1
|
Sui X, Xu B, Kostko O, Yu XY. Investigation of pyruvic acid photolysis at the air-liquid interface as a source of aqueous secondary organic aerosols. Sci Total Environ 2024; 930:172729. [PMID: 38670353 DOI: 10.1016/j.scitotenv.2024.172729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 04/28/2024]
Abstract
Pyruvic acid (PA) is a ubiquitous 2-oxocarboxylic acid in the atmosphere. Its photochemical process at the air-liquid (a-l) interface has been suggested as an important source of aqueous secondary organic aerosols. We investigated the photochemical reaction pathways of PA at the a-l interface using synchrotron-based vacuum ultraviolet single-photon ionization mass spectrometry (VUV SPI-MS) coupled with the System for Analysis at the Liquid Vacuum Interface (SALVI) microreactor. Results from mass spectral analysis and the determination of appearance energies (AEs) indicate that photolysis of PA can generate radicals, then they recombine with carboxylic acids and simple molecular oligomers. Furthermore, the preliminary products could form larger oligomers via radical reaction or esterification in the presence of hydroxyl and carboxyl functional groups. Mass spectral comparison shows that most photochemical reactions would complete within 4 h. The expanded photochemistry-driven reaction flowchart of PA is proposed based on the newly discovered products. Our results reveal that the interfacial PA photochemical reactions have different mechanisms from the bulk liquid due to the interfacial properties, such as molecular density, composition, and ion concentration. Our findings show that in situ mass spectral analysis with bright photon ionization is useful to elucidate the contribution of a-l interfacial reactions leading to aqSOA formation.
Collapse
Affiliation(s)
- Xiao Sui
- College of Geography and Environment, Shandong Normal University, Jinan 250358, China
| | - Bo Xu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Oleg Kostko
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Xiao-Ying Yu
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830-6136, United States.
| |
Collapse
|
2
|
Pattanshetti A, Koli A, Dhabbe R, Yu XY, Motkuri RK, Chavan VD, Kim DK, Sabale S. Polymer Waste Valorization into Advanced Carbon Nanomaterials for Potential Energy and Environment Applications. Macromol Rapid Commun 2024; 45:e2300647. [PMID: 38243849 DOI: 10.1002/marc.202300647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/23/2023] [Indexed: 01/22/2024]
Abstract
The rise in universal population and accompanying demands have directed toward an exponential surge in the generation of polymeric waste. The estimate predicts that world-wide plastic production will rise to ≈590 million metric tons by 2050, whereas 5000 million more tires will be routinely abandoned by 2030. Handling this waste and its detrimental consequences on the Earth's ecosystem and human health presents a significant challenge. Converting the wastes into carbon-based functional materials viz. activated carbon, graphene, and nanotubes is considered the most scientific and adaptable method. Herein, this world provides an overview of the various sources of polymeric wastes, modes of build-up, impact on the environment, and management approaches. Update on advances and novel modifications made in methodologies for converting diverse types of polymeric wastes into carbon nanomaterials over the last 5 years are given. A remarkable focus is made to comprehend the applications of polymeric waste-derived carbon nanomaterials (PWDCNMs) in the CO2 capture, removal of heavy metal ions, supercapacitor-based energy storage and water splitting with an emphasis on the correlation between PWDCNMs' properties and their performances. This review offers insights into emerging developments in the upcycling of polymeric wastes and their applications in environment and energy.
Collapse
Affiliation(s)
- Akshata Pattanshetti
- Department of Chemistry, Jaysingpur College Jaysingpur (Shivaji University Kolhapur), Jaysingpur, 416101, India
| | - Amruta Koli
- Department of Chemistry, Jaysingpur College Jaysingpur (Shivaji University Kolhapur), Jaysingpur, 416101, India
| | - Rohant Dhabbe
- Department of Chemistry, Jaysingpur College Jaysingpur (Shivaji University Kolhapur), Jaysingpur, 416101, India
| | - Xiao-Ying Yu
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Radha Kishan Motkuri
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, 99354, USA
| | - Vijay D Chavan
- Department of Electrical Engineering and Convergence Engineering for Intelligent Drone, Sejong University, Seoul, 05006, South Korea
| | - Deok-Kee Kim
- Department of Electrical Engineering and Convergence Engineering for Intelligent Drone, Sejong University, Seoul, 05006, South Korea
| | - Sandip Sabale
- Department of Chemistry, Jaysingpur College Jaysingpur (Shivaji University Kolhapur), Jaysingpur, 416101, India
| |
Collapse
|
3
|
He L, Wang R, Zhu C, Yu XY, He YC, Zhou L, Zhang Z, Shu MG. [Clinical effects of flaps or myocutaneous flaps transplantation after titanium mesh-retaining debridement in repairing the wounds with exposed titanium mesh after cranioplasty]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:273-280. [PMID: 38548398 DOI: 10.3760/cma.j.cn501225-20231031-00163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Objective: To explore the clinical effects of flaps or myocutaneous flaps transplantation after debridement to repair the wounds with exposed titanium mesh after cranioplasty on the premise of retaining the titanium mesh. Methods: This study was a retrospective observational study. From February 2017 to October 2022, 22 patients with titanium mesh exposure after cranioplasty who met the inclusion criteria were admitted to the Department of Plastic, Aesthetic & Maxillofacial Surgery of the First Affiliated Hospital of Xi'an Jiaotong University, including 15 males and 7 females, aged from 19 to 68 years. After admission, treatments such as bacterial culture of wound exudate sample, anti-infection, and dressing change were carried out. Thorough surgical debridement was performed when the wound improved, and the wound area was 3.0 cm×2.0 cm to 11.0 cm×8.0 cm after debridement. The wound was repaired with local flaps, expanded flaps, or free latissimus dorsi myocutaneous flaps according to the size, location, severity of infection, and surrounding tissue condition of the wounds, and the areas of flaps or myocutaneous flaps were 5.5 cm×4.0 cm to 18.0 cm×15.0 cm. The donor areas of flaps were sutured directly or repaired by split-thickness skin grafts from head. The wound repair method was recorded. The survivals of flaps or myocutaneous flaps after surgery and wound healing in 2 weeks after surgery were recorded. During postoperative follow-up, recurrence of infection or titanium mesh exposure in the implanted area of titanium mesh was observed; the head shapes of patients, scar formation of the operative incision, and baldness were observed. At the last follow-up, the satisfaction of patients with the treatment effect (dividing into three levels: satisfied, basically satisfied, and dissatisfied) was evaluated. The total treatment costs of patients during their hospitalization were calculated. Results: The wounds in 11 cases were repaired with local flaps, the wounds in 5 cases were repaired with expanded flaps, and the wounds in 6 cases were repaired with free latissimus dorsi myocutaneous flaps. All flaps or myocutaneous flaps survived completely after surgery, and all wounds healed well in 2 weeks after surgery. Follow up for 6 to 48 months after operation, only one patient with local flap grafting experienced a recurrence of infection in the titanium mesh implanted area at more than one month after surgery, and the titanium mesh was removed because of ineffective treatment. Except for one patient who had a local depression in the head after removing the titanium mesh, the rest of the patients had a full head shape. Except for myocutaneous flap grafting areas in 6 cases and skin grafting area in 1 case with local flaps grafting had no hair growth, the other patients had no baldness. All the scars in surgical incision were concealed. At the last follow-up, 19 cases were satisfied with the treatment effects, 2 cases were basically satisfied, and 1 case was dissatisfied. The total treatment cost for patients in this group during hospitalization was 11 764-36 452 (22 304±6 955) yuan. Conclusions: For patients with titanium mesh exposure after cranioplasty, on the premise of adequate preoperative preparation and thorough debridement, the wound can be repaired with appropriate flaps or myocutaneous flaps according to the wound condition. The surgery can preserve all or part of the titanium mesh. The postoperative wound healing is good and the recurrence of infection or titanium mesh exposure in the titanium mesh implanted area is reduced, leading to good head shape, reduced surgical frequency, and decreased treatment costs.
Collapse
Affiliation(s)
- L He
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - R Wang
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - C Zhu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - X Y Yu
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y C He
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - L Zhou
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Z Zhang
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - M G Shu
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| |
Collapse
|
4
|
Shen Y, Howard L, Yu XY. Secondary Ion Mass Spectral Imaging of Metals and Alloys. Materials (Basel) 2024; 17:528. [PMID: 38276468 PMCID: PMC10820874 DOI: 10.3390/ma17020528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/18/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024]
Abstract
Secondary Ion Mass Spectrometry (SIMS) is an outstanding technique for Mass Spectral Imaging (MSI) due to its notable advantages, including high sensitivity, selectivity, and high dynamic range. As a result, SIMS has been employed across many domains of science. In this review, we provide an in-depth overview of the fundamental principles underlying SIMS, followed by an account of the recent development of SIMS instruments. The review encompasses various applications of specific SIMS instruments, notably static SIMS with time-of-flight SIMS (ToF-SIMS) as a widely used platform and dynamic SIMS with Nano SIMS and large geometry SIMS as successful instruments. We particularly focus on SIMS utility in microanalysis and imaging of metals and alloys as materials of interest. Additionally, we discuss the challenges in big SIMS data analysis and give examples of machine leaning (ML) and Artificial Intelligence (AI) for effective MSI data analysis. Finally, we recommend the outlook of SIMS development. It is anticipated that in situ and operando SIMS has the potential to significantly enhance the investigation of metals and alloys by enabling real-time examinations of material surfaces and interfaces during dynamic transformations.
Collapse
Affiliation(s)
- Yanjie Shen
- College of Biology and Oceanography, Weifang University, 5147 Dongfeng East Street, Weifang 261061, China
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - Logan Howard
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
- The Bredesen Center, 310 Ferris Hall, 1508 Middle Drive, Knoxville, TN 37996, USA
| | - Xiao-Ying Yu
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
- The Bredesen Center, 310 Ferris Hall, 1508 Middle Drive, Knoxville, TN 37996, USA
| |
Collapse
|
5
|
Zhang W, Zhou Y, Hu X, Ding Y, Gao J, Luo Z, Li T, Kane N, Yu XY, Terlier T, Liu M. A Synergistic Three-Phase, Triple-Conducting Air Electrode for Reversible Proton-Conducting Solid Oxide Cells. ACS Energy Lett 2023; 8:3999-4007. [PMID: 37854047 PMCID: PMC10580316 DOI: 10.1021/acsenergylett.3c01251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/28/2023] [Indexed: 10/20/2023]
Abstract
Reversible proton-conducting solid oxide cells (R-PSOCs) have the potential to be the most efficient and cost-effective electrochemical device for energy storage and conversion. A breakthrough in air electrode material development is vital to minimizing the energy loss and degradation of R-PSOCs. Here we report a class of triple-conducting air electrode materials by judiciously doping transition- and rare-earth metal ions into a proton-conducting electrolyte material, which demonstrate outstanding activity and durability for R-PSOC applications. The optimized composition Ba0.9Pr0.1Hf0.1Y0.1Co0.8O3-δ (BPHYC) consists of three phases, which have a synergistic effect on enhancing the performance, as revealed from electrochemical analysis and theoretical calculations. When applied to R-PSOCs operated at 600 °C, a peak power density of 1.37 W cm-2 is demonstrated in the fuel cell mode, and a current density of 2.40 A cm-2 is achieved at a cell voltage of 1.3 V in the water electrolysis mode under stable operation for hundreds of hours.
