نتایج جستجو برای: rod shaped

تعداد نتایج: 92090  

Journal: :Journal of colloid and interface science 2011
Chengjun Zhou Qinglin Wu Yiying Yue Quanguo Zhang

Rod-shaped cellulose nanocrystals (CNCs) were manufactured and used to reinforce polyacrylamide (PAM) hydrogels through in situ free-radical polymerization. The gelation process of the nanocomposite hydrogels was monitored on a rheometer using oscillatory shear. The chemical structure, morphology, swelling property, and compression strength of the formed gels were investigated. A possible mecha...

2015
Fangwei Si Bo Li William Margolin Sean X. Sun

A combination of physical and chemical processes is involved in determining the bacterial cell shape. In standard medium, Escherichia coli cells are rod-shaped, and maintain a constant diameter during exponential growth. Here, we demonstrate that by applying compressive forces to growing E. coli, cells no longer retain their rod-like shapes but grow and divide with a flat pancake-like geometry....

Journal: :Chemical communications 2015
Preeti Madhukar Chaudhary Sivakoti Sangabathuni Raghavendra Vasudeva Murthy Ajay Paul Hirekodathakallu V Thulasiram Raghavendra Kikkeri

Achieving selective and sensitive carbohydrate-protein interactions (CPIs) using nanotechnology is an intriguing area of research. Here we demonstrate that the different shapes of gold nanoparticles (AuNPs) functionalized with monosaccharides tune the bacterial aggregations. The mechanism of aggregation revealed that the large number of surface interactions of rod shaped mannose-AuNPs with E. c...

2012
Ling Huang Jie Zhang Lin Cheng Guo-Yu Yang

Poly(polyoxometalate)s: Assembled by {Ni6PW9} Units: From Ring-shaped Ni24-Tetramer to Rod-shaped Ni40-Octamer Ling Huang, Jie Zhang, Lin Cheng, and Guo-Yu Yang* State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. E-mail: [email protected] School of Chemistry, Bejing Institute of Technol...

1999
ZHAO-QING ZENG WEN-YING ZHUANG

Thelonectria beijingensis sp. nov. is characterized by a distinct perithecial wall of textura epidermoidea mixed with textura intricata, purple to brown colonies, curved cylindrical macroconidia with rounded ends, ellipsoid to rod-shaped microconidia, and lacking chlamydospores. Thelonectria yunnanica sp. nov. is distinguished by a three layered perithecial wall with a palisade of short hyphae ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
S H Hong R Verduzco J T Gleeson S Sprunt A Jákli

We report small angle x-ray scattering (SAXS) studies of isotropic, nematic, and smectic mesophases formed by binary mixtures of bent-core (BC) and rod-shaped (RS) molecules. While optical studies indicate that the components are fully miscible, SAXS reveals fascinating structures that are consistent with segregation on a nanoscopic scale. We find that tilted smectic clusters, which have been p...

Journal: :Biochemical and biophysical research communications 2011
Matthew T Swulius Songye Chen H Jane Ding Zhuo Li Ariane Briegel Martin Pilhofer Elitza I Tocheva Suzanne R Lybarger Tanya L Johnson Maria Sandkvist Grant J Jensen

How rod-shaped bacteria form and maintain their shape is an important question in bacterial cell biology. Results from fluorescent light microscopy have led many to believe that the actin homolog MreB and a number of other proteins form long helical filaments along the inner membrane of the cell. Here we show using electron cryotomography of six different rod-shaped bacterial species, at macrom...

Journal: :Biophysical journal 2016
Joris M H Goudsmits Antoine M van Oijen Andrew Robinson

Fluorescence microscopy studies have shown that many proteins localize to highly specific subregions within bacterial cells. Analyzing the spatial distribution of low-abundance proteins within cells is highly challenging because information obtained from multiple cells needs to be combined to provide well-defined maps of protein locations. We present (to our knowledge) a novel tool for fast, au...

Journal: :Acta medica Okayama 2003
Ichiro Kamata Yoshinori Terai Takashi Ohmoto

In this study, we investigated the relationship between intimal thickening of the internal carotid artery (ICA) and immunological reaction, and between occlusion of the ICA and development of basal collateral vessels in moyamoya disease. Rod-shaped lactic acid-glycolic acid copolymer (LGA-50) and N-acetylmuramyl-L-alanyl-D-isoglutamine (muramyl dipeptide: MDP), and immuno-embolic material, were...

Journal: :cell journal 0
puria motamed fath fatemeh yazdian rogayyeh jamjah bahman ebrahimi hosseinzadeh maede rahimnezhad razi sahraeian

objective: pmbn, poly [2-methacryloyloxyethyl phosphoryl choline (mpc)-co-n- buthyl methacrylate (bma)-co-p-nitrophenyl- oxycrabonyl poly (ethylene glycol-methacrylate (meonp)], as a biocompatible ter-polymer is a unique polymer with wide range of application from drug delivery systems to scaffolds and biomedical devices. in this research, monomer of p- nitrophenyl- oxycarbonyl poly (ethylene g...

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