4.8 Article

Surface bioengineering of diatomite based nanovectors for efficient intracellular uptake and drug delivery

Journal

NANOSCALE
Volume 7, Issue 47, Pages 20063-20074

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr05173h

Keywords

-

Funding

  1. Italian National Operative Program [PON01_02782]
  2. Academy of Finland [252215, 281300]
  3. University of Helsinki Research Funds
  4. Biocentrum Helsinki
  5. European Research Council [310892]
  6. European Research Council (ERC) [310892] Funding Source: European Research Council (ERC)

Ask authors/readers for more resources

Diatomite is a natural porous silica material of sedimentary origin. Due to its peculiar properties, it can be considered as a valid surrogate of synthetic porous silica for nano-based drug delivery. In this work, we exploit the potential of diatomite nanoparticles (DNPs) for drug delivery with the aim of developing a successful dual-biofunctionalization method by polyethylene glycol (PEG) coverage and cell-penetrating peptide (CPP) bioconjugation, to improve the physicochemical and biological properties of the particles, to enhance the intracellular uptake in cancer cells, and to increase the biocompatibility of 3-aminopropyltriethoxysilane (APT) modified-DNPs. DNPs-APT-PEG-CPP showed hemocompatibility for up to 200 mu g mL(-1) after 48 h of incubation with erythrocytes, with a hemolysis value of only 1.3%. The cytotoxicity of the modified-DNPs with a concentration up to 200 mu g mL(-1) and incubation with MCF-7 and MDA-MB-231 breast cancer cells for 24 h, demonstrated that PEGylation and CPP-bioconjugation can strongly reduce the cytotoxicity of DNPs-APT. The cellular uptake of the modified-DNPs was also evaluated using the above mentioned cancer cell lines, showing that the CPP-bioconjugation can considerably increase the DNP cellular uptake. Moreover, the dual surface modification of DNPs improved both the loading of a poorly water-soluble anticancer drug, sorafenib, with a loading degree up to 22 wt%, and also enhanced the drug release profiles in aqueous solutions. Overall, this work demonstrates that the biofunctionalization of DNPs is a promising platform for drug delivery applications in cancer therapy as a result of its enhanced stability, biocompatibility, cellular uptake, and drug release profiles.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Chemistry, Multidisciplinary

Nanostructured multifunctional stimuli-responsive glycopolypeptide-based copolymers for biomedical applications

Mahsa Sedighi, Zahra Mahmoudi, Alireza Ghasempour, Mehdi Shakibaie, Fahimeh Ghasemi, Mahsa Akbari, Samin Abbaszadeh, Ebrahim Mostafavi, Helder A. Santos, Mohammad-Ali Shahbazi

Summary: Inspired by natural resources, glycopolypeptide biopolymers have emerged as a new form of biopolymers in biomedical applications. They have well-defined secondary structures and pendant glycosides, and the ability to self-assemble into diverse structures. The nanostructures of glycopolypeptides have opened up new perspectives in drug delivery, diagnosis, and regenerative medicine due to their stable three-dimensional structures, high drug loading efficiency, excellent biocompatibility, and biodegradability.

JOURNAL OF CONTROLLED RELEASE (2023)

Article Engineering, Electrical & Electronic

Enhancement of optical, morphological and electronic properties of MoS2 thin film by annealing to improve the performance of silicon solar cells

Mohammad Shahbazi, Mohammad Reza Khanlary, Anahita Taherkhani

Summary: In this study, molybdenum disulfide (MoS2) nanostructures were prepared using spray pyrolysis. The optical and structural properties of the prepared samples were characterized using various spectroscopic techniques. The transparency of the films prepared was observed through the transmission spectrum. The efficiency of silicon photovoltaic cells was enhanced by the deposition of MoS2 layer, with the highest efficiency of 11.9% achieved when the MoS2 layer was annealed at 500 degrees C in an argon gas environment.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2023)

Article Plant Sciences

Arbuscular mycorrhizal colonization leads to a change of hormone profile in micropropagated plantlet Satureja khuzistanica Jam

Leila Mirjani, Azam Salimi, Maryam Shahbazi, Mohammad-Reza Hajirezaei, Mohammad Matinizadeh, Khadijeh Razavi, Seyed Mohsen Hesamzadeh Hejazi

Summary: The role of phytohormones in the acclimation of micropropagated plantlet inoculated with AM was investigated. The results showed that the concentrations of IAA and cis-zeatin increased, while ABA concentration decreased. AM was found to reduce transition stress by modifying ABA and jasmonate concentrations.

