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Orange-emitting bimetallic nanoclusters combined with cyan-emitting Fe@TAOH as white light-emitting materials

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Chinese Chemical Letters 2022年第1期33卷 298-303页

作者： Wenying mi na Shao College of Chemistry Beijing Normal UniversityBeijing 100875China

White-light-emitting diodes(WLEDs)possess many merits,such as high efficiency and *** cost-effective,environmentally friendly,high-performance luminophores to achieve high-quality,full-spectrum,white lighting is of great importance to the construction and progress of *** this work,solid-state,highly luminescent orange-emitting nanoclusters(MgCl_(2)-Lys-Ag/Au NCs)were prepared via the salt-induced precipitation of Lys-Ag/Au NCs from solution,which showed a high absolute quantum yield of 44.5%.A cyan-emitting metal-organic framework(MOF)-like nanomaterial(named Fe@TAOH)was also prepared by the self-assembly of the coordination compound of Fe^(3+)and TAOH acted upon by H_(3)PO_(4) via H-bonding andπ-πstacking interactions,which showed an emission peak at 485 nm and an absolute quantum yield of 21.7%.The potential application of the two facile-synthesis,low toxicity,and highly luminescent materials in WLEDs was *** WLEDs was constructed by coating powdered Fe@TAOH and MgCl_(2)-Lys-Ag/Au NCs samples on commercial GaN LED chip with 365 nm emissions,and it exhibited acceptable white light characteristics with a CIE color coordinates and a color rendering index(CRI)of(0.28,0.34)and 79.6,respectively,implying good prospects in the field of WLEDs.

关键词： Metal nanoclusters Salt-mediated precipitation Fe@TAOH MOFs Self-assembly White light-emitting materials

Complete restoration of congenital conductive hearing loss by staged surgery: A case report

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World Journal of Clinical Cases 2021年第33期9卷 10286-10292页

作者： Ji Seob Yoo Chan mi lee Yun na Yang Eun Jung lee Department of Otorhinolaryngology-Head and Neck Surgery Jeonbuk National University College of MedicineJeonju 54907South Korea Biomedical Research Institute Clinical Medicine of Jeonbuk National UniversityJeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND Stapedial tendon ossification is a rare disease,with only a few *** stapedial tendon originates from the apex of the pyramidal eminence and is attached to the neck of the *** stapedial tendon ossification,the stapes is fixed,causing conductive hearing *** most cases,complete hearing restoration is achieved by dividing the stapedial tendon after exploratory *** SUMMARY A 28-year-old woman presented to our hospital with the major complaint of bilateral hearing loss that started during *** tympanotomy was performed due to suspicion of otosclerosis or middle ear *** found bilateral conductive hearing loss due to stapedial tendon ossification with a middle ear anomaly during *** have been several reports of complete recovery of hearing after resection of the stapedial ***,in this case,recovery of hearing was insufficient,even with the division of the stapedial *** the second surgery,the stapes anomaly and footplate fixation were confirmed,and hearing was completely recovered after ***,we report this case with a review of the relevant *** This is the first case of stapedial tendon ossification and fixation of the footplate surgically diagnosed on both *** surgical treatment,successful results are expected.

关键词： Stapedial tendon ossification middle ear anomaly Footplate fixation Congenital hearing loss Stapedotomy Case report

Photodegradation of Hexafluoropropylene Oxide Trimer Acid under UV Irradiation

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Journal of Environmental Sciences 2020年第11期32卷 132-140页

作者： Chen Li na mi Zhanghao Chen Cheng Gu State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

As a novel alternative to traditional perfluoroalkyl substances(PFASs),including perfluorooctanoic acid(PFOA)and perfluorooctane sulfonate(PFOS),hexafluoroproplyene oxide trimer acid(HFPO-TA)has been detected worldwide in surface ***,recent researches have demonstrated that HFPO-TA has stronger bioaccumulation potential and higher hepatotoxicity than *** treat these contaminants *** and PFOS,some photochemical techniques by adding exogenous substances had been ***,there is still no report for the behavior of HFPO-TA itself under direct UV *** current study investigated the photo-transformation of HFPO-TA under UV irradiation in aqueous *** 72 hr photoreaction,75%degradation ratio and 25%defluorination ratio were achieved under ambient *** active species,i.e.,hydrated electrons and active hydrogen atoms,generated from water splitting played dominant roles in degradation of HFPO-TA,which was confirmed by different effects of reaction atmospheres and quenching experiments.A possible degradation pathway was proposed based on the products identification and theoretical *** general,HFPO-TA would be transformed into shorter-chain PFASs,including hexafluoropropylene oxide dimer acid(HFPODA),perfluoropropionic acid(PFA)and trifluoroacetate(TFA).This research provides basic information for HFPO-TA photodegradation process and is essential to develop novel remediation techniques for HFPO-TA and other alternatives with similar structures.

