检索结果-南通市图书馆

Single-atom catalysts for the electrochemical reduction of carbon dioxide into hydrocarbons and oxygenates

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2024年第3期6卷 64-117页

作者： Karl Adrian Gandionco Juwon Kim Lieven Bekaert Annick Hubin Jongwoo lim Department of Chemistry Seoul National UniversitySeoulRepublic of Korea Research Group Electrochemical and Surface Engineering(SURF) Department of Materials and ChemistryVrije Universiteit BrusselBrusselsBelgium

The electrochemical reduction of carbon dioxide offers a sound and economically viable technology for the electrification and decarbonization of the chemical and fuel *** this technology,an electrocatalytic material and renewable energy-generated electricity drive the conversion of carbon dioxide into high-value chemicals and carbon-neutral *** the past few years,single-atom catalysts have been intensively studied as they could provide near-unity atom utilization and unique catalytic ***-atom catalysts have become one of the state-of-the-art catalyst materials for the electrochemical reduction of carbon dioxide into carbon ***,it remains a challenge for single-atom catalysts to facilitate the efficient conversion of carbon dioxide into products beyond carbon *** this review,we summarize and present important findings and critical insights from studies on the electrochemical carbon dioxide reduction reaction into hydrocarbons and oxygenates using single-atom *** is hoped that this review gives a thorough recapitulation and analysis of the science behind the catalysis of carbon dioxide into more reduced products through singleatom catalysts so that it can be a guide for future research and development on catalysts with industry-ready performance for the electrochemical reduction of carbon dioxide into high-value chemicals and carbon-neutral fuels.

关键词： electrocatalysis electrochemical CO_(2)reduction hydrocarbons oxygenates single-atom catalysts

Laser‑Induced and MOF‑Derived Metal Oxide/Carbon Composite for Synergistically Improved Ethanol Sensing at Room temperature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第6期16卷 210-220页

作者： Hyeongtae lim Hyeokjin Kwon Hongki Kang Jae Eun Jang Hyuk‑Jun Kwon Department of Electrical Engineering and Computer Science DGISTDaegu 42988South Korea Convergence Research Advanced Centre for Olfaction DGISTDaegu 42988South Korea

Advancements in sensor technology have significantly enhanced atmospheric ***,metal oxide and carbon(MO_(x)/C)hybrids have gained attention for their exceptional sensitivity and room-temperature sensing ***,previous methods of synthesizing MO_(x)/C composites suffer from problems,including inhomogeneity,aggregation,and challenges in ***,we introduce a refined method that employs a metal–organic framework(MOF)as a precursor combined with direct laser *** inherent structure of MOFs ensures a uniform distribution of metal ions and organic linkers,yielding homogeneous MO_(x)/C *** laser processing facilitates precise micropatterning(<2μm,comparable to typical photolithography)of the MO_(x)/C *** optimized MOF-derived MO_(x)/C sensor rapidly detected ethanol gas even at room temperature(105 and 18 s for response and recovery,respectively),with a broad range of sensing performance from 170 to 3,400 ppm and a high response value of up to 3,500%.Additionally,this sensor exhibited enhanced stability and thermal resilience compared to previous MOF-based *** research opens up promising avenues for practical applications in MOF-derived sensing devices.

关键词： Metal-organic frameworks Metal oxide Carbon composite Laser Gas sensor

Advances in discovery of novel investigational agents for functional cure of chronic hepatitis B:A comprehensive review of phases II and III therapeutic agents

在线全文

学校读者我要写书评

暂无评论

World Journal of Hepatology 2024年第3期16卷 331-343页

作者： Robert Lam Joseph K lim Section of Digestive Diseases Yale University School of MedicineNew HavenCT 06520United States

Chronic hepatitis B virus(HBV)infection affects over 295 million people globally and an estimated 1.6 million people in the United *** is associated with significant morbidity and mortality due to cirrhosis,liver failure,and liver *** therapy with oral nucleos(t)ide analogues is associated with high rates of virologic suppression,which in turn has been associated with a decreased risk of liver ***,current antiviral regimens are limited by concerns with adverse effects,adherence,resistance,long-term treatment,and ongoing risk for liver *** investigational agents are currently in development and are targeted at achieving functional cure with sustained hepatitis B surface antigen(HBsAg)loss and suppression of HBV *** we review key evidence from phases II and III trials defining the efficacy and safety profiles for key investigational agents for functional cure of chronic hepatitis B,including core/capsid inhibitors,entry inhibitors,RNA interference(siRNA/ASO),HBsAg inhibitors,Toll-like receptor agonists,checkpoint inhibitors,and therapeutic vaccines.

