Abstract：
:Polylactic electrospun porous fibres have been widely used in tissue engineering scaffolds. However, the application of linear polylactic is limited due to its poor hydrophilicity, which leads to phase separation and has been seldom used in porous fibre preparation. Instead, branching polylactic acts as a new effective method to prepare porous fibres because it can increase polylactic polar property and make it easy to be formulated in the following application. In the current study, we prepared an ultra-high molecular weight of high branching polylactic with glycerol as the initiator by controlling the ring-opening polymerization time, adding amount of catalyst and glycerol. The structure, molecular weight and thermal properties of copolymers were tested subsequently. The result showed that the surface of the high branching polylactic films is smooth, hydrophilic and porous. This branching polylactic formed electrospun porous fibres and possessed a strong adsorption of silver ion. Our study provided a simple and efficient way to synthesize branching polylactic polymer and prepare electrospun porous fibres, which may provide potential applications in the field of biomaterials for tissue engineering or antibacterial dressing compared with the application of linear polylactic and 3-arm polylactic materials.
journal_name
R Soc Open Scijournal_title
Royal Society open scienceauthors
Shen W,Zhang G,Ge X,Li Y,Fan Gdoi
10.1098/rsos.180134subject
Has Abstractpub_date
2018-09-12 00:00:00pages
180134issue
9issn
2054-5703pii
rsos180134journal_volume
5pub_type
杂志文章abstract：:We model radicalization in a society consisting of two competing religious, ethnic or political groups. Each of the 'sects' is divided into moderate and radical factions, with intra-group transitions occurring either spontaneously or through indoctrination. We also include the possibility of one group violently attack...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.170678
更新日期：2017-08-30 00:00:00
abstract：:A pleiotropic gene governs multiple traits, which might constrain the evolution of complexity due to conflicting selection on these traits. However, if the pleiotropic effect is modular, then this can facilitate synergistic responses to selection on functionally related traits, thereby leveraging the evolution of comp...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.170042
更新日期：2017-04-26 00:00:00
abstract：:Digested sludge, as the main by-product of the sewage sludge anaerobic digestion process, still contains considerable organic compounds. In this protocol, we report a facile method for preparing digested sludge-derived self-doped porous carbon material for high-performance supercapacitor electrodes via a sustainable p...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.172456
更新日期：2018-04-11 00:00:00
abstract：:Adult body size in holometabolus insects is directly proportional to the time spent during the larval period. The larval duration can be divided into two parts: (i) pre-critical duration-time required to attain a critical size/critical weight that would result in successful completion of development and metamorphosis ...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.191910
更新日期：2020-06-10 00:00:00
abstract：:Large-scale high-throughput plant phenotyping (sometimes called phenomics) is becoming increasingly important in plant biology and agriculture and is essential to cutting-edge plant breeding and management approaches needed to meet the food and fuel needs for the next century. Currently, the application of these appro...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.160592
更新日期：2016-10-26 00:00:00
abstract：:Real-world complex networks are composed of non-random quantitative interactions. Identifying communities of nodes that tend to interact more with each other than the network as a whole is a key research focus across multiple disciplines, yet many community detection algorithms only use information about the presence ...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.140536
更新日期：2016-01-20 00:00:00
abstract：:It is recently demonstrated that amorphous Ge anode shows higher reversible Na-ion storage capacity (590 mA h g-1) than crystallized Ge anode (369 mA h g-1). Here, amorphous GeO x anode is prepared by a simple wet-chemistry reduction route at room temperature. The obtained...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.171477
更新日期：2018-01-17 00:00:00
abstract：:The basic reproduction number R 0 of the coronavirus disease 2019 h...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.200786
更新日期：2020-09-23 00:00:00
abstract：:Living kangaroos, wallabies and rat-kangaroos (Macropodoidea) constitute the most ecologically diverse radiation of Australasian marsupials. Indeed, even their hallmark bipedal hopping gait has been variously modified for bounding, walking and climbing. However, the origins of this locomotory adaptability are uncertai...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.181617
更新日期：2019-02-06 00:00:00
abstract：:The great amount of solid particles contained in a weighting agent is a major cause of the problems in both rheology properties and damage control mechanism of an oil-based drilling fluid (OBM). Therefore, a proper type of weighting agent can be a solution for the application of OBM. In this study, three weighting age...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.180358
更新日期：2018-07-25 00:00:00
abstract：:The rigid structure of the mammalian trachea is functional to maintain constant patency and airflow during breathing, but no gas exchange takes place through its walls. The structure of the organ in dolphins shows increased rigidity of the tracheal cartilaginous rings and the presence of vascular lacunae in the submuc...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.171645
更新日期：2018-04-18 00:00:00
abstract：:There is a new associative learning paradox. The power of associative learning for producing flexible behaviour in non-human animals is downplayed or ignored by researchers in animal cognition, whereas artificial intelligence research shows that associative learning models can beat humans in chess. One phenomenon in w...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.180778
更新日期：2018-11-28 00:00:00
abstract：:Helical organic micro- and nanostructures are formed by a charge-transfer complex, cinchonidine-TCNQ. These unusual forms result from the chirality, the steric structure and specific interactions of cinchonidine molecules. These materials are semiconductors (10-4 S cm-1), with the typical absorption spectra in IR and ...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.171499
更新日期：2018-03-14 00:00:00
abstract：:Conservation management agencies are faced with acute trade-offs when dealing with disturbance from human activities. We show how agencies can respond to permanent ecosystem disruption by managing for Pimm resilience within a conservation budget using a model calibrated to a metapopulation of a coral reef fish species...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.140521