Collapse
Affiliation(s)
- Weilin Zhang
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Yucun Zhou
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Xueyu Hu
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Yong Ding
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Jun Gao
- Energy
and Environment Directorate, Pacific Northwest
National Laboratory, Richland, Washington 99354, United States
| | - Zheyu Luo
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Tongtong Li
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
- Energy
Materials and Surface Sciences Unit, Okinawa
Institute of Science and Technology Graduate University, 1919-1 Tancha,
Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
| | - Nicholas Kane
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Xiao-Ying Yu
- Materials
Science and Technology Division, Oak Ridge
National Laboratory, Oak Ridge, Tennessee 99354, United States
| | - Tanguy Terlier
- Shared
Equipment Authority, SIMS Laboratory, Rice
University, Houston, Texas 77005, United States
| | - Meilin Liu
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332-0245, United States
| |
Collapse
|
6
|
Yu XY, Yang C, Gao J, Xiong J, Sui X, Zhong L, Zhang Y, Son J. Molecular detection of per- and polyfluoroalkyl substances in water using time-of-flight secondary ion mass spectrometry. Front Chem 2023; 11:1253685. [PMID: 37867995 PMCID: PMC10587417 DOI: 10.3389/fchem.2023.1253685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023] Open
Abstract
Detection of per- and polyfluoroalkyl substances (PFASs) is crucial in environmental mitigation and remediation of these persistent pollutants. We demonstrate that time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a viable technique to analyze and identify these substances at parts per trillion (ppt) level in real field samples without complicated sample preparation due to its superior surface sensitivity. Several representative PFAS compounds, such as perfluorooctanesulfonic acid (PFOS), perfluorobutanoic acid (PFBA), perfluoropentanoic acid (PFPeA), perfluoheptanoic acid (PFHpA), and perfluorononanoic acid (PFNA), and real-world groundwater samples collected from monitoring wells installed around at a municipal wastewater treatment plant located in Southern California were analyzed in this work. ToF-SIMS spectral comparison depicts sensitive identification of pseudo-molecular ions, characteristic of reference PFASs. Additionally, principal component analysis (PCA) shows clear discrimination among real samples and reference compounds. Our results show that characteristic molecular ion and fragments peaks can be used to identify PFASs. Furthermore, SIMS two-dimensional (2D) images directly exhibit the distribution of perfluorocarboxylic acid (PFCA) and PFOS in simulated mixtures and real wastewater samples. Such findings indicate that ToF-SIMS is useable to determine PFAS compounds in complex environmental water samples. In conclusion, ToF-SIMS provides simple sample preparation and high sensitivity in mass spectral imaging, offering an alternative solution for environmental forensic analysis of PFASs in wastewater in the future.
Collapse
Affiliation(s)
- Xiao-Ying Yu
- Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, TN, United States
| | - Cuiyun Yang
- Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, TN, United States
| | - Jun Gao
- Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, TN, United States
| | - John Xiong
- Haley & Aldrich Inc., Costa Mesa, CA, United States
| | - Xiao Sui
- College of Geography and Environment, Shandong Normal University, Jinan, China
| | - Lirong Zhong
- Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA, United States
| | - Yuchen Zhang
- Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, TN, United States
| | - Jiyoung Son
- Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA, United States
| |
Collapse
|
7
|
Son J, Riechers SL, Yu XY. Microscale Electrochemical Corrosion of Uranium Oxide Particles. Micromachines (Basel) 2023; 14:1727. [PMID: 37763890 PMCID: PMC10537459 DOI: 10.3390/mi14091727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/18/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023]
Abstract
Understanding the corrosion of spent nuclear fuel is important for the development of long-term storage solutions. However, the risk of radiation contamination presents challenges for experimental analysis. Adapted from the system for analysis at the liquid-vacuum interface (SALVI), we developed a miniaturized uranium oxide (UO2)-attached working electrode (WE) to reduce contamination risk. To protect UO2 particles in a miniatured electrochemical cell, a thin layer of Nafion was formed on the surface. Atomic force microscopy (AFM) shows a dense layer of UO2 particles and indicates their participation in electrochemical reactions. Particles remain intact on the electrode surface with slight redistribution. X-ray photoelectron spectroscopy (XPS) reveals a difference in the distribution of U(IV), U(V), and U(VI) between pristine and corroded UO2 electrodes. The presence of U(V)/U(VI) on the corroded electrode surface demonstrates that electrochemically driven UO2 oxidation can be studied using these cells. Our observations of U(V) in the micro-electrode due to the selective semi-permeability of Nafion suggest that interfacial water plays a key role, potentially simulating a water-lean scenario in fuel storage conditions. This novel approach offers analytical reproducibility, design flexibility, a small footprint, and a low irradiation dose, while separating the α-effect. This approach provides a valuable microscale electrochemical platform for spent fuel corrosion studies with minimal radiological materials and the potential for diverse configurations.
Collapse
Affiliation(s)
- Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Shawn L. Riechers
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Xiao-Ying Yu
- Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, TN 37830, USA
| |
Collapse
|
8
|
Hao HX, Chen JM, Wang RR, Yu XY, Wang M, Zhou ZL, Sheng YL, Xia WT. The Value of VR-PVEP in Objective Evaluation of Monocular Refractive Visual Impairment. Fa Yi Xue Za Zhi 2023; 39:382-387. [PMID: 37859477 DOI: 10.12116/j.issn.1004-5619.2022.220610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
OBJECTIVES To study the virtual reality-pattern visual evoked potential (VR-PVEP) P100 waveform characteristics of monocular visual impairment with different impaired degrees under simultaneous binocular perception and monocular stimulations. METHODS A total of 55 young volunteers with normal vision (using decimal recording method, far vision ≥0.8 and near vision ≥0.5) were selected to simulate three groups of monocular refractive visual impairment by interpolation method. The sum of near and far vision ≤0.2 was Group A, the severe visual impairment group; the sum of near and far vision <0.8 was Group B, the moderate visual impairment group; and the sum of near and far vision ≥0.8 was Group C, the mild visual impairment group. The volunteers' binocular normal visions were set as the control group. The VR-PVEP P100 peak times measured by simultaneous binocular perception and monocular stimulation were compared at four spatial frequencies 16×16, 24×24, 32×32 and 64×64. RESULTS In Group A, the differences between P100 peak times of simulant visual impairment eyes and simultaneous binocular perception at 24×24, 32×32 and 64×64 spatial frequencies were statistically significant (P<0.05); and the P100 peak time of normal vision eyes at 64×64 spatial frequency was significantly different from the simulant visual impairment eyes (P<0.05). In Group B, the differences between P100 peak times of simulant visual impairment eyes and simultaneous binocular perception at 16×16, 24×24 and 64×64 spatial frequencies were statistically significant (P<0.05); and the P100 peak time of normal vision eyes at 64×64 spatial frequency was significantly different from the simulant visual impairment eyes (P<0.05). In Group C, there was no significant difference between P100 peak times of simulant visual impairment eyes and simultaneous binocular perception at all spatial frequencies (P>0.05). There was no significant difference in the P100 peak times measured at all spatial frequencies between simulant visual impairment eyes and simultaneous binocular perception in the control group (P>0.05). CONCLUSIONS VR-PVEP can be used for visual acuity evaluation of patients with severe and moderate monocular visual impairment, which can reflect the visual impairment degree caused by ametropia. VR-PVEP has application value in the objective evaluation of visual function and forensic clinical identification.
Collapse
Affiliation(s)
- Hong-Xia Hao
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Jie-Min Chen
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Rong-Rong Wang
- Shanghai NCC Electronic Co., Ltd., Shanghai 200245, China
| | - Xiao-Ying Yu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Meng Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Zhi-Lu Zhou
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
- School of Forensic Medicine, Guizhou Medical University, Guiyang 550009, China
| | - Yan-Liang Sheng
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
| | - Wen-Tao Xia
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| |
Collapse
|
9
|
Parker GD, Hanley L, Yu XY. Mass Spectral Imaging to Map Plant-Microbe Interactions. Microorganisms 2023; 11:2045. [PMID: 37630605 PMCID: PMC10459445 DOI: 10.3390/microorganisms11082045] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/23/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Plant-microbe interactions are of rising interest in plant sustainability, biomass production, plant biology, and systems biology. These interactions have been a challenge to detect until recent advancements in mass spectrometry imaging. Plants and microbes interact in four main regions within the plant, the rhizosphere, endosphere, phyllosphere, and spermosphere. This mini review covers the challenges within investigations of plant and microbe interactions. We highlight the importance of sample preparation and comparisons among time-of-flight secondary ion mass spectroscopy (ToF-SIMS), matrix-assisted laser desorption/ionization (MALDI), laser desorption ionization (LDI/LDPI), and desorption electrospray ionization (DESI) techniques used for the analysis of these interactions. Using mass spectral imaging (MSI) to study plants and microbes offers advantages in understanding microbe and host interactions at the molecular level with single-cell and community communication information. More research utilizing MSI has emerged in the past several years. We first introduce the principles of major MSI techniques that have been employed in the research of microorganisms. An overview of proper sample preparation methods is offered as a prerequisite for successful MSI analysis. Traditionally, dried or cryogenically prepared, frozen samples have been used; however, they do not provide a true representation of the bacterial biofilms compared to living cell analysis and chemical imaging. New developments such as microfluidic devices that can be used under a vacuum are highly desirable for the application of MSI techniques, such as ToF-SIMS, because they have a subcellular spatial resolution to map and image plant and microbe interactions, including the potential to elucidate metabolic pathways and cell-to-cell interactions. Promising results due to recent MSI advancements in the past five years are selected and highlighted. The latest developments utilizing machine learning are captured as an important outlook for maximal output using MSI to study microorganisms.
Collapse
Affiliation(s)
- Gabriel D. Parker
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, USA
| | - Luke Hanley
- Department of Chemistry, University of Illinois Chicago, Chicago, IL 60607, USA
| | - Xiao-Ying Yu
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| |
Collapse
|
10
|
Yu XY, Son J, Terlier T, Riechers S, Tripathi S, Sevigny G. Multimodal Imaging of Light Isotope Distributions in Irradiated Materials. Microsc Microanal 2023; 29:1949-1950. [PMID: 37612938 DOI: 10.1093/micmic/ozad067.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Xiao-Ying Yu
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, WA, USA
| | | | - Shawn Riechers
- Energy and Environment Directorate, Pacific Northwest National Laboratory, WA, USA
| | - Shalini Tripathi
- Energy and Environment Directorate, Pacific Northwest National Laboratory, WA, USA
| | - Gary Sevigny
- Energy and Environment Directorate, Pacific Northwest National Laboratory, WA, USA
| |
Collapse
|
11
|
Yang C, Song G, Son J, Howard L, Yu XY. Revealing the Bacterial Quorum-Sensing Effect on the Biofilm Formation of Diatom Cylindrotheca sp. Using Multimodal Imaging. Microorganisms 2023; 11:1841. [PMID: 37513013 PMCID: PMC10383543 DOI: 10.3390/microorganisms11071841] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/15/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Diatoms contribute to carbon fixation in the oceans by photosynthesis and always form biofouling organized by extracellular polymeric substances (EPS) in the marine environment. Bacteria-produced quorum-sensing signal molecules N-acyl homoserine lactones (AHLs) were found to play an important role in the development of Cylindrotheca sp. in previous studies, but the EPS composition change was unclear. This study used the technology of alcian blue staining and scanning electron microscopy (SEM), confocal laser scanning microscopy (CLSM), and time-of-flight secondary ion mass spectrometry (ToF-SIMS) to directly observe the biofilm formation process. The results showed that AHLs promote the growth rates of diatoms and the EPS secretion of biofilm components. AHLs facilitated the diatom-biofilm formation by a forming process dependent on the length of carbon chains. AHLs increased the biofilm thickness and the fluorescence intensity and then altered the three-dimensional (3D) structures of the diatom-biofilm. In addition, the enhanced EPS content in the diatom-biofilm testified that AHLs aided biofilm formation. This study provides a collection of new experimental evidence of the interaction between bacteria and microalgae in fouling biofilms.