关键词： Hepatitis B virus Treatment Clinical trials RNA interference Entry inhibitors Core inhibitors Immunomodulators

A converged ubiquitin-proteasome pathway for the degradation of TOC and TOM tail-anchored receptors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2024年第5期66卷 1007-1023页

作者： Meijing Yang Shuai Chen Shey-Li lim Lang Yang Jia Yi Zhong Koon Chuen Chan Zhizhu Zhao Kam-Bo Wong Junqi Wang Boon Leong lim School of Biological Sciences University of Hong KongPokfulam 999077Hong KongChina Department of Biology Southern University of Science and TechnologyShenzhen 518055China School of Biomedical Engineering Shenzhen UniversityShenzhen 518060China School of Life Sciences The Chinese Universityof Hong KongShatin 999077HongKongChina State Key Laboratory of Agrobiotechnology The Chinese University of Hong KongShatin 999077Hong KongChina HKU Shenzhen Institute of Research and Innovation Shenzhen 518052China

In plants,thousands of nucleus-encoded proteins translated in the cytosol are sorted to chloroplasts and mitochondria by binding to specific receptors of the TOC(translocon on the outer chloroplast membrane)and the TOM(translocon on the outer mitochondrial membrane)complexes for import into those *** degradation pathways for these receptors are ***,we discovered a converged ubiquitin-proteasome pathway for the degradation of Arabidopsis thaliana TOC and TOM tail-anchored *** receptors are ubiquitinated by E3 ligase(s)and pulled from the outer membranes by the AAA+adenosine triphosphatase CDC48,after which a previously uncharacterized cytosolic protein,transmembrane domain(TMD)-binding protein for tail-anchored outer membrane proteins(TTOP),binds to the exposed TMDs at the C termini of the receptors and CDC48,and delivers these complexes to the 26S proteasome.

关键词： 26S proteasome CDC48 SP1 TOC TOM ubiquitination

Flexible thermocouple using a thermoelectric graphene fiber with a seamless junction

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2024年第5期172卷 15-22页

作者： Seungwon Kim Soomook lim Myeong Hee Jeong Wonjoon Kim Seunghyun Baik Ji Won Suk School of Mechanical Engineering Sungkyunkwan UniversitySuwonGyeonggi-do 16419Republic of Korea Department of Smart Fab.Technology Sungkyunkwan UniversitySuwonGyeonggi-do 16419Republic of Korea SKKU Advanced Institute of Nanotechnology(SAINT) Sungkyunkwan UniversitySuwonGyeonggi-do 16419Republic of Korea

Temperature is an important physical variable that indicates the condition of the human body and artificial *** wearable applications require the development of temperature sensors with different form *** this study,a fiber-shaped thermoelectric temperature sensor is fabricated using a continuous graphene fiber whose two halves possess different reduction states.A seamless junction is formed by partially reducing a wet-spun graphene oxide fiber with hydroiodic acid(HI)solutions of different ***-half of the fiber is mildly reduced with 0.97 wt%HI,while the other half is highly reduced with 30.6 wt%*** different reduction states of the graphene composite fiber result in different Seebeck coefficients,allowing for the fabrication of a fiber-shaped graphene thermocou-ple without any laborious *** flexible graphene thermocouple exhibits high sensitivity with a thermopower of 12.5μV K^(-1)in the temperature range of room temperature to∼70℃.Furthermore,it exhibits high linearity with a correlation coefficient exceeding 0.995 and fast response with a time constant of 0.24 *** to its mechanical robustness and flexibility,the stand-alone graphene ther-mocouple can be knitted into a cotton fabric glove,which presents a fast response to environmental changes without any external power *** work offers a unique fabrication method for producing a high-performance,flexible thermocouple that features a seamless and clear junction without the use of additional *** alternative method eliminates the complicated assembly processes typically required for conventional thermocouples.

