4.7 Article

Nanostructured lipid carriers for triamcinolone acetonide delivery to the posterior segment of the eye

期刊

COLLOIDS AND SURFACES B-BIOINTERFACES
卷 88, 期 1, 页码 150-157

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfb.2011.06.025

关键词

Nanostructured lipid carrier; Triamcinolone acetonide; Nile red; Retina; Posterior segment; Ocular; Eye; Stability; Turbiscan

资金

  1. Spanish-Portuguese Integrated Actions [HP2008-0015]
  2. Fundacao para a Ciencia e Tecnologia do Ministerio do Ciencia e Tecnologia [PTDC/SAU-FAR/113100/2009]
  3. Fundação para a Ciência e a Tecnologia [PTDC/SAU-FAR/113100/2009] Funding Source: FCT

向作者/读者索取更多资源

Triamcinolone acetonide (TA) is a corticosteroid drug currently administered by intravitreal injection for a broad spectrum of inflammatory, edematous and angiogenic ocular diseases. To increase the drug's bioavailability by ocular instillation. TA was encapsulated in nanostructured lipid carriers (NLC), previously optimized by our group using a factorial design approach. In the present paper, nanometric (similar to 200 nm), unimodal and negatively charged NLC loaded with the fluorescent lipid marker Nile red (NR-NLC) and drug (TA-NLC) were produced by high pressure homogenization. Based on the selected formulations, in vivo tests were carried out by eye-drop instillation of NR-NLC in mice, revealing the systems' ability of delivering lipophilic actives to the posterior segment of the eye via the corneal and non-corneal pathways. Short and long-term stability of TA-NLC was assessed by high performance stability analysis using the Turbiscan (R). The results showed a backscattering of less than 1.5% and during a period of 6 months, anticipated the low tendency of these particles for aggregation during shelf life when stored at room temperature. (C) 2011 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Pharmacology & Pharmacy

Ent-kaurenoic acid-enriched Mikania glomerata leaves-complexed beta-cyclodextrin: Pharmaceutical development and in vivo antitumor activity in a sarcoma 180 mouse model

Angela V. F. Alves, Carlisson R. Melo, Jose L. Chagas-Neto, Ricardo G. Amaral, Sergio R. Ambrosio, Monique R. Moreira, Rodrigo C. S. Veneziani, Juliana C. Cardoso, Patricia Severino, Rogerio O. Gondak, Eliana B. Souto, Ricardo L. C. de Albuquerque-Junior

Summary: The antitumor activity of inclusion complexes formed between ent-kaurenoic acid (ERKA) and beta-cyclodextrin (ERKA:beta-CD) was studied in mice, and it was found that ERKA:beta-CD300 showed significant tumor growth inhibition without side effects. This antitumor activity may be attributed to the inhibition of the NF-kB signaling pathway and LDH activity.

INTERNATIONAL JOURNAL OF PHARMACEUTICS (2023)

Review Chemistry, Multidisciplinary

Pluronic® triblock copolymer-based nanoformulations for cancer therapy: A 10-year overview

Karine Cappuccio de Castro, Julia Cedran Coco, Erica Mendes dos Santos, Janaina Artem Ataide, Renata Miliani Martinez, Monica Helena Monteiro do Nascimento, Joao Prata, Pedro Ricardo Martins Lopes da Fonte, Patricia Severino, Priscila Gava Mazzola, Andre Rolim Baby, Eliana Barbosa Souto, Daniele Ribeiro de Araujo, Andre Moreni Lopes

Summary: This paper reviews the literature on the use of Pluronic (R) triblock copolymers for drug encapsulation in the past 10 years. It focuses on the progress of drug delivery systems (e.g. micelles, liposomes, micro/nanoemulsions, hydrogels and nanogels, polymersomes and niosomes) and discusses the benefits of Pluronic (R) triblock copolymers as biological response modifiers and pharmaceutical additives, adjuvants, and stabilizers. The paper also highlights the advantages and limitations of developing site-specific targeting approaches based on Pluronic-based nanostructures in cancer treatment, as well as innovative examples for improving tumor cytotoxicity while reducing side effects.

