Grzegorz Celichowski

Grzegorz Celichowski
University of Lodz · Department of Technology and Chemistry of Materials

DSc, PhD, associate professor
Synthesis and modification of core-shell silver nanowires - metals oxides for photocatalytic, electronic and bio applic.

About

119
Publications
31,224
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Introduction
My main areas of research interest: Synthesis, characterisations and modifications and of silver nanowires for textiles, transparent electrodes and sensors. Synthesis and testing of Core-shell (silver covered by metals oxides) nanostructures as active optical and photocatalytic systems. Synthesis and investigations of AgNP conjugated with tannins as an antiviral system. Deposition thin and ultrathin coatings from solution and their characterisations by spectroscopic and microscopic methods.
Additional affiliations
February 2012 - present
University of Lodz
Position
  • Professor (Associate)
Description
  • Permanent possition
July 2001 - December 2001
University of Wisconsin - Milwaukee
Position
  • PostDoc Position
Description
  • Realisation of The National Science Fundation project: An Investigation of The Chemistry of Extreme Pressure Lubricant Additives.
November 1997 - February 2012
University of Lodz
Position
  • Adiunct
Education
May 2010 - May 2011
Lodz University of Technology
Field of study
  • Materials Chemistry
September 1993 - September 1997
University of Lodz
Field of study
  • Chemistry
September 1987 - July 1992
University of Lodz
Field of study
  • Chemistry

Publications

Publications (119)
Article
Atmospheric frosting and icing pose significant problems for critical and common-use infrastructures. Passive anti-frosting and anti-icing strategies that require no energy input have been actively sought, with no viable and permanent solutions known yet. Bioinspired superhydrophobic (SH) materials have been considered promising path to explore; ho...
Article
Full-text available
The aim of the study was to investigate in vivo whether the application of immobilized superoxide dismutase (SOD) and catalase (CAT) could enhance DNA repairing systems and reduce level of CPD (cyclobutane pyrimidine dimers) and 6-4PP ((6–4) pyrimidine-pyrimidone photoproducts), and whether the immobilization on gold (AuNPs) and silver (AgNPs) nano...
Article
Full-text available
New functionalization methods of meta- and para-aramid fabrics with silver nanowires (AgNWs) and two silanes (3-aminopropyltriethoxysilane (APTES)) and diethoxydimethylsilane (DEDMS) were developed: a one-step method (mixture) with AgNWs dispersed in the silane mixture and a two-step method (layer-by-layer) in which the silanes mixture was applied...
Article
Full-text available
(1) Background: Lactoferrin has been recognized as a potent inhibitor of human herpetic viruses, such as herpes simplex type 1 (HSV-1) and 2 (HSV-2). In this work, we tested if silver and gold nanoparticles modified with lactoferrin (LF-Ag/AuNPs) can become novel microbicides with additional adjuvant properties to treat genital herpes infection. (2...
Article
Full-text available
This study presents core/shell Ag/SnO2 nanowires (Ag/SnO2NWs) as a new photocatalyst for the rapid degradation of organic compounds by the light from the visible range. AgNWs after coating with a SnO2 shell change optical properties and, due to red shift of the absorbance maxima of the longitudinal and transverse surface plasmon resonance (SPR), mo...
Presentation
Kompozyty polimerowe na bazie nanodrutów srebra (AgNW) ze względu na swoje unikalne właściwości (w szczególności optyczne oraz przewodzące), cieszą się obecnie dużą popularnością. Mimo to nanokompozyty AgNW na bazie podstawowych kauczuków, takich jak kauczuk butadienowo – styrenowy (SBR), butadienowo – akrylonitrylowy (NBR) czy karboksylowany kaucz...
Presentation
Full-text available
W związku z coraz większymi wymaganiami stawianymi nanokompozytom warstwowym, coraz ważniejszym staje się, by powłokę zabezpieczającą nanostruktury móc dopasować „na miarę” do materiału podłoża. Dla podłoży gumowych, pokrytych nanostrukturami, jest to szczególnie ważne – ze względu na szeroki zakres ruchu. Obiecującym materiałem do stosowania w tym...