JOURNAL OF PLANT PHYSIOLOGY (2023)

Article Materials Science, Multidisciplinary

Recent approaches for enhancing the performance of dissolving microneedles in drug delivery applications

Tomas Bauleth-Ramos, Nesma El-Sayed, Flavia Fontana, Maria Lobita, Mohammad-Ali Shahbazi, Helder A. Santos

Summary: Dissolving microneedles (dMNs) are water-soluble polymer drug delivery systems that have become popular for transdermal drug delivery. They offer advantages such as fast dissolution, short application time, and no biohazard risk, making them suitable for various biomedical and pharmaceutical applications. The formulation of successful dMNs requires careful consideration of patch design, needles geometry, polymer composition, method of formation, and payloads, as these factors directly affect the mechanical properties and efficacy of the microneedles. This review serves as a guide for dMN formulation, discussing the challenges at each step and strategies to optimize their administration and drug release.

MATERIALS TODAY (2023)

Article Nanoscience & Nanotechnology

Injectable Nanocomposite Hydrogels of Gelatin-Hyaluronic Acid Reinforced with Hybrid Lysozyme Nanofibrils-Gold Nanoparticles for the Regeneration of Damaged Myocardium

Tiago Carvalho, Raquel Bartolo, Sonia N. Pedro, Bruno F. A. Valente, Ricardo J. B. Pinto, Carla Vilela, Mohammad-Ali Shahbazi, Helder A. Santos, Carmen S. R. Freire

Summary: Biopolymeric injectable hydrogels have been developed for myocardial regeneration applications, but they usually lack desired functionalities. In this study, gold nanoparticles (AuNPs) were synthesized using lysozyme nanofibrils (LNFs) as nanotemplates and incorporated into gelatin-hyaluronic acid (HA) hydrogels. The resulting nanocomposite hydrogels showed improved properties such as rheological properties, mechanical resilience, antioxidant activity, and electrical conductivity. The presence of AuNPs also allowed the hydrogels to be monitorable through computer tomography. This work demonstrates the excellent potential of LNFs and AuNPs@LNFs for formulating functional injectable biopolymeric nanocomposite hydrogels for myocardial regeneration applications.

ACS APPLIED MATERIALS & INTERFACES (2023)

Article Chemistry, Multidisciplinary

Controlled Interfacial Polymer Self-Assembly Coordinates Ultrahigh Drug Loading and Zero-Order Release in Particles Prepared under Continuous Flow

Pei Zhang, Yingxin Liu, Guobing Feng, Cong Li, Jun Zhou, Chunyang Du, Yuancheng Bai, Shuai Hu, Tianhe Huang, Guan Wang, Peng Quan, Jouni Hirvonen, Jin Fan, Helder A. Santos, Dongfei Liu

Summary: Microparticles with ultrahigh drug loading and zero-order release of protein payloads are successfully engineered through controlled interfacial self-assembly of polymers. Protein molecules are transformed into nanoparticles covered with a polymer layer to improve their miscibility with carrier materials. The resulting microparticles achieve superior encapsulation efficiency and controlled payload release, enabling efficient glycemic control in type 1 diabetes.

ADVANCED MATERIALS (2023)

Article Biochemistry & Molecular Biology

ZnO Tetrapods for Label-Free Optical Biosensing: Physicochemical Characterization and Functionalization Strategies

Monica Terracciano, Simas Rackauskas, Andrea Patrizia Falanga, Sara Martino, Giovanna Chianese, Francesca Greco, Gennaro Piccialli, Guido Viscardi, Luca De Stefano, Giorgia Oliviero, Nicola Borbone, Ilaria Rea

Summary: The physicochemical properties of three different ZnO tetrapodal nanostructures (ZnO-Ts) synthesized by a combustion process were studied and evaluated for label-free biosensing purposes. The chemical reactivity of ZnO-Ts was explored by quantifying the available functional hydroxyl groups (-OH) on the transducer surface necessary for biosensor development. The best ZnO-T sample was chemically modified and bioconjugated with biotin as a model bioprobe, confirming their suitability for biosensing applications through streptavidin target detection experiments.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2023)

Article Chemistry, Medicinal

Synthesis of Brominated Lactones Related to Mycalin A: Selective Antiproliferative Activity on Metastatic Melanoma Cells and Inhibition of the Cell Migration

Domenica Capasso, Paola Marino, Sonia Di Gaetano, Nicola Borbone, Monica Terracciano, Roberta Trani, Caterina Longo, Vincenzo Piccialli

Summary: Several five-membered bromolactones were synthesized from D-xylonolactone and D-ribonolactone, which are related to the C1-C5 portion of mycalin A lactone. The bromination of D-ribonolactone with HBr/AcOH, without transesterification, resulted in the majority of the acetylated lactones investigated. The evaluation of their anti-tumor activity indicated that the acetates possess cytotoxicity towards multiple cancer cells, with selectivity towards tumor cells and limited toxicity on healthy cells.

