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关于举行加拿大不列颠哥伦比亚大学Orlando J. Rojas教授团队和中国科学院过程工程研究所卢翊研究员学术报告会的通知

发布时间:2025-11-17 访问次数:13

  一、会议日程

  报告时间:2025年11月22日

  报告地点:华南理工大学五山校区

  邀请人:徐峻,教授级高级工程师

  主办单位:华南理工大学轻工科学与工程学院、先进造纸与纸基材料全国重点实验室

  二、报告及报告人简介

  报告人:Orlando J. Rojas 教授

  报告时间:2025年11月22日上午9:00-10:00

  报告地点:华南理工大学五山校区造纸A楼702会议室

  报告题目:Renewable Nanoparticles for Sustainable Water-Based Adhesives

  报告摘要:

  We demonstrate proteins as compatibilizers and eco-friendly dispersant of renewable nanoparticles, including cellulose nanofibrils and nanocrystals which promote contact adhesion. Along with other nanoparticles based on chitin, a range of possibilities is unveiled to demonstrate the generic effect of the self-assembly of the particles toward high noncovalent adhesive shear strength. The adhesion develops following evaporation-induced self-assembly during gel-to-solid transition, leading to multiscaled and ordered superstructured lamellae. The reversible assembly of the adhesive is highlighted for its potential in reducing damage in high-strength but brittle construction elements. The results point to the role of the high axial aspect nanoparticles, ultimately acting as key component of systems similar to the bioadhesives found in nature that utilize high order and hierarchical assemblies. A further extension of the work considered the interfacial interactions between nanochitin and proteins (BSA, lysozyme in polymeric and amyloid forms), which act as bio-cements with remarkable properties. The results are rationalized in the context of current efforts to standardize the measurement of adhesive strength and bond formation. Overall, the proposed biobased systems are expected to expand current developments in the design of fully green, cost-effective, and aqueous-based adhesives.

  报告人简介:

  Orlando Rojas教授是加拿大不列颠哥伦比亚大学 (UBC)生物产品卓越研究主席兼生物质产品研究所所长。他致力于生物质材料研究,协同开展跨学科研究的生态系统,创造从农林资源到生物精炼技术的基础知识和应用。

  Rojas教授曾荣获安塞尔姆·佩恩奖 (Anselme Payen Award),该奖项是纤维素和可再生材料领域的最高奖项。他还当选为美国化学学会会士 (2013)、芬兰科学与文学院院士(2017),并荣获 TAPPI纳米技术奖 (2015)。Rojas教授同时担任Marcus Wallenberg基金会遴选委员会评审委员,以及TAPPI国际研究管理委员会成员,担任包括马克斯·普朗克胶体与界面研究所等多家机构和公司科学顾问。

  在其职业生涯中,Rojas教授共计指导了55名博士后研究员、65名博士生和50名硕士生。他还接待了112名国际访问学者。Rojas教授累计发表了约600篇论文,H指数为101,引用次数达46,000次 (Google Scholar)。在2022-2024年间,Rojas教授引用次数位列全球前1% (科睿唯安、Web of Science)。

  报告人:Lukas Alexander Bauman 研究员

  报告时间:2025年11月22日上午10:00-10:30

  报告地点:华南理工大学五山校区造纸A楼702会议室

  报告题目:Tapping Nature’s Reservoirs: Biomass Pathways to Functional Materials

  报告摘要:

  Reducing the environmental impact of the chemical industry requires a shift toward renewable, functional materials that align with circular economy principles and global sustainability goals. Forests and oceans offer abundant sources of structurally and chemically diverse biopolymer such as cellulose, chitosan, alginate, lignin, and tannins. These materials can be transformed into high-performance materials for advanced manufacturing and environmental remediation. This seminar explores how such natural building blocks can be re-engineered for modern applications through three interconnected themes.