Conference Paper
Full-text available
Kompozyty polimerowe na bazie nanodrutów srebra (AgNW) ze względu na swoje unikalne właściwości (w szczególności optyczne oraz przewodzące), cieszą się obecnie dużą popularnością. Mimo to nanokompozyty AgNW na bazie podstawowych kauczuków, takich jak kauczuk butadienowo-styrenowy (SBR), butadienowo-akrylonitrylowy (NBR) czy karboksylowany kauczuk b...
Presentation
Full-text available
Kompozyty polimerowe na bazie nanodrutów srebra (AgNW) ze względu na swoje unikalne właściwości (w szczególności optyczne oraz przewodzące), cieszą się obecnie dużą popularnością. Mimo to nanokompozyty AgNW na bazie podstawowych kauczuków, takich jak kauczuk butadienowo – styrenowy (SBR), butadienowo – akrylonitrylowy (NBR) czy karboksylowany kaucz...
Article
Full-text available
The research was aimed at checking the effect of monoperoxy derivative of epoxy resin (PO) on the possibility of rubber crosslinking and a subsequent adhesion of the modified rubber to silver wires. Three of the commonly industrially used rubbers were selected for the study: styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR) and c...
Article
Full-text available
This research was aimed at verifying the effect of carboxy-containing peroxy oligomer (CPO) addition on the possibility of rubber crosslinking and a subsequent adhesion of the modified rubber to silver wires. Three commonly industrially used rubbers were selected for the study: styrene–butadiene rubber (SBR), acrylonitrile–butadiene rubber (NBR) an...
Article
In this paper, we present systematic studies concerning the synthesis protocol, functionalisation process, characterisation and cytotoxic effects of thioglucose‐modified gold nanoparticles (TG‐AuNPs). The characterisation of AuNPs and TG‐AuNPs was performed using: scanning transmission electron microscopy (STEM), Dynamic Light Scattering (DLS) and...
Article
Full-text available
The study presents a rapid method of SnO 2 shell formation on AgNWs for both high environmental stability and thermal management on para -aramid fabric.
Presentation
Full-text available
Nowadays, it is increasingly necessary to use ever-newer polymer composites for increasingly demanding applications. In the case of composites containing a metallic phase, especially with nanometric dimensions, such as nanoparticles, nanotubes, or nanowires, it is crucial to ensure good adhesion between the continuous and dispersed phases, which ca...
Article
Full-text available
This study describes a new method for passivating Ag nanoparticles (AgNPs) with SnO 2 layer and their further treatment by microwave irradiation. The one-step process of SnO 2 layer formation was carried out by adding sodium stannate to the boiling aqueous AgNPs solution, which resulted in the formation of core@shell Ag@SnO 2 nanoparticles. The coa...
Article
Full-text available
The aim of the study was to modify the surface free energy (SFE) of meta- (mAr) and para-aramid (pAr) yarns by their activation in low-pressure air radio frequency (RF) (40 kHz) plasma and assessment of its impact on the properties of the yarns. After 10 and 90 min of activation, the SFE value increased, respectively, by 14% and 37% for mAr, and by...
Article
Significance of MoS2 nanoparticles as a lubricant or drug carriers indicates the need to assess their safety. In the study we analyzed the effects of MoS2 nano- and microparticles and their internalization in vitro, using 2D and 3D culture models of human hepatoma HepG2 cell line. MoS2 micro- and nanoparticles were characterized with high resolutio...
Article
Full-text available
Background: Polyphenols possess antioxidant, anti-inflammatory and antimicrobial properties and have been used in the treatment of skin wounds and burns. We previously showed that tannic acid-modified AgNPs sized >26 nm promote wound healing, while tannic acid-modified AgNPs sized 13 nm can elicit strong local inflammatory response. In this study,...