JOURNAL OF CONTROLLED RELEASE (2023)

Article Plant Sciences

The International Natural Product Sciences Taskforce (INPST) and the power of Twitter networking exemplified through #INPST hashtag analysis

Rajeev K. Singla, Ronita De, Thomas Efferth, Bruno Mezzetti, Md Sahab Uddin, Sanusi, Fidele Ntie-Kang, Dongdong Wang, Fabien Schultz, Kiran R. Kharat, Hari Prasad Devkota, Maurizio Battino, Daniel Sur, Ronan Lordan, Sourav S. Patnaik, Christos Tsagkaris, Chandragiri Siva Sai, Surya Kant Tripathi, Mihnea-Alexandru Gaman, Mosa E. O. Ahmed, Elena Gonzalez-Burgos, Smith B. Babiaka, Shravan Kumar Paswan, Joy Ifunanya Odimegwu, Faizan Akram, Jesus Simal-Gandara, Magali S. Urquiza, Aleksei Tikhonov, Himel Mondal, Shailja Singla, Sara Di Lonardo, Eoghan J. Mulholland, Merisa Cenanovic, Abdulkadir Yusif Maigoro, Francesca Giampieri, Soojin Lee, Nikolay T. Tzvetkov, Anna Maria Louka, Pritt Verma, Hitesh Chopra, Scarlett Perez Olea, Johra Khan, Jose M. Alvarez Suarez, Xiaonan Zheng, Michal Tomczyk, Manoj Kumar Sabnani, Christhian Delfino Villanueva Medina, Garba M. Khalid, Hemanth Kumar Boyina, Milen Georgiev, Claudiu T. Supuran, Eduardo Sobarzo-Sanchez, Tai-Ping Fan, Valeria Pittala, Antoni Sureda, Nady Braidy, Gian Luigi Russo, Rosa Anna Vacca, Maciej Banach, Gerard Lizard, Amira Zarrouk, Sonia Hammami, Ilkay Erdogan Orhan, Bharat B. Aggarwal, George Perry, Mark J. S. Miller, Michael Heinrich, Anupam Bishayee, Anake Kijjoa, Nicolas Arkells, David Bredt, Michael Wink, Bernd L. Fiebich, Gangarapu Kiran, Andy Wai Kan Yeung, Girish Kumar Gupta, Antonello Santini, Massimo Lucarini, Alessandra Durazzo, Amr El-Demerdash, Albena T. Dinkova-Kostova, Alejandro Cifuentes, Eliana B. Souto, Muhammad Asim Masoom Zubair, Pravin Badhe, Javier Echeverria, Jaroslaw Olav Horbanczuk, Olaf K. Horbanczuk, Helen Sheridan, Sadeeq Muhammad Sheshe, Anna Maria Witkowska, Ibrahim M. Abu-Reidah, Muhammad Riaz, Hammad Ullah, Akolade R. Oladipupo, Victor Lopez, Neeraj Kumar Sethiya, Bhupal Govinda Shrestha, Palaniyandi Ravanan, Subash Chandra Gupta, Qushmua E. Alzahrani, Preethidan Dama Sreedhar, Jianbo Xiao, Mohammad Amin Moosavi, Parasuraman Aiya Subramani, Amit Kumar Singh, Ananda Kumar Chettupalli, Jayanta Kumar Patra, Gopal Singh, Tomasz M. Karpinski, Fuad Al-Rimawi, Rambod Abiri, Atallah F. Ahmed, Davide Barreca, Sharad Vats, Said Amrani, Carmela Fimognari, Andrei Mocan, Lucian Hritcu, Prabhakar Semwal, Md Shiblur Rahaman, Mila Emerald, Akinleye Stephen Akinrinde, Abhilasha Singh, Ashima Joshi, Tanuj Joshi, Shafaat Yar Khan, Gareeballah Osman Adam Balla, Aiping Lu, Sandeep Ramchandra Pai, Imen Ghzaiel, Niyazi Acar, Nour Eddine Es-Safi, Gokhan Zengin, Azazahemad A. Kureshi, Arvind Kumar Sharma, Bikash Baral, Neeraj Rani, Philippe Jeandet, Monica Gulati, Bhupinder Kapoor, Yugal Kishore Mohanta, Zahra Emam-Djomeh, Raphael Onuku, Jennifer R. Depew, Omar M. Atrooz, Bey Hing Goh, Jose Carlos Andrade, Bikramjit Konwar, V. J. Shine, Joao Miguel Lousa Dias Ferreira, Jamil Ahmad, Vivek K. Chaturvedi, Krystyna Skalicka-Wozniak, Rohit Sharma, Rupesh K. Gautam, Sebastian Granica, Salvatore Parisi, Rishabh Kumar, Atanas G. Atanasov, Bairong Shen

