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Search for "near infrared" in Full Text gives 129 result(s) in Beilstein Journal of Nanotechnology.

Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study

  • Zeynep Özcan and
  • Afife Binnaz Hazar Yoruç

Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24

Graphical Abstract
  • multifunctional PEGylated magnetic nanoparticles coated with polydopamine (PDA) exhibit strong near-infrared absorption because of the PDA layer and have the ability to deliver drugs under a magnetic field owing to their superparamagnetism [51]. During the drug loading studies, the anticancer drug vinorelbine was
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Published 28 Feb 2024

Nanocarrier systems loaded with IR780, iron oxide nanoparticles and chlorambucil for cancer theragnostics

  • Phuong-Thao Dang-Luong,
  • Hong-Phuc Nguyen,
  • Loc Le-Tuan,
  • Xuan-Thang Cao,
  • Vy Tran-Anh and
  • Hieu Vu Quang

Beilstein J. Nanotechnol. 2024, 15, 180–189, doi:10.3762/bjnano.15.17

Graphical Abstract
  • nanocarrier that can be loaded with the chemotherapeutic medication chlorambucil and magnetic resonance imaging agents (e.g., iron oxide nanoparticles and near-infrared fluorophore IR780) for theragnostics. Poly(lactic-co-glycolic acid) was combined with the aforementioned ingredients to generate poly(vinyl
  • diagnostics, near-infrared (NIR) fluorescent dyes are a potential alternative for the diagnosis and excision of residual malignant cancer, which is invisible by conventional visual examination and palpation [16][17][18]. Indocyanine green is the only NIR dye permitted for clinical use [19]. Dyes such as IR780
  • for near-infrared imaging and MRI. IR780 is used as the tracer during operation and also in phototherapy [23][24]. The IO NPs have been used as a contrast agent in MRI for diagnosis. Since MRI is a noninvasive and nonradiation technique, it could be used multiple times to follow therapy stages
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Published 06 Feb 2024

Nanoarchitectonics of photothermal materials to enhance the sensitivity of lateral flow assays

  • Elangovan Sarathkumar,
  • Rajasekharan S. Anjana and
  • Ramapurath S. Jayasree

Beilstein J. Nanotechnol. 2023, 14, 988–1003, doi:10.3762/bjnano.14.82

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  • review is provided in Figure 2. Photothermal nanomaterials The photothermal properties of nanomaterials have been extensively studied for therapeutic applications. Heat generation under exposure to near-infrared (NIR) light is commonly used against deadly diseases such as cancer [28][29][30]. Because of
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Published 04 Oct 2023

The origin of black and white coloration of the Asian tiger mosquito Aedes albopictus (Diptera: Culicidae)

  • Manuela Rebora,
  • Gianandrea Salerno,
  • Silvana Piersanti,
  • Alexander Kovalev and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 496–508, doi:10.3762/bjnano.14.41

Graphical Abstract
  • in the near-infrared spectral range (>900 nm) is about 2.5 times stronger than the WS1 reflection (!) and up to five times stronger (at 45° detection) than in the UV spectral range (<300 nm) (Figure 6). Pronounced specular reflection (at 45° detection) could be seen at proximal and distal
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Published 17 Apr 2023

Conjugated photothermal materials and structure design for solar steam generation

  • Chia-Yang Lin and
  • Tsuyoshi Michinobu

Beilstein J. Nanotechnol. 2023, 14, 454–466, doi:10.3762/bjnano.14.36

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  • AM1.5 standard is used in solar cell engineering with a fraction of 3% in the ultraviolet (UV) region (300–400 nm), of 45% in the visible region (400–700 nm), and of 52% in the near-infrared (NIR) and infrared region (700–2500 nm). This suggests that PTMs need to have a high absorption at wavelengths
  • scattering. After crosslinking PANI, the porous hydrogel sample exhibited a broader and stronger absorption (98.5%) than the pure PEGDA sample, especially in the visible and near-infrared regions. Polydopamine: Polydopamine (PDA) has shown great potential in the field of solar-driven desalination due to its
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Published 04 Apr 2023

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

  • Akeem Adeyemi Oladipo and
  • Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

Graphical Abstract
  • structure, shape, and environment. If these parameters are adjusted, the optical responses of Bi nanoparticles can be tuned from the near-ultraviolet to the near-infrared region. According to Figure 3, the bandgap of different bismuth-based photocatalysts has been observed to fall between 1.30 and 3.85 eV
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Published 03 Mar 2023

Recent progress in cancer cell membrane-based nanoparticles for biomedical applications

