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https://www.readbyqxmd.com/read/28096391/network-based-integration-of-systems-genetics-data-reveals-pathways-associated-with-lignocellulosic-biomass-accumulation-and-processing
#1
Eshchar Mizrachi, Lieven Verbeke, Nanette Christie, Ana C Fierro, Shawn D Mansfield, Mark F Davis, Erica Gjersing, Gerald A Tuskan, Marc Van Montagu, Yves Van de Peer, Kathleen Marchal, Alexander A Myburg
As a consequence of their remarkable adaptability, fast growth, and superior wood properties, eucalypt tree plantations have emerged as key renewable feedstocks (over 20 million ha globally) for the production of pulp, paper, bioenergy, and other lignocellulosic products. However, most biomass properties such as growth, wood density, and wood chemistry are complex traits that are hard to improve in long-lived perennials. Systems genetics, a process of harnessing multiple levels of component trait information (e...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28094920/antifouling-thin-film-composite-membranes-by-controlled-architecture-of-zwitterionic-polymer-brush-layer
#2
Caihong Liu, Jongho Lee, Jun Ma, Menachem Elimelech
In this study, we demonstrate a highly antifouling thin-film-composite (TFC) membrane by grafting a zwitterionic polymer brush via atom-transfer radical-polymerization (ATRP), a controlled, environmentally benign chemical process. Initiator molecules for polymerization were immobilized on the membrane surface by bio-inspired catechol chemistry, leading to the grafting of a dense zwitterionic polymer brush layer. Surface characterization revealed that the modified membrane exhibits reduced surface roughness, enhanced hydrophilicity, and lower surface charge...
January 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28093670/natural-colorants-historical-processing-and-sustainable-prospects
#3
REVIEW
Mohd Yusuf, Mohd Shabbir, Faqeer Mohammad
With the public's mature demand in recent times pressurized the textile industry for use of natural colorants, without any harmful effects on environment and aquatic ecosystem, and with more developed functionalities simultaneously. Advanced developments for the natural bio-resources and their sustainable use for multifunctional clothing are gaining pace now. Present review highlights historical overview of natural colorants, classification and predominantly processing of colorants from sources, application on textiles surfaces with the functionalities provided by them...
January 16, 2017: Natural Products and Bioprospecting
https://www.readbyqxmd.com/read/28088137/forces-on-nuclei-moving-on-autoionizing-molecular-potential-energy-surfaces
#4
Nimrod Moiseyev
Autoionization of molecular systems occurs in diatomic molecules and in small biochemical systems. Quantum chemistry packages enable calculation of complex potential energy surfaces (CPESs). The imaginary part of the CPES is associated with the autoionization decay rate, which is a function of the molecular structure. Molecular dynamics simulations, within the framework of the Born-Oppenheimer approximation, require the definition of a force field. The ability to calculate the forces on the nuclei in bio-systems when autoionization takes place seems to rely on an understanding of radiative damages in RNA and DNA arising from the release of slow moving electrons which have long de Broglie wavelengths...
January 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28051175/continuous-fabrication-of-nanostructure-arrays-for-flexible-surface-enhanced-raman-scattering-substrate
#5
Chengpeng Zhang, Peiyun Yi, Linfa Peng, Xinmin Lai, Jie Chen, Meizhen Huang, Jun Ni
Surface-enhanced Raman spectroscopy (SERS) has been a powerful tool for applications including single molecule detection, analytical chemistry, electrochemistry, medical diagnostics and bio-sensing. Especially, flexible SERS substrates are highly desirable for daily-life applications, such as real-time and in situ Raman detection of chemical and biological targets, which can be used onto irregular surfaces. However, it is still a major challenge to fabricate the flexible SERS substrate on large-area substrates using a facile and cost-effective technique...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28047744/we-a-201-01-memorial-introduction
#6
C Marshall
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047091/we-a-201-02-modern-statistical-modeling
#7
A Niemierko
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046561/we-a-201-00-anne-and-donald-herbert-distinguished-lectureship-on-modern-statistical-modeling
#8
Joseph Deasy
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042817/think-yellow-and-keep-green-role-of-sulfanes-from-garlic-in-agriculture
#9
REVIEW
Awais Anwar, Emma Gould, Ryan Tinson, Murree Groom, Chris J Hamilton
Reactive sulfur species from garlic have long been renowned for their health benefits and antimicrobial properties. In agriculture the subject matter is now gathering momentum in the search for new bio-pesticides to addressing emerging environmental concerns and tighter restrictions on the use of many conventional chemical pesticides. Although the precise modes of action of these garlic-derived bioactives is complex, recent research has provided a number of new insights that deepen our understanding of garlic-derived products, such as garlic extracts and oils...