Collapse
Affiliation(s)
- Cuiyun Yang
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Guojuan Song
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Logan Howard
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - Xiao-Ying Yu
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| |
Collapse
|
12
|
Zhou ZL, Yan YF, Chen JM, Liu RJ, Yu XY, Wang M, Hao HX, Liu DM, Zhang Q, Wang J, Xia WT. Predicting visual acuity with machine learning in treated ocular trauma patients. Int J Ophthalmol 2023; 16:1005-1014. [PMID: 37465511 PMCID: PMC10333235 DOI: 10.18240/ijo.2023.07.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 05/29/2023] [Indexed: 07/20/2023] Open
Abstract
AIM To predict best-corrected visual acuity (BCVA) by machine learning in patients with ocular trauma who were treated for at least 6mo. METHODS The internal dataset consisted of 850 patients with 1589 eyes and an average age of 44.29y. The initial visual acuity was 0.99 logMAR. The test dataset consisted of 60 patients with 100 eyes collected while the model was optimized. Four different machine-learning algorithms (Extreme Gradient Boosting, support vector regression, Bayesian ridge, and random forest regressor) were used to predict BCVA, and four algorithms (Extreme Gradient Boosting, support vector machine, logistic regression, and random forest classifier) were used to classify BCVA in patients with ocular trauma after treatment for 6mo or longer. Clinical features were obtained from outpatient records, and ocular parameters were extracted from optical coherence tomography images and fundus photographs. These features were put into different machine-learning models, and the obtained predicted values were compared with the actual BCVA values. The best-performing model and the best variable selected were further evaluated in the test dataset. RESULTS There was a significant correlation between the predicted and actual values [all Pearson correlation coefficient (PCC)>0.6]. Considering only the data from the traumatic group (group A) into account, the lowest mean absolute error (MAE) and root mean square error (RMSE) were 0.30 and 0.40 logMAR, respectively. In the traumatic and healthy groups (group B), the lowest MAE and RMSE were 0.20 and 0.33 logMAR, respectively. The sensitivity was always higher than the specificity in group A, in contrast to the results in group B. The classification accuracy and precision were above 0.80 in both groups. The MAE, RMSE, and PCC of the test dataset were 0.20, 0.29, and 0.96, respectively. The sensitivity, precision, specificity, and accuracy of the test dataset were 0.83, 0.92, 0.95, and 0.90, respectively. CONCLUSION Predicting BCVA using machine-learning models in patients with treated ocular trauma is accurate and helpful in the identification of visual dysfunction.
Collapse
Affiliation(s)
- Zhi-Lu Zhou
- Department of Forensic Medicine, Guizhou Medical University, Guiyang 550009, Guizhou Province, China
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
| | - Yi-Fei Yan
- The SMART (Smart Medicine and AI-based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
- School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
| | - Jie-Min Chen
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
| | - Rui-Jue Liu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
| | - Xiao-Ying Yu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
| | - Meng Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
| | - Hong-Xia Hao
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
- Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
| | - Dong-Mei Liu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
| | - Qi Zhang
- The SMART (Smart Medicine and AI-based Radiology Technology) Lab, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
- School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
| | - Jie Wang
- Department of Forensic Medicine, Guizhou Medical University, Guiyang 550009, Guizhou Province, China
| | - Wen-Tao Xia
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China
| |
Collapse
|
13
|
Zhang Y, Plymale A, Son J, Huang Q, Chen W, Yu XY. Reducing the matrix effect in mass spectral imaging of biofilms using flow-cell culture. Front Chem 2023; 11:1203314. [PMID: 37304684 PMCID: PMC10248399 DOI: 10.3389/fchem.2023.1203314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 05/16/2023] [Indexed: 06/13/2023] Open
Abstract
The interactions between soil microorganisms and soil minerals play a crucial role in the formation and evolution of minerals and the stability of soil aggregates. Due to the heterogeneity and diversity of the soil environment, the under-standing of the functions of bacterial biofilms in soil minerals at the microscale is limited. A soil mineral-bacterial biofilm system was used as a model in this study, and it was analyzed by time-of-flight secondary ion mass spectrometry (ToF-SIMS) to acquire molecular level information. Static culture in multi-wells and dynamic flow-cell culture in microfluidics of biofilms were investigated. Our results show that more characteristic molecules of biofilms can be observed in SIMS spectra of the flow-cell culture. In contrast, biofilm signature peaks are buried under the mineral components in SIMS spectra in the static culture case. Spectral overlay was used in peak selection prior to performing Principal component analysis (PCA). Comparisons of the PCA results between the static and flow-cell culture show more pronounced molecular features and higher loadings of organic peaks of the dynamic cultured specimens. For example, fatty acids secreted from bacterial biofilm extracellular polymeric substance are likely to be responsible for biofilm dispersal due to mineral treatment up to 48 h. Such findings suggest that the use of microfluidic cells to dynamically culture biofilms be a more suitable method for reducing the matrix effect arisen from the growth medium and minerals as a perturbation fac-tor for improved spectral and multivariate analysis of complex mass spectral data in ToF-SIMS. These results show that the interaction mechanism between biofilms and soil minerals at the molecular level can be better studied using the flow-cell culture and advanced mass spectral imaging techniques like ToF-SIMS.
Collapse
Affiliation(s)
- Yuchen Zhang
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Andrew Plymale
- Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA, United States
| | - Jiyoung Son
- Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA, United States
| | - Qiaoyun Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Wenli Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Xiao-Ying Yu
- Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, TN, United States
| |
Collapse
|
14
|
Hou H, Ren H, Royer P, Yu XY. A geospatial risk analysis graphical user interface for identifying hazardous chemical emission sources. PeerJ 2023; 11:e14664. [PMID: 36691483 PMCID: PMC9864114 DOI: 10.7717/peerj.14664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 12/09/2022] [Indexed: 01/20/2023] Open
Abstract
Background Performing back trajectory and forward trajectory using the Hybrid Single-Particle Lagrangian Integrated Trajectory Model (HYSPLIT) is a reliable approach for assessing particle transport after release among mid-field atmospheric models. HYSPLIT has an externally facing online interface that allows non-expert users to run the model trajectories without requiring extensive training or programming. However, the existing HYSPLIT interface is limited if simulations have a large amount of meteorological data and timesteps that are not coincident. The objective of this study is to design and develop a more robust tool to rapidly evaluate hazard transport conditions and to perform risk analysis, while still maintaining an intuitive and user-friendly interface. Methods HYSPLIT calculates forward and backward trajectories of particles based on wind speed, wind direction, and the corresponding location, timestamp, and Pasquill stability classes of the regions of the atmosphere in terms of the wind speed, the amount of solar radiation, and the fractional cloud cover. The computed particle transport trajectories, combined with the online Proton Transfer Reaction-Mass Spectrometry (PTR-MS) data (https://figshare.com/articles/dataset/ARL_Data_from_PROS_station_at_Hanford_site/19993964), can be used to identify and quantify the sources and affected area of the hazardous chemicals' emission using the potential source distribution function (PSDF). PSDF is an improved statistical function based on the well-known potential source contribution function (PSCF) in establishing the air pollutant source and receptor relationship. Performing this analysis requires a range of meteorological and pollutant concentration measurements to be statistically meaningful. The existing HYSPLIT graphical user interface (GUI) does not easily permit computations of trajectories of a dataset of meteorological data in high temporal frequency. To improve the performance of HYSPLIT computations from a large dataset and enhance risk analysis of the accidental release of material at risk, a geospatial risk analysis tool (GRAT-GUI) is created to allow large data sets to be processed instantaneously and to provide ease of visualization. Results The GRAT-GUI is a native desktop-based application and can be run in any Windows 10 system without any internet access requirements, thus providing a secure way to process large meteorological datasets even on a standalone computer. GRAT-GUI has features to import, integrate, and convert meteorological data with various formats for hazardous chemical emission source identification and risk analysis as a self-explanatory user interface. The tool is available at https://figshare.com/articles/software/GRAT/19426742.
Collapse
Affiliation(s)
- Hongfei Hou
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Huiying Ren
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Patrick Royer
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Xiao-Ying Yu
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States of America
| |
Collapse
|
15
|
Yu XY, Zhao MY, Zhang Y, Xu G. [Research advances on the treatment of diabetic foot ulcers with autologous platelet-rich fibrin]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:1185-1189. [PMID: 36594150 DOI: 10.3760/cma.j.cn501225-20220110-00001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Diabetic foot is one of the serious complications of diabetic patients, which makes the society and public health bear a huge economic burden. In recent years, more and more studies at home and abroad have been conducted on the treatment of chronic wounds with autologous platelet-rich fibrin, and the therapeutic concepts and methods have been updated constantly. In this paper, we reviewed the general situation of autologous platelet-rich fibrin, the mechanism of autologous platelet-rich fibrin in promoting the healing of diabetic foot ulcers and the new progress in its application, so as to provide a new strategy for the repair of diabetic foot ulcers.
Collapse
Affiliation(s)
- X Y Yu
- Graduate School of Dalian Medical University, Dalian 116044, China
| | - M Y Zhao
- The First Department of Facial and Neck Plastic Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, China
| | - Y Zhang
- Department of Burns and Plastic Surgery, Subei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - G Xu
- Department of Burns and Plastic Surgery, Subei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| |
Collapse
|
16
|
Zheng Y, Yu XY, Huang XW. [Research progress of bile acid spectrum in hereditary deficiency of bile acid synthesis]. Zhonghua Er Ke Za Zhi 2022; 60:843-847. [PMID: 35922203 DOI: 10.3760/cma.j.cn112140-20220107-00024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Y Zheng
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - X Y Yu
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - X W Huang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| |
Collapse
|
17
|
Son J, Buck EC, Riechers SL, Tripathi S, Strange LE, Engelhard MH, Yu XY. Studying Corrosion Using Miniaturized Particle Attached Working Electrodes and the Nafion Membrane. Micromachines (Basel) 2021; 12:mi12111414. [PMID: 34832825 PMCID: PMC8618753 DOI: 10.3390/mi12111414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022]
Abstract
We developed a new approach to attach particles onto a conductive layer as a working electrode (WE) in a microfluidic electrochemical cell with three electrodes. Nafion, an efficient proton transfer molecule, is used to form a thin protection layer to secure particle electrodes. Spin coating is used to develop a thin and even layer of Nafion membrane. The effects of Nafion (5 wt% 20 wt%) and spinning rates were evaluated using multiple sets of replicates. The electrochemical performance of various devices was demonstrated. Additionally, the electrochemical performance of the devices is used to select and optimize fabrication conditions. The results show that a higher spinning rate and a lower Nafion concentration (5 wt%) induce a better performance, using cerium oxide (CeO2) particles as a testing model. The WE surfaces were characterized using atomic force microscopy (AFM), scanning electron microscopy-focused ion beam (SEM-FIB), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and X-ray photoelectron spectroscopy (XPS). The comparison between the pristine and corroded WE surfaces shows that Nafion is redistributed after potential is applied. Our results verify that Nafion membrane offers a reliable means to secure particles onto electrodes. Furthermore, the electrochemical performance is reliable and reproducible. Thus, this approach provides a new way to study more complex and challenging particles, such as uranium oxide, in the future.