  The first focuses on the use of biomaterials as functional crosslinkers for UV-curable hydrogels, enabling the development of 3D printable networks for biomedical applications. The second explores how surface-functionalized biobased nanoparticles can stabilize emulsions and enable novel liquid-in-liquid 3D printing strategies, generating conductive filaments and dynamic structures. The third highlights the use of bio-derived scaffolds for sorbent materials and aerogels capable of water harvesting and pollutant removal.

  Together, these projects demonstrate a materials-by-design approach using renewable resources to replace fossil-based systems, while offering new pathways for responsive, reprocessable, and environmentally beneficial technologies.

  报告人简介:

  Lukas Bauman研究员在加拿大西安大略大学获得化学工程学士学位,并在那里开启了他的研究生涯,致力于开发用于农业智能肥料释放的刺激响应型自毁聚合物。随后,他前往滑铁卢大学攻读研究生,专注于热响应型聚合物及其在先进3D打印系统中的应用。攻读博士学位期间,Lukas研究员将研究拓展至个性化医疗保健领域,开发用于热响应型药物输送和皮肤粘附型生物医学设备的材料。

  随着对这些智能材料系统的不断改进,Lukas研究员越来越多地将生物基成分融入到他的研究中,这促使他前往不列颠哥伦比亚大学生物制品研究所(BiCMat)进行访问研究。BiCMat高度协作的氛围和紧密的研究方向激励他继续留在那里从事博士后研究。

  在Rojas教授课题组,Lukas研究员拓展了他的材料专业知识,涵盖了一系列可持续的生物基系统,包括单宁-纤维素水过滤材料、木质素基弹性体和先进的生物纳米材料。他的研究工作涵盖生物聚合物的化学改性、聚合物合成、生物纳米材料加工,以及新兴的、以生物基纳米材料为基础的结构化液体和胶体系统的研究。

  报告人:卢翊 研究员

  报告时间:2025年11月22日上午10:30-11:00

  报告地点:华南理工大学五山校区造纸A楼702会议室

  报告题目:Biobased Colloids and Biomimetic Design(生物质胶体动态仿生设计)

  报告摘要:

  Biomass materials possess inherent advantages in the development of biomimetic materials and offer an essential pathway for achieving high-value utilization of biomass. However, the intrinsically complex structure of biomass nanomaterials impedes precise structural manipulation, material performance optimization, and the further development of high-value applications. To address these challenges, we highlight recent advancements in biomass technology through colloidal control, particularly by utilizing interfacial confinement environments to manipulate biomass materials and enable dynamic, biomimetic functionalization precisely. This presentation will cover two interfacial regulation strategies for biomass materials. The first involves the precise control of electrostatic assembly of nanocellulose and nanochitin at the aqueous two-phase interface, enabling the on-demand construction of advanced functions such as selective mass transfer, controllable sub-surface migration, and liquid-in-liquid 3D printing. Collectively, we establish a microcapsule reactor system characterized by self-migration, self-initiation, and self-termination. In the second strategy, living microorganisms are regulated at the water-oil interface to synthesize cellulose, leveraging the continuous mass transfer properties of the two-phase system to enable multiphase biomanufacturing. This approach facilitates the convenient and efficient construction of multilayer hydrogels, porous materials, and core-shell microcapsule structures. Such dynamic biomimetic strategies for biomass provide new theoretical directions and technical pathways for developing green new material systems that combine high conversion efficiency with high added value.

