Quality by design optimization of microemulsions for topical delivery of Passiflora setacea seed oil

• Daniel T. Pereira,
• Douglas Dourado,
• Danielle T. Freire,
• Dayanne L. Porto,
• Cícero F. S. Aragão,
• Myla L. de Souza,
• Guilherme R. S. de Araujo,
• Ana Maria Costa,
• Wógenes N. Oliveira,
• Anne Sapin-Minet,
• Éverton N. Alencar and
• Eryvaldo Sócrates T. Egito

Beilstein J. Nanotechnol. 2025, 16, 2116–2131, doi:10.3762/bjnano.16.146

• solubilization capacity, ability to enhance dermal permeation, and cost-effectiveness make microemulsions attractive carriers compared with other delivery systems [6][7]. Nevertheless, conventional microemulsions typically require high concentrations of surfactants, which may raise safety concerns such as

Beyond the shell: exploring polymer–lipid interfaces in core–shell nanofibers to carry hyaluronic acid and β-caryophyllene

• Aline Tavares da Silva Barreto,
• Francisco Alexandrino-Júnior,
• Bráulio Soares Arcanjo,
• Paulo Henrique de Souza Picciani and
• Kattya Gyselle de Holanda e Silva

Beilstein J. Nanotechnol. 2025, 16, 2015–2033, doi:10.3762/bjnano.16.139

• core–shell structure indicates the absence of core material at the surface, and that the shell structure does not possess pores that would allow permeation or direct contact of water molecules with the core, as evidenced by scanning electron microscopy (SEM) images. Electrospun nanofibers organize into

Targeting the vector of arboviruses Aedes aegypti with nanoemulsions based on essential oils: a review with focus on larvicidal and repellent properties

• Laryssa Ferreira do Nascimento Silva,
• Douglas Dourado,
• Thayse Silva Medeiros,
• Mariana Alice Gonzaga Gabú,
• Maria Cecilia Queiroga dos Santos,
• Daiane Rodrigues dos Santos,
• Mylena Lemos dos Santos,
• Gabriel Bezerra Faierstein,
• Rosângela Maria Rodrigues Barbosa and
• Fabio Rocha Formiga

Beilstein J. Nanotechnol. 2025, 16, 1894–1913, doi:10.3762/bjnano.16.132

• , volatility, and skin permeation of the active compounds, prolonging the repellent effect due to the controlled release of these compounds [151][152]. The mechanism of action may involve interference with the olfactory system of the mosquitoes, masking host signals and disrupting orientation behavior [147

Phytol-loaded soybean oil nanoemulsion as a promising alternative against Leishmania amazonensis

• Victória Louise Pinto Freire,
• Mariana Farias Alves-Silva,
• Johny W. de Freitas Oliveira,
• Matheus de Freitas Fernandes-Pedrosa,
• Alianda Maira Cornélio,
• Marcelo de Souza-Silva,
• Thayse Silva Medeiros and
• Arnóbio Antônio da Silva Junior

Beilstein J. Nanotechnol. 2025, 16, 1826–1836, doi:10.3762/bjnano.16.126

• formulation parameters – such as drug miscibility with the oil phase, droplet size, and size uniformity – have been directly correlated with permeation efficiency across the skin barrier [32][33]. Specifically, the encapsulation of lipophilic compounds like phytol in finely dispersed droplets within oil-in

• in the treatment against cutaneous leishmaniasis. Although no permeation assay was conducted in the present study, the physicochemical profile of PHYT-NE supports its potential for efficient skin interaction and warrants further investigation in permeation studies. As a future perspective, ex vivo

• permeation studies using porcine ear skin or synthetic membranes in Franz diffusion cells could be employed to further evaluate the cutaneous permeation profile of the phytol-loaded nanoemulsion. In addition to forming nanodroplets, nanoemulsions must maintain their structural and physicochemical integrity

Exploring the potential of polymers: advancements in oral nanocarrier technology

• Rousilândia de Araujo Silva,
• Igor Eduardo Silva Arruda,
• Luise Lopes Chaves,
• Mônica Felts de La Roca Soares and
• Jose Lamartine Soares Sobrinho

Beilstein J. Nanotechnol. 2025, 16, 1751–1793, doi:10.3762/bjnano.16.122

• investigated. These nanoparticles (NPs) preserve the bioactivity of the active compound during gastric transit and facilitate permeation through mucus and absorption by epithelial cells, enabling targeted delivery. In essence, PNs offer superior performance in protecting, targeting, and enhancing both the

