Mixed matrix hollow fiber membranes（MMHFMs）filled with metal-organic frameworks（MOFs）have great potential for energy-efficient gas separation processes,but the major hurdle is polymer/MOFs interfacial defects and ...Mixed matrix hollow fiber membranes（MMHFMs）filled with metal-organic frameworks（MOFs）have great potential for energy-efficient gas separation processes,but the major hurdle is polymer/MOFs interfacial defects and membrane plasticization.Herein,lab-synthesized MIL-53 was post-functionalized by aminosilane grafting and subsequently incorporated into Ultem-1000 polymer matrix to fabricate high performance MMHFMs.SEM,DLS,XRD and TGA were performed to characterize silane-modified MIL-53（S-MIL-53）and prepared MMHFMs.Moreover,the effect of MOFs loading was systematically investigated first;then gas separation performance of MMHFMs for pure and mixed gas was evaluated under different pressures.MMHFMs containing post-functionalized S-MIL-53 achieved remarkable gas permeation properties which was better than model predictions.Compared to pure HFMs,CO2permeance of MMHFM loaded with 15%S-MIL-53 increased by 157%accompanying with 40%increase for CO2/N2selectivity,which outperformed the MMHFM filled with naked MIL-53.The pure and mixed gas permeation measurements with elevated feed pressure indicated that incorporation of S-MIL-53 also increased the resistance against CO2plasticization.This work reveals that post-modified MOFs embedded in MMHFMs facilitate the improvement of gas separation performance and suppression of membrane plasticization.展开更多
In a clinical situation, repair of distal peripheral nerve defects can present a major challenge to neurosurgenns. Construction of tissue-engineered nerves is a novel solution for repairing peripheral nerve defects. T...In a clinical situation, repair of distal peripheral nerve defects can present a major challenge to neurosurgenns. Construction of tissue-engineered nerves is a novel solution for repairing peripheral nerve defects. The sciatic nerve is the largest peripheral nerve in the body and is known to have a relatively constant anatomical position, sufficient diameter to be easily exposed and operated upon with good repeatability, satisfactory local blood circulation, and is difficult to infect. Owing to these advantages, rat models of sciatic nerve defects are commonly used to study nerve regeneration and repair.展开更多
This review article entitled ＂Physiological approaches to understanding molecular actions on dorsolateral prefrontal cortical neurons underlying higher cognitive processing＂ examines the relationship between neurotr...This review article entitled ＂Physiological approaches to understanding molecular actions on dorsolateral prefrontal cortical neurons underlying higher cognitive processing＂ examines the relationship between neurotransmitters and prefrontal cognitive function. The authors of this article are leading the field in such research.展开更多
Following spinal cord injury, nerve repair is difficult due to limited regenerative potential of the central nervous system and inability of oli- godendrocytes to guide axonal growth. Several factors pose a challenge ...Following spinal cord injury, nerve repair is difficult due to limited regenerative potential of the central nervous system and inability of oli- godendrocytes to guide axonal growth. Several factors pose a challenge for neural regeneration following spinal cord injury. First, glial scars and cavities, which form after spinal cord injury, hinder axonal growth and result in degenerative necrosis of the nerve fibers. Second.展开更多
It is with great pleasure that I am serving asa Guest Editor for a special issue of the ChinaCommunications on Communications and InformationSecurity for a second time.The goal of this issue is a continuation of theSp...It is with great pleasure that I am serving asa Guest Editor for a special issue of the ChinaCommunications on Communications and InformationSecurity for a second time.The goal of this issue is a continuation of theSpecial Issue by the same Editor which waspublished by CIC in February 2007.We展开更多
Central nervous system injury often leads to incorrect links formed between dendrites and axons in neurons in the regeneration process resulting in histological injury and related dysfunction. The surrounding environm...Central nervous system injury often leads to incorrect links formed between dendrites and axons in neurons in the regeneration process resulting in histological injury and related dysfunction. The surrounding environment of neurons also inhibits neuronal regeneration by not providing enough support.展开更多
The CHINESE JOURNAL OF METAL SCIENCE AND TECHNOLOGY was startedin 1985 and was the only metallurgical periodical in English at that time in China.It is pub-lished under the auspices of The Chinese Society for Metals a...The CHINESE JOURNAL OF METAL SCIENCE AND TECHNOLOGY was startedin 1985 and was the only metallurgical periodical in English at that time in China.It is pub-lished under the auspices of The Chinese Society for Metals and managed by the Institute ofMetal Research,The Chinese Academy of Sciences(CAS).The editor-in-chief is ProfessorChangxu SHI,member of CAS and director of the Division of Technological Science,CAS.展开更多
