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ACS Nano:突破!科学家利用来自尿液的生物标志物进行早期癌症筛查
日前,来自韩国蔚山国家科学技术研究所的研究人员通过研究开发出了一种新技术,该技术能够有效在尿液或血液中有效鉴别出促进癌症发生的物质,相关研究刊登于国际杂志ACS Nano上。文章中,研究人员开发出了一种集成的离心微流体平台(Exodisc),这种设备能够对尿液中的胞外膜泡(extracellular vesicles,EVs)进行分离。[查看]
http://www.cxbio.com/Article/acsnanotpkxjlylznyds_1.html
重磅!科学家深入解析CRISPR起源的5个谜团
如今研究者以CRISPR来对成簇规律间隔的短回文重复序列(clustered regularly interspaced short palindromic repeats)进行命名,同时他们还发现,CRISPR-Cas能够帮助细菌抵御外来病毒的入侵,尽管CRISPR系统能够用来进行基因的编辑,但Mojica和其它研究者们关于该系统的工作机制仍然存在一些问题,这种微生物免疫系统是如何进化的?[查看]
http://www.cxbio.com/Article/zbkxjsrjxcrisprqyd5g_1.html
只有在扫描隧道显微镜下才看得的世界最小耐力赛
迄今为止第一个纳米赛车比赛,nanorace。有一个很严肃的科学目的:对一台最近安装的特殊扫描隧道显微镜进行测试。这次比赛也同时能让人们深入了解纳米汽车如何应对极端的环境。[查看]
http://www.cxbio.com/Article/zyzsmsdxwjxckddsjzxn_1.html
Grace Syloid(R)【FP多功能介孔硅胶】在药用辅料中的应用
Syloid(R) FP硅胶为美国Grace推出的一系列多功能介孔微粉硅胶,其独特的内部三维结构、吸收容量及颗粒尺寸等特性,使其可以在药品、营养品和保健品等应用具有显著优势。在药用辅料领域,具有助流剂、消除静电、抗结块、防潮保护、改善稳定性等功能,备受知名医药企业青睐。[查看]
http://www.cxbio.com/Article/gracesyloidfpdgnjkgj_1.html
安慰剂为何有效?这要问免疫系统
安慰剂效应(Placebo Effect)这个现象由来已久。科学家们发现在许多场合下,安慰剂也能给患者的健康带来益处:一些研究发现安慰剂能缓解偏头痛患者的疼痛与其他症状;另一些科研人员则发现在用安慰剂替代药物后,帕金森患者的症状没有出现反弹。[查看]
http://www.cxbio.com/Article/awjwhyxzywmyxt_1.html
【FAPGG】,血管紧张素转换酶检测用底物
西宝生物提供高品质N-[3-(2-呋喃基)丙烯酰]-L-苯丙氨酰-甘氨酰-甘氨酸(FAPGG)。血管紧张素转换酶(ACE)是肾素-血管紧张素-醛固酮的重要成分,主要用于肺部病的诊断,FAPGG作为ACE底物用于测定其酶活性。[查看]
http://www.cxbio.com/Article/fapggxgjzszhmjcydw_1.html
Grace 923级硅胶 - GB/T11132及ASTM D1319专业推荐
923级硅胶是GB/T11132和ASTM D1319标准推荐使用的、专门用于分析石油中烃类含量的高纯度色谱专用硅胶。美国Grace 公司在硅胶材料领域久负盛名,西宝生物专业代理Grace生产的923级硅胶,免费热线400 021 8158。[查看]
http://www.cxbio.com/Article/xbswzytggrace923jgjg_1.html
西宝生物提供Grace Davisil硅胶色谱填料
西宝生物可提供Grace Davisil系列色谱硅胶填料。硅胶填料球形硅胶和无定形硅胶两种,Davisil硅胶填料主要为无定形硅胶,它还分为无键合硅胶和键合硅胶两种。客服热线:400-021-8158。Davisil系列产品性能好,专为色谱应用优化过;选择规格范围广,可根据客户对性能和成本的综合要求来选择;同时可在保证性能的基础上实现规模化生产。[查看]
http://www.cxbio.com/Article/xbswzytggracedavisil_1.html
N-乙酰-L-半胱氨酸 | N-Acetyl-L-cysteine(CAS:616-91-1)
西宝生物专业提供N-乙酰-L-半胱氨酸N-Acetyl-L-cysteine(CAS: 616-91-1),客服热线:400-021-8158。N-乙酰-L-半胱氨酸为粘多糖类试剂盒抗氧化剂,可用于黏痰溶解剂,适用于由大量痰阻塞所引起的呼吸阻塞,还可用于乙酰氨基酚中毒的解毒剂。[查看]
http://www.cxbio.com/Article/nyxlbgasnacetyllcyst_1.html
西方世界首个干细胞治疗产品Holoclar获欧盟批准
欧洲的眼病患者在羊年春节收获了福音——西方世界首个干细胞治疗产品Holoclar获得欧盟委员会(EC)有条 件批准,用于因(物理或化学因素所致)眼部灼伤导致的中度至重度角膜缘干细胞缺乏症(limbal stem-cell deficiency,LSCD)成人患者的治疗。 Holoclar由意大利凯西制药(Chiesi Farmaceutici)研发,是获批的首个含干细胞的先进治疗产品,也是首个用于治疗角膜缘干细胞缺乏症(LSCD)的产品。Holoclar不仅能 够作为角膜移植的替代疗法[查看]
http://www.cxbio.com/Article/xfsjsggxbzlcpholocla_1.html
Mannan 甘露聚糖 - Elicityl生物质提取甘露聚糖产品(1)
甘露聚糖是由β(1-4)链接D-甘露吡喃糖残基构成,在自然界蕴藏丰富,是从单子叶植物(如棕榈科植物,例如象牙果(Phytelephas sp.)、海枣(Phoenix dactylifera))胚乳或部分隶属松藻科(Codiaceae)和伞藻科(Dasycladaceae)的绿藻细胞壁中获得的纯的均一聚合物。[查看]
http://www.cxbio.com/Article/elicityl_Mannan_1.html