• hydrophilic polymers (e.g., polyethylene glycol (PEG) or polysaccharides) or mucoadhesive agents such as chitosan, which can enhance colloidal stability, promote mucus permeation, and protect the nanocarrier from enzymatic degradation in the GIT. Such coatings have been explored to improve the pharmacokinetic

Prospects of nanotechnology and natural products for cancer and immunotherapy

• Jan Filipe Andrade Santos,
• Marcela Bernardes Brasileiro,
• Pamela Danielle Cavalcante Barreto,
• Ligiane Aranha Rocha and
• José Adão Carvalho Nascimento Júnior

Beilstein J. Nanotechnol. 2025, 16, 1644–1667, doi:10.3762/bjnano.16.116

• improvement in bioavailability and pharmacokinetics are based on increased solubility, observed, for example, by Chittasupho et al., improved permeation through biological barriers, as seen in the work of Huang et al., and protection against premetabolism and early elimination, as analyzed by Miguel et al

Synthesis and antibacterial properties of nanosilver-modified cellulose triacetate membranes for seawater desalination

• Lei Wang,
• Shizhe Li,
• Kexin Xu,
• Wenjun Li,
• Ying Li and
• Gang Liu

Beilstein J. Nanotechnol. 2025, 16, 1380–1391, doi:10.3762/bjnano.16.100

• membrane’s water flux. The PDA coating enhances the hydrophilicity of the membrane and maintains its water permeation properties. This membrane holds significant potential for enhancing the performance of seawater desalination membranes. As research in this field continues to advance, the potential for

• corresponding time on the permeate side. The permeation flux of the membrane was calculated utilizing the following formula (1). In the formula, Jw is the water flux, L·m−2·h−1; V is the volume of the permeate, L; A is the effective testing area of the membrane, m2; and Δt is the duration of sampling, h. The

Hydrogels and nanogels: effectiveness in dermal applications

• Jéssica da Cruz Ludwig,
• Diana Fortkamp Grigoletto,
• Daniele Fernanda Renzi,
• Wolf-Rainer Abraham,
• Daniel de Paula and
• Najeh Maissar Khalil

Beilstein J. Nanotechnol. 2025, 16, 1216–1233, doi:10.3762/bjnano.16.90

• pathophysiological processes through the incorporation of drugs for enhancing skin permeation brings out promising prospects for innovation which may arise in the drug delivery field. Keywords: cross-linking; drug delivery; formulation; nanogel; polymer; Introduction The systematic study of gels began in the mid

• ., they promote the disruption of the SC intercellular matrix [175] and/or extraction of the SC lipids [180]). Moreover, some penetration enhancers may operate by more than one permeation mechanism, which involves modifying either the diffusion of the drug in the SC or the solubility of the drug in the

• skin penetration enhancer. The cationic charge of the particles, combined with drug release in a slightly acidic environment, promoted an increase in drug permeation (ex vivo), as well as an augment in capecitabine toxicity against cancer cells in a HaCaT cell line MTT assay. This pH-sensitive behavior

Investigation of the solubility of protoporphyrin IX in aqueous and hydroalcoholic solvent systems

• Michelly de Sá Matsuoka,
• Giovanna Carla Cadini Ruiz,
• Marcos Luciano Bruschi and
• Jéssica Bassi da Silva

Beilstein J. Nanotechnol. 2025, 16, 1209–1215, doi:10.3762/bjnano.16.89

• -assembling properties of P407 make it suitable for advanced nanostructures drug delivery platforms, including polymeric microneedles and hydrogels, ensuring enhanced drug retention and permeation [15][17][18]. Therefore, the present study aimed to investigate the best solvent system for PpIX, in order to

A formulation containing Cymbopogon flexuosus essential oil: improvement of biochemical parameters and oxidative stress in diabetic rats

• Ailton Santos Sena-Júnior,
• Cleverton Nascimento Santana Andrade,
• Pedro Henrique Macedo Moura,
• Jocsã Hémany Cândido dos Santos,
• Cauãn Torres Trancoso,
• Eloia Emanuelly Dias Silva,
• Deise Maria Rego Rodrigues Silva,
• Ênio Pereira Telles,
• Luiz André Santos Silva,
• Isabella Lima Dantas Teles,
• Sara Fernanda Mota de Almeida,
• Daniel Alves de Souza,
• Jileno Ferreira Santos,
• Felipe José Aidar Martins,
• Ana Mara de Oliveira e Silva,
• Sandra Lauton-Santos,
• Guilherme Rodolfo Souza de Araujo,
• Cristiane Bani Correa,
• Rogéria De Souza Nunes,
• Lysandro Pinto Borges and
• Ana Amélia Moreira Lira

