keyword
MENU ▼
Read by QxMD icon Read
search

biofuel cell

keyword
https://www.readbyqxmd.com/read/28817702/global-gene-expression-analysis-of-the-response-of-physic-nut-jatropha-curcas-l-to-medium-and-long-term-nitrogen-deficiency
#1
Qi Kuang, Sheng Zhang, Pingzhi Wu, Yaping Chen, Meiru Li, Huawu Jiang, Guojiang Wu
Jatropha curcas L. is an important biofuel plant with excellent tolerance of barren environments. However, studies on the regulatory mechanisms that operate in this plant in response to nitrogen (N) shortage are scarce. In this study, genome-wide transcriptional profiles of the roots and leaves of 8-week old physic nut seedlings were analyzed after 2 and 16 days of N starvation. Enrichment results showed that genes associated with N metabolism, processing and regulation of RNA, and transport predominated among those showing alterations in expression...
2017: PloS One
https://www.readbyqxmd.com/read/28808229/bioenergy-application-of-dunaliella-salina-sa-134-grown-at-various-salinity-levels-for-lipid-production
#2
Rajper Aftab Ahmed, Meilin He, Rajper Asma Aftab, Shiyan Zheng, Mostafa Nagi, Ramadan Bakri, Changhai Wang
The biofuels are receiving considerable attention as a substitute for petro diesel. For microalgae, the cell density or biomass and lipid contents are key components for biodiesel production. This study was conducted to develop favorable culture conditions for Dunaliella salina to maximize its biomass and lipid accumulation. The effect of salinity (0.5 to 2.5 M NaCl) on the cell population, biochemical composition, and lipid output of Dunaliella salina was examined under a controlled environment for 21 days...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28805994/monitoring-photosynthetic-activity-in-microalgal-cells-by-raman-spectroscopy-with-deuterium-oxide-as-a-tracking-probe
#3
Yusuke Yonamine, Yuta Suzuki, Takuro Ito, Yoshiko Miura, Keisuke Goda, Yasuyuki Ozeki, Yu Hoshino
Microalgae offer great potential for biofuel production, but high photosynthetic activity is demanded for practical realization of microalgal biofuels. To this end, it is essential to evaluate the photosynthetic activity of single microalgal cells in a heterogeneous population. In this study, we present a method for monitoring photosynthetic activity of microalgae (in particular Euglena gracilis, a microalgal species of unicellular, photosynthetic, flagellate protists as our model organism) at single-cell resolution by Raman spectroscopy with deuterium from deuterium oxide (D2O) as a tracking probe...
August 14, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28795753/single-wearable-sensing-energy-device-based-on-photoelectric-biofuel-cells-for-simultaneous-analysis-of-perspiration-and-illuminance
#4
You Yu, Junfeng Zhai, Yong Xia, Shaojun Dong
Wearable electronics are essential for the construction of epidermal energy supply and portable healthcare devices. Herein, a self-powered wearable electronic device based on a photoelectric biofuel cell has been introduced for the first time to simultaneously detect the perspiration lactate and monitor the ambient illuminance depending on independent parameters. The functions of harvesting energy, detection of body function and monitoring of ambient have been merged into a single wireless sensor. This novel design may provide a wide range of smart and exciting wearable electronics...
August 10, 2017: Nanoscale
https://www.readbyqxmd.com/read/28791618/boosting-isoprene-production-via-heterologous-expression-of-the-kudzu-isoprene-synthase-gene-kisps-into-bacillus-spp-cell-factory
#5
Lamis Gomaa, Michael E Loscar, Haggag S Zein, Nahed Abdel-Ghaffar, Abdelhadi A Abdelhadi, Ali S Abdelaal, Naglaa A Abdallah
Isoprene represents a key building block for the production of valuable materials such as latex, synthetic rubber or pharmaceutical precursors and serves as basis for advanced biofuel production. To enhance the production of the volatile natural hydrocarbon isoprene, released by plants, animals and bacteria, the Kudzu isoprene synthase (kIspS) gene has been heterologously expressed in Bacillus subtilis DSM 402 and Bacillus licheniformis DSM 13 using the pHT01 vector. As control, the heterologous expression of KIspS in E...