关键词： HFPO-TA Photo-reductive Hydrated electrons Active hydrogen atoms Degradation pathway

Impacts of Types and Degree of Obesity on Non-Alcoholic Fatty Liver Disease and Related Dyslipidemia in Chinese School-Age Children?

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Biomedical and Environmental Sciences 2011年第1期24卷 22-30页

作者： MENG LingHui LUO na mi Jie Department of Epidemiology Capital Institute of Pediatrics Beijing 100020 China Graduate SchoolPeking Union Medical College Beijing 100730 China Primary and middle School Students Health CareCenter affiliated to the Education Committee of Haidian District Beijing 100081 China

Objective To explore the impacts of types and degree of obesity on non‐alcoholic fatty liver disease （naFLD） and related lipids disturbance in Chinese school‐age children. Methods A total of 1 452 school‐age Children of 7 to 17 years were recruited in Beijing with representative cluster sampling method. Data of anthropometric measurements including weight, height and waist circumference were collected from March to May of 2007. Body mass index（Bmi）was calculated. Blood samples were obtained and lipid profiles including triglyceride （TG）, total cholesterol （TC）, high‐density lipoprotein cholesterol （HDL‐C） and low‐density lipoprotein cholesterol （LDL‐C） were measured, while glutamate‐pyruvate transaminase （ALT） and glutamic‐oxalacetic transaminase （AST） were determined to evaluate liver function. The liver was also scanned by sonography, and abnormal hepatic sonograms were documented. naFLD was diagnosed according to the criteria recommended by the Fatty Liver and Alcoholic Liver Disease Study Group under the Chinese Liver Disease Association. Analysis of covariance （ANOVA）, Chi‐square test for trend and binary logistic regression analysis were performed. Results The dyslipidemia and ultrasonographic fatty liver deteriorated with the degree of obesity defined either by Bmi or waist circumference. Compared with Bmi, waist circumference contributed more to the development of dyslipidemia, fatty liver and naFLD. The highest levels of TG, TC, LDL‐C, and lowest level of HDL‐C were seen in the mixed obese group followed by abdominal obese, peripheral obese and non‐obese ones. Adjusted for gender and age, the odds ratios （ORs） and their 95% confidence intervals of peripheral obesity, abdominal obesity and mixed obesity were 0, 10.93 （0.98‐121.96） and 79.16 （10.95‐572.44） for predicting naFLD; 12.61 （1.24‐127.78）, 19.39 （5.23‐71.85）, and 93.21 （29.56‐293.90） for predicting ultrasonographic fatty liver; 1.78 （0.59‐5.44）, 3.01 （1.91‐4.77）, and 4.64 （3.52‐6.12） for predicting d

关键词： Obesity type Degree of obesity Dyslipidemia naFLD School‐age Children

Streptococcus mutans activates the AIM2, NLRP3 and NLRC4 inflammasomes in human THP-1 macrophages

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International Journal of Oral Science 2018年第3期10卷 190-196页

作者： Yuri Song Hee Sam na Eunjoo Park mi Hee Park Hyun Ah lee Jin Chung Department of Oral microbiology School of Dentistry Pusan National University Institute of Translational Dental Sciences Pusan National University

Streptococcus mutans(S. mutans), a major aetiologic agent of dental caries, is involved in systemic diseases, such as bacterial endocarditis, if it enters the bloodstream through temporary bacteraemia. Interleukin(IL)-1β, a proinflammatory cytokine, is related to the host defences against pathogens, and its synthesis, maturation, and secretion are tightly regulated by the activation of the inflammasome, an inflammatory signalling complex. This study examined the signalling mechanism of IL-1β secretion and the inflammasome pathway induced by S. mutans to explain the molecular mechanism through which systemic infection by oral streptococci can occur. After infection of THP-1 cells with S. mutans, the expression of inflammasome components was detected using various methods. S. mutans induced IL-1β secretion via caspase-1 activation, and S. mutans-induced IL-1β secretion required absent in melanoma(AIM2), NLR family pyrin domain-containing 3(NLRP3) and NLR family CARD domain-containing 4(NLRC4)inflammasome activation. In particular, the S. mutans-induced NLRP3 inflammasome was mediated by adenosine triphosphate(ATP) release, potassium depletion and lysosomal damage. Our study provides novel insight into the innate immune response against S. mutans infection.