关键词： Graphene fiber Thermocouple Reduced graphene oxide Flexible temperature sensor Seebeck coefficient

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2024年第4期15卷 256-262页

作者： Jie Er Janice Soo Yuan Helen Zhang Gek Hsiang lim Fatimah Lateef Department of Emergency Medicine Singapore General HospitalSingapore 168753Singapore Health Services Research Unit Singapore General HospitalSingapore168753Singapore

BACKGROUND:This study aimed to review bicycle-related injuries during the COVID-19 pandemic to assist with reinforcement or implementation of new policies for injury ***:This is a retrospective descriptive analysis of injuries sustained during cycling for patients 18 years old and above who presented to Singapore General Hospital from January to June *** records were reviewed and *** analyses were used to summarize patient characteristics,and differences in characteristics subgrouped by triage acuity and discharge status were ***:The study included 272 patients with a mean age of 43 years and a male predominance(71.7%).Most presented without referrals(88.2%)and were not conveyed by ambulances(70.6%).Based on acuity category,there were 24(8.8%)Priority 1(P1)patients with 7 trauma activations,174(64.0%)and 74(27.2%)P2 and P3 patients *** most common injuries were fractures(34.2%),followed by superficial abrasion/contusion(29.4%)and laceration/wound(19.1%).Thirteen(4.8%)patients experienced head injury and 85 patients(31.3%)were documented to be wearing a *** majority occurred on the roads as traffic accidents(32.7%).Forty-two patients(15.4%)were admitted with a mean length of stay of 4.1 d and 17(6.3%)undergone surgical *** of 214(78.7%)discharged patients,no re-attendances or mortality were *** the subgroup analysis,higher acuity patients were generally older,with higher proportions of head injuries leading to ***:Our study highlights significant morbidities in bicycle-related *** is also a high proportion of fractures in the young healthy male *** prevention is paramount and we propose emphasizing helmet use and road user safety.

关键词： Cycling Injuries Emergency department

A plant growth chamber system equipped with aerosol generators for studying aerosol-vegetation interactions

在线全文

学校读者我要写书评

暂无评论

Particuology 2024年第2期85卷 122-132页

作者： Masao Gen Seiji Ikawa Masahiro Yamaguchi Fong Zyin lim Takeshi Izuta I.Wuled Lenggoro Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and TechnologyKoganeiTokyo184-8588Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku UniversitySendai980-8577Japan Faculty of Agriculture Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509Japan Graduate School of Fisheries and Environmental Sciences Nagasaki UniversityNagasaki852-8521Japan Institute of Agriculture Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509 Japan Department of Applied Physics and Chemical Engineering Tokyo University of Agriculture and TechnologyKoganeiTokyo184-8588Japan Institute of Global Innovation Research Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509Japan

Understanding aerosol-vegetation interactions is vital in ***,the interactions remain elusive partly due to the lack of suitable plant growth chamber ***,deposition of submicron particles on leaf surfaces is challenging due to its low deposition velocities compared to larger *** this work,we present a plant-growth chamber that was used to study the effect of sub-micron black carbon(BC)particles on the growth and photosynthesis of *** chamber system simultaneously enables the growth of multiple plants in pots and the deposition of submicron particles onto *** spraying methods assisted by ultrasonic and electrostatic forces were employed as aerosol generators to realize the particle *** flow regime inside the chamber was numeri-cally calculated to predict the transportation of aerosol particles,suggesting the optimal operating conditions of the *** gas-phase particle size distribution measurements showed that gener-ated BC particles were suspended in submicron diameter *** aerosol generators were examined in the chamber using three conductor and insulator substrates as a model of plant *** observations and spectroscopic analysis ascertained that submicron BC particles generated from our generators were deposited on all substrate *** the developed chamber system,systematic studies can be performed to advance the fundamental understanding of aerosol-vegetation interactions.

