Results 121 to 130 of about 52,301 (321)

New Horizons of Infectology

open access: yesAktualʹnaâ Infektologiâ, 2014
There has been considered the evolution of views on infectious diseases. On the basis of current scientific evidence the opinion about the lead role of prokaryotes (bacteria and viruses) in human life was proved.
I.V. Bogadelnikov   +3 more
doaj   +1 more source

Ecological-evolutionary feedback in evolved lineages of Pseudomonas fluorescens : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Environmental Microbiology at Massey University, Albany, New Zealand [PDF]

open access: yes, 2016
Multicellularity cannot proceed to subsequent stages without the evolution of collectives. Thus, it becomes essential to understand the evolution of cooperation before the evolution of multicellularity.
Chawla, Chhavi
core  

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

Generation of an Induced Pluripotent Stem Cell‐Derived Alveolar Type II In Vitro Model to Study Influenza A Virus Infection and Drug Treatments

open access: yesAdvanced Healthcare Materials, EarlyView.
Patient‐specific induced pluripotent stem cells (iPSCs) can be differentiated into alveolar type II cells (iAT2s), expanded as 3D alveolospheres, and grown at physiologically relevant air–liquid interface (ALI). This study shows for the first time the infectability of iAT2s by the influenza A virus (IAV) and proves their responsiveness to the well ...
Lena Gauthier   +7 more
wiley   +1 more source

Cell-Type Transcriptomes of the Multicellular Green Alga Volvox carteri Yield Insights into the Evolutionary Origins of Germ and Somatic Differentiation Programs

open access: yesG3: Genes, Genomes, Genetics, 2018
Germ–soma differentiation is a hallmark of complex multicellular organisms, yet its origins are not well understood. Volvox carteri is a simple multicellular green alga that has recently evolved a simple germ–soma dichotomy with only two cell-types ...
Gavriel Y. Matt, James G. Umen
doaj   +1 more source

Controlling Intestinal Organoid Polarity using Synthetic Dynamic Hydrogels Decorated with Laminin‐Derived IKVAV Peptides

open access: yesAdvanced Healthcare Materials, EarlyView.
Design rules are presented to control intestinal organoid polarity in fully synthetic hydrogels. The laminin‐derived IKVAV sequence is crucial to obtain correct intestinal organoid polarity. Increasing hydrogel dynamics further supports the growth of correctly polarized intestinal organoids, while a bulk level of stiffness (G’ ≈ 0.7 kPa) is crucial to ...
Laura Rijns   +10 more
wiley   +1 more source

How contraction has shaped evolution

open access: yeseLife, 2019
Two unicellular relatives of animals reveal that coordinated contractions of groups of cells using actomyosin predated animal multicellularity during evolution.
Mukund Thattai
doaj   +1 more source

Multicellular Sprouting during Vasculogenesis [PDF]

open access: yes, 2008
Living organisms, from bacteria to vertebrates, are well known to generate sophisticated multicellular patterns. Numerous recent interdisciplinary studies have focused on the formation and regulation of these structures. Advances in automatized microscopy allow the time-resolved tracking of embryonic development at cellular resolution over an extended ...
Andras, Czirok   +3 more
openaire   +2 more sources

Matrix degradability controls multicellularity of 3D cell migration

open access: yesNature Communications, 2017
A major challenge in tissue engineering is the development of materials that can support angiogenesis, wherein endothelial cells from existing vasculature invade the surrounding matrix to form new vascular structures. To identify material properties that
B. Trappmann   +5 more
semanticscholar   +1 more source

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

open access: yesAdvanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu   +18 more
wiley   +1 more source

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