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切片厚度和护色处理对热风干燥雪花梨干品质的影响

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保鲜与加工 2024年第6期24卷 40-47页

作者：滑竺青赵江丽杨壮易岸威王永霞关军锋河北工程大学生命科学与食品工程学院河北邯郸056000 河北省农林科学院生物技术与食品科学研究所河北石家庄050051

采用热风干燥法制备雪花梨干。以色泽、硬度、弹性、咀嚼性、总酚、总黄酮、可溶性糖和感官评分为评价指标,考察切片厚度(3、4、5、6、7、8 mm)和护色处理(CaCl_(2)、NaCl、D-异抗坏血酸钠、柠檬酸溶液浸泡、热烫)对梨干品质的影响,并以... 详细信息

采用热风干燥法制备雪花梨干。以色泽、硬度、弹性、咀嚼性、总酚、总黄酮、可溶性糖和感官评分为评价指标,考察切片厚度(3、4、5、6、7、8 mm)和护色处理(CaCl_(2)、NaCl、D-异抗坏血酸钠、柠檬酸溶液浸泡、热烫)对梨干品质的影响,并以Z-score(Z值)综合模型进行评价,优选出适宜的切片厚度和护色处理。结果表明:随着切片厚度的增加,梨干的颜色变深,硬度、弹性和咀嚼性增大,总酚和总黄酮含量降低,可溶性糖含量增加;Z-score综合模型评价结果显示,切片厚度为4 mm时,Z值总和最高。护色处理均能改善梨干色泽,提高总酚和总黄酮含量,但可溶性糖含量降低。D-异抗坏血酸钠处理组梨干的亮度值(L^(*))最高,红绿值(a^(*))和蓝黄值(b^(*))最低,色差值(ΔE)最小;CaCl_2处理提高了梨干的硬度;热烫处理降低了梨干的弹性和咀嚼性。Z-score综合模型评价结果显示,以0.8 g/100 mL D-异抗坏血酸钠溶液浸泡护色的Z值总和最高。综上,热风干燥制备雪花梨干的厚度和护色条件为:切片厚度4 mm、0.8 g/100 mL D-异抗坏血酸钠溶液浸泡10 min。

关键词：梨干热风干燥工艺条件品质雪花梨

数字减影血管造影三维导航技术在UAE患者中的应用效果及对并发症的影响

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中国计划生育和妇产科 2024年第5期16卷 83-86页

作者：金钊郑国高辉玲刘江丽付志霞河北生殖妇产医院放射介入科河北石家庄050090 河北生殖妇产医院生殖医学科河北石家庄050090

目的探讨数字减影血管造影(digital subtraction angiography,DSA)三维导航技术在子宫动脉栓塞(uterine artery embolization,UAE)患者中的应用效果。方法选取2020年1月至2023年1月河北生殖妇产医院接受治疗且术后均接受3个月随访的105... 详细信息

目的探讨数字减影血管造影(digital subtraction angiography,DSA)三维导航技术在子宫动脉栓塞(uterine artery embolization,UAE)患者中的应用效果。方法选取2020年1月至2023年1月河北生殖妇产医院接受治疗且术后均接受3个月随访的105例UAE患者的资料,其中接受常规血管造影引导下UAE治疗的50例作为对照组,接受DSA三维导航技术引导下UAE治疗的55例作为观察组,比较两组患者术后临床疗效、手术时间、并发症和卵巢功能指标[黄体生成素(luteinizing hormone,LH)、卵泡刺激素(follicle stimulating hormone,FSH)、雌二醇(estradiol,E_(2))]。结果观察组手术时间(51.11±5.58)min少于对照组(72.33±7.04)min、治疗总有效率(98.18%)高于对照组(84.00%),差异有统计学意义(P0.05);观察组并发症发生率(9.09%)低于对照组(30.00%),差异有统计学意义(P<0.05)。结论DSA三维导航技术引导下的UAE治疗能够缩短手术时间,减少对卵巢功能的影响,降低并发症发生率,提高临床疗效。

关键词：数字减影血管造影三维导航技术子宫动脉栓塞卵巢功能临床疗效

Se-sensitized NIR hot band absorption photosensitizer for anti-Stokes excitation deep photodynamic therapy

