BBML

Biological and Biomimetic Materials Laboratory

Our Research

The Biological and Biomimetic Materials Laboratory (BBML) is guided by Prof. Ali Miserez. We study natural multifunctional materials that feature unique (or combination of) properties not achieved in man-made materials. Nature processes complex, tailored, structural materials, in an aqueous environment under ambient temperature and pressure (or less) using natural compounds. These naturally selected, time-tested biomaterials are recognized as powerful model systems, and their energy-efficient synthesis confers the motivation for our research. Understanding the underlying “green chemistry” can potentially offer sustainable alternatives to engineer existing as well as new materials. We endeavor to mimic these key structural, biochemical, and physicochemical principles that are discovered in the model systems and envision to overcome scientific challenges in diverse fields.

Research Approach

We discover and explore employing biomimetic-thinking methodologically using a multidisciplinary approach. Critical technological and scientific breakthroughs in the past allow us to brainstorm and study biological structures in a refined way. We identify and characterize proteins in the natural materials; recreate their synthetic analogs applying design strategies to emulate functional mimicries. For this, we accumulate creative ideas and techniques, adopted from:

Biochemistry: Protein identification, isolation, sequencing, recombinant protein expression.

Biophysics: Spectroscopy, X-ray diffraction, single-molecule force spectroscopy.

Material's characterization: Micro-nano structure, mechanical properties at various length scales, structure-process-property relationships.

Focus Areas

whelk egg to feature Bioelastomeric Membranes & Coiled-Coil Engineering

Bioelastomeric Membranes & Coiled-Coil Engineering

Bioelastomers in nature are fascinating materials because some of them own unique combinations of structural and physicochemical properties. In our lab, we explore the bioelastomers that derive their properties from coiled-coil proteins, such as the marine snail's egg capsules capable of effective dissipation of tidal energy.

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Mussels underwater to feature Mechanisms of Biofouling Adhesion & Anti-Adhesive Coating

Mechanisms of Biofouling Adhesion & Anti-Adhesive Coating

The projects focus to counter marine biofouling problems, which causes a significant economic and environmental impact. We understudy the adhesive proteins of marine foulers that drive the robust underwater adhesion. Efforts are also directed towards the development of methods to assess fouling and anti-adhesive coatings.

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Squid beak to feature Molecular Biomimetics of Non-Mineralized Hard Tissues

Molecular Biomimetics of Non-Mineralized Hard Tissues

Unlike hard tissues, nature also employs dense protein cross-linking, and/or formation of polysaccharide/protein complexes to impart strength and wear-resistance functionalities. Recognition of this novel paradigm offers for characterization, biomimetic synthesis of robust and biocompatible structural polymers with little or no mineral content.

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Mantis Shrimp to feature Biomineralized Structures with Graded/Modulated Properties

Biomineralized Structures with Graded/Modulated Properties

Projects explore biomineralized composites with unexpected inorganic materials that are assembled in a highly controlled manner exhibiting tailored functionalities. We also engage in developing in situ mechanical testing methods to reveal structure-properties relationships across multiple length scales.

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Coacervates with DOX fluorescence microscopy to feature Liquid Liquid Phase Separation

Liquid-Liquid Phase Separation

Liquid-liquid phase separation gives rise to fluidic droplets, which are found across multiple length scales of the biological media. By performing highly differentiated functions, these droplets act as dynamic “membraneless organelles” that allow the living system to rapidly assemble (and disassemble) molecular collectives and switch on –or turn off– new functionalities.

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Highlighted Papers

Fluid protein condensates for bio-inspired applications,Nature Reviews Bioengineering, 2023.

Squid suckerin microneedle arrays for tunable drug release, Journal of Materials Chemistry B, 2017.

Cross-linking Chemistry of Squid Beak, Journal of Biological Chemistry, 2010.

Team

With an interdisciplinary team and collaborations (local and international) we have access to comprehensive methods, specialized instruments, and skills for research advancement.

