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Comparison of three different acidic solutions in tendon decellularized extracellular matrix bio-ink fabrication for 3D cell printing.

Acta Biomater 2021 Jun 19. Epub 2021 Jun 19.

Department of Sports Medicine, Peking University Third Hospital. Institute of Sports Medicine of Peking University. Beijing Key Laboratory of Sports Injuries. Beijing 100191, People's Republic of China.. Electronic address:

Decellularized extracellular matrix (dECM) hydrogels are being increasingly investigated for use in bio-inks for three-dimensional cell printing given their good cytocompatibility and biomimetic properties. The osmotic pressure and stiffness of bio-ink are important factors affecting the biological functions of printed cells. However, little attention has been given to the osmotic pressure and stiffness of the dECM bio-inks. Read More

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Light-Regulated Natural Fluorescence of the PCC [email protected] Composite as an Encoded Microsphere for the Detection of Multiple Biomarkers.

ACS Sens 2021 Jun 22. Epub 2021 Jun 22.

State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China.

The use of color-encoded microspheres for a bead-based assay has attracted increasing attention for high-throughput multiplexed bioassays. A fluorescent PCC [email protected] composite was prepared as a bead-based assay platform by a self-assembled zeolitic imidazolate framework (ZIF-8) on the surface of inactivated PCC 6803 cells. The composite fluorescence owing to the presence of pigment proteins in PCC 6803 could be gradually bleached with the prolongation of the ultraviolet light irradiation time. Read More

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Effects of different thawing methods on the physicochemical changes, water migration and protein characteristic of frozen pompano (Trachinotus ovatus).

J Food Biochem 2021 Jun 21:e13826. Epub 2021 Jun 21.

College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.

The effects of five thawing methods (ultrasonic thawing [UT], radiofrequency thawing [RFT], water immersion thawing [WIT], microwave thawing [MT], and cold storage thawing [CST]) on physicochemical properties, water migration, and protein characteristic of whole frozen pompano (Trachinotus ovatus) were investigated and compared with fresh samples (FS). The physicochemical changes of thawed pompano were analyzed based on pH, total volatile basic nitrogen (TVB-N), color difference. The protein aggregation, physicochemical properties and conformation of myofibrillar proteins (MPs) were evaluated by Sodium dodecyl sulfate polyacrylamide gel electrophoresis, differential scanning calorimetry, and Raman spectra, respectively. Read More

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Neurocognitive subprocesses of working memory performance.

Cogn Affect Behav Neurosci 2021 Jun 21. Epub 2021 Jun 21.

University of California Los Angeles, Los Angeles, CA, USA.

Working memory (WM) has been defined as the active maintenance and flexible updating of goal-relevant information in a form that has limited capacity and resists interference. Complex measures of WM recruit multiple subprocesses, making it difficult to isolate specific contributions of putatively independent subsystems. The present study was designed to determine whether neurophysiological indicators of proposed subprocesses of WM predict WM performance. Read More

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Novel technologies for emission reduction complement conservation agriculture to achieve negative emissions from row-crop production.

Proc Natl Acad Sci U S A 2021 Jul;118(28)

HHMI, Duke University, Durham, NC 27708.

Plants remove carbon dioxide from the atmosphere through photosynthesis. Because agriculture's productivity is based on this process, a combination of technologies to reduce emissions and enhance soil carbon storage can allow this sector to achieve net negative emissions while maintaining high productivity. Unfortunately, current row-crop agricultural practice generates about 5% of greenhouse gas emissions in the United States and European Union. Read More

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Research and correlation analysis on the dripper contamination of carteolol hydrochloride eye drops.

Ann Palliat Med 2021 Jun 18. Epub 2021 Jun 18.

Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, China; Department of Ophthalmology, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, China.

Background: Multi-dose eye drops are easily contaminated by microorganisms, and reportedly, the highest contamination rate can reach 96.46%. The use of contaminated eye drops can cause serious eye infections. Read More

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Drug repurposing: Iron in the fire for older drugs.

