镀铜碳纳米管的抗菌性研究

用离子束辅助沉积(IBAD)方法在碳纳米管表面制备铜膜。用琼脂平板法测试了抗菌率,测试菌种为革兰氏阴性大肠杆菌(E.coil)和革兰氏阳性金黄色葡萄球菌(S.aureus);通过扫描电子显微镜(SEM)观察了镀铜碳纳米管的微观结构特征;X射线光电子能谱(XPS)分析了镀铜碳纳米管表面各元素的价态。结果表明,镀铜碳纳米管具有很好的抗菌性能,且其抗菌性能要比在硅片(100)上镀铜的样品强很多。     

多壁碳纳米管-环氧树脂纳米复合材料的γ-射线固化行为

通过γ-射线辐射固化制备了多壁碳纳米管-环氧树脂复合材料。采用索氏提取法、傅里叶变换红外光谱(FT-IR)和差示扫描量热法(DSC)测试了多壁碳纳米管环氧树脂复合体系的凝胶含量、转化率及热流曲线等固化动力学参数。采用扫描电子显微镜（SEM）表征了复合材料的微观组织。结果表明：通过γ-射线辐射固化的复合体系的凝胶含量随着辐射剂量、光引发剂含量的增加而增加;由于多壁碳纳米管对活性反应中心的影响,转化率随着多壁碳纳米管加入量的增加呈先下降,后增加的趋势。复合体系中多壁碳纳米管含量较高时易发生团聚,团聚会对复合体系的固化行为产生一定影响。     

催化剂对乙醇火焰燃烧制备碳纳米管的影响

采用乙醇火焰燃烧, 通过在镍基板上涂敷催化剂前驱体制备碳纳米管。借助扫描电子显微镜、透射电子显微镜、XRD和拉曼光谱等分析了不同催化剂对碳纳米管形貌及结构的影响。结果表明：在乙醇火焰中,对碳纳米管生成起催化作用的是金属氧化物纳米粒子,其催化活性的顺序为：氧化镍>氧化铬>氧化钼>氧化钴。催化剂不仅影响碳纳米管的生长速率,而且碳纳米管的直径和管壁的石墨结晶状态也随催化剂的不同而不同。     

电子显微镜曝光测量仪的研制

电子显微镜曝光测量仪的研制姜少军，李向民（电镜室物理教研室，２５６６０３）我院购置的ＪＤＸ－４型透射式电子显微镜，由于缺少曝光测量功能，拍摄电镜照片只能凭经验确定曝光量，难以保证拍摄效果。有报道采用普通照像用的曝光表进行测量，因曝光表的灵敏度较低，使...     

不同形貌Cu-Ag双金属粉的制备及性能

在高分子保护剂存在下采用铜粉置换法制备了树枝形、六边形等不同形貌的超细铜－银双金属粉，探讨了该粉体的制备工艺条件，并用透射电子显微镜、激光粒度仪、X射线粉末衍射仪对粉体进行了表征，用热重法测定了粉体的抗氧化性，用标准的抗菌测试方法测定了双金属粉的抗菌性能，结果表明，双金属粉具有良好的抗氧化性、抗菌性。     

碳纳米管/聚丙烯腈原液的制备及可纺性

通过原位聚合的方法制备了碳纳米管／聚丙烯腈复合材料原液，并采用湿纺成型工艺制得碳纳米管／聚丙烯腈复合材料纤维。与共混工艺相比较，采用该方法制得的碳纳米管／聚丙烯腈复合材料碳纳米管在聚丙烯腈基中分散均匀，具有较好的可纺性。     

聚(2,5-苯并噁唑)/多壁碳纳米管复合材料的制备与性能

采用强氧化性酸处理多壁碳纳米管(MWNTs),形成功能化的多壁碳纳米管(MWNTs-COOH)。用傅里叶红外光谱(FT-IR)对处理前后MWNTs的表面官能团进行了分析,并利用原位聚合法成功制备了聚(2,5-苯并噁唑)(ABPBO)/MWNTs-COOH纳米复合材料。结果表明:碳纳米管经过酸处理后,表面含有较多羰基和羟基极性官能团,在ABPBO基体中分散均匀;复合材料保持了ABPBO的优异耐高温性能,其力学性能和光物理性能也得到了很大的提高。     

盐酸维拉帕米微丸的制备

目的：制备盐酸维拉帕米微丸。方法：采用流化床法制备盐酸维拉帕米微丸，进行正交设计优化选择微丸制备条件，并对微丸体外溶出进行测定。结果：微丸制备最优条件为使用5％PVP作为粘合剂，流化床温度为28℃，药物溶出稳定，20min内溶出完全。结论：用流化床法制备盐酸维拉帕米微丸稳定性好。     

气相火焰中铁钴镍合金表面沉积碳纳米管及形态分析

利用甲烷在空气中扩散燃烧,以铁钴镍合金片为载体和催化剂合成了碳纳米管,借助扫描电子显微镜、透射电子显微镜和拉曼光谱等分析了碳纳米管的形貌和结构。在合金表面成功沉积了碳纳米管,其外径为8~10 nm,内径为3 nm,长度约为15μm,密度大且分布均匀。研究表明:与纯镍片相比,铁钴镍合金具有更好的催化效果。     

改良浸沾法涂布Hw-4乳胶的电镜放射自显影技术

电子显微镜与放射自显影相结合的电镜放射自显影技术(EM—ARG),是直接研究细胞超微结构与生理功能相互关系的重要方法。由于电镜性能的限制,只能使用低能β放射性核素,因此单分子层乳胶膜制备的成功与否是EM—ARG成败的关键之一。为此人们创立了滴加法、浸沾法、平基法、环套法和喷涂法等多种制膜方法。但各厂家生产的乳胶物理性能不一,国内有报道用Hw-4以改良平基法制备出单分子层乳胶膜。笔者采用的是改良浸沾法,具体     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.