Summary: The development of digital technologies and open innovation approaches has enabled the creation of virtual organizations and enterprises. The International Natural Product Sciences Taskforce (INPST) is an open innovation platform that brings together individuals and organizations interested in natural product scientific research. This study presents an overview of INPST activities and showcases the use of Twitter as a powerful networking tool, demonstrated through the 2021 INPST Twitter Networking Event.

PHYTOMEDICINE (2023)

Review Immunology

Tocilizumab-coated solid lipid nanoparticles loaded with cannabidiol as a novel drug delivery strategy for treating COVID-19: A review

Aleksandra Zielinska, Piotr Eder, Jacek Karczewski, Marlena Szalata, Szymon Hryhorowicz, Karolina Wielgus, Milena Szalata, Agnieszka Dobrowolska, Atanas G. Atanasov, Ryszard Slomski, Eliana B. Souto

Summary: This study discusses the use of monoclonal antibodies for targeted drug delivery in the treatment of COVID-19. It proposes the use of solid lipid nanoparticles (SLN) loaded with tocilizumab (TCZ) and cannabidiol (CBD) for oral administration. TCZ attenuates cytokine storm in SARS-CoV-2 infected patients, while CBD has anti-inflammatory properties and can modulate gene expression. The use of SLN for oral administration of TCZ-tailored CBD-loaded SLN shows potential in managing SARS-CoV-2 and related infections. Rating: 7/10

FRONTIERS IN IMMUNOLOGY (2023)

Article Pharmacology & Pharmacy

Conventional and PEGylated Liposomes as Vehicles of Copaifera sabulicola

Ian M. R. Blanco, Raquel de Melo Barbosa, Julita M. P. Borges, Silvio A. B. Vieira de Melo, Ramon dos Santos El-Bacha, Cesar Viseras, Patricia Severino, Elena Sanchez-Lopez, Eliana B. B. Souto, Elaine Cabral-Albuquerque

Summary: Traditional medicine uses resin oils from plants for medicinal purposes, and this study focuses on understanding their pharmacological properties. Liposomes containing resin oils or extracts from Copaifera sabulicola leaves were prepared and characterized. The liposomes showed cytotoxic effects against cancer cells and have potential applications in chemotherapy.

PHARMACEUTICS (2023)

Article Biochemistry & Molecular Biology

Genipa americana L.: A New Phytochemical for White Hair Coloring

Andrea V. Machado, Luana R. O. Menezes, Adilson A. M. Santana, Maria N. Marques, Adriana K. de Lima, Amanda Cano, Patricia Severino, Eliana B. Souto, Juliana C. Cardoso

Summary: This work describes a new hair dyeing method using geniposide to react with the amino group in hair keratin. The study evaluated the effects of reaction conditions on color change, hair morphology, and mechanical properties. The results showed that geniposide treatment can significantly change hair color and affect its mechanical properties and morphology.

CHEMISTRY & BIODIVERSITY (2023)

Review Pharmacology & Pharmacy

Antimicrobial Bacterial Metabolites: Properties, Applications and Loading in Liposomes for Site-specific Delivery

Camilla A. S. Valenca, Ana A. T. Barbosa, Silvio S. Dolabella, Patricia Severino, Carla Matos, Karolline Krambeck, Eliana B. Souto, Sona Jain

Summary: The global problem of antibiotic resistance is a serious threat to the treatment of infectious diseases. New antimicrobials and improved delivery systems are needed. Bacterial secondary metabolites have potential as antimicrobial agents, but few molecules make it to the clinical phase.