Collapse
Affiliation(s)
- Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Edgar C. Buck
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Shawn L. Riechers
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Shalini Tripathi
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Lyndi E. Strange
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Mark H. Engelhard
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA;
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
- Correspondence: ; Tel.: +1-509-372-4524
| |
Collapse
|
18
|
Zhang Y, Komorek R, Son J, Riechers S, Zhu Z, Jansson J, Jansson C, Yu XY. Molecular imaging of plant-microbe interactions on the Brachypodium seed surface. Analyst 2021; 146:5855-5865. [PMID: 34378550 DOI: 10.1039/d1an00205h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Plant growth-promoting rhizobacteria (PGPR) play a crucial role in biological control and pathogenic defense on and within plant tissues, however the mechanisms by which plants associate with PGPR to elicit such beneficial effects need further study. Here, we present time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging of Brachypodium distachyon (Brachypodium) seeds with and without exposure to two model PGPR, i.e., Gram-negative Pseudomonas fluorescens SBW25 (P.) and Gram-positive Arthrobacter chlorophenolicus A6 (A.). Delayed image extraction was used to image PGPR-treated seed sections to reveal morphological changes. ToF-SIMS spectral comparison, principal component analysis (PCA), and two-dimensional (2D) imaging show that the selected PGPR have different effects on the host seed surface, resulting in changes in chemical composition and morphology. Metabolite products and biomarkers, such as flavonoids, phenolic compounds, fatty acids, and indole-3-acetic acid (IAA), were identified on the PGPR-treated seed surfaces. These compounds have different distributions on the Brachypodium seed surface for the two PGPR, indicating that the different bacteria elicit distinct responses from the host. Our results illustrate that ToF-SIMS is an effective tool to study plant-microbe interactions and to provide insightful information with submicrometer lateral resolution of the chemical distributions associated with morphological features, potentially offering a new way to study the mechanisms underlying beneficial roles of PGPR.
Collapse
Affiliation(s)
- Yuchen Zhang
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Rachel Komorek
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Shawn Riechers
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Zihua Zhu
- Environmental and Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Janet Jansson
- Earth and Biological Science Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Christer Jansson
- Environmental and Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| |
Collapse
|
19
|
Xie ZY, Yu XY, Li Y. [Strategy for hemodynamic monitoring and treatment in critical patients: the preliminary exploration of the combination of macro- and micro-circulation protocol]. Zhonghua Nei Ke Za Zhi 2021; 60:511-515. [PMID: 34058806 DOI: 10.3760/cma.j.cn112138-20210311-00205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Z Y Xie
- Department of Critical Care Medicine, Tsinghua Changgung Hospital, Clinical School of Medicine, Tsinghua University, Beijing 102218, China
| | - X Y Yu
- Critical Care Medicine Center, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Y Li
- Critical Care Medicine Center, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| |
Collapse
|
20
|
Wen Y, Yu LZ, Du LB, Wei DH, Liu YY, Yang ZY, Zheng YD, Wu Z, Yu XY, Zhao L, Yu YW, Chen HD, Ren JS, Qin C, Xu YJ, Cao W, Wang F, Li J, Tan FW, Dai M, Chen WQ, Li N, He J. [Analysis of low-dose computed tomography compliance and related factors among high-risk population of lung cancer in three provinces participating in the cancer screening program in urban China]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:633-639. [PMID: 34034404 DOI: 10.3760/cma.j.cn112150-20201015-01286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the compliance and related factors of low-dose computed tomography (LDCT) screening among the high-risk population of lung cancer in three provinces participating in the cancer early diagnosis and early treatment program in urban areas of China. Methods: From October 2017 to October 2018, 17 983 people aged between 40 and 74 years old at high risk of lung cancer were recruited from Zhejiang, Anhui and Liaoning provinces. The basic demographic characteristics, living habits, history of the disease and family history of cancer were collected by using a cancer risk assessment questionnaire, and the data of participants examined by LDCT were obtained from the hospitals participating in the program. The screening compliance was quantified by the screening participation rate, and it was calculated as the proportion of participants completing LDCT scan among high-risk population. The related factors of LDCT screening compliance were analyzed by using a multivariate logistic regression model. Results: The age of 17 983 participants was (56.52±8.22) years old. Males accounted for 51.9% (N=9 332), and 69.5% (N=12 495) had ever smoked, including former smokers and current smokers. A total of 6 269 participants were screened by LDCT, and the screening participation rate was 34.86%. The results of multivariate logistic regression analysis showed that the age group of 50 to 69 years old, female, passive smokers, alcohol consumption, family history of lung cancer and history of chronic respiratory diseases were more likely to be screened by LDCT, while the compliance of LDCT screening in current smokers was low. Conclusions: The LDCT screening compliance of the high-risk population of lung cancer in urban areas of China still needs to be improved. Age, sex, smoking, drinking, family history of lung cancer and history of chronic respiratory disease are associated with screening compliance.
Collapse
Affiliation(s)
- Y Wen
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Z Yu
- Institute for Chronic and Non-communicable Disease Prevention and Control, Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110005, China
| | - L B Du
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou 310004, China
| | - D H Wei
- Department of Medical Examination for Cancer Prevention, Anhui Provincial Cancer Hospital, Hefei 230032, China
| | - Y Y Liu
- The Department of Cancer Prevention and Control, Liaoning Cancer Hospital/Institute, Shenyang 110042, China
| | - Z Y Yang
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y D Zheng
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z Wu
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Y Yu
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Zhao
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y W Yu
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H D Chen
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J S Ren
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing 100021, China
| | - C Qin
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y J Xu
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Cao
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - F Wang
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing 100021, China
| | - F W Tan
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - M Dai
- Office of Cancer Screening/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Q Chen
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing 100021, China
| | - N Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing 100021, China
| | - J He
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| |
Collapse
|
21
|
Sun DQ, Lei L, Cai Y, Li H, Cao MM, He SY, Yu XY, Peng J, Chen WQ. [Research advances in the relationship of dietary factors and prostate cancer risk]. Zhonghua Zhong Liu Za Zhi 2021; 43:443-448. [PMID: 33902206 DOI: 10.3760/cma.j.cn112152-20200610-00544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Prostate cancer is the second most common malignancy in men worldwide. An increasing trend for prostate cancer incidence was observed in China. Enormous studies have been conducted to investigate the association between dietary factors and prostate cancer, however conflicted results were obtained. Red meat, processed meat, and dairy products consumption were reported to be associated with the increased prostate cancer risk, while tomatoes, soybeans and green tea might reduce the risk of prostate cancer occurance. However, no consensus could be reached without strong evidence. Furthermore, further studies are needed to investigate the association between vitamin and mineral supplements and prostate cancer risk. Some studies reported that men with higher dietary inflammatory index scores increased prostate cancer risk. There may be a long susceptible period when dietary factors affect prostate cancer risk, which poses challenges for collecting exposure and the follow-up. Measure bias and detection bias are the main reasons which impair the authenticity of studies on the relationship of dietary factors and prostate cancer risk. Researchers should apply various methods to measure participants' dietary consumption levels and ascertain essential outcomes, such as prostate cancer death. This article reviews updated epidemiological evidences on the association of dietary factors and prostate cancer, aims to benefit future nutritional epidemiology studies focus on the prostate cancer prevention.
Collapse
Affiliation(s)
- D Q Sun
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Lei
- Department of Cancer Prevention and Control, Shenzhen Center for Chronic Disease Control, Shenzhen 518020, China
| | - Y Cai
- School of Public Health, Peking University, Beijing 100191, China
| | - H Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - M M Cao
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S Y He
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Y Yu
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Peng
- Department of Cancer Prevention and Control, Shenzhen Center for Chronic Disease Control, Shenzhen 518020, China
| | - W Q Chen
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| |
Collapse
|
22
|
Yu XY, Zou Y, Zheng QW, Lu FX, Li DH, Guo LQ, Lin JF. Physicochemical, functional and structural properties of the major protein fractions extracted from Cordyceps militaris fruit body. Food Res Int 2021; 142:110211. [PMID: 33773685 DOI: 10.1016/j.foodres.2021.110211] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/24/2021] [Accepted: 01/30/2021] [Indexed: 01/24/2023]
Abstract
The physicochemical and functional as well as structural properties of major protein fractions (albumin, globulin, glutelin) sequentially extracted in water, salt, alkaline solution respectively from Cordyceps militaris Minfu20 fruit body were investigated. The glutelin (43.11%, w/w) was the predominant protein component of C. militaris fruit body followed by albumin (36.47%) and globulin (17.94%). The three proteins extracted from different solvents showed different characteristics, which were related to the alternation of amino acid composition, surface hydrophobicity, and structural feature. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) showed that the albumin and globulin mainly consisted of polypeptides with size < 20 kDa. The glutelin showed serious staining on the lane which may have a relatively bigger molecular weight. Intrinsic fluorescence intensity (FI) suggested glutelin contained more unfolding conformations (highest FI) which were probably resulted in a better foaming capacity of 151% and emulsion formation with the smallest size oil droplets (10.410 µm). The protein fractions showed great nutritional quality since they satisfied all recommended essential amino acid allowances for adults of Food & Agriculture Organization (FAO)/World Health Organization (WHO). Therefore, Cordyceps militaris Minfu20 fruit body proteins have potential alternative renewable edible fungi (mushroom) protein and could be used effectively as a food ingredient to improve food nutrition and product diversification compared with plant proteins.
Collapse
Affiliation(s)
- Xiao-Ying Yu
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Yuan Zou
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Qian-Wang Zheng
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Feng-Xian Lu
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - De-Huai Li
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Li-Qiong Guo
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China.
| | - Jun-Fang Lin
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou 510640, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China.
| |
Collapse
|
23
|
Tang WY, Chen JM, Wang RR, Tan SL, Liu DM, Yu XY, Li HH, Zhang QF, Sheng YL, Xia WT. [Application of the Virtual Reality-Pattern Visual Evoked Potential in Forensic Visual Acuity Evaluation]. Fa Yi Xue Za Zhi 2021; 36:762-766. [PMID: 33550723 DOI: 10.12116/j.issn.1004-5619.2020.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Indexed: 11/30/2022]
Abstract
Abstract Objective To explore a kind of visual evoked potential test equipment and method that is more suitable for the application of forensic clinical visual acuity evaluation. Methods Thirty-four volunteers (68 eyes) were selected, including 15 males and 19 females, aged between 20 and 40 years. Test lenses were placed before the tested eyes of volunteers to induce refractive myopia with insert method, and the diopter lenses were adjusted so that the visual acuity level of one eye of volunteers was above 0.8, and the visual acuity of the other eye was at moderate damage level (<0.3 and ≥0.1). The tests were carried out under the binocular simultaneous asynchronous stimulation mode (hereinafter referred to as "binocular mode") and monocular separate stimulation mode (hereinafter referred to as "monocular mode") of virtual reality-pattern visual evoked potential (VR-PVEP), and the amplitude of PVEP of volunteers under the two modes was compared at four spatial frequencies of 8×8, 16×16, 24×24 and 32×32. Results The differences in the amplitude of P100 wave between monocular and binocular modes at 8×8 spatial frequency had no statistical significance and the differences in amplitude of P100 wave between monocular and binocular modes at 16×16, 24×24, and 32×32 spatial frequencies had statistical significance (P<0.05). The amplitude of the same eye in monocular mode was higher than that in binocular mode. Through correlation analysis, it was found that the amplitude of P100 wave in monocular mode was moderately correlated with amplitude of P100 wave in binocular mode. Conclusion In forensic identification practice, VR-PVEP is helpful for overcoming the disturbance of poor fixation, and to increase the reliability of PVEP evaluation results. It can greatly shorten the detection time of PVEP and improve work efficiency.
