Product Description
Advanced BioMatrix offers PhotoCol®, a purified methacrylated Type I bovine collagen kit. PhotoCol® provides native-like 3D collagen gels with the unique attributes to be prepared at various concentrations and crosslinked to provide various gel stiffness.
The PhotoCol® kit consists of purified methacrylated Type I bovine collagen as the core component with other support reagents in the kit. Table 1 provides a list of the kit components.
Table 1:
| Item | Catalog Number | Package Size | Storage Temperature |
| Methacrylated Collagen | #5198 | 100 mg | 2-10°C |
| 20 mM Acetic Acid | #5079 | 50 mL | 2-30°C |
| Neutralization Solution | #5205 | 10 mL | Room Temperature |
| Irgacure Photoinitiator | #5200 | 100 mg | 2-10°C |
The methacrylated Type I collagen is produced from telo-peptide intact bovine collagen where the collagen has been modified by reacting the free amines, primarily the ε-amines groups of the lysine residues as well as the a-amines groups on theN-termini. > 20% of the total lysine residues of the collagen molecule have been methacrylated. The collagen is extracted from bovine hide and contains a high monomer content.
The collagen starting material was isolated from a closed herd and purified using controlled manufacturing processes.A bottle of 20 mM acetic acid solution is provided to solubilize the lyophilized methacrylated collagen at concentrations ranging from 3 to 8 mg/ml. The neutralization solution consists of an alkaline 10X phosphate buffered saline (PBS) solution which provides physiological salts and pH in the final mixture. The photoinitiator consists of Irgacure 2959 to be formulated in methanol (methanol not included) which allows UV crosslinking of the collagen at 365 nm.
| Parameter, Testing, and Method | Methacrylated Collagen#5198 |
| Sterilization Method | Filtration |
| Extraction Method | Acid - Telocollagen |
| Form | Lyophilized Powder |
| Degree of Methacrylation | >20% |
| Package Size | 100 mg |
| Shelf Life | Minimum of 6 months from date of receipt |
| Shelf Life After Reconstitution | 2 Months |
Collagen Purity - Silver Staining | >99% |
| Kinetic Gel Test (Minutes) | <40 |
| Gel Formation Tube Test (Minutes) | < 40 |
Electrophoretic Pattern - Coomassie Blue | Characteristic |
| Sterility - USP modified | No growth |
| Endotoxin - LAL | <10.0 EU/mL |
| Source | Bovine Hide |
| Hydrogel Young's Modulus E (Pa) | Characteristic |
Directions for Use
Download the full Directions for Use PDF
Product Applications
PhotoCol®Methacrylated Collagen is a photocrosslinkable type I collagen for 3D cell culture and bioprinting.
As the most abundant protein in the body, collagen is a key component for cell culture. Collagen methacrylate can be used as a rapidly self-assembling type I collagen to form cross-linked hydrogels for tissue engineering[1]. It has been used with mesenchymal stem cells[2], fibroblasts, adipose derived stem cells, epithelial cells, and many more.
Collagen methacrylate is useful for forming scaffolds with varying degree of stiffness, by altering collagen concentration or the dose of UV-light exposure[2]. It is also being extensively characterized for its usefulness in 3D bioprinting (extrusion, inkjet, and photolithographic[3]).
PhotoCol® has been used for created 3D microniches[4], as well as for 3D bioprinting human corneas[5].
References:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4172302/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4243547/
http://www.worldscientific.com/doi/abs/10.1142/S2339547817500091
https://onlinelibrary.wiley.com/doi/abs/10.1002/adbi.201700237
https://www.ncbi.nlm.nih.gov/pubmed/29772228
Product References
References for PhotoCol®:
Isaacson, A., Swioklo, S. & Connon, C. J. 3D bioprinting of a corneal stroma equivalent.Experimental Eye Research173,188–193 (2018).
Kathryn E. Drzewiecki et al, A thermoreversible, photocrosslinkable collagen bio-ink for free-form fabrication of scaffolds for regenerative medicine,TECHNOLOGY(2017).
Drzewiecki, K. E.et al.Methacrylation Induces Rapid, Temperature-Dependent, Reversible Self-Assembly of Type-I Collagen.Langmuir30,11204–11211 (2014).
Gaudet, I. D. & Shreiber, D. I. Characterization of Methacrylated Type-I Collagen as a Dynamic, Photoactive Hydrogel.Biointerphases7,25 (2012).
Izadifar, Mohammad, et al. "UV-assisted 3D bioprinting of nanoreinforced hybrid cardiac patch for myocardial tissue engineering."Tissue Engineering Part C: Methods24.2 (2018): 74-88.
Stoecklin, Celine, et al. "A New Approach to Design Artificial 3D Microniches with Combined Chemical, Topographical, and Rheological Cues."Advanced Biosystems(2018): 1700237.
Mazzocchi, Andrea, et al. "Optimization of collagen type I-hyaluronan hybrid bioink for 3D bioprinted liver microenvironments."Biofabrication(2018).
