Track topics on Twitter Track topics that are important to you
Lamellar structure is a prominent state in soft condensed matter. Swelling lamellar layers to highly asymmetric structures by a second component is a facile, cost-effective strategy to impart materials with adaptive size and tunable properties. One key question that remains unsolved is how defects form and affect the asymmetric lamellar order. This study unravels the role of defects by swelling a miktoarm block copolymer with a homopolymer. Ordered lamellae first lose translational order by a significant increase in the number of dislocations and then lose orientational order by the generation of disclinations. The homopolymers are not uniformly distributed in defective lamellae and primarily segregate in the vicinity of disclination cores. The free energy of defects is mainly contributed by molecular splay and significantly alleviated by an increased radius of local curvature. This study provides direct evidence to reveal the role of defects and lamellar order in block copolymer/homopolymer blends and also sheds light on understanding analogous structural transitions in other soft systems, including lyotropic liquid crystals, phospholipid membranes, and polymer nanocomposites.
This article was published in the following journal.
Name: The journal of physical chemistry letters
Ciliary motility depends on both the precise spatial organization of multiple dynein motors within the 96 nm axonemal repeat, and highly coordinated interactions between different dyneins and regulato...
A self-assembled G-quadruplex formed by guanosine and borate as chiral scaffold was used to catalyze the asymmetric Friedel-Crafts reaction in water. Catalysis, depends on self-assembly of guanosine a...
Tumors that overexpress the MYC oncogene are frequently aneuploid, a state associated with highly aggressive cancers and tumor evolution. However, how MYC causes aneuploidy is not well understood. Her...
In bacteria, the assembly factors tightly orchestrate the maturation of ribosomes whose competency for protein synthesis is validated by translation machinery at various stages of translation cycle. H...
To review cytokine- and chemokine-mediated mechanisms of diffuse lamellar keratitis (DLK) after lamellar corneal surgical procedures.
This study evaluates whether whole blood transferred through the new POLFA needle assembly meets supernatant hemoglobin acceptability standards.
Lamellar ichthyosis is a congenital disease of the skin with a generalized scaling. The primary activity of liarozole is considered to be the inhibition of the degradation of a substance c...
- The goals of this study are to develop a lyophilization method for anterior lamellar transplants in Brasil and to make a comparative analysis among patients transplanted with lyophilized...
The purpose of this study is to report outcomes of deep anterior lamellar keratoplasty (DALK) using the big-bubble technique.
The aim of this study is to survey melanocytes in the ability of self-assembly on biomaterials and functional analysis in vitro. Also, this study may provide a better way for treatment of ...
A formulation for presenting an antigen to induce specific immunologic responses. It consists of an assembly of antigens in multimeric form. The assembly is attached to a matrix with a built-in adjuvant, saponin. ISCOMs induce strong serum antibody responses, and are used as highly immunogenic forms of subunit vaccines.
A highly-conserved family of protein serine-threonine kinases that regulate the CELL CYCLE; MITOSIS; and the response to DNA DAMAGE. They are also involved in the assembly and function of microtubule-based structures such as CILIA and CENTRIOLES.
A galectin found in the small and large intestine and the stomach. It occurs as a homodimer with two 36-kDa subunits and is localized to sites of cell adhesion where it may play role in assembly of ADHERENS JUNCTIONS.
The occurrence of highly polymorphic mono- and dinucleotide MICROSATELLITE REPEATS in somatic cells. It is a form of genome instability associated with defects in DNA MISMATCH REPAIR.
A histone chaperone that facilitates nucleosome assembly by mediating the formation of the histone octamer and its transfer to DNA.
A joint is where two or more bones come together, like the knee, hip, elbow, or shoulder. Joints can be damaged by many types of injuries or diseases, including Arthritis - inflammation of a joint causes pain, stiffness, and swelling with ...