Collapse
Affiliation(s)
- W Y Tang
- Basic Medical College of Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
| | - J M Chen
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - R R Wang
- Shanghai NCC Electronic Corp., Ltd, Shanghai 200063, China
| | - S L Tan
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - D M Liu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - X Y Yu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - H H Li
- Shanghai NCC Electronic Corp., Ltd, Shanghai 200063, China
| | - Q F Zhang
- Shanghai NCC Electronic Corp., Ltd, Shanghai 200063, China
| | - Y L Sheng
- Basic Medical College of Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
| | - W T Xia
- Basic Medical College of Jiamusi University, Jiamusi 154007, Heilongjiang Province, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| |
Collapse
|
24
|
Abstract
Air-liquid interfacial processing of volatile organic compound photooxidation has been suggested as an important source of secondary organic aerosols. However, owing to the lack of techniques for studying the air-liquid interface, the detailed interfacial mechanism remains speculative. To obviate this, we enabled in situ synchrotron-based vacuum ultraviolet single photon ionization mass spectrometry using the system for analysis at the liquid-vacuum interface microreactor to study glyoxal photooxidation at the air-liquid interface. Determination of reaction intermediates and new oxidation products, including polymers and oligomers, by mass spectral analysis and appearance energy measurements has been reported for the first time. Furthermore, an expanded reaction mechanism of photooxidation and free radical induced reactions as a source of aqueous secondary organic aerosol formation is proposed. Single photon ionization can provide new insights into interfacial chemistry.
Collapse
Affiliation(s)
- Xiao Sui
- College of Geography and Environment, Shandong Normal University, Jinan, 250358, China
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Bo Xu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California. 94720, United States
| | - Jenn Yao
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Oleg Kostko
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California. 94720, United States
| | - Musahid Ahmed
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California. 94720, United States
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| |
Collapse
|
25
|
Burns CA, Veldman TG, Serkowski J, Daniel RC, Yu XY, Minette MJ, Pease LF. Mesofluidic separation versus dead-end filtration. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
26
|
Sui RD, Wang HT, Yu XY, Zhang XQ, Wei XL, Xin DY, Han DW. Diagnostic value of three-dimensional reconstruction with multislice spiral CT angiography in patients with cerebrovascular disease. J BIOL REG HOMEOS AG 2020; 34:1787-1792. [PMID: 33164473 DOI: 10.23812/20-351-l] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- R D Sui
- Department of Radiology, Linyi Central Hospital, Linyi, Shandong Province, China
| | - H T Wang
- Department of Radiology, Linyi Central Hospital, Linyi, Shandong Province, China
| | - X Y Yu
- Department of Radiology, Linyi Traditional Chinese Medicine Hospital, Linyi, Shandong Province, China
| | - X Q Zhang
- Department of Orthopedics, YiShui People's Hospital, Linyi, Shandong Province, China
| | - X L Wei
- Department of Radiology, Linyi Central Hospital, Linyi, Shandong Province, China
| | - D Y Xin
- Department of Radiology, Linyi Central Hospital, Linyi, Shandong Province, China
| | - D W Han
- Department of Radiology, Huangdao District Central Hospital of Qingdao, Qingdao, Shandong Province, China
| |
Collapse
|
27
|
Abstract
Direct interspecies electron transfer (DIET) has been considered as a novel and highly efficient strategy in both natural anaerobic environments and artificial microbial fuel cells. A syntrophic model consisting of Geobacter metallireducens and Geobacter sulfurreducens was studied in this work. We conducted in vivo molecular mapping of the outer surface of the syntrophic community as the interface of nutrients and energy exchange. System for Analysis at the Liquid Vacuum Interface combined with time-of-flight secondary ion mass spectrometry was employed to capture the molecular distribution of syntrophic Geobacter communities in the living and hydrated state. Principal component analysis with selected peaks revealed that syntrophic Geobacter aggregates were well differentiated from other control samples, including syntrophic planktonic cells, pure cultured planktonic cells, and single population biofilms. Our in vivo imaging indicated that a unique molecular surface was formed. Specifically, aromatic amino acids, phosphatidylethanolamine components, and large water clusters were identified as key components that favored the DIET of syntrophic Geobacter aggregates. Moreover, the molecular changes in depths of the Geobacter aggregates were captured using dynamic depth profiling. Our findings shed new light on the interface components supporting electron transfer in syntrophic communities based on in vivo molecular imaging.
Collapse
Affiliation(s)
- Wenchao Wei
- Key Laboratory of Coastal Biology and Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, P. R. China.,Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Andrew Plymale
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zihua Zhu
- Environmental and Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Xiang Ma
- Department of Chemistry, Grand View University, Des Moines, Iowa 50316, United States
| | - Fanghua Liu
- Key Laboratory of Coastal Biology and Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, P. R. China
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| |
Collapse
|
28
|
Wu JM, Zhuo YY, Qin XL, Yu XY, Hu S, Ning Y. [Pelvic-sacral tendon-regulation needling technique of acupuncture combined with manipulative reduction in treatment of postpartum pelvic girdle pain: a randomized controlled trial]. Zhongguo Zhen Jiu 2020; 40:262-6. [PMID: 32270638 DOI: 10.13703/j.0255-2930.20190313-k0002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To observe the effect on postpartum pelvic girdle pain treated with the combined therapy of pelvic-sacral tendon-regulation needling technique of acupuncture and manipulative reduction and the simple manipulative therapy. METHODS A total of 80 patients with postpartum pelvic girdle pain were randomized into an observation group and a control group, 40 cases in each one. In the control group, the manipulative reduction was simply adopted. In the observation group, on the base of the treatment as the control group, the pelvic-sacral tendon-regulation needling technique of acupuncture was applied at Mingmen (GV 4), Dachangshu (BL 25), Yaoyangguan (GV 3), Ciliao (BL 32), Zhongliao (BL 33), Huantiao (GB 30) and Yanglingquan (GB 34). In either group, the treatment was given once every two days, three times a week and 3 treatments taken as one course. Totally, 3 courses of treatment were required. The clinical therapeutic effect was compared in the patients between the two groups. The changes in the scores of the pain visual analogue scale (VAS), Oswestry dysfunction index (ODI) and Japanese Orthopaedic Association (JOA), as well as the pelvic floor distress inventory-short form 20 (PFDI-20), the pelvic floor impact questionnaire (PFIQ-7) and the sex life index (the frequency of intercourse and orgasm) were recorded in the patients of the two groups before and after treatment. RESULTS The total effective rate was 95.0% (38/40) in the observation group, higher than 77.5% (31/40) in the control group (P<0.01). After treatment, the scores of VAS, ODI, PFDI-20 and PFIQ-7 were lower than those before treatment respectively in the patients of the two groups (P<0.01). JOA score and the sex life index were increased after treatment as compared with those before treatment in the two groups (P<0.01). The difference value of each of the above indexes in the observation group was higher than the control group (P<0.01). CONCLUSION The combined therapy of pelvic-sacral tendon-regulation needling technique of acupuncture and manipulative reduction effectively alleviates pain and improves the muscle strength of pelvic floor muscle fibers in the patients with postpartum pelvic girdle pain. Its therapeutic effect is better than that of the simple manipulative therapy.
Collapse
Affiliation(s)
- Jia-Man Wu
- Department of TCM, Shenzhen Maternity and Children Healthcare Hospital Affiliated to Southern Medical University, Shenzhen 518028, Guangdong Province, China
| | - Yuan-Yuan Zhuo
- Department of Acupuncture and Moxibustion, Shenzhen TCM Hospital
| | - Xiao-Ling Qin
- Department of TCM, Shenzhen Maternity and Children Healthcare Hospital Affiliated to Southern Medical University, Shenzhen 518028, Guangdong Province, China
| | - Xiao-Ying Yu
- Department of TCM, Shenzhen Maternity and Children Healthcare Hospital Affiliated to Southern Medical University, Shenzhen 518028, Guangdong Province, China
| | - Shan Hu
- Department of TCM, Shenzhen Maternity and Children Healthcare Hospital Affiliated to Southern Medical University, Shenzhen 518028, Guangdong Province, China
| | - Yan Ning
- Department of TCM, Shenzhen Maternity and Children Healthcare Hospital Affiliated to Southern Medical University, Shenzhen 518028, Guangdong Province, China
| |
Collapse
|
29
|
Komorek R, Xu B, Yao J, Kostko O, Ahmed M, Yu XY. Probing sulphur clusters in a microfluidic electrochemical cell with synchrotron-based photoionization mass spectrometry. Phys Chem Chem Phys 2020; 22:14449-14453. [PMID: 32582899 DOI: 10.1039/d0cp02472d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present synchrotron-based mass spectrometry to probe products formed in a lithium sulphide electrolyte. In operando analysis was carried out at two different potentials in a vacuum compatible microfluidic electrochemical cell. Mass spectral observations show that the charged electrolyte formed sulphur clusters under dynamic conditions, demonstrating electrolyte electron shuttling.
Collapse
Affiliation(s)
- Rachel Komorek
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Bo Xu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA. 94720, USA
| | - Jennifer Yao
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Oleg Kostko
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA. 94720, USA
| | - Musahid Ahmed
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA. 94720, USA
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| |
Collapse
|
30
|
Yang PY, Liu MM, Fan HQ, Yang YP, Han W, Yu XY, Yue TT, Su KJ, Guo Q, Gao SJ, Jin FY. [The prognostic significance of dynamic monitoring of minimal residual disease (MRD) status in patients with newly-diagnosed multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:584-588. [PMID: 32397022 PMCID: PMC7364907 DOI: 10.3760/cma.j.issn.0253-2727.2019.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the prognostic value of kinetic changes in minimal residual disease (MRD) status, as well as its relationship with risk stratification, therapeutic response and treatment in patients with newly-diagnosed multiple myeloma (MM) . Methods: A total of 135 patients with newly-diagnosed MM were screened, and 105 patients who achieved VGPR or more as the best responses were included into this study. The MRD status was determined by multiparameter flow cytometry (MFC) at multiple intervals after two cycles of treatment until clinical relapse, death, or last follow-up. The statistical methods included Kaplan-Meier analysis, Cox regression, etc. Results: ①In all 135 patients, 57.8% (78/135) patients achieved MRD negativity (MRD(-)) after treatment. In 105 patients who achieved VGPR and thus included in this study, the MRD(-) rate was 72.4% (76/105) , with a median interval of 3 months from starting treatment to achievement of MRD(-) status. ②The 2-year PFS rate of patients with MRD(-) status was significantly higher than that of MRD(+) status (62.2% vs 41.3%, P=0.001) , while MRD persistence (MRD(+)) was an independent factor for poor prognosis (multivariate analysis for PFS: P=0.044, HR=3.039, 95%CI 1.029-8.974) . ③Loss of MRD(-) status (i.e., MRD reappearance) showed inferior outcomes compared with MRD sustained negative ones, the PFS was 18 months versus not reach (P<0.001) and the OS was not reach for both (P=0.002) . ④The 2-year PFS and OS rates of patients with duration of MRD(-)status≥12 months were significantly higher than those of the control group (PFS: 77.7% vs 36.7%, P<0.001; OS: 96.4% vs 57.9%, P<0.001 respectively) . Duration of MRD(-) status was associated with a marked reduction in risk of relapse or death (univariate analysis for PFS: P<0.001, HR=0.865, 95%CI 0.815-0.918; for OS: P=0.001, HR=0.850, 95%CI 0.741-0.915 respectively) . ⑤Moreover, even in patients carrying high-risk cytogenetic abnormalities (CA) or ineligible for ASCT, MRD negativity remained its prognostic value to predict PFS (high-risk CA medianPFS: not reach vs 19 months, P=0.006; ineligible for ASCT medianPFS: not reach vs 25 months, P=0.052 respectively) . ⑥Last, treatment with the bortezomib-based regimens contributed to prolonged MRD(-) duration (median MRD(-) duratio: 25 months vs 10 months, P=0.034) . Conclusion: Our findings supported MRD(+) status as an independent poor prognostic factor in MM patients, which implicated that duration of MRD(-) status also played a significant role in evaluation of prognosis, while loss of MRD(-)status might serve as an early biomarker for relapse. Therefore, monitoring of MRD kinetics might more precisely predict prognosis, as well as guide treatment decision, especially for when to start retreatment in relapsed patients.