August 8, 2017: AMB Express
https://www.readbyqxmd.com/read/28774676/microalgal-hydrogen-production-a-review
#6
REVIEW
Wanthanee Khetkorn, Rajesh P Rastogi, Aran Incharoensakdi, Peter Lindblad, Datta Madamwar, Ashok Pandey, Christian Larroche
Bio-hydrogen from microalgae including cyanobacteria has attracted commercial awareness due to its potential as an alternative, reliable and renewable energy source. Photosynthetic hydrogen production from microalgae can be interesting and promising options for clean energy. Advances in hydrogen-fuel-cell technology may attest an eco-friendly way of biofuel production, since, the use of H2 to generate electricity releases only water as a by-product. Progress in genetic/metabolic engineering may significantly enhance the photobiological hydrogen production from microalgae...
July 17, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28772201/effective-immobilization-of-alcohol-dehydrogenase-on-carbon-nanoscaffolds-for-ethanol-biofuel-cell
#7
Yogeswaran Umasankar, Bal-Ram Adhikari, Aicheng Chen
An efficient approach for immobilizing alcohol dehydrogenase (ADH) while enhancing its electron transfer ability has been developed using poly(2-(trimethylamino)ethyl methacrylate) (MADQUAT) cationic polymer and carbon nanoscaffolds. The carbon nanoscaffolds were comprised of single-walled carbon nanotubes (SWCNTs) wrapped with reduced graphene oxide (rGO). The ADH entrapped within the MADQUAT that was present on the carbon nanoscaffolds exhibited a high electron exchange capability with the electrode through its cofactor β-nicotinamide adenine dinucleotide hydrate and β-nicotinamide adenine dinucleotide reduced disodium salt hydrate (NAD(+)/NADH) redox reaction...
July 26, 2017: Bioelectrochemistry
https://www.readbyqxmd.com/read/28762505/harnessing-transcription-for-bioproduction-in-cyanobacteria
#8
Karin Stensjö, Konstantinos Vavitsas, Taina Tyystjärvi
Sustainable production of biofuels and other valuable compounds is one of our future challenges. One tempting possibility is to use photosynthetic cyanobacteria as production factories. Currently, tools for genetic engineering of cyanobacteria are yet not good enough to exploit the full potential of cyanobacteria. A wide variety of expression systems will be required to adjust both the expression of heterologous enzyme(s) and metabolic routes to the best possible balance, allowing the optimal production of a particular substance...
August 1, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28762006/oleaginous-microalgae-from-dairy-farm-wastewater-for-biodiesel-production-isolation-characterization-and-mass-cultivation
#9
Zheng Sun, Xiao-Peng Fang, Xiao-Yang Li, Zhi-Gang Zhou
Producing biodiesel from microalgae grown in wastewater is environment-friendly and cost-effective. The present study investigated the algae found in wastewater of a local dairy farm for their potential as biodiesel feedstocks. Thirteen native algal strains were isolated. On the basis of morphology and 16S/18S rRNA gene sequences, one strain was identified to be a member of cyanobacteria, while other 12 strains belong to green algae. After screening, two Scenedesmus strains out of the 13 microalgae isolates demonstrated superiority in growth rate, lipid productivity, and sedimentation properties, and therefore were selected for further scale-up outdoor cultivation...
July 31, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28755502/an-efficient-transformation-method-for-the-bioplastic-producing-knallgas-bacterium-ralstonia-eutropha-h16
#10
Kang Lan Tee, James Grinham, Arona Martin Othusitse, Miriam Gonzalez-Villanueva, Abayomi Oluwanbe Johnson, Tuck Seng Wong
Ralstonia eutropha H16 (also known as Cupriavidus necator H16) is a Gram-negative lithoautotrophic β-proteobacterium with increasing biotechnological applications, including carbon capture and utilization, biopolymer synthesis and biofuel production. Engineering of this organism is supported by the availability of its genome sequence and suitable plasmid systems. However, the lack of a simple and robust transformation method remains a challenge as it limits both the pace and ease of engineering this organism...
July 29, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28752265/the-augmented-lipid-productivity-in-an-emerging-oleaginous-model-alga-coccomyxa-subellipsoidea-by-nitrogen-manipulation-strategy
#11
Chao Wang, Zhenyao Wang, Fei Luo, Yuqin Li
The lipid productivity controlled by both of biomass and lipid content was really crucial for economic-feasibility of microalgae-based biofuels production. This study attempted at augmenting lipid productivity in an emerging oleaginous model alga Coccomyxa subellipsoidea by different nitrogen manipulation including one-stage continuous N-sufficiency (OCNS), N-deprivation (OCND), N-limitation (OCNL), and also two-stage batch N-starvation (TBNS). Amongst four tested nitrogen manipulation strategies, OCNS performed remarkable promoting effect on cell metabolic growth and the maximum biomass was achieved by 7...