MARINE DRUGS (2023)

Review Polymer Science

Multifunctional Self-Assembled Peptide Hydrogels for Biomedical Applications

Mahsa Sedighi, Neha Shrestha, Zahra Mahmoudi, Zahra Khademi, Alireza Ghasempour, Hamideh Dehghan, Seyedeh Fahimeh Talebi, Maryam Toolabi, Veronique Preat, Bozhi Chen, Xindong Guo, Mohammad-Ali Shahbazi

Summary: Self-assembly is a growth mechanism in nature to form minimum energy structures through local interactions. Self-assembled peptides can design and fabricate various structures using physical interactions between building blocks. Peptide hydrogels, with bioactivity, biocompatibility and biodegradability, have versatile applications in biomedical fields such as drug delivery, tissue engineering, biosensing, and disease treatment.

POLYMERS (2023)

Article Chemistry, Multidisciplinary

Bioinspired Polyacrylic Acid-Based Dressing: Wet Adhesive, Self-Healing, and Multi-Biofunctional Coacervate Hydrogel Accelerates Wound Healing

Lingshuang Wang, Lian Duan, Ga Liu, Jianfeng Sun, Mohammad-Ali Shahbazi, Subhas C. C. Kundu, Rui L. L. Reis, Bo Xiao, Xiao Yang

Summary: Polyacrylic acid (PAA) and its derivatives are commonly used as matrices in wound dressings, but their weak wet adhesion limits their clinical application. In this study, a PAA-based coacervate hydrogel with strong wet adhesion capability is created by mixing PAA copolymers with isoprenyl oxy poly(ethylene glycol) ether and tannic acid. The coacervate exhibits solid adhesion to both dry and wet substrates, with an adhesive strength to skin of 23.4 kPa and 70% adhesion underwater. It also possesses desirable self-healing and extensible properties, making it suitable for joints that undergo frequent movement. The coacervate demonstrates antibacterial activity, facilitates fibroblast migration, modulates macrophage polarization, shortens hemostatic time, and promotes collagen deposition, angiogenesis, and epithelialization, suggesting its promising potential as a wound dressing in medical translation.

ADVANCED SCIENCE (2023)

Review Pharmacology & Pharmacy

Emerging strategies to bypass transplant rejection via biomaterial-assisted immunoengineering: Insights from islets and beyond

Samin Abbaszadeh, Vahideh Nosrati-Siahmazgi, Kiyan Musaie, Saman Rezaei, Mostafa Qahremani, Bo Xiao, Helder A. Santos, Mohammad-Ali Shahbazi

Summary: Novel transplantation techniques are being developed to preserve the function of impaired tissues or organs. However, current technologies face challenges such as graft rejection by the immune system and the need for long-term immunosuppression. Thus, the development of biomaterial-based immunoengineering strategies has gained attention as a potential solution.

ADVANCED DRUG DELIVERY REVIEWS (2023)

Article Chemistry, Multidisciplinary

Enhancing Apoptosome Assembly via Mito-Biomimetic Lipid Nanocarrier for Cancer Therapy

Huijie Han, Jie Chen, Jiachen Li, Alexandra Correia, Raquel Bartolo, Mohammad-Ali Shahbazi, Tambet Teesalu, Shiqi Wang, Wenguo Cui, Helder A. Santos

Summary: Apoptosis is a programmed cell death process responsible for abnormal cell clearance. Cancer cells often develop mechanisms to escape apoptosis, posing a challenge in cancer treatment. A biomimetic lipid nanocarrier that mimics mitochondrial Cytochrome C binding has been developed. This nanocarrier shows great potential in pro-apoptosis cancer therapy, reducing ATP level and promoting apoptosome assembly, leading to higher apoptosis and anti-tumor efficacy.