December 30, 2016: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28029764/green-and-mild-oxidation-an-efficient-strategy-toward-water-dispersible-graphene
#10
Xiaofei You, Siwei Yang, Jipeng Li, Yuan Deng, Lianqi Dai, Xiong Peng, Haoguang Huang, Jing Sun, Gang Wang, Peng He, Guqiao Ding, Xiaoming Xie
Scalable fabrication of water-dispersible graphene (W-Gr) is highly desirable yet technically challenging for most practical applications of graphene. Herein, a green and mild oxidation strategy to prepare bulk W-Gr (dispersion, slurry, and powder) with high yield was proposed by fully exploiting structure defects of thermally reduced graphene oxide (TRGO) and oxidizing radicals generated from hydrogen peroxide (H2O2). Owing to the increased carboxyl group from the mild oxidation process, the obtained W-Gr can be redispersed in low-boiling solvents with a reasonable concentration...
January 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28028896/design-of-bioinorganic-materials-at-the-interface-of-coordination-and-biosupramolecular-chemistry
#11
REVIEW
Basudev Maity, Takafumi Ueno
Protein assemblies have recently become known as potential molecular scaffolds for applications in materials science and bio-nanotechnology. Efforts to design protein assemblies for construction of protein-based hybrid materials with metal ions, metal complexes, nanomaterials and proteins now represent a growing field with a common aim of providing novel functions and mimicking natural functions. However, the important roles of protein assemblies in coordination and biosupramolecular chemistry have not been systematically investigated and characterized...
December 28, 2016: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/28028885/antibiotic-spider-silk-site-specific-functionalization-of-recombinant-spider-silk-using-click-chemistry
#12
David Harvey, Philip Bardelang, Sara L Goodacre, Alan Cockayne, Neil R Thomas
In a new, versatile approach to fun-ction-alizing recombinant spider silk, L-azidohomoalanine is introduced residue-specifically in the minispidroin protein 4RepCT through expression in an E. coli methionine auxotroph. Both fluorophores and the antibiotic levofloxacin are attached to this bio-orthogonal amino acid using copper-catalyzed click chemistry, either before or after the silk fibers are self-assembled.
December 28, 2016: Advanced Materials
https://www.readbyqxmd.com/read/28027640/hydrogels-for-therapeutic-delivery-current-developments-and-future-directions
#13
Sytze J Buwalda, Tina Vermonden, Wim E Hennink
Hydrogels are attractive materials for the controlled release of therapeutics because of their capacity to embed biologically active agents in their water-swollen network. Recent advances in organic and polymer chemistry, bio-engineering and nanotechnology have resulted in several new developments in the field of hydrogels for therapeutic delivery. In this Perspective, we present our view on the state-of-the-art in the field, thereby focusing on a number of exciting topics, including bioorthogonal crosslinking methods, multi-component hydrogels, stimuli-responsive hydrogels, nanogels and the release of therapeutics from 3D printed hydrogels...