August 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28742363/improved-performance-of-glucose-bioanodes-using-composites-of-7-6-single-walled-carbon-nanotubes-and-a-ferrocene-lpei-redox-polymer
#12
Jie Chen, Rujuta Munje, Nicholas P Godman, Shalini Prasad, Daniel T Glatzhofer, David W Schmidtke
The effect of incorporating different types of carbon nanotubes into composite films of a redox polymer (FcMe2-C3-LPEI) and glucose oxidase (GOX) was investigated. The composite films were constructed by first forming a high-surface area network film of either single-walled carbon nanotubes (SWNTs) or multiwalled carbon nanotubes (MWNTs) on a glassy carbon electrode (GCE) by solution casting of a suspension of Triton-X-100 dispersed SWNTs. Next a glucose responsive redox hydrogel was formed on top of the nanotube-modified electrode by cross-linking FcMe2-C3-LPEI with glucose oxidase via ethylene glycol diglycidyl ether (EGDGE)...
July 25, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28741207/evaluation-of-colour-temperatures-in-the-cultivation-of-dunaliella-salina-and-nannochloropsis-oculata-in-the-production-of-lipids-and-carbohydrates
#13
Salim Gabriel Pavón-Suriano, Luis Alfredo Ortega-Clemente, Sergio Curiel-Ramírez, María Isabel Jiménez-García, Ignacio Alejandro Pérez-Legaspi, Paula Natalia Robledo-Narváez
The production of biofuels from microalgae is a promising and sustainable alternative. Its production is determined by the content of lipids and carbohydrates, which is different for each microalgae species and is affected by environmental factors, being lighting one of the principal determining their biochemical composition. The colour temperature (electromagnetic radiation and light spectrum) is a determining factor for the production of lipids and carbohydrates in microalgae. The aim of this assay was to evaluate the effect of three colour temperatures (6500, 10,000 and 20,000 °K) on the biomass (cel mL(-1)), biomass production and productivity (g L(-1) and g L(-1) day(-1)), lipid and carbohydrate content (%), lipid and carbohydrate production and productivity (mg L(-1) and mg L(-1) day(-1)), composition and content of fatty acids (%) in two microalgae species: Dunaliella salina and Nannochloropsis oculata...
July 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28733420/sg2-type-r2r3-myb-transcription-factor-myb15-controls-defense-induced-lignification-and-basal-immunity-in-arabidopsis
#14
William R Chezem, Altamash Memon, Fu-Shuang Li, Jing-Ke Weng, Nicole Kho Clay
Lignification of cell wall appositions is a conserved basal defense mechanism in the plant innate immune response. However, the genetic pathway controlling defense-induced lignification remains unknown. Here, we demonstrate the Arabidopsis thaliana SG2-type R2R3-MYB transcription factor MYB15 as a regulator of defense-induced lignification and basal immunity. Loss of MYB15 reduces the content but not the composition of defense-induced lignin, whereas constitutive expression of MYB15 increases lignin content independently of immune activation...
July 21, 2017: Plant Cell
https://www.readbyqxmd.com/read/28725264/identification-of-developmental-stage-and-anatomical-fraction-contributions-to-cell-wall-recalcitrance-in-switchgrass
#15
Jacob D Crowe, Nicholas Feringa, Sivakumar Pattathil, Brian Merritt, Cliff Foster, Dayna Dines, Rebecca G Ong, David B Hodge
BACKGROUND: Heterogeneity within herbaceous biomass can present important challenges for processing feedstocks to cellulosic biofuels. Alterations to cell wall composition and organization during plant growth represent major contributions to heterogeneity within a single species or cultivar. To address this challenge, the focus of this study was to characterize the relationship between composition and properties of the plant cell wall and cell wall response to deconstruction by NaOH pretreatment and enzymatic hydrolysis for anatomical fractions (stem internodes, leaf sheaths, and leaf blades) within switchgrass at various tissue maturities as assessed by differing internode...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28725263/modeling-and-simulation-of-the-redox-regulation-of-the-metabolism-in-escherichia-coli-at-different-oxygen-concentrations
#16
Yu Matsuoka, Hiroyuki Kurata
