Correction: Ocular biocompatibility evaluation of POSS nanomaterials for biomedical material applications.

[This corrects the article DOI: 10.1039/C5RA08668J.].

Retraction: Construction of a temperature-responsive terpolymer coating with recyclable bactericidal and self-cleaning antimicrobial properties.

Retraction of 'Construction of a temperature-responsive terpolymer coating with recyclable bactericidal and self-cleaning antimicrobial properties' by Bailiang Wang , , 2016, , 1731-1741, https://doi.org/10.1039/C6BM00587J.

Retraction: Bio-inspired terpolymers containing dopamine, cations and MPC: a versatile platform to construct a recycle antibacterial and antifouling surface.

Retraction of 'Bio-inspired terpolymers containing dopamine, cations and MPC: a versatile platform to construct a recycle antibacterial and antifouling surface' by B. L. Wang , , 2015, , 5501-5510, https://doi.

Retraction: A self-defensive antibacterial coating acting through the bacteria-triggered release of a hydrophobic antibiotic from layer-by-layer films.

Retraction of 'A self-defensive antibacterial coating acting through the bacteria-triggered release of a hydrophobic antibiotic from layer-by-layer films' by Bailiang Wang , , 2017, , 1498-1506, https://doi.org/10.1039/C6TB02614A.

Expression of concern: Synthesis of MA POSS-PMMA as an intraocular lens material with high light transmittance and good cytocompatibility.

Expression of concern for 'Synthesis of MA POSS-PMMA as an intraocular lens material with high light transmittance and good cytocompatibility' by Bailiang Wang , , 2014, , 52959-52966, https://doi.org/10.1039/C4RA08060B.

Expression of concern: Poly(lactide--glycolide) grafted hyaluronic acid-based electrospun fibrous hemostatic fragments as a sustainable anti-infection and immunoregulation material.

Expression of concern for 'Poly(lactide--glycolide) grafted hyaluronic acid-based electrospun fibrous hemostatic fragments as a sustainable anti-infection and immunoregulation material' by Wen Liu , , 2019, , 4997-5010, https://doi.org/10.1039/C9TB00659A.

Expression of concern: Bacterial infection microenvironment-responsive enzymatically degradable multilayer films for multifunctional antibacterial properties.

Expression of concern for 'Bacterial infection microenvironment-responsive enzymatically degradable multilayer films for multifunctional antibacterial properties' by Qingqing Yao , , 2017, , 8532-8541, https://doi.org/10.1039/C7TB02114C.

Expression of concern: and evaluation of xanthan gum-succinic anhydride hydrogels for the ionic strength-sensitive release of antibacterial agents.

Expression of concern for ' and evaluation of xanthan gum-succinic anhydride hydrogels for the ionic strength-sensitive release of antibacterial agents' by Bailiang Wang , , 2016, , 1853-1861, https://doi.org/10.1039/C5TB02046H.

Expression of concern: Bacterial self-defense antibiotics release from organic-inorganic hybrid multilayer films for long-term anti-adhesion and biofilm inhibition properties.

Expression of concern for 'Bacterial self-defense antibiotics release from organic-inorganic hybrid multilayer films for long-term anti-adhesion and biofilm inhibition properties' by Qingwen Xu, , 2017, , 19245-19254, https://doi.org/10.1039/C7NR07106J.

An adherent drug depot for retinal ganglion cell protection and regeneration in rat traumatic optic neuropathy models.

Traumatic optic neuropathy (TON) describes an injury to the optic nerve following either blunt or penetrating trauma, and remains an important cause of vision loss. No generalized treatment of TON has been established so far to restore the injured optic nerve. We developed an adherent drug-encapsulated bi-layered depot (DBP) as a dual drug vehicle for local treatment to protect the residual retinal ganglion cells (RGCs) and regenerate axons following optic nerve damage.

Correction: Surface modification of intraocular lenses with hyaluronic acid and lysozyme for the prevention of endophthalmitis and posterior capsule opacification.

[This corrects the article DOI: 10.1039/C4RA13499K.].

The osteogenic niche-targeted arsenic nanoparticles prevent colonization of disseminated breast tumor cells in the bone.

Up to 70% of patients with late-stage breast cancer have bone metastasis. Current treatment regimens for breast cancer bone metastasis are palliative with no therapeutic cure. Disseminated tumor cells (DTCs) colonize inside the osteogenic niches in the early stage of bone metastasis.