Beilstein J. Nanotechnol. 2025, 16, 617–636, doi:10.3762/bjnano.16.48

• stabilized by surfactants, with a very small droplet size (<100 nm), which facilitates their permeation through membranes [9]. In addition, MEs showed increased anti-inflammatory activity, reduced irritation, and improved the stability of EOs in previous studies [10][11]. Thus, from an innovative perspective

Size control of nanoparticles synthesized by pulsed laser ablation in liquids using donut-shaped beams

• Abdel Rahman Altakroury,
• Oleksandr Gatsa,
• Farbod Riahi,
• Zongwen Fu,
• Miroslava Flimelová,
• Andrei Samokhvalov,
• Stephan Barcikowski,
• Carlos Doñate-Buendía,
• Alexander V. Bulgakov and
• Bilal Gökce

Beilstein J. Nanotechnol. 2025, 16, 407–417, doi:10.3762/bjnano.16.31

• size can cause cellular damage or prevent membrane permeation for drug delivery [10]. Therefore, a fine and reproducible size control during NP synthesis is essential. Pulsed laser ablation in liquids (PLAL) allows for the synthesis of colloidal NPs offering numerous advantages, such as being

Radiosensitizing properties of dual-functionalized carbon nanostructures loaded with temozolomide

• Radmila Milenkovska,
• Nikola Geskovski,
• Dushko Shalabalija,
• Ljubica Mihailova,
• Petre Makreski,
• Dushko Lukarski,
• Igor Stojkovski,
• Maja Simonoska Crcarevska and
• Kristina Mladenovska

Beilstein J. Nanotechnol. 2025, 16, 229–251, doi:10.3762/bjnano.16.18

• surrounding, high levels and different mechanisms of drug resistance and radiation tolerance, as well as a blocking effect of the blood–brain–tumor barrier (BBTB) for drug permeation into the brain extracellular matrix lead to high recurrence rates (in up to 90% of patients) even when complete treatment is

• that particles with negative (and neutral) zeta potential have a higher capability to escape opsonization and accumulation in liver and spleen (which is a precondition for prolonged circulation time of the particles/TMZ). In addition, particles with suitable size (between 50 and 400 nm) for permeation

A review of metal-organic frameworks and polymers in mixed matrix membranes for CO₂ capture

• Charlotte Skjold Qvist Christensen,
• Nicholas Hansen,
• Mahboubeh Motadayen,
• Nina Lock,
• Martin Lahn Henriksen and
• Jonathan Quinson

Beilstein J. Nanotechnol. 2025, 16, 155–186, doi:10.3762/bjnano.16.14

• considerably impaired compared to that of the pristine MOF [86]. The major issue arising from such incompatibility is the formation of void defects within the MMM due to insufficient adhesion between the MOF interface and the polymer matrix. Such voids act as non-specific permeation sites [80]. Consequently

• layers are formed, decreasing the mass transfer resistance and increasing the gas permeation flux. Sutrisna et al. [98] fabricated a novel HFMMM consisting of an inner polyvinylidenfluorid (PVDF) porous support dip-coated with a highly permeable poly(1-trimethylsilyl-1-propyne) (PTMSP) gutter layer, a

• improved resistance to temperature and chemical factors over conventional HFMMMs [60][99]. Compared with traditional flat sheet MMMs, the significant decrease in the thickness of the dense, selective layer inherently decreases mass transfer resistance and enhances gas permeation flux [80][87], rendering

A nanocarrier containing carboxylic and histamine groups with dual action: acetylcholine hydrolysis and antidote atropine delivery

• Elina E. Mansurova,
• Andrey A. Maslennikov,
• Anna P. Lyubina,
• Alexandra D. Voloshina,
• Irek R. Nizameev,
• Marsil K. Kadirov,
• Anzhela A. Mikhailova,
• Polina V. Mikshina,
• Albina Y. Ziganshina and
• Igor S. Antipin

Beilstein J. Nanotechnol. 2025, 16, 11–24, doi:10.3762/bjnano.16.2

• through dialysis for 1.5 h using a 12000 Da pore dialysis bag. The size of p(Hist-CA) is approximately 12 ± 3 nm according to TEM, and it forms aggregates ranging in size from 80 to 150 nm (Figure 1a,b). The molecular weight of p(Hist-CA) was determined using gel permeation chromatography (GPC). The GPC