Neural stem cells transplantation plays an important role in repair and cell replacement therapy for nervous system degenerative diseases. However, the self-repair effects are minimal because of a limited absolute num...Neural stem cells transplantation plays an important role in repair and cell replacement therapy for nervous system degenerative diseases. However, the self-repair effects are minimal because of a limited absolute number, as well as the local microenvironment, post-transplantation. A combined treatment utilizing stem cell transplantation and gone therapy can exert a dual effect involving stem cells and neurotrophic factors. The adenovirus carrier is展开更多
Retinal ganglion cell apoptosis is considered to be the main cause of loss of vision in glaucoma patients. Microglia cells are phagocytic cells present in the retina. In the retina of glaucoma rat models, microglia ce...Retinal ganglion cell apoptosis is considered to be the main cause of loss of vision in glaucoma patients. Microglia cells are phagocytic cells present in the retina. In the retina of glaucoma rat models, microglia cells become activated, which suggests a role for microglia in the pathogenesis of optic nerve injury in glaucoma patients. The retinal ganglion cell is the only cell that can produce action potential in the retina,展开更多
Acupuncture at certain acupoints （specific sites for needle insertion） can induce the activation of specific regions of the brain. This activated brain region influences the target organ or tissue in order to treat ...Acupuncture at certain acupoints （specific sites for needle insertion） can induce the activation of specific regions of the brain. This activated brain region influences the target organ or tissue in order to treat the disease. Acupoint specificity is the basis of acupuncture therapy.展开更多
Elect roencephalographic signals can act as an indicator of abnormal discharge during epileptic seizures, providing important evidence for diagnosing epilepsy. Abnormal electroencephalographic activity was detected du...Elect roencephalographic signals can act as an indicator of abnormal discharge during epileptic seizures, providing important evidence for diagnosing epilepsy. Abnormal electroencephalographic activity was detected during seizures, and high-amplitude epileptic discharge waveforms were observed during intermission in approximately 50% of patients.展开更多
An experimental autolmmune encephalomyelitis model can be used to mimic pathological changes of multiple sclerosis from different angles. During the acute phase of experimental autolmmune encephalomyelitis, CD4＋ T-ce...An experimental autolmmune encephalomyelitis model can be used to mimic pathological changes of multiple sclerosis from different angles. During the acute phase of experimental autolmmune encephalomyelitis, CD4＋ T-cells in the central nervous system infiltrate, proliferate, release large amounts of pro-inflammatory cytokines, and activate the inflammatory cascade, which ultimately leads to展开更多
Brain aging is the main manifestation of nervous system senescence, and is clinically represented by reduced learning and memory capacities and slowed reactions. Several studies have shown that Chinese medicines can e...Brain aging is the main manifestation of nervous system senescence, and is clinically represented by reduced learning and memory capacities and slowed reactions. Several studies have shown that Chinese medicines can effectively slow these processes. For example, polysaccharides from Schisandra chinensis have anti-aging effects, while Buyang Huanwu decoction can effectively improve cerebral blood flow and hemorheology,展开更多
Adult adipose stromal cells are accessible, numerous, show multipotent differentiation potential and low immunogenicity, and are not subjected to ethical issues. Additionally, they can be induced to differentiate into...Adult adipose stromal cells are accessible, numerous, show multipotent differentiation potential and low immunogenicity, and are not subjected to ethical issues. Additionally, they can be induced to differentiate into neuron-like cells and astrocytes in vitro through addition of β-mercaptoethanol and 0,5% anhydrous ethanol.展开更多
Many studies revealed that the Earth medium＇s lateral heterogeneity can cause considerable effects on the co- and post-seismic deformation field. In this study, the threedimensional finite element numerical method ar...Many studies revealed that the Earth medium＇s lateral heterogeneity can cause considerable effects on the co- and post-seismic deformation field. In this study, the threedimensional finite element numerical method are adopted to quantify the effects of lateral heterogeneity caused by material parameters and fault dip angle on the co- and postseismic deformation in the near- and far-field. Our results show that： 1） the medium＇s lateral heterogeneity does affect the co-seismic deformation, with the effects increasing with the medium＇s lateral heterogeneity caused by material parameters; 2） the Lame parameters play a more dominant role than density in the effects caused by lateral heterogeneity; 3） when a fault＇s dip angle is smaller than 90, the effects of the medium＇s lateral heterogeneity on the hanging wall are greater than on the footwall; 4） the impact of lateral heterogeneity caused by the viscosity coefficient on the post-seismic deformation can affect a large area, including the near- and far-field.展开更多