  • Qixiong Lin,
  • Yueyou Peng,
  • Yanyan Wen,
  • Xiaoqiong Li,
  • Donglian Du,
  • Weibin Dai,
  • Wei Tian and
  • Yanfeng Meng

Beilstein J. Nanotechnol. 2023, 14, 262–279, doi:10.3762/bjnano.14.24

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  • ]. The precisely targeted thermal killing of tumor tissue can help to improve the efficiency of energy utilization and reduce power and time during ablation, which will minimize damage to normal tissue around the tumor [95]. Photothermal therapy (PTT) can generate thermal energy by using near-infrared
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Published 27 Feb 2023

Cyclodextrins as eminent constituents in nanoarchitectonics for drug delivery systems

  • Makoto Komiyama

Beilstein J. Nanotechnol. 2023, 14, 218–232, doi:10.3762/bjnano.14.21

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  • very stiff. Upon photoirradiation, however, the crosslinkings for the gel formation are broken almost completely, releasing the encapsulated drugs (e.g., DOX as anticancer drug). 2.3 Upconversion nanoparticles to release drugs by near-infrared light As an external stimulus for DDSs, near-infrared (NIR
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Published 09 Feb 2023

Concentration-dependent photothermal conversion efficiency of gold nanoparticles under near-infrared laser and broadband irradiation

  • Vikas,
  • Raj Kumar and
  • Sanjeev Soni

Beilstein J. Nanotechnol. 2023, 14, 205–217, doi:10.3762/bjnano.14.20

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  • Organisation, Sector-30C, Chandigarh-160030, India 10.3762/bjnano.14.20 Abstract The photothermal conversion efficiency of gold different nanoparticles (GNPs) in different concentrations (1.25–20 µg/mL) and at different irradiation intensities of near-infrared (NIR) broadband and NIR laser irradiation is
  • applications. Keywords: broadband irradiation; gold nanoparticles; laser; near-infrared; photothermal conversion efficiency; plasmonics; Introduction Plasmonic photothermal properties of gold nanoparticles (GNPs) are useful for a variety of applications including those in biomedicine, such as drug delivery
  • broadband light source and a near-infrared laser (for comparison). Gold nanospheres (GNSs) of 40 nm diameter and gold nanorods (GNRs) of sizes 25 × 47 nm, 10 × 38 nm, and 10 × 41 nm were examined. The photothermal conversion efficiency for these GNPs is reported for different nanoparticle concentrations and
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Published 06 Feb 2023

Structural, optical, and bioimaging characterization of carbon quantum dots solvothermally synthesized from o-phenylenediamine

  • Zoran M. Marković,
  • Milica D. Budimir,
  • Martin Danko,
  • Dušan D. Milivojević,
  • Pavel Kubat,
  • Danica Z. Zmejkoski,
  • Vladimir B. Pavlović,
  • Marija M. Mojsin,
  • Milena J. Stevanović and
  • Biljana M. Todorović Marković

Beilstein J. Nanotechnol. 2023, 14, 165–174, doi:10.3762/bjnano.14.17

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  • CQDs/PU samples were dipped in a solution of TEMP in ethanol at a concentration of 30 mM and irradiated with a 3 W blue LED for 12 h. Time-resolved near-infrared luminescence of O2 (1Δg) at 1270 nm after excitation by Quantel Q-smart 450 Nd YAG laser (wavelength of 355 nm, pulse length of ca. 5 ns) was
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Published 30 Jan 2023

Facile preparation of Au- and BODIPY-grafted lipid nanoparticles for synergized photothermal therapy

  • Yuran Wang,
  • Xudong Li,
  • Haijun Chen and
  • Yu Gao

Beilstein J. Nanotechnol. 2022, 13, 1432–1444, doi:10.3762/bjnano.13.118

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  • near-infrared (NIR) absorption [2]. Various gold nanoscale platforms, including nanostars, nanorods, nanospheres, nanoshells, and nanocages, have been designed as PTAs for PTT. Gold nanorods (ca. 50 nm), nanoshells (ca. 130 nm), and nanoparticles with large sizes (>50 nm) are suitable for PTT because
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Published 02 Dec 2022

Near-infrared photoactive Ag-Zn-Ga-S-Se quantum dots for high-performance quantum dot-sensitized solar cells