Collapse
Affiliation(s)
- P Y Yang
- Department of Hematology, the First Hospital of Jilin University, Changchun 130021, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Abstract
Bilge water from ships is regarded as a major pollutant in the marine environment. Bilge water exists in a stable oil-in-water (O/W) emulsion form. However, little is known about the O/W liquid-liquid (l-l) interface. Traditional bulk characterization approaches are not capable of capturing the chemical changes at the O/W l-l interface. Although surfactants are deemed essential in droplet formation, their roles in bilge water stabilization have not been fully revealed. We have utilized novel in situ chemical imaging tools including in situ scanning electron microscopy (SEM) and in situ time-of-flight secondary ion mass spectrometry (ToF-SIMS) to study the evolving O/W interface using a NAVY bilge model for the first time. The droplet size distribution (DSD) does not change significantly without the addition of X-100 surfactants under static or rocking conditions. Both the oil components and the water clusters are shown to evolve over time at the O/W droplet interface by in situ liquid SIMS imaging. Of particular interest to droplet stabilization, the contribution of surfactants to the aged bilge droplets becomes more significant as the droplet size increases. The higher mass surfactant component does not appear on the droplet surface immediately while many lower mass surfactants are solvated inside the droplet. We have provided the first three-dimensional images of the evolving O/W interface and demonstrated that in situ surface chemical mapping is powerful enough to reveal the complex and dynamic l-l interface in the liquid state. Our observational insights suggest that surfactants are important in mediating droplet growth and facilitating effective separation of bilge water emulsion.
Collapse
Affiliation(s)
- Yanjie Shen
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Jenn Yao
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| | - Zihua Zhu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
| |
Collapse
|
32
|
Barnett JM, Yu XY, Suffield SR, Recknagle KP. Modeling filtered building effluent stack sampling points for qualification criteria. Progress in Nuclear Energy 2020. [DOI: 10.1016/j.pnucene.2020.103338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
33
|
Yu J, Zhou Y, Engelhard M, Zhang Y, Son J, Liu S, Zhu Z, Yu XY. In situ molecular imaging of adsorbed protein films in water indicating hydrophobicity and hydrophilicity. Sci Rep 2020; 10:3695. [PMID: 32111945 PMCID: PMC7048838 DOI: 10.1038/s41598-020-60428-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 02/03/2020] [Indexed: 01/21/2023] Open
Abstract
In situ molecular imaging of protein films adsorbed on a solid surface in water was realized by using a vacuum compatible microfluidic interface and time-of-flight secondary ion mass spectrometry (ToF-SIMS). Amino acid fragments from such hydrated protein films are observed and identified in the positive ion mode and the results are in agreement with reported works on dry protein films. Moreover, water clusters from the hydrated protein films have been observed and identified in both the positive and negative ion mode for a series protein films. Thus, the detailed composition of amino acids and water molecules in the hydrated protein films can be characterized, and the protein water microstructures can be revealed by the distinct three-dimensional spatial distribution reconstructed from in situ liquid ToF-SIMS molecular imaging. Furthermore, spectral principal component analysis of amino acid fragment peaks and water cluster peaks provides unique insights into the water cluster distribution, hydrophilicity, and hydrophobicity of hydrated adsorbed protein films in water.
Collapse
Affiliation(s)
- Jiachao Yu
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210096, China
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
- Department of Chemistry, School of Science, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yufan Zhou
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Mark Engelhard
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Yuchen Zhang
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Songqin Liu
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210096, China.
| | - Zihua Zhu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
| |
Collapse
|
34
|
Sabale S, Barpaga D, Yao J, Kovarik L, Zhu Z, Chatterjee S, McGrail BP, Motkuri RK, Yu XY. Understanding Time Dependence on Zinc Metal-Organic Framework Growth Using in Situ Liquid Secondary Ion Mass Spectrometry. ACS Appl Mater Interfaces 2020; 12:5090-5098. [PMID: 31891475 DOI: 10.1021/acsami.9b19991] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The abundance of novel metal-organic framework (MOF) materials continues to increase as more applications are discovered for these highly porous, well-ordered crystalline structures. The simplicity of constituents allows for the design of new MOFs with virtue of functionality and pore topology toward target adsorbates. However, the fundamental understanding of how these frameworks evolve during nucleation and growth is mostly limited to speculation from simulation studies. In this effort, we utilize a unique vacuum compatible system for analysis at the liquid vacuum interface (SALVI) microfluidic interface to analyze the formation and evolution of the benchmark MOF-74 framework using time-of-flight secondary ion mass spectrometry (ToF-SIMS). Principal component analysis of the SIMS mass spectra, together with ex situ electron microscopy, powder X-ray diffractometry, and porosimetry, provides new insights into the structural growth, metal-oxide cluster formation, and aging process of Zn-MOF-74. Samples collected over a range of synthesis times and analyzed closely with in situ ToF-SIMS, transmission electron microscopy, and gas adsorption studies verify the developing pore structure during the aging process.
Collapse
Affiliation(s)
- Sandip Sabale
- Energy and Environment Directorate , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
- Department of Chemistry , Jaysingpur College, Jaysingpur (Shivaji University) , Jaysingpur , 416101 Maharashtra , India
| | - Dushyant Barpaga
- Energy and Environment Directorate , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| | - Jennifer Yao
- Energy and Environment Directorate , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| | - Libor Kovarik
- Environmental Molecular Science Laboratory (EMSL) , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| | - Zihua Zhu
- Environmental Molecular Science Laboratory (EMSL) , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| | - Sayandev Chatterjee
- Energy and Environment Directorate , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| | - B Peter McGrail
- Energy and Environment Directorate , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| | - Radha Kishan Motkuri
- Energy and Environment Directorate , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| | - Xiao-Ying Yu
- Energy and Environment Directorate , Pacific Northwest National Laboratory (PNNL) , Richland , Washington 99354 , United States
| |
Collapse
|
35
|
Liu W, Huang L, Komorek R, Handakumbura PP, Zhou Y, Hu D, Engelhard MH, Jiang H, Yu XY, Jansson C, Zhu Z. Correlative surface imaging reveals chemical signatures for bacterial hotspots on plant roots. Analyst 2020; 145:393-401. [DOI: 10.1039/c9an01954e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A universal sample holder allows correlative imaging analysis of plant roots to reveal chemical signatures for bacterial hotspots.
Collapse
|
36
|
Li SS, Wu J, Yu XY, Luo SM, Wang JZ, Luo L, Zheng XS, Han XN, Li GY, Chen YJ, Wang CT, Huang L, Zeng QJ, Wu XW, Ren JA. [A multicenter cross-sectional study on chronic critical illness and surgery-related chronic critical illness in China]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:1027-1033. [PMID: 31770833 DOI: 10.3760/cma.j.issn.1671-0274.2019.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the prevalence, diagnosis and treatment of chronic critical illness (CCI) in China. Methods: The clinical data of 472 adult patients admitted to ICU in 53 hospitals, including basic information, disease-related data, nutrition program, etc., were collected on May 10, 2019, by means of multi-center cross-sectional study. If surgical intervention was needed or the occurrence of the disease was directly related to the surgery, ICU patients were regarded as surgical ICU cases (n=211). In this study, the diagnostic criteria for CCI were: (1) admission to ICU >14 days;(2) combined with persistent organ dysfunction. The prevalence,distribution and treatment of CCI and surgery-related CCI were recorded and analyzed. The Mann-Whitney U test, chi-square test or Fisher exact test were used for comparative analysis. Results: Among the 472 ICU patients from 53 hospitals, 326 were male (69.1%) and 146 were female (30.9%). The prevalence of CCI was 30.7% (145/472). Among 211 surgery-related ICU patients, 57 developed CCI with a prevalence of 27.0%. As compared to non-CCI patients, higher APACHE II score [median (IQR) 13.5 (10.0, 18.3) vs. 11.0 (7.0, 16.0), U=2970.000, P=0.007], higher Charlson comorbidity index [median (IQR) 4.0 (2.0, 7.0) vs. 3.0 (1.0, 5.0), U= 3570.000, P=0.036] and higher ratio of breath dysfunction [68.4% (39/57) vs. 48.1% (74/154), χ(2)=6.939, P=0.008] and renal dysfunction [42.1% (24/57) vs. 18.2% (28/154), χ(2)=12.821, P<0.001] were found in surgery-related CCI patients. While SOFA score, Glasgow coma score and other visceral function were not significantly different between surgery-related CCI and non-CCI patients (all P>0.05). NUTRIC score showed that surgery-related CCI patients had higher nutritional risk [43.9% (25/57) vs. 26.6%(41/154), U=5.750, P=0.016] and higher ratio of mechanical ventilation [66.7% (38/57) vs. 52.3% (79/154), χ(2)=3.977, P=0.046] than non-CCI patients. On the survey day, the daily caloric requirements of 50.2% (106/211) of surgery-related ICU patients were calculated according to the standard adult caloric intake index (104.6 to 125.5 kJ·kg(-1)·d(-1), 1 kJ=0.239 kcal), and the daily caloric requirements of 46.4% (98/211) of patients were calculated by physicians according to the severity of the patient's condition. 60.2% (127/211) of nutritional support therapy was enteral nutrition (including a combination of enteral and parenteral nutrition), while the remaining patients received parenteral nutrition (24.6%, 52/211), simple glucose infusion (9.0%, 19/211), or oral diet (6.2%, 13/211). The target calorie of CCI group was 104.6 (87.9, 125.5) kJ·kg(-1)·d(-1), and the actual calorie intake accounted for 0.98 (0.80, 1.00) of the target calory. In the non-CCI group, the target calorie was 104.6 (87.9, 125.5) kJ·kg(-1)·d(-1), and the actual calorie consumed accounted for 0.91 (0.66, 1.00) of the target calorie. There was no statistically significant difference between two groups (P=0.248, P=0.150). Conclusion: The prevalence of CCI and surgery-related CCI in ICU is high, along with severe complications, respiratory and renal dysfunction and mechanical ventilation. Surgical patients admitted to ICU are at high nutritional risk, and active and correct nutritional support is essential for such patients.
