نتایج جستجو برای: synthetic polymers

تعداد نتایج: 208100  

Journal: :Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology 2016
Zhuo Chen Na Li Shaobo Li Madushani Dharmarwardana Anna Schlimme Jeremiah J Gassensmith

The modification of viruses using chemical conjugation techniques has brought the distant worlds of virology right into the center of nanotechnology. Viruses are naturally resilient biomolecules and this makes them exceptional templates for the creation of higher order polymers and as scaffolds for biological imaging and targeted drug delivery. In this review, we highlight progress in utilizing...

Journal: :Angewandte Chemie 2016
Niancao Chen Xuechen Shi Yong Wang

Natural polymers are synthesized and decomposed under physiological conditions. However, it is challenging to develop synthetic polymers whose formation and reversibility can be both controlled under physiological conditions. Here we show that both linear and branched DNA polymers can be synthesized via molecular hybridization in aqueous solutions, on the particle surface, and in the extracellu...

2011
Zhongguo Dai George Court Zhiqing Li Yonghao Ni

The appropriate pitch control is critical in many pulp and paper operations. One of the important approaches for pitch control is to use synthetic polymers. In this paper, we provide evidence from differential scanning calorimetry (DSC) analysis that the pitch deposits formed with polymers, such as polyDADMAC and CPAM, had better thermal stability than those without these polymers. Metal cation...

2018
Poulomi Sengupta Sachin S Surwase Bhagavatula LV Prasad

Synthetic polymers are widely researched for their use in tissue engineering. Control in size, surface area, pore size, and elasticity are the biggest advantages of using a man-made polymer. However, often the polymers are hydrophobic (do not encourage cell attachment); hence, it is hugely challenging to integrate them with the normal tissues. Herein, we have tried to overcome this disadvantage...

2013
Juan Callejas

........................................................................................................................................................ i Introduction ................................................................................................................................................. 1 Polymers ...........................................................................

Journal: :Occupational medicine 2013
P Sharman R Wood-Baker

Interstitial lung disease (ILD) due to inhalation of fume/smoke from heating or burning of synthetic polymers has not been reported previously. A fish farm worker developed ILD after cutting rope (polypropylene and nylon) for about 2 hours per day over an extended period using an electrically heated 'knife'. This process produced fume/smoke that entered the workers breathing zone. No other like...

2013
Anja Baumgaertel C. Remzi Becer Michael Gottschaldt Ulrich S. Schubert

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) is one of themost fundamental analysis techniques for proteins, peptides, and synthetic polymers to date. Along with field desorption (FD), fast atom bombardment (FAB), laser desorption coupled with time-of-flight (LD-TOF), secondary ion mass spectrometry coupled with time-of-flight (SIMS-TOF), and electr...

2014
Yongshun Huang Maureen A. Shaw Eric S. Mullins Terence L. Kirley Neil Ayres

Polyurea-based synthetic glycopolymers containing sulfated glucose, mannose, glucosamine, or lactose as pendant groups have been synthesized by step-growth polymerization of hexamethylene diisocyanate and corresponding secondary diamines. The obtained polymers were characterized by gel permeation chromatography, nuclear magnetic resonance spectroscopy, and Fourier transform infrared spectroscop...

2007
K. Baczynski K. Goldammer P. Gutjahr T. Kühne

(F-) actin or microtubules belong to the class of semiflexible polymers. The biological function of these polymers requires considerable mechanical rigidity. For example, actin filaments are the main structural elements of the cytoskeleton in which actin filaments form a network rigid enough to maintain the shape of the cell and to transmit forces, yet flexible enough to allow for cell motion a...

2015
Thomas Congdon Bethany T. Dean James Kasperczak-Wright Caroline I. Biggs Rebecca Notman Matthew I. Gibson

Nature has evolved many elegant solutions to enable life to flourish at low temperatures by either allowing (tolerance) or preventing (avoidance) ice formation. These processes are typically controlled by ice nucleating proteins or antifreeze proteins, which act to either promote nucleation, prevent nucleation or inhibit ice growth depending on the specific need, respectively. These proteins ca...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید