Functional Scaffolds for Hard Tissue Engineering and Surgery

A special issue of Journal of Functional Biomaterials (ISSN 2079-4983). This special issue belongs to the section "Biomaterials for Tissue Engineering and Regenerative Medicine".

Deadline for manuscript submissions: 31 October 2026 | Viewed by 2183

Special Issue Editors


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Guest Editor
Department of Constructional Materials and Biomaterials Materials and Biomaterials, Faculty of Materials Engineering, Kazimierz Wielki University, Bydgoszcz, Poland
Interests: bone tissue biomechanics and endocrinology; orthopaedic biomaterials; connecting scaffolds for resurfacing arthroplasty endoprostheses; surface modification and functionalization of biomaterials
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E-Mail Website
Guest Editor
Department of Constructional Materials and Biomaterials, Faculty of Materials Engineering, Kazimierz Wielki University, Bydgoszcz, Poland
Interests: orthopaedic biomaterials; engineering of bone–implant interface; scaffolds for bone reconstruction; surface modification and functionalization of biomaterials
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Adult Spine Orthopaedics Department, Poznan University of Medical Sciences, Poznan, Poland
Interests: morphological changes in the course of degenerative spine disease biomechanical evaluation of spine and hip implants; concentration of metals and elements in the motion system; quality of life in elderly patients with spine diseases; back pain syndromes especially in degenerative disease
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Hard tissue engineering is a rapidly advancing research field in frame of biomaterials engineering and regenerative medicine that seeks to restore or replace hard tissues—such as bone, osteochondral interfaces (and other skeletal tissues like cartilage, ligaments and tendons), enamel, dentin (and accompanying soft tissues like dental pulp and periodontal ligaments)—through the development of biomaterial-based, often cell- or biofactor-loaded three-dimensional porous implants/scaffolds. These scaffolds are designed to be surgically implanted (during surgical treatments used in hard tissue surgery, i.e., the orthopaedic surgery, the craniofacial surgery, the maxillofacial surgery, and the oral surgery) to regenerate load-bearing structures, repairing both their mechanical function and biological continuity. In reconstructing defects that exceed the tissue’s innate regenerative capacity and in repairing complex osteochondral interfaces—a persistent clinical challenge—engineered scaffolds serve as temporary templates that guide new tissue formation while providing mechanical support under physiological loads. Recent advances in biomaterials chemistry and engineering, biofunctionalization, and additive manufacturing now enable the creation of scaffolds with graded microarchitectures, multi-material compositions, and programmed release of bioactive cues, allowing for designs that better mimic anatomical gradient biostructures, control cell behavior, and synchronize tissue degradation with new tissue formation. Beyond osteoconductive microarchitectures, current efforts focus on scaffolds that provide a 3D microenvironment capable of actively instructing repair (osteoinductive, angiogenic, immunomodulatory), preventing or treating infection (through intrinsic antimicrobial features or local drug delivery), and addressing adjunct needs such as localized cancer therapies or enhanced vascular ingrowth.

This Special Issue aims to exhibit and discuss the latest advancements in functional scaffolds for hard tissue engineering and surgery, including design strategies, new biomaterials, fabrication methods, biological functionalization, and preclinical or translational studies that link scaffold parameters to functional outcomes under clinically relevant mechanical and biological conditions. It is our pleasure to invite you to submit a manuscript to this Special Issue. Full papers, communications, and reviews are welcome.

Potential topics include, but are not limited to, the following:

  • Approaches to functionalize scaffolds for biological activity;
  • Development and characterization of functional scaffolds for hard tissue engineering and surgery;
  • New biomaterials and bioactive factors for hard-tissue repair;
  • Fabrication methods (conventional and additive) and design workflows;
  • Infection control and controlled drug delivery from scaffolds;
  • In vitro and in vivo validation of functional scaffolds.

Prof. Dr. Ryszard Uklejewski
Dr. Mariusz Winiecki
Dr. Mikołaj Dąbrowski
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Functional Biomaterials is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • functional scaffolds
  • osteoconductive scaffolds
  • osteoinductive scaffolds
  • porous scaffolds
  • 3D-printed scaffolds
  • drug delivery scaffolds
  • hard tissue engineering scaffolds
  • hard tissue surgery
  • osteochondral repair
  • bone regeneration

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Published Papers (1 paper)

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Research

27 pages, 5309 KB  
Article
Cotton-Type Nanofiber Guided Pathway Engineering Enables Rapid Tissue Integration and Accelerated Bone Regeneration in Mineral Powder-Based Bone Grafts
by Subin Park, Siphesihle Cassandra Nonjola, Jeong In Kim and Soonchul Lee
J. Funct. Biomater. 2026, 17(4), 202; https://doi.org/10.3390/jfb17040202 - 20 Apr 2026
Viewed by 1687
Abstract
Mineral powder–based bone grafts exhibit excellent osteoconductivity; however, their clinical efficacy is often compromised by insufficient early-stage tissue ingrowth, leading to particle aggregation and pocket formation within the defect site during the initial healing phase. Here, we report a cotton-type nanofiber-guided mineral graft [...] Read more.
Mineral powder–based bone grafts exhibit excellent osteoconductivity; however, their clinical efficacy is often compromised by insufficient early-stage tissue ingrowth, leading to particle aggregation and pocket formation within the defect site during the initial healing phase. Here, we report a cotton-type nanofiber-guided mineral graft designed to overcome this early integration failure by creating fibrous pathways for tissue ingress. Cotton-type polycaprolactone (PCL) nanofibers were fabricated via electrospinning using a pin-based collector engineered to induce strong inter-fiber repulsion, resulting in a highly expanded, three-dimensional cottony architecture. Tetracalcium phosphate (TTCP) and α-tricalcium phosphate (α-TCP) mineral particles were subsequently deposited onto the surface of the cottony nanofibers, forming a fibrous–mineral hybrid graft (c-NF@T/α-TCP) in which the nanofibers act as a transient, functionally defined tissue-guiding framework during the early healing phase. The cottony nanofiber network effectively prevented mineral particle aggregation and generated continuous pathways within the graft, facilitating early tissue infiltration and vascular ingress during the first week after implantation. In vivo evaluation in a bone defect model demonstrated that c-NF@T/α-TCP significantly reduced tissue pocket formation at early time points and promoted subsequent bone regeneration compared to mineral powder-only grafts. This study highlights the critical importance of early-stage structural guidance in mineral-based bone grafts and introduces cotton-type nanofiber–guided pathway engineering as a simple yet effective strategy to unlock the regenerative potential of conventional inorganic bone substitutes. Full article
(This article belongs to the Special Issue Functional Scaffolds for Hard Tissue Engineering and Surgery)
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