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Science China Chemistry 2022年第3期65卷 563-573页

作者： Dandan Ma Hui Bian Saran Long Panwang Zhou Ruisong Tian Yingnan Wu Haoying Ge mingle Li Jianjun Du jiangli Fan Yukui Zhang Xiaojun Peng State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024China Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Shenzhen Research Institute Dalian University of TechnologyShenzhen 518057China Department of Chemistry Korea UniversitySeoul 02841Republic of Korea

Conventional anti-Stokes materials-involved deep photodynamic therapy(dPDT)requires much high-intensity irradiance due to low photosensitization efficiency.Herein,we proposed a"booster effector"approach to construct highly efficient hot band absorption phototherapeutics for low/biosafety power anti-Stokes light-triggered d PDT.Se,as"booster effector",was introduced into hot band absorption luminophores(HBAs),which not only significantly facilitated intersystem crossing,but also simultaneously enhanced hot band excitation efficiency atν808,as a result successfully enabling excellent photogenerated singlet oxygen capability of HBAs under ultra-low power anti-Stokes excitation(10 mW cm^(-2)in vitro).As far as we know,such low laser power-initiated photosensitization activity has never been reported in the existing anti-Stokes material systems.Importantly,FUC-Se ME can self-assemble into uniform nanospheres in water,greatly boosting cellular uptake(>25-fold larger than FUC-Se),and achieve superior cancer-killing effect(808 nm,10 mW cm^(-2),5 min,the half-maximal inhibitory concentration IC50=1.36μM).After further PEGylation with folate-attached polymer,the resultant FUC-Se ME@FA can effectively enrich at the tumor(signal-to-background ratio,10).Under safety irradiation(330 mW cm^(-2)),FUC-Se ME@FA effectively inhibits deep-seated tumor progression(the tumor growth inhibition rate,84%).This work provides a successful paradigm,possibly being more clinically beneficial than conventional anti-Stokes materials.

关键词： anti-Stokes hot band absorption photodynamic therapy deep-seated tumor low power

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木质素分级对其应用性能的影响

化工学报 2022年第5期73卷 1894-1907页

作者：王江丽薛敏赵承科岳凤霞华南理工大学轻工科学与工程学院制浆造纸工程国家重点实验室广东广州510640

木质素是一种结构复杂的天然芳香类聚合物,功能基团丰富,具有良好的开发应用前景。工业碱木质素是当前木质素转化利用的主体,主要源于制浆黑液。由于原料来源、制浆工艺的影响,木质素多分散性高、结构与性能不一,致使相应的木质素基产... 详细信息

木质素是一种结构复杂的天然芳香类聚合物,功能基团丰富,具有良好的开发应用前景。工业碱木质素是当前木质素转化利用的主体,主要源于制浆黑液。由于原料来源、制浆工艺的影响,木质素多分散性高、结构与性能不一,致使相应的木质素基产品的均一性与稳定性较差。通过木质素分级可以获得具有不同分子量或特定化学结构特征的木质素级分,促使各级分的多分散性降低、均一性提高,进而针对特定性能的级分进行改性或者直接利用可进一步提高产品的稳定性。对现行木质素的主要分级方式进行了总结,重点探讨了工业碱木质素的分级方式对其后续利用的影响及存在问题。最后,针对木质素不同级分的特点对木质素未来分级的方向及应用前景提出了展望。

关键词：木质素分级碱木质素分子量多分散性膜分级分离纯化

Clinical study on high-resolution CT and pulmonary function in severe acute respiratory syndrome patients during recovery phase

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Chinese Medical Journal 2005年第6期118卷 512-515页

作者： YINCheng-hong WANGChao WENYan jiangli LIUYing JIAOYun-min CHENJiang-hong TANGShu-zhen YUEMao-xing HEZheng-yi MADa-qing ZHANGShu-wen WANGBao-en DepartmentofInfectionandCriticalCareMedicine BeijingFriendHospitalAffiliatedtoCapitalUniversityofMedicalSciencesBeijing100050China DepartmentofCriticalCareMedicine BeijingFuxingHospital.Beijing100038China DepartmentofSpecialMedicine PLA306HospitalBeijing100101China