关键词： NLRP3 and NLRC4 inflammasomes in human THP-1 macrophages THP Streptococcus mutans activates the AIM2 AIM

Catalysts for electrochemical ammonia oxidation:Trend,challenge,and promise

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Science China Materials 2022年第12期65卷 3334-3352页

作者： Sol A lee mi Gyoung lee Ho Won Jang Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Electrical and Computer Engineering University of TorontoToronto M5S 3G4OntarioCanada Advanced Institute of Convergence Technology Seoul National UniversitySuwon 16229Republic of Korea

Developing sustainable and clean energy technology is critial to address the current energy and environmental *** an energy carrier,hydrogen has been getting attention due to its abundance,high energy density,and zero carbon *** to the difficulty of hydrogen storage and transport,the electro-oxidation of ammonia shows great potential for renewable energy since it satisfies both energy supply and environmental protection as a carbon-free fuel with high hydrogen ***,ammonia electro-oxidation is a sluggish reaction and shows low *** the complicated mechanism and intermediates is conducive to developing efficient electrocatalysts with high catalytic activity and *** review begins with the ammonia oxidation technologies and their *** two typical mechanisms for ammonia electro-oxidation,Oswin-Salomon mechanism and Gerischer-Mauerer mechanism,are discussed,and attention to the poisoning species is ***,the electrocatalysts for ammonia reaction are classified into Pt-based catalysts and non-noble metal-based catalysts,and their performances are reviewed with various *** on the progress on the electrochemical ammonia oxidation catalysts,the challenges and future insight on ammonia oxidation reaction are discussed and proposed.

关键词： NH3 oxidation reaction electrocatalysts green hydrogen

Bee wax coated water-soluble fraction of bee venom improved altered glucose homeostasis in streptozotocin-induced diabetic rats

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Journal of Traditional Chinese Medicine 2019年第6期39卷 842-852页

作者： Rangachari Balamurugan Jeong Hwa Kim mi-na Jo Chenglian Xue Jin kyu Park Jae Kwon lee Department of Beesen Lab 204Beesen Co.Ltd.Bioventure TownYuseong Daero 1662Dae Jeon 34054Republic of Korea Department of Biology Education College of EducationChungbuk National UniversityCheongju 28644Republic of Korea

OBJECTIVE:To evaluate the anti-diabetic efficacy of orally administered bee wax coated water-soluble fraction of bee venom(BWCBVA)drug over orally administered bee wax(BW)and intraperitoneally administered whole bee venom(BV)in streptozotocin(STZ)-induced diabetic ***:Diabetes induced by intraperitoneal administration of 60 mg/kg STZ was treated with BWCBVA,BW,and BV for 21 *** biochemical,protein and histological changes,and physical characteristics of BWCBVA were then ***:The BWCBVA group shows significantly decreased blood glucose level as compared to the BW and intraperitoneally administered whole BV treated ***,BWCBVA significantly normalizes the serum biochemical parameters and increases the body ***,administration of BWCBVA significantly reverses the altered liver expression of phosphatidylinositide 3-kinases-p85 and liver *** analysis of the pancreas an increase in the islet cell numbers and decrease inβ-cell ***-administering BWCBVA 0.25 mg/kg with nifedipine(6.8 mg/kg)and nicorandil(13.8 mg/kg)to the diabetic rats results in insulin secretion through enhanced calcium ion *** performance liquid chromatography and gas chromatography was performed to identify the pharmacologically important compounds present in ***:Our results indicate that BWCBVA,an orally administered colon specific drug delivery system,can be effective in treating diabetes mellitus.