价格战烽烟再起,天价药还能风光多久?
生物制药公司艾伯维(Abb Vie)与快捷药方公司(Express Scripts)近日达成了协议,决定将其售价83,319美元、用于丙肝治疗的新药ViekiraPak以非常优惠的折扣出售(具体折扣没有披露)。对于生物技术领域的投资者来说,这一消息无疑是一场灾难。这意味着,吉利德制药公司(Gilead Pharmaceuticals)在销售其丙肝治疗药物Sovaldi(每疗程售价84,000美元)和Harvoni(每疗程售价95,000美元)时,不仅仅要与竞争对手拼疗效(吉利德的两种药疗效无疑更好),还要拼价格。华[查看]
http://www.cxbio.com/Article/jgzfyzqtjyhnfgdj_1.html
表面活性聚乙二醇 Surface Reactive PEGs - Nanocs---PEG修饰剂(8)
上海西宝生物提供Nanocs的PEG修饰剂 - 表面活性聚乙二醇 Surface Reactive PEGs,原装进口,质量保证,咨询/订购热线:400-021-8151[查看]
http://www.cxbio.com/Article/nanocs_surface_PEGs_1.html
乙酸[AF]检测试剂盒, Acetic Acid Assay Kit (ACS Analyser Format), 货号K-<font color='red'>ACE</font>TAF
西宝生物专业提供乙酸[AF法]检测试剂盒 Acetic Acid (ACS Analyser Format) Assay Kit,货号K-ACETAF, 原装进口,咨询热线:400-021-8151[查看]
http://www.cxbio.com/Article/K-ACETAF_1.html
二硫化物树枝状聚合物
二硫化物树枝状聚合物在酶和蛋白共轭研究方面具有优异的作用。这类聚合物在贵金属表面比如金,有高的嫁接收率。[查看]
http://www.cxbio.com/Article/1264_1.html
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乙酰丁香酮 Acetosyringone
乙酰丁香酮 Acetosyringone
1-萘乙酸 1-Naphthaleneacetic acid
1-萘乙酸 1-Naphthaleneacetic acid
LNT-N-acetyl-propargyl
LNT-N-acetyl-propargyl
LNnH-N-acetyl-propargyl
LNnH-N-acetyl-propargyl
LNnH-N-acetyl-spacer4-NH2
LNnH-N-acetyl-spacer4-NH2
LNnT-N-acetyl-propargyl
LNnT-N-acetyl-propargyl
Core type 2 -N-acetyl-propargyl
Core type 2 -N-acetyl-propargyl
Tetra-N-Acetyl-D-Lactosamine / TetraLacNAc
Tetra-N-Acetyl-D-Lactosamine / TetraLacNAc
Tri-N-Acetyl-D-Lactosamine / TriLacNAc
Tri-N-Acetyl-D-Lactosamine / TriLacNAc
Di-N-Acetyl-D-Lactosamine / DiLacNAc
Di-N-Acetyl-D-Lactosamine / DiLacNAc
N-Acetyl-D-Lactosamine / LacNAc
N-Acetyl-D-Lactosamine / LacNAc
Blood group H antigen triaose type5-NAc-spacer1-NH2
Blood group H antigen triaose type5-NAc-spacer1-NH2
Blood group H antigen pentaose type 1-N-Acetyl-Propargyl
Blood group H antigen pentaose type 1-N-Acetyl-Propargyl
Blood group H antigen pentaose type 1-Nacetyl-Spacer 3-Biotin
Blood group H antigen pentaose type 1-Nacetyl-Spacer 3-Biotin
Blood group H antigen tetraose type 2 -N-acetyl-Propargyl
Blood group H antigen tetraose type 2 -N-acetyl-Propargyl
6GrA1-N-acetyl-spacer4-NH2
6GrA1-N-acetyl-spacer4-NH2
6GrA1-NAc-spacer2-NH2
6GrA1-NAc-spacer2-NH2
Blood group A antigen tetraose type 5-NAc-spacer2-NH2
Blood group A antigen tetraose type 5-NAc-spacer2-NH2
Blood group A antigen triaose-N-acetyl-propargyl
Blood group A antigen triaose-N-acetyl-propargyl
Blood group A antigen tetraose type 5-NAc-spacer1-NH2
Blood group A antigen tetraose type 5-NAc-spacer1-NH2
6GrA1-NAc-spacer3-Biotin
6GrA1-NAc-spacer3-Biotin
Blood group A antigen tetraose type 5-N-acetyl-propargyl
Blood group A antigen tetraose type 5-N-acetyl-propargyl
Gb5-N-Acetyl-spacer 3-Biotin
Gb5-N-Acetyl-spacer 3-Biotin
Gb5-N-Acetyl-Propargyl