Corrigendum to 'Application of bioactive hydrogels combined with dental pulp stem cells for the repair of large gap peripheral nerve injuries' [Bioactive Mater. 6 (3) (2021) 638-654].

[This corrects the article DOI: 10.1016/j.bioactmat.

Poly(trimethylene carbonate) flexible intestinal anastomosis scaffolds to reduce the probability of intestinal fistula and obstruction.

Biodegradable anastomat play an important role in the reconstruction process of the digestive tract. However, the biocompatibility and organizational compliance of anastomotic tubes still need to be improved. Electrospun tissue engineering scaffolds have excellent biomimetic extracellular matrix properties, biocompatibility and biodegradability.

Controlled release of KGF-2 for regulation of wound healing by KGF-2 complexed with "lotus seedpod surface-like" porous microspheres.

Keratinocyte growth factor-2 (KGF-2) can regulate the proliferation and differentiation of keratinocyte, which plays a remarkable role in maintaining normal tissue structure and promoting wound healing. As an effective strategy, KGF-2 solution is widely used in the treatment of wounds in clinical applications. However, KGF-2 in solution cannot achieve sustained release, which results in drug loss and unnecessary waste.

Highly sensitive fluorescent sensor based on coumarin organic dye for pyrophosphate ion turn-on biosensing in synovial fluid.

Highly sensitive fluorescence detection of pyrophosphate ion (PPi) is in urgent demand but remains a great obstacle, ascribing to scarcity of high-performance materials with promising optical property and high affinity. Herein, we report the design and fabrication of a coumarin-based organic dye (DCCH-TPD) containing both hydrazide group and terpyridine moiety for PPi biosensing through Cu-induced photo-electron transfer (PET) effect and target analyte-switched competitive coordination reaction. Individual DCCH-TPD was found to be highly emissive, and displayed a turn-off response toward Cu due to formation of Cu@DCCH-TPD and PET effect.

Retraction: Size-selected silver nanoparticles for MALDI-TOF mass spectrometry of amyloid-beta peptides.

Retraction of 'Size-selected silver nanoparticles for MALDI-TOF mass spectrometry of amyloid-beta peptides' by Feng Ding et al., Nanoscale, 2018, 10, 22044-22054, DOI: 10.1039/C8NR07921H.

Fabricating poly(vinyl alcohol)/gelatin composite sponges with high absorbency and water-triggered expansion for noncompressible hemorrhage and wound healing.

It is challenging for traditional hemostatic sponges to control massive and noncompressible hemorrhages in the military field and accidental trauma. In this work, a series of highly fluid-absorbent composite sponges with rapid expansion ability based on norbornene anhydride-modified poly(vinyl alcohol) and gelatin (PVA@Gel-Sps) were developed by a foaming technique, chemical and physical crosslinking reactions and lyophilization. The prepared PVA@Gel-Sp exhibited a 3500% maximum water absorption ratio with a fast water absorption speed, which was suitable for blood component concentration.

Controlled release of baricitinib from a thermos-responsive hydrogel system inhibits inflammation by suppressing JAK2/STAT3 pathway in acute spinal cord injury.

Aggressive inflammation is an important pathological process of secondary injury in acute spinal cord injury (SCI). However, traditional treatments of secondary injury in acute SCI have achieved little success. Novel biomaterials combined with small molecule drugs are considered as a potential treatment for SCI.

Notoginsenoside R1 functionalized gelatin hydrogels to promote reparative dentinogenesis.

Pulp-capping materials are commonly adopted in the clinic to form reparative dentin and thus protect dental pulp tissues from cases of deep caries, accidentally exposed pulps or partial pulpotomy. Some traditional pulp capping materials used in the clinic include calcium hydroxide and mineral trioxide aggregates. However, there are limitations to thin restorative dentin, and a long period of time is needed to cause degenerative changes in dental pulp.

Biological Behavioral Alterations of the Post-neural Differentiated Dental Pulp Stem Cells Through an Microenvironment.

Transplantation of undifferentiated dental pulp stem cells (DPSCs) may suffer from tumorigenesis. Neuronal differentiated DPSCs (d-DPSCs) have emerged as an ideal source to treat central nervous system (CNS) disorders. Moreover, different components of culture medium functioned on the characteristics of d-DPSCs .