Article
Despite growing applications of molybdenum(IV) sulfide (MoS2) nano- and microparticles in their capacity as lubricants, data available on their safety are scarce. In this study the effect of MoS2 nano- and microparticles after single intratracheal instillation in rats has been analyzed. MoS2 suspensions were administered at the dose of 1.5 or 5 mg...
Conference Paper
Full-text available
Nowadays, it often becomes necessary to modify polymer materials in order to meet more and more demanding applications. In the case of dispersive composites containing a metallic phase, especially of nanometric dimensions, such as nanoparticles, nanotubes or nanowires, it is crucial to ensure good adhesion between the continuous and the dispersed p...
Article
The adsorption process of proteins on nanoparticles (NPs) is spontaneous and depends on many factors, including the NP composition, size, shape, dispersity, and surface chemistry, as well the protein type, its chemical structure, affinity to NP surface, size, shape, availability of functional groups, etc. As a result, prediction of the adsorption p...
Article
Full-text available
This study was undertaken to assess cytotoxic effects of selected aluminium compounds, parabens and phthalates in combination with silver nanoparticles (AgNP, 15 and 45 nm by STEM, Ag15 and Ag45, respectively) on cell lines of the human breast epithelium, normal (MCF-10A) and transformed (MDA-MB-231 and MCF-7). Combination indices were the most spe...
Article
The aim of this study was to assess whether silver nanoparticles (AgNP) or selected cosmetic ingredients may modify functions of various immunocompetent cell populations. To this end, the effect of two AgNP (size of 15 nm or 45 nm), alone and in combination with aluminium chloride, butyl paraben, di-n-butyl phthalate or diethyl phthalate was assess...
Article
Aim: Superoxide dismutase (SOD) and catalase (CAT) immobilized on gold nanoparticles (AuNP) and silver nanoparticles (AgNP) nanoparticles were used to reduce UV radiation-induced oxidative stress in rat skin. Materials & methods: The antioxidant influence of the enzymes was investigated on level of malondialdehyde, 8-hydroksy-2'deoksyguanozine, mye...
Presentation
Full-text available
W dzisiejszych czasach coraz częściej koniecznym jest stosowanie coraz to nowych kompozytów po-limerowych, do coraz bardziej wymagających zastosowań. W przypadku kompozytów zawierających w sobie fazę metaliczną, szczególnie o wymiarach nanometrycznych, jak na przykład nanocząstki, nanorurki czy nanodruty, kluczowym staje się zapewnienie dobrej adhe...
Conference Paper
Full-text available
Wulkanizaty SBR z dodatkiem żywicy nadtlenkowej słowa kluczowe: kauczuk butadienowo-styrenowy, żywica, adhezja, srebro W dzisiejszych czasach coraz częściej koniecznym jest stosowanie coraz to nowych kompozytów polimerowych, do coraz bardziej wymagających zastosowań. W przypadku kompozytów zawierających w sobie fazę metaliczną, szczególnie o wymiar...
Poster
Full-text available
W dzisiejszych czasach coraz częściej koniecznym jest stosowanie coraz to nowych kompozytów polimerowych, do coraz bardziej wymagających zastosowań. W przypadku kompozytów zawierających w sobie fazę metaliczną kluczowym staje się więc zapewnienie dobrej adhezji między fazą ciągłą a rozproszoną, w czym może pomóc dodatek do masy polimeru wszelkiego...
Article
Plant extracts are known for their antihyperglycemic, antioxidant, antimutagenic, antifungal, anti-inflammatory, antiviral and antibacterial properties. These biological properties make plant extracts interesting surface modifiers of nanoparticles (NPs), which are also known for their unique features. Plant extracts can play a multifunctional role...
Article
Herein, is presented the synthesis and characterization of a new group of metallocarbonyl Fe, Ru, Mo, W complexes anchored to the surface of magnetic nanoparticles. Two types of iron oxide core-shell particles were employed to form complexes: containing amino or thiol groups at the surface. The metallocarbonyl complexes and complexes immobilized on...