CURRENT PHARMACEUTICAL DESIGN (2023)

Review Food Science & Technology

Biopharmaceutical applications of Opuntia ficus-indica: bibliometric map, bioactivities and extraction techniques

Beatriz N. Guedes, Faezeh Fathi, Amelia M. Silva, Antonello Santini, M. Beatriz P. P. Oliveira, Eliana B. Souto

Summary: Prickly pear, also known as Opuntia ficus-indica (OFI), is a beneficial plant with dietary fibers, vitamins and various bioactive compounds. This article reviews its nutritional composition, biological activities, and extraction techniques commonly used for different parts of the plant.

EUROPEAN FOOD RESEARCH AND TECHNOLOGY (2023)

Article Pharmacology & Pharmacy

Development and characterization of a poloxamer hydrogel composed of human mesenchymal stromal cells (hMSCs) for reepithelization of skin injuries

Cristina Galocha-Leon, Cristina Antich, Ana Voltes-Martinez, Juan A. Marchal, Mireia Mallandrich, Lyda Halbaut, Maria J. Rodriguez-Lagunas, Eliana B. Souto, Beatriz Clares-Naveros, Patricia Galvez-Martin

Summary: This study developed a hydrogel loaded with human mesenchymal stromal cells (hMSCs) for the treatment of superficial skin injuries. The hydrogel, using poloxamer 407 as a biomaterial, showed excellent physical, mechanical, morphological, and biological properties. It demonstrated high swelling capacity and did not affect the viability and healing capacity of keratinocytes.

INTERNATIONAL JOURNAL OF PHARMACEUTICS (2023)

Article Instruments & Instrumentation

UV-polymerizable methacrylated gelatin (GelMA)-based hydrogel containing tannic acids for wound healing

Marismar F. do Nascimento, Clauberto R. de Oliveira, Juliana C. Cardoso, Natalia C. T. Bordignon, Rogerio Gondak, Patricia Severino, Eliana B. Souto, Ricardo L. C. de Albuquerque Jr

Summary: This study aimed to develop and analyze the healing properties of GelMA containing AEPG, gallic acid, or ellagic acid. The results showed that GPG and GGA significantly accelerated wound closure, improved collagenization, increased histological grading, and hastened myofibroblast differentiation.

DRUG DELIVERY AND TRANSLATIONAL RESEARCH (2023)

Article Instruments & Instrumentation

Psidium guajava L. phenolic compound-reinforced lamellar scaffold for tracheal tissue engineering

Venancio A. Amaral, Juliana Ferreira de Souza, Thais F. R. Alves, Jose M. de Oliveira Junior, Patricia Severino, Norberto Aranha, Eliana B. Souto, Marco V. Chaud

Summary: The aim of this work was to develop a dense lamellar scaffold for tracheal tissue regeneration using phenolic compounds from Psidium guajava Linn. Fourier transform infrared spectroscopy and differential scanning calorimetry confirmed chemical interactions between the polymers and cross-linking of phenolic compounds. Morphological analyses showed scaffolds with porosity and a porous surface structure. The addition of phenolic compounds modulated the morphological and mechanical properties of the scaffolds.

DRUG DELIVERY AND TRANSLATIONAL RESEARCH (2023)

Article Biochemistry & Molecular Biology

Biomedical and Nutritional Applications of Lactoferrin

Carlotta Coccolini, Elisa Berselli, Cristina Blanco-Llamero, Faezeh Fathi, M. Beatriz P. P. Oliveira, Karolline Krambeck, Eliana B. Souto

Summary: Lactoferrin (Lf) is a glycoprotein with the ability to bind iron and exhibits numerous biological activities such as antibacterial, antiviral, antifungal, anti-tumour, anti-obesity, antioxidant, anti-inflammatory, and immunomodulatory effects. It has shown potential in cancer treatment, neuroprotection, and even as a prophylaxis for COVID-19.

INTERNATIONAL JOURNAL OF PEPTIDE RESEARCH AND THERAPEUTICS (2023)

Article Nanoscience & Nanotechnology

Dually Active Apigenin-Loaded Nanostructured Lipid Carriers for Cancer Treatment

Lorena Bonilla-Vidal, Marta Switalska, Marta Espina, Joanna Wietrzyk, Maria Luisa Garcia, Eliana B. Souto, Anna Gliszczynska, Elena Sanchez Lopez

Summary: APG-NLC containing rosehip oil was developed, which exhibited favorable physicochemical characteristics, long-term stability, sustained release of APG, and cytotoxicity in cancer cells without affecting healthy cells.

INTERNATIONAL JOURNAL OF NANOMEDICINE (2023)

Article Pharmacology & Pharmacy

Moxifloxacin loaded microspheres-composed gel for controlled release and enhanced penetration in ocular tissues: In vitro, ex vivo and in vivo proof of concept

Smita Khairnar, Elena Sanchez-Lopez, Eliana B. Souto, Kamalinder K. Singh

Summary: Microspheres-enriched ocular gels were developed as a controlled release system for moxifloxacin hydrochloride. The ocular gel containing microspheres showed improved drug release, penetration, and therapeutic efficacy, with reduced administration frequency, which may improve patient compliance to ocular treatment.

JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY (2023)

Review Agriculture, Dairy & Animal Science

Dietary factors in nonalcoholic fatty liver disease: impacts on human and animal health - a review

Andy Wai Kan Yeung, Natalia Ksepka, Maima Matin, Dongdong Wang, Eliana B. Souto, Jivko Stoyanov, Javier Echeverria, Devesh Tewari, Jaroslaw Olav Horbanczuk, Massimo Lucarini, Alessandra Durazzo, Joanna Marchewka, Vasil Pirgozliev, Ren-You Gan, Nikolay T. Tzvetkov, Kamil Wysocki, Farhan Bin Matin, Olena Litvinova, Anupam Bishayee, Hari Prasad Devkota, Amr El-Demerdash, Mladen Brncic, Antonello Santini, Olaf. K. Horbanczuk, Michel-Edwar Mickael, Michal Lawinski, Niranjan Das, Bodrun Naher Siddiquea, Dalibor Hrg, Atanas G. Atanasov

Summary: This study provides a quantitative literature analysis on the influence of diet on non-alcoholic fatty liver disease (NAFLD). The analysis reveals that China and the United States are significant contributors to this field, and key dietary compounds such as resveratrol and polyphenols are frequently mentioned and cited, showing potential benefits for NAFLD in both human and animal studies.

ANIMAL SCIENCE PAPERS AND REPORTS (2023)

Article Biophysics

Functional surfaces for exosomes capturing and exosomal microRNAs analysis

Cristina Potrich, Anna Pedrotti, Cecilia Pederzolli, Lorenzo Lunelli

Summary: This study developed different functional surfaces for capturing exosomes and verified their effectiveness through experiments. Among them, the negatively-charged surface performed the best, capturing a large number of exosomes and successfully analyzing their biomarkers.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Fucoidan-mediated targeted delivery of dasatinib-loaded nanoparticles amplifies apoptosis and endows cytotoxic potential in triple-negative breast cancer

Brojendra Nath Saren, Srushti Mahajan, Mayur Aalhate, Rahul Kumar, Essha Chatterjee, Indrani Maji, Ujala Gupta, Santosh Kumar Guru, Pankaj Kumar Singh

Summary: This study developed P-selectin-targeted dasatinib nanoparticles coated with chitosan and fucoidan (DST-CH-FUC-NPs), which showed sustained release, reduced hemolytic potential, increased cytotoxicity and cellular uptake compared to free dasatinib. These nanoparticles also demonstrated enhanced ROS production, mitochondrial membrane potential damage, apoptosis induction, cell migration inhibition, and disruption of lysosomal membrane integrity.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Graphene oxide-doped chiral dextro-hydrogel promotes peripheral nerve repair through M2 polarization of macrophages