BACKGROUND: Microbial production of biofuels and biochemicals from renewable feedstocks has received considerable recent attention from environmental protection and energy production perspectives. Many biofuels and biochemicals are produced by fermentation under oxygen-limited conditions following initiation of aerobic cultivation to enhance the cell growth rate. Thus, it is of significant interest to investigate the effect of dissolved oxygen concentration on redox regulation in Escherichia coli, a particularly popular cellular factory due to its high growth rate and well-characterized physiology...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28725262/comparison-of-four-glycosyl-residue-composition-methods-for-effectiveness-in-detecting-sugars-from-cell-walls-of-dicot-and-grass-tissues
#17
Ajaya K Biswal, Li Tan, Melani A Atmodjo, Jaclyn DeMartini, Ivana Gelineo-Albersheim, Kimberly Hunt, Ian M Black, Sushree S Mohanty, David Ryno, Charles E Wyman, Debra Mohnen
BACKGROUND: The effective use of plant biomass for biofuel and bioproduct production requires a comprehensive glycosyl residue composition analysis to understand the different cell wall polysaccharides present in the different biomass sources. Here we compared four methods side-by-side for their ability to measure the neutral and acidic sugar composition of cell walls from herbaceous, grass, and woody model plants and bioenergy feedstocks. RESULTS: Arabidopsis, Populus, rice, and switchgrass leaf cell walls, as well as cell walls from Populus wood, rice stems, and switchgrass tillers, were analyzed by (1) gas chromatography-mass spectrometry (GC-MS) of alditol acetates combined with a total uronic acid assay; (2) carbodiimide reduction of uronic acids followed by GC-MS of alditol acetates; (3) GC-MS of trimethylsilyl (TMS) derivatives; and (4) high-pressure, anion-exchange chromatography (HPAEC)...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28719999/comparison-of-anticancer-activity-of-biocompatible-zno-nanoparticles-prepared-by-solution-combustion-synthesis-using-aqueous-leaf-extracts-of-abutilon-indicum-melia-azedarach-and-indigofera-tinctoria-as-biofuels
#18
G K Prashanth, P A Prashanth, B M Nagabhushana, S Ananda, G M Krishnaiah, H G Nagendra, H M Sathyananda, C Rajendra Singh, S Yogisha, S Anand, Y Tejabhiram
Recently, there has been an upsurge in the use of naturally available fuels for solution combustion synthesis (SCS) of nanoparticles. Although many reports suggest that these biofuels pose less harm to the environment, their strategic advantages and reliability for making NPs has not been discussed. In the present work, we try to address this issue using plant extracts as biofuels for the SCS of zinc oxide nanoparticles as a model system. In the present work, combustion synthesis of ZnO NPs using lactose and aqueous leaf extracts of Abutilon indicum, Melia azedarach, Indigofera tinctoria as biofuels has been carried out...
July 18, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28711029/an-oxygen-independent-and-membrane-less-glucose-biobattery-supercapacitor-hybrid-device
#19
Xinxin Xiao, Peter Ó Conghaile, Dónal Leech, Roland Ludwig, Edmond Magner
Enzymatic biofuel cells can generate electricity directly from the chemical energy of biofuels in physiological fluids, but their power density is significantly limited by the performance of the cathode which is based on oxygen reduction for in vivo applications. An oxygen-independent and membrane-less glucose biobattery was prepared that consists of a dealloyed nanoporous gold (NPG) supported glucose dehydrogenase (GDH) bioanode, immobilised with the assistance of conductive polymer/Os redox polymer composites, and a solid-state NPG/MnO2 cathode...
July 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28710263/enzymatic-mechanism-for-arabinan-degradation-and-transport-in-the-thermophilic-bacterium-caldanaerobius-polysaccharolyticus
#20
Daniel Wefers, Jia Dong, Ahmed M Abdel-Hamid, Hans Müller Paul, Gabriel V Pereira, Yejun Han, Dylan Dodd, Ramiya Baskaran, Beth Mayer, Roderick I Mackie, Isaac Cann
The plant cell wall polysaccharide arabinan is an important supply of arabinose, and unraveling arabinan degrading strategies by microbes is important for understanding its use as a source of energy. Here, we explored the arabinan degrading enzymes in the thermophilic bacterium Caldanaerobius polysaccharolyticus and identified a gene cluster encoding two glycoside hydrolase (GH) family 51 α-L-arabinofuranosidases (CpAbf51A, CpAbf51B), a GH43 endo-arabinanase (CpAbn43A), a GH27 β-L-arabinopyranosidase (CpAbp27A), and two GH127 β-L-arabinofuranosidases (CpAbf127A, CpAbf127B)...
July 14, 2017: Applied and Environmental Microbiology
keyword
keyword
22161
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"