  • Roopakala Kottayi,
  • Ilangovan Veerappan and
  • Ramadasse Sittaramane

Beilstein J. Nanotechnol. 2022, 13, 1337–1344, doi:10.3762/bjnano.13.110

Graphical Abstract
  • nanocrystals. The X-ray diffraction pattern confirms the hexagonal structure. Due to the near-infrared light absorption capability, the synthesized QDs were used as the sensitizer to fabricate QDSCs. The fabricated QDSCs were characterized by using electrochemical impedance spectroscopy and photovoltaic
  • . Hence, they have application potential in optoelectronic devices. Herein, we synthesized, for the first time, Ag, Zn, Ga, S, and Se-based alloyed QDs (AZGSSe QDs) and investigated the optoelectric and morphological properties. Due to the near-infrared (NIR) light absorption, the QDs were used as
  • spectrum of colloidal AZGSSe QDs (Figure 4a) reveals a wide absorption range in the near-infrared (NIR) region. This confirms the NIR photoactive nature of the synthesized QDs. Figure 4b depicts the Tauc plot [30] of the synthesized QDs. From this, the bandgap energy of AZGSSe QDs was found to be 1.37 eV
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Published 14 Nov 2022

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

Graphical Abstract
  • photopolymerization of photosensitive polymers, but in this case each layer of the polymer is projected as whole [152]. A more complicated method is two‑photon polymerization (TPP), which uses a near-infrared beam instead of UV radiation. TPP initiates the polymerization of the resin by multiphoton absorption [153
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Published 24 Oct 2022

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

  • Aisha Kanwal,
  • Naheed Bibi,
  • Sajjad Hyder,
  • Arif Muhammad,
  • Hao Ren,
  • Jiangtao Liu and
  • Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

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Published 05 Oct 2022

Numerical study on all-optical modulation characteristics of quantum cascade lasers

  • Biao Wei,
  • Haijun Zhou,
  • Guangxiang Li and
  • Bin Tang

Beilstein J. Nanotechnol. 2022, 13, 1011–1019, doi:10.3762/bjnano.13.88

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  • number of photons in the cavity of a mid-infrared QCL modulated with near-infrared optical injection. The results were consistent with an experiment, where the injected light increases the electron population and lifetime, but does not affect the optical gain obviously. Our study can be helpful for
  • , thus reducing the number of photons in the cavity and achieving modulation. Conclusion In this paper, to explore the phenomenon of all-optical modulation of QCLs, we studied the characteristics of a mid-infrared QCL using near-infrared optical injection of several mW at wavelengths of 820 nm and 1550
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Published 23 Sep 2022

Zinc oxide nanostructures for fluorescence and Raman signal enhancement: a review

  • Ioana Marica,
  • Fran Nekvapil,
  • Maria Ștefan,
  • Cosmin Farcău and
  • Alexandra Falamaș

Beilstein J. Nanotechnol. 2022, 13, 472–490, doi:10.3762/bjnano.13.40

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  • nanostructures, however, are significantly inferior to those on noble metals since the LSPR is centred in the near-infrared in the case of the conduction band (CB) and in the UV region in the case of the valence band (VB) [14]. Therefore, concrete solutions have been proposed to improve the EM enhancement in ZnO
  • unoccupied molecular orbital level (LUMO) of the analyte molecules match the conduction band (CB) and valence band (VB) of the semiconductor. The EM effect can be amplified by shifting the LSPR peak to the near infrared (NIR) or visible spectral region by doping the semiconductor and, thus, increasing the
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Published 27 May 2022

Photothermal ablation of murine melanomas by Fe3O4 nanoparticle clusters

  • Xue Wang,
  • Lili Xuan and
  • Ying Pan

Beilstein J. Nanotechnol. 2022, 13, 255–264, doi:10.3762/bjnano.13.20

Graphical Abstract
  • diameter of 329.2 nm. They are highly absorptive at the near-infrared wavelength of 808 nm and efficient at locally converting light into heat. In vitro experiments using light-field microscopy and cell viability assay showed that Fe3O4 NPCs, in conjunction with near-infrared irradiation, effectively
  • ablated A375 melanoma cells by inducing overt apoptosis. Consistently, in vivo studies using BALB/c mice found that intratumoral administration of Fe3O4 NPCs and concomitant in situ exposure to near-infrared light significantly inhibited the growth of implanted tumor xenografts. Finally, we revealed, by
  • the promise of Fe3O4 NPCs as a new PTT option to treat melanoma. Keywords: Fe3O4 nanoparticle clusters; heat shock protein 70; melanoma; near infrared; photothermal therapy; Introduction The global incidence of melanoma, one of the deadliest forms of cancer, has kept increasing annually over the
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Published 22 Feb 2022