Nguyen, T. U., Watkins, K. E. & Kishore, V. Photochemically crosslinked cell‐laden methacrylated collagen hydrogels with high cell viability and functionality.Journal of Biomedical Materials Research Part A107,1541–1550 (2019).
Mazzocchi, A.et al.Pleural Effusion Aspirate for Use in 3D Lung Cancer Modeling and Chemotherapy Screening.ACS Biomaterials Science & Engineering5,1937–1943 (2019).
Chhetri, A.et al.Cell Culture and Coculture for Oncological Research in Appropriate Microenvironments.Current Protocols in Chemical Biology11,(2019).
Product Certificate of Analysis
Product Videos
How to Make 3D Collagen Hydrogels
Video
Telo vs Atelo Collagen
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Neutralization Solution for Easy 3D Collagen Gels
Video
Seeding Collagen Gels with Cells
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4 Key Components for 3D Collagen Gels
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Safety and Documentation
Safety Data Sheet
Certificate of Origin
Declaration of Material Source
Product Disclaimer
This product is for R&D use only and is not intended for human or other uses. Please consult the Material Safety Data Sheet for information regarding hazards and safe handling practices.
美国AdvancedBioMatrix（简称ABM） www.advancedbiomatrix.comAdvancedBioMatrix（简称ABM）是美国一家著名的生物公司，获得了AllerganInc的授权(Allergan用25年时间不断完善胶原蛋白相关的产品的生产工艺)，将Allergan的专业和技术用于蛋白生产与检测，致力于为组织工程、细胞分析及细胞增殖等研究领域提供优质稳定的产品。AdvancedBioMatrix不断丰富已有产品线，目前可为三维细胞培养提供各种胶原蛋白、纤连蛋白、玻连蛋白、水性凝胶、不同粘度与分子量的透明质酸以及低代成纤维细胞等。在美国全部产品授权Sigma销售。AdvancedBioMatrix是组织培养，细胞分析和细胞增殖三维（3D）应用的生命科学领域的领导者。我们的产品被公认为纯度，功能性和一致性的标准。我们在生产，分离，纯化，冷冻干燥，细胞培养和蛋白质测试，粘附肽，附着因子，底物刚性和其他3D矩阵产品方面拥有丰富的专业知识。我们的专业技术和知识正在被用来确保我们的产品质量最高，批次之间一致且易于为我们的研究客户使用。
美国AdvancedBioMatrix是3D组织培养、细胞检测和细胞增殖等领域实验解决方案的佼佼者。AdvancedBioMatrix在分离、纯化、冻干、细胞培养和蛋白检测、多肽粘附、附着因子、基质硬度和其他3Dmatrix 产品开发方面有着丰富的经验。AdvancedBioMatrix的研发经验和专业知识确保其产品可达到最佳质量，并保证产品之间一致性，方便研究客户使用。以下为AdvancedBioMatrix3DMatrices 产品竞争优势：1. 提供高纯度和成分确定的胞外基质；2. 超过1000余篇文献引用PureCol产品，品质非常均一；3. 在3D培养基领域可提供最全面的产品线；4. 唯一可提供特异性刚性有机硅基板的公司（CytoSoft）;5. 唯一可提供可溶性丝纤蛋白的供应商（可运用于多种3D培养）；6. 如果客户首次接触3D胶原凝胶，AdvancedBioMatrix还是唯一的预制胶原蛋白(PureColEZGel)供应商；
以下产品为AdvancedBioMatrix全球畅销品：1.PureCol 牛源I型胶原蛋白 3mg/ml#5005-100ML2.Nutragen牛源I型胶原蛋白 6mg/ml#5010-50ML3.FibriCol 牛源I型胶原蛋白 10mg/ml#5133-20ML4.VitroCol 人源I型胶原蛋白 #5007-20ML5. 弹性蛋白原 #5052-1MG6.ECMSelectArraykitUltra-36#5170-1EA7.CytoSoft（刚性可变的基底，AdvancedBioMatrix最新添加产品5190-7EA）8. 人III型胶原蛋白 #5021-10MG9. 人IV型胶原蛋白 #5022-5MG10.SilkFibroin溶液 #5154-20ML11.Fibronectin#5080-5MG12.Vitronectin#5051-0.1MG
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逆转录（reverse transcription）是以RNA为模板合成DNA的过程，即RNA指导下的DNA合成。此过程中，核酸合成与转录（DNA到RNA）过程与遗传信息的流动方向（RNA到DNA）相反，故称为逆转录。逆转录过程是RNA病毒的复制形式之一，需逆转录酶的催化。 逆转录过程的揭示是分子生物学研究中的重大发现，是对中心法则的重要修正和补充。人们通过体外模拟该过程，以样本中提取的mRNA为模板，在逆转录酶的作用下，合成出互补的cDNA，构建cDNA文库，并从中筛选特异的目的基因。该方法已成为基因工程技术中最常用的获得目的基因的策略之一。