Gb5-N-Acetyl-Propargyl
Acetyl-Coenzyme A,trisodium salt
Acetyl-Coenzyme A,trisodium salt
Acetyl-Coenzyme A,trilithium salt
Acetyl-Coenzyme A,trilithium salt
N-氨基甲酰甲基乙磺酸, ACES, 99%
N-氨基甲酰甲基乙磺酸, ACES, 99%
2-Chloroacetamide (CAA),crystalline powder
2-Chloroacetamide (CAA),crystalline powder
2-acetyl-3,5-dihydroxyphenyl-O-β-D-glucopyranos
2-acetyl-3,5-dihydroxyphenyl-O-β-D-glucopyranos
2-deacetyl wilformine
2-deacetyl wilformine
2-deacetyl wilformine
2-deacetyl wilformine
NNN-N-D-Glucoside Acetate Salt
NNN-N-D-Glucoside Acetate Salt
NNK-β-D-glucoside Acetate Salt
NNK-β-D-glucoside Acetate Salt
Acetoxymethyl-NNK
Acetoxymethyl-NNK
1mol/l Acetic Acid (1N)
1mol/l Acetic Acid (1N)
0.1mol/l Acetic Acid(N/10)
0.1mol/l Acetic Acid(N/10)
0.2mol/l Disodium Dihydrogen Ethylenediamine Tetraacetate Solution
0.2mol/l Disodium Dihydrogen Ethylenediamine Tetraacetate Solution
0.025mol/l Disodium Dihydrogen Ethylenediamine Tetraacetate Solution
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Calcium Acetate 1.0 M
Calcium Acetate 1.0 M
Calcium Acetate 1.0 M
Calcium Acetate 1.0 M
Acetic Acid 1.0N (1.0M)
Acetic Acid 1.0N (1.0M)
Crystal Violet Indicator, 0.1% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
Crystal Violet Indicator, 0.1% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
Crystal Violet Indicator, 0.2% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
Crystal Violet Indicator, 0.2% (w/v) in Glacial Acetic Acid, for Nonaqueous Titrations
Crystal Violet Solution 1% in Glacial Acetic Acid
Crystal Violet Solution 1% in Glacial Acetic Acid
Non-aqueous filling solution; 1mol/litre lithium chloride (LiCl), dissolv in acetic acid
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Acetic Acid
Acetic Acid
1w/v% Crystal Violet Acetic Acid Solution
1w/v% Crystal Violet Acetic Acid Solution
0.2w/v% p- Naphtholbenzein Acetic Acid Solution
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TBN Titration solvent-2:1 chlorobenzene and glacial acetic acid
TBN Titration solvent-2:1 chlorobenzene and glacial acetic acid
(S)-(-)-2-Methoxy-2-(trifiuoromethyl)phenylacetic Acid
(S)-(-)-2-Methoxy-2-(trifiuoromethyl)phenylacetic Acid
(R)-(+)-2-Methoxy-2-(trifluoromethyl)phenylacetic Acid
(R)-(+)-2-Methoxy-2-(trifluoromethyl)phenylacetic Acid
Chromium(lll) Acetylacetonate
Chromium(lll) Acetylacetonate
4-Acetamido-TEMPO, free radical
4-Acetamido-TEMPO, free radical
4-Acetamido-TEMPO, free radical
4-Acetamido-TEMPO, free radical
Butyl Acetate
Butyl Acetate
Acetic Acid
Acetic Acid
Acetic Acid
Acetic Acid
Acetonitrile
Acetonitrile
Acetone, Spectrosol(R)
Acetone, Spectrosol(R)
Acetonitrile, Spectrosol(R)
Acetonitrile, Spectrosol(R)
Acetonitrile
Acetonitrile
Acetonitrile, Luminasol(R)