Weiping Deng, Xiaohui Li, Ya Li, Zhongbing Huang, Yulin Wang, Ning Mu, Juan Wang, Tunan Chen, Ximing Pu, Guangfu Yin, Hua Feng

Summary: This study demonstrates the importance of chirality in nerve repair by constructing a GO-phenylalanine derivative hydrogel system. In vivo experiments show that the dextro group significantly improves functional recovery and histological restoration in rat sciatic nerve repair models. The doped GO promotes angiogenesis and myelination. These results suggest that chirality plays a crucial role in promoting nerve regeneration.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Analysis of surfactant production by Bacillus cereus GX7 and optimization of fermentation conditions

Xiaoyan Wang, Jin Gao, Yu Gao, Linlin Zhang, Congchao Xu, Qintong Li, Lin Li, Jianliang Xue

Summary: In this study, a highly effective surfactant producer strain, Bacillus Cereus GX7, was isolated from the oil tank bottom sludge of Shengli Oil Field in China. The biosurfactant produced by GX7 was identified as surfactin, a lipopeptide surfactant, through TLC, FT-IR, and LC-MS/MS analysis. The fermentation process of GX7 was optimized using single-factor experiments, focusing on the composition of fermentation medium and fermentation conditions. Glucose and peptone were found to be the best carbon and nitrogen sources, and the optimum temperature, inoculum amount, pH, rotation speed, and fermentation time for the strain were determined to be 30°C, 1%, 7.5, 150 rpm, and 48 h, respectively. After optimization, the surface tension and emulsification index of the fermentation broth were 26.84 mN/m and 57.84%, respectively. Furthermore, the biosurfactant produced by GX7 demonstrated good stability over a wide range of temperature, pH, and salt concentration.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

A 3D physical model predicting favorable bacteria adhesion

Rodney Marcelo do Nascimento, Christine Grauby-Heywang, Houssem Kahli, Nesrine Debez, Laure Beven, Ivan Helmuth Bechtold, Touria Cohen Bouhacina

Summary: This article presents a theoretical model based on thermodynamic rules to assess the early stages of bacterial biofilm formation on different material surfaces. By utilizing morphological characteristics of bacteria and Atomic Force Microscopy images, the model generates a dataset of energetically minimized states, which can be correlated with bacterial adhesion states.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

UV-C driven reduction of nanographene oxide opens path for new applications in phototherapy

Filipa A. L. S. Silva, Licinia Timochenco, Raquel Costa-Almeida, Jose Ramiro Fernandes, Susana G. Santos, Fernao D. Magalhaes, Artur M. Pinto

Summary: The study demonstrates that by photoreducing nanosized graphene oxide using ultraviolet radiation, nanometric particles with high light-to-heat conversion efficiency and water stability can be obtained. These nanomaterials exhibit high absorption in the near-infrared region and show no cytotoxicity towards human cells, indicating their potential for safe therapy.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Impact of the physical properties of contact lens materials on the discomfort: role of the coefficient of friction

D. Costa, V. De Matteis, F. Treso, G. Montani, M. Martino, R. Rinaldi, M. Corrado, M. Cascione

Summary: This review primarily discusses the relationship between contact lens discomfort (CLD) and the surface properties of contact lenses (CLs), specifically the coefficient of friction (CoF). The review emphasizes the importance of introducing a standardized protocol for measuring CoF and calls for a more precise evaluation of the relationship between surface properties and comfort in CLs users.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Structural rearrangement of elastin under oxidative stress

Debdip Brahma, Tamal Sarkar, Rupal Kaushik, Akshay Narayan Sarangi, Amar Nath Gupta

Summary: This in-vitro study evaluates the effect of reactive oxygen species (ROS) on the structural rearrangement of elastin. The results show that oxidative stress leads to a decrease in protein size and changes in secondary structure, potentially promoting protein aggregation. This study is important for therapeutics aiming to prevent elastin degradation and aging.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

A dual-functional strontium-decorated titanium implants that guides the immune response for osseointegration of osteoporotic rats

Xin Yang, Qiang Wang, Chaoxi Yan, Degang Huang, Yinchang Zhang, Huazheng He, Shouliang Xiong, Congming Li, Pingbo Chen, Tingjun Ye, Dan Hu, Lei Wang