Severe acute respiratory syndrome (SARS) is an acute respiratory infectious disease caused by a novel coronavirus, firstly broke out in November 2002 in Guangdong and prevailed quickly in Beijing, Hong Kong, Taiwan and other regions of China. It was one of the most potential pandemic diseases and had affected more than 20 other countries.^(1,2) There have been a lot of resear-ches^(2-7) in terms of its etiology, epidemiology, pathogenesis, clinical characteristics, diagnostics, treatment and prevention, vaccines and so on.Along with control of the epidemic situation, a great number of SARS patients were in the recovery phase, therefore, we undertook a half-year follow-up investigation on their clinical, laboratory and image situations.

关键词： severe acute respiratory syndrome · recovery phase · high-resolution CT · pulmonary function

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平邑甜茶发根农杆菌介导转化体系构建与优化

果树学报 2024年第5期41卷 999-1008页

作者：周雪婷武凯凯崔蓝芳张坤玺白团辉史江莉焦健王苗苗刘昱赵玉洁万然郝鹏博郑先波河南农业大学园艺学院郑州450046 河南省园艺植物生物学国际联合实验室郑州450046

【目的】建立并优化平邑甜茶(Malus hupehensis Rehd.)幼苗简单、高效、快速的发根农杆菌转化体系。【方法】以不同苗龄的平邑甜茶幼苗为材料,使用携带GFP及GUS过表达质粒的发根农杆菌K599,通过注射法、活化菌液浸染及菌株涂抹方法侵染... 详细信息

【目的】建立并优化平邑甜茶(Malus hupehensis Rehd.)幼苗简单、高效、快速的发根农杆菌转化体系。【方法】以不同苗龄的平邑甜茶幼苗为材料,使用携带GFP及GUS过表达质粒的发根农杆菌K599,通过注射法、活化菌液浸染及菌株涂抹方法侵染平邑甜茶根颈部诱导毛状根,利用GFP荧光检测、GFP蛋白印迹检测、DNA检测和GUS染色方法进行转基因株系验证,同时对成功转化株系根、茎、叶组织的表达量进行分析,检测发根农杆菌在转化平邑甜茶株系中的迁移性。【结果】不同苗龄平邑甜茶幼苗诱导毛状根能力具有较大差异,其中三叶龄幼苗诱导毛状根率最高,为96%,五叶龄幼苗最高的毛状根诱导率为65%,以使用菌株涂抹方式转化植株的毛状根分布为最佳、毛状根诱导率为最高。发根农杆菌在成功转化株系中存在随机向地上部迁移的现象,并能够整合目的基因至叶片叶柄及部分主叶脉基因组中,但在培养30 d时无法通过蛋白印迹方式在蛋白水平上检测到蛋白信号。【结论】建立并优化了简单、高效的发根农杆菌介导的平邑甜茶转化体系,鉴定了发根农杆菌在转化株系中随机向地上部迁移规律,为发根农杆菌技术的进一步利用提供理论依据。

关键词：平邑甜茶发根农杆菌转化效率迁移性

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Converting rubber seed oil into hydrocarbon fuels via supported Pd-catalyst

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International Journal of Agricultural and Biological Engineering 2017年第6期10卷 201-209页

作者： Chen Yubao Hao Yajie Zhao Yongyan Zhou Liming Yang Shunping Gao Yanni Ma jiangli Du Junchen Dona Souliyathai Zhang Aimin The China-Laos Joint Lab for Renewable Energy Utilization and Cooperative Development Yunnan Normal UniversityKunming 650500YunnanChina Kunming Institute of Precious Metals Kunming 650106YunnanChina

The one-step hydrotreatment of rubber seed oil to produce hydrocarbon fuels has been carried out via supported Pd-catalyst,and analyzed emphatically some elements affected catalytic cracking process,for example,temperature,hydrogen partial pressure and dosage of catalyst,etc.Through experimental research,the author found out the appropriate catalytic cracking conditions as follows:310℃ of reaction temperature,2 MPa of hydrogen partial pressure,15 of the ratio of oil to catalyst(m(oil)/m(catalyst)),100 r/min of stirring speed.Under these conditions,effective component of hydrocarbon fuels in the converted oil accounts for 99.49%,and the proportion of C_(8)-C_(16) can reach as high as 79.61%.The converted oil was similar to petroleum-based oil in chemical composition,and can be used for future the aviation biofuels development as the source of raw material because it contains a large amount of hydrocarbon in the range of C_(8)-C_(16).