Engineered titania nanomaterials in advanced clinical applications

  • Padmavati Sahare,
  • Paulina Govea Alvarez,
  • Juan Manual Sanchez Yanez,
  • Gabriel Luna-Bárcenas,
  • Samik Chakraborty,
  • Sujay Paul and
  • Miriam Estevez

Beilstein J. Nanotechnol. 2022, 13, 201–218, doi:10.3762/bjnano.13.15

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  • drawback of using TiO2 as photosensitizer is the shallow penetration depth in tissues as it gets activated only by UV light; however, for deep penetration of light into tissues, the wavelength should be in the near-infrared (NIR) window (700–1100 nm) [111]. TiO2 nps can be retained in the body for more
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Published 14 Feb 2022

Self-assembly of amino acids toward functional biomaterials

  • Huan Ren,
  • Lifang Wu,
  • Lina Tan,
  • Yanni Bao,
  • Yuchen Ma,
  • Yong Jin and
  • Qianli Zou

Beilstein J. Nanotechnol. 2021, 12, 1140–1150, doi:10.3762/bjnano.12.85

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  • diagnosis and treatment because of its strong absorption ability in the near-infrared region [84]. However, ICG has poor stability and a short half-life, thus limiting its use in photothermal therapy. Liu et al. [85] developed a nanoparticle based on phenylalanine, geniposide, and ICG for antitumor
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Published 12 Oct 2021

First-principles study of the structural, optoelectronic and thermophysical properties of the π-SnSe for thermoelectric applications

  • Muhammad Atif Sattar,
  • Najwa Al Bouzieh,
  • Maamar Benkraouda and
  • Noureddine Amrane

Beilstein J. Nanotechnol. 2021, 12, 1101–1114, doi:10.3762/bjnano.12.82

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  • transition between Se p to Sn p orbitals at the near-infrared region, making it promising for applications in solar energy conversion. This work provides a promising platform for performing experimental work on thermoelectric applications of π-SnSe. Besides, the remarkable thermoelectric and optoelectronic
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Published 05 Oct 2021

Assessment of the optical and electrical properties of light-emitting diodes containing carbon-based nanostructures and plasmonic nanoparticles: a review

  • Keshav Nagpal,
  • Erwan Rauwel,
  • Frédérique Ducroquet and
  • Protima Rauwel

Beilstein J. Nanotechnol. 2021, 12, 1078–1092, doi:10.3762/bjnano.12.80

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  • a wider choice of emission wavelengths compared to conventional lighting systems. Inorganic LED consist of inorganic semiconductor materials in the active region, for example thin films of GaAs that emit in the red to near-infrared (>700 nm) region [4]. Ga-based LED belong to the III–V group of
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Published 24 Sep 2021

A Au/CuNiCoS4/p-Si photodiode: electrical and morphological characterization

  • Adem Koçyiğit,
  • Adem Sarılmaz,
  • Teoman Öztürk,
  • Faruk Ozel and
  • Murat Yıldırım

Beilstein J. Nanotechnol. 2021, 12, 984–994, doi:10.3762/bjnano.12.74

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  • synthesized nanocrystals exhibit strong absorption over a broad spectrum including the ultraviolet and the near-infrared region. Furthermore, the graph of the diffuse reflectance spectroscopy is given as an inset in Figure 3a. The obtained result show that the absorption of CuNiCoS4 nanocrystals increases
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Published 02 Sep 2021

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

  • Nabojit Das,
  • Akash Kumar and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

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  • characteristics, such as interesting plasmonic, optical and catalytic properties, and facile surface modification with tunable size and morphology [1]. Among these properties, the ability of surface plasmon resonance (SPR) at visible to near-infrared (NIR) wavelengths is the most striking characteristic feature
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Published 18 Aug 2021

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

  • Sepand Tehrani Fateh,
  • Lida Moradi,
  • Elmira Kohan,
  • Michael R. Hamblin and
  • Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

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Published 11 Aug 2021

Recent progress in actuation technologies of micro/nanorobots

  • Ke Xu and
  • Bing Liu

Beilstein J. Nanotechnol. 2021, 12, 756–765, doi:10.3762/bjnano.12.59

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  • actuation Wang et al. [31] designed a needle-shaped liquid metal gallium nanoswimmer with controllable movement under near-infrared laser irradiation. Its propulsion force is mainly derived from the thermophoresis force generated by the temperature gradient along the longitudinal axis. Experiments show that
  • dual-mode fluorescence and magnetic resonance imaging. Using magnetic targeting, the micro/nanorobot broke through complex physiological barriers and entered tumors while carrying a photosensitizer. After that, local high temperature was generated by a near-infrared laser, and observable and accurate
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Published 20 Jul 2021
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