Article
Full-text available
Superoxide dismutase (SOD) is one of the best characterized enzyme maintaining the redox state in the cell. A bacterial expression system was used to produce human recombinant manganese SOD with a His-tag on the C-end of the protein for better purification. In addition, gold and silver nanoparticles were chemically synthesized in a variety of sizes...
Article
The objective of this work was to elucidate how ice adhesion to solid substrates is related to surface wettability, which, in turn, results from surface chemical composition and nanotopography. The study was carried out using microscopically smooth surfaces of epoxy and SU-8, a negative epoxy-based photoresist. Epoxy resins are known for their outs...
Article
Background: Tannic acid is a plant-derived polyphenol showing antiviral activity mainly because of an interference with the viral adsorption. In this work, we tested whether the modification of silver nanoparticles with tannic acid (TA-AgNPs) can provide a microbicide with additional adjuvant properties to treat genital herpes infection. (2) Method...
Article
Full-text available
Human catalase cDNA was cloned into a pEX-C-His vector. Purified recombinant catalase was immobilized on nanoparticles. Gold and silver nanoparticles were synthesized in a variety of sizes by chemical reduction; no agglomerates or aggregates were observed in any of the colloids during dynamic light scattering or scanning transmission electron micro...
Article
In this study, we present a comparison of the antioxidant activity of catalase immobilized on gold nanoparticles (AuNPs) by two methods: i) directly on the surface of AuNPs (non-specific immobilization), and ii) via chemical bonding using a linker (specific immobilization). Quantification of the enzyme amount adsorbed on the nanoparticle surface wa...
Article
Full-text available
Silver nanoparticles (AgNPs) are promising new antimicrobial agents against a wide range of skin and mucosal pathogens. However, their interaction with the immune system is currently not fully understood. Dendritic cells (DCs) are crucial during development of T cell-specific responses against bacterial and viral pathogens. We have previously shown...
Article
Full-text available
Introduction Silver nanoparticles (AgNPs) have been shown to promote wound healing and to exhibit antimicrobial properties against a broad range of bacteria. In our previous study, we prepared tannic acid (TA)-modified AgNPs showing a good toxicological profile and immunomodulatory properties useful for potential dermal applications. Methods In th...
Article
Full-text available
Mucoadhesive gelling systems with tannic acid modified silver nanoparticles were developed for the effective treatment of herpes virus infections. To increase nanoparticle residence time after local application, semi-solid formulations designed from generally regarded as safe (GRAS)excipients were investigated for their rheological and mechanical p...
Chapter
Tannins are phenol derivatives naturally synthesized by plants as metabolic products. For centuries tannins have been used in medicine as agents supporting wound healing, due to their antiinflammatory and antimicrobial properties. Tannic acid is the most common and principal hydrolysable tannin. Here, we describe the method for synthesis of silver...
Article
A study on the hybrid functionalization of cotton and viscose fabrics using silver nanowires (AgNWs) colloid and titanium dioxide (TiO2) sol prepared in sol-gel technique was carried out. The microwave treatment was applied to change the amorphous form of TiO2 to anatase. The photocatalytic activity of both cellulose fabrics was evaluated by decomp...
Article
Vapor phase deposition (VPD) of a homologous series of fluoroalkyl silanes (FAS), containing 3 to 10 carbon atoms in a molecule, on silicon and glass substrates was investigated. Two deposition procedures were compared: 1) VPD carried out at atmospheric pressure, where silanization reactions occur in an unrestricted presence of FAS vapors and atmos...
Article
In this study the effect of silver nanoparticles (AgNPs) on proliferation of estrogen receptor (ER)-positive human breast cancer MCF-7/BUS cells was assessed by means of in vitro assay. The cells were exposed in the absence of estrogens to AgNPs alone or in combination with aluminum chloride (AlCl3), butyl paraben (BPB) and di-n-butyl phthalate (DB...