关键词： Aerosol Exposure chamber Spray drying Black carbon

Retinal Vascular Imaging Application in Women’s Reproductive Health:Clinical Implications and Future Directions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Maternal-Fetal Medicine 2024年第2期6卷 92-96页

作者： Beth Shi Yu lim Ling-Jun Li Yong Loo Lin School of Medicine National University of SingaporeSingapore 117597Singapore Department of Obstetrics&Gynaecology Yong Loo Lin School of MedicineNational University of SingaporeSingapore 119228Singapore Global Centre for Asian Women’s Health Human Potential Translational Research ProgrammeYong Loo Lin School of MedicineNational University of SingaporeSingapore 117597Singapore NUS Bia-Echo Asia Centre for Reproductive Longevity and Equality(ACRLE) Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117456Singapore Singapore Eye Research Institute Singapore National Eye CentreSingapore 168751Singapore

Over the past two decades,population-based studies employing semiautomatic computer-assisted programs have uncovered associations between retinal microvascular features and various systemic *** the recognition of retinal imaging in cardiometabolic health grows,there is increasing evidence supporting its application in women’s health,particularly during the reproductive *** review aims to summarize the indications of retinal imaging in women’s health and intergenerational health,where suboptimal retinal imaging has been found to mirror pathological systemic changes,such as suboptimal hemodynamic circulation,inflammation,endothelial dysfunction,oxidative stress,and hypoxia in *** from Singapore Growing Up in Singapore Towards Healthy Outcomes and Singapore Preconception Study of Long-Term Maternal and Child Outcomes cohorts have reported serial changes in retinal conventional microvascular features(e.g.,retinal arteriolar narrowing,retinal venular widening)and retinal geometric microvascular features(e.g.,sparse fractal dimension,enlarged branching angle,and increased curvature tortuosity)during the preconception and antenatal *** morphological abnormalities were found to be related to female fertility,maternal antenatal health conditions,postnatal maternal cardiometabolic health,and intergenerational health in the *** the compelling evidence of the ability to detect microvascular changes through noninvasive methods at an early stage,retinal imaging holds the potential to facilitate timely interventions,mitigate the progression of complications,and prevent adverse pregnancy *** ahead,the convergence of artificial intelligence and advanced imaging techniques heralds a promising era in women’s health research and clinical practice.

关键词： Retinal vascular imaging Reproductive health

Real-world utility of serological tests in patients with suspected scrub typhus in the Republic of Korea:A single-center,retrospective,observational study

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2024年第6期17卷 273-280,I0004,I0005页

作者： Seulki Kim A Reum Kim Seungjin lim Su Jin Lee Moonsuk Bae Division of Infectious Diseases Department of Internal MedicinePusan National University Yangsan HospitalYangsanRepublic of Korea Research Institute for Convergence of Biomedical Science and Technology Pusan National University Yangsan HospitalYangsanRepublic of Korea Department of Internal Medicine Pusan National University School of MedicineBusanRepublic of Korea

Objective:Serological tests are widely used for scrub typhus diagnosis;however,their limitations are *** study aims to assess their practical value in clinical ***:We analyzed the data of adult patients with suspected scrub typhus who visited a tertiary care hospital in the Republic of Korea from September to December from 2019 to *** included patients had an acute fever and at least one of the following ten secondary findings:myalgia,skin rash,eschar,headache,thrombocytopenia,increased liver enzyme levels,lymphadenopathy,hepatomegaly,splenomegaly,and pleural *** diagnoses were grouped as scrub typhus or other diseases by two infectious disease ***:Among 136 patients who met the eligibility criteria,109 had scrub typhus and 27 had different *** and paired total antibodies using immunofluorescence assay(IFA),and total antibodies using immunochromatography-based rapid diagnostic testing(ICT)were measured in 98%,22%,and 75%of all patients,*** using paired samples for scrub typhus was established at a median of 11[interquartile range(IQR)10-16]days following the first *** the 82 admitted patients,the median admission time was 9(IQR 7-13)*** to IFA,58(55%)patients with scrub typhus had total immunoglobulin titers≥1:320,while 23(85%)patients with other disease had titers<1:*** ICT results were observed in 64(74%)patients with scrub typhus and 10(67%)patients with other diseases showed negative ICT ***:Serological testing for scrub typhus is currently insufficient for decision-making in clinical practice.

关键词： Scrub typhus Serological test Immunofluorescence assay Immunochromatography Rapid detecting test