Biomed Pharmacother 2021 Jun 18;141:111638. Epub 2021 Jun 18.

Shri Sachhidanand Shikshan Santh's Taywade College of Pharmacy, Nagpur 441111, India. Electronic address:

Repositioning or "repurposing" of existing therapies for indications of alternative disease is an attractive approach that can generate lower costs and require a shorter approval time than developing a de novo drug. The development of experimental drugs is time-consuming, expensive, and limited to a fairly small number of targets. The incorporation of separate and complementary data should be used, as each type of data set exposes a specific feature of organism knowledge Drug repurposing opportunities are often focused on sporadic findings or on time-consuming pre-clinical drug tests which are often not guided by hypothesis. Read More

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Evaluation of a modified atmosphere packaging system in pallets to extend the shelf-life of the stored tomato at cooling temperature.

Food Chem 2021 Jun 6;364:130309. Epub 2021 Jun 6.

Areas of Nutrition and Food Science and Food Technology, Department of Analytical Chemistry and Food Science, Faculty of Science, University of Santiago de Compostela, 27002 Lugo, Spain. Electronic address:

A modified atmosphere packaging (MAP) system in pallets was developed and its effect on physico-chemical and sensory characteristics and shelf-life of tomato was evaluated. Tomatoes were stored at 6 °C in cardboard boxes arranged on pallets wrapped in micro-perforated low-density polyethylene (LDPE) bags. Effects of the storage time and packaging were evaluated after 0, 7, 14, and 21 days of storage. Read More

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Immobilization of lipase by dialdehyde cellulose crosslinked magnetic nanoparticles.

Int J Biol Macromol 2021 Jun 18. Epub 2021 Jun 18.

College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China.

Cellulose microcrystalline (MCC) was widely used in pharmaceutical and chemical industries because of its low degree of polymerization and large specific surface area. As its modified form, dialdehyde cellulose (DAC) was used for cross-linking and immobilizing Rhizopus lipase together with magnetic nanoparticles (MNPs) due to its active aldehyde groups. In this study, in order to maintain the original enzyme activity as much as possible and improve the stability of lipase, the Rhizopus lipase was successfully immobilized on the magnetic dialdehyde cellulose nanoparticles (MDC). Read More

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Survival of Thermophilic Fungi in Various Preservation Methods: A Comparative Study.

Authors:
Derya Berikten

Cryobiology 2021 Jun 18. Epub 2021 Jun 18.

Kutahya Health Sciences University, Training and Research Center, 43100, Kutahya, Turkey. Electronic address:

Thermophilic fungi have several biotechnological and industrial applications such as thermostable enzyme production, biodegradation, and tobacco processing, etc. Thermophilic fungi cannot survive at temperatures below 20 C. Owing to their inability to grow at low temperatures, they are not stable, so stocking is very difficult. Read More

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A chiral lanthanide tag for stable and rigid attachment to single cysteine residues in proteins for NMR, EPR and time-resolved luminescence studies.

Chemistry 2021 Jun 21. Epub 2021 Jun 21.

Loughborough University, Chemistry, Epinal Way, LE11 3TU, Loughborough, UNITED KINGDOM.

A lanthanide-binding tag site-specifically attached to a protein presents a tool to probe the protein by multiple spectroscopic techniques, including nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR) and time-resolved luminescence spectroscopy experiments. Here we present a new stable chiral Ln(III) tag, referred to as C12, for spontaneous and quantitative reaction with a cysteine residue generating a stable thioether bond. The synthetic protocol of the tag is relatively straightforward and the tag is stable for storage and shipping. Read More

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Plasmonic enhancement of molecular hydrogen dissociation on metallic magnesium nanoclusters.

Nanoscale 2021 Jun 21. Epub 2021 Jun 21.

Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK.