Acupuncture at acupoints can improve the functions of distal organs. Neuropathological studies have shown that electroacupuncture can significantly reduce the infarct volume, and improve the proportions of injured cor...Acupuncture at acupoints can improve the functions of distal organs. Neuropathological studies have shown that electroacupuncture can significantly reduce the infarct volume, and improve the proportions of injured corpus striatum cells and residual cortical cells. Acupuncture-like sense stimulation can activate various conduction pathways that induce changes in nervous system activities.展开更多
Previous in vivo experiments have shown that human umbilical cord blood mesenchymal stem cells can promote the proliferation and differentiation of damaged celts, and help to repair damaged sites, Recent studies have ...Previous in vivo experiments have shown that human umbilical cord blood mesenchymal stem cells can promote the proliferation and differentiation of damaged celts, and help to repair damaged sites, Recent studies have reported that umbilical cord blood-derived mesenchymal stem cells can differentiate into neurons and glial cells. Recent studies have reported that the repair mechanisms underlying cord blood stern cells involve the replacement of damaged cells and mediation of the local micro-environment.展开更多
基金the financial support from the National Natural Science Foundation of China(No.21436009)
文摘Mixed matrix hollow fiber membranes（MMHFMs）filled with metal-organic frameworks（MOFs）have great potential for energy-efficient gas separation processes,but the major hurdle is polymer/MOFs interfacial defects and membrane plasticization.Herein,lab-synthesized MIL-53 was post-functionalized by aminosilane grafting and subsequently incorporated into Ultem-1000 polymer matrix to fabricate high performance MMHFMs.SEM,DLS,XRD and TGA were performed to characterize silane-modified MIL-53（S-MIL-53）and prepared MMHFMs.Moreover,the effect of MOFs loading was systematically investigated first;then gas separation performance of MMHFMs for pure and mixed gas was evaluated under different pressures.MMHFMs containing post-functionalized S-MIL-53 achieved remarkable gas permeation properties which was better than model predictions.Compared to pure HFMs,CO2permeance of MMHFM loaded with 15%S-MIL-53 increased by 157%accompanying with 40%increase for CO2/N2selectivity,which outperformed the MMHFM filled with naked MIL-53.The pure and mixed gas permeation measurements with elevated feed pressure indicated that incorporation of S-MIL-53 also increased the resistance against CO2plasticization.This work reveals that post-modified MOFs embedded in MMHFMs facilitate the improvement of gas separation performance and suppression of membrane plasticization.
文摘In a clinical situation, repair of distal peripheral nerve defects can present a major challenge to neurosurgenns. Construction of tissue-engineered nerves is a novel solution for repairing peripheral nerve defects. The sciatic nerve is the largest peripheral nerve in the body and is known to have a relatively constant anatomical position, sufficient diameter to be easily exposed and operated upon with good repeatability, satisfactory local blood circulation, and is difficult to infect. Owing to these advantages, rat models of sciatic nerve defects are commonly used to study nerve regeneration and repair.
文摘This review article entitled ＂Physiological approaches to understanding molecular actions on dorsolateral prefrontal cortical neurons underlying higher cognitive processing＂ examines the relationship between neurotransmitters and prefrontal cognitive function. The authors of this article are leading the field in such research.
文摘Following spinal cord injury, nerve repair is difficult due to limited regenerative potential of the central nervous system and inability of oli- godendrocytes to guide axonal growth. Several factors pose a challenge for neural regeneration following spinal cord injury. First, glial scars and cavities, which form after spinal cord injury, hinder axonal growth and result in degenerative necrosis of the nerve fibers. Second.
文摘It is with great pleasure that I am serving asa Guest Editor for a special issue of the ChinaCommunications on Communications and InformationSecurity for a second time.The goal of this issue is a continuation of theSpecial Issue by the same Editor which waspublished by CIC in February 2007.We
文摘Central nervous system injury often leads to incorrect links formed between dendrites and axons in neurons in the regeneration process resulting in histological injury and related dysfunction. The surrounding environment of neurons also inhibits neuronal regeneration by not providing enough support.