Collapse
Affiliation(s)
- S S Li
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - J Wu
- Department of General Surgery, The Affiliated BenQ Hospital, Nanjing Medical University, Nanjing 210019, China
| | - X Y Yu
- Department of Critical Care Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi 830054, China
| | - S M Luo
- Department of Emergency Trauma Surgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
| | - J Z Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Gannan Medical College, Jiangxi Ganzhou 341000, China
| | - L Luo
- Department of Critical Care Medicine, Wuxi Second People's Hospital, Jiangsu Wuxi 214002, China
| | - X S Zheng
- Department of General Surgery, Nanyang Central Hospital, Henan Nanyang 473000, China
| | - X N Han
- Department of Critical Care Medicine, Affiliated Hospital, Qingdao University, Shandong Qingdao 266555, China
| | - G Y Li
- Department of General Surgery, Hunan Provincial People's Hospital, Changsha 410000, China
| | - Y J Chen
- Department of Critical Care Medicine, Jinjiang Hospital of Traditional Chinese Medicine, Fujian Quanzhou 362200, China
| | - C T Wang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated of Shandong First Medical University, Jinan 250021, China
| | - L Huang
- Department of Critical Care Medicine, Yantai Mountain Hospital, Shandong Yantai 264000, China
| | - Q J Zeng
- Department of Gastrointestinal Surgery, The First People's Hospital of Yueyang City, Hunan Yueyang 414000, China
| | - X W Wu
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - J A Ren
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| |
Collapse
|
37
|
Son J, Shen Y, Yao J, Paynter D, Yu XY. Surface evolution of synthetic bilgewater emulsion. Chemosphere 2019; 236:124345. [PMID: 31545184 DOI: 10.1016/j.chemosphere.2019.124345] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 07/02/2019] [Accepted: 07/09/2019] [Indexed: 06/10/2023]
Abstract
Bilgewater is a regulated shipboard produced waste stream that often contains oil-in-water emulsion. Fundamental knowledge of emulsion surface changes is required for improved wastewater treatment; however, limited information is currently available. We have reported the first surface characterization of synthetic bilgewater emulsions using time-of-flight secondary ion mass spectrometry (ToF-SIMS) coupled with optical microscopy. A Navy standard bilgewater solution consisting of a hydrocarbon and detergent mixture is used as the synthetic bilgewater emulsion model. Both fresh and aged emulsion samples are analyzed to determine their droplet size distributions (DSDs) and surface chemical composition. Our results show that fresh emulsions are largely mono-modal with hydrocarbon fragments as the main surface composition. Aged emulsions are also mono-modal with slightly larger size. Both SIMS spectral comparison and Principal Component Analysis (PCA) show that some surfactant components appear on the fresh emulsion surface while larger molecular weight components appear at the aged bilge droplet surface. Our results indicate that the oil-water interface evolves after emulsion droplet formation. More importantly, surface evolution not only changes the bilgewater DSD, but also alters the surface chemical composition and reactivity.
Collapse
Affiliation(s)
- Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, United States
| | - Yanjie Shen
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, United States
| | - Jenn Yao
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, United States
| | - Danielle Paynter
- Naval Surface Warfare Center, Carderock Division, West Bethesda, MD, 20817, United States
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, United States.
| |
Collapse
|
38
|
Qu C, Chen W, Hu X, Cai P, Chen C, Yu XY, Huang Q. Heavy metal behaviour at mineral-organo interfaces: Mechanisms, modelling and influence factors. Environ Int 2019; 131:104995. [PMID: 31326822 DOI: 10.1016/j.envint.2019.104995] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/16/2019] [Accepted: 07/04/2019] [Indexed: 05/24/2023]
Abstract
The mineral-organo composites control the speciation, mobility and bioavailability of heavy metals in soils and sediments by surface adsorption and precipitation. The dynamic changes of soil mineral, organic matter and their associations under redox, aging and microbial activities further complicate the fate of heavy metals. Over the past decades, the wide application of advanced instrumental techniques and modelling has largely extended our understanding on heavy metal behavior within mineral-organo assemblages. In this review, we provide a comprehensive summary of recent progress on heavy metal immobilization by mineral-humic and mineral-microbial composites, with a special focus on the interfacial reaction mechanisms of heavy metal adsorption. The impacts of redox and aging conditions on heavy metal speciations and associations with mineral-organo complexes are discussed. The modelling of heavy metals adsorption and desorption onto synthetic mineral-organo composites and natural soils and sediments are also critically reviewed. Future challenges and prospects in the mineral-organo interface are outlined. More in-depth investigations are warranted, especially on the function and contribution of microorganisms in the immobilization of heavy metals at the complex mineral-organo interface. It has become imperative to use the state-of-the-art methodologies to characterize the interface and develop in situ analytical techniques in future studies.
Collapse
Affiliation(s)
- Chenchen Qu
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenli Chen
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiping Hu
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng Cai
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China
| | - Chengrong Chen
- School of Environment and Sciences, Griffith University, Brisbane, QLD 4111, Australia
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Qiaoyun Huang
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
39
|
Yu XY, Tan SL, Tang WY, Chen JM, Wang M, Liu RJ, Xia WT. Application of PRVEP Waveform Amplitude Ratio to Evaluate Visual Acuity and Its Forensic Significance. Fa Yi Xue Za Zhi 2019; 35:402-405. [PMID: 31532146 DOI: 10.12116/j.issn.1004-5619.2019.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To research the correlation between the visual acuity ratio and pattern reversal visual evoked potential (PRVEP) P100 waveform amplitude ratio of both eyes. Methods Forty-seven volunteers were selected, and the visual chart visual acuity of both eyes was measured. The visual acuity ratio of the eye with poor vision to the eye with better vision was calculated by five grade notation method. The amplitudes of P100 waveforms of both eyes were recorded respectively by using black-and-white checkerboard PRVEP and chosing 1°, 15' stimulating visual angle, and the ratio of amplitudes between the two eyes was also calculated. SPSS 20.0 software was used to analyze the correlation between the visual acuity ratio and the ratio of P100 waveform amplitudes between the two eyes. Return test and linear regression analysis with the binocular ratio of P100 waveform amplitudes as the independent variable (x) and the binocular visual acuity ratio as the dependent variable (y) were made. Results There was a positive correlation between the binocular visual acuity ratio and the ratio of P100 waveform amplitudes under 15' stimulating visual angle (Pearson correlation coefficient was 0.62, P=0.000). The fitting linear regression equation was y=0.090 x+0.846 (F=20.954, P=0.000). There was no significant correlation between the binocular ratio of visual acuity and the binocular ratio of P100 waveform amplitudes under 1° stimulating visual angle (P>0.05). Results of return test showed that there was no statistical significance in the difference between visual acuity estimated by equation and actual detected visual acuity. Conclusion In forensic appraisal of monocular injury, fitting linear regression equation of binocular visual acuity ratio and the binocular ratio of P100 waveform amplitudes under 15' stimulating visual angle, is helpful for visual acuity level estimation of the injured eye to some extent.
Collapse
Affiliation(s)
- X Y Yu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - S L Tan
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - W Y Tang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,School of Basic Medical Science, Jiamusi University, Kiamusze 154000, Heilongjiang Province, China
| | - J M Chen
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - R J Liu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - W T Xia
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| |
Collapse
|
40
|
Zhang F, Yu X, Sui X, Chen J, Zhu Z, Yu XY. Evolution of aqSOA from the Air-Liquid Interfacial Photochemistry of Glyoxal and Hydroxyl Radicals. Environ Sci Technol 2019; 53:10236-10245. [PMID: 31361474 DOI: 10.1021/acs.est.9b03642] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The effect of photochemical reaction time on glyoxal and hydrogen peroxide at the air-liquid (a-l) interface is investigated using in situ time-of-flight secondary ion mass spectrometry (ToF-SIMS) enabled by a system for analysis at the liquid vacuum interface (SALVI) microreactor. Carboxylic acids are formed mainly by reaction with hydroxyl radicals in the initial reactions. Oligomers, cluster ions, and water clusters formed due to longer photochemistry. Our results provide direct molecular evidence that water clusters are associated with proton transfer and the formation of oligomers and cluster ions at the a-l interface. The oligomer formation is facilitated by water cluster and cluster ion formation over time. Formation of higher m/z oligomers and cluster ions indicates the possibility of highly oxygenated organic components formation at the a-l interface. Furthermore, new chemical reaction pathways, such as surface organic cluster, hydration shell, and water cluster formation, are proposed based on SIMS spectral observations, and the existing understanding of glyoxal photochemistry is expanded. Our in situ findings verify that the a-l interfacial reactions are important pathways for aqueous secondary organic aerosol (aqSOA) formation.
Collapse
Affiliation(s)
- Fei Zhang
- Department of Environmental Science & Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3) , Fudan University , Shanghai , 200433 , China
- Energy and Environment Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Xiaofei Yu
- Environmental and Molecular Science Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Xiao Sui
- Energy and Environment Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Jianmin Chen
- Department of Environmental Science & Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3) , Fudan University , Shanghai , 200433 , China
- Institute of Atmospheric Sciences , Fudan University , Shanghai , 200433 , China
| | - Zihua Zhu
- Environmental and Molecular Science Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Xiao-Ying Yu
- Energy and Environment Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| |
Collapse
|
41
|
Yao J, Guzman A, Zhu Z, Yu XY. Imaging Corrosion at the Metal-Paint Interface Using Time-of-Flight Secondary Ion Mass Spectrometry. J Vis Exp 2019. [PMID: 31107461 DOI: 10.3791/59523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Corrosion developed at the paint and aluminum (Al) metal-paint interface of an aluminum alloy is analyzed using time-of-flight secondary ion mass spectrometry (ToF-SIMS), illustrating that SIMS is a suitable technique to study the chemical distribution at a metal-paint interface. The painted Al alloy coupons are immersed in a salt solution or exposed to air only. SIMS provides chemical mapping and 2D molecular imaging of the interface, allowing direct visualization of the morphology of the corrosion products formed at the metal-paint interface and mapping of the chemical after corrosion occurs. The experimental procedure of this method is presented to provide technical details to facilitate similar research and highlight pitfalls that may be encountered during such experiments.
Collapse
Affiliation(s)
- Jennifer Yao
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory
| | - Anthony Guzman
- Energy and Environment Directorate, Pacific Northwest National Laboratory
| | - Zihua Zhu
- Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory
| | - Xiao-Ying Yu
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory;
| |
Collapse
|
42
|
Zhang HS, Zhang ZG, Du GY, Sun HL, Liu HY, Zhou Z, Gou XM, Wu XH, Yu XY, Huang YH. Nrf2 promotes breast cancer cell migration via up-regulation of G6PD/HIF-1α/Notch1 axis. J Cell Mol Med 2019; 23:3451-3463. [PMID: 30809937 PMCID: PMC6484400 DOI: 10.1111/jcmm.14241] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 12/07/2018] [Accepted: 02/01/2019] [Indexed: 12/26/2022] Open
Abstract
Abnormal metabolism of tumour cells is closely related to the occurrence and development of breast cancer, during which the expression of NF‐E2‐related factor 2 (Nrf2) is of great significance. Metastatic breast cancer is one of the most common causes of cancer death worldwide; however, the molecular mechanism underlying breast cancer metastasis remains unknown. In this study, we found that the overexpression of Nrf2 promoted proliferation and migration of breast cancers cells. Inhibition of Nrf2 and overexpression of Kelch‐like ECH‐associated protein 1 (Keap1) reduced the expression of glucose‐6‐phosphate dehydrogenase (G6PD) and transketolase of pentose phosphate pathway, and overexpression of Nrf2 and knockdown of Keap1 had opposite effects. Our results further showed that the overexpression of Nrf2 promoted the expression of G6PD and Hypoxia‐inducing factor 1α (HIF‐1α) in MCF‐7 and MDA‐MB‐231 cells. Overexpression of Nrf2 up‐regulated the expression of Notch1 via G6PD/HIF‐1α pathway. Notch signalling pathway affected the proliferation of breast cancer by affecting its downstream gene HES‐1, and regulated the migration of breast cancer cells by affecting the expression of EMT pathway. The results suggest that Nrf2 is a potential molecular target for the treatment of breast cancer and targeting Notch1 signalling pathway may provide a promising strategy for the treatment of Nrf2‐driven breast cancer metastasis.
Collapse
Affiliation(s)
- Hong-Sheng Zhang
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Zhong-Guo Zhang
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Guang-Yuan Du
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Hong-Liang Sun
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Hui-Yun Liu
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Zhen Zhou
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Xiao-Meng Gou
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Xi-Hao Wu
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Xiao-Ying Yu
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| | - Ying-Hui Huang
- College of Life Science & Bioengineering, Beijing University of Technology, Beijing, China
| |
Collapse
|
43
|
Abstract
Shewanella oneidensisMR-1 wild-type and a hyper-adhesive mutant CP2-1-S1 model organisms and Cr(vi) are used to study biofilm and toxic chemical interactions.