Light-driven plasmonic enhancement of chemical reactions on metal catalysts is a promising strategy to achieve highly selective and efficient chemical transformations. The study of plasmonic catalyst materials has traditionally focused on late transition metals such as Au, Ag, and Cu. In recent years, there has been increasing interest in the plasmonic properties of a set of earth-abundant elements such as Mg, which exhibit interesting hydrogenation chemistry with potential applications in hydrogen storage. Read More

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Protein extraction from catfish byproducts and physicochemical properties of the protein isolates.

J Food Sci 2021 Jun 20. Epub 2021 Jun 20.

Coastal Research and Extension Center, Mississippi State University, Pascagoula, Mississippi.

In order to optimize protein recovery from catfish byproducts by alkaline extraction, the effects of different factors, including particle size, mince-to-water ratio, pH, and extraction time were investigated. It was found that a protein recovery of about 30% could be achieved. Increases in pH (pH 10. Read More

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How to Apply FMT More Effectively, Conveniently and Flexible - A Comparison of FMT Methods.

Front Cell Infect Microbiol 2021 4;11:657320. Epub 2021 Jun 4.

1stDepartment of Internal Medicine - Department of Infectology, University of Pécs Clinical Centre, Pécs, Hungary.

Purpose: Metronidazol and vancomycin were long the two best options against (formerly ) infections (CDI). Now, the cost of new drugs such as fidaxomicin directs us towards alternative treatment options, such as faecal microbiota transplant (FMT). Its effectiveness is similar to fidaxomicin. Read More

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Eco-friendly control of licorice aqueous extract to increase quality and resistance to postharvest decay in apple and tangerine fruits.

J Environ Health Sci Eng 2021 Jun 26;19(1):1107-1116. Epub 2021 May 26.

Food Safety & Hygiene Division, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Background: Postharvest diseases in fruits and vegetables are one of the major problems in storing them as a fresh agri-product. This study aimed to investigate the antifungal activity of licorice () aqueous extract against the and the in apple and tangerine fruits as well as their postharvest decay during storage time.

Methods: The minimum inhibitory concentration (MIC) of the molds, and the decay inhibition percentage (%DI) with the for apple and for tangerine after treatment with licorice aqueous extract were measured. Read More

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Crops for Carbon Farming.

Front Plant Sci 2021 4;12:636709. Epub 2021 Jun 4.

Department of Plant Sciences, University of California, Davis, Davis, CA, United States.

Agricultural cropping systems and pasture comprise one third of the world's arable land and have the potential to draw down a considerable amount of atmospheric CO for storage as soil organic carbon (SOC) and improving the soil carbon budget. An improved soil carbon budget serves the dual purpose of promoting soil health, which supports crop productivity, and constituting a pool from which carbon can be converted to recalcitrant forms for long-term storage as a mitigation measure for global warming. In this perspective, we propose the design of crop ideotypes with the dual functionality of being highly productive for the purposes of food, feed, and fuel, while at the same time being able to facilitate higher contribution to soil carbon and improve the below ground ecology. Read More

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Mesenchymal Stem Cell-Derived Extracellular Vesicles: A Potential Therapeutic Strategy for Acute Kidney Injury.

Front Immunol 2021 3;12:684496. Epub 2021 Jun 3.

Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.

Acute kidney injury (AKI) is a common and potential life-threatening disease in patients admitted to hospital, affecting 10%-15% of all hospitalizations and around 50% of patients in the intensive care unit. Severe, recurrent, and uncontrolled AKI may progress to chronic kidney disease or end-stage renal disease. AKI thus requires more efficient, specific therapies, rather than just supportive therapy. Read More

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Disposition of unclaimed embryos: an Ethics Committee opinion.

Authors:

Fertil Steril 2021 Jul;116(1):48-53

American Society for Reproductive Medicine, Birmingham, Alabama.

