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Articles by Semih Sevim
Magnetoelectric microrobots for spinal cord injury regeneration
Abstract Spinal cord injury remains difficult to treat because of the intrinsically limited regenerative capacity of neurons. Although neural progenitor cell (NPC) therapies are promising, inadequate graft survival, uncontrolled differentiation and weak functional integration continue to restrict outcomes.
Biocompatible Magnetopyroelectric Composite Films for Cell Stimulation
1 Introduction Electrical signals are intrinsic to cellular function, orchestrating activities from communication to complex physiological responses across various biological systems [1]. Recognizing the potential of these signals, recent therapeutic strategies have focused on replicating endogenous electrical cues to foster an environment akin to healthy tissue, aiming to restore or enhance impaired cellular functions [2, 3].
On‐the‐Fly Synthesis of Freestanding Spin‐Crossover Architectures With Tunable Magnetic Properties
1 Introduction The dynamic interplay between low-spin (LS) and high-spin (HS) configurations in spin-crossover (SCO) materials is one of the most remarkable phenomena in molecular magnetic switches. This bistability—induced by temperature, pressure, light, or guest molecules[1-4] —originates from an electron redistribution between molecular orbitals, giving rise to pronounced changes in magnetic, optical, mechanical, and structural properties.
Insights into the Biological Activity and Bio‐Interaction Properties of Nanoscale Imine‐Based 2D and 3D Covalent Organic Frameworks
1 Introduction Covalent organic frameworks (COFs) are a unique class of porous crystalline materials characterized by the covalent bonding of organic monomers, resulting in the formation of 2D or 3D reticular structures.[1] Owing to their intrinsic porosity and organic composition, these structures offer tremendous potential for biomedical applications.[2-4] COFs can effectively accommodate various functional chemical cargoes, including diagnostic molecules, contrast agents, and therapeutic...
A Naturally Inspired Extrusion‐based Microfluidic Approach for Manufacturing Tailorable Magnetic Soft Continuum Microrobotic Devices
Supporting Information Filename Description adma202402309-sup-0001-FigureS1-S12.docx7.7 MB Supporting Information adma202402309-sup-0002-MovieS1.mp417 MB Supporting Information adma202402309-sup-0003-MovieS2.mp423 MB Supporting Information adma202402309-sup-0004-MovieS3.mp49.4 MB Supporting Information adma202402309-sup-0005-MovieS4.mp431.3 MB Supporting Information adma202402309-sup-0006-MovieS5.mp432 MB Supporting Information adma202402309-sup-0007-MovieS6.mp433 MB Supporting Information...
Electrostatic catalysis of a click reaction in a microfluidic cell - Nature Communications
Abstract Electric fields have been highlighted as a smart reagent in nature’s enzymatic machinery, as they can directly trigger or accelerate chemical processes with stereo- and regio-specificity. In enzymatic catalysis, controlled mass transport of chemical species is also key in facilitating the availability of reactants in the active reaction site.
3D Printing of Covalent Organic Frameworks: A Microfluidic‐Based System to Manufacture Binder‐Free Macroscopic Monoliths
1 Introduction Covalent organic frameworks (COFs) are porous crystalline organic materials that have attracted a wealth of attention from the scientific community.
“On‐The‐Fly” Synthesis of Self‐Supported LDH Hollow Structures Through Controlled Microfluidic Reaction‐Diffusion Conditions
1 Introduction Layered double hydroxides (LDHs), also referred to as anionic clays, are a sort of lamellar materials exhibiting a highly tunable chemical composition.[1] Their chemical structure consists of infinite sheets comprising octahedral divalent (M(II)) and trivalent cations (M(III)) connected through OH− bridges.[2, 3] These positively charged layers assemble through the inclusion of an (in)organic anion within their interlayer spaces.
Biotemplating of Metal-Organic Framework Nanocrystals for Applications in Small‐Scale Robotics
Abstract Biotemplating is a powerful approach for manufacturing small-scale devices. Here, the assembly of metal–organic framework (MOF) nanocrystals onto biotemplated magnetic helical structures on the cyanobacterium Spirulina platensis is reported. It is demonstrated that the authors’ approach is universal and can be used to equip biotemplated structures with different functional MOF systems.
Growing and Shaping Metal-Organic Framework Single Crystals at the Millimeter Scale
Controlling and understanding the mechanisms that harness crystallization processes is of utmost importance in contemporary materials science and, in particular, in the realm of reticular solids where it still remains a great challenge. In this work, we show that environments mimicking microgravity conditions can harness the size and shape of functional biogenic crystals such as peptide-based metal–organic frameworks (MOFs).
Biomimetic Synthesis of Sub-20 nm Covalent Organic Frameworks in Water
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