Acetonitrile, Luminasol(R)
Acetanilide Standard
Acetanilide Standard
Acetate in water 1000ppm
Acetate in water 1000ppm
Acetate 1mg/ml (1,000ppm)
Acetate 1mg/ml (1,000ppm)
Acetate- 0.2mg/ml (200ppm)
Acetate- 0.2mg/ml (200ppm)
Acetate 100ppm in H2O
Acetate 100ppm in H2O
Acetaldehyde
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Trace Elements in White Rice Flour Set(Cd Level I&II)
Trace Elements in White Rice Flour Set(Cd Level I&II)
Trace Elements in Tea Leaf Powder
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Trace Elements and Arsenic Compounds in Seaweed (Hijiki)
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N, N-Dimethylaceatamide
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Mobile Phase Buffer pH 4.5 - Sodium Acetate Trihydrate
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Zinc Acetate 10% w/v
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Sodium Acetate, 0.2M
Sodium Acetate, 0.2M
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Acetonitrile, 50% v/v
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Lead Acetate Solution (CH COO) Pb, 10%
Lead Acetate Solution (CH COO) Pb, 10%
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N-Acetylneuraminic acid aldolase
N-Acetylneuraminic acid aldolase
N-Acetylneuraminic acid aldolase
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Oxaloacetate Decarboxylase
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Acetate-CoA Ligase (Acetyl-CoA Synthetase),from yeast, lyophilizate
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Acetate-CoA Ligase (Acetyl-CoA Synthetase),from microorganism, lyophilizate
Acetate-CoA Ligase (Acetyl-CoA Synthetase),from microorganism, lyophilizate
Cholesterol Esterase, from Candida cylindracea, lyophilizate
Cholesterol Esterase, from Candida cylindracea, lyophilizate
Cholesterol Esterase, from Candida cylindracea, solution
Cholesterol Esterase, from Candida cylindracea, solution
CMP-N-Acetylneuraminic Acid,sodium salt
CMP-N-Acetylneuraminic Acid,sodium salt
UDP-N-Acetylglucosamine,disodium salt
UDP-N-Acetylglucosamine,disodium salt
Ethyclozate metabolite (CIA:5-Chloro-3 (1H)-indazolacetate)
Ethyclozate metabolite (CIA:5-Chloro-3 (1H)-indazolacetate)
ACE5599
ACE5599
N-Chloroacetyl-2,6-diethylaniline
N-Chloroacetyl-2,6-diethylaniline
Ethylene glycol bis (trichloroacetate)
Ethylene glycol bis (trichloroacetate)
Presep(R) Diatomaceous Earth, Granular (Column Volume 15mL)
Presep(R) Diatomaceous Earth, Granular (Column Volume 15mL)
Presep(R) Diatomaceous Earth, Granular (Column Volume 6ml)
Presep(R) Diatomaceous Earth, Granular (Column Volume 6ml)
USP Solution Acetate Buffer TS Conforms to USP 34
USP Solution Acetate Buffer TS Conforms to USP 34