更新日期：2015-07-08 00:00:00
abstract：:The transition to agriculture is one of the most significant events in human prehistory; yet, explaining why people initially domesticated plants and animals remains a contentious research problem in archaeology. Two competing hypotheses dominate current debates. The first draws on niche construction theory to emphasi...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.160319
更新日期：2016-08-03 00:00:00
abstract：:Traditional ecological knowledge (TEK), an important component of the modern conservation toolkit, is being eroded in indigenous communities around the world. However, the dynamics of TEK loss in response to ecosystem change and disruption to social-ecological systems, and patterns of variation in vulnerability and re...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.172352
更新日期：2018-06-13 00:00:00
abstract：:Many drum communication systems around the world transmit information by emulating tonal and rhythmic patterns of spoken languages in sequences of drumbeats. Their rhythmic characteristics, in particular, have not been systematically studied so far, although understanding them represents a rare occasion for providing ...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.170354
更新日期：2018-04-25 00:00:00
abstract：:In this paper, we establish the explicit connection between deterministic trait-based population-level models (in the form of partial differential equations) and species-level models (in the form of ordinary differential equations), in the context of eco-evolutionary systems. In particular, by starting from a populati...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.200321
更新日期：2020-08-19 00:00:00
abstract：:Migration is essential for maintaining genetic diversity among populations, and pumas (Puma concolor) provide an excellent model for studying the genetic impacts of migrants on populations isolated by increasing human development. In densely populated southern California, USA, puma populations on the east and west sid...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.170115
更新日期：2017-05-24 00:00:00
abstract：:Quantifying regulatory gene effects on dental morphology and function has implications for the underlying mechanisms that generated dental diversity in mammals. We tested the hypothesis that regulatory gene expression changes lead to differences in molars using a neural crest knockout of bone morphogenetic protein 7 (...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.170761
更新日期：2018-01-03 00:00:00
abstract：:In plants, plant fructokinases (FRKs) are considered to be the main gateway of fructose metabolism as they can phosphorylate fructose to fructose-6-phosphate. Chinese white pears (Pyrus bretschneideri) are one of the popular fruits in the world market; sugar content is an important factor affecting the quality of the ...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.171463
更新日期：2018-07-18 00:00:00
abstract：:Microwave absorption (MA) materials with high heat resistance have a wide range of applications in many fields. In this work, a C,N-codoped MoSi2 ceramic was prepared via a facile solid-phase reaction method and its MA properties was investigated. On the one hand, the results indicate that this ceramic possesses excel...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.200740
更新日期：2020-07-29 00:00:00
abstract：:Anthropogenic activities affect fish populations worldwide. River dams have profound impacts on ecosystems by changing habitats and hindering migration. In an effort to counteract such effects, a range of mitigation measures have been installed at hydroelectric power plants. However, not all individuals in a populatio...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.190989
更新日期：2019-11-13 00:00:00
abstract：:The copper-containing nitrite reductases (CuNIRs) are a class of enzymes that mediate the reduction of nitrite to nitric oxide in biological systems. Metal-ligand complexes that reproduce the salient features of the active site of CuNIRs are therefore of fundamental interest, both for elucidating the possible mode of ...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.170593
更新日期：2017-08-16 00:00:00
abstract：:In this contribution, olefin block copolymers were produced via chain shuttling polymerization (CSP), using a new combination of catalysts and a chain shuttling agent (CSA) diethylzinc (ZnEt2). The binary catalyst system included nonbridged half-titanocene catalyst, Cp*TiCl2(O-2,6-iPr2C6H3) (Cat A) and bis(phenoxy-imi...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.182007
更新日期：2019-04-10 00:00:00
abstract：:Ceratopsids are among the most ubiquitous dinosaur taxa from the Late Cretaceous terrestrial formations of the Western Interior of North America, comprising two subfamilies, Chasmosaurinae and Centrosaurinae. The Two Medicine Formation of northwestern Montana has produced numerous remains of centrosaurine dinosaurs, w...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.200284
更新日期：2020-04-29 00:00:00
abstract：:A series of ordered mesoporous silica such as MCM-41, SBA-3 and SBA-15, in addition to silica micro- (SM) and nano- (SN) mesoporous particles, were prepared. The preparation conditions were found to greatly influence the physical-surface properties including morphological structure, porosity, particle size, aggregate ...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.172021
更新日期：2018-03-14 00:00:00
abstract：:Bears produce the most altricial neonates of any placental mammal. We hypothesized that the transition from colostrum to mature milk in bears reflects a temporal and biochemical adaptation for altricial development and immune protection. Comparison of bear milks with milks of other eutherians yielded distinctive prote...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.150395
更新日期：2015-10-21 00:00:00
abstract：:The emerging carbon quantum dots (CQDs) have been attracting significant attention for their prominent fluorescence, excellent stability and outstanding biocompatibility. Here, we report a facile one-step synthesis of highly fluorescent CQDs by using phthalic acid and triethylenediamine hexahydrate as precursors throu...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.180245
更新日期：2018-07-11 00:00:00
abstract：:Difluoromethanesulfonyl hypervalent iodonium ylides 2 were developed as electrophilic difluoromethylthiolation reagents for a wide range of nucleophiles. Enamines, indoles, β-keto esters, silyl enol ethers and pyrroles were effectively reacted with 2 affording desired difluoromethylthio (SCF2H)-substituted compounds i...
journal_title：Royal Society open science
pub_type： 杂志文章
doi：10.1098/rsos.160102
更新日期：2016-05-25 00:00:00