Data
A study on the hybrid functionalization of cotton and viscose fabrics using silver nanowires (AgNWs) colloid and titanium dioxide (TiO2) sol prepared in sol-gel technique was carried out. The microwave treatment was applied to change the amorphous form of TiO2 to anatase. The photocatalytic activity of both cellulose fabrics was evaluated by decomp...
Article
Full-text available
Alpha particle emitting isotopes are of considerable interest for radionuclide therapy because of their high cytotoxicity and short path length. Due to the relatively high availability, 211 At is actually the most prospective a emitter for targeted radiotherapy. The factor limiting the use of 211 At in targeted therapy is the low in vivo stability...
Article
Full-text available
We describe herein the significance of a sodium citrate and tannic acid mixture in the synthesis of spherical silver nanoparticles (AgNPs). Monodisperse AgNPs were synthesized via reduction of silver nitrate using a mixture of two chemical agents: sodium citrate and tannic acid. The shape, size and size distribution of silver particles were determi...
Article
In this study we present a method to determine the degree to which catalase (CAT) is adsorbed onto gold nanoparticles (AuNPs) using polyacrylamide gel electrophoresis (PAGE) with silver staining. AuNPs (13nm) were synthesized in water by the chemical reduction method and modified with CAT (AuNPs-CAT). The colloidal stability and NP size before and...
Data
We describe herein the significance of a sodium citrate and tannic acid mixture in the synthesis of spherical silver nanoparticles (AgNPs). Monodisperse AgNPs were synthesized via reduction of silver nitrate using a mixture of two chemical agents: sodium citrate and tannic acid. The shape, size and size distribution of silver particles were determi...
Article
Full-text available
The work presents investigation on the water droplet impingement at a substrate with three different surface coating. The experiments are carried out for two temperatures of the surface: 23◦C (room temperature) and −10◦C. The water droplet contact is recorded via ultra-fast camera and simultaneously via fast thermographic camera. The wetting proper...
Article
Organic memories are increasingly being considered as promising candidates for a number of novel consumer applications, such as smart labels and smart packaging devices. Indeed, organic memories can be fabricated on highly flexible substrates at low temperatures from liquid phase, employing for instance printing techniques. In this work, a nonvolat...
Article
Some reports indicate that the silver released from dermally applied products containing silver nanoparticles (AgNP) (e.g. wound dressings or cosmetics) can penetrate the skin, particularly if damaged. AgNP were also shown to have cytotoxic and genotoxic activity. In the present study percutaneous absorption of AgNP of two different nominal sizes (...
Article
Full-text available
In this paper, we present static and dynamic interactions of water droplets with a micro-structured surface that exhibits hydrophobic properties. Droplets with two different diameters (D0 = 0.6 ± 0.1 mm and D0 = 2.6 ± 0.1 mm) were studied for impact velocities in the range of 0.1 ÷ 2.5 m/s. This allowed to investigate the influence of gravity on th...
Article
Nanoparticles present a wide spectrum of chemical, biological, and physical properties which result in their usage in many branches of science. We present an investigation of the interaction between human serum albumin and hybrid gold–tannic acid nanoparticles synthesized via a chemical reduction method. The results obtained demonstrate that tannic...
Article
Full-text available
A study on the functionalization of cotton and viscose fabrics to achieve bifunctional conductive and antibacterial properties was carried out; 0.5 wt% AgNW ethanolic colloid was prepared, and fabrics were dipped and dried in the colloid 1, 10 and 15 times. After one dipping, both fabrics remained nonconductive, and the surface resistance (Rs) of c...
Article
Full-text available
We investigate the dynamics of water contact angle during droplet impact onto substrates with three different surface coatings (one hydrophilic and two hydrophobic). The experiments are carried out for three Weber numbers (We) of approximately 5, 7 and 10. The dynamic contact angle is determined by analysis of consecutive frames of video recordings...