ADVANCED FUNCTIONAL MATERIALS (2023)

Article Engineering, Biomedical

A nano-conductive osteogenic hydrogel to locally promote calcium influx for electro-inspired bone defect regeneration

Congcong Yu, Xiaozhang Ying, Mohammad-Ali Shahbazi, Linjun Yang, Zaiqiang Ma, Lin Ye, Wentao Yang, Rongtai Sun, Tianyuan Gu, Ruikang Tang, Shunwu Fan, Shasha Yao

Summary: Conductive nano-materials and electrical stimulation can be used for synergetic therapy in ordinary excitable tissue repair. In this study, a novel nano-conductive hydrogel was synthesized for electro-inspired bone tissue regeneration. The hydrogel demonstrated excellent electroactivity, biocompatibility, and osteoinductivity, and had the potential to enhance cellular functionality by activating the TGF-beta/Smad2 signaling pathway. In vivo experiments showed that the nano-conductive hydrogel with electrical stimulation significantly promoted electro-inspired bone defect regeneration.

BIOMATERIALS (2023)

Review Medicine, Research & Experimental

Targeted protein degradation for the treatment of Parkinson's disease: Advances and future perspective

Roshanak Amirian, Mehdi Azadi Badrbani, Hossein Derakhshankhah, Zhila Izadi, Mohammad-Ali Shahbazi

Summary: Parkinson's disease is a neurodegenerative disorder characterized by the misfolding and aggregation of α-synuclein. Targeted Protein Degradation is an emerging approach that shows promise in treating Parkinson's disease by selectively breaking down specific proteins.

BIOMEDICINE & PHARMACOTHERAPY (2023)

Article Engineering, Chemical

Strategies to prevent water soluble drug leakage from nanovesicles in blood circulation: A coarse-grained molecular study

Yun Hao Feng, Wei Xin Guo, Xiaobin Li, Jiahui Liu, Vahideh Nosrati-Siahmazgi, Maryam Toolabi, Wen Min Fei, Yong Cui, Bo Zhi Chen, Mohammad-Ali Shahbazi, Li Juan Zhang, Can Yang Zhang, Xin Dong Guo

Summary: Nanovesicles have been widely studied and used in biomedical applications, but premature leakage of water-soluble drugs hinders their clinical use. Developing effective strategies to prevent leakage is crucial. In this study, we utilized coarse-grained molecular simulations to explore strategies for leakage inhibition. We investigated the effects of cholesteryl hemisuccinate doping and gold nanoparticles on the morphology and structure of nanovesicles. Our findings suggest that cholesteryl hemisuccinate can improve hole defects in the hydrophobic layer, adjusting drug diffusion. Additionally, we studied the effects of particle size, concentration, and surface chemical properties of gold nanoparticles on drug leakage. Physical cross-linking of gold nanoparticles led to increased drug leakage, but surface modification improved dispersion and reduced side effects.

CHEMICAL ENGINEERING SCIENCE (2023)

Article Chemistry, Multidisciplinary

Exploring the degradation of silver nanowire networks under thermal stress by coupling in situ X-ray diffraction and electrical resistance measurements

Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet

Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Recording physiological and pathological cortical activity and exogenous electric fields using graphene microtransistor arrays in vitro

Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives

Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Metal oxide-embedded carbon-based materials for polymer solar cells and X-ray detectors

Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani

Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Peptide-mediated targeted delivery of SOX9 nanoparticles into astrocytes ameliorates ischemic brain injury

Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim

Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Spontaneous unbinding transition of nanoparticles adsorbing onto biomembranes: interplay of electrostatics and crowding

Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu

Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Autonomous nanomanufacturing of lead-free metal halide perovskite nanocrystals using a self-driving fluidic lab

Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani

Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

In situ growth of a redox-active metal-organic framework on electrospun carbon nanofibers as a free-standing electrode for flexible energy storage devices

Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin

Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

A NIR-driven green affording-oxygen microrobot for targeted photodynamic therapy of tumors

Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu

Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Novel hollow MoS2@C@Cu2S heterostructures for high zinc storage performance

Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai

Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Mechanistic elucidation of the catalytic activity of silver nanoclusters: exploring the predominant role of electrostatic surface

Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee

Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Facile green synthesis of wasted hop-based zinc oxide nanozymes as peroxidase-like catalysts for colorimetric analysis

Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He

Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Impact of channel nanostructures of porous carbon particles on their catalytic performance

Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim

Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Fabrication of a tough, long-lasting adhesive hydrogel patch via the synergy of interfacial entanglement and adhesion group densification

Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong

Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Strongly coupled plasmonic metal nanoparticles with reversible pH-responsiveness and highly reproducible SERS in solution

Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He

Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.

NANOSCALE (2024)

Article Chemistry, Multidisciplinary

Unlocking the full potential of citric acid-synthesized carbon dots as a supercapacitor electrode material via surface functionalization

Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc

Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.

NANOSCALE (2024)