December 27, 2016: Biomacromolecules
https://www.readbyqxmd.com/read/28008938/selective-in-vitro-photothermal-nano-therapy-of-mrsa-infections-mediated-by-igg-conjugated-gold-nanoparticles
#14
Lucian Mocan, Cristian Matea, Flaviu A Tabaran, Ofelia Mosteanu, Teodora Pop, Cosmin Puia, Lucia Agoston-Coldea, Diana Gonciar, Erszebet Kalman, Gabriela Zaharie, Cornel Iancu, Teodora Mocan
There are serious systemic infections associated with methicillin-resistant Staphylococcus aureus (MRSA) and several other types of bacteria leading to the deaths of millions of people globally. This type of mortality is generally caused by the increasing number of antibiotic-resistant organisms, a consequence of evolution via natural selection. After the synthesis of gold nanoparticles (GNPs) by wet chemistry, bio-functionalization with IgG molecules was performed. Following administration of IgG-GNPs to MRSA cultures at various concentrations and various incubation time laser irradiation was performed...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27996175/homogeneous-and-heterogeneous-anion-sensing-by-a-molecular-cobalt-vanadium-oxide
#15
Magdalena Heiland, Andrey Seliverstov, Benjamin Schwarz, Montaha Anjass, Carsten Streb
Spectroscopic anion sensing is a vital non-invasive tool in chemistry and biology. Here, we show that a molecular cobalt vanadium oxide cluster is capable of selectively binding and detecting various mono-anions in solution and when immobilized on a solid support. The cluster anion [Co(X)V4O12]3- (X = mono-anion, e.g. halide, pseudohalide, carboxylate, etc.) is formed spontaneously upon anion addition by self-assembly in solution. The cluster shows distinct spectral changes upon anion binding which can be followed spectroscopically and visually due to a significant change of the solution color...
December 20, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27991697/materials-chemistry-of-nanoultrasonic-biomedicine
#16
Hailin Tang, Yuanyi Zheng, Yu Chen
As a special cross-disciplinary research frontier, nanoultrasonic biomedicine refers to the design and synthesis of nanomaterials to solve some critical issues of ultrasound (US)-based biomedicine. The concept of nanoultrasonic biomedicine can also overcome the drawbacks of traditional microbubbles and promote the generation of novel US-based contrast agents or synergistic agents for US theranostics. Here, we discuss the recent developments of material chemistry in advancing the nanoultrasonic biomedicine for diverse US-based bio-applications...
December 19, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27987676/adhesion-of-mesenchymal-stem-cells-to-biomimetic-polymers-a-review
#17
REVIEW
Behnaz Banimohamad Shotorbani, Effat Alizadeh, Roya Salehi, Abolfazl Barzegar
The mesenchymal stem cells (MSCs) are promising candidates for cell therapy due to the self-renewal, multi-potency, ethically approved state and suitability for autologous transplantation. However, key issue for isolation and manipulation of MSCs is adhesion in ex-vivo culture systems. Biomaterials engineered for mimicking natural extracellular matrix (ECM) conditions which support stem cell adhesion, proliferation and differentiation represent a main area of research in tissue engineering. Some of them successfully enhanced cells adhesion and proliferation because of their biocompatibility, biomimetic texture, and chemistry...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27983646/data-analysis-in-chemistry-and-bio-medical-sciences
#18
EDITORIAL
Roberto Todeschini, Alejandro Pazos, Sonia Arrasate, Humberto González-Díaz
n/a.
December 14, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27977906/new-insights-into-the-effects-of-biomaterial-chemistry-and-topography-on-the-morphology-of-kidney-epithelial-cells
#19
Frits Hulshof, Carolien Schophuizen, Milos Mihajlovic, Clemens van Blitterswijk, Rosalinde Masereeuw, Jan de Boer, Dimitrios Stamatialis
Increasing incidence of renal pathology in the western world calls for innovative research for the development of cell-based therapies such as a Bio-artificial kidney (BAK) device. To fulfill the multitude of kidney functions, the core component of the BAK is a "living membrane" consisting of a tight kidney cell monolayer with preserved functional organic ion transporters cultured on a polymeric membrane surface. This membrane, on one side, is in contact with blood and therefore there should have excellent blood compatibility whereas on the other side should facilitate functional monolayer formation...
December 15, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27975378/natural-history-bio-inspiration-and-natural-product-synthesis-chemistries-in-a-museum
#20
B Nay
No abstract text is available yet for this article.
December 2016: Planta Medica
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