Programs should create and enforce written policies addressing the designation, retention, and disposal of unclaimed embryos. In the absence of program-specific policies, it is ethically permissible for a program or facility to consider embryos to have been unclaimed if a reasonable period of time has passed since contact with an individual or couple; efforts as outlined in the consent form have been made to contact the individual or couple; and no written instructions from the individual or couple with dispositional control exist concerning disposition. In such cases, programs or facilities may dispose of unclaimed embryos by removing them from storage and thawing without transfer. Read More

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Partial Atomic Tin Nanocomplex Pillared Few-Layered TiCT MXenes for Superior Lithium-Ion Storage.

Nanomicro Lett 2020 Mar 25;12(1):78. Epub 2020 Mar 25.

School of Materials Science and Engineering, Zhejiang University, 310027, Hangzhou, People's Republic of China.

MXenes have attracted great interest in various fields, and pillared MXenes open a new path with larger interlayer spacing. However, the further study of pillared MXenes is blocked at multilayered state due to serious restacking phenomenon of few-layered MXene nanosheets. In this work, for the first time, we designed a facile NH method to fundamentally solve the restacking issues of MXene nanosheets and succeeded in achieving pillared few-layered MXene. Read More

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Spintronics in Two-Dimensional Materials.

Nanomicro Lett 2020 Apr 18;12(1):93. Epub 2020 Apr 18.

School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.

Spintronics, exploiting the spin degree of electrons as the information vector, is an attractive field for implementing the beyond Complemetary metal-oxide-semiconductor (CMOS) devices. Recently, two-dimensional (2D) materials have been drawing tremendous attention in spintronics owing to their distinctive spin-dependent properties, such as the ultra-long spin relaxation time of graphene and the spin-valley locking of transition metal dichalcogenides. Moreover, the related heterostructures provide an unprecedented probability of combining the different characteristics via proximity effect, which could remedy the limitation of individual 2D materials. Read More

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TiN Paper for Ultrafast-Charging Supercapacitors.

Nanomicro Lett 2019 Dec 10;12(1). Epub 2019 Dec 10.

Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA, 95064, USA.

Ultrafast-charging energy storage devices are attractive for powering personal electronics and electric vehicles. Most ultrafast-charging devices are made of carbonaceous materials such as chemically converted graphene and carbon nanotubes. Yet, their relatively low electrical conductivity may restrict their performance at ultrahigh charging rate. Read More

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December 2019

High-Power and Ultralong-Life Aqueous Zinc-Ion Hybrid Capacitors Based on Pseudocapacitive Charge Storage.

Nanomicro Lett 2019 Oct 31;11(1):94. Epub 2019 Oct 31.

Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia.

Rechargeable aqueous zinc-ion hybrid capacitors and zinc-ion batteries are promising safe energy storage systems. In this study, amorphous RuO·HO for the first time was employed to achieve fast and ultralong-life Zn storage based on a pseudocapacitive storage mechanism. In the RuO·HO||Zn zinc-ion hybrid capacitors with Zn(CFSO) aqueous electrolyte, the RuO·HO cathode can reversibly store Zn in a voltage window of 0. Read More

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October 2019

All Binder-Free Electrodes for High-Performance Wearable Aqueous Rechargeable Sodium-Ion Batteries.

Nanomicro Lett 2019 Nov 20;11(1):101. Epub 2019 Nov 20.

Division of Advanced Nanomaterials, Key Laboratory of Nanodevices and Applications, Joint Key Laboratory of Functional Nanomaterials and Devices, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, People's Republic of China.

Extensive efforts have recently been devoted to the construction of aqueous rechargeable sodium-ion batteries (ARSIBs) for large-scale energy-storage applications due to their desired properties of abundant sodium resources and inherently safer aqueous electrolytes. However, it is still a significant challenge to develop highly flexible ARSIBs ascribing to the lack of flexible electrode materials. In this work, nanocube-like KNiFe(CN) (KNHCF) and rugby ball-like NaTi(PO) (NTP) are grown on carbon nanotube fibers via simple and mild methods as the flexible binder-free cathode ([email protected]) and anode ([email protected]), respectively. Read More

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November 2019

Nanogenerator-Based Self-Charging Energy Storage Devices.