关键词： Diabetes Mellitus Waxes Bee venoms Streptozotocin

Recombinant human fibroblast growth factor-2 promotes nerve regeneration and functional recovery after mental nerve crush injury

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Neural Regeneration Research 2017年第4期12卷 629-636页

作者： Sung Ho lee Wei-Peng Jin na Ri Seo Kang-mi Pang Bongju Kim Soung-min Kim Jong-Ho lee Dental Research Institute Department of Oral and Maxillofacial Surgery Seoul National University School of Dentistry Seoul Korea Dental Life Science Research Institute Clinical Translational Research Center for Dental Science Seoul National University Dental Hospital Seoul Korea Dental Research Institute Seoul National University Seoul Korea

Several studies have shown that fibroblast growth factor-2 （FGF2） can directly affect axon regeneration after peripheral nerve damage. In this study, we performed sensory tests and histological analyses to study the effect of recombinant human FGF-2 （rhFGF2） treatment on damaged mental nerves. The mental nerves of 6-week-old male Sprague-Dawley rats were crush-injured for 1 minute and then treated with 10 or 50 μg/mL rhFGF2 or PBS in crush injury area with a mini Osmotic pump. Sensory test using von Frey filaments at 1 week revealed the presence of sensory degeneration based on decreased gap score and increased difference score. However, at 2 weeks, the gap score and difference score were significantly rebounded in the mental nerve crush group treated with 10 μg/mL rhFGF2. Interestingly, treatment with 10 μg/mL rhFGF had a more obviously positive effect on the gap score than treatment with 50 μg/mL rhFGF2. In addition, retrograde neuronal tracing with Dil revealed a significant increase in nerve regeneration in the trigeminal ganglion at 2 and 4 weeks in the rhFGF2 groups （10 μg/mL and 50 μg/mL） than in the PBS group. The 10 μg/mL rhFGF2 group also showed an obviously robust regeneration in axon density in the mental nerve at 4 weeks. Our results demonstrate that 10 μg/mL rhFGF induces mental nerve regeneration and sensory recovery after mental nerve crush injury.

关键词： nerve regeneration mental nerve fibroblast growth factor crush injury sensory neuron functionalrecovery neural regeneration

Inter-observer Reliability of Indicators and Decision of Pattern Identification Using Diagnostic Flowchart with Traditional Korean Medicine

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Chinese Journal of Integrative Medicine 2017年第5期23卷 338-344页

作者： Ju Ah lee Jeeyoun Jung mi mi Ko Myeong Soo lee Korean Medicine Fundamental Research Division Korea Institute of Oriental Medicine Daejeon 305-811 Republic of Korea Clinical Research Division Korea Institute of Oriental Medicine Daejeon 305-811 Republic of Korea

Objective： To evaluate the consistency of patterns and pattern identification（PI）, and the improvement in the diagnosis of blood stasis after the standard operating procedures（SOPs） were enhanced by using a diagnostic flowchart. Methods： A total of 358 subjects who were admitted by the Jaseng Hospital of Korean Medicine between June 2013 and December 2014 were included in the study. Each patient was independently diagnosed by two experts from the same department. In 2014, the SOPs included the use of a diagnostic flowchart for each indicator. Inter-observer consistency was assessed by simple percent agreement and by the kappa and AC1 statistics. Results： The improvements in inter-observer agreement for the indicators（for al patients） and PI were greater in 2014 than in 2013. In 2013, the j-value measure of agreement between the two experts ranged from ＂poor＂（κ=–0.051） to ＂good＂（κ=0.968）. The AC1 measure of agreement between the experts was generally high for the indicators and ranged from –0.010 to 0.978. In most cases, agreement was considerably lower when it was assessed by the j-values compared with the AC1 values. In 2014, the j-value measure of agreement on the indicators（for the subjects） general y ranged from poor to good, with the values ranging from –0.007 to 0.994. Moreover, the AC1 measure of agreement between the experts was general y high for al of the indicators and ranged from ＂moderate＂（AC1=0.408） to ＂excel ent＂（AC1=0.996）. Conclusions： In four examinations, there was moderate agreement between the clinicians on the PI indicators of blood stasis. To improve clinician consistency（e.g., in the diagnostic criteria used）, it is necessary to analyse the reasons for inconsistency and to improve clinician training.（Trial registration No. KCT0000916）

关键词： blood stasis inter-observer reliability pattern identification traditional Chinese medicine traditional Korean medicine