Epidermal Cells/Skin Cells TRIZ Cases

Crosslinking, single-cell culture, and decrosslinking replace tissue grinding to raise ECM yield and improve batch stability.

A stem-cell aggregate culture on protein matrix with retinoic acid, BMP-4, and trypsin yields pure, homogeneous keratinocytes.

Sequential automated hPSC culture with retinoic acid, BMP4, and trypsin produces high-purity keratinocytes with less variability.

Sequential automated differentiation and amplification produce homogeneous, high-purity hPSC-derived keratinocytes with less operator variability.

A growth factor and BMP-inhibitor medium improves long-term epithelial stem cell passage and organoid formation from limited starting material.

Injecting iPS cells into organ-deficient blastocysts enables in vivo regeneration of complex organs while avoiding ES cell ethical issues.

A TREM2-binding antibody selectively depletes non-stimulatory myeloid cells to boost anti-tumor immune response and reduce cancer tissue volume.

Molded junction geometry and ECM-tuned dermis layers let artificial skin replicate age-specific structure and mechanical properties for cosmetics analysis.

Multi-nozzle 3D printing forms dermal mimetics, pore-like structures, and parallel hair follicle spheroids to support cicatricial alopecia treatment.

VEGF and cytokeratin thresholds help screen oral mucosa tissue for consistent graft quality and lower non-epithelial contamination.

Bioprinted dermal and epidermal layers create physiologically relevant 3D skin tissue arrays with much shorter maturation for screening.

Cell aggregates are brought into direct contact without heterologous culture supports, enabling scalable hair follicle primordium production.

Supercritical CO2 processing preserves dECM bioactive substances, lowers toxicity and osmotic pressure, and improves compounding for medical or cosmetic use.

Human connective tissue cells produce xeno-free extracellular matrix with matrix-bound vesicles, avoiding Matrigel-related infection and immune risks.

Air-liquid interface hair follicle organoids enable alopecia-mimic drug screening and expandable transplant material beyond donor hair limits.

Cell aggregates are brought into direct contact without heterologous culture supports, enabling scalable hair follicle primordium production with better cell quality.

Preformed cell aggregates and centrifuged spheroids simplify large-scale hair follicle primordium production without heterologous supports.

Centrifuged epithelial and mesenchymal cell aggregates enable larger-scale hair follicle primordium production without culture supports or heterologous materials.

Immune-tolerized fetal stem cell extracellular vesicles use HLA-G and growth factors to normalize the hair cycle without immune rejection.

Fragmented collagen ECM and adipocyte co-culture enable a 3D mammary gland model that secretes milk without specialized culture vessels.

ROCK inhibition with feeder cells and calcium medium extends non-keratinocyte epithelial cell culture without genetic alteration.

A selected mesenchymal cell population from intraoral tissue speeds cell sheet production while supporting tissue integration and angiogenesis.

Static acoustic waves pattern microtissues in blood to rapidly form autologous graft constructs with high expansion and lower rejection risk.

Stepwise WNT, BMP, FGF, and TGFβ signaling control enables somite-derived dermatome, syndetome, and stromal cell production without genetic modification.

Synthetic CpG oligonucleotide compositions activate TLR9 to speed wound healing and tissue regeneration while lowering infection risk.

Timed DAPT and CHIR-99021 treatment during organoid maturation boosts hair cell differentiation for hearing-loss drug screening and disease modeling.

Whey protein microcarriers let cells expand on dissolvable structures, avoiding mechanical detachment before downstream processing.

Minimally polarized LGR cell micro-aggregates use scaffold-supported stem cell niches to restore epithelial and dermal tissue while limiting scarring.

miR-520d-5p reverts hair cycle gene mutations toward wild type and regulates target expression to support hair growth in alopecia-related cells.

Cell aggregates replace heterologous culture supports to produce larger quantities of consistent hair follicle primordium.

Culturing breast milk stem cells into mammary cells helps address limited human milk supply while enabling customizable milk composition.

BMP4 and retinoic acid drive iPSC differentiation into lactocytes that secrete customizable milk-like products beyond donor-limited breast milk.

Defined growth factors and TGF-beta inhibition enable controlled epithelial expansion while eliminating contamination risks from undefined serum components.

A 3D skin tissue construct uses undifferentiated keratinocyte cells on a substrate to generate a basal-to-suprabasal transition.

A method dedifferentiates primary breast luminal cells into multipotent mammary stem cells using conditioned medium from active fibroblasts.

Combining native collagen with atelocollagen inhibits dermal contraction and reduces collagen degradation, enabling accurate human skin structure formation.

Segmented bio-ink discharge creates asymmetric hair follicle spheroids, resolving time-consuming sequential clustering while ensuring uniform quality.

Nanodroplet lipid dispersion manages thermal energy transfer to prevent ice crystal damage and eliminate hydrophobic toxicity.

Culture medium with ErbB3/4 ligands and Wnt agonists expands breast epithelial stem cells.

Hair follicle stem cells differentiate into germline stem cells using specific growth factor culture conditions without genetic modification.

Segmented hiPSC differentiation preserves stem cell marker expression to enable functional hair follicle regeneration and epidermal reconstitution.

Coated cells with extracellular matrix films form dermis layers without collagen gel, improving long-term stability and layer adhesion.

Retinoic acid treatment during otic placode formation promotes hair cell differentiation in inner ear organoids.

Polyoxyethylene polyoxypropylene ether block copolymer links cell-affinity peptides to form a temperature-sensitive hydrogel-like microstructure.

Autogenous plasma cultures cells on hydrophobic substrates to avoid animal product immunological issues.

Mechanical strain on modified elastomeric substrates patterns cells into ordered arrays, eliminating stencil residue and specialized equipment needs.

TGFβ1 and BMP4 activate the SMAD pathway to generate precise functional basal-like cells, resolving low efficiency in stem cell differentiation.

A 3D cellular composite integrates keratinocytes, fibroblasts, Schwann cells, and neurons to support neurite outgrowth.

An in vitro assay employing autologous keratinocytes and fibroblasts discriminates sensitizers from non-sensitizers, reducing animal testing reliance.

A type IV collagen coating layer on a hydrogel scaffold supports epidermal keratinocyte seeding to form stratified tissue structures.