Versatile hydrogel particles were obtained by cross-linking of water-soluble chitosan (WSC) with @entity14917 (SA) in an acid-free medium. The structure of the particles was investigated with Fourier transform infrared spectra, differential scanning calorimetry and thermogravimetric analysis. These characterization results confirmed that the product was physically cross-linked hydrogel consisted of WSC and SA. It was found that the swelling ratio of the particles depended on the formation time, which indicated that their cross-linking degrees were easily modulated. The particles showed high capability to bind heavy metal ions, acidic gas and basic gas. The adsorption capacities of the particles could reach 88.2 and 66.0 mg/g for @entity8863 and @entity10781 , 33.8 and 30.3 mg/g for @entity3655 and @entity3958 , respectively. Especially, the existence of water significantly enhanced the adsorption capacities for @entity3655 and @entity3958 . In addition, the mild formation condition made the particles suitable for encapsulating bioactive substance. The loading efficiency of the beads for hemoglobin (HB) reached close to 100%. Moreover, the release behavior of the HB-loaded particles was pH-sensitive. In contrast, HB was deactivated during encapsulating it with chitosan and @entity14917 . Obviously, such a kind of particles was an attractive adsorbent or carrier.

Versatile particles from water-soluble chitosan and XXXX for loading toxic or bioactive substance.

@entity3958 :: ('CHEBI:36945', 'Chemical') :: ['H2S'] @entity8863 :: ('CHEBI:29036', 'Chemical') :: ['Cu(2+)'] @entity14917 :: ('MESH:C008970', 'Chemical') :: ['sodium alginate'] @entity3655 :: ('CHEBI:16134', 'Chemical') :: ['NH3'] @entity10781 :: ('CHEBI:49807', 'Chemical') :: ['Pb(2+)']
@entity14917 :: (MESH:C008970,Chemical) :: ['sodium alginate']