Mechanistic insights into endosomal escape by sodium oleate-modified liposomes

• Ebrahim Sadaqa,
• Satrialdi,
• Fransiska Kurniawan and
• Diky Mudhakir

Beilstein J. Nanotechnol. 2024, 15, 1667–1685, doi:10.3762/bjnano.15.131

• indicated by increased MSD values. Collectively, these changes destabilize the bilayer structure, facilitating endosomal membrane permeation and priming the bilayer for the structural rearrangements required for membrane fusion. The increased membrane fluidity and lipid disorder observed in the simulations

Polymer lipid hybrid nanoparticles for phytochemical delivery: challenges, progress, and future prospects

• Iqra Rahat,
• Pooja Yadav,
• Aditi Singhal,
• Mohammad Fareed,
• Jaganathan Raja Purushothaman,
• Mohammed Aslam,
• Raju Balaji,
• Sonali Patil-Shinde and
• Md. Rizwanullah

Beilstein J. Nanotechnol. 2024, 15, 1473–1497, doi:10.3762/bjnano.15.118

• environments. Because of the excellent pharmaceutical attributes and mucoadhesive characteristics, the THQ-PLHNPs show controlled release characteristics and manyfold enhanced intestinal permeation compared to free THQ suspension. Cell culture experiments suggested that the fabricated THQ-PLHNPs significantly

• against BC [101]. The developed THQ-PLHNPs gel showed much higher skin permeation and retention compared to the conventional THQ gel. The THQ-PLHNPs were non-irritant when applied to the skin. Furthermore, the developed gels showed higher antiproliferative activity against MCF-7 and MBD-MB-231 cells than

• CHS-based mucoadhesive PLHNPs in improving PRN’s intestinal permeation, oral bioavailability, and anti-BC activity [154]. The developed PLHNPs were optimized by the “Quality by Design” approach. The optimized PRN-PLHNPs were stable in the GI milieu and showed excellent mucoadhesive strength and

Nanotechnological approaches for efficient N2B delivery: from small-molecule drugs to biopharmaceuticals

• Selin Akpinar Adscheid,
• Akif E. Türeli,
• Nazende Günday-Türeli and
• Marc Schneider

Beilstein J. Nanotechnol. 2024, 15, 1400–1414, doi:10.3762/bjnano.15.113

• opportunity to modify the release profile of the drugs, enhance targeting efficiency, and improve nasal permeation during intranasal administration [21][22][23][24]. In general, the encapsulation of active pharmaceutical ingredients (APIs) into mucoadhesive DDSs can mitigate rapid mucociliary clearance [25

• mucin. While the presence of the mucin did not significantly alter the negative surface charge of the PLGA NPs, the more negative zeta potential values of the PLGA-chitosan NPs showed that there was an interaction with mucin. Following this, the RH-loaded NPs showed 3.22-fold enhanced drug permeation

• vivo permeation studies. The PLGA NPs showed size- and time-dependent uptake mechanisms. For instance, PLGA NPs with particle sizes of 80 and 175 nm were taken up after only 5 min in the lamina propria; after 15 min, PLGA NPs with a particle size of 520 nm were associated with nuclei. Additionally, the

Nanomedicines against Chagas disease: a critical review

• Maria Jose Morilla,
• Kajal Ghosal and
• Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 333–349, doi:10.3762/bjnano.15.30

• microfluidics, are still too costly for routine research in developing countries [138][139]. The therapeutic performance of intravenous nanomedicines strongly depends on the anatomical pathological context, mainly on the extent of inflammation or retention permeation effect, and the extracellular matrix

Berberine-loaded polylactic acid nanofiber scaffold as a drug delivery system: The relationship between chemical characteristics, drug-release behavior, and antibacterial efficiency

• Le Thi Le,
• Hue Thi Nguyen,
• Liem Thanh Nguyen,
• Huy Quang Tran and
• Thuy Thi Thu Nguyen

Beilstein J. Nanotechnol. 2024, 15, 71–82, doi:10.3762/bjnano.15.7

• nanofiber scaffold, a slow release of BBR was observed during the first 24 h (lag time), attributed to the hydrophobicity of the scaffold requiring a long time for water permeation. When the scaffold was wetted, BBR was fast released, reaching approximately 60% of the loaded BBR in 36 h. However, in the

Nanotechnological approaches in the treatment of schistosomiasis: an overview

• Lucas Carvalho,
• Michelle Sarcinelli and
• Beatriz Patrício

Beilstein J. Nanotechnol. 2024, 15, 13–25, doi:10.3762/bjnano.15.2

• unsaturated free fatty acid in the outer layer of human skin, is commonly used as a permeation promoter, inducing the disruption of the lipid structure of the membrane. de Oliveira et al. [85] showed in vitro that oleic acid encapsulated in polymeric nanoparticles could potentially be used in schistosomiasis

