Generation of suturable artificial cornea from the integration of exfoliated graphene with gelatin glycidyl methacrylate
通过剥离石墨烯与明胶甲基丙烯酸缩水甘油酯的整合生成可缝合的人工角膜
基本信息
- 批准号:9976013
- 负责人:
- 金额:$ 10.27万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-04-01 至 2022-03-31
- 项目状态:已结题
- 来源:
- 关键词:3-DimensionalAdhesivesAnatomyAnimal ModelAnimalsArchitectureArtificial ImplantsAutomobile DrivingAwardBiocompatible MaterialsBiologicalBiomechanicsBiomedical EngineeringBiomimeticsBlindnessCell CommunicationCell Differentiation processCell ProliferationCellsCharacteristicsClinicalCommunitiesComplementCorneaCultured CellsData AnalysesDevelopmentDifferentiation and GrowthDiffusionDonor personEndothelial CellsEndotheliumEngineeringEpithelialEpitheliumExtracellular MatrixEyeFibroblastsFunctional disorderFundingGelatinGenerationsGlucoseGluesGoalsGrantHumanHybridsHydrogelsImmune responseIn VitroInfectionKeratoplastyLaboratoriesLeadManuscriptsMechanicsMembraneMentorsMicrospheresMolecularMolecular and Cellular BiologyNatural graphiteNatureNerve RegenerationNormal CellOperative Surgical ProceduresOrganic solvent productOryctolagus cuniculusOxygenPatientsPatternPhasePolymersPostoperative CareProcessPropertyProteinsQuality of lifeResearchResearch ProposalsScientistSolubilitySolventsStressStromal CellsStructureSupporting CellSurgical suturesSystemTechniquesTissue EngineeringTissue PreservationTissuesTrainingTransplantationTreatment CostUnited States National Institutes of HealthWritingXenograft procedureaqueousbasebiomaterial compatibilityblindcareercell motilitycell stromachemical propertycrosslinkdesignexperimental studyfaculty researchfallsglycidyl methacrylategraphenehealingimplantationimprovedin vivoin vivo Modelinfancyleadership developmentmaterials sciencemechanical propertiesmigrationmultidisciplinarynanonotch proteinpreservationscaffoldskillsstemsuccessthree-dimensional modeling
项目摘要
PROJECT SUMMARY
In this project, we propose to design a hybrid scaffold from the integration of gelatin glycidyl methacrylate
(GELGYM) with exfoliated pristine graphene (EG), accompanied by double crosslinking technique, that can
function as a suturable artificial cornea. We will determine (1) whether hybrid GELGYM membranes acts as a
biocompatible artificial cornea that supports cell growth and differentiation;; and (2) the capability of the hybrid
scaffold to function as a corneal substitute. The differentiation and biocompatibility studies proposed here will
offer quantitative information on the degree of biointegration of the hybrid scaffold in contact with the host’s
corneal cells and extracellular matrix under in vitro and in vivo conditions.
We expect that exfoliation of graphene, its integration in the GELGYM hydrogel architecture and subsequent
double crosslinking can create an nano-microspherical cavities in the hydrogel microstructure covered with the
graphene create anchoring points that can withstand against tearing, after applying the physical stress to the
suture passing the construct. This can diminish the tendency to form notches during suturing, while enhancing
mechanical properties of the construct and facilitate its implantation in patients. Moreover, we expect
integration will further promote cell proliferation and differentiation of corneal cells, allowing for the appropriate
diffusion of glucose and oxygen. Additionally, I anticipate that integration of exfoliated graphene will positively
regulate epithelial-stromal and endothelial stromal cell interactions. The success of this approach can reduce
or eliminate the need for donor corneas and positively impact the quality of life for many patients.
The research aims are supported by a training plan focused on the acquisition of relevant multidisciplinary
expertise in the fields of cellular and molecular biology, pathophysiology, tissue-engineering and material
science. To this end, a “Mentoring Team” which includes the leading mentor, Dr. Chodosh, along with two co-
mentors: Dr. Gonzalez and Dr. Kong has been assembled. Moreover, Dr. Paschalis as an independent
collaborator will support on technical training on animal handling, surgery, and postoperative care along with
data analysis and interpretation of animal findings following implantation of the scaffold into rabbit eyes.
This group of mentors will guide me during the K99 mentored phase to achieve my long-term career goal of
becoming a scientist-leader in my field with a strong independent laboratory. I envision that this award will
provide me with an excellent platform from which to have a successful transition to independent research
faculty status (this includes the transition into the R00 phase of the award) and in the long term, to productively
compete for independent NIH (R01) funding. My training will also be complemented by courses during the
mentored phase in the improvement of presentation and writing skills (grants and manuscripts), manuscript
review, mentoring, and development of leadership abilities and laboratory management skills.
项目摘要
在这个项目中,我们建议设计一种融合明胶甲基丙烯酸缩水甘油酯的混合支架
(GELGYM) 与剥离的原始石墨烯 (EG),并辅以双交联技术,可以
用作可缝合的人造角膜。 我们将确定 (1) 混合 GELGYM 膜是否充当
支持细胞生长和分化的生物相容性人工角膜;以及 (2) 混合体的能力
支架作为角膜替代品。 这里提出的分化和生物相容性研究将
提供有关与宿主接触的混合支架的生物整合程度的定量信息
体外和体内条件下的角膜细胞和细胞外基质。
我们预计石墨烯的剥离、其在 GELGYM 水凝胶结构中的整合以及随后的
双交联可以在水凝胶微结构中产生纳米微球空腔,并覆盖有
在对石墨烯施加物理压力后,石墨烯会产生能够抵抗撕裂的锚定点
缝合线穿过结构。 这可以减少缝合过程中形成凹口的倾向,同时增强
该结构的机械性能并有利于其植入患者体内。 此外,我们预计
整合将进一步促进角膜细胞的细胞增殖和分化,从而允许适当的
葡萄糖和氧气的扩散。 此外,我预计剥离石墨烯的整合将积极
调节上皮基质细胞和内皮基质细胞相互作用。 这种方法的成功可以减少
或者消除对捐赠角膜的需求,并对许多患者的生活质量产生积极影响。
研究目标得到培训计划的支持,该计划侧重于获得相关的多学科知识
细胞和分子生物学、病理生理学、组织工程和材料领域的专业知识
科学。 为此,成立了一个“指导团队”,其中包括首席导师 Chodosh 博士以及两名辅助导师
导师:Gonzalez 博士和 Kong 博士已经集合。 此外,Paschalis 博士作为一名独立的
合作者将支持动物处理、手术和术后护理方面的技术培训
将支架植入兔眼后对动物发现进行数据分析和解释。
这群导师将在 K99 指导阶段指导我实现我的长期职业目标
成为我所在领域的科学家领导者,拥有强大的独立实验室。 我预计这个奖项将
为我提供了一个优秀的平台,使我能够成功过渡到独立研究
教师地位(这包括过渡到奖项的 R00 阶段),从长远来看,要富有成效
竞争独立的 NIH (R01) 资金。 我的培训也将通过期间的课程得到补充
在提高演讲和写作技能(赠款和手稿)、手稿的指导阶段
审查、指导和发展领导能力和实验室管理技能。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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{{ truncateString('Sina SHARIFI', 18)}}的其他基金
Generation of suturable artificial cornea from the integration of exfoliated graphene with gelatin glycidyl methacrylate
通过剥离石墨烯与明胶甲基丙烯酸缩水甘油酯的整合生成可缝合的人工角膜
- 批准号:
10547894 - 财政年份:2022
- 资助金额:
$ 10.27万 - 项目类别:
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