USP Solution Acetate Buffer TS Conforms to USP 34
USP Solution Acetate Buffer TS Conforms to USP 34
USP Solution Acetic Acid 2.00 Normal Conforms to USP 34
USP Solution Acetic Acid 2.00 Normal Conforms to USP 34
USP Solution Acetic Acid 2.00 Normal Conforms to USP 34
USP Solution Acetic Acid 2.00 Normal Conforms to USP 34
USP Solution Acetic Acid-Ammonium Acetate Buffer TS Conforms to USP 34
USP Solution Acetic Acid-Ammonium Acetate Buffer TS Conforms to USP 34
USP Solution Acetic Acid-Ammonium Acetate Buffer TS Conforms to USP 34
USP Solution Acetic Acid-Ammonium Acetate Buffer TS Conforms to USP 34
USP Solution Cupric Acetate TS Conforms to USP 34
USP Solution Cupric Acetate TS Conforms to USP 34
USP Solution Cupric Acetate TS Conforms to USP 34
USP Solution Cupric Acetate TS Conforms to USP 34
USP Solution Lead Acetate TS Conforms to USP 34
USP Solution Lead Acetate TS Conforms to USP 34
USP Solution Lead Acetate TS Conforms to USP 34
USP Solution Lead Acetate TS Conforms to USP 34
USP Solution Potassium Acetate TS Conforms to USP 34
USP Solution Potassium Acetate TS Conforms to USP 34
USP Solution Potassium Acetate TS Conforms to USP 34
USP Solution Potassium Acetate TS Conforms to USP 34
USP Solution Sodium Acetate TS Conforms to USP 34
USP Solution Sodium Acetate TS Conforms to USP 34
USP Solution Sodium Acetate TS Conforms to USP 34
USP Solution Sodium Acetate TS Conforms to USP 34
European Pharmacopoeia Reagent Acetic anhydride Solution R1
European Pharmacopoeia Reagent Acetic anhydride Solution R1
European Pharmacopoeia Reagent Lead acetate cotton
European Pharmacopoeia Reagent Lead acetate cotton
European Pharmacopoeia Reagent Lead acetate paper
European Pharmacopoeia Reagent Lead acetate paper
European Pharmacopeoia Lead Acetate Solution
European Pharmacopeoia Lead Acetate Solution
European Pharmacopoeia Reagent Methoxyphenylacetic reagent
European Pharmacopoeia Reagent Methoxyphenylacetic reagent
European Pharmacopoeia Reagent Thioacetamide Solution
European Pharmacopoeia Reagent Thioacetamide Solution
European Pharmacopoeia Reagent Zinc acetate Solution
European Pharmacopoeia Reagent Zinc acetate Solution
European Pharmacopoeia Reagent Buffered acetone Solution
European Pharmacopoeia Reagent Buffered acetone Solution
European Pharmacopoeia Reagent Acetate Buffer Solution PH4.6
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6-Acetylcodeine,1.0mg/mL 于乙腈
6-Acetylcodeine,1.0mg/mL 于乙腈
Acesulfame potassium impurity B
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Trace Elements in Water 标准物质
Trace Elements in Water 标准物质
Androsterone 3-acetate,certified
Androsterone 3-acetate,certified
Corticosterone-21-acetate
Corticosterone-21-acetate