文摘The CHINESE JOURNAL OF METAL SCIENCE AND TECHNOLOGY was startedin 1985 and was the only metallurgical periodical in English at that time in China.It is pub-lished under the auspices of The Chinese Society for Metals and managed by the Institute ofMetal Research,The Chinese Academy of Sciences(CAS).The editor-in-chief is ProfessorChangxu SHI,member of CAS and director of the Division of Technological Science,CAS.
文摘Neural stem cells transplantation plays an important role in repair and cell replacement therapy for nervous system degenerative diseases. However, the self-repair effects are minimal because of a limited absolute number, as well as the local microenvironment, post-transplantation. A combined treatment utilizing stem cell transplantation and gone therapy can exert a dual effect involving stem cells and neurotrophic factors. The adenovirus carrier is
文摘Retinal ganglion cell apoptosis is considered to be the main cause of loss of vision in glaucoma patients. Microglia cells are phagocytic cells present in the retina. In the retina of glaucoma rat models, microglia cells become activated, which suggests a role for microglia in the pathogenesis of optic nerve injury in glaucoma patients. The retinal ganglion cell is the only cell that can produce action potential in the retina,
文摘Acupuncture at certain acupoints （specific sites for needle insertion） can induce the activation of specific regions of the brain. This activated brain region influences the target organ or tissue in order to treat the disease. Acupoint specificity is the basis of acupuncture therapy.
文摘Elect roencephalographic signals can act as an indicator of abnormal discharge during epileptic seizures, providing important evidence for diagnosing epilepsy. Abnormal electroencephalographic activity was detected during seizures, and high-amplitude epileptic discharge waveforms were observed during intermission in approximately 50% of patients.
文摘An experimental autolmmune encephalomyelitis model can be used to mimic pathological changes of multiple sclerosis from different angles. During the acute phase of experimental autolmmune encephalomyelitis, CD4＋ T-cells in the central nervous system infiltrate, proliferate, release large amounts of pro-inflammatory cytokines, and activate the inflammatory cascade, which ultimately leads to
文摘Brain aging is the main manifestation of nervous system senescence, and is clinically represented by reduced learning and memory capacities and slowed reactions. Several studies have shown that Chinese medicines can effectively slow these processes. For example, polysaccharides from Schisandra chinensis have anti-aging effects, while Buyang Huanwu decoction can effectively improve cerebral blood flow and hemorheology,
文摘Adult adipose stromal cells are accessible, numerous, show multipotent differentiation potential and low immunogenicity, and are not subjected to ethical issues. Additionally, they can be induced to differentiate into neuron-like cells and astrocytes in vitro through addition of β-mercaptoethanol and 0,5% anhydrous ethanol.
基金co-supported by the National Natural Science Foundation of China (41431069)the State Key Development Program for Basic Research of China (2013CB733304, 2013CB733303)+1 种基金the Doctoral Fund of Ministry of Education of China (20110141130010)China Postdoctoral Science Foundation funded project (2013M542062)
文摘Many studies revealed that the Earth medium＇s lateral heterogeneity can cause considerable effects on the co- and post-seismic deformation field. In this study, the threedimensional finite element numerical method are adopted to quantify the effects of lateral heterogeneity caused by material parameters and fault dip angle on the co- and postseismic deformation in the near- and far-field. Our results show that： 1） the medium＇s lateral heterogeneity does affect the co-seismic deformation, with the effects increasing with the medium＇s lateral heterogeneity caused by material parameters; 2） the Lame parameters play a more dominant role than density in the effects caused by lateral heterogeneity; 3） when a fault＇s dip angle is smaller than 90, the effects of the medium＇s lateral heterogeneity on the hanging wall are greater than on the footwall; 4） the impact of lateral heterogeneity caused by the viscosity coefficient on the post-seismic deformation can affect a large area, including the near- and far-field.
文摘Acupuncture at acupoints can improve the functions of distal organs. Neuropathological studies have shown that electroacupuncture can significantly reduce the infarct volume, and improve the proportions of injured corpus striatum cells and residual cortical cells. Acupuncture-like sense stimulation can activate various conduction pathways that induce changes in nervous system activities.
文摘Previous in vivo experiments have shown that human umbilical cord blood mesenchymal stem cells can promote the proliferation and differentiation of damaged celts, and help to repair damaged sites, Recent studies have reported that umbilical cord blood-derived mesenchymal stem cells can differentiate into neurons and glial cells. Recent studies have reported that the repair mechanisms underlying cord blood stern cells involve the replacement of damaged cells and mediation of the local micro-environment.
