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已读[137] 发布: 2013/06/01 01:40:59
Gainesville Sun His expertise in heterocyclic compounds -- which form the basis of many anti-cancer and anti-viral pharmaceuticals, as well as antibiotics and vitamins -- has led Katritzky over the years to publish more than 2,000 articles. He has also edited about ... and more »
已读[298] 发布: 2013/06/01 01:28:31
Phys.Org The new approach uses a family of chemicals called carbenes to attach other substances to gold—and potentially to other material surfaces as well. The work, led by assistant professor of chemistry Jeremiah Johnson, has been published in the Journal of ... and more »
已读[195] 发布: 2013/05/31 15:39:48
复习时,原理、知识 点、反应式多而繁,在考试时有机合成、完成反应式的考察题目考生反应较难,所以在复习的时候切勿死记硬背。深刻理解各种反应的原理,找到反应的...
已读[206] 发布: 2013/05/28 14:34:12
吡啶是目前杂环化合物中应用范围最为广泛的品种之一,在农药、医药、染料、日用化工、香料、饲料添加剂等诸多领域中都有广泛的用途。吡啶为安徽国星和南京生化的主要...
已读[329] 发布: 2013/05/27 13:29:01
中国证券网讯(记者 严洲)商务部网站5月27日消息,日前,商务部正式发布立案公告,决定对原产于印度和日本的进口吡啶进行反倾销立案调查。公告表示,自2013年5月28日起,...
已读[129] 发布: 2013/05/26 20:35:17
StandardNet First, research shows that high heat grilling can convert proteins in red meat, pork, poultry and fish into heterocyclic amines. These are ... “That's where the main cancer-causing compound occurs in grilling,” said Stacy Kennedy, a nutritionist at the ... and more »
已读[201] 发布: 2013/05/25 16:04:11
他汀类药物是常用的心血病类药物,洛伐他汀是红曲霉菌的代谢产物,能显著抑制体内胆固醇的合成[[12]];另外,细胞表面的特异性低密度脂蛋白 (LDL)受体合成率与细胞内...
已读[154] 发布: 2013/05/24 20:43:16
有研究表明,厨房油烟中的有害物质超过300种,其中主要是醛、酮、烃、脂肪酸、醇、芳香族化合物、酮、内酯、杂环化合物等,这些有害物质具有肺脏毒性、免疫毒性、...
已读[379] 发布: 2013/05/24 20:38:57
Targeted News Service (subscription) This compound exhibits significant vitamin D receptor binding activity and transcription activity as well as pronounced activity in arresting the proliferation of undifferentiated cells and inducing their differentiation to the monocyte thus evidencing ... and more »
已读[167] 发布: 2013/05/24 20:37:26
The Suburban Newspaper Barbecuing meats at high temperatures can change the chemical structure of food and form two potential toxic compounds such as Heterocyclic amines (HCAs) and Polycyclic aromatic hydrocarbons (PAH's). PAH is a chemical that is formed during the ...
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