Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Surface Tension and Surface Energy01:16

Surface Tension and Surface Energy

3.2K
When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
3.2K
¹H NMR of Conformationally Flexible Molecules: Temporal Resolution00:52

¹H NMR of Conformationally Flexible Molecules: Temporal Resolution

1.3K
At room temperature, the chair conformer of cyclohexane undergoes rapid ring flipping between two equivalent chair conformers at a rate of approximately 105 times per second. These two chair conformers are in equilibrium. The rapid ring flipping results in the interconversion of the axial proton to an equatorial proton and an equatorial to the axial proton. Such interconversions are too rapid and cannot be detected on the NMR timescale. Hence, the NMR spectrometer cannot distinguish between the...
1.3K
Wood Surfacing01:14

Wood Surfacing

342
Wood surfacing is a critical finishing process designed to smoothen the wood surface, enhance its dimensional accuracy, and make handling safer. This process compensates for potential shrinkage during the seasoning phase by marginally increasing the wood dimensions before surfacing. It also helps correct some distortions that may occur as the wood dries.
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
342
Measurement: Derived Units03:02

Measurement: Derived Units

54.2K
The International System of Units or SI system, by international agreement, has fixed measurement units for seven fundamental properties: length, mass, time, temperature, electric current, amount of substance, and luminosity. These are called the SI base units.
54.2K
Cell-surface Signaling01:21

Cell-surface Signaling

53.9K
Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse across the cell membrane. In order to be able to affect a cell without entering it, these hormones bind to receptors on the cell membrane. When a first messenger, a hormone, binds to a receptor, a signal cascade is set off, causing second messengers, proteins inside the cell, to become activated, resulting in downstream effects.
53.9K
¹H NMR of Conformationally Flexible Molecules: Variable-Temperature NMR01:15

¹H NMR of Conformationally Flexible Molecules: Variable-Temperature NMR

1.7K
The axial and equatorial protons in cyclohexane can be distinguished by performing a variable-temperature NMR experiment. In this process, except for one proton, the remaining eleven protons are replaced by deuterium. The deuterium substitution avoids the possible peak splitting caused by the spin-spin coupling between the adjacent protons. The remaining proton flips between the axial and equatorial positions.
1.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Autoantigen-loaded Polymeric Microparticles associate with B cells and promote tolerogenic antigen presentation in a mouse model of experimental autoimmune encephalomyelitis.

Nature communications·2026
Same author

DNA i-motif guided synthesis of a selective telomerase inhibitor.

Chemical communications (Cambridge, England)·2026
Same author

Dual-adjuvant mucosal vaccine leveraging mast cell and TLR9 agonists for protection against poxvirus infection.

RSC pharmaceutics·2026
Same author

Nanoparticle vaccine formulations for dengue virus.

RSC pharmaceutics·2026
Same author

Novel compounds derived from AR-12 that demonstrate host-directed clearance of intracellular <i>Salmonella enterica</i> Serovar Typhimurium.

bioRxiv : the preprint server for biology·2026
Same author

Enhanced Hypoglycemic Activity of Metformin with the Reduction of the Particle Size.

Biotechnology and applied biochemistry·2026
Same journal

Melanocortin 1 receptor-targeted peptide-functionalized liposomes for enhanced melanocyte-preferential drug delivery and anti-melanogenic efficacy.

Journal of materials chemistry. B·2026
Same journal

Recent progress in side-chain amino acid-based polymers: synthesis, self-assembly, and emerging biomedical applications.

Journal of materials chemistry. B·2026
Same journal

Bioinspired electrospun nanofibrous dressings loaded with Mentha-derived exosome-like vesicles for antibacterial and immunomodulatory burn healing.

Journal of materials chemistry. B·2026
Same journal

On demand functionality of an NIR-enhanced nanozyme catalyst for infected wound healing.

Journal of materials chemistry. B·2026
Same journal

Positively charged, phenolic hydroxyl and anthraquinone structured polystyrene microspheres targeting dual elimination of bacterial pathogens and pathogen-associated molecular patterns for sepsis therapy.

Journal of materials chemistry. B·2026
Same journal

Carbon dot-decorated Ni-MOF heterojunction sonozymes for enhanced sonodynamic-chemodynamic cancer therapy.

Journal of materials chemistry. B·2026
See all related articles

Related Experiment Video

Updated: Jan 21, 2026

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper
06:36

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Published on: February 27, 2021

4.1K

Flexible, microstructured surfaces using chitin-derived biopolymers.

Sayantan Pradhan1, Kathryn M Moore2, Kristy M Ainslie2

  • 1Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA. vyadavalli@vcu.edu.

Journal of Materials Chemistry. B
|August 8, 2019
PubMed
Summary
This summary is machine-generated.

Researchers developed photocrosslinkable chitin, a versatile biomaterial. This modified chitin enables precise microarchitectures for cell culture and bioelectronics, overcoming processing limitations of natural chitin.

More Related Videos

Biomimetic Replication of Root Surface Microstructure using Alteration of Soft Lithography
05:53

Biomimetic Replication of Root Surface Microstructure using Alteration of Soft Lithography

Published on: August 5, 2020

6.1K
Molecular Entanglement and Electrospinnability of Biopolymers
07:59

Molecular Entanglement and Electrospinnability of Biopolymers

Published on: September 3, 2014

15.1K

Related Experiment Videos

Last Updated: Jan 21, 2026

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper
06:36

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Published on: February 27, 2021

4.1K
Biomimetic Replication of Root Surface Microstructure using Alteration of Soft Lithography
05:53

Biomimetic Replication of Root Surface Microstructure using Alteration of Soft Lithography

Published on: August 5, 2020

6.1K
Molecular Entanglement and Electrospinnability of Biopolymers
07:59

Molecular Entanglement and Electrospinnability of Biopolymers

Published on: September 3, 2014

15.1K

Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Biomedical Engineering

Background:

  • Chitin, an abundant amino polysaccharide from crustaceans, offers biocompatibility and biodegradability.
  • Current limitations in chitin processing hinder its full potential as a biomaterial.
  • Chitin and chitosan are explored for biomedical applications due to favorable properties.

Purpose of the Study:

  • To develop a facile method for modifying chitin into a photocrosslinkable derivative.
  • To create mechanically robust and optically transparent chitin-based materials.
  • To demonstrate the utility of modified chitin in microfabrication and cell culture.

Main Methods:

  • Modification of chitin with photoactive moieties.
  • Processing of modified chitin into films using formic acid.
  • Fabrication of microarchitectures via photolithography.
  • Evaluation of film properties and cell culture performance.

Main Results:

  • Photocrosslinkable chitin derivative synthesized.
  • Mechanically robust, optically transparent chitin sheets produced.
  • Comparable tensile properties and improved wettability to native chitin/chitosan.
  • High-resolution microarchitectures fabricated on various substrates.
  • Demonstrated utility as a dynamic cell culture substrate for fibroblast guidance.

Conclusions:

  • Photocrosslinkable chitin offers a solution to processing challenges.
  • The material supports precise microfabrication for advanced applications.
  • Chitin-based micropatterns can guide cell behavior in tissue engineering.
  • Potential applications in degradable bioelectronics and regenerative medicine.