Elasticity, an often-overseen parameter in the development of nanoscale drug delivery systems

• Agnes-Valencia Weiss and
• Marc Schneider

Beilstein J. Nanotechnol. 2023, 14, 1149–1156, doi:10.3762/bjnano.14.95

• barriers besides cellular membranes need to be addressed. A few examples of these barriers are penetration in or permeation through mucus, skin penetration, overcoming the blood brain barrier, or extravasation from blood vessels. Another challenge is the accumulation of particulate drug delivery systems in

Nanotechnology – a robust tool for fighting the challenges of drug resistance in non-small cell lung cancer

• Filip Gorachinov,
• Fatima Mraiche,
• Diala Alhaj Moustafa,
• Ola Hishari,
• Yomna Ismail,
• Jensa Joseph,
• Maja Simonoska Crcarevska,
• Marija Glavas Dodov,
• Nikola Geskovski and
• Katerina Goracinova

Beilstein J. Nanotechnol. 2023, 14, 240–261, doi:10.3762/bjnano.14.23

• the lysosomes, exposing the PDMAEMA layer decorated with triphenylphosphonium (TPP) ligand to the environment. The TPP lipophilic cation is characterized by a large hydrophobic surface area, which facilitates its permeation throughout phospholipid bilayers, lysosomal escape due to the proton sponge

Orally administered docetaxel-loaded chitosan-decorated cationic PLGA nanoparticles for intestinal tumors: formulation, comprehensive in vitro characterization, and release kinetics

• Sedat Ünal,
• Osman Doğan and
• Yeşim Aktaş

Beilstein J. Nanotechnol. 2022, 13, 1393–1407, doi:10.3762/bjnano.13.115

• × 10−6 cm/s, respectively. Both nanoparticulate DCX formulations exhibited a significantly enhanced permeation across the cell line compared to free DCX (p < 0.05). Moreover, DCX-PLGA NPs increased Papp by 134.1% while CS/DCX-PLGA NPs increased Papp by 383.5%. The Papp of CS/DCX-PLGA NPs was

• , Ünal et al. examined the transportation of the positively and negatively charged NPs loaded with DCX through the Caco-2 cell layer. Cationic NPs showed an approximately 50% increase in penetration in comparison with anionic NPs [73]. In another study, Sheng et al. investigated the permeation of CS

Microneedle-based ocular drug delivery systems – recent advances and challenges

• Piotr Gadziński,
• Anna Froelich,
• Monika Wojtyłko,
• Antoni Białek,
• Julia Krysztofiak and
• Tomasz Osmałek

Beilstein J. Nanotechnol. 2022, 13, 1167–1184, doi:10.3762/bjnano.13.98

• closely packed cells equipped with tight junctions. Its thickness is approximately 50 μm [40], and it plays an important protective role. The posterior segment of the eye contains sclera, choroid, Bruch’s membrane, and blood–retinal barrier, which further prevent drug permeation. The thickness of the

• sclera, a membrane composed of randomly scattered collagen fibers, ranges from 0.5 to 1 mm, depending on the region of occurrence [41]. While the sclera is another barrier preventing drug permeation, the choroid is responsible for drug elimination. The blood–retinal barrier is connected to the retinal

• vascular endothelium with tight junctions hampering the permeation of active ingredients to the intraocular area. When designing non-invasive ophthalmic drug dosage forms, the main aim is to improve the bioavailability by increasing the diffusion across sclera, cornea, and conjunctiva [42]. In the case of

Ciprofloxacin-loaded dissolving polymeric microneedles as a potential therapeutic for the treatment of S. aureus skin infections

• Sharif Abdelghany,
• Walhan Alshaer,
• Yazan Al Thaher,
• Maram Al Fawares,
• Amal G. Al-Bakri,
• Saja Zuriekat and
• Randa SH. Mansour

Beilstein J. Nanotechnol. 2022, 13, 517–527, doi:10.3762/bjnano.13.43

• , and the zone of inhibition was measured in millimeters using a ruler (Figure 3). Statistical analysis The results are presented as means ± standard deviation. Statistical comparison between microneedles and free CIP gel, in terms of ciprofloxacin permeation, was made using GraphPad Prism software (ver

• [54]. Skin deposition study One-way ANOVA analysis showed a significant difference in the permeation of ciprofloxacin between the free CIP gel and CIP_MN1, after one hour and after 12 h (P value = 0.015). Moreover, the results also showed that the deposition of the incorporated drug into deeper layers