美国Plant Cell Technology公司为商业及研究用植物组织培养实验室和植物种植者开发、生产了旗舰产品PPM™ (Plant Preservative Mixture)，它是一种广谱抗微生物剂，可以杀死细菌和真菌细胞，防止真菌孢子的萌发，并在较高浓度下能消除内源性污染的外植体。研究表明PPM™活性成分可以渗透过真菌或细菌细胞壁，抑制柠檬酸循环和电子传递链等中心代谢循环中的关键酶的活性，并且可以抑制培养基中的单糖和氨基酸向真菌和细菌细胞的运输。PPM™能有效地抑制植物细胞和植物组织培养中的通过空气、水、人传播的微生物污染及内源性污染，而不会影响体外种子发芽、愈伤组织增殖和愈伤组织的再生。并且，PPM™具有热稳定性，可以和培养基一起灭菌，同时比常用抗生素价更低廉，可以作为植物组织培养基的标准成分。

The principal PCT scientist involved in the development of the PPM™ application is Dr. Assaf Guri. Dr. Assaf Guri holds degrees in genetics, applied genetics and plant breeding from the Hebrew University in Jerusalem and Michigan State University in the US. Before joining Plant Cell Technology, Inc., Dr. Guri worked with the Volcani Agricultural Research Center in Israel, Michigan State University in East Lansing, Michigan and DNAP in New Jersey.

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艾美捷科技有限公司

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Cygnus Technologies是一家专为基因工程生物制药企业、疫苗生产企业、学术研究、生物制药研发部门和QA部门（品质保证部门）提供宿主细胞蛋白残留检测和生物制药工程中污染物的残留检测技术和产品的公司。美国Cygnus公司提供了种类广泛而灵敏度极高的一系列用于检测宿主蛋白残留物的HCP ELISA试剂盒和BC ELISA试剂盒等产品，

We offer a comprehensive menu of well-validated, convenient to use microtiter plate ELISA methods to detect Host Cell Proteins from specific recombinant expression systems and bioprocess contaminants used in culture media as well as transgenic expression systems in goats and cattle. We develop and routinely manufacture, by cGMP methods,  ELISA and Western Blot kits to contaminants specific to more than 50 different expression systems. Our extensive list of ancillary reagents is useful in developing and validating your product and process-specific assays.

Cygnus Technologies公司的主要产品包括：

ELISA Kits

DNA Detection

Western Blot Kits

Antibodies

Immunogenicity Analysis

Antigen Concentrates

Immunoassay Reagents

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艾美捷科技有限公司

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Affinity Biosciences成立于2006年，是一家开创性的生命科学和高科技公司，其生化产品和服务主要应用于生物技术，医学研究和药物开发。Affinity Biosciences致力于通过创新推动客户成功，在英国和美国建立了研发部门，旨在为全球提供卓越的服务。我们的客户包括科学家和技术人员在生命科学公司，大学和政府机构，医院和行业。为了强化对客户的承诺，提升服务水平，我们在中华人民共和国开设了包装和质量控制设施。我们的目标是开发重点是细胞信号转导研究的高质量抗体，包括Akt，AMPK，NF-KappaB，TGF-β等，以及抑制剂和相关试剂。

Founded in 2006, Affinity Biosciences is a pioneering Life Science and High-Tech company whose biochemical products and services are mainly applied in biotechnology, medical research and pharmaceutical development.

Dedicating to advancing customer success through innovation, Affinity Biosciences has established R&D affiliates in the United Kingdom and United States with the aim of providing outstanding service around the globe.Our customers include scientists and technologists in life science companies, university and government institutions, hospitals and industry. To underline our commitment to our customers and enhance our standards of service, we have opened packaging and quality control facilities in the People’s Republic of China. Our goal is to develop high-quality antibody that focuses on Cell Signaling Transduction research, including Akt,AMPK,NF-KappaB,TGF-beta,etc,as well as inhibitors and related reagents.

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艾美捷科技有限公司

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网站：www.amyjet.com