engineering an iridium-containing metal–organic molecular capsule for induced-fit geometrical conversion and dual catalysis

2016 ◽  
Vol 52 (62) ◽  
pp. 9628-9631 ◽  
Author(s):  
Xuezhao Li ◽  
Jinguo Wu ◽  
Liyong Chen ◽  
Xiaoming Zhong ◽  
Cheng He ◽  
...  
Keyword(s):  
Cooperative Binding ◽  
Induced Fit ◽  
Molecular Capsule ◽  
Metal Organic ◽  
Dual Catalysis ◽  
Carbonate Anion

Quantitative dynamic capsule–capsule conversion by cooperative binding one carbonate anion and switchable dual catalysis was achieved within an Ir2Co3-type capsule.

Guest Encapsulation in a Water-Soluble Molecular Capsule Based on Ionic Interactions

2003 ◽  
Vol 125 (33) ◽  
pp. 9946-9947 ◽  
Author(s):  
Francesca Corbellini ◽  
Luigi Di Costanzo ◽  
Mercedes Crego-Calama ◽  
Silvano Geremia ◽  
David N. Reinhoudt
Keyword(s):  
Water Soluble ◽  
Ionic Interactions ◽  
Molecular Capsule
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