关键词： rubber tree seed oil catalytic cracking Pd based catalyst hydrocarbon fuels biofuel renewable energy

A unique two-photon fluorescent probe based on ICT mechanism for imaging palladium in living cells and mice

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Chinese Chemical Letters 2020年第11期31卷 2913-2916页

作者： Shuangzhe Zhang Haidong Li Qjchao Yao Sahar Ghazali jiangli Fan Jianjun Du Jingyun Wang Fengli Gao Miao Li Haibo Wang Chengyong Dong Xiaojun Peng State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024China Department of Chemistry and Nanoscience Ewha Womans UniversitySeoul 03760Korea School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024China Research Institute of Dalian University of Technology in Shenzhen Shenzhen 518057China Division of Hepatobiliary and Pancreatic Surgery Department of General SurgeryThe Second Affiliated Hospital of Dalian Medical UniversityDalian 116000China

Palladium(0)as one of the vital transition metals,is employed in numerous industries,such as drug synthesis,aerospace high-tech field and automobile industry.When the Pd(0)enter into the body,it will bind with thiol-containing amino acids,DNA,RNA,and other biomolecules damaging to human health.Thus,developing a novel tool for monitoring and imaging of Pd(0)in vivo is very urgent.In the work,based on a intramolecular charge transfer(ICT)mechanism a two-photon fluorescent probe NIPd had been designed and synthesized for the recognition Pd(0).In vitro experiments data displayed that probe NIPd exhibited a 13-fold fluorescent increase for Pd(0)in 30 min in the aqueous solution with a detection limit of 16 nmol/L.It also showed the outstanding selectivity and antijamming performance.More importantly,NIPd could be served as a two-photon fluorescent probe for real-time monitoring Pd(0)in living cells and mice.

关键词： Two-photon Fluorescent probe Imaging Living cells Palladium

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严肃游戏评估青少年自杀风险的探索

中国心理卫生杂志 2023年第10期37卷 873-879页

作者：巫江丽王分分周国岭李凯悦胡敏蔡恬程晔施剑飞浙江大学医学院附属精神卫生中心(杭州市第七人民医院) 杭州310013 杭州云戒科技有限公司杭州311100 浙江理工大学心理学系杭州310018

目的:探索基于严肃游戏构建的青少年自杀风险机器学习预测模型的性能。方法:从医院和学校共招募1135名9~18岁青少年,医生依据临床症状诊断、既往自杀史等资料,心理老师依据量表、观察、访谈等心理普查资料,将青少年自杀风险程度评估为... 详细信息

目的:探索基于严肃游戏构建的青少年自杀风险机器学习预测模型的性能。方法:从医院和学校共招募1135名9~18岁青少年,医生依据临床症状诊断、既往自杀史等资料,心理老师依据量表、观察、访谈等心理普查资料,将青少年自杀风险程度评估为无风险、低风险、中风险或高风险,通过严肃游戏软件获取其行为反应特征数据,运用机器学习算法建立行为反应特征和自杀风险的模型,并评估模型的预测性能。结果:机器学习模型对高风险的预测准确度最高(AUC=0.92),其次依次是中风险(AUC=0.85),无风险(AUC=0.74),低风险(AUC=0.62)。模型在区分自杀风险的4个类别(无风险、低风险、中风险、高风险)上的预测准确率为0.81,召回率为0.69,精确率为0.64,F1值为0.66;在区分有无自杀风险上的预测准确率为0.84,召回率为0.80,精确率为0.66,F1值为0.69。结论:通过严肃游戏软件获取的行为反应特征数据集能够在一定程度上解释和预测青少年的自杀风险.

关键词：自杀严肃游戏机器学习青少年