Nanomicro Lett 2019 Mar 9;11(1):19. Epub 2019 Mar 9.

CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, People's Republic of China.

One significant challenge for electronic devices is that the energy storage devices are unable to provide sufficient energy for continuous and long-time operation, leading to frequent recharging or inconvenient battery replacement. To satisfy the needs of next-generation electronic devices for sustainable working, conspicuous progress has been achieved regarding the development for nanogenerator-based self-charging energy storage devices. Herein, the development of the self-charging energy storage devices is summarized. Read More

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An efficient and accurate method for modeling nonlinear fractional viscoelastic biomaterials.

Comput Methods Appl Mech Eng 2020 Apr 15;362. Epub 2020 Apr 15.

Department of Biomedical Engineering, University of Michigan, Ann Arbor, USA.

Computational biomechanics plays an important role in biomedical engineering: using modeling to understand pathophysiology, treatment and device design. While experimental evidence indicates that the mechanical response of most tissues is viscoelastic, current biomechanical models in the computational community often assume hyperelastic material models. Fractional viscoelastic constitutive models have been successfully used in literature to capture viscoelastic material response; however, the translation of these models into computational platforms remains limited. Read More

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Assessing flammable storage cabinets as sources of VOC exposure in laboratories using real-time direct reading wireless detectors.

J Chem Health Saf 2018 Sep;25(5):2-9

NIOSH (National Institute for Occupational Safety and Health), 1090 Tusculum Ave., Cincinnati, OH 45226, United States.

Herein we present the results of measurements using wireless direct-reading photoionization detector-based gas sensors to quantify concentrations of vapors of volatile organic compounds (VOCs) in and around flammable storage cabinets containing common organic solvents, including acetone, dichloromethane, trichloroethylene, and benzene. Such cabinets are commonly employed in laboratories to contain flammable liquids. A sensor array was deployed in a series of flammable storage cabinets in working laboratories. Read More

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September 2018

Flavor of rapeseed oil: An overview of odorants, analytical techniques, and impact of treatment.

Compr Rev Food Sci Food Saf 2021 Jun 20. Epub 2021 Jun 20.

International Joint Research Laboratory for Lipid Nutrition and Safety, State Key Lab of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi, China.

As one of the three major vegetable oils in the world, rapeseed oil is appreciated for its high nutritional value and characteristic flavor. Flavor is an essential attribute, determining rapeseed oil quality and consumer acceptance. The present manuscript provides a systematic literature review of recent advances and knowledge on the flavor of rapeseed oil, which focuses on aroma-active as well as off-flavor compounds, flavor analysis techniques (i. Read More

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Synergistic effects of starch nanoparticles and chitin nanofibers on the stability of oil-in-water Pickering emulsions.

Food Chem 2021 Jun 17;363:130301. Epub 2021 Jun 17.

Department of Food Science and Human Nutrition, Iowa State University, Ames, IA 50011, USA. Electronic address:

Starch nanoparticles (SNPs) and Chitin nanofibers (ChFs) have been recognized to be effective for emulsion stabilization. Hence, the use of multiple solid nanoparticles seems to be a promising approach to improve emulsion stability. This work aims to studyemulsions stabilized by a combination of SNPs and ChFs at different concentrations over storage time and different environmental conditions. Read More

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Cellulose nanocrystals produced using recyclable sulfuric acid as hydrolysis media and their wetting molecular dynamics simulation.

Int J Biol Macromol 2021 Jun 17;184:405-414. Epub 2021 Jun 17.

College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruits and Vegetables Processing, Beijing 100193, China; Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Beijing 100193, China. Electronic address:

Cellulose nanocrystals (CNCs) were successfully produced with good nanoscales and dispersibility, using a recycled sulfuric acid (HSO) hydrolysis process. This method, at the cost of an overall 25% increase in the hydrolysis time, could significantly reduce the dosage of HSO by approximately 40% without affecting the per-batch yield and performance of CNCs. The obtained CNCs with an average diameter of 6. Read More

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