Collapse
Affiliation(s)
- Yuanzhao Ding
- Earth and Biological Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE)
| | - Yufan Zhou
- Environmental and Molecular Science Laboratory
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Juan Yao
- Earth and Biological Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Yijia Xiong
- College of Osteopathic Medicine of the Pacific-Northwest
- Western University of Health Sciences
- Oregon 97355
- USA
| | - Zihua Zhu
- Environmental and Molecular Science Laboratory
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Xiao-Ying Yu
- Earth and Biological Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| |
Collapse
|
44
|
Zheng J, Yu XY, Nguyen MT, Lao D, Zhu Y, Wang F, Heldebrant DJ. Assessing the impacts of dynamic soft-templates innate to switchable ionic liquids on nanoparticulate green rust crystalline structures. Chem Commun (Camb) 2019; 55:11239-11242. [DOI: 10.1039/c9cc04581c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This experimental and theoretical study investigates how dynamic solvation environments in switchable ionic liquids regulate the composition of nanoparticulate green rust.
Collapse
Affiliation(s)
- Jian Zheng
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Xiao-Ying Yu
- Energy and Environment Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Manh-Thuong Nguyen
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - David Lao
- Energy and Environment Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Yifeng Zhu
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Feng Wang
- Sustainable Energy Technologies Department
- Brookhaven National Laboratory
- Upton
- USA
| | - David J. Heldebrant
- Energy and Environment Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| |
Collapse
|
45
|
Zhuo PP, Wang MW, Yu XY, Wan L, Tan SL, Chen JM, Xia WT. Assessment of the Original Height of L 1~2 after Vertebral Compression Fracture. Fa Yi Xue Za Zhi 2018; 34:359-362. [PMID: 30465398 DOI: 10.12116/j.issn.1004-5619.2018.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To explore the assessment method of original height of L1-2 after vertebral compression fracture and its application value in forensic clinical practice. METHODS A total of 154 normal thoracic and lumbar X-ray films were collected, and 140 cases were used as experimental group while 14 cases as validation group. The heights of anterior (Ha) and posterior (Hp) vertebral body of T₁₂-L₃ vertebrae in each X-ray image were measured. In the experimental group, the correlation analysis between HaL₁ and HaT₁₂, HpT₁₂, HpL₁, HaL₂ and HpL₂ was carried out, and regression equation was established via fitting. The correlation analysis between HaL₂ and HaL₁, HpL₁, HpL₂, HaL₃, HpL₃ was performed, and the regression equation was also established via fitting. The difference between the predicted and measured values of HaL₁ and HaL₂ in validation group was compared. RESULTS In the 140 normal subjects, HaL₁ (y₁) was well correlated with HaT₁₂ (x₁) and HaL₂(x₂), and the multiple linear regression equation was y₁=2.545+0.423 x₁+0.486 x₂ (determining coefficient R²=0.712, P<0.05; F=169.206, P<0.05). There was no significant difference between the predicted and actual measured values of HaL₁ in the validation group ( P>0.05). HaL₂ (y₂) was well correlated with HaL₁ (x₃) and HaL₃ (x₄), and the multiple linear regression equation was y₂=4.354+0.530 x₃+0.349 x₄ (determining coefficient R²=0.689, P<0.05; F=151.575, P<0.05). There was no significant difference between the predicted and actual measured values of HaL₂ in the validation group ( P>0.05). CONCLUSIONS It is more appropriate to evaluate the original height of L₁ or L₂ single vertebrae by comparing with the height of the anterior edge of the upper and lower adjacent vertebral bodies.
Collapse
Affiliation(s)
- P P Zhuo
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, China.,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - X Y Yu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - L Wan
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - S L Tan
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215006, China
| | - J M Chen
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215006, China
| | - W T Xia
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215006, China
| |
Collapse
|
46
|
Komorek R, Xu B, Yao J, Ablikim U, Troy TP, Kostko O, Ahmed M, Yu XY. Enabling liquid vapor analysis using synchrotron VUV single photon ionization mass spectrometry with a microfluidic interface. Rev Sci Instrum 2018; 89:115105. [PMID: 30501361 DOI: 10.1063/1.5048315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/19/2018] [Indexed: 06/09/2023]
Abstract
Vacuum ultraviolet (VUV) single photon ionization mass spectrometry (SPI-MS) is a vacuum-based technique typically used for the analysis of gas phase and solid samples, but not for liquids due to the challenge in introducing volatile liquids in a vacuum. Here we present the first demonstration of in situ liquid analysis by integrating the System for Analysis at the Liquid Vacuum Interface (SALVI) microfluidic reactor into VUV SPI-MS. Four representative volatile organic compound (VOC) solutions were used to illustrate the feasibility of liquid analysis. Our results show the accurate mass identification of the VOC molecules and the reliable determination of appearance energy that is consistent with ionization energy for gaseous species in the literature as reported. This work validates that the vacuum-compatible SALVI microfluidic interface can be utilized at the synchrotron beamline and enable the in situ study of gas-phase molecules evaporating off the surface of a liquid, which holds importance in the study of condensed matter chemistry.
Collapse
Affiliation(s)
- R Komorek
- Atmospheric Sciences and Global Change Division, PNNL, Richland, Washington 99354, USA
| | - B Xu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Yao
- Atmospheric Sciences and Global Change Division, PNNL, Richland, Washington 99354, USA
| | - U Ablikim
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T P Troy
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - O Kostko
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Ahmed
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - X Y Yu
- Atmospheric Sciences and Global Change Division, PNNL, Richland, Washington 99354, USA
| |
Collapse
|
47
|
Zhou Z, Zhang HS, Zhang ZG, Sun HL, Liu HY, Gou XM, Yu XY, Huang YH. Loss of HACE1 promotes colorectal cancer cell migration via upregulation of YAP1. J Cell Physiol 2018; 234:9663-9672. [PMID: 30362561 DOI: 10.1002/jcp.27653] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 10/02/2018] [Indexed: 12/12/2022]
Abstract
Colorectal cancer (CRC) is the third-leading cause of cancer mortality worldwide. HACE1 function as a tumor-suppressor gene and is downregulated in several kinds of cancers. However, the distribution and clinical significance of HACE1 in CRC is still not clarified. In this study, we found that the HACE1 expression is greatly downregulated in CRC tissues and cell lines. Moreover, the HACE1 expression was significantly associated with inhibition of CRC cell proliferation, metastasis, and invasion. HACE1 inhibited epithelial-mesenchymal transition in CRC cells. Furthermore, we found that HACE1 altered the protein expression of the Hippo pathway by downregulation of YAP1. HACE1 suppresses the invasive ability of CRC cells by negatively regulating the YAP1 pathway. Our data indicates that HACE1 directly targets YAP1 and induces downregulation of YAP1, thereby increasing the activity of the Hippo pathway. In summary, these findings demonstrated that HACE1-YAP1 axis had an important part in the CRC development and progression.
Collapse
Affiliation(s)
- Zhen Zhou
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| | - Hong-Sheng Zhang
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| | - Zhong-Guo Zhang
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| | - Hong-Liang Sun
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| | - Hui-Yun Liu
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| | - Xiao-Meng Gou
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| | - Xiao-Ying Yu
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| | - Ying-Hui Huang
- Department of Biotechnology, College of Life Science & Bioengineering, Beijing University of Technology, Chaoyang, Beijing, China
| |
Collapse
|
48
|
Yu XY, Yao J, Lao DB, Heldebrant DJ, Zhu Z, Malhotra D, Nguyen MT, Glezakou VA, Rousseau R. Mesoscopic Structure Facilitates Rapid CO 2 Transport and Reactivity in CO 2 Capture Solvents. J Phys Chem Lett 2018; 9:5765-5771. [PMID: 30205679 DOI: 10.1021/acs.jpclett.8b02231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Mass transfer coefficients of CO2 are anomalously high in water-lean solvents as compared to aqueous amines. Such phenomena are intrinsic to the molecular and nanoscale structure of concentrated organic CO2 capture solvents. To decipher the connections, we performed in situ liquid time-of-flight secondary ionization mass spectroscopy on a representative water-lean solvent, 1-((1,3-Dimethylimidazolidin-2-ylidene)amino)propan-2-ol (IPADM-2-BOL). Two-dimensional (2D) and three-dimensional (3D) chemical mapping of the solvent revealed that IPADM-2-BOL exhibited a heterogeneous molecular structure with regions of CO2-free solvent coexisting with clusters of zwitterionic carbonate ions. Chemical mapping were consistent with molecular dynamic simulation results, indicating CO2 diffusing through pockets and channels of unreacted solvent. The observed mesoscopic structure promotes and enhances the diffusion and reactivity of CO2, likely prevalent in other water-lean solvents. This finding suggests that if the size, shape and orientation of the domains can be controlled, more efficient CO2 capture solvents could be developed to enhance mass-transfer and uptake kinetics.
Collapse
Affiliation(s)
- Xiao-Ying Yu
- Earth and Biological Sciences Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Juan Yao
- Earth and Biological Sciences Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - David B Lao
- Energy and Environment Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - David J Heldebrant
- Energy and Environment Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Zihua Zhu
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Deepika Malhotra
- Energy and Environment Directorate , Pacific Northwest National Laboratory , Richland , Washington 99354 , United States
| | - Manh-Thuong Nguyen
- Physical and Computational Sciences Directorate , Pacific Northwest National Laboratory , Richland , Washington 99352 , United States
| | - Vassiliki-Alexandra Glezakou
- Physical and Computational Sciences Directorate , Pacific Northwest National Laboratory , Richland , Washington 99352 , United States
| | - Roger Rousseau
- Physical and Computational Sciences Directorate , Pacific Northwest National Laboratory , Richland , Washington 99352 , United States
| |
Collapse
|
49
|
Artyushkova K, Mullins DR, Gregoratti L, Yu XY. Foreword to special section on “Near Ambient and Synchrotron Surface Analysis (NAXPS)”. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- K. Artyushkova
- University of New Mexico; Chemical and Biological Engineering; Albuquerque NM USA
| | - David R. Mullins
- Chemical Sciences; Oak Ridge National Laboratory; Oak Ridge TN USA
| | - Luca Gregoratti
- ESCAmicroscopy beamline; Synchrotron Elettra; Basovizza TS Italy
| | - Xiao-Ying Yu
- Atmospheric Sciences and Global Climate Change Division; Pacific Northwest National Laboratory; Richland WA USA
| |
Collapse
|
50
|
Zheng J, Zhang W, Wang F, Yu XY. Enabling liquid solvent structure analysis using hard x-ray absorption spectroscopy with a transferrable microfluidic reactor. J Phys Condens Matter 2018; 30:18LT01. [PMID: 29561738 DOI: 10.1088/1361-648x/aab87f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this paper, a vacuum compatible microfluidic device, system for analysis at the liquid vacuum interface, is integrated to hard x-ray absorption spectroscopy to obtain the local structure of K3[Fe(CN)6] in aqueous solutions with three concentrations of 0.5 M, 0.05 M, and 0.005 M. The solutions were sealed in a microchannel 500 µm wide and 300 µm deep in a portable microfluidic device. The Fe K-edge x-ray absorption spectra indicate a presence of Fe(III) in the complex in water, with an octahedral geometry coordinated with 6 C atoms in the first shell with a distance of ~1.92 Å and 6 N atoms in the second shell with a distance of ~3.10 Å. Varying the concentration has no observable influence on the structure of K3[Fe(CN)6]. Our results demonstrate the feasibility of using microfluidic based liquid cells in large synchrotron facilities. Using portable microfludic reactors provides a viable approach to enable multifaceted measurements of liquids in the future.
Collapse
Affiliation(s)
- Jian Zheng
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, United States of America
| | | | | | | |
Collapse
|