  报告人简介:

  卢翊,中国科学院过程工程研究所研究员、博士生导师,为杨超研究员、所长团队成员。2025年入选中科院过程所“百人计划(过程杰青)”,主要致力于生物质基多相体系构筑研究,并探索其绿色化工应用。2020年博士毕业于加拿大阿尔伯塔大学,师从徐政和院士。随后,在加拿大不列颠属哥伦比亚大学(UBC)Orlando J. Rojas教授课题组从事博士后研究工作,担任微纳材料及多相体系研究小组组长。在Chemical Society Reviews、Nature Communications、Advanced Materials、ACS Nano、AIChE Journal等顶级期刊上发表论文63篇,授权美国专利1项。任The Innovation Materials、Green Carbon、《中国化学工程学报(英)》(CJChE)等多个期刊编委。

  报告人:时雪彤 研究员

  报告时间:2025年11月22日下午14:30-15:00

  报告地点:华南理工大学五山校区造纸D楼306会议室

  报告题目:Sustainable Energy Solutions Through Physically and Chemically Modified Wood

  报告摘要:

  As the world moves toward sustainable energy solutions, the need for materials that unite high performance with environmental responsibility becomes increasingly urgent. We investigated recent advances in transforming wood, a renewable and carbon-sequestering resource, into a multifunctional platform for energy storage, conversion, and harvesting. By tailoring wood’s structure and chemistry through physical and chemical modifications, we unlock its unique hierarchical architecture and tunable porosity to create materials that rival conventional synthetic alternatives. The presentation will summarize four core innovations, illustrating a stepwise progression from thermal management to energy harvesting, solar thermal energy storage, and finally integrated photothermal systems. Together, these examples outline a sustainable and bioinspired framework for designing functional wood-based materials that contribute to carbon-negative and circular energy technologies.

  报告人简介:

  时雪彤博士于2015年在北京林业大学木材科学与工程专业获得学士学位;2017年至2019年间,在瑞典皇家理工学院(KTH)与阿尔托大学(Aalto University)攻读高分子科学,获硕士学位,师从Orlando Rojas教授。随后在英属哥伦比亚大学(UBC)化学与生物工程系继续在Rojas教授指导下攻读博士学位,于2025年获得博士学位。主要研究方向为木材改性与多功能木材应用,在包括Advanced Functional Materials、ACS Nano及Nature Communications在内的期刊上发表多篇研究论文。目前,时雪彤博士在英属哥伦比亚大学从事博士后研究,专注于秸秆等生物质材料的化学处理与综合利用技术。

  报告人:舒心 博士

  报告时间:2025年11月22日下午15:00-15:30

  报告地点:华南理工大学五山校区造纸D楼306会议室

  报告题目:Aerotaxis-driven biofabrication of sandwich-like nanocellulose structure for flexible supercapacitor

  报告摘要:

  Cellulose can be produced by aerobic bacteria (e.g., Komagataeibacter medellinensis) at air-liquid interfaces, known as bacterial nanocellulose (BNC). However, pristine BNC biofilms lack distinct structural features at microscopic and macroscopic scales. This arises from the inherently chaotic locomotion of bacteria, which limits their capabilities in structuring high-performance material architectures. Herein, we introduce a one-step biofabrication strategy for the formation of three-dimensional, sandwich-like BNC hydrogels that are designed as scaffolds for supercapacitors. The multilayer and spatial distribution of BNC nanofibers are directed by bacterial aerotaxis in response to available oxygen interfaces. A layer of dense, biocompatible, and oxygen-permeable organic phase (i.e., hydrofluoroether) is introduced underneath an aqueous culture medium to promote a vertical gradient, guiding microbial movements and promoting the formation of BNC layers with differentiated mass densities. This integrated, sandwich-like structure enables the development of a versatile and adaptive all-in-one supercapacitor, characterized by exceptional flexibility and mechanical durability as an energy storage device.

  报告人简介:

  舒心于2024年1月加入BiCMat课题组,攻读化学与生物工程博士学位。她本科和硕士学位均毕业于中国农业大学食品科学与工程专业。在攻读博士学位之前,舒心致力于设计基于天然物质的胶体体系,例如纳米复合物、乳液和复合水凝胶,用于食品活性化合物的封装和递送。在Rojas教授课题组,她的研究方向是探索生物物质在胶体体系中的行为。她运用生物制造技术开发新型材料和结构,重点在于拓展细菌纤维素基材料在能源、生物医学以及食品/化妆品领域的应用潜力。