Summary: This study presents a practical and effective strategy to improve osseointegration in patients with osteoporosis. By coating titanium implants with polydopamine followed by strontium modification, the bi-functional implants promote bone regeneration and immune regulation. The results show good biocompatibility, sustained release of strontium ions, and stable osseointegration between bone tissues and implants.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Colloidal crystals array enabled bionic biliary stent for efficient domestic biofluid management

Sengwang Fu, Jianping Zhu, Zhijun Jiang, Yue Cao, Yufei Chen, Lihao Zhang, Sunlong Li, Weipeng Lu, Chengbin Miao, Qing He, Qi Li, Weixing Zhang, Lehao Ren, Yachun Li, Hongchao Shi, Cihui Liu

Summary: Effective management of biofluids is crucial for in vivo surgical interventions. Recent advances include self-sealing needles, drug-eluting stents, and shear-thinning hydrogels. However, complications associated with intestinal mucosal injury and secondary damage still persist. In this study, researchers developed an interpenetrating Janus wettability stent coating that enables unidirectional draining of excessive biofluid. They also demonstrated directional biofluid movement using a self-pumping dressing with potential applications in biofluid collection and disease diagnosis through metal ion detection. This integrated system presents an opportunity for designing wound dressings with effective biofluid management and metal ion detection capabilities.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Biomaterials coated with zwitterionic polymer brush demonstrated significant resistance to bacterial adhesion and biofilm formation in comparison to brush coatings incorporated with antibiotics

Maryam Hassani, Mojtaba Kamankesh, Mazda Rad-Malekshahi, Kobra Rostamizadeh, Farhad Rezaee, Ismaeil Haririan, Seyed Mojtaba Daghighi

Summary: Bacterial adhesion and biofilm formation on the surface of biomaterial implants is a critical problem, and a polymer brush coating with antiadhesive and antimicrobial properties has proven to be highly effective in resolving this issue.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Croconaine conjugated cationic polymeric nanoparticles for NIR enhanced bacterial killing

Huaihong Zhang, Na Liu, Yuting Zhang, Hui Cang, Zhaosheng Cai, Ziqun Huang, Jun Li

Summary: A functionalized cationic polymer, CR-PQAC, was designed and synthesized for photothermal enhanced antimicrobial therapy. The CR-PQAC nanoparticles exhibited significant antibacterial activity and low cytotoxicity against mammalian cells.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

A repertoire of nanoengineered short peptide-based hydrogels and their applications in biotechnology

Ipsita Sahu, Priyadarshi Chakraborty

Summary: Peptide nanotechnology bridges the gap between materials and biological worlds by utilizing self-assembly of short-peptide building blocks. Hydrogels engineered from these short peptides show great potential in biomedical applications, but their weak mechanical properties and limited functional diversity need to be addressed. Nanoengineering the networks of these hydrogels by incorporating small molecules, polymers, and inorganic/carbon nanomaterials can enhance their mechanical properties and expand their functional diversity.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Conductive 3D Ti3C2Tx MXene-Matrigel hydrogels promote proliferation and neuronal differentiation of neural stem cells

Hao Wei, Yajun Gu, Ao Li, Panpan Song, Dingding Liu, Feihu Sun, Xiaofeng Ma, Xiaoyun Qian

Summary: In this study, a stable three-dimensional conductive hydrogel was prepared by cross-linking MXenes to Matrigel hydrogel. The conductive hydrogel promotes the proliferation and differentiation of NSCs, providing new strategies for neural tissue engineering.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)

Article Biophysics

Effect of the oxygenic groups on activated carbon on its hemocompatibility

Yue Zhong, Xiaoli Ge, Juan Zhang, Qun Wei, Feng Wang, Yongke Zhong

Summary: The effect of oxygenic groups on the hemocompatibility of activated carbon was studied through liquid-phase oxidation and subsequent heat treatment. Results showed that the presence of oxygenic groups improved hemocompatibility, while their removal decreased it.

COLLOIDS AND SURFACES B-BIOINTERFACES (2024)