Prof. Ali Gilles Tchenguise Miserez

Principal Investigator

Dr. Sushanth Guldur

Principal Research Fellow

Dr. Hu Zhaolong

Research Fellow

Dr. Loke Jun Jie

Research Fellow & Safety Officer

Dr. Anastasia Shebanova

Research Fellow

Bui My Hanh

Research Assistant

Dr. Sun Yue

Research Fellow

Dr. Soner Karabacak

Research Fellow

Dr. Soheil Haddadzadegan

Research Fellow

Dr. Pooja Sharma

Research Fellow

Dr. Mai Van Cuong (Mike)

Research Fellow

Jeffrey George

Ph.D. Student

Quentin Moana Perrin

Ph.D. Student

Congxi Huang

Ph.D. Student

Khwajah Syed Maricar

Ph.D. Student

Filipe Viana Ferreira

Ph.D. Student

Chen Zilin

Ph.D. Student

Felicia Lim Jia Jia

Project Officer

Neo Qi Ying

Ph.D. Student

Liu Yiting

Ph.D. Student

Mahsa Ghafouri

Ph.D. Student

Ni Ruiyan

Visiting Ph.D. Student

News

20
Dec 23
plant
Publications

Bioinspired Squid Peptides

Every technological and biomedical breakthrough started with fundamental, blue-sky research. Such research often leads to unexpected path with unforeseen applications and that’s what makes it intellectually so rewarding. Such a journey on the fundamental discovery of squid proteins and peptides discovered in the squid beak and sucker ring teeth is described in our paper “Bioinspired Squid Peptides─ A Tale of Curiosity-Driven Research Leading to Unforeseen Biomedical Applications” published in “Accounts of Chemical Research”. Read more

19
Dec 23
suckerin
Publications

Fluid protein condensates for bioinspired applications

Our review article “Fluid protein condensates for bioinspired applications” written in collaboration with Matt Harrington (McGill University) and Raffaele Mezzenga (ETH Zürich) is published in “Nature Reviews Bioengineering”. We describe how protein coacervates (condensates) have emerged as key building blocks during the biofabrication of biological materials and present latest bioinspired applications of these protein- and peptide-based condensates.

Read more
15
Oct 23
mantis
Publications

Biomineralization of mantis shrimp dactyl club following molting

Biomineralization of mantis shrimp dactyl club following molting: Apatite formation and brominated organic components”, in collaboration with the team of Henrik Birkedal at Aarhus University in Denmark, is published in Acta Biomaterialia. Mantis shrimp hunt using club-like appendages that contain apatite, chitin, amorphous calcium carbonate, and amorphous calcium phosphate ordered in a highly hierarchical structure.

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19 Dec 2023

Fluid protein condensates for bioinspired applications

Publications

Our review article “Fluid protein condensates for bioinspired applications” written in collaboration with Matt Harrington (McGill University) and Raffaele Mezzenga (ETH Zürich) is published in “Nature Reviews Bioengineering”. We describe how protein coacervates (condensates) have emerged as key building blocks during the biofabrication of biological materials and present latest bioinspired applications of these protein- and peptide-based condensates.

15 October 2023

Biomineralization of mantis shrimp dactyl club following molting: Apatite formation and brominated organic components

Publications

The paper by former BBML PhD student Isaiah Chua “Biomineralization of mantis shrimp dactyl club following molting: Apatite formation and brominated organic components”, in collaboration with the team of Henrik Birkedal at Aarhus University in Denmark, is published in Acta Biomaterialia. Mantis shrimp hunt using club-like appendages that contain apatite, chitin, amorphous calcium carbonate, and amorphous calcium phosphate ordered in a highly hierarchical structure. To understand the formation process of the club we have analyed clubs harvested at specific times since molting, so that we could “reconstruct” a club formation map. By combining several methods ranging from position resolved synchrotron X-ray diffraction to proteomics, we reveal that clubs form from an organic membrane with brominated protein and that crystalline apatite phases are present from the very onset of club formation and grow in relative importance over time. This reveals a complex biomineralization process leading to these fascinating biomineralized tools.

Careers

We are always looking for outstanding researchers. Please contact Prof. Ali Miserez (ALI.MISEREZ@ntu.edu.sg), attach your CV and state your reason for applying. You may also apply via the links indicated

We are currently looking for research fellows/senior research fellows to work on an exciting interdisciplinary project in the area of protein-based biopolymers, with an overarching goal to produce eco-friendly and biodegradable biopolymers. See the links below for more details on the job scope and requirements.

Senior Research Fellow

Research Fellow

Contact

+6563168979




Centre for Biomimetic Sensor Science (CBSS), 50 Nanyang Drive, Research Techno Plaza (RTP), Level 6, X-Frontier Block, Nanyang Technological University (NTU), Singapore 637553.